Electricity: power supply or regulation systems inventions 06/08

20080150496 - Reactive power control apparatus for ac power system: A reactive power control apparatus for an AC power system includes a reactive power compensation device, a compensation capacitor device and a compensation capacitor control device. The compensation capacitor control device includes a detection voltage output circuit which outputs a bus detection voltage after the clearing of a voltage drop... Agent: Buchanan, Ingersoll & Rooney Pc

20080150497 - Power supply voltage reset circuit and reset signal generating method: A power supply voltage reset circuit, provided in an apparatus having an internal circuit capable of adjusting an internal power supply voltage, for resetting the internal circuit when a power supply voltage of the apparatus rises, and includes: a unit that generates an internal power supply voltage reference signal and... Agent: Young & Thompson

20080150498 - Electromagnetic induction switch circuit: An exemplary electromagnetic induction switch includes a coil, a magnet suspended in the coil, a rectification circuit, and a relay-switch. The coil is connected between two input terminals of the rectification circuit. Two output terminals of the rectification circuit are respectively connected to two relay leads of the relay-switch. One... Agent: Pce Industry, Inc. Att. Cheng-ju Chiang

20080150500 - Hybrid dc-dc switching regulator circuit: A switching voltage regulator circuit includes, in part, a latch, a pair of switches, a sensing circuit, an amplifier, a digital control block, and a comparator. The switches are responsive to the latch, and the sensing circuit is responsive to a current flowing through the switch that is on. The... Agent: Townsend And Townsend And Crew, LLP

20080150499 - Voltage regulator for use in nonvolatile semiconductor memory: The invention relates to a voltage regulator for operation of a semiconductor memory device. In embodiments, the voltage regulator includes a standby regulator unit and an active regulating unit. Embodiments of the invention decouple the operation of the standby regulating unit and the active regulating unit of a voltage regulator... Agent: Volentine & Whitt Pllc

20080150501 - Constant voltage regulator for generating a low voltage output: Constant voltage regulator includes an output terminal, an output transistor, an output voltage controller, and a switching circuit. The output terminal outputs a first voltage to an external host apparatus. The output transistor outputs a current in accordance with a signal. The output voltage controller amplifies a difference between a... Agent: Dickstein Shapiro LLP

20080150502 - Voltage reference circuit and method therefor: In one embodiment, a voltage reference circuit is configured to use two differentially coupled transistors to form a delta Vbe for the voltage reference circuit.... Agent: Mr. Jerry Chruma Semiconductor Components Industries, L.l.c.

20080150504 - Switching regulator: A switching regulator includes an input terminal, a first time delay circuit, a first switch circuit, and an output terminal. The input terminal is for receiving an input current. The first time delay circuit is for delaying the input current. The first switch circuit is for receiving a first power-on... Agent: Pce Industry, Inc. Att. Cheng-ju Chiang

20080150505 - Switching regulator and semiconductor device having the same: A switching regulator and a semiconductor device having the same are disclosed, the switching regulator being capable of preventing turn-ON of a switching transistor when the connection between a control circuit controlling the operation of the switching transistor and ground potential is cut off. The switching regulator includes, for example,... Agent: Dickstein Shapiro LLP

20080150503 - Transistor driver circuit of power converter: A transistor drive circuit of a power converter is developed for operating in wide voltage range. It includes an N-type high-side transistor, a P-type high-side transistor and an N-type low-side transistor. A voltage clamp device is connected to the gate of the N-type high-side transistor to limit the maximum output... Agent: Hdsl

20080150508 - Current-mode controlled switching regulator and control method therefor: A current-mode controlled switching regulator and control method therefor. The switching regulator includes input and output terminals, a switching device to switch in accordance with a control signal, an inductor to store charge from an input voltage at the input terminal based on the switching device, a rectifying device to... Agent: Dickstein Shapiro LLP

20080150506 - Power controller having a single digital control pin and method utilizing same: A power regulator having a single digital control pin for controlling the amount of power delivered to a load is provided. The single digital control pin is set to a first logic state for a first predetermined amount of time to specify a first power control function to be executed... Agent: Dorsey & Whitney LLP

20080150507 - Switching regulator: A switching regulator is provided with: a comparator producing a comparison signal by comparing a feedback voltage commensurate with an output voltage with a predetermined reference voltage; an oscillator producing a clock signal at a predetermined frequency; a latch circuit producing a pulse width modulation signal with a desired duty... Agent: Fish & Richardson P.c.

20080150509 - Voltage adjusting system and method for adjusting driving voltage of thermal print head: The present invention discloses a voltage adjusting system and method for adjusting a driving voltage of a thermal print head by utilizing an electronic variable resistor. The voltage adjusting system includes a power converter, a voltage divider, an analog-to-digital converter (ADC), and a controller. The system and method of the... Agent: North America Intellectual Property Corporation

20080150510 - Three-phase alternating current voltage regulator: A three-phase AC voltage regulator is for adjusting a line voltage on transmission lines. The three-phase AC voltage regulator includes a sampling circuit, a reference-voltage circuit, a comparator, a switch, a power supply, and a compensator. The sampling circuit is for sampling the line voltage. The reference-voltage circuit is for... Agent: Pce Industry, Inc. Att. Cheng-ju Chiang

20080150511 - Accurate voltage reference circuit and method therefor: In one embodiment, a voltage reference circuit is configured to use two differentially coupled transistors to form a delta Vbe for the voltage reference circuit.... Agent: Mr. Jerry Chruma Semiconductor Components Industries, L.l.c.

20080150512 - Electronic device: A USB electronic device with a power source loaded therein, which is connected to another USB electronic device via a USB connector, comprises a voltage detection unit that detects a voltage at an identification pin of the USB connector, a power supply control unit that controls connection/disconnection between a power... Agent: Oliff & Berridge, Plc

20080143304 - System and method for controlling microgrid: A system for controlling a microgrid includes microgrid assets and a tieline for coupling the microgrid to a bulk grid; and a tieline controller coupled to the tieline. At least one of the microgrid assets comprises a different type of asset than another one of the microgrid assets. The tieline... Agent: General Electric Company Global Research

20080143305 - Electric power flow control: An apparatus for reactive power compensation in an ac medium voltage power network. The apparatus includes a common connection; a first branch including a first switch, and a first capacitor; and a second branch including a second switch and a second capacitor.... Agent: Venable LLP

20080143306 - Voltage control circuits: A voltage control circuit is provided. The voltage control circuit comprises a control voltage source, a current generating unit, and an output voltage generating unit. The control voltage source inputs a single end control voltage. The current generating unit coupled to the control voltage source and a ground generates a... Agent: Joe Mckinney Muncy

20080143307 - Regulated power supply system and an operating method therefore: A power supply system includes a regulator for receiving an input voltage and producing an output voltage, the regulator including an output device and a controller coupled to the regulator. The controller is configured to monitor at least one operating parameter of the output device and, in response, generate a... Agent: Mcdermott Will & Emery LLP

20080143308 - Power circuit and charge pumping circuit: A power circuit and a charge pumping circuit add one control switch of small size to control a power transistor, and save one switch of large area and one capacitor of large area as compared with a conventional power circuit and a conventional charge pumping circuit. The power circuit includes... Agent: J C Patents, Inc.

20080143310 - Control circuits: A control circuit for controlling a motor. The control circuit includes a control module, a current transformation module and a comparison module. The control module generates a control current and a comparison voltage according to a first current, a first voltage and an input voltage. The current transformation module, coupled... Agent: Joe Mckinney Muncy

20080143309 - Method and apparatus for power conversion and regulation of two output voltages: A power supply converter is disclosed. An apparatus according to aspects of the present invention includes a power supply converter having 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... Agent: Blakely Sokoloff Taylor & Zafman

20080143312 - Internal voltage controllers including multiple comparators and related smart cards and methods: A voltage controller may include a pulse generator and an internal voltage control circuit coupled to the pulse generator. The pulse generator may be configured to generate a control signal in response to at least one of a mode signal and/or an external voltage. The internal voltage control circuit may... Agent: Myers Bigel Sibley & Sajovec

20080143311 - Method and circuit for providing compensations of current mode power converters: A method and circuit for providing compensation of a power converter is proposed. A current sense circuit is coupled to receive a switching current for generating a current signal. A signal generation circuit is developed to generate a first compensation signal and a second compensation signal for adjusting the current... Agent: Rosenberg, Klein & Lee

20080143313 - Adjusting method and device of sensitivity of signal interpretation: A method of adjusting sensitivity of signal interpretation includes the steps of: continuously receiving an input signal; setting a sampling parameter; sampling the input signal according to the sampling parameter to obtain a plurality of sampling signals; judging whether the sampling signals are the same or not; generating a first... Agent: Birch Stewart Kolasch & Birch

20080136381 - Method to provide a higher reference voltage at a lower power supply in flash memory devices: A fast reference circuit having active feedback includes a bias supply circuit and a variable divider circuit connected by an active feedback path to the bias supply circuit, and a comparator circuit connected to the variable divider circuit, the bias supply circuit, and a reference node of the variable divider... Agent: Eschweiler & Associates, Llc National City Bank Building

20080136382 - Reference voltage generator for reduced voltage overshoot in a switch mode regulator at the end of soft-start: The reference voltage generator for a switch mode regulator includes: a reference voltage source; a soft-start voltage generator; and a comparator having a directional offset for comparing an output of the reference voltage source with an output of the soft-start voltage generator. Because of the intentional directional offset, the pass... Agent: Texas Instruments Incorporated

20080136383 - Control circuit for dc-dc converter: A DC-DC converter reducing reverse current and maintaining high conversion efficiency under a light load. The DC-DC converter perform pulse width modulation (PWM) or pulse frequency modulation (PFM) and includes a drive control circuit generating a first drive signal and a second drive signal activating and inactivating a first transistor... Agent: Arent Fox LLP

20080136384 - Capacitor-free linear voltage regulator for integrated controller area network transceivers: A voltage regulator circuit for a CAN transceiver has a preregulator circuit which reduces an input voltage to a maximum predetermined voltage. The preregulator circuit is built with diffused MOS (DMOS) or drain extended MOS (DEMOS) transistors or laterally diffused MOS (LDMOS) transistors that are usable with the higher input... Agent: Texas Instruments Incorporated

20080136385 - Power transmission system: A power transmission system is described. The power transmission system comprises a local power converter, a dedicated power transmission cable and a regulating unit. The power transmission system couples the local power converter to the KVM circuit of the remote KVM device via the dedicated power transmission cable and the... Agent: Madson & Austin

20080136386 - Methods and devices for low noise current source with dynamic power distribution: Systems and methods for increasing driver power dissipation efficiency in a low noise current supply utilizing a power supply and a voltage regulator to power an output current regulator. An analog processing circuit adjusts the voltage drop on the voltage regulator, to make it equal with the voltage drop on... Agent: Grant Anderson LLP C/o Portfolioip

20080136387 - Buck converter with inductor pre-energizing: Circuits and methods to achieve a buck-boost converter, capable to achieve a constant output voltage by pre-charging of an inductor if the input voltage is close to the output voltage has been achieved. The prior art problem of output voltage variations occurring while the input voltage is close to the... Agent: Stephen B. Ackerman

20080136389 - Control circuit for switching regulator: A minimum pulse signal generating circuit generates a minimum pulse signal having a predetermined minimum duty ratio, synchronously with a PWM signal. When the duty ratio of the PWM signal is smaller than the minimum duty ratio, a corrected pulse signal generating circuit fixes the logical level of the PWM... Agent: Cantor Colburn, LLP

20080136390 - Monolithically integrated iii-nitride power converter: A power arrangement that includes a monolithically integrated III-nitride power stage having III-nitride power switches and III-nitride driver switches.... Agent: Ostrolenk Faber Gerb & Soffen

20080136388 - Voltage boosting circuit, voltage boosting/dropping circuit and lcd: A voltage boosting circuit performs variable frequency control that gradually increases frequencies of clock signals from a low frequency to a high frequency during a boosting operation period for which a low output voltage of a DC-DC converter when the power is turned on is boosted up to a predetermined... Agent: F. Chau & Associates, Llc

20080136391 - Digital pulse width modulated power supply with variable lsb: A DC-DC digital pulse width modulated power supply is disclosed for generating a DC regulated output voltage. A digital control node has a digital control voltage disposed thereon for controlling the operation of the supply, wherein the digital control voltage has a substantially zero voltage when the output voltage of... Agent: Howison & Arnott, L.l.p

20080136392 - Method and apparatus for trimming current limit and frequency to maintain a constant maximum power: A method which regulates a power supply. In one aspect of the invention, the method includes switching a power switch of a power supply regulator at an operating frequency (f) during operation of the power supply regulator. A current through the power switch is controlled to keep the current through... Agent: Blakely Sokoloff Taylor & Zafman

20080136393 - Primary-side controlled switching regulator: A switching regulator includes a switching device to switch a transformer from a primary-side to secondary side. A control circuit generates a switching signal for regulating output of the switching regulator. The control circuit includes a first circuit to generate a first signal and a timing signal by measuring a... Agent: Jianq Chyun Intellectual Property Office

20080136394 - Switching control circuit and self-excited dc-dc converter: A self-excited DC-DC converter comprises a switching element that chops a direct-current input voltage; a smoothing circuit that smoothes the chopped voltage to generate a DC output voltage; a switching control signal generation circuit that generates a switching control signal for the on/off control of the switching element by comparing... Agent: Socal Ip Law Group LLP

20080136395 - Methods and apparatus for a spread spectrum switching regulator: A spread spectrum switching regulator generally includes an reactive circuit portion coupled to the input terminal, a switching element coupled to the reactive circuit portion, and a control circuit portion coupled between the switching element and the output terminal. The switching element has a drive signal characterized by a duty... Agent: Ingrassia Fisher & Lorenz, P.c. (fs)

20080136396 - Voltage regulator: A voltage regulator is operated by determining if the voltage output by the voltage regulator is within a desired operating region and adjusting a feedback resistance associated with the voltage regulator when the voltage output by the voltage regulator is outside the desired operating region.... Agent: Coats & Bennett/qimonda

20080136397 - Operating integrated circuit logic blocks at independent voltages with single voltage supply: Methods and apparatus to operate various logic blocks of an integrated circuit (IC) at independent voltages are described. In one embodiment, supply of power to one or more domains in an IC is adjusted based on an indication that power consumption by components of the corresponding domain is to be... Agent: Caven & Aghevli C/o Intellevate

20080136398 - 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

20080136399 - Current sensor: A current sensor includes a sensing circuit for sensing current and supplying indications thereof. The current sensor also includes two or more output terminals coupled to the sensing circuit that alternately supply respective indications of the sensed current according to control signals supplied to the current sensor.... Agent: Zagorin O'brien Graham LLP

20080136400 - Dynamic voltage and frequency management in integrated circuits: This invention discloses a system and method for dynamically managing voltage and frequency in an integrated circuit (IC), comprising a plurality of ring oscillators for generating a plurality of continuous pulses with frequencies reflecting the process parameter, operating voltage and temperature effects in the IC, a period generator for generating... Agent: Howard Chen, Esq. Preston Gates & Ellis LLP

20080129256 - Voltage regulator made of high voltage transistors: A voltage regulator including an output stage to generate an output voltage based upon a control voltage determined as a function of a difference between a reference voltage and a voltage representative of the output voltage. A sense resistor is coupled in series with the output stage and an auxiliary... Agent: Allen, Dyer, Doppelt, Milbrath & Gilchrist P.a.

20080129258 - Dc dc voltage boost converter: A high-output ratio DC DC converter supplies at least two regulated output voltages, a positive voltage Vs+ and a negative voltage Vs− from a direct current voltage Vin applied at the input, by means of two voltage boost structures with pairs of switches SBp1, SHp1, and groups of input capacitors... Agent: Lowe Hauptman & Berner, LLP

20080129259 - Multiphase dc-dc converter: Disclosed is a multiphase DC-DC converter including a plurality of DC-DC converter circuits connected in parallel to one another; an output section to add up outputs of the plurality of DC-DC converter circuits to obtain one output; a timing generating circuit to generate timing signals for respectively operating the plurality... Agent: Frishauf, Holtz, Goodman & Chick, Pc

20080129257 - Pulse width modulation controller: A pulse width modulation (PWM) controller is provided. The PWM controller transfers a conventional enable mechanism integrated into a versatile pin (PH) and integrates it into a feedback pin (FB) of the PWM controller, so as to promote the noise reduction capability of the PWM controller and avoid false operation.... Agent: J C Patents, Inc.

20080129260 - Current sharing for multiphase power conversion: In some embodiments a difference between duty cycles of at least two different phases in a power conversion device is tracked, and current is shared between the at least two different phases in response to the dynamic tracking. Other embodiments are described and claimed.... Agent: Intel Corporation C/o Intellevate, Llc

20080129261 - Linear voltage regulator: A linear voltage regulator is provided having a first transistor connected between a terminal for an input voltage and a terminal for an output voltage, a reference voltage source for producing a reference voltage, a first resistor, a second resistor, a second transistor, wherein the first resistor, the second resistor,... Agent: Muncy, Geissler, Olds & Lowe, Pllc

20080129262 - Switching power supply source: A switching power supply source including an inductance with first and second terminals; an output node; an NMos transistor, the drain of which is connected to the first terminal; a PMos transistor, the drain of which is connected to the first terminal; a control device generating control signals for NMos... Agent: Stmicroelectronics Inc. C/o Wolf, Greenfield & Sacks, P.c.

20080129264 - Hysteretic power-supply controller with adjustable switching frequency, and related power supply, system, and method: An embodiment of a hysteretic power-supply controller includes a signal generator, frequency adjuster, and signal combiner. The signal generator is operable to generate a switching signal having a first level in response to a control signal being greater than a first reference value and having a second level in response... Agent: Bryan A. Santarelli Graybeal Jackson Haley LLP

20080129263 - Mixed signal digital controller for switched mode power supplies: A method and apparatus is disclosed for an internal control circuit that switches transistors rapidly on and off to stabilize the output voltage or current of a switch-mode power supply (SMPS). The internal control circuit uses analog and digital signals to regulate the output voltage of the switch-mode power supply.... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20080129265 - Pulse width modulator with systematic frequency shifting and controlling method thereof: The configurations of a switching regulator and the controlling methods thereof are provided. The proposed switching regulator includes a pulse-width modulation controller generating a pulse train, an output driver receiving the pulse train and generating a driving signal so as to turn an external switch on/off, and a tri-mode clock... Agent: Freda Hsiung

20080129266 - Switching power supply circuit: Disclosed a switching power supply circuit of current resonance type including: a switching element; an LC resonance circuit to resonate current flowing through the switching element; and a detection circuit to perform a detection associated with an output current amount on the basis of an operation timing of the switching... Agent: Frishauf, Holtz, Goodman & Chick, Pc

20080129267 - Power supply circuit with temperature-dependent output current: A power supply circuit is disclosed herein comprising a load current path for connecting a load which has a switching element. The power supply circuit also includes a current sensor for providing a current measurement signal dependent on a current through the load current path. A drive circuit is also... Agent: Maginot, Moore & Beck Chase Tower

20080129270 - Device and methods for supplying instant high power to small arms fire control system: The present invention relates to a power supply device of a small arms fire control system or a similar small arms system. The device includes a first current limit part for limiting a low current when power is supplied from a battery, a second current limit part for limiting a... Agent: Mcdonnell Boehnen Hulbert & Berghoff LLP

20080129268 - Dual voltage power supply: A power supply for an integrated circuit has first and second energy storage elements and a regulator. The first energy storage element stores energy for application to the integrated circuit. The second energy storage element stores energy at a higher voltage than the energy stored by the first energy storage... Agent: Hanes & Schutz, Llc

20080129269 - Method of forming a power supply controller and structure therefor: In one embodiment, a power supply controller is configured to switch a power switch of a power supply when a voltage across the switch is at a minimum value.... Agent: Mr. Jerry Chruma Semiconductor Components Industries, L.l.c.

20080129271 - Low voltage reference system: A voltage reference system that generates a stable reference voltage at varying supply voltages. The system receiving an input voltage and having a voltage pumping circuit that provides a power supply, regulated by a regulator circuit, to a bandgap reference circuit. The bandgap reference circuit generating a first output as... Agent: Downs Rachlin Martin Pllc

20080129272 - Reference voltage generating circuit: Disclosed is a reference voltage generating circuit including first to third current-to-voltage converter circuits, a control circuit for exercising control so that the terminal voltage of the first current-to-voltage converter circuit is made equal to that of the second current-to-voltage converter circuit, and current mirror circuits for driving the first... Agent: Mcginn Intellectual Property Law Group, Pllc

20080129273 - 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, Stanger, Malur & Brundidge, P.c.

20080129274 - Controller, information processing apparatus and supply voltage control method: According to one embodiment, a controller to control voltages supplied to a first circuit unit and a second circuit unit arranged in a semiconductor module, includes a first power control unit configure to supply a control signal to determine a set voltage to a first power supply which supplies a... Agent: Pillsbury Winthrop Shaw Pittman, LLP