258 85 http://www.patentstorm.us/ http://www.patentstorm.us/images/logo.gif http://www.patentstorm.us/rss/class/applications/rss-323.xml Recent patent applications filings in USPTO Class 323 Electricity: power supply or regulation systems. Thu, 16 Feb 2012 15:01:24 patents@patentstorm.us en http://www.patentstorm.us/applications/20120038418/description.html

Application Number:  20120038418

Publication Date:  2012-02-16

Inventors:  Akyol, Hasan; Badillo, Dean; Agarwal, Bipul

A dB-linear voltage-to-current (V/I) converter that is amenable to implementation in CMOS technology. In a representative embodiment, the dB-linear V/I converter has a voltage scaler, a current multiplier, and an exponential current converter serially connected to one another. The voltage scaler supplies an input current to the current multiplier based on an input voltage. The current multiplier multiplies the input current and a current proportional to absolute temperature and supplies the ...
]]> 20120038418 http://www.patentstorm.us/applications/20120038345/description.html

Application Number:  20120038345

Publication Date:  2012-02-16

Inventors:  POREMBA, Andreas; LEHMKUHL, Jürgen

A power supply device for intrinsically safe power supply of an intrinsically safe load circuit includes a voltage source, a power-limiting circuit including at least two controllable semiconductor devices, a current-limiting circuit including at least one resistor, and a load circuit connector connected to the load circuit. The power-limiting circuit and the current-limiting circuit are active between the voltage source and the load circuit connector. The resistor includes a resistance value ...
]]> 20120038345 http://www.patentstorm.us/applications/20120038344/description.html

Application Number:  20120038344

Publication Date:  2012-02-16

Inventors:  Englekirk, Robert Mark; Kim, Tae Youn

Embodiments of signal bias generators and regulators are described generally herein. Other embodiments may be described and ...
]]> 20120038344 http://www.patentstorm.us/applications/20120038343/description.html

Application Number:  20120038343

Publication Date:  2012-02-16

Inventors:  Yamazaki, Kazuo; Takagi, Makoto

A constant current source has a first current source circuit for outputting a first current; a second current source circuit for outputting a second current according to a reference voltage; a current comparison circuit for comparing magnitudes of the first and second currents; and a current adjustment unit for adjusting a current value of the first current output from the first current source circuit in accordance with a comparison result of the current comparison ...
]]> 20120038343 http://www.patentstorm.us/applications/20120038342/description.html

Application Number:  20120038342

Publication Date:  2012-02-16

Inventors:  Christianson, David P.; Warren, William M.

A voltage regulator for a merchandise display security device provides an appropriate operating voltage through a power cable electrically connected between an alarm sensor and an item of merchandise. The voltage regulator utilizes a feedback signal from a power conversion chip and data from a microprocessor look-up table to adjust the input power to the merchandise. The look-up table stores appropriate operating voltage requirements for each power cable used for different types and brands of ...
]]> 20120038342 http://www.patentstorm.us/applications/20120038341/description.html

Application Number:  20120038341

Publication Date:  2012-02-16

Inventors:  Shimizu, Shinya; Michishita, Yuusuke

A non-isolated type switching regulator having an inductor includes: a switch element; a rectification element; an error amplifying circuit section amplifying a voltage difference between a feedback voltage and a first reference voltage and outputting as an error voltage; a first voltage comparison circuit section performing a voltage comparison of a ramp voltage which performs a voltage change set beforehand with the error voltage to be synchronized with the switching of the switch element and ...
]]> 20120038341 http://www.patentstorm.us/applications/20120038340/description.html

Application Number:  20120038340

Publication Date:  2012-02-16

Inventors:  SOENEN, Eric; ROTH, Alan; GAITHER, Justin; SHI, Justin

Some embodiments regard a method of controlling a regulator having an input voltage and an output voltage, comprising: turning on a first driver; determining a duration ratio having a first time period over the first time period and a second time period; the first time period and the second time period indicating a duration when the first driver and a second driver is on, respectively; generating a second voltage level for the reference voltage based on the duration ratio and a ripple voltage ...
]]> 20120038340 http://www.patentstorm.us/applications/20120038339/description.html

Application Number:  20120038339

Publication Date:  2012-02-16

Inventors:  Zhu, Guangyong; Wood, Merle J.; Clegg, Joseph A.

Power is supplied to an information handling system chipset with a single voltage regulator having dual phases. A first phase of the voltage regulator provides power to a low power state power rail in an independent mode to support a low power state, such as a suspend or hibernate state. A second phase of the voltage regulator provides power to a run power state power rail in combination with the first phase by activation of a switch, such as a MOSFET load switch, that connects the low power ...
]]> 20120038339 http://www.patentstorm.us/applications/20120038338/description.html

Application Number:  20120038338

Publication Date:  2012-02-16

Inventors:  KUNG, NIEN-HUI; CHU, KWAN-JEN

For output current detection of a voltage regulator, the currents in a high-side transistor and a low-side transistor of the voltage regulator are sensed and summarized to a summed current to flow through a setting resistor. The voltage variation on the setting resistor is monitored to provide a feedback signal for feedback control in the voltage regulator. This detection scheme removes the current sensing resistor from the charging current path of the voltage regulator to prevent efficiency ...
]]> 20120038338 http://www.patentstorm.us/applications/20120038337/description.html

Application Number:  20120038337

Publication Date:  2012-02-16

Inventors:  Buiatti, Gustavo; Voyer, Nicolas

An apparatus for controlling operation of a snubber circuit in a system in which an input voltage is processed using at least switches controlled with at least one periodical pattern. The input voltage is applied to the snubber circuit when the operation of the snubber circuit is enabled. The apparatus includes: a mechanism determining a periodical pattern to be used for controlling the switches, the periodical pattern modifying the input voltage; a mechanism disabling the operation of the ...
]]> 20120038337 http://www.patentstorm.us/applications/20120038336/description.html

Application Number:  20120038336

Publication Date:  2012-02-16

Inventor:  Zahrt, Christopher V

A digital pulse width modulation (PWM) control module for controlling one or more loads includes a transistor operatively connected to and configured to drive one of the loads and a microcontroller programmed to turn the transistor on and off in accordance with a pulse width modulated signal, the pulse width modulated signal comprising a start up delay, a pull in time, and a duty percentage associated with a hold cycle. The control module allows for limiting total current draw by creating a ...
]]> 20120038336 http://www.patentstorm.us/applications/20120038335/description.html

Application Number:  20120038335

Publication Date:  2012-02-16

Inventors:  ZHAO, YONG-XIAN; WU, KUN-LUNG; CHEN, SHI-TAO; HUNG, HSIANG-JUI; LI, YI-PING

A pulse modulation method for adjusting pulse signals according to a working voltage of a load, the method includes the following steps. The working voltage of the load is detected by a feedback terminal of a PWM controller. Whether the load is a light load or a heavy load is determined, if the load is a light load, a pulse skipping mode is entered; the voltage output to the load is detected by the feedback terminal. Whether the voltage output to the load is normal is determined, if the voltage ...
]]> 20120038335 http://www.patentstorm.us/applications/20120038334/description.html

Application Number:  20120038334

Publication Date:  2012-02-16

Inventors:  PENG, HUNG-CHUN; TSENG, KUO-LUNG; HUANG, JIAN-RONG

A voltage regulator includes an adjuster to provide an adjust signal according to its load current to adjust at least one of the feedback signal, the reference signal, the error signal, and the ripple signal of the voltage regulator, to automatically adjust the output voltage. The output voltage increases when the load current increases, and decreases when the load current decreases. Preferably, a CCR voltage regulator according to the present invention will have its PWM frequency varying with ...
]]> 20120038334 http://www.patentstorm.us/applications/20120038333/description.html

Application Number:  20120038333

Publication Date:  2012-02-16

Inventor:  Horn, Gene-Schie

This invented device uses mainly two circuits; namely, electronic switch and arithmetic average circuit to average the switched on/off source voltage, AC or DC, down to the load-needed lower value. This device is not of a high frequency coil transformer circuit, yet not of a resistive or reactive voltage drop or dividing circuit. The stepdown ratio of this device is soft-adjustable, and hence the voltage stabilization can be easily implemented inside itself. Inherently, the switching device is ...
]]> 20120038333 http://www.patentstorm.us/applications/20120038332/description.html

Application Number:  20120038332

Publication Date:  2012-02-16

Inventor:  LIN, Yung-Cheng

A linear regulator and a current sensing circuit are provided. The linear regulator comprises a pass transistor, a compensation capacitor, a variable resistor, an error amplifier and a current sensing circuit comprising a sense transistor controlled by the error amplifier and a voltage follower coupled with the second terminal of the pass transistor and the second terminal of the sense transistor. The sense transistor receives an input voltage, and generates a sense current proportional to a ...
]]> 20120038332 http://www.patentstorm.us/applications/20120038331/description.html

Application Number:  20120038331

Publication Date:  2012-02-16

Inventors:  Li, Xuening; Wu, Wenkai; Zhu, Weidong; Chen, Hal

Systems and devices for smooth light load operation in a DC/DC converter are presented. The disclosed systems and methods enable smooth discontinuous conduction mode (DCM)/continuous conduction mode (CCM) transition. The disclosed systems and methods of smooth light load operation in a DC/DC converter may also avoid the generation of sub-harmonics during light load operation. In an example embodiment, a rising ramp is used to control the ON time of the converter oscillator, while a falling ramp ...
]]> 20120038331 http://www.patentstorm.us/applications/20120038330/description.html

Application Number:  20120038330

Publication Date:  2012-02-16

Inventors:  Voyer, Nicolas; Buiatti, Gustavo; Kawakami, Tomoyuki; Okuda, Tatsuya

The present invention concerns an apparatus for controlling the output voltage of a boost converter composed of a number n of bridge devices (B, B2, B3) connected in series, each bridge device being composed of plural switches (S11, S12, S21, S22, S31, S32) and a capacitor (C1, C2, C3). The apparatus comprises means for controlling the switches according to one periodical pattern being decomposed in a number N of time ...
]]> 20120038330 http://www.patentstorm.us/applications/20120038329/description.html

Application Number:  20120038329

Publication Date:  2012-02-16

Inventors:  Hampo, Richard; Sweet, Benjamin D.

A system and method for controlling the output voltage of a power supply that includes a control section and an interconnect section having an output point. A voltage regulator provides a control section voltage, and a current measurement device measures a control section current and generates a current signal. A controller receives the current signal and a voltage command signal representing a desired output voltage at the output point of the interconnect section. The controller generates an ...
]]> 20120038329 http://www.patentstorm.us/applications/20120038290/description.html

Application Number:  20120038290

Publication Date:  2012-02-16

Inventors:  CHOI, Hyo-soon; KANG, Jeong-il

An apparatus and a method for common use of a power supply and a display apparatus using the same are provided. The display apparatus includes a display panel, a backlight unit which provides backlight to the display panel, and a power supply unit for common use which comprises an adjusting circuit unit comprising a plurality of resistances, and provides a current of a magnitude corresponding to a combination state of the plurality of resistances to the backlight unit. Accordingly, the power ...
]]> 20120038290 http://www.patentstorm.us/applications/20120033747/description.html

Application Number:  20120033747

Publication Date:  2012-02-09

Inventors:  Chi, Hongwu; Yang, Kewei

Embodiments include systems and methods of powering data communications transmitter circuitry using current sinked from biasing circuitry used to bias a transmission line between the data communications transmitter circuitry and data communications receiver circuitry. In some embodiments, the current sinked from the biasing circuitry is sourced by a power supply configured to power the data communications receiver circuitry. The current sinked from the biasing circuitry is then re-used to power ...
]]> 20120033747 http://www.patentstorm.us/applications/20120032748/description.html

Application Number:  20120032748

Publication Date:  2012-02-09

Inventors:  Li, Xuening; Wu, Wenkai; Zhu, Weidong; Chen, Hal

Systems and devices for ripple reduction in a DC/DC converter are presented. The disclosed systems and methods enable ripple reduction in discontinuous conduction mode (DCM) operation. In DCM, the inductor current peak to peak ripple may be reduced based on the load current. To achieve the reduction of the inductor peak to peak current ripple, a digital counter is used to count the time between consecutive PWM pulses. The digital output of the counter is used to control the pulse width ...
]]> 20120032748 http://www.patentstorm.us/applications/20120032686/description.html

Application Number:  20120032686

Publication Date:  2012-02-09

Inventors:  Wang, Chengyu; Liu, Weidong; Chen, Weijiang; Wang, Shaowu; Yue, Gongchang; Li, Zhibing

The present disclosure discloses a voltage source for calibrating a fast transient voltage measurement system, comprising a DC high voltage power supply, a discharging gap, a high voltage conductor and an earthing conductor, wherein the high voltage conductor and the earthing conductor are high voltage insulated from each other and form a traveling wave line with constant wave impedance; the DC high voltage power supply is connected between the ends of the high voltage conductor and the ...
]]> 20120032686 http://www.patentstorm.us/applications/20120032665/description.html

Application Number:  20120032665

Publication Date:  2012-02-09

Inventors:  Newdoll, Ronald M.; SHAVER, II, Argil E.

Distributed maximum power point tracking systems, structures, and processes are provided for power generation structures, such as for but not limited to a solar panel arrays. In an exemplary solar panel string structure, distributed maximum power point tracking (DMPPT) modules are provided, such as integrated into or retrofitted for each solar panel. The DMPPT modules provide panel level control for startup, operation, monitoring, and shutdown, and further provide flexible design and operation ...
]]> 20120032665 http://www.patentstorm.us/applications/20120032664/description.html

Application Number:  20120032664

Publication Date:  2012-02-09

Inventors:  Coleman, Charles; Wittenbreder, JR., Ernest H.

Methods, systems, and devices are described for a non-isolated dc-dc power converter that uses a single magnetic element and provides both a positive and a negative voltage output. The magnetic element, such as an inductor, is coupled with two or more switching modules that electrically switch the inductor to and from a voltage source, an inductor terminal, and/or a load. By electrically connecting and electrically isolating different components at various times, separate positive and negative ...
]]> 20120032664 http://www.patentstorm.us/applications/20120032663/description.html

Application Number:  20120032663

Publication Date:  2012-02-09

Inventor:  Divan, Deepakraj

Various systems and methods are provided for minimizing an inrush current to a load after a voltage sag in a power voltage. In one embodiment, a method is provided comprising the steps of applying a power voltage to a load, and detecting a sag in the power voltage during steady-state operation of the load. The method includes the steps of adding an impedance to the load upon detection of the sag in the power voltage, and removing the impedance from the load when the power voltage has reached a ...
]]> 20120032663 http://www.patentstorm.us/applications/20120032662/description.html

Application Number:  20120032662

Publication Date:  2012-02-09

Inventor:  Divan, Deepakraj

Various systems and methods are provided for minimizing an inrush current to a load after a voltage sag in a power voltage. In one embodiment, a method is provided comprising the steps of applying a power voltage to a load, and detecting a sag in the power voltage during steady-state operation of the load. The method includes the steps of adding an impedance to the load upon detection of the sag in the power voltage, and removing the impedance from the load when the power voltage has reached a ...
]]> 20120032662 http://www.patentstorm.us/applications/20120032661/description.html

Application Number:  20120032661

Publication Date:  2012-02-09

Inventor:  NAKAMURA, Masaru

A switching power source apparatus includes a high-side MOSFET 11 connected to an input voltage, a ramp signal generator 18 to generate a ramp signal in synchronization with a switching frequency of the high-side MOSFET 11, an amplitude signal generator to generate an amplitude signal Comp corresponding to an amplitude of the ramp signal, a superposing circuit 3 to generate a second ramp signal having a positive inclination corresponding to the amplitude and ...
]]> 20120032661 http://www.patentstorm.us/applications/20120032660/description.html

Application Number:  20120032660

Publication Date:  2012-02-09

Inventor:  NAKAMURA, Masaru

A switching power source apparatus includes a high-side MOSFET 11, a ramp signal generator 18 to generate a ramp signal, an amplitude signal generator 2 to generate an amplitude signal Comp corresponding to an amplitude of the ramp signal, a superposing circuit 3 to generate a superposed signal by superposing a second ramp signal on a first reference voltage, a first feedback controller 1 to control the ON timing and ON width of the high-side MOSFET, an ...
]]> 20120032660 http://www.patentstorm.us/applications/20120032659/description.html

Application Number:  20120032659

Publication Date:  2012-02-09

Inventors:  KUROSAWA, Eiichiro; Tanaka, Jun

A power supply device for transforming a DC input voltage by switching charging/discharging of an inductor, and obtaining a DC output voltage by smoothing the transformed voltage by a capacitor, includes: a transistor for synchronous rectification coupled between the inductor and the capacitor; a current determination circuit for determining whether a current flowing through the transistor is less than a lower-limit current; and a control circuit for operating the transistor in a constant ...
]]> 20120032659 http://www.patentstorm.us/applications/20120032658/description.html

Application Number:  20120032658

Publication Date:  2012-02-09

Inventors:  Casey, Charles A.; Dearn, David

A DC-to-DC, buck-boost voltage converter includes a duty cycle controller configured to generate control signals for a buck driver configured to drive first and second buck switching transistors at a buck duty cycle and to generate control signals for a boost driver configured to drive first and second boost switching transistors at a boost duty cycle. The duty cycle controller includes at least a duty cycle timer and an offset timer where the duty cycle controller applies the duty cycle timer ...
]]> 20120032658 http://www.patentstorm.us/applications/20120032657/description.html

Application Number:  20120032657

Publication Date:  2012-02-09

Inventor:  Dequina, Noel B.

Methods, apparatuses, and devices for a voltage regulator are provided. In certain examples, a method for preventing shoot-through in a voltage regulator includes determining whether an output stage for a voltage regulator is operating in a continuous-conduction mode (CCM) or a discontinuous conduction mode (DCM); and setting the voltage regulator in one of adaptive dead time mode and programmable dead time mode based on whether the output stage is operating in CCM or ...
]]> 20120032657 http://www.patentstorm.us/applications/20120032656/description.html

Application Number:  20120032656

Publication Date:  2012-02-09

Inventors:  Wook, Jeon Jae; Hoon, Chun Jung; Won, Kwon Kee; Hyun, Song Jong; Seok, Kim

Disclosed herein are a voltage regulator for impedance matching and pre-emphasis, a method of regulating voltage for impedance matching and pre-emphasis, and a voltage mode driver using the voltage regulator and the method. The voltage regulator includes a first loop circuit configured to regulate a supply voltage for a pre-driver of a main tap, a second loop circuit configured to regulate a supply voltage for a pre-driver of a pre-emphasis tap, and a driver voltage determination unit ...
]]> 20120032656 http://www.patentstorm.us/applications/20120032655/description.html

Application Number:  20120032655

Publication Date:  2012-02-09

Inventors:  Seaberg, Charles E.; Burch, Kenneth R.; Ramaraju, Ravindraraj

A circuit including a multistage voltage regulator having a plurality of stages each including a regulated node and a bias transistor. The bias transistors and regulated nodes are configured to control the voltage of the regulated nodes. For at least some of the stages, the regulated nodes are coupled to voltage supply terminals of circuit modules of the ...
]]> 20120032655 http://www.patentstorm.us/applications/20120032654/description.html

Application Number:  20120032654

Publication Date:  2012-02-09

Inventors:  Dohnal, Dieter; Lessmann-Mieske, Hans-Henning; Brueckl, Oliver

The invention relates to an on-load tap changer comprising semiconductor switching elements for uninterrupted switching between fixed tap changer contacts which are electrically connected to winding taps of a tapped transformer. Each of the fixed tap changer contacts can be connected to a charge diverter either directly or, during switching, via the semiconductor switching elements that are connected therebetween. According to the invention, the charge diverter has fixed, divided diverting ...
]]> 20120032654 http://www.patentstorm.us/applications/20120032653/description.html

Application Number:  20120032653

Publication Date:  2012-02-09

Inventor:  Divan, Deepakraj

Various systems and methods are provided for minimizing an inrush current to a load after a voltage sag in a power voltage. In one embodiment, a method is provided comprising the steps of applying a power voltage to a load, and detecting a sag in the power voltage during steady-state operation of the load. The method includes the steps of adding an impedance to the load upon detection of the sag in the power voltage, and removing the impedance from the load when the power voltage has reached a ...
]]> 20120032653 http://www.patentstorm.us/applications/20120032652/description.html

Application Number:  20120032652

Publication Date:  2012-02-09

Inventors:  Turchi, Joel; Conseil, Stéphanie

A method and circuit for generating a clock signal. A power factor correction circuit has n channels operating out of phase and independently. The circuit is able to generate a clock signal for each channel according to the current cycle duration of each ...
]]> 20120032652 http://www.patentstorm.us/applications/20120032651/description.html

Application Number:  20120032651

Publication Date:  2012-02-09

Inventor:  Torrico-Bascopé, Grover Victor

A power factor correction of three-phase boost-type conversion is disclosed. Embodiments comprising multi-leg autotransformers are disclosed, e.g. comprising 3-phase low-pass filtering impedances such as capacitors between an input of a converter and a midpoint of the ...
]]> 20120032651 http://www.patentstorm.us/applications/20120031455/description.html

Application Number:  20120031455

Publication Date:  2012-02-09

Inventors:  Yokoyama, Yasuhiro; Hayashi, Kazuhiko

A solar cell module is disclosed that includes a solar cell power generating unit and a connecting member. The connecting member supplies the output of a solar cell to an external electronic component. The connecting member includes a covering member and an output connecting portion. The covering member covers at least the surface of a terminal portion among the surfaces of the terminal portion and a protective member. The output connecting portion has one end disposed in the covering member ...
]]> 20120031455 http://www.patentstorm.us/applications/20120025802/description.html

Application Number:  20120025802

Publication Date:  2012-02-02

Inventor:  Carmen, Daniel F.

A load control device adapted to be coupled between an AC power source and an electrical load for controlling the power delivered to the load includes a power supply having an energy storage capacitor and a charge pump circuit adapted to conduct an input charging current through the load and to conduct an output charging current through the energy storage capacitor to thus generate a DC supply voltage across the energy storage capacitor, where the output charging current has a magnitude greater ...
]]> 20120025802 http://www.patentstorm.us/applications/20120025801/description.html

Application Number:  20120025801

Publication Date:  2012-02-02

Inventors:  HIROSE, Tetsuya; Osaki, Yuji

A MOS resistor generates an output current based on a voltage induced across a drain and a source thereof. A gate bias voltage generator circuit generates a gate bias voltage so as to operate the MOS resistor in a strong-inversion linear region, and applies the gate bias voltage to a gate of the MOS resistor. A drain bias voltage generator circuit generates a drain bias voltage, and applies the drain bias voltage to the drain of the MOS resistor. An added bias voltage generator circuit ...
]]> 20120025801 http://www.patentstorm.us/applications/20120025800/description.html

Application Number:  20120025800

Publication Date:  2012-02-02

Inventors:  Dettloff, Wayne D.; Wilson, John M.; Poulton, John W.

A voltage mode transmitter equalizer has high efficiencies, yet consumes substantially constant supply current from the power supply and provides constant back-match impedance. The voltage mode transmitter equalizer is configured such that the output voltage of the signal to be output on a pair of transmission lines can be controlled according to the input data, but its return impedance is substantially matched to the differential impedance of the transmission lines and it draws substantially ...
]]> 20120025800 http://www.patentstorm.us/applications/20120025799/description.html

Application Number:  20120025799

Publication Date:  2012-02-02

Inventors:  Kahn, Seth; Tournatory, David Christian Gerard

The disclosed embodiments of voltage regulators incorporate a current mode control architecture. In one embodiment, a comparator mechanism triggers a transition in a power switch when the error in the regulated output voltage is equal to a proportionally scaled value of current provided at an output filter. The voltage regulator includes a power switch having an input and an output. The power switch is configured to provide a first voltage during a first conduction period and a second voltage ...
]]> 20120025799 http://www.patentstorm.us/applications/20120025798/description.html

Application Number:  20120025798

Publication Date:  2012-02-02

Inventor:  LIU, Ta-I

A voltage-modulated circuit device uses a power source of a modulation circuit to acquire a predetermined trigger voltage through a voltage acquisition circuit and a step-down circuit to step down a voltage, and then a voltage amplification circuit amplifies the voltage by several times, such that the trigger voltage amplified by several times still falling within the range of predetermined voltage values triggers and conducts a switch circuit, and the power source of the modulation circuit can ...
]]> 20120025798 http://www.patentstorm.us/applications/20120025797/description.html

Application Number:  20120025797

Publication Date:  2012-02-02

Inventors:  NAGAI, Ryuta; FUTAMURA, Kazuyoshi; MATSUMOTO, Takashi

A control circuit for controlling a power supply including a first switch and a second switch coupled in series between a first potential and a second potential. The control circuit includes a detection circuit that detects a magnitude relation of a voltage value at a node between the first and second switches and a reference value during a period in which the first switch and the second switch are inactivated. The detection circuit generates a control signal corresponding to the magnitude ...
]]> 20120025797 http://www.patentstorm.us/applications/20120025796/description.html

Application Number:  20120025796

Publication Date:  2012-02-02

Inventor:  Kahn, Seth

The disclosed embodiments of voltage regulators incorporate a current mode control architecture. In one embodiment, a voltage regulator includes a power switch having an input and an output. The power switch is configured to provide a first voltage during a first conduction period and a second voltage during a second conduction period. An output filter is coupled between the power switch output and an output terminal to be coupled to a load. An adjustment device is coupled to sense a current ...
]]> 20120025796 http://www.patentstorm.us/applications/20120025795/description.html

Application Number:  20120025795

Publication Date:  2012-02-02

Inventor:  Nakashima, Heisuke

There is provided a PWM comparator which needs no current detecting differential amplifier in a control circuit constituting a current mode control DC/DC converter. The comparator includes a differential input stage including two pairs of input differential transistors whose sources are commonly connected for each pair; two constant-current sources connected to the common sources of the pairs of input differential transistors, respectively; a load transistor commonly connected to drain sides of ...
]]> 20120025795 http://www.patentstorm.us/applications/20120025794/description.html

Application Number:  20120025794

Publication Date:  2012-02-02

Inventors:  Sumitomo, Masakiyo; INOUE, Takeshi

A drive controller for driving an inductive load connected to a node between first and second switches connected in series with a direct current voltage source includes a first diode, a series circuit of a second diode and an inductor, and a control circuit. The first diode is a parasitic diode of the first switch and connected in antiparallel with the first switch. The series circuit is connected in parallel with the first diode. The control circuit drives the inductor load by applying a ...
]]> 20120025794 http://www.patentstorm.us/applications/20120025793/description.html

Application Number:  20120025793

Publication Date:  2012-02-02

Inventors:  CHEN, AN-TUNG; YANG, CHIH-HAO; TAI, TING-JUNG

A control circuit and method of a switching DC-DC power supply detects the error between the output voltage of the power supply and a design value of the output voltage and according to the error, determines an offset adjust signal to adjust the offset of an error comparator of the power supply to pull the output voltage toward the design ...
]]> 20120025793 http://www.patentstorm.us/applications/20120025792/description.html

Application Number:  20120025792

Publication Date:  2012-02-02

Inventors:  POPESCU, Serban Mihai; LIPCSEI, Laszlo; POPESCU-STANESTI, Vlad Mihail Dan

A controller for a power converter includes a first amplification stage and a second amplification stage coupled to the first amplification stage. The first amplification stage generates a first amplified signal at a first terminal of an energy storage element according to an output signal the power converter. The second amplification stage generates a second amplified signal at a second terminal of the energy storage element and varies the second amplified signal in response to a change in the ...
]]> 20120025792 http://www.patentstorm.us/applications/20120025791/description.html

Application Number:  20120025791

Publication Date:  2012-02-02

Inventors:  Abu Qahouq, Jaber A.; Hong, Yang-Ki; Bae, Seok

The disclosure relates to inductors fabricated on a substrate. A first inductor is formed by depositing conducting material on a first side of the substrate and a second inductor is formed by depositing material on a second side of the substrate. The inductors have the same cross section and the paths of the conducting materials are mirror images and provide magnetic flux on a portion of the substrate when equal currents flow in the ...
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