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US20140145690 INTERNAL VOLTAGE GENERATION CIRCUITS  
An internal voltage generation circuit includes a reference voltage generator and an internal voltage generator. The reference voltage generator is configured to adjust resistance values according...
US20130257396 BANDGAP REFERENCE CIRCUIT FOR PROVIDING REFERENCE VOLTAGE  
A bandgap reference circuit includes a first circuit, a second circuit and a third circuit. The first circuit is for generating a first current and a first voltage according to a first reference...
US20150077070 FEEDFORWARD CANCELLATION OF POWER SUPPLY NOISE IN A VOLTAGE REGULATOR  
A voltage regulator that provides feedforward cancellation of power supply noise is disclosed. The voltage regulator includes a process tracking circuit that receives a supply voltage and...
US20130113445 POWER CONVERSION FEEDBACK CONTROL CIRCUIT  
A power conversion circuit of two feedback loops is disclosed that includes a feedback control circuit for ramping up or down a commanded voltage to a load (e.g., LEDs). The second feedback loop...
US20110193542 Thermally Controlled Driver/Switching Regulator, and Methods of Controlling and/or Regulating a Driver and/or Switching Regulator  
The present invention provides circuits and methods for regulating and/or controlling integrated circuits such as drivers and switching regulators. The circuit generally includes a first switch...
US20110187334 POWER SUPPLY CIRCUIT AND ELECTRONIC DEVICE  
A power supply circuit 10 includes a first error amplifier that compares a predetermined reference voltage and an output voltage of a feedback voltage generation circuit and amplifies the obtained...
US20110133707 STABLE LOW DROPOUT VOLTAGE REGULATOR  
A Low-dropout (LDO) voltage regulator (1) includes: —a Ballast Transistor PBaI (3) of the P-channel MOS or Bipolar type, having a gate (34) and a main conduction path (D-S) connected in a path...
US20120274294 CONTROLLER FOR CONVERTING CIRCUIT  
A control circuit adapted to a DC-DC converting circuit is disclosed. The controller comprises a reference voltage generator, a reference voltage adjusting circuit, a feedback circuit and a...
US20150001938 REGULATOR FOR INTEGRATED CIRCUIT  
An electronic circuit includes a functional circuit in series with at least one first current source between two terminals of application of a power supply voltage. The first current source is...
US20110031945 THRESHOLD VOLTAGE EXTRACTION CIRCUIT  
A pair of MOS transistors (10,12) are arranged as a potential divider. As the MOS transistors (10,12) pass from a weak inversion regime to a strong inversion regime, the voltage at the midpoint of...
US20130069608 VOLTAGE REGULATOR STABILIZATION FOR OPERATION WITH A WIDE RANGE OF OUTPUT CAPACITANCES  
A voltage regulator includes a measurement circuit for obtaining a value representing a magnitude of an output capacitance connected at an output node of the voltage regulator. A correction...
US20130021007 SWITCHING POWER SOURCE CIRCUIT  
A switching power source circuit includes a first reactor having coils L1-1 and L1-2 connected in series, a second reactor connected in series with the first reactor, a series circuit connected...
US20140306671 HIGH PERFORMANCE CURRENT SOURCE POWER SUPPLY  
A system can include a device under test (DUT) having a DUT voltage, a cable connected to the DUT, the cable having a cable inductance, and a power supply configured as a current source to provide...
US20140253072 VOLTAGE REGULATORS WITH IMPROVED STARTUP, SHUTDOWN, AND TRANSIENT BEHAVIOR  
A soft-start/soft-stop (SS) controller for a voltage regulator. The SS controller includes a power up/down detector configured to perform at least one selected from a group consisting of detecting...
US20130027008 START-UP CIRCUIT  
The present relates to a start-up circuit, which is used for starting up a variable power supply circuit, which comprises a detection circuit and a transition circuit. The detection circuit is...
US20140117950 VOLTAGE REGULATOR CIRCUIT  
A voltage regulator circuit includes a differential amplifier stage. The gate terminal of a first n-channel MOSFET is coupled to an output of the differential amplifier stage. A resistor is...
US20090243566 Converter Arrangement and Method for Preparing a Converted Signal  
A converter arrangement includes a converter device (200) with a clocked operating mode and a non-clocked operating mode, having a signal input (Si), a control input (Se), and a signal output...
US20120146596 VOLTAGE CONVERTER  
A voltage converter includes a voltage converting circuit, a pulse width modulation (PWM) controller, a feedback circuit, an adjusting circuit, and a measuring circuit. The voltage converting...
US20130106372 Transformer Voltage Regulation  
In various embodiments, a transformer provides a voltage. A regulating circuit coupled to the transformer regulates the voltage to provide either a first voltage or a second voltage that is...
US20120293143 Method and Device for Generating an Adjustable Bandgap Reference Voltage  
Generating an adjustable bandgap reference voltage comprises generating a current proportional to absolute temperature comprising an equalization of the voltages across the terminals of a core...
US20150091537 USE OF A THERMISTOR WITHIN A REFERENCE SIGNAL GENERATOR  
Reference signal generators using thermistors are disclosed. An apparatus includes a first device having a first temperature coefficient and a thermistor having a second temperature coefficient...
US20110121801 Automatic current limit adjustment for linear and switching regulators  
Circuits and methods for dynamic adjustment of the current limit of a power management unit to avoid unwanted automatic interruption of the power flow have been disclosed. The power management...
US20150035507 DUAL MODE VOLTAGE REGULATOR WITH DYNAMIC RECONFIGURATION CAPABILITY  
A dual mode voltage regulator according to one embodiment includes a passive regulator circuit; a switching regulator circuit; and a controller circuit configured to monitor operational parameters...
US20120105027 HIGH EFFICIENCY, THERMALLY STABLE REGULATORS AND ADJUSTABLE ZENER DIODES  
This document discusses, among other things, apparatus for high-efficiency, thermally-compensated regulators. In an example, a regulator can include a zener diode having a first temperature...
US20130320942 VOLTAGE REGULATOR CIRCUIT WITH ADAPTIVE CURRENT LIMIT AND METHOD FOR OPERATING THE VOLTAGE REGULATOR CIRCUIT  
A voltage regulator circuit and a method for operating the voltage regulator circuit are described. In one embodiment, a voltage regulator circuit includes an input terminal to receive an input...
US20150177752 VOLTAGE REGULATOR  
Provided is a voltage regulator that is low in current consumption and is capable of suppressing the occurrence of an excessive overshoot at an output terminal when a power supply voltage becomes...
US20120194147 VOLTAGE REGULATOR  
Provided is a voltage regulator capable of enabling overcurrent protection in a state in which an output current is large even if an input/output voltage difference is small, without waiting until...
US20100026381 POWER SAVING CIRCUIT FOR PWM CIRCUIT  
The present invention provides a power saving circuit for PWM circuit. The power saving circuit is utilized to control at least one internal circuit. The power saving circuit comprises a switching...
US20140049234 REGULATOR FOR CONTROLLING OUTPUT VOLTAGE  
There is provided a regulator for controlling an output voltage, capable of stabilizing the voltage output from the regulator. The regulator for controlling an output voltage may include an output...
US20120206110 REVERSE CURRENT PREVENTION CIRCUIT, CHARGING CIRCUIT INCORPORATING REVERSE CURRENT PREVENTION CIRCUIT, AND CONSTANT-VOLTAGE CIRCUIT INCORPORATING REVERSE CURRENT PREVENTION CIRCUIT  
A reverse current prevention circuit, connected to an input terminal, an output terminal, and a driver transistor, including a current detection circuit to detect a current flowing through the...
US20080174283 Robust Ground Start Detection  
A communication card including a card substrate, a power interface adapted to receive power from a power source and distribute it to elements mounted on the card substrate and a ground start...
US20120249098 CIRCUITS AND METHODS FOR CURRENT SENSING  
A circuit includes a first resistor, a second resistor, a voltage follower and a current mirror. The first resistor converts a current flowing through the first resistor to a voltage drop between...
US20120256605 BAND-GAP VOLTAGE GENERATOR  
A generator of a voltage logarithmically variable with temperature may include a differential amplifier having a pair of transistors, each coupled with a respective bias network adapted to bias in...
US20110156667 VOLTAGE REGULATOR WHICH PROVIDES SEQUENTIALLY AND ARBITRARRILY SHAPED REGULATED VOLTAGE AND RELATED METHOD  
A voltage regulator includes an amplifier, a power device, a delay signal generator, and a voltage-generating circuit. The amplifier generates a control signal according to a reference voltage and...
US20120200272 SHUNT REGULATOR FOR HIGH VOLTAGE OUTPUT USING INDIRECT OUTPUT VOLTAGE SENSING  
Embodiments disclosed herein provide for a voltage regulator having one or more Zener diodes coupled in series between an output voltage and system ground. The one or more Zener diodes are in a...
US20140266087 START-UP CIRCUIT FOR VOLTAGE REGULATION CIRCUIT  
Among other things, techniques and systems are provided to pre-charge a node of a primary circuit, such as a voltage regulator or bandgap voltage reference, via a start-up circuit. The node is...
US20150145487 Method and Device for Generating an Adjustable Bandgap Reference Voltage  
According to an embodiment, generating an adjustable bandgap reference voltage includes generating a current proportional to absolute temperature (PTAT). Generating the PTAT current includes...
US20110057633 Load driving circuit  
Provided is a circuit capable of further reducing noise that increases along with an amplitude of a flow-through current flowing through a charge pump circuit. A load driving circuit includes: an...
US20110148369 Device and Method for Converting a Potential  
A potential converter device with a first storage capacitor implemented to be supplied with energy from an energy source to acquire a first potential form at the first storage capacitor, and a...
US20120127151 POWER SUPPLY DEVICE, LIQUID CRYSTAL DRIVE DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE  
The power supply device according to the present invention comprises a first power supply circuit arranged to generate a first output voltage from an input voltage; and a second power supply...
US20090295344 POWER-REGULATOR CIRCUIT HAVING TWO OPERATING MODES  
Embodiments of a power-regulator circuit having two operating modes are described. This power-regulator circuit includes control logic that is configured to select a given operating mode based on...
US20130027007 AMPLIFIER WITH MULTIPLE ZERO-POLE PAIRS  
An amplifier is disclosed. In accordance with some embodiments of the present disclosure, an amplifier may comprise a differential pair comprising a first transistor and a second transistor,...
US20120146595 REGULATOR WITH HIGH PSRR  
A regulator for providing a low dropout voltage at an output node of the regulator is provided. An amplifier has a non-inverting input terminal for receiving an input voltage, an inverting input...
US20120133287 Wireless Sensor Having a Variable Transmission Rate  
A sensing device transmits wireless signals when an error between at least one sampled parameter value and at least one predicted parameter value is too great, such that the sensing device...
US20120256604 POWER REGULATION CIRCUIT AND ELECTRONIC DEVICE WITH THE SAME  
A power regulation circuit is connected to a voltage supply unit for receiving a power-on voltage supplied by the voltage supply unit and to a voltage management unit for enabling an enable port...
US20120001604 VOLTAGE REGULATION CIRCUIT  
A voltage regulation circuit includes: a first voltage divider that divides a regulation voltage with a predetermined division ratio to generate a division voltage; a first current driving force...
US20130257397 Current Calibration Method and Associated Circuit  
A current calibration method and the associated control circuit are provided. The method includes: providing a predetermined voltage to the differential output for obtaining an accurate current...
US20110121797 DELAY COMPENSATION FOR A DC-DC CONVERTER  
A method of controlling a DC-DC converter is disclosed, which provides for compensation of the loop-delay caused by, for instance, delays in operation of the comparator. The method is exemplified...
US20120223684 VOLTAGE REGULATOR AND INTEGRATED CIRCUIT INCLUDING THE SAME  
A voltage regulator includes a power supply unit configured to generate a power supply voltage based on a reference voltage and a feedback voltage, configured to control a current level of a power...
US20100207591 VOLTAGE REGULATOR  
To provide a voltage regulator having low current consumption. [Solving Means] In a case of a light load, activation currents flowing through NMOS transistors (22) and (25) to activate a voltage...

Matches 1 - 50 out of 121 1 2 3 >