Electricity: power supply or regulation systems inventions 02/07

20070040533 - Methods and devices for input waveform control in switching power supplies: The invention recognizes that filter size can be reduced substantially as power factor is permitted to deviate below unity in systematic ways. Preferred methods of the invention provide specific, computable waveforms that permit use of a minimum filter size given a desired target power factor.... Agent: Greer, Burns & Crain

20070040534 - System and method for power conversion: A power converter system is provided for supplying power to an electrical load. The power converter system includes a power converter circuit adapted to perform an AC to DC power conversion and an active clamp circuit coupled to the power converter circuit for regulating DC bus voltage overshoots. The power... Agent: General Electric Company (pcpi) C/o Fletcher Yoder

20070040535 - Method for analyzing power distribution system and related techniques: The methodology includes a single excitation analysis, a multi-excitation analysis, and a simultaneous switch noise, SSN, analysis. A chip connects to the PDS at a plurality of power ports formed by pads for obtaining biasing voltage and current from those power ports. The single excitation analysis includes respectively making each... Agent: North America Intellectual Property Corporation

20070040536 - Dc to dc converter with reference voltage loop disturbance compensation: A controller for a DC to DC converter with reference voltage loop disturbance compensation. The controller may include an error amplifier configured to receive a first signal representative of an actual output voltage of the DC to DC converter and a reference signal representative of a desired output voltage of... Agent: Grossman, Tucker, Perreault & Pfleger, PLLC

20070040538 - Dc/dc converter with improved stability: The DC/DC converter according to one embodiment includes a switch, an inductor, a capacitor, a resistor, and a voltage divider. The switch is coupled to the input voltage. The inductor is used for coupling the first switch to an output node of the DC/DC converter so as to generate the... Agent: Wagner, Murabito & Hao LLP

20070040537 - Pwm/burst mode switching regulator with automatic mode change: A switching regulator automatically operates in pulse width modulation (“PWM”) mode for high load currents and in burst mode for low load currents. The switching regulator includes a pair of switches to provide a regulated current to a load. The switching regulator further includes a multi-input comparator. A first input... Agent: Sterne, Kessler, Goldstein & Fox PLLC

20070040540 - Method and apparatus for controlling power drawn from an energy converter: Methods, apparatus, media and signals for controlling power drawn from an energy converter to supply a load, where the energy converter is operable to convert energy from a physical source into electrical energy. Power drawn from the energy converter is changed when a supply voltage of the energy converter meets... Agent: Christensen, O'connor, Johnson, Kindness, PLLC

20070040539 - Method and apparatus for controlling power drawn from an energy converter: A computer readable, media and signals for controlling power drawn from an energy converter to supply a load, where the energy converter is operable to convert energy from a physical source into electrical energy. Power drawn from the energy converter is changed when a supply voltage of the energy converter... Agent: Christensen, O'connor, Johnson, Kindness, PLLC

20070040541 - Power control device: Provided is a power control device comprising; a power input portion to which an alternating current is supplied; a plurality of diodes for rectifying a power supplied from the power input portion; a first capacitor unit and a second capacitor unit for charging/discharging a power rectified in the diode to... Agent: Birch Stewart Kolasch & Birch

20070040542 - Low emc/emi emissions' gate driver for wide supply voltage ranges: A method controls a power MOS transistor having a control terminal and a load path, the load path connected in series with a load between voltage supply terminals, wherein a power supply voltage between the voltage supply terminals imposes a load voltage across the load and a load path voltage... Agent: Maginot, Moore & Beck Chase Tower

20070040543 - Bandgap reference circuit: A bandgap circuit includes a current mirror that generates a proportional to absolute temperature current at an output node that outputs the bandgap reference voltage. A first current path including a first resistor is coupled between the output node and a first bipolar transistor. The second current path including a... Agent: Avago Technologies, Ltd.

20070035280 - Power-supply semiconductor integrated circuit, power-supply semiconductor integrated circuit system, development assisting system for power-supply circuit, and program and storage medium therefor: There is provided a power-supply platform IC for realizing a parameter-deciding power-supply circuit, which, in order to decide a parameter of a power-supply circuit that supplies power to an electronic circuit IC (load), is connected to the electronic circuit IC (load) in place of the power-supply circuit. The power-supply platform... Agent: Edwards & Angell, LLP

20070035281 - Switching regulator: The present invention provides a switching regulator having good stability compatible with a good response and an enhanced protection function. A first capacitor is placed between an output end of an inductor to generate an output voltage and a ground potential. From input voltage, a current is supplied to the... Agent: Miles & Stockbridge PC

20070035282 - Switch mode power supply and a method for controlling such a power supply: The present invention relates to a switch mode power supply comprising an input, an output and an intermediate circuit between the input and the output. The intermediate circuit is provided with a voltage source. A current source is provided between the positive and negative pole of the output, said current... Agent: Donald S Dowden Cooper & Dunham

20070035283 - Switching regulator with slope compensation independent of changes in switching frequency: Compensation for a switching regulator is attained by developing a compensation signal for a switching regulator that is independent of changes in the switching frequency. The regulator operational frequency is established in accordance with a repetitive ramp signal of constant slope and adjustable frequency. The voltage of the ramp signal... Agent: Mcdermott Will & Emery LLP

20070035284 - Switch mode power converter: A load line regulated switched-mode power converter supplies an output voltage (Vo) and an output current (Io) to a load (Zo). The power converter comprises an inductor (L), a switch (SW2) coupled to the inductor (L), a first impedance (Z1, Rs, Rcu), a second impedance (Z2, Rs), and a power... Agent: Philips Electronics North America Corporation Intellectual Property & Standards

20070035285 - Methods and apparatus for maintaining an approximate constant current output characteristic in a switched mode power supply: A regulator circuit maintaining an approximate constant current output characteristic. In one aspect, a disclosed regulator controls a switch that has a current limit threshold. A supply terminal and feedback terminal of the regulator are connected together as a control terminal such that a shunt regulator current is the control... Agent: Blakely Sokoloff Taylor & Zafman

20070035286 - Bandgap reference voltage circuit: A bandgap reference voltage circuit is provided, in which an additional resistor as well as a transistor is utilized to prevent the source-drain voltage of a metal oxide semiconductor field effect transistor electrically connected to an output terminal of the bandgap reference voltage circuit from falling into the triode region.... Agent: Volpe And Koenig, P.C.

20070035287 - Power converter having airplane power source detector: A power converter having an aircraft power source detector adapted to limit the amount of power that can be drawn by the power converter when utilized in an aircraft. The power converter may detect an artifact of the aircraft power source, such as the 400 Hz ripple noise on an... Agent: Jackson Walker LLP

20070029979 - System and method of providing power: Circuits and methods of providing power to an electric load are disclosed. The method includes the steps of, for example, generating power via at least first and second parallel power supplies, in response to the first power supply exhibiting an over-voltage, disabling a reverse current threshold on the second power... Agent: Hewlett Packard Company

20070029980 - External signal detection circuit and real-time clock: An external signal detection circuit includes an input port, to which a first end of a circuit including a pull-up resistor connected in series with a first switch portion is connected, the input port receiving an input of an external signal; an input detection portion connected to the input port... Agent: Oliff & Berridge, PLC

20070029981 - Information handling system including a power supply unit with a switching regulator that reduces transient load release: An information handling system (“IHS”) includes a system board and a power supply unit coupled to the system board. The power supply unit includes a switching power regulator. The switching power regulator includes an inductor coupled to an output, a capacitor coupled to the inductor, a switch, coupled to the... Agent: Haynes And Boone, LLP

20070029982 - Pre-charge method for isolated boost converter: A boost control module operates semiconductor switches of a boost converter circuit in an avalanche mode to precharge a boost output capacitor. The boost control module comprises a switching module that complementarily transitions a first semiconductor switch and a second semiconductor switch between ON and OFF states when a current... Agent: General Motors Corporation Legal Staff

20070029983 - Linear voltage regulator with selectable output voltage: A linear voltage regulator provides a selectable output voltage to a load. The linear voltage regulator includes: a regulating circuit including an input terminal for receiving an input voltage, an output terminal for providing an output voltage to a load, and an adjusting terminal; a first resistor and a second... Agent: PCe Industry, Inc. Att. Cheng-ju Chiang Jeffrey T. Knapp

20070029984 - Dc-dc converter: In an up-converter the switching element (S1) is controlled both by means of an integrated control circuit (16) and by means of a secondary winding (L2) on the inductor. High power factor and low THD are achieved while the design of the integrated control circuit is comparatively simple.... Agent: Philips Intellectual Property & Standards

20070029985 - Semiconductor device: In a semiconductor device provided with terminals for external connection, input terminals, power supply terminals and ground terminals are disposed close together on part of one edge portion of two opposing edge portions. Output terminals are disposed in the vicinity of both ends of the one edge portion and on... Agent: Rabin & Berdo, PC

20070029986 - Power supply device for vehicle and method of controlling the same: A power supply device for a vehicle includes a battery serving as a first electric storage device, a battery serving as a second electric storage device, a motor generator driving a wheel, a selection switch selecting one of the first and second electric storage devices and connecting the selected electric... Agent: Oliff & Berridge, PLC

20070029987 - Power factor correction circuit: A power factor correction circuit comprises first and second ac inputs (I1), (I2) for receiving an ac voltage. A rectifier (104) has first and second rectifier inputs (I3), (I4) each connected to a respective ac input (I1), (I2), and first and second rectifier outputs (05), (06) for outputting a dc... Agent: The Boc Group, Inc.

20070024250 - Method and apparatus for controlling the input to 3-phase ac induction motors: A method and apparatus are described for controlling the flow of power in each input line to a three phase AC inductive load in order to reduce the amount of VAR in the system, and thus increase the operational efficiency of the inductive load. Solid state relays are positioned in... Agent: Stainbrook & Stainbrook, LLP

20070024251 - Apparatus and method for continuous conduction mode boost voltage power factor correction with an average current control mode: The continuous conduction mode (CCM) boost voltage power factor correction apparatus with an average-current control mode of the present invention uses resettable integrators to integrate the difference voltage signal outputted from the voltage error amplifier and the input current signal obtained from detection. The integration results are then compared to... Agent: Rosenberg, Klein & Lee

20070024252 - Nonlinear digital control circuit and method for a dc/dc converter: A control circuit for a DC/DC converter has a linear-control loop, which receives a quantity to be controlled and a first reference quantity, and generates a modulation value. A nonlinear modulation unit is activated in presence of a variation of the quantity to be controlled higher than a preset intervention... Agent: Stmicroelectronics Inc. C/o Wolf, Greenfield & Sacks, PC

20070024253 - Multi-phase buck converter: A multi-phase buck converter comprising a plurality of output switch arrangements each comprising a high side switch and a low side switch connected in series across a DC voltage and having a common connection coupled through a respective output inductor to a converter output node at which a converter output... Agent: Ostrolenk Faber Gerb & Soffen

20070024254 - Circuitry for supplying a load with an output current: A circuitry comprises a converter means for generating an alternating current signal from an energy from an energy source, a piezo transformer with an input and an output, wherein the input of the piezo transformer is electrically coupled to the converter means, to receive the alternating current signal as an... Agent: Glenn Patent Group

20070024255 - Switching power supply circuit: Enhancement of the power conversion efficiency and reduction of switching noise of a power supply circuit are achieved. The power supply circuit includes, on the primary side, a composite resonance type converter formed from a current resonance type converter and a partial voltage resonance circuit in combination, and is configured... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20070024256 - Switch-mode multiple outputs dcdc converter: An integrated converter for converting a DC power source into multiple DC output voltages is provided. In the converter, a voltage regulator is selectively coupled to the power source. A control module outputs a timing signal based on a buck/boost signal. A voltage bucking/boosting module bucks or boosts the power... Agent: Jianq Chyun Intellectual Property Office

20070024257 - Control circuit for a dc-to-dc switching converter, and the use thereof for maximizing the power delivered by a photovoltaic generator: A control circuit for a switching DC/DC Converter comprising: an input for an indicator signal indicative of an output current level from said converter; a peak detector for detecting and storing a maximum value of said indicator signal; a comparator element for comparing an instantaneous value of said indicator signal... Agent: Alston & Bird LLP

20070024258 - Switching power supply with voltage limiting device and control method thereof: A switching power supply includes input terminals, which receive a first voltage, and a switching converter stage, provided with a first switching device. The power supply further includes a second switching device, connected between the input terminals and the switching converter stage, and an activation device, associated with the second... Agent: Stmicroelectronics Inc. C/o Wolf, Greenfield & Sacks, PC

20070024259 - Current regulator and method therefor: In one embodiment, a current regulator is configured to form a first signal representative of a current flow through a power switch and to use the first signal to determine an off-time of the power switch.... Agent: Semiconductor Components Industries, LLC Bradley J. Botsch

20070024260 - Dc power supply and integrated circuit device: A DC power supply capable of obviating undue resetting and malfunction of CPU, immediately after starting the operation of a switching regulator, by inputting sleep signals input asynchronously during a switching cycle of the switching regulator. In the DC power supply adapted to apply a DC voltage to an output... Agent: Dickstein Shapiro LLP

20070024261 - Method and apparatus for controlling the charge of a bootstrap capacitor for non-synchronous type dc-dc converter: A method of controlling the charge of the bootstrap capacitor during light load or no load conditions for a non-synchronous type of DC-DC converter consists of bootstrap capacitor voltage detector, light load detector and secondary switch controller. By turning on the secondary switch during the off-time of the power transistor... Agent: Gregory A. Stobbs

20070024262 - Integrated circuit apparatus and method of compensating a current: An integrated circuit comprises a gain stage circuit couple to a compensation circuit. Both the gain stage circuit and the compensation circuit respectively comprise a first current source and a second current source that are subject to the same process variations. A negative feedback circuit is used to generate a... Agent: Avago Technologies, Ltd. C/o Klaas, Low, O'meara & Malkin, P.C.

20070024263 - Apparatus and method of current sharing: A current sharing apparatus and a method thereof are provided. The current sharing apparatus comprises an input terminal, an output terminal, a current-sharing control terminal, a pass transistor, a constant voltage generating unit, a feedback control circuit and a current-sharing control unit. The current-sharing control terminal provides a current-sharing control... Agent: J C Patents, Inc.

20070024264 - System for managing electrical consumption: A system for managing electrical consumption includes a connecting means for connection to an incoming power supply of a facility, for connection in parallel, including a hot line and a neutral line, and at least one ground. The following components are connected between the hot line and the neutral line.... Agent: Kenneth P. Glynn