Electricity: power supply or regulation systems inventions

20090278511 - Method for reducing the reactive power requirement of a fundamental frequency clocked power supply side converter under no load and with low motor loading: The invention relates to a method for reducing the idle current requirement of a base frequency clocked supply side converter (1) on idle and with low motor loads, provided with controllable semiconductors (T1,T2,T3,T4, T5,T6), wherein the base frequency clocking of the semiconductor switches (T1,T2,T3,T4,T5,T6) occurs depending on the desired direction... Agent: Henry M Feiereisen, LLC Henry M Feiereisen

20090278512 - Apparatus, system, and method for controlling a matching network: An apparatus, system and method are described that enable an impedance of a plasma load to be matched with a power generator. In some embodiments the apparatus includes a power output adapted to apply power that is utilized to energize a plasma; a sensor adapted to sample power applied at... Agent: Neugeboren O'dowd PC

20090278513 - Enhancement mode iii-nitride switch with increased efficiency and operating frequency: According to one exemplary embodiment, an efficient and high speed E-mode III-N/Schottky switch includes a silicon transistor coupled with a D-mode III-nitride device, where the silicon transistor causes the D-mode III-nitride device to operate in an enhancement mode. The E-mode III-N/Schottky switch further includes a Schottky diode coupled across the... Agent: Farjami & Farjami LLP

20090278514 - Feedback power control system for an electrical component: A feedback power control system includes: a multiplying unit receiving a work voltage corresponding to a voltage drop of an electrical component, and a feedback voltage corresponding to a work current flowing through the electrical component, and outputting a measuring voltage corresponding to a consumed power of the electrical component... Agent: Schwegman, Lundberg & Woessner, P.A.

20090278515 - Multiple output voltage regulator: A multiple output voltage regulator includes a voltage regulator amplifier, a first device, and a second device. The voltage regulator amplifier includes a first input configured to receive a reference voltage and an output. The first device includes a first terminal, a second terminal, and a control terminal. The control... Agent: Ibm Corporation

20090278516 - transient recovery circuit for switching devices: A transient recovery circuit for switching devices. The transient recovery circuit includes a detecting circuit for detecting a rapid transient in an output voltage of a switching device by detecting a rate of the output voltage transient; an auxiliary controlling circuit in a feedback loop of the switching device for... Agent: Evergreen Valley Law Group

20090278517 - Regulator with device performance dynamic mode selection: A voltage regulator device and accompanying methods are provided for providing efficient voltage regulation to an electronic device. Efficient regulator 400 receives an input voltage on VIN from a battery or some other power supply at node VIN and supplies a stable regulated voltage to load device 404 at node... Agent: The Mueller Law Office, P.C.

20090278519 - Bus loop power interface and method: A bus loop power interface (100) is provided according to the invention. The bus loop power interface (100) comprises a voltage control module (110) receiving a loop voltage VLOOP and generating a predetermined supply voltage VSUPPLY, an impedance control module (120) coupled to the voltage control module (110), with the... Agent: The Ollila Law Group LLC

20090278520 - Power converter with capacitive energy transfer and fast dynamic response: A converter circuit and related technique for providing high power density power conversion includes a reconfigurable switched capacitor transformation stage coupled to a magnetic converter (or regulation) stage. The circuits and techniques achieve high performance over a wide input voltage range or a wide output voltage range. The converter can... Agent: Daly, Crowley, Mofford & Durkee, LLP

20090278518 - Voltage regulator: A voltage regulator is disclosed that includes first and second output transistors each outputting a current from the input terminal to the output terminal of the voltage regulator; and a control circuit part controlling the operations of the first and second output transistors to equalize a voltage proportional to an... Agent: Dickstein Shapiro LLP

20090278521 - Power supply device and electronic appliance therewith: In a power supply device of the present invention, a clamp circuit increases the upper limit value of an error voltage stepwise after the device is started up. This makes it possible to shorten the rise time of an output voltage and to reduce the maximum current at start-up.... Agent: Fish & Richardson P.C.

20090278522 - Low power method of responsively initiating fast response to a detected change of condition: A voltage signal is monitored in comparison to another voltage signal by a differential amplifier. When the first voltage signal value drops below the second voltage signal value an output signal is boosted in response. The output signal returns to a previous state without boost.... Agent: Michael W. Caldwell

20090278523 - Non-contact power transmission device, power transmission device and electronic apparatus using the same: A non-contact power transmission device for supplying electric power to a secondary coil from a primary coil by electromagnetically coupling the primary coil to the secondary coil, includes a temperature detection element that detects temperature and a detection section that detects rise of temperature based on a first temperature at... Agent: Oliff & Berridge, PLC

20090273323 - Series regulator with over current protection circuit: A series regulator with an over current protection circuit regulates output current at an output terminal by controlling an output transistor. There is a current sense transistor with a conductivity that is dependent on the conductivity of the output transistor. A current limiting transistor is connected between an input power... Agent: Freescale Semiconductor, Inc. Law Department

20090273325 - Current negative-feedback circuit and dc-dc converter using the circuit: A current negative-feedback circuit comprises a current detection unit and a sawtooth-shaped waveform generation unit. The current detection unit comprises a first P-ch MOSFET Q2 and a second P-ch MOSFET Q3 which constitute a current mirror circuit, a current adjustment resistor R4, a current detection resistor R1, and a constant... Agent: Schwegman, Lundberg & Woessner, P.A.

20090273324 - Switching regulator: The output voltage signal of the soft start circuit is set to a step voltage signal which increases or decreases stepwise at a predetermined rate. A changing period of the step voltage signal is set to a predetermined period after a power source is turned ON. The changing period of... Agent: Mattingly & Malur, P.C.

20090273326 - Systems and methods for controlling output currents of power converters: A power converter can include a high-side switch coupled to a power supply terminal and selectively coupled to ground via a conduction path. During an on state duration, the high-side switch can be enabled and the conduction path can be disabled. During an off state duration, the high-side switch can... Agent: Patent Prosecution O2mirco , Inc.

20090273327 - Power supply device, electronic device using the same, and semiconductor device: A linear regulator is provided which stabilizes an input voltage based on a reference voltage source that generates a reference voltage, and the reference voltage generated by the reference voltage. An output voltage of the linear regulator is supplied as a power supply voltage of a switching controller and the... Agent: Cantor Colburn, LLP

20090273329 - Step-down type switching regulator: A pulse signal generating circuit generates a pulse signal having a duty ratio controlled such that the output voltage approaches a reference voltage. A driver circuit generates first and second gate voltages, which are to be respectively applied to the gates of a switching transistor and a synchronous rectifier transistor,... Agent: Cantor Colburn, LLP

20090273328 - Voltage/current control apparatus and method: A voltage/current control apparatus and method are disclosed. The apparatus includes a low-side field effect transistor (FET) having a source, a gate and a drain, a high-side field effect transistor (FET) having a source, a gate and a drain, a gate driver integrated circuit (IC), a sample and hold circuit,... Agent: Joshua D. Isenberg Jdi Patent

20090273330 - Merged ramp/oscillator for precise ramp control in one cycle pfc converter: A one cycle power factor correction converter circuit comprising a switch for controlling a DC output voltage of the converter circuit, the switch being switched by a drive signal having a frequency determined by a clock signal; the converter circuit being provided with a DC input voltage and producing the... Agent: Farjami & Farjami LLP

20090273332 - Fast, efficient reference networks for providing low-impedance reference signals to signal processing systems: Reference network embodiments are provided for use in pipelined signal converter systems. The network embodiments are fast and power efficient and they generate low-impedance reference signals through the use of a complimentary common-drain output stage, at least one diode-coupled transistor inserted between transistors of the output stage, and a controller.... Agent: Koppel, Patrick, Heybl & Dawson

20090273331 - Regulator circuit and car provided with the same: An output transistor is provided between an input terminal and an output terminal. An error amplifier adjusts the gate voltage of the output transistor such that the voltage that corresponds to the output voltage approaches a predetermined reference voltage. A fluctuation detection capacitor is provided on a path from the... Agent: Cantor Colburn, LLP

20090273333 - Power supply with adjustable outputted voltage: A power supply with adjustable outputted voltage includes a casing, a circuit board, a voltage-adjusting knob and a rotary wheel. The casing is provided thereon with a window, and the circuit board is disposed in the casing. The circuit board is electrically connected to AC/DC power input processing circuit in... Agent: Hdls Patent & Trademark Services

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