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Dialog Semiconductor Gmbh patents


Recent patent applications related to Dialog Semiconductor Gmbh. Dialog Semiconductor Gmbh is listed as an Agent/Assignee. Note: Dialog Semiconductor Gmbh may have other listings under different names/spellings. We're not affiliated with Dialog Semiconductor Gmbh, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "D" | Dialog Semiconductor Gmbh-related inventors


Regulated power supply voltage and triac hold-up current for a switching power converter

A switching power converter is provided that includes a current source that controls the charging of a storage capacitor to provide a regulated internal power supply voltage.. . ... Dialog Semiconductor Gmbh

Efficient power supply voltage regulation for synchronous rectifier controller

A flyback converter is provided with a synchronous rectifier (sr) controller including a pulse linear regulator (plr) charging path and an ldo charging path. The sr controller is configured to monitor the switching period and/or duty cycle of a power switch in the flyback converter to select between the plr and ldo charging paths.. ... Dialog Semiconductor Gmbh

Voltage regulator with impedance compensation

A regulator configured to provide at an output node a load current at an output voltage is described. The regulator comprises a pass transistor for providing the load current at the output node. ... Dialog Semiconductor Gmbh

System and method for clock synchonisation on a wireless network

A method of synchronising the clocks of a master device and at least a first slave device which are connected on a wireless network. The method includes sending a scan command from the master device to at least the first slave device, setting the master device to a broadcast mode and broadcasting data, the broadcast data comprising a first time stamp; scanning the broadcasting data at at least the first slave device and resetting the clock of the first slave device using the first time stamp. ... Dialog Semiconductor Gmbh

System and method for low latency wireless connection

A method of establishing a low latency connection between a first device and a second device on a wireless network is presented. The method contains the steps of: forming a first wireless connection between the first and second devices; forming at least a second and parallel wireless connection between the first and second devices; and sending data between the first and second devices using at least the first and second connections. ... Dialog Semiconductor Gmbh

Sensor-less buck current regulator with average current mode control

A replica circuit is provided for a buck converter to sense a replica of the current through the low-side switch transistor without the use of a sense resistor.. . ... Dialog Semiconductor Gmbh

Voltage regulator with output capacitor measurement

A voltage regulator which provides an output current at an output voltage at an output node of the voltage regulator, based on an input voltage at an input node of the voltage regulator is described. The voltage regulator has an output amplification stage for deriving the output current at the output node from the input voltage at the input node in dependence of a drive voltage. ... Dialog Semiconductor Gmbh

Synchronous rectifier control with adaptive minimum off-time

A switching power converter may include a power switch coupled to a primary winding of a transformer, and a primary controller configured to turn on and off the power switch, a synchronous rectifier switch coupled to a secondary winding of a transformer, and a synchronous rectifier controller configured to turn on and off the synchronous rectifier switch. The synchronous rectifier controller may monitor a voltage across the synchronous rectifier switch. ... Dialog Semiconductor Gmbh

Frequency hopping for reducing switching power converter noise

A switching power converter is configured to control switching noise by implementing a plurality of pulse width modulation modes of operation. The peak current in each pulse width modulation mode of operation is controlled so that an output power for the switching power converter is continuous with regard to transitions between the pulse width modulation modes.. ... Dialog Semiconductor Gmbh

Dual stage vcc charging for switched mode power supply

A startup circuit is provided for establishing the vcc voltage level of a switching power converter. The startup circuit uses a switch controller and path switching transistor to provide a two-stage vcc capacitor charging that reduces startup time while avoiding short circuit damage through the alternate usage of a high impedance charging path and a low-impedance charging path.. ... Dialog Semiconductor Gmbh

Active startup timing control at fault mode

A power switch transistor for a switching power converter is maintained on during a re-startup period by a zener breakdown voltage following a fault condition for the switching power converter. A source voltage from the power switch transistor is used to charge a vcc capacitor that stores a power supply voltage for a controller for the switching power converter.. ... Dialog Semiconductor Gmbh

Line ripple compensation for switching power converters

A line ripple compensation technique is provided for a switching power converter operating in both a pulse frequency mode of operation and a pulse width modulation mode of operation.. . ... Dialog Semiconductor Gmbh

Low-power and compact voltage sensing circuit

A voltage sensing circuit for a switching power converter includes a comparator having a comparator input stage that processes a voltage from a main dac and a current from a tracking dac.. . ... Dialog Semiconductor Gmbh

Communication interface

An interface for communicating between two device is provided that includes an interface input for receiving an input signal as well as a comparator circuit coupled to the interface input. The comparator circuit is adapted to provide a clock signal and a data signal based on the input signal to a first memory device having a first input for receiving the data signal and a second input for receiving the clock signal.. ... Dialog Semiconductor Gmbh

07/05/18 / #20180191254

Sense resistor short detection for synchronous rectifier

Systems, devices, and methods are provided to enable power converters to use two or more sensing elements to reliably detect a short circuit (or soft-short circuit) existing in the power converter and distinguish these conditions from other operating conditions, such as low voltage conditions or normal operating conditions. The disclosed embodiments enable the accurate detection of fault conditions, such as short circuits or soft short conditions, using a number of sensing elements, such as sense resistors and the inherent resistance of switching devices, while preventing the detection of false positives due to other factors such as low input voltage.. ... Dialog Semiconductor Gmbh

06/21/18 / #20180175734

Multi-phase switching converter

A method and a circuit of operating a multi-phase switching converter is presented. The circuit contains a plurality of phase circuits. ... Dialog Semiconductor Gmbh

06/21/18 / #20180175726

Hybrid dcdc power converter with increased efficiency

A power converter to convert power between a first converter voltage at a first converter port and a second converter voltage at a second converter port is presented. It contains a first capacitor network, an inductor and a first switching matrix to arrange the first capacitor network and the inductor within different states. ... Dialog Semiconductor Gmbh

06/07/18 / #20180159545

Apparatus and method for controlling an oscillating device

An apparatus and method for controlling an oscillating device is presented. In particular, a controller for adjusting the frequency of a drive signal driving a haptic actuator is presented. ... Dialog Semiconductor Gmbh

06/07/18 / #20180159457

Apparatus and method for controlling an oscillating device

An apparatus and method for stopping a linear resonant actuator is presented. A control system for use with an oscillating device has a response signal having a back electromotive force component and a driver adapted to provide a drive signal to the oscillating device. ... Dialog Semiconductor Gmbh

06/07/18 / #20180159452

Apparatus and method for controlling a device

An apparatus and method for adjusting an amplitude of a drive signal applied to a device are presented. The method of driving a device includes providing a drive signal to drive the device, monitoring a gradient value of the response signal; and changing an amplitude level of the drive signal based on the gradient value. ... Dialog Semiconductor Gmbh

06/07/18 / #20180159428

Feedback scheme for non-isolated power supply

Embodiments described herein describe a switching power converter that includes a switch, an inductor, a diode, and a controller that generates a control signal to turn on and turn off the switch. The controller generates the control signal by generating a reference signal, integrating a difference between a voltage value of the generated reference signal, and a voltage difference between voltage values of the switching node and the second output terminal, and generating the control signal by processing the integrated voltage difference.. ... Dialog Semiconductor Gmbh

06/07/18 / #20180158804

Integrated circuit package for assembling various dice in a single ic package

An integrated circuit ic package with one or more pins protruding from the ic package for electrically connecting the ic package with a printed circuit board pcb is presented. The ic package has a first die with a first electronic component, a second die with a second electronic component, and a conductive plate having a plane surface. ... Dialog Semiconductor Gmbh

06/07/18 / #20180158289

Apparatus and method for controlling a haptic actuator

A haptic system with a haptic actuator and a voltage sensor coupled to the haptic actuator, to sense a voltage across the haptic actuator. The voltage across the haptic actuator has a back electromotive force component. ... Dialog Semiconductor Gmbh

05/31/18 / #20180152107

Drive scheme for weakly coupled coils

A variable efficiency and response buck converter is achieved. The device includes a multi-phase switch, the coupled coils, the filter capacitor, and the load. ... Dialog Semiconductor Gmbh

05/31/18 / #20180152105

Feedback voltage dc level cancelling for configurable output dc-dc switching converters

A system is disclosed which provides feedback voltage dc level cancelling for a configurable output of a dc-dc switching converter. By simplifying the design, the operational amplifier can be used for a wider output voltage range. ... Dialog Semiconductor Gmbh

05/31/18 / #20180152102

Apparatus and method of a slope regulator and regulation slope of switching power fets

In summary, a switching circuit comprising a high side (hs) switch coupled to the output, a low side (ls) switch comprising a mosfet coupled to the output, and a slope regulator core coupled to the gate of said low side (ls) switch configured to provide control signals to said slope regulator core. In addition, a method of providing a method of a switch circuit comprising the steps the first step, (a) providing a circuit comprising a low side (ls) switch, a high side (hs) switch, and a slope regulator wherein said slope regulator comprises a fast mode, a slope regulator mode, and a hold mode, the second step (b) activating said slope regulator, the third step (c) choosing a fast mode or a slope regulation mode, the fourth step (d) applying either a fast mode or slope regulation mode; the fifth step (e) evaluating the polarity of the signal, the sixth step (f) toggle signal hold_on if the gate is low or toggle signal hold_off if the gate is high.. ... Dialog Semiconductor Gmbh

05/31/18 / #20180150091

Method and apparatus for dc-dc converter with boost/low dropout (ldo) mode control

A low dropout (ldo) device with improved linear mode comprising an error amplifier, a programmable attenuation factor circuit coupled to said error amplifier, a feedback network whose input is electrically connected to said programmable attenuation factor circuit and whose output is electrically coupled to the negative input of said error amplifier, a high side (hs) pre-drive circuit whose input is a high impedance (hiz) mode signal, a low side (ls) pre-drive circuit whose input is a low pull-down input mode signal, a high side (hs) output stage element electrically coupled to said high side (hs) pre-drive circuit, a low side (ls) output stage element electrically coupled to said low side (ls) pre-drive circuit, and a high side sense (hsense) output stage element whose gate is electrically coupled to said high side (hs) pre-drive circuit, and whose gate and source are electrically connected to the output of said error amplifier.. . ... Dialog Semiconductor Gmbh

05/10/18 / #20180131273

Switching power supply

A power supply is disclosed. The power supply includes a switching converter for providing an output voltage comprising a power switch coupled to a driver for driving the power switch with an on-off switching cycle; and a voltage threshold indicator. ... Dialog Semiconductor Gmbh

05/10/18 / #20180130793

Electrostatic discharge device and split multi rail network with symmetrical layout design technique

A symmetrical layout technique for an electrostatic discharge esd device and a corresponding power supply network is presented. The esd device protects an electronic circuit against an overvoltage or overcurrent and contains a first contact area to establish an electrical contact with a first supply rail, a second contact area to establish an electrical contact with a second supply rail, and a third contact area to establish an electrical contact with a third supply rail. ... Dialog Semiconductor Gmbh

05/03/18 / #20180120887

High precision voltage reference circuit

A high precision voltage reference circuit is disclosed which replaces two current bias sources, with a single current mirror. Curvature-error correction is established with a modified current mirror circuit. ... Dialog Semiconductor Gmbh

04/12/18 / #20180103523

Adjusting color temperature in a dimmable led lighting system

A led lighting system, such as a dimmable led lamp, that may simulate the performance of an incandescent bulb. Led strings of different colors may be connected to the output of a single led driver that regulates an overall intensity of light produced by the led lighting system. ... Dialog Semiconductor Gmbh

04/12/18 / #20180102765

Apparatus and method for temperature measurement and/or calibration via resonant peaks in an oscillator

An apparatus and method for a temperature and calibration utilizing resonant frequency peaks in an oscillator. A circuit providing resonant peaks for utilization for temperature measurements comprising a resonator device for providing an oscillating source, a variable gain-bandwidth amplifier in parallel with the crystal/resonator for providing modulation of the gain and/or bandwidth driving the crystal/resonator, and control of resonant peaks for selection for oscillation, a first capacitor electrically coupled to the parallel combination of the input of the variable gain-bandwidth amplifier, and the resonator device for providing charge storage for oscillation, and a second capacitor electrically coupled to parallel combination of the output of the variable gain-bandwidth amplifier, and the resonator device for providing charge storage for oscillation.. ... Dialog Semiconductor Gmbh

04/12/18 / #20180102710

Single stage switching power converter with improved primary only feedback

A switching power converter is provided that extrapolates from a reference voltage during dead periods of a rectified input voltage as determined from a comparison of an isense voltage to a current threshold.. . ... Dialog Semiconductor Gmbh

04/05/18 / #20180097490

Circuit and method for a high common mode rejection amplifier by using a digitally controlled gain trim circuit

An amplifier comprising a differential amplifier configured to be provide a comparator function, and a gain trimming circuit is electrically configured to provide gain trimming using a t-network comprising a varistor element. In addition, a method of trimming the gain of a differential amplifier, comprising the steps of a first step, (a) providing the differential amplifier comprising resistors in both of its paths, a second step, (b) providing a varistor in a t-network between both said paths; and lastly, a third step, (c) trimming the gain of the differential amplifier by adjusting the varistor's resistance.. ... Dialog Semiconductor Gmbh

03/29/18 / #20180091055

Asymmetric two-stage dc-dc switching converter

A asymmetric two-stage dc-dc switching converter, using multi-stage phases, in parallel to single-stage phases, to supply an output voltage, is described. An intermediate voltage supply is used to provide supply to some second-stage phases. ... Dialog Semiconductor Gmbh

03/29/18 / #20180091041

Switching power converter with magnetizing current shaping

A switching power converter is provided that uses at least two peak current thresholds. In particular, the switching power converter clamps a desired peak current to not fall below a low peak current threshold value while a rectified input voltage is decreasing and to not fall below a high peak current threshold value subsequent to zero crossing times for an ac input voltage.. ... Dialog Semiconductor Gmbh

03/22/18 / #20180084615

Led dimming with slow data channel transmission

An data transmission method is provided for transmitting analog data through an isolating device using a calibration input pulse and a data input pulse. The analog data may represent, for example, the desired dimming value for a flyback converter powering a solid state lighting system.. ... Dialog Semiconductor Gmbh

03/22/18 / #20180083636

Selection of multiple configuration settings using a single configuration terminal

A single configuration terminal of a device is used to configure multiple operating parameters of the device based on a resistor and a capacitor selectively connected to the configuration terminal. The device includes a detection circuit configured to monitor a voltage signal at the configuration terminal to determine multiple values in response to a regulated current source providing a current to the configuration terminal selectively connected to the resistor and the capacitor in parallel, and configure multiple operating parameters based on the determined values. ... Dialog Semiconductor Gmbh

03/22/18 / #20180083549

Power converters with adaptive output voltages

A switching power converter is provided that transitions between output voltage modes over a delay period using at least one of an adaptive resistor and an adaptive reference voltage circuit.. . ... Dialog Semiconductor Gmbh

03/22/18 / #20180083544

Multl-level power converter and related methods

A variable-level flyback power converter is configured to provide an accurate output voltage at various regulation levels. The variable-level flyback power converter may include a switch coupled to a secondary winding of a transformer, a diode coupled to a primary winding of the transformer, and a controller coupled to the switch. ... Dialog Semiconductor Gmbh

03/22/18 / #20180083538

Adaptive valley mode switching

An adaptive valley mode switching power converter is provided that switches on a power switch within valley periods of a resonant voltage oscillation for the power switch. Each valley period is determined with regard to a valley threshold voltage.. ... Dialog Semiconductor Gmbh

03/22/18 / #20180083524

Peak current servo

The proposed disclosure combines peak-mode monitoring with valley-mode control, in a buck switching converter, by means of a peak-current sampling circuit, not to turn the high side device off, but to control a slow loop, which in turn controls a variable offset incorporated into the loop control current. This helps the loop control current define the exact peak current, regardless of what other offsets, compensation ramp or peak-to-peak current ripple, are applied to the loop control current. ... Dialog Semiconductor Gmbh

03/22/18 / #20180081385

Switching power converter with zero current at startup

A switching power converter is provided with a power-on-reset (por) circuit that discharges essentially no current until a power supply voltage exceeds a por threshold voltage.. . ... Dialog Semiconductor Gmbh

03/22/18 / #20180081383

Overvoltage clamp in regulators

A regulator for providing a load current at a regulator output voltage to a load at an output of the regulator is described. The regulator has a differential input stage to provide a differential output voltage based on a reference voltage and based on the regulator output voltage. ... Dialog Semiconductor Gmbh

03/08/18 / #20180069468

Dynamic current limit circuit

A system is disclosed which provides a dynamic current limit circuit that accurately defines both the lower and the upper limits for the current limit. The circuit ensures both the lower and upper current limits are well-controlled. ... Dialog Semiconductor Gmbh

03/01/18 / #20180062530

Efficient power supply voltage regulation for synchronous rectifier controller

A flyback converter is provided with a synchronous rectifier (sr) controller including a pulse linear regulator (plr) charging path and an ldo charging path. The sr controller is configured to monitor the switching period and/or duty cycle of a power switch in the flyback converter to select between the plr and ldo charging paths.. ... Dialog Semiconductor Gmbh

03/01/18 / #20180062404

Electromagnetic interference blocking system

An apparatus and method for blocking electromagnetic interference, emi is presented. In particular, the present invention relates to a switched mode power supply provided with an electromagnetic interference protection circuit with low power dissipation. ... Dialog Semiconductor Gmbh

02/22/18 / #20180054863

Solid state lighting driver circuit with ballast compatibility

A solid state lighting driver circuit containing an input for connection with a ballast; an output for driving a light emitting element; and a switch is provided. The switch is selectively operable to transition between a first state providing a low impedance path for a ballast output and a second state where the ballast output drives the output. ... Dialog Semiconductor Gmbh

02/22/18 / #20180054124

Multiphase power converter

A multiphase power converter and a corresponding method is presented. The multiphase power converter contains a first and a second constituent switched-mode power converter. ... Dialog Semiconductor Gmbh

02/22/18 / #20180054056

System and method for controlling solid state lamps

A solid state driver circuit that is compatible with either a low frequency mains or magnetic ballast supply or a high frequency electronic ballast input is presented. An input detection circuit detects the frequency of the supply and selectively adjusts the drive circuit to act as a linear regulator when an electronic ballast is detected, or as a switched mode regulator when mains or a magnetic ballast is detected. ... Dialog Semiconductor Gmbh

02/01/18 / #20180034370

Combined high side and low side current sensing

A current sensing circuit is described. The current sensing circuit is for sensing a high side current through a high side switch and/or for sensing a low side current through a low side switch of a half bridge comprising the high side switch and the low side switch, which are arranged in series between a high side potential and a low side potential. ... Dialog Semiconductor Gmbh

01/25/18 / #20180026538

Nulling reverse recovery charge in dc/dc power converters

A switching mode power converter circuit and a method are presented. The circuit comprises a first transistor switch and a second transistor switch coupled in series between an input voltage level and ground. ... Dialog Semiconductor Gmbh

01/25/18 / #20180026526

Multi-staged buck converter with efficient low power operation

A system and method of increasing the efficiency in multi-stage power converters by providing an open loop charge pump stage which reacts in part based on information from a closed loop multi-phase buck converter stage.. . ... Dialog Semiconductor Gmbh

01/25/18 / #20180025965

Wfcqfn (very-very thin flip chip quad flat no lead) with embedded component on leadframe and method therefor

A quad flat no lead package is provided comprising at least one first integrated circuit die embedded in a recess in a die paddle of a metal leadframe and a second integrated circuit chip die attached to the at least one first integrated circuit die wherein the first and second integrated circuit dies are electrically connected to each other and wherein the second integrated circuit die is connected to leads of the leadframe through copper pillars.. . ... Dialog Semiconductor Gmbh

01/18/18 / #20180019587

Short circuit protection for data interface charging

A switching power converter is provided with an overvoltage protection circuit that softly switches on a power bus switch during a soft-start period responsive to a device connecting to a data cable for receiving power over a power bus coupled to the power bus switch.. . ... Dialog Semiconductor Gmbh

01/11/18 / #20180013300

Short circuit protection for data interface charging

A switching power converter is provided with an overvoltage protection circuit that monitors the differential data signal voltages in a data interface such as a usb data interface powering a load device to detect soft short conditions.. . ... Dialog Semiconductor Gmbh

01/04/18 / #20180006558

Avp combined with dac servo

An object of this disclosure is to implement a buck, boost, or other switching converter, with a circuit to supply a reference voltage and adaptive voltage positioning (avp), by means of a servo and programmable load regulation. The reference voltage is modified, achieving a high dc gain, using a servo to remove any dc offset at the output of the switching converter. ... Dialog Semiconductor Gmbh

12/28/17 / #20170373655

High frequency common mode rejection technique for large dynamic common mode signals

A system is disclosed which allows for canceling high frequency rail to rail common mode swing at pulse-width modulation (pwm) frequency for a class-d, h and g audio amplifier or a linear resonance actuator (lra) driver. This allows wide bandwidth current sensing without the need of external components, or large on-chip resistor-capacitor (rc) networks, facilitating integration of the sense resistor. ... Dialog Semiconductor Gmbh

12/28/17 / #20170373594

Hybrid buck

A system is disclosed which allows for a multiphase buck switching converter, where some phases operate in peak-mode current control, and some phases operate in valley-mode current control, simultaneously with the peak-mode phases. The peak-mode phases of the switching converter operate at lower frequency, and with a higher value inductor than the valley mode phases. ... Dialog Semiconductor Gmbh

12/28/17 / #20170371840

Digital sample rate conversion

Methods, structures and computer program products for digital sample rate conversion are presented. An input digital sample with a first frequency is converted to an output sample with a second frequency. ... Dialog Semiconductor Gmbh

12/14/17 / #20170358984

Fast-transient switching converter with type iii compensation

A circuit configured for improving the large signal response of a control stage circuit of a switch mode dc/dc power converter by increasing the differential input range of an error amplifier by segmenting and adding an offset to the error amplifier input and output. When a transient is detected, the feedback voltage is offset in multiple segments by multiple offset voltage sources to prevent saturation of the control stage circuit. ... Dialog Semiconductor Gmbh

12/07/17 / #20170353178

Current-controlled active diode

This application relates to an active diode circuit for letting current pass in one direction and blocking current in the opposite direction. The active diode circuit comprises a transistor, a control voltage generation circuit for generating a control voltage that is supplied to a control terminal of the transistor, and a sensing circuit for detecting a quantity indicative of a current flowing through the transistor. ... Dialog Semiconductor Gmbh

11/30/17 / #20170346411

Auxiliary load application for increasing data rate of messages or for increasing the response speed to transmitted messages in a flyback converter

A system and method of controlling the data transfer rate of a switching power converter when the switching frequency is below a desired level by using an auxiliary load to at least maintain output regulation.. . ... Dialog Semiconductor Gmbh

11/30/17 / #20170346329

Switching power converter for direct battery charging

A direct charging method is provided that alerts a mobile device when a switching power converter is operating in a constant-current mode to alert the mobile device of an output current without the use of a secondary-side current sense resistor.. . ... Dialog Semiconductor Gmbh

11/30/17 / #20170346313

Short circuit and soft short protection for data interface charging

A switching power converter is provided that communicates with a mobile device to receive a value of a load detection current. The switching power converter adjusts the cycling of a power switch until a constant current mode of operation is entered with a known output current driving the mobile device. ... Dialog Semiconductor Gmbh

11/16/17 / #20170331466

Low voltage switching gate driver under a high voltage rail

A switching gate driver and method of operating the gate driver is described. The gate driver includes a first voltage source, and a clamping voltage source configured to have a voltage that is less than that of the first voltage source. ... Dialog Semiconductor Gmbh

11/16/17 / #20170331365

Circuit and method of a switching converter with adaptive pulse insertion

A circuit and method for a switching converter that modifies the clock frequency when the panic comparator is activated is proposed. This solution for a switching converter is achieved by increases in the switching frequency in response to an undershoot condition. ... Dialog Semiconductor Gmbh

11/09/17 / #20170324332

Multiphase switching converter

A multiphase switching converter with a plurality of phase circuits coupled with a common output node is presented. Each phase circuit has a drive signal generator to generate a separate drive signal for a switching element of the respective phase based on a feedback signal from the common output node. ... Dialog Semiconductor Gmbh

11/09/17 / #20170322573

Voltage regulators with current reduction mode

A voltage regulator provides an output current at an output voltage, based on an input voltage. The voltage regulator has a pass transistor for deriving the output current. ... Dialog Semiconductor Gmbh

10/12/17 / #20170294841

Switching power converter with efficient vcc charging

A switching power converter controller is provided that includes a vcc charging switch transistor coupled between a drain of a power switch transistor and a storage capacitor.. . ... Dialog Semiconductor Gmbh

10/12/17 / #20170294839

Synchronous rectifier for buck converter without the need for a comparator

A switch mode power supply, which functions in a continuous current mode and a discontinuous mode employing a zero crossing control circuit for determining a polarity of an inductor current and from the polarity of the inductor current, controlling an operational state of a switching section of the switch mode power supply such that the inductor current becomes approximately zero amperes at the end of each demagnetization phase of operation.. . ... Dialog Semiconductor Gmbh

10/05/17 / #20170290115

Arbitrary pulse alignment to reduce led flicker

An arbitrary alignment is provided for a series of pulses controlling a switch that in turn controls a current in an led. Each pulse is generated according to a target time responsive to a reference time in a corresponding cycle of a synchronization clock. ... Dialog Semiconductor Gmbh

10/05/17 / #20170288548

Negative current clocking

A switching mode power supply (smps) configured for clearing an overvoltage condition. The overvoltage is determined by detecting that the output voltage has exceeded the input voltage by a limited amount. ... Dialog Semiconductor Gmbh

09/28/17 / #20170277212

Circuit and method for reducing analog buck current control loop sensitivity to supply path resistance

This application relates to a power converter circuit for converting a supply voltage received at an input node and providing, at an output node, a current at the converted supply voltage. The power converter circuit contains a dc-dc converter circuit for generating the current at the output node under control of a control signal, a current sensing circuit for sensing a current indicative of a current at the input node, a voltage adjustment circuit for sensing a voltage indicative of the supply voltage and generating an adjusted voltage on the basis of the sensed voltage and the sensed current, and an error amplifier stage for generating the control signal on the basis of the adjusted voltage and a reference voltage. ... Dialog Semiconductor Gmbh

09/21/17 / #20170272906

Determining the distance between devices in a wireless data exchange protocol

A method of determining a distance between a first and a second device in a wireless data exchange protocol is presented. The method includes sending an advertising channel protocol data unit (pdu) from the first device; receiving the advertising channel pdu at the second device and responsively sending a scan request scanning pdu from the second device to the first device; receiving the scan request scanning pdu at the first device and responsively sending a scan response scanning pdu from the first device to the second device; calculating a time of flight (tof) for at least one of the sent pdus; and determining the distance between the first and second devices using the calculated tof.. ... Dialog Semiconductor Gmbh

09/21/17 / #20170272405

Security improvements in a wireless data exchange protocol

A security solution for bluetooth low energy (ble) or equivalent wireless data exchange protocols involves authentication of a peripheral device by a central device using the advertising channel is presented. A method of authenticating a peripheral device in a wireless data exchange has a peripheral device sending an advertising channel protocol data unit (pdu), a central device receiving the advertising channel pdu and the central device sending a scan request scanning pdu to the peripheral device. ... Dialog Semiconductor Gmbh

09/21/17 / #20170271990

Switched power converter with multiple outputs

A switched mode power converter comprising a main inductor and a half bridge for providing an inductor current is described. The power converter comprises a first output power switch for directing the inductor current to a first output port and bypass circuitry for making at least part of the inductor current available for controlling the switching state of at least one of the power switches. ... Dialog Semiconductor Gmbh

09/21/17 / #20170269619

Charge injection for ultra-fast voltage control in voltage regulators

This application relates to a circuit for generating an output voltage and regulating the output voltage to a target voltage. The circuit includes a switchable voltage divider circuit configured to generate a feedback voltage that is a variable fraction of the output voltage, an error amplifier stage configured to generate a control voltage on the basis of a reference voltage and the variable fraction of the output voltage, a buffer stage configured to generate the output voltage on the basis of the control voltage, and a charge injection circuit configured to inject charge at an intermediate node between the error amplifier stage and the buffer stage to thereby modify the control voltage generated by the error amplifier stage. ... Dialog Semiconductor Gmbh

09/14/17 / #20170264190

Type iii switching converter error amplifier with fast transient response behavior

A transient response circuit provides faster transient response time of an electronic device so that less overshoot or undershoot of an output signal of the electronic device occurs when a large load and/or line transient signal is present at an input and/or output terminal of the electronic device. The transient response circuit has a transient detection circuit and an assist circuit. ... Dialog Semiconductor Gmbh

08/31/17 / #20170251532

Multi-mode control for solid state lighting

A multi-mode control scheme for an led lamp system uses the detected firing angle of an ac input voltage waveform to select from multiple regulation modes. In operation, a current controller compares the detected firing angle to one or more specified thresholds and selects the appropriate regulation scheme based on the comparison result. ... Dialog Semiconductor Gmbh

08/31/17 / #20170250688

Circuit and method of a level shift network with increased flexibility

A circuit and method for a level shift circuit with increased flexibility is described. The level shifting circuit includes an nmos pair, a pmos pair cross-coupled to the nmos pair, an auxiliary transient response network parallel to the pmos pair configured to provide a parallel current path, and a delay network configured to provide a delay to the auxiliary transient response network. ... Dialog Semiconductor Gmbh

08/31/17 / #20170250612

Isolated switching power converter with data communication between primary and secondary sides

An isolated switching power converter is provided wherein a secondary side is valley mode switched to transmit data to a primary side. This provides secondary side regulation without the need for an optocoupler. ... Dialog Semiconductor Gmbh

08/31/17 / #20170248641

Usb data pin impedance detection

A device for determining impedance at a data pin of a communication interface. In one embodiment, the device includes a current source configured to selectively inject a test current to the data pin. ... Dialog Semiconductor Gmbh

08/10/17 / #20170231050

Powering internal components of led lamps using dissipative sources

An led lamp comprises one or more leds and an led driver receiving an input signal from a dimmer switch indicative of an amount of dimming for the led lamp. The led driver controls regulated current through the one or more leds based on the input signal such that an output light intensity of the one or more leds substantially corresponds to the amount of dimming for the led lamp. ... Dialog Semiconductor Gmbh

08/10/17 / #20170229960

Ringing suppression method and apparatus for power converters

A method of controlling a power converter for converting a dc input voltage to a dc output voltage is presented the power converter comprises an inductor, one or more switching elements for energizing and de-energizing the inductor, a drive circuit for controlling switching operation of the one or more switching elements in accordance with a control signal, and a feedback circuit for generating the control signal on the basis of a first feedback quantity indicative of an actual output voltage of the power converter and in accordance with one or more circuit parameters of the feedback circuit, the method comprising: detecting an open loop condition of feedback control by the feedback circuit; and modifying at least one of the circuit parameters of the feedback circuit in such a manner that a time until the feedback control by the feedback circuit returns to the closed loop condition is reduced.. . ... Dialog Semiconductor Gmbh

08/10/17 / #20170227587

Method and apparatus for powering an electronic device

A method of monitoring a process of powering an electronic device through a cable assembly is proposed. The cable assembly comprises a cable which is connected between a power supply and the electronic device. ... Dialog Semiconductor Gmbh

08/10/17 / #20170227576

Calibration of vectors in a measurement system

A method of data calibration, and in particular sensor calibration, which involves gathering an initial first estimate and then binning the data samples, so that calibration can be performed without the need for a known reference stimulus. The present disclosure relates to calibration of vectors in a measurement system, and in particular to calibration of a correction function for systematic errors in successive data vectors. ... Dialog Semiconductor Gmbh

07/27/17 / #20170214329

Smart grouping control method for power converter switching noise management

A switching power converter is provided that cycles a power switch during a group pulse mode of operation to produce a train of pulses within a group period responsive to a control voltage being within a group mode control voltage range.. . ... Dialog Semiconductor Gmbh

07/27/17 / #20170214320

Frequency hopping for reducing switching power converter noise

A switching power converter is configured to control switching noise by implementing a plurality of pulse width modulation modes of operation. The peak current in each pulse width modulation mode of operation is controlled so that an output power for the switching power converter is continuous with regard to transitions between the pulse width modulation modes.. ... Dialog Semiconductor Gmbh

07/27/17 / #20170212632

Switching power converter with history-based valley mode switching

History-based valley mode switching techniques and systems are provided to reduce the frequency spreading of switching noise in a switching power converter.. . ... Dialog Semiconductor Gmbh

07/27/17 / #20170212542

Adaptive gain control for voltage regulators

A voltage regulator which provides an output current at an output voltage at an output node, based on an input voltage at an input node is described. The voltage regulator has an output amplification stage comprising a pass transistor for deriving the output current at the output node from the input voltage at the input node; and comprising a driver stage to set a gate voltage at a gate of the pass transistor based on a drive voltage. ... Dialog Semiconductor Gmbh

07/20/17 / #20170207710

Secondary-side dynamic load detection and communication device

A switching power converter provides regulated voltage to a load. The switching power converter comprises a transformer including a primary winding coupled to an input voltage and a secondary winding coupled to an output of the switching power converter. ... Dialog Semiconductor Gmbh

07/20/17 / #20170205841

Bypass mode for voltage regulators

A voltage regulator which provides at an output node a load current at an output voltage is described. The voltage regulator comprises a pass transistor for providing the load current at the output node from an input node, and a driver stage configured to set the gate voltage of the pass transistor based on a drive current. ... Dialog Semiconductor Gmbh

07/13/17 / #20170199696

Initialization of memory in a computer system

A computer system, especially but not exclusively an embedded system, is provided with a cpu and an external flash or other memory which is used for storing code to be executed by the cpu in operation of the system. The system can be initialized without requiring a secondary boot sequence which means it can be used in preference to embedded or serial flash solutions. ... Dialog Semiconductor Gmbh

07/06/17 / #20170196062

Digital dimming solution for led applications including a phase-cut dimmer

A system and method for controlling a light output from a led-based lighting solution is provided that may receive phase-cut ac signals and/or external digital control signals. The invention is capable of receiving both a phase-cut ac signal and an external digital control signal simultaneously and providing a desired light output from a led-based lighting solution. ... Dialog Semiconductor Gmbh

06/29/17 / #20170187200

Charger communication by load modulation

A method and circuit that allows a charger port to source a slow charging voltage and current for one type of portable device and an adjustable voltage and current for a second type of portable device. The second type of portable device communicates with the charger port to establish a voltage and current that the portable device is capable of accepting. ... Dialog Semiconductor Gmbh

06/22/17 / #20170179826

Switchless capacitive high voltage sensing

A circuit and a method for sensing a current flowing through a pass device of a voltage converter. The pass device is switchable between a conducting state and a non-conducting state. ... Dialog Semiconductor Gmbh

06/22/17 / #20170179822

Multi-threshold panic comparators for multi-phase buck converter phase shedding control

A control circuit included within a multi-phase switched-mode converter is configured for adjusting operational signals for adding power stages of the multi-phase switched-mode converter to dynamically respond to transient changes in load current for minimizing undershoot while avoiding overshoot of an output voltage of the multi-phase switched-mode converter. The control circuit has panic comparators configured such that each panic comparator has an input terminal connected to receive the output voltage for comparison with one of a plurality of reference voltages. ... Dialog Semiconductor Gmbh

06/22/17 / #20170179758

Power saving device

A circuit for controlling a power supply is disclosed. The circuit has a storage element for storing energy harvested from energy sources, a backup battery, and a comparator to compare a voltage of the storage element to a reference voltage. ... Dialog Semiconductor Gmbh

06/22/17 / #20170177014

Voltage regulator with impedance compensation

A regulator configured to provide at an output node a load current at an output voltage is described. The regulator comprises a pass transistor for providing the load current at the output node. ... Dialog Semiconductor Gmbh

06/08/17 / #20170163157

High efficiency multi-level buck-boost converter

A power converter for converting an input voltage at an input port into an output voltage at an output port of the power converter is described. The power converter comprises an inductor having a first inductor port and a second inductor port, wherein the second inductor port is coupled to the output port. ... Dialog Semiconductor Gmbh

06/08/17 / #20170160758

Output transistor temperature dependency matched leakage current compensation for ldo regulators

Circuits and methods to compensate leakage current of a ldo regulator are disclosed. The compensation is achieved by a temperature dependent sink current generation, matched with its temperature dependency characteristic to the ldo regulator output transistor leakage, which has a nearly zero current consumption increase of about 50 na at room temperature and starts sink current at temperatures about above 85 to 125 degrees celsius, which is corresponding to a range of temperature wherein leakage currents come into account.. ... Dialog Semiconductor Gmbh

06/01/17 / #20170156184

Power converter controller

This application relates to a controller for a power converter to convert electrical power at an input voltage into electrical power at an output voltage and a method of operating such controller. The controller for controlling a power converter has an input port to receive a voltage representative of the input voltage; an input voltage measuring unit to sample a measuring voltage and to determine a measurement value that is representative of the input voltage; a switch; and a diode connectable with a storage unit to provide a supply voltage for the controller during operation of the controller. ... Dialog Semiconductor Gmbh

06/01/17 / #20170155324

Buck-boost converter

A buck-boost converter and a method are presented. The buck-boost converter comprises an inductor, a buck converter, and a boost converter. ... Dialog Semiconductor Gmbh

06/01/17 / #20170153990

Integrated circuit with a serial interface

An integrated circuit coupled to an external serial bus is presented. A method for prefetching data from an external serial bus is presented. ... Dialog Semiconductor Gmbh

06/01/17 / #20170153680

Power management system and method

A distributed power management system comprising at least two power management integrated circuits pmics is presented. A master power management integrated circuit pmic supplies power to a subsystem of an electronic device based on a current state of a master finite state machine fsm executed by the master pmic. ... Dialog Semiconductor Gmbh

05/18/17 / #20170141676

Circuit and method for high-accuracy current sensing

A circuit for providing a current flowing from a supply voltage into an electric load is presented. The circuit comprises a first circuit branch connected between the supply voltage and an output node connected to the electric load, wherein the first circuit branch comprises a first transistor device, a second circuit branch connected between the supply voltage and a predetermined voltage level, wherein the second circuit branch comprises a series connection of a second transistor device that is a scaled replica of the first transistor device and a current source. ... Dialog Semiconductor Gmbh

05/11/17 / #20170133765

Miniature antenna

A split open loop resonator antenna comprising a first electrically connected open loop structure which comprises a first slit, a second electrically connected open loop structure containing a second slit. The first electrically connected open loop structure contains a first main structure being a portion of a first open loop and a first additional structure being another portion of the first open loop. ... Dialog Semiconductor Gmbh

05/11/17 / #20170131736

Apparatus and method for high voltage bandgap type reference circuit with flexible output setting

An apparatus and method for a voltage reference circuit with flexible and adjustable voltage settings. A voltage reference circuit, comprising a ptat current generator configured to provide current through a first resistor, a ctat current generator configured to provide a ctat current through a second resistor, a ptat-ctat adder circuit configured to sum the ptat current, and the ctat current, wherein said sum of the ptat and ctat current through a third resistor is configured to provide an output voltage greater than a silicon bandgap voltage.. ... Dialog Semiconductor Gmbh

05/04/17 / #20170127180

Method for equalization of microphone sensitivities

The proposed invention implements real-time sensitivity estimation, using a microphone path, and variable gain. When a multi-microphone system is configured to perform in its target use case, and the microphone gain is estimated, and the system output is corrected for performance degradation, sensitivity compensation is performed. ... Dialog Semiconductor Gmbh

05/04/17 / #20170126146

Switched power converter with configurable parallel / serial inductor arrangement

A multi-phase power converter is described, which is configured to convert power between an input port and an output port. The multi-phase power converter comprises a basic switched converter comprising a basic inductor, wherein the basic switched converter is configured to convert power between the input port and the output port. ... Dialog Semiconductor Gmbh

05/04/17 / #20170126026

Battery charging regulator

A battery charging regulator for use with a charger. The regulator comprises a switch element coupled to a control-circuit and to an adjuster-circuit. ... Dialog Semiconductor Gmbh

05/04/17 / #20170123443

Sink/source output stage with operating point current control circuit for fast transient loading

A voltage regulator is described. It comprises an amplification stage to control a voltage level of a first gain node and of a second gain node in response to an input voltage, to activate a first and a second output stage, respectively. ... Dialog Semiconductor Gmbh

05/04/17 / #20170122987

Highly accurate current measurement

The present document relates to the measurement of the current through a transistor. In particular, the present document relates to a circuit arrangement which allows an accurate measurement of the current through a power transistor. ... Dialog Semiconductor Gmbh

04/20/17 / #20170110961

Dc-to-dc output current sensing

Method and circuits enable measuring output current in dc/dc converters operating in pulse frequency modulation (pfm) mode and in pulse width modulation (pwm) mode. The method is applicable to dc/dc converters using an inductor at the output. ... Dialog Semiconductor Gmbh

04/06/17 / #20170098992

Switched-mode power converter with a current limit circuit

A switched-mode power converter with current limit circuits for limiting the input current into the power converter and/or the output current is presented. The power converter contains a feedback loop for controlling the output voltage of the converter. ... Dialog Semiconductor Gmbh

03/30/17 / #20170093350

Multi-stage amplifier with improved operating efficiency

A multi-stage amplifier, comprising a first amplifier stage is presented. The output of the first amplifier stage is coupled to a first terminal of a capacitor having a controllable capacitance. ... Dialog Semiconductor Gmbh

03/30/17 / #20170093295

Adaptive cable drop compensation

A power supply control system delivers regulated power to a load via a delivery cable. The power supply control system includes a power stage operable to deliver power to the load at a first regulated voltage level and a second regulated voltage level. ... Dialog Semiconductor Gmbh

03/30/17 / #20170093278

Circuit and method for maximum duty cycle limitation in step up converters

An adaptive duty cycle limiting circuit is used with a switching dc-to-dc converter for preventing the duty cycle entering a region of operation having negative gain. The adaptive duty cycle limiting circuit includes a duty cycle ramp signal generator, a voltage source for providing a voltage having a fractional value of an input voltage source, and a comparator that compares the duty cycle ramp signal with the fractional value of the input voltage source. ... Dialog Semiconductor Gmbh

03/30/17 / #20170090495

Linear regulator with improved power supply rejection ratio

A linear regulator with a pass device having a first terminal, a second terminal and a drive terminal is presented. The first terminal of the pass device is coupled with the supply voltage of the linear regulator. ... Dialog Semiconductor Gmbh

03/16/17 / #20170074689

Sensor fusion method for determining orientation of an object

A sensor fusion method of calculating an orientation of an object by combining readings from different types of orientation sensors to estimate the orientation of an object. An analytical solution is provided which is computationally efficient and can be implemented in fixed or floating point architecture. ... Dialog Semiconductor Gmbh

03/09/17 / #20170070147

Voltage converters with asymmetric gate voltages

A highly efficient voltage conversion circuit device with both asymmetric and symmetric gate voltages is disclosed, to obtain high efficiency for low or medium load currents through the asymmetric gate voltage control and high efficiency for high load currents through the symmetric gate voltage control. The device includes an intermediate voltage generation circuit unit, gate voltage driver circuits connected to the intermediate voltage generation circuit unit, and multi-phase switches connected to the asymmetric gate voltage driver circuits, etc. ... Dialog Semiconductor Gmbh

03/09/17 / #20170070146

Dac servo

A servo block in a buck, boost, or switching converter allows a positive offset to be applied to the dac voltage. In a typical switching converter application, the load will have a positive current, sourced from the switching converter to ground through the load. ... Dialog Semiconductor Gmbh

03/09/17 / #20170070145

Electromagnetic interference (emi) for pulse frequency modulation (pfm) mode of a switching regulator

A circuit and method providing switching regulation configured to provide a pulse frequency modulation (pfm) mode of operation with reduced electromagnetic interference (emi) comprising an output stage configured to provide switching comprising a first and second transistor, a sense circuit configured to provide output current information sensing from an output stage and a current limit reference, a first digital-to-analog converter (dac) configured to provide signal to the current limit reference, an adder function configured to provide a signal to the first digital-to-analog converter (dac), and a linear shift feedback register (lsfr) configured to provide a signal to an adder function followed by the first digital-to-analog converter (dac), and the lsfr receives a clock signal from said output stage.. . ... Dialog Semiconductor Gmbh

03/09/17 / #20170070139

Low power dc-dc converter

A dc-dc converter comprises an oscillator and a charge pump, to ensure operation at low voltage. The oscillator comprises one or more source degenerated transistors comprising a degeneration impedance located between a source of the transistor and a ground connection. ... Dialog Semiconductor Gmbh

03/09/17 / #20170068264

Overvoltage clamp in regulators

A regulator for providing a load current at a regulator output voltage to a load at an output of the regulator is described. The regulator has a differential input stage to provide a differential output voltage based on a reference voltage and based on the regulator output voltage. ... Dialog Semiconductor Gmbh

03/02/17 / #20170063246

Adaptive synchronous rectifier control

A switching power converter may include a power switch coupled to a primary winding of a transformer, and a primary controller configured to turn on and off the power switch, a synchronous rectifier switch coupled to a secondary winding of a transformer, and a synchronous rectifier controller configured to turn on and off the synchronous rectifier switch. The synchronous rectifier controller may monitor a voltage across the synchronous rectifier switch. ... Dialog Semiconductor Gmbh

03/02/17 / #20170063228

Versatile current sensor for switching regulator

A preferred implementation of a switching converter with a versatile current sensor is achieved, by adding an integrator for instant sense current in the switching converter. The integrator calculates the average current of the switching converter and includes both positive and negative current sensing. ... Dialog Semiconductor Gmbh

03/02/17 / #20170063121

Digital temperature control for power supply devices

A digital temperature control method for power supply ics is disclosed. The method acts on one or more system variables. ... Dialog Semiconductor Gmbh

03/02/17 / #20170062027

Stacked clock-generation circuit

An electronic circuit is disclosed for dividing the frequency of a periodic signal, wherein at least one of the memory elements is arranged with its output terminal connected to the input terminal of another memory element wherein the electronic circuit is configured to generate an output signal having a smaller fundamental frequency than the clock signal at at least one of the output terminals. Each memory element is configured to change and hold a voltage at the output terminal based on a voltage at the input terminal at times controlled by a clock signal received at the clock terminal. ... Dialog Semiconductor Gmbh

03/02/17 / #20170060157

Linear regulator with improved stability

A linear regulator is presented. It comprises a first amplifier stage, one of the inputs being coupled with the output of the linear regulator. ... Dialog Semiconductor Gmbh

03/02/17 / #20170060154

Multi-phase switching converter with phase shedding

A multi-phase switched-mode converter has a control circuit configured to receive a shed threshold signal indicating that the total output current has fallen below a total current threshold level. The control circuit further includes slave phase shedding switches that have a common switching pole connected to a current share amplifier of each slave power stage, a first select pole is connected to a phase target current level, and a second select pole is connected to a phase zero target current level. ... Dialog Semiconductor Gmbh

03/02/17 / #20170059629

Offset neutral compensation for high-accuracy current sensing

A circuit and a method for sensing a current flowing from a supply voltage into an electric load are presented. The current sensing circuit comprises a first circuit branch connected between the supply voltage and the electric load, a second circuit branch connected between the supply voltage and ground, and an equalization circuit for equalizing a first voltage drop across a first resistive element and a second voltage drop across a second resistive element and for generating an indication of a current flowing through the second circuit branch.. ... Dialog Semiconductor Gmbh

03/02/17 / #20170055907

Wearable biometric device and method of performing biometric measurements

A wearable biometric device includes a biometric sensor system adapted to measure a predetermined physiological property of a user's body at two or more different locations at the body surface and to provide for each such location an associated primary signal indicative of said measured physiological property. The device also includes a detector system adapted to detect a level of coupling of the biometric sensor system with the body at each of the locations and to provide for each of the locations an associated secondary signal indicative of said detected level of coupling and also includes a signal processing unit adapted to generate an output signal indicative of said physiological property as a function of the primary and secondary signals.. ... Dialog Semiconductor Gmbh

02/16/17 / #20170047849

Mosfet driver with reduced power consumption

A power supply can be operated in a low power mode by adjusting the pulses provided to a power supply switch until a pulse resulting in a reduced amount of power that exceeds a minimum power threshold required by a load coupled to the power supply switch is identified. For each successive switching cycle, a pulse causing a lower power to be provided to the load is produced. ... Dialog Semiconductor Gmbh

02/16/17 / #20170047839

Switched capacitors with inverted break-before-make without external filtering load capacitor

A charge pump circuit using more than one parallel source is described. A flying capacitor of the charge pump maintains a break-before-make time with respect to the switches within a side of the charge pump. ... Dialog Semiconductor Gmbh

02/09/17 / #20170040309

Chip on chip attach (passive ipd and pmic) flip chip bga using new cavity bga substrate

An integrated passive device and power management integrated circuit are directly connected, active surface to active surface, resulting in a pyramid die stack. The die stack is flip-chip attached to a laminate substrate having a cavity drilled therein wherein the smaller die fits into the cavity. ... Dialog Semiconductor Gmbh

02/09/17 / #20170039056

Memory patching circuit, system and method

A patching system and a patching circuit provide a type of patching entry which can replace several sequential memory positions with hardcoded and dynamically configured assembly instructions, thus injecting a small piece of code. The operation of the injected code can be for any purpose, but as an example may be used to seamlessly redirect the execution flow of a processing unit.. ... Dialog Semiconductor Gmbh

01/26/17 / #20170027032

Arbitrary pulse alignment to reduce led flicker

An arbitrary alignment is provided for a series of pulses controlling a switch that in turn controls a current in an led. Each pulse is generated according to a target time responsive to a reference time in a corresponding cycle of a synchronization clock. ... Dialog Semiconductor Gmbh

01/26/17 / #20170025951

Combined high side and low side current sensing

A current sensing circuit is described. The current sensing circuit is for sensing a high side current through a high side switch and/or for sensing a low side current through a low side switch of a half bridge comprising the high side switch and the low side switch, which are arranged in series between a high side potential and a low side potential. ... Dialog Semiconductor Gmbh

01/12/17 / #20170012541

High power factor power converters with adaptive output voltage limits for fast dynamic load response

A switching power converter is provided that switches between low-bandwidth pi control and a high-speed control of an output voltage responsive to comparing the output voltage to an upper output voltage limit and to a lower output voltage limit. The switching power converter adapts the upper and lower voltage limits responsive to a load demand.. ... Dialog Semiconductor Gmbh

01/12/17 / #20170012527

Output current monitor circuit for switching regulator

A circuit and method for providing an improved current monitoring circuit for a switching regulator. A circuit providing switching regulation with an improved current monitor, comprising a pulse width modulation (pwm) controller configured to provide p- and n-drive signals, an output stage connected to said pwm controller and configured to provide switching, comprising a high-side and low-side transistor, driven by said p- and n-drive signals, respectively, a sense circuit configured to provide output current sensing from the output stage during a sampling period when the n-drive signal is active, and a sampling timing generator configured to provide a an n-sampling signal, nsample, to the sense circuit, wherein a start of the n-sampling signal is delayed by a first delay after the sampling period and the n-sampling signal is ended prior to an end of the sampling period by a second delay.. ... Dialog Semiconductor Gmbh

01/12/17 / #20170012522

Method for synchronizing power charge-pump with system clock

The proposed power management integrated circuit(pmic) features the option to synchronize the charge-pump of a pmic with the system clock, and then to swap and self-oscillate and skip pulses, when the digital controls of the pmic send a first order to the charge-pump. The clock control circuitry of the pmic also features the option for the charge-pump to then swap and use the system clock again, when the digital controls of the pmic send a second order to the charge-pump. ... Dialog Semiconductor Gmbh

01/12/17 / #20170010316

Mos transistor saturation region detector

This application relates to a circuit for determining whether a first transistor device is in a predetermined operation mode. The circuit comprises comprising: a second transistor device, wherein control terminals of the first and second transistor devices are connected, and one of input and output terminals of the first transistor device is connected to the other one of input and output terminals of the second transistor device, a buffer amplifier connected between the one of input and output terminals of the first transistor device and the other one of input and output terminals of the second transistor device, and circuitry for determining whether the first transistor device is in the predetermined operation mode based on an indication of a current flowing through the second transistor device. ... Dialog Semiconductor Gmbh

01/05/17 / #20170005576

High efficiency switching boost converter with reduced inductor current ripple

. . A voltage or current regulated power converter is presented. The power converter is configured to derive electrical power at an output voltage vout at an output of the power converter from electrical power at an input voltage vin at an input of the power converter, wherein the output voltage vout is greater than or equal to the input voltage vin. ... Dialog Semiconductor Gmbh

01/05/17 / #20170005503

Battery charging system with a regulation loop

A charging system for a battery of an electronic device is described. The charging system comprises an adapter configured to derive a transfer current at a transfer voltage from a power source. ... Dialog Semiconductor Gmbh








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