Electricity: power supply or regulation systems inventions 12/08

20080315847 - Programmable floating gate reference: A system includes a controllable voltage generator to generate a power supply voltage. The system also includes a system controller to determine a voltage level associated with the power supply voltage, and prompt the controllable voltage generator to generate the power supply voltage. The system includes a floating gate reference... Agent: Stolowitz Ford Cowger, LLP/cypress

20080315848 - Voltage regulator for an integrated circuit: A voltage regulator is disclosed. The voltage regulator includes a comparator for providing a gated output signal; and a state machine for receiving the gated output signal. The voltage regulator further includes at least one switch cell controlled by the state machine, for delivering charge to a load. Accordingly, a... Agent: Schwegman, Lundberg & Woessner / Atmel

20080315849 - Power converter and method for power conversion: The invention relates to a power converter for converting a first electrical power signal into a second electrical power signal having an output voltage Vout with a DC component comprising a control circuit (320) arranged for measuring the output voltage Vout and controlling the operation of the power converter in... Agent: Nxp, B.v. Nxp Intellectual Property Department

20080315851 - Semiconductor device and power supply using the same: A power-supply control IC is included in a switching power supply which drives to turn on and off a semiconductor switching device connected to a DC power supply in series to supply a predetermined constant voltage to an external load, and is a semiconductor device including a semiconductor circuit which... Agent: Miles & Stockbridge PC

20080315850 - Switching regulator: A switching regulator includes an inductor, first and second switches, a first rectifier to allow current flowing from a negative voltage output terminal to a connection node between the inductor and the first switch, a second rectifier to allow current flowing from a positive voltage output terminal to a connection... Agent: Dickstein Shapiro LLP

20080315852 - System and method for estimating input power for a power processing circuit: A controller for a power processing circuit and a related method of operating the same. In one embodiment, the controller includes a multiplier configured to produce a product of an input current and an input voltage of the power processing circuit. The controller also includes a low-pass filter configured to... Agent: Slater & Matsil, L.L.P.

20080315853 - Dc-dc converter controller having optimized load transient response and method thereof: 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

20080315854 - Input/output regulating circuitry with self-electrostatic-discharge protection: An I/O regulating circuitry is provided. The I/O regulating circuitry omits the ESD device in a CMOS process with a minimized critical dimension to reduce chip size while still maintaining electrostatic discharge immunity. The I/O regulating circuitry is applied in MLC flash memory applications and the flash controller thereof.... Agent: Grossman, Tucker, Perreault & Pfleger, PLLC

20080315856 - Bandgap reference voltage generator circuit: A bandgap reference voltage generator circuit includes a substrate made of a semiconductor of a first conductivity type, a first transistor formed on the substrate, a second transistor formed on the substrate and having a base commonly connected to the base of the first transistor, a light absorption region formed... Agent: Amin, Turocy & Calvin, LLP

20080315855 - Low power bandgap voltage reference circuit having multiple reference voltages with high power supply rejection ratio: A voltage generator is used for generating a voltage reference with high power supply rejection. One embodiment of the circuit includes a voltage regulator and a bandgap voltage circuit and an amplifier. The voltage regulator including an input node is coupled to an external power supply for generating a regulated... Agent: O2micro Inc C/o Murabito, Hao & Barnes LLP

20080315857 - Reference current generating apparatus: A reference current generating apparatus is provided which is capable of generating a reference current having no temperature dependency, without increasing a layout area. The reference current generating apparatus includes a constant current generating circuit having a differential amplifier, a constant current generating circuit connected to the constant current generating... Agent: Volentine & Whitt PLLC

20080315858 - Switch mode power supply apparatus having active clamping circuit: A switch mode power supply apparatus includes a transformer, a main switching device to adjust a power supply supplied to a primary coil of the transformer, an active clamping circuit to suppress a voltage stress of the main switching device, and a control circuit to control a clamping operation of... Agent: Stein, Mcewen & Bui, LLP

20080315859 - Swithgear cell and converter circuit for switching a large number of voltage levels: A switchgear cell is disclosed having a first energy store and a second energy store connected in series therewith, having a first, second, third and fourth power semiconductor switch, which are connected in series, wherein the first, second, third and fourth power semiconductor switch are in each case one drivable... Agent: Buchanan, Ingersoll & Rooney PC

20080309298 - Power converter with a feedback controller: A power converter with a feedback controller includes a converter body with an input end for an input voltage, an output end for an output voltage, a controller with a feedback device, and a connector for connection with the output end of the converter body and with an electric appliance.... Agent: Dr. Banger Shia Int''l Patent Office Of Bang Shia

20080309297 - Usb charger for commercial transport vehicle: An outlet provides both AC and DC power to at least one device. The outlet includes an input portion adapted to receive a first voltage input and a second voltage input wherein the first voltage input is a variable DC voltage and the second input is AC of a desired... Agent: Wiggin And Dana LLP Attention: Patent Docketing

20080309299 - Inductor assembly having a core with magnetically isolated forms: An embodiment of an inductor assembly includes a core, a first conductor, and a second conductor. The core includes first and second members, a first group of one or more forms extending between the members, a second group of one or more forms extending between the members, and an isolating... Agent: Graybeal, Jackson, Haley LLP

20080309300 - Digital current share bus interface: A digital current share bus interface connects to a power module which provides a signal representative of its output current, and adjusts the module's output current in response to a control signal received from the interface. A data formatting module receives the output current signal and generates a digital word... Agent: Koppel, Patrick & Heybl

20080309301 - didirectional dc-dc converter and power supply apparatus with the same: A bidirectional DC-DC converter 10 has smoothing capacitors Cs1 and Cs2, a smoothing reactor Ls, resonant reactors Lr1 and Lr2, and a resonant capacitor Cr, as well as insulated gate bipolar transistors (IGBTs) Q1, Q2, and Q3 to which buffer capacitors C1, C2, and C3 are connected in parallel and... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080309302 - Dc-dc converter: The invention discloses DC-DC converters comprising an inductance, a pulse width modulator generating a pulse signal according to the voltage level of a transformed voltage output terminal, a load sensor sensing a load current, an adaptive enable signal generator generating a PMOS transistor enable signal and an NMOS transistor enable... Agent: Quintero Law Office, PC

20080309303 - Switching power supply and regulation circuit: The present invention provides a switching power supply that enables a reduction in noise without the need for an anti-noise component such as a filter circuit. A secondary current on period detecting circuit detects a first period during which a secondary current flows, the secondary current starting to flow through... Agent: Steptoe & Johnson LLP

20080309304 - Electro-optical device and electronic apparatus: The electro-optical device is directly connected to a battery and includes a display panel, a driver, and a voltage adjusting circuit. The driver amplifies an input voltage and supplies the amplified voltage to the display panel. The voltage adjusting circuit includes a plurality of conversion circuits, a switching unit, and... Agent: Harness, Dickey & Pierce, P.L.C

20080309305 - Controllable voltage device drivers and methods of operation therefor: Embodiments include controllable voltage device drivers adapted to generate driver output voltages. A device driver includes a direct current (DC) voltage source adapted to receive a voltage level command that indicates a commanded voltage, and to generate a DC transformer input voltage having a voltage level corresponding to the commanded... Agent: Duke W. Yee

20080309306 - Power control circuit with coupling circuit for controlling output power sequence and liquid crystal display using same: An exemplary power control circuit (24) includes a scaler circuit (245) configured for outputting a control signal, a voltage converter (27) configured for converting a received voltage into a plurality of desired voltages, a first control unit (28), a second control unit (29), and a coupling circuit (26). The first... Agent: Wei Te Chung Foxconn International, Inc.

20080309307 - High voltage power switches using low voltage transistors: A switching regulator having first and second power switches. The first power switch has at least two transistors connected in series, the transistors having a first maximum voltage across their terminals which is less than the input voltage of the regulator. The transistors have at least a first node at... Agent: Nxp, B.v. Nxp Intellectual Property Department

20080309309 - Bias circuit: In a conventional bias circuit, as a power supply voltage increases, a current supplied to a bandgap reference becomes unstable due to a fluctuation of the power supply voltage, which makes it impossible for the bias circuit to perform stable bias operations in some cases. A bias circuit of the... Agent: Mcginn Intellectual Property Law Group, PLLC

20080309308 - High current drive bandgap based voltage regulator: A high current drive bandgap based voltage regulator for providing a reference voltage at a an output voltage at a designed output voltage value. The high current drive bandgap based voltage regulator includes a high current drive output transistor, a feedback network, an output terminal and an operational amplifier. The... Agent: Bereskin And Parr

20080309310 - High voltage power supply connector system: A connector system is provided for coupling an ionization emitter to an high voltage (HV) supply. The connector system includes one or more contacts for distributing voltage from the HV supply to the emitter. The connector system further includes a detection device that detects an element of an emitter that... Agent: Panitch Schwarze Belisario & Nadel LLP

20080309311 - Power converter for compensating a maximum output power: A power converter for compensating a maximum output power includes a power switch, a control circuit, an oscillator and a frequency modulator. The control circuit generates a PWM signal in response to the pulse signal generated by the oscillator. The frequency modulator generates a second discharge signal to the oscillator... Agent: Hdsl

20080309312 - Power converter for compensating a maximum output power: A power converter and a PWM controller for compensating a maximum output power includes a power switch, an oscillator, a control circuit and a delay modulator. The oscillator generates a pulse signal. The control circuit is coupled to the oscillator for generating a PWM signal and an over current signal... Agent: Hdsl

20080309313 - Systems and methods for providing device-to-device handshaking through a power supply signal: Handshaking circuits are provided in a communications cable and in a device operable to be mated with the communications cable. Before a device can utilize the power supply signal of such a communications channel, the two handshaking circuits must sufficiently identify one another over a power supply signal with a... Agent: Ropes & Gray LLP

20080309314 - Voltage regulator and method of manufacturing the same: A voltage regulator and a method of manufacturing the voltage regulator, which can provide a desired output voltage of the voltage regulator using a plurality of metal wires, arranged in regular patterns, and conductive metal wiring patterns, configured to activate the metal wires by selectively connecting them to each other... Agent: Drinker Biddle & Reath LLP Attn: Patent Docket Dept.

20080303491 - Switched-mode power supply quasi-resonant converter, switch control circuit controlling switching operations of switched-mode power supply quasi-resonant converter, and input signal processing circuit connected to control integrated circuit of switch cont: Aspects of the invention relate to a Switched-Mode Power Supply (SMPS) quasi-resonant converter, a switch control circuit controlling switching operations of the SMPS quasi-resonant converter, and an input signal processing circuit connected to a control Integrated Circuit (IC) of the switch control circuit. The SMPS quasi-resonant converter includes a switch... Agent: Stein, Mcewen & Bui, LLP

20080303492 - Method and circuit for reducing regulator output noise: A regulator circuit for reducing the output noise when regulators are switched includes a linear regulator and a switching regulator. The linear regulator generates a first regulator voltage from an input voltage with a first feedback loop. The switching regulator generates a second regulator voltage from the input voltage with... Agent: Freescale Semiconductor, Inc. Law Department

20080303493 - Boost regulator startup circuits and methods: Embodiments of the present invention include a method of starting a boost regulator comprising during an initial phase beginning when the boost regulator is powered off, coupling a first current from the input node to the output node to increase a voltage on the capacitor to a first voltage level,... Agent: Fountainhead Law Group P.C.

20080303495 - Power supply with a magnetically uncoupled phase and an odd number of magnetically coupled phases, and control for a power supply with magnetically coupled and magnetically uncoupled phases: An embodiment of a power supply includes an input node operable to receive an input voltage, an output node operable to provide a regulated output voltage, an odd number of magnetically coupled phase paths each coupled between the input and output nodes, and a first magnetically uncoupled phase path coupled... Agent: Graybeal, Jackson, Haley LLP

20080303494 - Semiconductor integrated circuit and system: An internal circuit has a plurality of circuit blocks operating by receiving an internal power supply voltage. An internal voltage control circuit generates a plurality of regulator control signals according to a combination of operating circuit blocks. A plurality of regulators operate in response to activation of the regulator control... Agent: Arent Fox LLP

20080303496 - Low pass filter low drop-out voltage regulator: A low dropout voltage regulator is described having a pass device, differential amplifiers, and a feedback loop including a low pass filter. Two differential amplifiers arranged in parallel coupled to the low pass filter in the feedback loop provide a specified and stable DC voltage whose input-to-output voltage difference is... Agent: Brinks, Hofer, Gilson & Lione Freescale

20080303497 - Semiconductor integrated circuit device for providing series regulator: A semiconductor integrated circuit device for controlling an external output transistor is provided. The semiconductor integrated circuit device comprises: a first power supply circuit including an output circuit and providing a first series regulator in cooperation with the output external transistor; and a plurality of terminals. The plurality of terminals... Agent: Posz Law Group, PLC

20080303498 - Current generator: A current generator is provided, including a bandgap circuit, an operational amplifier, and an output resistor. The bandgap circuit is used to output a bandgap reference voltage insensitive to environment temperature and supply voltages. The operational amplifier has a positive input receiving the bandgap reference voltage, a negative input, and... Agent: Rabin & Berdo, PC

20080303499 - Control circuit and method for multi-mode buck-boost switching regulator: A control circuit of a multi-mode buck-boost switching regulator and a method thereof are provided. The control circuit imposes ON/OFF timing sequences on switches according to the relationship between two controlling triangle waves and the load fluctuation. In each working cycle of each mode of the regulator, at most two... Agent: J C Patents, Inc.

20080303500 - Dc-dc converter and control method thereof: A first power supply line and having a first conductivity type a second transistor coupled between the first transistor and a second power supply line, and having the first conductivity type an output unit driving a first control signal causing the first transistor to become conductive, based on a drive... Agent: Arent Fox LLP

20080303502 - Buck-boost converter: A controller (10) for a constant frequency current-mode buck-boost converter, the converter including an inductor (L), a first switch (SW1, S1) connected between an input terminal (Vin) of the converter and one end of the inductor (L), a diode or a switch (D1, S2), connected between the first end of... Agent: Dickstein Shapiro LLP

20080303501 - Digital controller for dc-dc switching converters for operation at ultra-high constant switching frequencies: A digital controller for low-power DC-DC switch mode power supplies (SMPS) suitable for on-chip implementation and use in portable battery-powered systems is provided. The digital controller allows operation at ultra high constant switching frequencies and can be implemented with a simple low-power digital hardware. The digital controller includes a digital... Agent: Miller Thompson, LLP

20080303503 - Device for distributed maximum power tracking for solar arrays: The present invention is a system for providing power from solar cells whereby each cell or cell array is allowed to produce its maximum available power and converted by an operatively connected DC/DC converter. Each cell or cell array has its own DC/DC converter. In one form the system for... Agent: Shoemaker And Mattare, Ltd

20080303504 - Semiconductor device: A semiconductor device includes: a first reference voltage generator for generating a first reference voltage; a first band gap circuit for dividing a voltage at a second reference voltage output node to produce a first and a second band gap voltages having a property relative to temperature variations; a first... Agent: Mcdermott Will & Emery LLP

20080303505 - Self tuning high voltage power supply: A self tuning high voltage power supply comprising a signal generator that emits a variable frequency signal, an amplifier that receives the variable frequency signal and emits an amplified variable frequency signal, and a transformer that receives and steps up the amplified variable frequency signal, creating an output voltage that... Agent: Richard D. Clarke Law Office Of Richard D. Clarke

20080297121 - Power supply apparatus, test apparatus, and electronic device: There is provided a power supply apparatus including a power supply section that supplies an output current to an external load, and a current control section that flows an electric current varying in a direction opposite to a supply current being supplied to the power supply section into a ground... Agent: Jianq Chyun Intellectual Property Office

20080297122 - Advanced current-mode control for switched regulators: A voltage regulator includes an input connectable to a voltage source and an output connectable to a load. The voltage regulator includes an inductor coupled to the output, a switch between the input and the inductor, and a current control loop configured to control the duty cycle of the switch... Agent: Mcdermott Will & Emery LLP

20080297123 - Power losses reduction in switching power converters: Embodiments of the invention provide methods and apparatuses for concurrently eliminating or substantially reducing two or more switching losses in an inverter switching circuit. Embodiments of the invention concurrently reduce multiple types of switching losses under hard switching mode and soft switching mode for active switching devices and diodes. In... Agent: Blakely Sokoloff Taylor & Zafman LLP

20080297124 - Transmission method, apparatus and module: The invention is related to an apparatus configured to: monitor a power supply voltage and a transmission power need and adjust transmission power according to the power supply voltage and the transmission power need for prolonging operation time of an electronic device when the power supply voltage is at least... Agent: Squire, Sanders & Dempsey L.L.P.

20080297126 - Combined type transformer and buck-boost circuit using the same: Combined type transformer includes: a transformer core; first and second coils provided with respect to the transformer core; first and second inductor cores provided around the first coil; and third and fourth inductor cores provided around the second coil. The transformer core and the first and second coils constitute a... Agent: Birch Stewart Kolasch & Birch

20080297125 - Voltage regulator, voltage regulating method thereof and voltage generator using the same: A voltage regulator and a voltage regulating method thereof and a voltage generator using the voltage regulator are disclosed by the present invention. The voltage regulator of the present invention uses a first switching unit and a second switching unit to respectively provide an operational transconductance amplifier (OTA) with different... Agent: Jianq Chyun Intellectual Property Office

20080297127 - Method of controlling a switched-mode power supply having a single inductive element and several outputs, and corresponding power supply, in particular for a cellular mobile telephone: The switched-mode power supply includes a switching cell having an inductive element with two connections and several individually selectable outputs, and in which the two connections of the inductive element are joined respectively to at least two of the individually selectable outputs. It is thus possible to generate and regulate... Agent: Allen, Dyer, Doppelt, Milbrath & Gilchrist P.A.

20080297128 - Sample and hold scheme for a feedback network of a power converter: One embodiment of the invention includes a system for regulating an output voltage of a power converter. The system comprises an error amplifier that compares a feedback voltage associated with the output voltage with a reference voltage to generate an error signal that is employed to control a magnitude of... Agent: Texas Instruments Incorporated

20080297129 - High-voltage power supply apparatus and image forming apparatus employing same: The voltage at a spurious frequency is decreased while maintaining as much as possible the voltage at a resonance frequency of a piezoelectric transformer, thus controlling a wide voltage range with a comparatively low cost configuration. A high-voltage power supply apparatus includes a piezoelectric transformer that outputs a highest voltage... Agent: Fitzpatrick Cella Harper & Scinto

20080297131 - Bandgap reference circuit: A bandgap reference circuit includes a reference current generator for respectively generating a first reference current on a first current path and a second reference current on a second current path, a current mirror for generating a third reference current on a third current path based on the first and... Agent: J C Patents, Inc.

20080297130 - Bandgap reference circuits: A bandgap reference circuit comprises: a current generator for generating an output current, the current generator comprising a first reference unit and a plurality of second reference units arranged in parallel, where the current generator is capable of determining the magnitude of the output current according to the reference units;... Agent: North America Intellectual Property Corporation

20080297132 - Reference voltage generator and voltage regulator incorporating same: A reference voltage generator includes a first field effect transistor with n-type heavily doped gate structure and a second field effect transistor with p-type heavily doped gate structure. The first transistor is configured to have a gate and a substrate gate connected to ground, one terminal connected to a voltage... Agent: Dickstein Shapiro LLP

20080297133 - Dynamic voltage scaling for packet-based data communication systems: A dynamic voltage scaling system for a packet-based data communication transceiver includes a constant voltage supply, a variable voltage supply, and a voltage control unit. The constant voltage supply is configured to supply a constant voltage to at least one parameter-independent function of the transceiver, and the variable voltage supply... Agent: Buchanan, Ingersoll & Rooney PC

20080297134 - Circuit for transmitting an amplified resonant power to load: A circuit for transferring amplified resonant power to a load is disclosed. The circuit transfers amplified resonant power, which is generated in an inductor of a conventional transformer when serial or parallel resonance of a conventional power supply is formed, to a load through the conventional transformer. The circuit comprises:... Agent: Ipla P.A.