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Dialog Semiconductor Inc patents (2015 archive)


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

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


12/31/15 / #20150382429

Led mains voltage measurement using a current mirror

Measurement circuits which are configured to measure wide ranges of the input voltage using a sensed input voltage of the driver circuits for solid state lighting (ssl) devices are presented. The measurement circuit comprises a first resistor which is coupled at a first side to the input voltage. ... Dialog Semiconductor Inc

12/31/15 / #20150378379

Voltage regulator output overvoltage compensation

Multi-stage amplifiers which provide a constant output voltage subject to load transients are presented. The amplifier has a pass device to source a load current at an output voltage. ... Dialog Semiconductor Inc

12/31/15 / #20150378377

Robust sink / source output stage and control circuit

Multi-stage amplifiers, such as linear regulators, configured to provide a constant output voltage subject to load transients, are described. The multi-stage amplifier comprises a first amplification stage which activates or deactivates a first output stage in response to an input voltage at an input node. ... Dialog Semiconductor Inc

12/31/15 / #20150377981

Novel on-chip test technique for low drop-out regulators

A circuit and method is described for automatically testing multiple ldo regulator circuits on an integrated circuit chip independent of an ate. Each ldo regulator is tested for voltage at a specified current output capability, wherein the output driver transistor is formed by at least two pass transistors, which are each tested for voltage output at a particular current capability. ... Dialog Semiconductor Inc

12/10/15 / #20150357914

Method for a current mode buck-boost converter

A current mode control buck-boost converter with improved performance utilizes separate buck and boost pulses. The buck-boost converter utilizes a buck/boost decision method with continuous control voltage for buck and boost mode, therefore eliminating transients in the control loop between operation modes and preventing voltage overshoots. ... Dialog Semiconductor Inc

12/10/15 / #20150355653

Linear voltage regulator utilizing a large range of bypass-capacitance

Amplifiers, notably multi-stage amplifiers, such as linear regulators (e.g. Low-dropout regulators) configured to provide a constant output voltage subject to load transients are presented. ... Dialog Semiconductor Inc

12/10/15 / #20150355242

Output current monitoring circuit

A current monitoring circuit capable of being integrated onto an integrated circuit chip with the current source to be monitored, wherein the monitored current is digitized to be transmitted within and external to the host integrated circuit chip. The current monitoring circuit was originally conceived to monitor output current of a buck switching regulator but can be used in other applications. ... Dialog Semiconductor Inc

12/03/15 / #20150349993

Circuits and methods for decoding amplitude modulated data signals from large amplitude sine wave carrier

A digital load side transmission lighting control apparatus has at one least control gear for controlling at least one lighting source. The control gear includes a period timer to establish an inter-transition time period between each transition within each data packet frame. ... Dialog Semiconductor Inc

12/03/15 / #20150346750

Current sink stage for ldo

An ldo circuit with a current sink stage reduces significantly overshooting of the output voltage due to sudden changes of output current. The activation of the current sink stage is independent of the overshoot percentage of the regulated output voltage. ... Dialog Semiconductor Inc

11/26/15 / #20150340890

Power supply with fast discharging for configurable output voltage

A universal serial bus (usb) charger provides power to a client device. A usb connector interfaces with a client device and receives a request for the output voltage of the usb charger to be at a specific value. ... Dialog Semiconductor Inc

11/19/15 / #20150333638

Configurable power controller with combination input

Embodiments described herein describe a power supply configured to provide power to an output load via a power supply transformer. The power supply includes a controller configured to operate in a configuration state and an operating state. ... Dialog Semiconductor Inc

11/05/15 / #20150318785

Method and apparatus for an adaptive threshold of a zero crossing comparator based on the current in the parasitic bipolar transistors

A buck converter device with a zero-cross comparator with an adaptive threshold. The buck converter comprises of a control block that controls a first p-channel mosfet switch, and a second n-channel mosfet switch. ... Dialog Semiconductor Inc

11/05/15 / #20150317152

Patching of program code executed from one time programmable memory

Patching of program code stored in and directly executed from an otp is supported by a patch mechanism that does not rely on additional hardware, external intervention or ram. The features of the disclosure include using a patch daisy chain, delay considerations, non-destructive patching and nested subroutine calls. ... Dialog Semiconductor Inc

10/29/15 / #20150309520

Maintaining the resistor divider ratio during start-up

Circuits and methods to maintain a resistive voltage divider ratio during start-up of an electronic circuit comprising a feed-forward capacitor across a feedback resistor using a dynamic start-up circuit are disclosed as e.g. A ldo or an amplifier. ... Dialog Semiconductor Inc

10/22/15 / #20150303802

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 Inc

10/22/15 / #20150303801

Buck variable negative current

An active diode formed within a buck power regulator with an nmos transistor is connected to a pmos transistor at a node that is further connected to the regulator output through an inductor. The active diode combines the nmos transistor with circuitry to prevent conduction once the active diode passes a threshold voltage. ... Dialog Semiconductor Inc

10/22/15 / #20150303800

Negative current clocking

A switching mode power supply (smps) is capable of 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 Inc

10/22/15 / #20150301800

Modulo9 and modulo7 operation on unsigned binary numbers

Simultaneous results of modulo7 and modulo9 operations on an unsigned binary number n are achieved by dividing n by a number d, d being power of 2 then the resulting quotient and remainder are used to calculate modulo 7 and modulo9 by repeatedly split-and accumulate operations. The solution allows shared use of a significant amount of logic components, by a scalable architecture modulo7 and modulo9 can be found on large numbers and allows flexible use if only modulo7 or only modulo9 calculation is required.. ... Dialog Semiconductor Inc

10/22/15 / #20150301551

Multiple output offset comparator

A multiple output comparator compares a first input signal and a second input signal. An output mirror circuit receives the comparison and sets an output signal at a first output terminal of the multiple output comparator to a digital state indicating that the magnitude of the first signal is greater than or lesser than the second signal. ... Dialog Semiconductor Inc

10/22/15 / #20150301091

Duty cycle independent comparator

Disclosed are methods and circuits to measure independently of duty cycles a pulsed current of a pass transistor of a switched circuit. Methods and circuits of one embodiment may be applied to precisely operate dc-to-dc converters such as buck converters in the most efficient operation modes. ... Dialog Semiconductor Inc

09/24/15 / #20150270812

Electronic biasing circuit for constant transconductance

An electronic biasing circuit provides a dc bias voltage to a circuit to be biased. The biasing circuit has a first transistor and a second transistor. ... Dialog Semiconductor Inc

09/17/15 / #20150264769

Mains synchronized pwm dimming

Driver circuits which reduce or remove flicker of solid state lighting ssl devices, notably at relatively low dimming levels are presented. The driver circuit comprises a power converter to transfer energy from an input of the driver circuit to the ssl device. ... Dialog Semiconductor Inc

09/17/15 / #20150263683

Method and circuit for improving the settling time of an output stage

The present document relates to amplifiers, notably multi-stage amplifiers, such as linear regulators or linear voltage regulators (e.g. Low-dropout regulators) configured to provide a constant output voltage subject to load transients. ... Dialog Semiconductor Inc

09/10/15 / #20150253790

Apparatus, system and method for voltage regulator with an improved voltage regulation using a remote feedback loop and filter

An apparatus, system, and method for a voltage regulator for improved voltage regulation using a remote feedback and remote feedback low pass filter. The system comprises of a power management unit, a remote load point (host), an inductor, a filtering capacitor, a printed circuit board (pcb) track output net, a ground connection, a remote feedback line, and a low pass filter (lpf). ... Dialog Semiconductor Inc

09/03/15 / #20150248136

Current control for output device biasing stage

Circuits and methods to control current through a device biasing an output device in case the supply voltage is not higher than the output voltage are disclosed. The circuits and methods are applicable to e.g. ... Dialog Semiconductor Inc

08/27/15 / #20150245438

Pdm modulation of led current

A modulated current of an led device provides a capability to dim of the light produced by a string of led device. The current modulation takes the form of pulse width modulation (pwm) or pulse density modulation (pdm). ... Dialog Semiconductor Inc

08/27/15 / #20150244248

Supply voltage management

A method for the start-up and/or the maintenance of a supply voltage for a driver circuit for a solid state light source is described. The driver circuit comprises a switched-mode power converter with a switch and a transformer. ... Dialog Semiconductor Inc

08/20/15 / #20150237695

Powerless bleeder

. . A power efficient method and system for ensuring a reliable operation of dimmers in conjunction with solid state lighting devices such as led or oled assemblies is presented. A controller for a driver circuit of a solid state light bulb assembly is described. ... Dialog Semiconductor Inc

08/20/15 / #20150237693

High voltage converter without auxiliary winding

The present document relates to driver circuits and/or power converters, e.g. For solid state lighting (ssl) devices, such as light emitting diodes (leds). ... Dialog Semiconductor Inc

08/20/15 / #20150236673

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 Inc

08/13/15 / #20150230300

Dual switcher flyback structure for led driver

Driver circuits to reduce or remove flicker of ssl devices are presented. A controller for a power converter which converts electrical power at an input voltage into electrical power at an output voltage is described. ... Dialog Semiconductor Inc

08/13/15 / #20150229214

Switching control of a bipolar transistor for dcdc power converters

The present document relates to direct current (dc) to dc power converters. In particular, the present document relates to dc to dc power converters which comprise one or more bipolar transistors as power switches. ... Dialog Semiconductor Inc

08/13/15 / #20150227156

Apparatus and method for a modified brokaw bandgap reference circuit for improved low voltage power supply

An apparatus and method for a bandgap voltage reference circuit with improved operation for a low voltage power supply. A bandgap voltage reference circuit which is operable at low power supply voltage for power supplies of 1.3v comprising of a first npn bipolar transistor, a second npn bipolar transistor, a third npn bipolar transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, and a first, second and third p-channel mosfet. ... Dialog Semiconductor Inc

08/13/15 / #20150227146

High speed regulator with low capacitor values

The present document relates to voltage regulators. In particular, the present document relates to a method and a corresponding voltage regulator with improved performance subject to load transients. ... Dialog Semiconductor Inc

07/30/15 / #20150214977

Apparatus for improving the accuracy of an exponential current digital-to-analog (idac) using a binary-weighted msb

An apparatus of an exponential current digital-to-analog converter (idac) using a binary-weighted msb to efficiently drive current controlled light emitting diode (led) devices. The apparatus comprises of an exponential current digital-to-analog converter (idac) current source, a voltage buffer to create an active cascode at the output stage, and an error amplifier that by means of a dc-dc converter voltage loop imposes an appropriate voltage at the output of the idac, depending on the current load set to drive the leds. ... Dialog Semiconductor Inc

07/30/15 / #20150214976

Method for improving the accuracy of an exponential current digital-to-analog (idac) using a binary-weighted msb

A method for the design synthesis of an exponential current digital-to-analog (idac) using a binary-weighted msb. The design synthesis involves defining an exponential lsb and exponential msb current mirrors according to a defined methodology. ... Dialog Semiconductor Inc

07/23/15 / #20150207511

Digital counter comprising reduced transition density

The present document relates to a digital counter providing counting information comprising at least a first and a second counting module, said counting modules being serially coupled forming a counting module chain; each counting module comprising at least a first and a second digital storage cell, each counting module providing module counting information comprising a width of at least two bits; the counting modules being adapted to change only one bit of said module counting information between two successive counting states; wherein the counting modules are coupled such that the start of counting of the second counting module is triggered by the first counting module if said first counting module once has passed through its possible counting states.. . ... Dialog Semiconductor Inc

07/23/15 / #20150205319

Apparatus and method for low voltage reference and oscillator

An apparatus and method for a voltage reference circuit and oscillator which operates for a low voltage power supply. The voltage reference circuit is used in an “always on” mode of operation, and have low power usage. ... Dialog Semiconductor Inc

07/09/15 / #20150195648

Post-filter for handling resonance-induced echo components

The a method and system for improving echo suppression and/or duplexity of handsfree telephone applications is presented. An echo suppression unit for an electronic device comprising a loudspeaker and a microphone is described. ... Dialog Semiconductor Inc

07/09/15 / #20150194890

Dc/dc converter efficiency improvement for low current levels

The present document relates to efficient dc/dc converters with a modular structure for providing different levels of output currents. A controller for controlling a power converter which is configured to convert electrical power at an input voltage into electrical power at an output voltage is described. ... Dialog Semiconductor Inc

07/09/15 / #20150194889

High voltage dc/dc converter with master/slave output stage

The present document relates to dc/dc converters with a modular structure for providing different levels of output currents. A power converter configured to convert electrical power at an input voltage into electrical power at an output voltage is described. ... Dialog Semiconductor Inc

07/02/15 / #20150188442

Current meter for load modulation communication receiver architecture

A load device on a secondary side of an isolated switching power converter communicates a digital message to a primary side controller by modulating the load current in accordance with certain predefined timing patterns. The load current modulation is detected by the primary side controller and the digital message is decoded based on the predefined timing patterns. ... Dialog Semiconductor Inc

06/25/15 / #20150177760

Method and system for gain boosting in linear regulators

A method and a system for increasing the open loop gain of linear regulators is presented. A linear regulator configured to derive an output voltage from an input voltage is described. ... Dialog Semiconductor Inc

06/25/15 / #20150177757

Cc-cv method to control the startup current for ldo

Methods and circuits for linearly controlling a limited, constant current during startup of ldos, amplifiers, or dc-to-dc converters independent of load capacitor size and controlling a clean transition without glitches from a constant current (cc) mode during startup to a constant voltage (cv) mode during normal operation (cc-cv method) are disclosed. The constant current control loop and the constant voltage control loop are implemented in such a way that at the end of startup the voltage loop has taken over control and the current loop is moved far away from its active transistor region, allowing a switch of modes to occur without any nasty transitions on the output.. ... Dialog Semiconductor Inc

06/25/15 / #20150177754

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 Inc

06/11/15 / #20150163879

Adaptive dimmer detection and control for led lamp

An led lamp is provided in which the output light intensity of the leds in the led lamp is adjusted based on the input voltage to the led lamp. A dimmer control unit detects a type of dimmer switch during a configuration process. ... Dialog Semiconductor Inc

06/11/15 / #20150162931

Analog to digital converter circuit

An analog-digital converter circuit is disclosed. Voltage control means is configured to control a voltage. ... Dialog Semiconductor Inc

06/11/15 / #20150160669

Fast load transient response system for voltage regulators

A circuit and a method for improving the performance of voltage regulators subject to load transients is presented. An auxiliary circuit generates an auxiliary current at an output of a voltage regulator. ... Dialog Semiconductor Inc

06/11/15 / #20150160270

Primary sensing of output voltage for an ac-dc power converter

A method for estimating an output voltage of a power converter comprises sensing a voltage waveform representative of the output voltage; and detecting a first gap and a second gap. The first gap is between a time when the sensed voltage waveform crosses a first voltage reference and a time when the sensed voltage waveform crosses a second voltage reference at a voltage offset below the first voltage reference. ... Dialog Semiconductor Inc

06/04/15 / #20150156844

Intensity control of leds interfacing three-way sockets

A light-emitting diode (led) lighting fixture is configured to interface a three-way socket and provide at least two levels of output light intensity. A detection unit determines whether one or both input voltages lines of the three-way socket are active and provides a control signal to an led controller indicating which input voltage lines are active. ... Dialog Semiconductor Inc

05/28/15 / #20150145493

Circuit with controlled inrush current

A circuit is provided with inrush current protection through control of the output current at start-up by a current source that does not rely on the output capacitor and which provides a smooth transition from a controlled current mode during a start-up phase to a voltage regulation mode.. . ... Dialog Semiconductor Inc

05/21/15 / #20150137774

Current limit control with constant accuracy

The present document relates to a current sensing and/or control circuit with reduced sensing errors. A current control circuit for controlling a load current into an electronic device is described. ... Dialog Semiconductor Inc

05/07/15 / #20150124495

Reducing power consumption of a synchronous rectifier controller

The embodiments herein describe a switched mode power converter. In particular, the embodiments herein disclose techniques for reducing power consumption of a synchronous rectifier controller of the switched mode power converter. ... Dialog Semiconductor Inc

05/07/15 / #20150123628

Apparatus and method for a voltage regulator with improved power supply reduction ratio (psrr) with reduced parasitic capacitance on bias signal lines

An apparatus and method for a system with improved power supply rejection ratio (psrr) over a wide frequency range. The improved psrr is achieved by negating the influence of the parasitic capacitance associated with the bias lines and the introduction of a regulated power supply with embodiments associated with providing a ripple free and regulated supply. ... Dialog Semiconductor Inc

04/30/15 / #20150115985

Temperature and supply voltage independent dc-dc current sensing

The present document relates to a current sensing circuit. In particular, the present document relates to a current sensing circuit which provides reliable indications of the current through a transistor. ... Dialog Semiconductor Inc

04/30/15 / #20150115920

Continuous comparator with improved calibration

An auto-calibrated current sensing comparator is provided. A secondary dynamic comparator shares the same inputs and acts to adjust a calibration control of the current sensing comparator. ... Dialog Semiconductor Inc

04/30/15 / #20150115908

Phase offset compensation for multiphase dc-dc converter

The present document relates to multiphase dc-dc power converters. In particular, the present document relates to the compensation of the phase offset incurred in multiphase dc-dc power converters which are controlled based on coil current zero crossing. ... Dialog Semiconductor Inc

04/23/15 / #20150108835

Dual input rtc supply generation with replica power path and autonomous mode of operation from the system supply

Circuits and methods providing a electronic power supply applicable to any dual supply rail systems, which require a smooth and uninterrupted output supply and a replica power path and autonomous mode of operation from the system power supply are disclosed. In a preferred embodiment of the invention the power supply is applied to a real time clock. ... Dialog Semiconductor Inc

04/16/15 / #20150102854

High efficiency charge pump circuit

The present document relates to charge pump voltage doublers for use in integrated circuits. A charge pump circuit configured to generate an output voltage vout at an output of the circuit from an input voltage vin at an input of the circuit is described. ... Dialog Semiconductor Inc

04/16/15 / #20150102779

Device and method for charging a battery

A method for charging a battery is provided, wherein current pulses are supplied to the battery, wherein each pulse is followed by a rest period during which no current is supplied to the battery, and wherein the state of charge of the battery is determined during the rest period.. . ... Dialog Semiconductor Inc

04/16/15 / #20150102740

Circuit and method for detecting the duration of the interruption of a mains input

A light bulb assembly comprises an electrical connection module, a driver circuit configured to provide electrical energy at a drive voltage, and a light source. The driver circuit converts electrical energy at an input voltage to the electrical energy at the drive voltage. ... Dialog Semiconductor Inc

04/09/15 / #20150097621

Capacitance minimization switch

A cmos transmission gate that is compensated for lost current to parasitic capacitance. Parasitic capacitance current is detected by an amplifier and fed back in-phase to the input of the cmos transmission gate with the gain of the amplifier set to avoid circuit instability. ... Dialog Semiconductor Inc

04/09/15 / #20150097542

Asymmetric inductors in multi-phase dcdc converters

A multi-phase dc-to-dc converter is configured to achieve fast transient response and to optimize efficiency over the load range. Phase shedding changes the active number of phases according to output currents. ... Dialog Semiconductor Inc

04/09/15 / #20150097541

Apparatus and method for a voltage regulator with improved output voltage regulated loop biasing

An apparatus and method for a linear voltage regulator with improved voltage regulation is disclosed. A linear voltage regulator device with improved voltage regulation that combines good resiliency to noisy ground reference, high power supply rejection ratio (psrr), good current load regulation with changes in the current load and good feedback loop stability. ... Dialog Semiconductor Inc

04/09/15 / #20150097534

Circuits and method for controlling transient fault conditions in a low dropout voltage regulator

An overshoot reduction circuit within a low dropout voltage regulator eliminates an overshoot at an output terminal resulting from a transient fault condition occurring at an input or output terminal. The overshoot reduction circuit monitors to sense if there is a transient fault condition occurring at the input or output terminal and provides a miller capacitance at the output terminal of a differential amplifier of the low dropout voltage regulator to prevent the output of the differential amplifier from being discharged to ground during the transient. ... Dialog Semiconductor Inc

03/19/15 / #20150078059

On-chip voltage generation for a programmable memory device

The present document relates to the programming of programmable memory devices, e.g. One-time programmable (otp) memory device. ... Dialog Semiconductor Inc

03/19/15 / #20150077082

Apparatus and method for a boost converter with improved electrical overstress (eos) tolerance

An apparatus and method for a boost power converter with improved electrical overstress (eos) tolerance is disclosed. A boost power converter provides a providing a pulse width modulation (pwm) boost power converter with an electrical overstress (eos) boost over-voltage comparator/switch network comprises a boost power converter, a boost overvoltage comparator, a boost overvoltage comparator feedback network, and a boost overvoltage switch. ... Dialog Semiconductor Inc

03/19/15 / #20150077076

Dual mode low dropout voltage regulator

A dual mode low dropout voltage regulator has a low dropout regulation mode and a bypass mode and provides a smooth transition between mode transitions taking place under load. When an accessory requires a larger voltage level, a bypass signal commands the dual mode low dropout voltage regulator to go into bypass mode and transfer voltage level of the unregulated input voltage source to the output of the dual mode low dropout voltage regulator. ... Dialog Semiconductor Inc

03/19/15 / #20150077075

Control circuit for multiple high side switches

The present document relates to the control of high side switches, e.g. The high side switches of half bridges. ... Dialog Semiconductor Inc

03/19/15 / #20150076999

Modifying duty cycles of pwm drive signals to compensate for led driver mismatches in a multi-channel led system

An led (light emitting diode) controller comprises a first led driver to generate a first pwm (pulse width modulation) drive signal to turn on or turn off, respectively, a first current through a first led string. Additionally, the led controller comprises a compensation circuit to generate the first pwm drive signal responsive to a first duty set signals. ... Dialog Semiconductor Inc

03/12/15 / #20150070085

Reduction in on-resistance in pass device

A pass device configured from a common gate transistor, wherein an input voltage is applied to the source and an output at the drain is applied to a load. The input resistance of the pass device increases as the input voltage is reduced and limits the useful range of the input voltage. ... Dialog Semiconductor Inc

03/05/15 / #20150061772

Circuit to reduce output capacitor of ldos

Circuits and methods to reduce the size of output capacitors of ldos or amplifiers are disclosed. Nonlinear mirroring of the load current allows scaling of gain or adapting small signal impedance of a pass transistor depending on other inputs, in case of a preferred embodiment, allows to reduce small signal impedance at the gate of the pass transistor as the load current increases, hence allowing to reduce the size of an output capacitor without compromising stability of the system.. ... Dialog Semiconductor Inc

03/05/15 / #20150061622

Method and apparatus for limiting startup inrush current for low dropout regulator

A low dropout (ldo) regulator with a limited startup inrush current is disclosed. The ldo includes a power source, error amplifier, pass transistor, feedback network, and a current limit control whose input is electrically connected to the pass transistor and the electrical output of the error amplifier and whose output limits current during startup. ... Dialog Semiconductor Inc

01/29/15 / #20150028778

Programmable phase-cut dimmer operation

The present document relates to solid state lighting (ssl) devices. A driver circuit for phase-cut dimmable ssl based lighting assemblies is described. ... Dialog Semiconductor Inc

01/29/15 / #20150028775

Line voltage switch event detection for led assemblies

A controller for controlling the illumination state of a light source of solid state lighting devices such as led or oled assemblies, is presented. The controller controls the light source according to a plurality of illumination states subject to determine an event of a plurality of events. ... Dialog Semiconductor Inc

01/15/15 / #20150015332

Method and circuit for controlled gain reduction of a gain stage

The present document relates to multi-stage amplifiers, such as linear regulators or linear voltage regulators (e.g. Low-dropout regulators) configured to provide a constant output voltage subject to load transients. ... Dialog Semiconductor Inc

01/15/15 / #20150015331

Method and circuit for controlled gain reduction of a differential pair

The present document relates to multi-stage amplifiers, such as linear regulators or linear voltage regulators (e.g. Low-dropout regulators) configured to provide a constant output voltage subject to load transients. ... Dialog Semiconductor Inc

01/15/15 / #20150015088

Capacitive dc power transformer

The present document relates to power transformers for electronic computing devices. In particular, a power converter configured to convert electrical power at a dc input voltage vin into electrical power at a dc output voltage is described. ... Dialog Semiconductor Inc

01/08/15 / #20150008902

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 Inc

01/01/15 / #20150001965

Method for determining and operating temperature of an electronic component

A method for determining the temperature of an electronic component in an electronic device comprises supplying a current to the electronic component via a power converter device, measuring an input current supplied to the power converter device, determining a power dissipation of the electronic component based on the measured input current, a value for an efficiency of the power converter device and an output voltage of the power converter device, and determining the temperature of the electronic component based on the determined power dissipation and a thermal resistance value for the electronic component.. . ... Dialog Semiconductor Inc








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