Electricity: power supply or regulation systems inventions 04/09

20090108817 - Method for actuation by boosting power source voltage: A method for actuation by boosting power source voltage includes: determining an overclocking range of an electronic device, setting a duty frequency of the electronic device, detecting actuation conditions of the electronic device, and switching actuation power value. First, get the upper limit of the duty frequency of the electronic... Agent: Joe Mckinney Muncy

20090108818 - Switching power supply circuit: According to the present invention, an auxiliary power supply 10 which supplies a power supply voltage to a photocoupler 9 for feeding back fluctuations in the voltage of an output part 2 is only made up of a diode for passing a current only through the collector of a phototransistor... Agent: Steptoe & Johnson LLP

20090108819 - Method for controlling start time series by stages: A method for controlling start time series by stages adopted for use on a power supply consisting of a main power system and a standby power system. The power supply includes an energy storage unit to store a judgment power. The method mainly includes: setting a start voltage, setting a... Agent: Joe Mckinney Muncy

20090108820 - Topology for a positive buck-boost switching regulator: A new topology for a buck-boost switching regulator is provided herein. Embodiments provide an efficient buck-boost switching regulator that provides a regulated output voltage from an unregulated input voltage. Embodiments include a buck-boost switching regulator topology, where the operating mode is determined separately from the pulse-width modulated (PWM) control signal.... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20090108821 - Multi-phase voltage regulation module: A voltage regulator module that includes components for a multi-phase converter, the converter including a plurality of power stage elements on one circuit board, a control element, driver elements, and elements for the output stages of the power stage elements on another circuit board.... Agent: Ostrolenk Faber Gerb & Soffen

20090108822 - Power supply unit and portable device: A power supply unit is adapted to automatically switch its operational mode between a light load mode and a heavy load mode depending on the level of its output current. The unit has a first error amplification circuit for controlling a first output circuit in the heavy load mode, and... Agent: Rohm Co., Ltd. C/o Keating & Bennett, LLP

20090108823 - Control circuit and method for maintaining high efficiency in switching regulator: A high efficiency control circuit for operating a switching regulator is provided. The switching regulator can regulate an output voltage no matter the input voltage is higher, lower, or close to the output voltage. The switching regulator has first, second, third and fourth switches. The control circuit can operate the... Agent: Jianq Chyun Intellectual Property Office

20090108824 - Power supply controller and method therefor: In one embodiment, a PWM controller uses the input power of a power system to regulate a duty cycle of a switching PWM signal.... Agent: Semiconductor Components Industries, LLC Intellectual Property Dept. - A700

20090108825 - Charging circuit for a vehicle charger: A charging circuit for a vehicle charger includes a front high-voltage protective circuit, a rear high-voltage protective circuit, a first filtering circuit, an over-voltage protective circuit, a high frequency step-down switching regulator, a second filtering circuit, a frequency modulation circuit, a reference voltage input circuit, a sampling circuit, a short-circuit... Agent: Wpat, PC Intellectual Property Attorneys

20090108826 - Modulator with linear period stretching capability: A modulator for use with a voltage regulator includes an input for receiving an input voltage, an output for providing a periodic triangular wave form and at least one input for receiving an indication that the voltage regulator is in a discontinuous current mode of operation. The circuitry within the... Agent: Howison & Arnott, L.l.p

20090108827 - Under voltage lock out circuit and method: An under voltage lock out circuit which monitors an input voltage and executes a predetermined sequence when the input voltage satisfies a predetermined condition may include a voltage comparison unit which compares the input voltage and a predetermined threshold voltage, and outputs a comparison signal; a logic circuit which receives... Agent: Cantor Colburn, LLP

20090108828 - Adaptive power supply: In one embodiment, an apparatus includes a power negotiator configured to receive a power request signal, determine if the request signal is acceptable, and transmit a signal based on the determination. The request signal comprises a requested power level. A switcher coupled to the power negotiator generates the requested power... Agent: Haynes And Boone, LLPIPSection

20090108829 - Control integrated circuit with combined output and input: A control circuit for a voltage converter including a power switch for providing power to a load in accordance with an embodiment of the present application includes a driver circuit operable to provide a first control signal to the power switch to turn the power switch on and off such... Agent: Ostrolenk Faber Gerb & Soffen

20090102436 - Controller for the three-phase cascade multilevel converter used as shunt active filter in unbalanced operation with guaranteed capacitors voltages balance: The present invention comprises a controller for the cascade H-bridge three-phase multilevel converter used as a shunt active filter. Based on the proposed mathematical model, the controller is designed to compensate harmonic distortion and reactive power due to a nonlinear distorting load. Simultaneously, the controller guarantees regulation and balance of... Agent: Defillo & Associates, Inc.

20090102437 - Power generating apparatus: A power generating apparatus including an AC generator that supplies electric power to a load including a voltage accumulating means, an inverter that applies AC control voltage to armature winding of the generator from the voltage accumulating means, and a controller that controls a phase of control voltage applied to... Agent: Pearne & Gordon LLP

20090102438 - Useful improvements in the art of 3-phase electronic tap changer commutation device: The invention is for a 3-phase electronic tap changer commutation device to be utilized in electronic regulators, and more particularly to 3-phase alternating current (AC) electronic tap-changing voltage, current or phase correcting regulators. The present invention provides a specific transformer winding topology and commutation technique that improves performance and reduces... Agent: Baker & Hostetler LLP

20090102439 - Step-up dc/dc voltage converter with improved transient current capability: A DC/DC voltage converter includes an inductive switching voltage regulator and a capacitive charge pump connected in series between the input and output terminals of the converter. The charge pump has a second input terminal connected to the input terminal of the converter. This reduces the series resistance in the... Agent: Patentability Associates

20090102440 - Buck-boost switching voltage regulator: A buck-boost switching regulator includes two buck switches and two boost switches. Two ramp voltages VY and VY are generated. The voltage VY is compared to a voltage VEA1 that is proportional to the output of the switching regulator. This defines the duty cycle of the two buck switches. The... Agent: Advanced Analogic Technologies

20090102441 - Dc to dc converter: A DC to DC converter comprising: an inductor; a plurality of switches for controlling current flow in the inductor such that the inductor is connected to a supply in a first phase of operation such that the inductor receives energy from the supply, and such that the inductor is connected... Agent: Wolf Greenfield & Sacks, P.C.

20090102442 - Power supply device for usb: A power supply adapter with USB connectors includes a housing with a plurality of USB connectors being exposed on the surface thereof, and a power supply device being provided in the housing. The power supply device is connected with an input power source and includes a load detection circuit for... Agent: Hdls Patent & Trademark Services

20090102444 - Dc-dc converter: A DC-DC converter, which controls the output voltage supplied to a load at a desired magnitude by performing on/off control of the input voltage using a switch, includes: an error amplifier for outputting the difference voltage between the output voltage and a preset reference voltage; and a plurality of phase... Agent: Rossi, Kimms & Mcdowell LLP.

20090102443 - H-bridge pulse generator: A new type of circuit for driving an electromagnetic acoustic transducer (EMAT) which does not employ push-pull technology using a transformer but instant uses a novel circuit employing a series of Mosfet switches to correct all the disadvantages of using a transformer.... Agent: James W. Hiney, Esq.

20090102446 - Digital controlled power supply: In a digital controlled power supply including a digital controller for generating a PWM signal which is used to turn on and off a switching element to obtain an output voltage for a load based on an input voltage, the digital controller includes an AD converter for receiving an analog... Agent: Antonelli, Terry, Stout & Kraus, LLP

20090102445 - Switching dc-dc converter and oscillator: A switching DC-DC converter includes: an output voltage detecting unit configured to detect a DC output voltage; an error amplifying unit configured to compare the detected output voltage and a reference voltage and configured to supply an amplified error signal between the detected output voltage and the reference voltage to... Agent: Wilmerhale/dc

20090102447 - Constant-on-time power-supply controller and related system and method: A constant-on-time power-supply controller includes an adder and a control circuit. The adder generates a sum of a sense voltage and a regulated output voltage generated by a filter inductor. The sense voltage is generated by a sense circuit that sources a current to the filter inductor while the inductor... Agent: Graybeal Jackson LLP

20090102448 - Voltage regulator and method for generating indicator signal in voltage regulator: The present invention discloses a voltage regulator which generates a control signal to convert an input voltage to an output voltage, the voltage regulator comprising: a regulator module for generating the control signal according to comparison between a signal representative of the output voltage and a signal representative of a... Agent: Tung & Associates / Randy W. Tung, Esq.

20090102449 - Power supply device with voltage converter circuit: A power supply device with voltage converter circuit comprises a power supply device, a boost loop, a buck loop, and a control unit. The power supply device supplies power by any means. The boost loop is used to step up the voltage of power output by the power supply device.... Agent: Nikolai & Mersereau, P.A.

20090096432 - Loading reduction device and method: An active loading-reduction device is provided for a circuit. The circuit has functional circuitry coupled to a terminal to receive an alternating voltage. The circuit also has an electrostatic discharge protector that is coupled to the terminal. The active loading-reduction device includes active circuitry that is adapted to be coupled... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090096433 - Ldo with large dynamic range of load current and low power consumption: An electronic device has an LDO regulator for varying loads. The LDO regulator includes a primary supply node coupled to a primary voltage supply. An output node provides a secondary supply voltage and a load current. A bias current source generates a bias current. A gain stage coupled to the... Agent: Texas Instruments Incorporated

20090096434 - Nmosfet-base linear charger: In an NMOSFET-base linear charger, a pair of common gate charging NMOSFET and sensing NMOSFET have their sources coupled together or virtually shorted to each other, so that these two NMOSFETs have a same gate-source voltage and thereby the sensing NMOSFET reflects the drain-source current of the charging NMOSFET on... Agent: Rosenberg, Klein & Lee

20090096436 - Dc-dc converter: A DC-DC converter includes a series circuit of a main switch and a choke coil and an output capacitor connected to one end of the series circuit and outputs a DC voltage from the one end of the series circuit. A first MOS transistor is connected in parallel to the... Agent: Rabin & Berdo, PC

20090096435 - Layout schemes and apparatus for high performance dc-dc output stage: A layout method that enables a high power switch mode voltage regulator integrated circuit to generate a large output current and achieve substantially low switching loss is disclosed. The layout method includes forming an array of switching elements on a semiconductor die, each switching element including a plurality of discrete... Agent: Perkins Coie LLP Patent-sea

20090096437 - Automatic power supply converting circuit: An automatic power supply converting circuit includes a live input terminal, a neutral input terminal, a relay, a regulator, a voltage divider circuit, an identifying circuit, a switch circuit and a voltage doubling circuit. The live input terminal and the neutral input terminal are configured for receiving a first alternating... Agent: PCe Industry, Inc. Att. Steven Reiss

20090096438 - Voltage control circuit: A voltage control circuit accepts an input voltage and produces a regulated output voltage. Embodiments provide improved responsiveness to variations in input voltage, load current, and ambient temperature. Exemplary embodiments include an NPN transistor connected between the input and output terminals, which is controlled by a feedback circuit. In an... Agent: Taft, Stettinius & Hollister LLP

20090091304 - Control circuit for multi-phase, multi-channels pfc converter with variable switching frequency: A switching control circuit for multi-phases PFC converters is provided. It includes a PFC-control circuit coupled to receive a first-inductor signal and a feedback signal for generating a first-switching signal. The first-switching signal is utilized to switch the first inductor for power factor correction. A phase-detection circuit detects the first-switching... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090091305 - Linear regulator: A regulator comprising a linear regulator. The linear regulator may comprise a preamplifier, a first radio frequency (RF) transistor and a second radio frequency (RF) transistor. An output of the preamplifier stage may be provided to a biasing terminal of the first RF transistor and a biasing terminal of the... Agent: K&l Gates LLP

20090091307 - Power supply circuit and method for adjusting output voltage therein: A power supply circuit and a method for adjusting an output voltage therein are provided. The power supply circuit includes a regulator having an input terminal receiving an input voltage, an output terminal outputting an output voltage and a regulating terminal, a voltage divider coupled between the output terminal and... Agent: Volpe And Koenig, P.C.

20090091306 - Semiconductor integrated circuit device and regulator using it: A semiconductor integrated circuit device (IC1) comprises a semiconductor chip (CHIP1), a first frame lead (FR1), and a second frame lead (FR2). The semiconductor chip (CHIP1) includes common-base transistors (P1, P2), pads (T11, T12) connected to the respective emitters of the common-base transistors (P1, P2), pads (T21, T22) connected to... Agent: Fish & Richardson P.C.

20090091308 - Switching regulator and electronic device having same: A switching regulator (20) comprises a reverse current detecting transistor (P2) having a gate and a source between which a voltage across a synchronous-rectification transistor (P1) is applied. When the reverse current detecting transistor (P2) comes into an open or closed state (on-state) indicating detection of a reverse current during... Agent: Fish & Richardson P.C.

20090091309 - Off-line converter with digital control: A regulation circuit for use in DC to DC converter is disclosed. One such regulation circuit includes a feedback circuit to be coupled an energy transfer element output to receive a feedback signal to indicate whether the energy transfer element output is above or below a threshold level. A control... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090091310 - Apparatus and methods for powering remote devices under dynamic source and load conditions: Power provided to a remote network component is regulated. A monitoring circuit estimates a DC input voltage that is received from a central network supply. A control circuit compares the DC input voltage to a threshold DC voltage value to determine if the DC input voltage exceeds the threshold DC... Agent: At&t Legal Department - Mb Attn: Patent Docketing

20090091311 - Circuit for generating reference voltage of semiconductor memory apparatus: A reference voltage generating circuit in a semiconductor memory apparatus comprises a driving control signal generating unit configured to generate a driving control signal according to a temperature variation, wherein the driving control signal generating unit is enabled in response to a power-up signal, a driving unit configured to control... Agent: Baker & Mckenzie LLP Patent Department

20090085532 - Dc-dc converter: A DC-DC converter providing a DC output voltage at an output node. The DC-DC converter comprises an output stage, a digital controller, and a controller. The output stage comprises a pull-up circuit having a control terminal and coupled between a first fixed voltage and a internal node, a pull-down circuit... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090085533 - Parallel supply current sharing using thermal feedback: The current sharing using thermal feedback, in accordance with various embodiments, includes controlling an amount of current output from each of a plurality of power modules based on the thermal characteristics of each respective power module.... Agent: Harness, Dickey & Pierce, P.L.C

20090085534 - Wideband low dropout voltage regulator: Method and apparatus for regulating a supply voltage. Native NMOS source followers may be stacked and coupled to a supply a regulated voltage to a load. The gates of the native NMOS source followers are coupled to the outputs of internal regulators. The internal regulators may also contain stacked NMOS... Agent: Qualcomm Incorporated

20090085535 - Dc/dc boost converter with pulse skipping circuitry: A DC to DC boost converter circuit receives a DC input voltage and converts it to a DC output voltage at a different voltage level than the DC input voltage. The DC to DC boost converter includes a switching power converter for receiving the input voltage on an input and... Agent: Howison & Arnott, L.l.p

20090085536 - Systems and methods for improved coupled inductor topology efficiency utilizing a light load signal: Embodiments include systems and methods for voltage regulation in a coupled inductor topology. Embodiments comprise a switching voltage regulator that is responsive to a light load signal from the device to which power is supplied. When the light load signal indicates that the device is not in a light load... Agent: Schubert, Osterrieder & Nickelson, PLLC C/o Intellevate, LLC

20090085537 - Power supply apparatus: A first booster circuit and a second booster circuit include input capacitors, reactors, diodes, switch elements, and output capacitors, and are arranged to be symmetric to each other on a positive side and a negative side. The reactors are magnetically coupled to each other. With such configuration, the switch elements... Agent: Buchanan, Ingersoll & Rooney PC

20090085538 - Power supply device, electronic device, and a/d converter used for them: In the power supply apparatus which performs voltage conversion of an input voltage (Vbat), with a predetermined set voltage as a target value, and outputs the converted voltage, a boost ratio setting unit sets a boost ratio (XCP) of the charge pump circuit based on the input voltage (Vbat) and... Agent: Cantor Colburn, LLP

20090085542 - Drive system for power semiconductor device: An output signal from a driver is provided to an output unit which includes first and second transistors to output a drive signal for driving a power device. A control signal is supplied from a control signal supply. The control signal indicates an enabled state and a disabled state to... Agent: Amin, Turocy & Calvin, LLP

20090085539 - Feedback and comparison apparatus and dc-dc voltage converter: A feedback and comparison apparatus applicable to a DC-DC voltage converter is provided. The feedback and comparison apparatus includes a comparator and a voltage feedback circuit. The voltage feedback circuit includes a first voltage dividing component and a second voltage dividing component. The comparator compares a feedback voltage with a... Agent: J C Patents, Inc.

20090085541 - Semiconductor device, method for fabricating the same, and transformer circuit using the same: A semiconductor device, a method for fabricating the same, and a transformer circuit using the same are disclosed. The semiconductor device includes a trench metal oxide semiconductor (MOS) transistor for switching a load of current supplied from a power source, and a boost controller for controlling driving of the trench... Agent: The Law Offices Of Andrew D. Fortney, Ph.d., P.C.

20090085543 - Variable output voltage power converter: A method of generating at least a first voltage and a second voltage in a power converter including at least one DC-DC converter is disclosed. The method includes operating the DC-DC converter as a full-bridge converter to generate the first voltage and operating the DC-DC converter as a half-bridge converter... Agent: Harness, Dickey, & Pierce, P.l.c

20090085540 - Voltage rising/falling type switching regulator and reverse current prevention method: A voltage rising/falling type switching regulator includes an inductor, a voltage-falling switching element, a voltage-falling rectifier element, a voltage-rising switching element, a voltage-rising synchronous rectification switching element, a control circuit part, and a reverse current detecting part. The control circuit part is arranged so that the voltage-falling switching element is... Agent: Dickstein Shapiro LLP

20090085544 - Current regulator and method for regulating current: A regulator and a method for regulating a current through a load. The regulator may include, for example, a first circuit portion configured to alternately apply and remove a voltage across the load in accordance with a first signal, the voltage causing a current to flow, and a second circuit... Agent: Banner & Witcoff, Ltd. Attorneys For Client 007052

20090085545 - Voltage regulator: In some implementations, a system includes a low-power voltage regulator that can switch between three power modes: a power shutdown mode, a low power mode, and a higher power mode. The system includes a selector coupled to the voltage regulator to switch between the low power mode and the higher... Agent: Fish & Richardson P.C.

20090085546 - Fast transient step load response in a power converter: A method of controlling a power converter having at least one switching device for supplying an output voltage and a load current to a load is disclosed. The method includes sensing the output voltage and sensing the load current. The method further includes controlling a duty cycle of the switching... Agent: Harness, Dickey, & Pierce, P.l.c

20090085547 - Switching power supply unit: A step-up switching power supply unit for generating a predetermined output voltage through a feedback control of its output voltage based on a first detection voltage indicative of the output voltage. The power supply unit is adapted to monitor a second detection voltage associated with the output voltage that is... Agent: Hogan & Hartson L.L.P.

20090085548 - Converter circuit and method for operating such a converter circuit: A converter circuit is specified in which, in order to avoid losses to the greatest possible extent, a first inductance is connected in series into the connection of a DC voltage source of the converter circuit to a first switch of the converter circuit, and in which, moreover, a second... Agent: Buchanan, Ingersoll & Rooney PC

20090085549 - Bandgap reference circuit with reduced power consumption: A bandgap voltage reference circuit and methods for generating a bandgap reference voltage are disclosed. An operational amplifier receives first and second input voltages from a first and second current path, respectively. A buffer stage is coupled to an output of the operational amplifier and generates third and fourth voltages... Agent: Qualcomm Incorporated

20090085550 - Constant current source circuit: A constant current source circuit is constituted of a control voltage generation section which detects the output voltage at the output terminal so as to generate a control voltage, a reference current adjustment section which adjust a reference current based on the control voltage, and a current mirror section which... Agent: Mcginn Intellectual Property Law Group, PLLC

20090085551 - Circuitry and method for monitoring a supply voltage: A method for monitoring the supply voltage of an electronic device includes the steps of: determining an operating condition of the electronic device, adjusting a plurality of reference voltages dependent on the operating condition of the electronic device, wherein each of the plurality of reference voltages is adjusted at a... Agent: Infineon Technologies Ag Patent Department

20090085552 - Power management using dynamic embedded power gate domains: In some embodiments of the invention, a processor with a power management scheme using dynamically switchable embedded power gates.... Agent: Intel Corporation C/o Intellevate, LLC

20090085553 - Reconfigurable battery pack: In some embodiments, a system comprises a voltage regulator having two or more inputs with each having its own input voltage level and at least one switch to select between the input voltage levels, a configurable battery pack comprising at least two cells and at least one switch capable of... Agent: Caven & Aghevli LLC C/o Cpa Global

20090085554 - Power supply circuit for motherboard: A power supply circuit for a motherboard includes a first resistor, a second resistor, a Schottky diode, and a direct current (DC) voltage source. The Schottky diode includes a first anode, a second anode, and a cathode. The first anode of the Schottky diode is respectively coupled to terminals of... Agent: PCe Industry, Inc. Att. Steven Reiss