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Dialog Semiconductor Gmbh patents (2018 archive)


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


Pwm controlled loop with anti-windup protection

A system to regulate an output voltage based on a reference voltage is described. The system has an error amplifier to determine an error voltage by cumulating a deviation of a feedback voltage from the reference voltage, wherein the feedback voltage is indicative of the output voltage. ... Dialog Semiconductor Gmbh

Auxiliary winding ground fault detection for isolated dc/dc converter

A flyback converter is provided with a controller that is configured to analyze the reflected feedback voltage waveforms to determine the presence of a ground connection fault for the auxiliary winding.. . ... Dialog Semiconductor Gmbh

Buck-boost converter with small disturbance at mode transitions

The disclosure describes decreasing the overshoot and undershoots during the mode transitions of a buck-boost switching converter, without causing mode bounces. This is achieved by a main compensation capacitor of an error amplifier being charged or discharged, so that the output voltage level is shifted close to the target value. ... Dialog Semiconductor Gmbh

Applying alternate modes of usb type-c for fast charging systems

A system for charging a battery of an electronic device is presented. The system uses a power adaptor, with usb interfaces in the electronic device and in the power adaptor. ... Dialog Semiconductor Gmbh

Voltage regulator with improved driver stage

A voltage regulator to provide a load current at an output node is presented. The voltage regulator has a pass transistor for providing the load current at the output node from an input node. ... Dialog Semiconductor Gmbh

Adaptive control method for generating non overlapping time in output devices

The disclosure describes an adaptive technique for generating minimum dead time in a dc-dc switching power converter, while ensuring no short circuit losses occur, resulting in efficiency improvement of the switching converter. In addition, this adaptive scheme makes sure that even the ambient conditions of the switching converter give the best decision at the on/off timings of the switches. ... Dialog Semiconductor Gmbh

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

07/19/18 / #20180205318

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

07/19/18 / #20180205312

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

07/19/18 / #20180205310

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

07/19/18 / #20180205254

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

07/19/18 / #20180203047

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

07/12/18 / #20180198681

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








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