Electricity: power supply or regulation systems inventions

20090267573 - Power supplies, power supply controllers, and power supply controlling methods: A power supply controller is provided. The power supply controller includes a switching device, an inductor, a comparator, and a sensing device. The switching device is coupled to an input power source and switches according to a comparing result. The inductor is coupled between the switching device and an output... Agent: Wang Law Firm, Inc.

20090267574 - Systems and methods for producing a substantially constant output voltage in a power source boost system: Systems and methods for producing a substantially constant output voltage in a power source boost system are provided. A power supply boost circuit includes an output node for supplying an output voltage, a feed forward loop configured to be coupled to a load and a power source, and a feedback... Agent: Honeywell International Inc. Patent Services

20090267575 - Device and method for detecting zero crossing and voltage amplitude from single pulse signal: A device and method for detecting a zero crossing and voltage amplitude of a commercial power source voltage inputted to an electronic device, from a single pulse signal are disclosed. The apparatus for detecting a zero crossing and a voltage amplitude from a single pulse signal includes: a first calculation... Agent: Mcdermott Will & Emery LLP

20090267576 - Power converter with snubber: A buck or boost converter, which includes a first inductor, a controlled switch, a main diode, and an output capacitor, also includes a snubber circuit to reduce losses. The snubber circuit includes a second inductor in a path in series with the switch and main diode of the converter, a... Agent: Smart & Biggar P.o. Box 2999, Station D

20090267577 - High voltage start-up circuit with constant current control: A high voltage start-up circuit with constant current control applied to a switching mode power converter is provided. The high voltage start-up circuit includes a high voltage junction transistor, a control transistor, a current detecting resistor and a bias resistor. The drain of the junction transistor is connected to a... Agent: Rosenberg, Klein & Lee

20090267578 - Static phase shedding for voltage regulators based upon circuit identifiers: Systems and methods are disclosed that provide static phase shedding techniques to improve the efficiency of multi-phase voltage regulators within information handling systems by selecting the number of active phases for the multi-phase voltage regulators using circuit identifiers (IDs) for circuitry configured to be powered by the multi-phase voltage regulators,... Agent: O'keefe, Egan, Peterman & Enders LLP

20090267579 - Voltage regulator: A voltage regulator with an adaptive bandwidth, including a first buffer chain, a voltage generating unit, a trimming capacitor unit, a second buffer chain, and a control unit. The first buffer chain delays a clock signal using an external voltage as a supply voltage. The voltage generating unit generates a... Agent: Mannava & Kang, P.C.

20090267580 - Dc-dc converter with switchable estimators: A DC-DC converter is provided with a first estimator unit (RAE, RLPF, RHPF) for performing an accurate control signal estimation and a second estimator unit (FEU, ΔVEU) for performing a fast control signal estimation. In addition, a switching unit (SU) is provided for switching to an output of the first... Agent: Nxp, B.v. Nxp Intellectual Property & Licensing

20090267581 - Hybrid switched mode/linear mode power amplifier control: In one aspect of the exemplary embodiments of this invention a method includes determining, based at least in part on a number of resource blocks to be transmitted, where the resource blocks may be spectrally contiguous or spectrally non-contiguous, a ratio of power to be provided by a switched mode... Agent: Harrington & Smith, PC

20090267582 - Self-tuning digital current estimator for low-power switching converters: A switched mode power can use a digital controller to control the switching of the at least one switch of the switched mode power supply. The current through the power inductor can be estimated using a self-tuning digital current estimator.... Agent: Fliesler Meyer LLP

20090267583 - Switching power supply apparatus with current output limit: A switching power supply apparatus with current output limit, which utilizes a voltage sampling controller for sampling the feedback voltage to acquire a knee voltage. Moreover, the knee voltage is computed by the square-root operation and error elimination operation respectively. According to the result of the computing, the switching of... Agent: Rosenberg, Klein & Lee

20090267584 - Transient detection circuit: A transient detection circuit coupled between a first power line and a second power line and including a first control unit, a setting unit, and a voltage regulation unit. The first control unit generates a first control signal. The first control signal is at a first level when an electrostatic... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090267585 - Cascode current mirror circuit, bandgap circuit, reference voltage circuit having the cascode current mirror circuit and the bandgap circuit, and voltage stabilizing/regulating circuit having the reference voltage circuit: A cascode current mirror circuit and a bandgap circuit are provided. The circuits are used together and function as a reference voltage circuit. The reference voltage circuit outputs a reference current resistant to temperature variation and ripple-voltage. Accordingly, a voltage stabilizing/regulating circuit corrects error voltage precisely and promptly, and the... Agent: Law Offices Of Mikio Ishimaru

20090267586 - Circuit method for pulling a potential at a node towards a feed potential: A circuit for pulling a potential at a node towards a feed potential present at a potential feed comprises a first transistor comprising controllable paths and a resistive element, wherein the conductive paths of the first transistor and the resistive element are coupled in series between the potential feed and... Agent: Dickstein Shapiro LLP

20090267587 - Power supply device and switching power supply device: In a driver circuit constructing a switching power supply device that switches power transistors passing a current through a coil by a PWM mode, a current detection transistor, which is smaller in size than the low-potential side power transistor, and a current detection resistor are provided in parallel to the... Agent: Mattingly & Malur, P.C.

20090267588 - Method and apparatus to dynamically control impedance to maximize power supply: An apparatus and method for dynamically controlling impedance to maximize the transfer of energy from energy source(s) to load(s). In a system with a load, an energy source, and a power distribution network (PDN) coupled between the energy source and the load, system conditions and environmental changes of the system... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090261789 - Frequency-changing voltage regulation circuit: The present invention discloses a frequency-changing voltage regulation circuit, which applies to a power supply device that has a booster unit and a power conversion unit. The booster unit modulates an input power and converts the input power into a boosted power. The boost control circuit is coupled to the... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090261790 - Synchronous rectifier post regulator: Methods and apparatus for regulating a synchronous rectifier DC-to-DC converter by adjusting one or more existing synchronous rectifiers in the converter are provided. By regulating an existing synchronous rectifier, the rectifier may function as a modulator for post regulation over a limited range of output voltages suitable for load regulation,... Agent: Patterson & Sheridan, LLP/cisc

20090261793 - Dc/dc power converting apparatus: Three or more circuits, in which series-connected low-voltage and high-voltage side switches including MOSFETs including parasitic diodes are connected across positive and negative terminals of each of smoothing capacitors, are connected in series. One of elementary series circuits, each including a capacitor and an inductor, is disposed between any adjacent... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.

20090261792 - Negative voltage generating device: The negative voltage generating device includes a current interrupting controller, a voltage generating controller, and a negative voltage generator. The current interrupting controller outputs a current interrupting control signal in response to a control signal, which is enabled during the application of a power-up signal. The voltage generating controller compares... Agent: Ladas & Parry LLP

20090261791 - Power converter with power switch operable in controlled current mode: A power converter and method of controlling a power switch therein to improve power conversion efficiency at low output current. In one embodiment, the power converter includes a first power switch coupled to a source of electrical power and a second power switch coupled to the first power switch and... Agent: Slater & Matsil, L.L.P.

20090261794 - Dc-dc converter controller having optimized load transient response and method: A power supply controller (25) is configured to accurately adjust the value of an output voltage of a power supply system (10) responsively to the output voltage increasing to an undesirable value. The controller (25) accurately limits an upper value of the output voltage during a light load condition, and... Agent: Semiconductor Components Industries, LLC Intellectual Property Dept. - A700

20090261795 - Multi-threshold multi-gain active transient response circuit and method for digital multiphase pulse width modulated regulators: Disclosed is a multi-phase pulse width modulated voltage regulator and method in which transient voltage excursions or deviations that exceed the load line voltage by more than a pre-determined amount are detected by an ATR circuit and a correction signal is applied. The correction signal is in the form of... Agent: The Noblitt Group, PLLC

20090261796 - Electric power source system and method for the same: An electric power source system in which a momentary interruption of the electric power supply does not occur when the direction of voltage conversion is switched by a voltage conversion device that is capable of bidirectional voltage conversion. The electric power source system includes a bidirectional switching regulator that selectively... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090261797 - Switching regulator: Provided is a switching regulator which is capable of reducing soft start time when being activated, and prolonging battery life. The switching regulator has a configuration in which a clamp circuit for clamping a reference voltage is provided in a soft start circuit, and a predetermined period of time since... Agent: Brinks Hofer Gilson & Lione/seiko Instruments Inc.

20090261798 - Systems and methods for fast switch turn on approximating ideal diode function: A switching circuit approximating the fast switching characteristics and small forward voltage drop of an ideal diode is provided. The switching circuit may include a voltage multiplier circuit, a reservoir capacitor and a pull up switch configured to be coupled to the control terminal of a semiconductor switch.... Agent: Mcdermott Will & Emery LLP

20090261799 - method and a device for feeding dc power to an amplifier module for a pulsed load: Various embodiments include a method for feeding DC power to an amplifier module for a pulsed load, comprising: providing current pulses from a DC power supply; charging a capacitor configuration in the amplifier module; providing an output voltage via a voltage regulated power supply; feeding current pulses to said load... Agent: Schwegman, Lundberg & Woessner, P.A.

20090261800 - Voltage protection circuit for thin oxide transistors, and memory device and processor-based system using same: Devices, reference voltage generators, systems and methods are disclosed, including an embodiment of a voltage regulator output transistor using a thin gate insulator to provide a low output impedance despite having a semiconductor channel width that is relatively small. The output transistor is protected from damage by a clamping circuit... Agent: Dorsey & Whitney LLP Intellectual Property Department

20090261801 - Low-voltage current reference and method thereof: A low-voltage current reference providing a current being substantially constant with temperature includes a low voltage bandgap, a start circuit coupled to the low voltage bandgap, and a current summer coupled to the low voltage bandgap and to the start circuit. The low voltage bandgap is for providing a constant... Agent: North America Intellectual Property Corporation

20090256533 - Current-level decision device for a power supply device and related power supply device: An current-level decision device for a power supply device includes a reception end for receiving a current sense signal, a reference voltage generator for generating a first reference voltage, a reference voltage correction unit coupled to the reference voltage generator and the reception end for adjusting the reference voltage according... Agent: North America Intellectual Property Corporation

20090256534 - Power supply control method and apparatus: A power supply system including a controller capable of regulating a pulsed output voltage. The power supply system includes a load, a switching circuit connected to the load, and a controller electrically connected to the switching circuit. The controller is adapted to transmit a switching signal to the switching circuit... Agent: Warner Norcross & Judd LLP

20090256535 - Varying operation of a voltage regulator, and components thereof, based upon load conditions: A method for operating a voltage regulator controller, for use in a voltage regulator including coupled inductors, is provided as follows. A first signal is generated for driving a first switch of the voltage regulator. A second signal is generated driving a first switch of the voltage regulator. The voltage... Agent: Fogg & Powers LLC

20090256536 - Integrated switch with internally adjusted conduction time: An apparatus and method of providing a pulse width modulated signal that is responsive to a current are disclosed. An integrated circuit according to aspects of the present invention regulates an output of a power supply and includes a switch coupled to receive an external current. The integrated circuit also... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090256537 - Multiphase voltage regulators and methods for voltage regulation: A multiphase voltage regulator system comprises a microcontroller unit (MCU) including a reference voltage generator, and a timing generator for generating n-phase start timing signals; a load for receiving an output voltage; a comparator comparing the reference voltage and output voltage to generate a comparison result; and at least n... Agent: Squire, Sanders & Dempsey L.L.P.

20090256539 - Circuits and methods for sensing current: Embodiments of the present invention include techniques for sensing current. In one embodiment, a switch in a switching regulator is coupled to a power supply. Input current from the supply is translated into an output current of the switching regulator. A signal corresponding to the output current is generated. The... Agent: Fountainhead Law Group, PC

20090256540 - Low drop-out regulator providing constant current and maximum voltage limit: A low drop-out regulator according to the present invention comprises an unregulated DC input terminal receiving an input voltage. A pass circuit is coupled between the unregulated DC input terminal and a regulated DC output terminal for supplying a power to the regulated DC output terminal. An amplifying circuit controls... Agent: Sinorica, LLC

20090256538 - Power supply module: A power supply module includes an inductor circuit, a switch circuit, a sensor circuit, and a controller. The inductor circuit includes an inductor and a voltage feedback wire returning the terminal voltage of the inductor. The switch circuit is electrically connected to the inductor circuit for driving the inductor circuit.... Agent: Chih Feng Yeh Brian M. Mcinnis

20090256541 - Power sequence technique: Methods, systems, and devices are described for a power-on sequence for a circuit. A sequence generator for an electronic system may control various power domains to enter known states and prevent unwanted states as other domains of the system power-up. Regulator modules may be controlled to remain in an inoperable... Agent: Townsend And Townsend And Crew, LLP

20090256543 - High efficiency bridgeless pfc power converter: A bridgeless PFC power converter comprises a first inductor and a second inductor coupled from a first input-terminal and a second input-terminal to a first transistor and a second transistor. A first diode and a second diode are coupled from the first transistor and the second transistor to an output... Agent: Sinorica, LLC

20090256542 - Power supply circuit: A power supply circuit has a constant voltage circuit, a first MOS transistor, a second MOS transistor, a third MOS transistor, a first voltage dividing circuit that outputs a first divided voltage obtained by dividing the voltage of the output terminal by a first voltage dividing ratio, and a first... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.

20090256544 - Method and apparatus to limit output power in a switching power supply: Techniques are disclosed to adjust a current limit in a switching regulator. One example switching regulator includes a comparator having first and second inputs and an output. The first input of the comparator is adapted to sense a current flow through a switch and the second input of the comparator... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090256545 - Current-level controlling device for a power supply device and related power supply device: A current-level controlling device for a power supply includes a reception end for receiving a current sense signal, a reference voltage generator for generating a reference voltage, an adaptive reference voltage generator, coupled to the reference voltage generator and the reception end, for adjusting the reference voltage according to variation... Agent: North America Intellectual Property Corporation

20090256546 - Motherboard with overclocking and overvolting functions: A motherboard with overclocking and overvolting functions is provided. The motherboard with an overvolting function includes a specified component, a voltage regulator and a micro-controller. The specified component receives an operating voltage. The voltage regulator generates the operating voltage according to a reference voltage. The micro-controller is electrically connected to... Agent: Kirton And Mcconkie

20090256547 - Standby regulator: A standby regulator circuit includes a standby bias circuit and a standby operational amplifier. The standby regulator circuit provides a standby regulated control voltage to a multiplexer. A regular operational amplifier provides a regulated control voltage to the multiplexer. During regular operation, the multiplexer selects the regular operational amplifier and... Agent: Townsend And Townsend And Crew, LLP

20090251114 - Alternating-current power supply device recovering magnetic energy: The present invention relates to an alternating-current power supply device which can improve a power factor of an alternating-current load, realizes low cost and miniaturization, and recovers magnetic energy. The alternating-current power supply device includes a bridge circuit composed of four reverse conducting semiconductor switches, a capacitor that is connected... Agent: International Knowledge Asset Office

20090251115 - Rapid supply voltage ramp: In one embodiment, an apparatus is provided for a system including an integrated circuit coupled to a node to receive a supply voltage and having bypass capacitors coupled in parallel with the integrated circuit to the node. The apparatus comprises a first capacitor, a switch coupled to the first capacitor,... Agent: Mhkkg, PC/apple, Inc.

20090251116 - Method and apparatus for power conversion and regulation: Techniques are disclosed to control a power converter with multiple output voltages. One example regulated power converter includes a an energy transfer element coupled between a power converter input and first and second power converter outputs. A switch is coupled between the power converter input and the energy transfer element... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090251117 - Power converter with improved efficiency: A power converter (10) includes a controller (12) configured to generate a switching signal. A first section (14) is coupled to the controller (12) and has first and second switches (26,30). The first section (14) is configured such that the first and second switches (26,30) operate in an alternating manner... Agent: Ingrassia Fisher & Lorenz, P.C. (fs)

20090251118 - Output device and electronic device provided with same: A switching power supply IC (21) is provided with, in a form integrated into an integrated circuit: a terminal (T2) whereupon an input voltage (Vin) is applied through an inductor (Lex); a terminal (T3) from which an output voltage (Vout) for a loading LED is extracted; a transistor (N1) connected... Agent: Fish & Richardson P.C.

20090251119 - Three chip package: A multi-chip package that includes two power semiconductor devices coupled in a half-bridge arrangement and a driver for driving the two power semiconductor devices.... Agent: Farjami & Farjami LLP

20090251120 - High voltage power supply: There is provided a high voltage power supply capable of reducing voltage stress of a voltage multiplying device. The high voltage power supply includes: a power converter switching on/off and converting an input direct current power into a direct current power having a preset voltage level; and a voltage multiplier... Agent: Lowe Hauptman Ham & Berner, LLP

20090251121 - Method and apparatus providing final test and trimming for a power supply controller: A power supply controller having final test and trim circuitry. In one embodiment, a power supply controller for switched mode power supply includes a selector circuit, a trim circuit, a shutdown circuit and a disable circuit. The trim circuit includes a programmable circuit connection that can be selected by the... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090251122 - Method for dc/dc conversion and dc/dc converter arrangement: A method for DC/DC conversion which comprises the steps of controlling a first switch (10) for coupling a supply terminal (5) to a first terminal (60) of an inductor (2) and a second switch (20) for coupling the first terminal (60) to a ground potential terminal (8). The method further... Agent: Cohen, Pontani, Lieberman & Pavane LLP

20090251123 - Self-referencing voltage regulator: A voltage regulator includes an input terminal for receiving a power input having a first voltage level, and an output terminal for generating a power output. A reference signal having a second voltage level is derived from the first voltage level adjusted with a predetermined offset value for controlling the... Agent: Formfactor, Inc. Legal Department

20090251124 - Circuit for the generation of two symmetrical buses of tension with respect to the negative of the feeding tension: Circuit for the generation of two symmetrical buses of tension with respect to the negative of the feeding tension, comprising supply means able to supply a power step-up circuit comprising an inductor, a switch, a diode and a condenser, an LC filter being arranged in cascade to said power step-up... Agent: Dykema Gossett PLLC

20090251125 - Power supply for portable radiographic detector: A digital radiography detector has a two-dimensional array of photosensors disposed in rows and columns. Multiple signal traces connect to the photosensors and extend in a first direction along the two-dimensional array. A switching power supply is connected to a power source and has first and second storage inductors that... Agent: Carestream Health, Inc.