Electricity: power supply or regulation systems inventions 10/09

20090243561 - Method of power factor correction: A method of power factor correction without using current sensing or a multiplier is disclosed. A generated predictive pulse is used to charge and discharge a PFC inductor in such a way that the current in the PFC inductor has a similar phase angle as the input AC voltage. Each... Agent: Rosenberg, Klein & Lee

20090243562 - Bias voltage converter: A method of generating a bias voltage in a circuit, the circuit including an inductor element including a first inductor node and a second inductor node, the inductor element to output an inductor current, a first capacitor associated with the second inductor node, a diode provided between the first capacitor... Agent: Mcginn Intellectual Property Law Group, PLLC

20090243564 - Electric current monitoring device: An electric current monitoring device is provided to be used in conjunction with a measuring instrument that converts a physical quantity measured thereby to a signal current and outputs the signal current to a two-wire transmission line. The electric current monitoring device includes an electric current detector inserted in the... Agent: Frishauf, Holtz, Goodman & Chick, PC

20090243565 - Method and apparatus for detecting end of start up phase: A PSE configured to determine the end of the start up phase at the PD responsive to a condition of the voltage at the PSE output. In one particular embodiment, the startup phase end is determined responsive to a PSE output voltage within a predetermined range of the PSE input... Agent: Microsemi Corp - Amsg Ltd.

20090243563 - Power supply circuit and test apparatus: Provided is a power supply circuit that supplies power to a load, including a power supply section that outputs a power supply current, a driver section that receives the power supply current from the power supply section and supplies the load with a load current that is consumed by the... Agent: Jianq Chyun Intellectual Property Office

20090243566 - Converter arrangement and method for preparing a converted signal: A converter arrangement includes a converter device (200) with a clocked operating mode and a non-clocked operating mode, having a signal input (Si), a control input (Se), and a signal output (So), and a control device (100) for controlling the converter device (200) with a control signal of a constant... Agent: Cohen, Pontani, Lieberman & Pavane LLP

20090243567 - Voltage control circuit: Provided is a voltage control circuit which suppresses a calorific value that generates when short-circuit fault occurs even if a voltage value of an input voltage is large. At the time of short-circuit fault, an additional control voltage Va whose voltage value becomes larger when the voltage value of the... Agent: Brinks Hofer Gilson & Lione/seiko Instruments Inc.

20090243568 - Method and apparatus for synchronous boost voltage regulators with active negative current modulation: A switch-mode synchronous boost voltage regulator is disclosed that includes a boost voltage regulator and an active current modulator. The active current modulator detects a negative current flowing through the high-side switch during a light load condition. When the negative current is detected, the active current modulator is operable to... Agent: Perkins Coie LLP Patent-sea

20090243569 - Method and apparatus for synchronous buck with active negative current modulation: A circuit is disclosed that includes a buck voltage regulator electrically coupled to an active current modulator. The active current modulator is operable to detect a negative current in the low-side switch of the buck voltage regulator circuit during a light mode operation. Whenever the negative current is detected, the... Agent: Perkins Coie LLP Patent-sea

20090243570 - 5 volt tolerant voltage regulator: A voltage regulator circuit comprises an error amplifier for generating an error signal responsive to a reference voltage in a feedback signal. A feedback circuit provides the feedback voltage signal to the error amplifier and a driver circuit provides regulated output voltage responsive to the input voltage in the error... Agent: Howison & Arnott, L.l.p

20090243571 - Built-in self-calibration (bisc) technique for regulation circuits used in non-volatile memory: A reference voltage regulation circuit (143) is provided in which one or more input voltage signals (Vref, Vref′) are selectively coupled to a configurable amplifier (114) which is coupled through a sample and hold circuit (120) to a voltage follower circuit (122) which is coupled in feedback to the configurable... Agent: Hamilton & Terrile, LLP - Freescale

20090243573 - Compound power supply: A method of supply power to receive and provide a 10V input, 5V output with a continuous load of 1 A load current and a pulse load duration of 2 ms and a pulse load of 10 A load current, in a power supply including a switching regulator configured to... Agent: Mcginn Intellectual Property Law Group, PLLC

20090243576 - Electronic device, detection circuit and voltage control method: A voltage control method includes producing an error signal based on a difference between a reference signal and an adaptor voltage and an adaptor current corresponding to the adaptor voltage, regulating, based on the error signal, the adaptor voltage, comparing a reference voltage to a voltage proportional to a potential... Agent: Arent Fox LLP

20090243574 - Internal combustion engine controller: An internal combustion engine controller comprises a booster coil connected to a battery and a booster capacitor. A switch element is connected to the booster coil to control the passage of current through the booster coil and an interruption of the current. The booster capacitor accumulates electrical energy generated with... Agent: Crowell & Moring LLP Intellectual Property Group

20090243572 - Power supply with digital control loop: A switching regulator apparatus includes an inductor coupling an input node to a switching node. A first capacitor couples the switching node to a diode node. A first diode couples the diode node to a common node. A second diode couples the diode node to an output node. A second... Agent: Davis & Associates

20090243575 - Semiconductor device and power supply using the same: A semiconductor device for control applied to a constant-voltage power supply device includes a digital-analog converter circuit which outputs a reference voltage corresponding to a value of a first register with taking an output voltage of a reference voltage source as a criterial reference voltage, and generates a control signal... Agent: Mattingly & Malur, P.C.

20090243578 - Power supply with digital control loop: One embodiment of a power supply apparatus includes a switching regulator generating an output voltage VOUT at an output node from an input voltage VIN at an input node in accordance with a pulse width modulated signal having a nominal frequency of fs. A pulse width modulator provides the pulse... Agent: Davis & Associates

20090243577 - Reverse current reduction technique for dcdc systems: The purpose of the present invention is to provide a method for switching devices that enables the prediction of when a reverse current condition will occur regardless of voltage-mode or current-mode switching regulator. According to the present invention, the reverse current reduction technique is realized by implementing a circuit which... Agent: Greenblum & Bernstein, P.L.C

20090243579 - Dcdc converter with soft-startup and soft-transition for adjustable output voltage: A method and exemplary apparatus that incorporate soft-start circuit together with adjustable output voltage control are introduced. By implementing a gradual increment of voltage steps/fast decrement, it can totally eliminate overshoot and limit in-rush current significantly at the initial startup and output voltage transition that happens after startup.... Agent: Greenblum & Bernstein, P.L.C

20090243580 - Method of forming a power supply controller and structure therefor: In one embodiment, a power supply controller is configured to select either an error signal or a variable reference signal to control an on-time of the switching output signal of the power supply controller.... Agent: Semiconductor Components Industries, LLC Intellectual Property Dept. - A700

20090243581 - Electrical outlet device: An electrical outlet device is provided, the device operable to produce a step-down voltage to an electrically powered system. The electrical outlet device can include a housing, a power inlet electrical plug that extends from the housing and at least one power outlet electrical socket that is connected in parallel... Agent: Gifford, Krass, Sprinkle,anderson & Citkowski, P.c

20090243582 - Phase-cut dimming circuit: Methods, systems, and devices are described for sensing a phase-cut dimming signal and outputting a control signal compatible with a switching power circuit. Embodiments of the invention generate at least one of a low-frequency pulse-wave-modulated control signal, an analog output control signal, or a digital (e.g., higher-frequency pulse-wave-modulated) output control... Agent: Townsend And Townsend And Crew, LLP