Electricity: power supply or regulation systems inventions 05/07

20070120540 - Marginal check voltage setting means built-in power-supply device: A power-supply device comprising such marginal check voltage setting circuit that is easily adaptable to downsizing of the device and to configuration using ICs. The power-supply device of this invention comprises a marginal check voltage setting circuit that accepts input of a reference voltage and sets a desired marginal check... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20070120541 - Capacitor insulating power supply: Switching elements M1, M2, M3 are connected in series between the positive and negative lines carrying DC current supplied through a rectifier circuit 2 from an AC power supply 1 or directly supplied from a DC power source. The switching elements M1, M2, M3 are on/off controlled by a high-frequency... Agent: Rabin & Berdo, PC

20070120542 - Pulse signal drive circuit: A pulse signal drive circuit includes an energy storage device. A source of energy supplies a substantially constant flow of energy to the energy storage device. A switch circuit draws repetitive pulses of substantially constant energy from the energy storage device to generate corresponding pulse drive signals.... Agent: Jack Schwartz & Associates

20070120543 - Flexible power converter and simplified process controller: Flexible power converter and simplified process controller capable of being configured for a variety of applications with minimal effort. The power converter has a plurality of filtered half-bridges that can be configured for multiple topologies. The process controller can be adjusted through a timing parameter to process the configured feedback... Agent: David J. Caldwell

20070120544 - Single-pin tracking/soft-start function with timer control: A voltage regulator includes a voltage divider connected between a soft-start pin and the voltage regulator's error amplifier. The voltage divider has the same divider ratio as that of the voltage regulator's feedback voltage divider, which is used to divide the regulated output voltage fed back to the error amplifier.... Agent: Bever Hoffman & Harms, LLP Tri-valley Office

20070120546 - Compact voltage step-up/step-down switching regulator: This patent specification describes a switching regulator which includes a step-up/step-down unit configured to generate an output voltage by stepping up or down an input voltage in accordance with a control signal, and a control unit configured to cause the step-up/step-down unit to perform the step-up or step-down operation.... Agent: Cooper & Dunham, LLP

20070120545 - Dc/dc converter: The present invention aims to share a semiconductor chip built-in circuit for a step-down function and a step-up function by or through one semiconductor product used as a DC/DC converter configured in a semiconductor chip. The semiconductor chip includes a switching driver, a first switch element and a second switch... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20070120547 - Slope compensation for switching regulator: In one embodiment, a switching regulator comprises a control circuit that activates and deactivates at least one power switch to control a voltage of a switching node. The system also comprises an inductor that conducts a current from the switching node to an output to generate an output voltage. The... Agent: Texas Instruments Incorporated

20070120548 - Switching regulator, and a circuit and method for controlling the switching regulator: A switching regulator includes a first switching element for charging an inductor, a switching circuit for discharging the inductor, a controller circuit for generating a first control signal for controlling the level of an output voltage of the switching regulator, and a reverse current suppressing circuit for controlling the on-resistance... Agent: Cooper & Dunham, LLP

20070120549 - Capacitor start-up apparatus and method with fail-safe short circuit protection: Electronic circuits couple energy storage devices, such as double layer capacitors or rechargeable battery cells, to a power supply output, thereby improving noise suppression and extending ride-through capability of the power supply. In a typical circuit, an energy storage device is coupled in series with a switch that controls the... Agent: Hensley Kim & Edgington, LLC

20070120550 - Medical system control device: A medical system control device comprises a first control unit for controlling at least a power supply to a plurality of devices configuring a medical system, a second control unit, the startup process time of which is longer than the first control unit, for controlling the entire medical system, and... Agent: Thomas Spinelli Scully, Scott, Murphy & Presser

20070114978 - System for transmission of electric power: A high voltage AC transmission cable system for transmitting power between two points, each connected to one or more power networks, and a method to operate the system. At least one transformer is arranged at each end of the AC transmission cable, wherein at least one of the transformers is... Agent: Venable LLP

20070114979 - Power converter employing a tapped inductor and integrated magnetics and method of operating the same: A power converter employing a tapped inductor and method of operating the same. In one embodiment, the power converter includes first and second tapped inductors including a tapped winding having a first section and a second section with a tap therebetween. The power converter also includes first and second active... Agent: Slater & Matsil, L.L.P.

20070114980 - Autonomous switching transformer: A step up switching converter is disclosed. The switching converter comprises a first semiconductor switch arranged in series connection with a storage inductor and a sensor resistor. The control electrode of the first semiconductor switch is connected via a resistor to the input voltage, the resistor constituting the operating resistor... Agent: Ratnerprestia

20070114981 - Switching power supply system with pre-regulator for circuit or personnel protection devices: A linear pre-regulator for cascading with a switching regulator for providing a load current for a circuit or personnel protection device includes a transistor for providing a series variable resistance when a load current changes. The series variable resistance includes a control node, and a control part maintains a substantially... Agent: Square D Company Legal Department - I.p. Group

20070114982 - Constant-voltage power circuit with fold back current limiting capability: A constant-voltage power circuit incorporating an over-current protection circuit having a fold back current limiting capability operative through low input voltages, and being capable of arbitrarily setting current outputs. The constant-voltage power supply circuit is configured so that a voltage output with small amplitude from a differential amplifier circuit is... Agent: Dickstein Shapiro LLP

20070114983 - Switching regulator with hysteretic mode control using zero-esr output capacitors: A switching regulator integrated circuit for controlling first and second switches in a hysteretic mode using a zero or very low equivalent series resistance (ESR) capacitor includes an integrated circuit package housing a switching regulator semiconductor chip, a first package lead on the integrated circuit package receiving the regulated output... Agent: Patent Law Group LLP

20070114985 - Non-linear pwm controller for dc-to-dc converters: A nonlinear PWM controller for switching power supplies... Agent: Burns & Levinson, LLP (formerly Perkins Smith & Cohen LLP)

20070114984 - Register with default control and built-in level shifter: Embodiment of the present invention may provide a switching regulator which may be located within an IC. The switching regulator couples to an external power supply, a plurality of configurable control registers, a plurality of default registers, and a multiplexer. The multiplexer is operable to select an input control signal... Agent: Garlick Harrison & Markison

20070114986 - Switching regulator: A switching regulator is disclosed that includes a switching transistor controlling output of an input voltage by switching in accordance with an input control signal; a smoothing circuit part configured to smooth the output voltage of the switching transistor and output the smoothed voltage to an output terminal; a control... Agent: Dickstein Shapiro LLP

20070108948 - Buck dc to dc converter and method: A method and apparatus for converting a DC voltage to a lower DC voltage, provides for conducting current from an input terminal, through an inductor to charge a capacitor connected to the inductor at an output terminal and to provide a varying range of load current from the output terminal,... Agent: Burns & Levinson, LLP (formerly Perkins Smith & Cohen LLP)

20070108947 - Switching regulator slope compensation generator circuit: A slope compensation circuit that provides slope compensation in a switching regulator is provided. The slope compensation circuit preferably is adapted to receive an oscillator pulse train from a pulse width modulator oscillator and a modulator pulse train from a pulse width modulator. The circuit preferably includes a feedback loop... Agent: Fish & NeaveIPGroup Ropes & Gray LLP

20070108949 - Constant voltage generating apparatus with simple overcurrent/short-circuit protection circuit: In a constant voltage generating apparatus where an output circuit is controlled in accordance with a control voltage, a voltage detection signal generating circuit generates a voltage detection signal in accordance with a difference between an output voltage signal of the output circuit and a first reference signal. A current... Agent: Mcginn Intellectual Property Law Group, PLLC

20070108950 - Regulator circuit: A regulator circuit is offered to resolve a problem that an unnecessary operating current flows in a semiconductor integrated circuit in a low power consumption state. Channel width to channel length ratios of an output transistor in a first operational amplifier and a first control MOS transistor are designed large... Agent: Morrison & Foerster LLP

20070108952 - Control device for a switching converter and related switching converter: A control device for a switching converter having an input terminal, an output terminal, a semi-bridge of a first and second transistor coupled between the input terminal and a reference voltage, includes a first circuit for driving the first transistor and a second circuit for driving the second transistor. The... Agent: Hogan & Hartson LLP

20070108951 - Power converter using extrapolative conductance mode control: Power converters employing extrapolative conductance mode (ECM) control utilize periodic current sampling and employ an extrapolation method to determine charge pulse duration. In preferred embodiments, the operating frequency of the converter is altered in response to current sample perturbations to dissipate sub-harmonic oscillations associated with duty cycles of 50% or... Agent: Intellectual Property / Technology Law

20070108953 - Non-linear controller for switching power supply: Methods and systems for nonlinear control of switching power supplies.... Agent: Burns & Levinson, LLP (formerly Perkins Smith & Cohen LLP)

20070108954 - Compensation offset adjustment scheme for fast reference voltage transitioning: A PWM control circuit for a voltage regulator including a compensation network, a ramp generator providing a ramp voltage, an offset adjust circuit and a comparator circuit. The compensation network senses the output voltage, receives a reference voltage, and outputs a compensation voltage. The offset adjust circuit adjusts a selected... Agent: Law Offices Of Gary R. Stanford

20070108955 - Method and apparatus to reduce maximum power from a power supply with transition region regulation: Techniques are disclosed to regulate the output power of a power supply. An example regulator circuit includes a feedback circuit coupled to generate a feedback signal in response to an output of a power supply. The feedback circuit includes a voltage regulation circuit, a current regulation circuit and a transition... Agent: Blakely Sokoloff Taylor & Zafman

20070108956 - System and method for charging and discharging a superconducting coil: A system and method for charging and discharging a superconducting coil. The system comprising a boost converter coupled between a low-voltage bus and a high voltage bus, and a buck converter coupled between the high-voltage bus and the coil. The system being configured to charge and discharge the coil without... Agent: Patrick S. Yoder Fletcher Yoder

20070108957 - Constant-current circuit and system power source using this constant-current circuit: A constant-current circuit and a system power source using this constant-current circuit are disclosed, which can generate plural highly accurate constant currents and supply them as bias currents by reducing variations caused by a change of a manufacturing process and a change of temperature. An operational amplification circuit AMP controls... Agent: Dickstein Shapiro LLP

20070108958 - Constant-voltage circuit and controlling method thereof: A constant-voltage circuit in which a response speed for a sudden change of an input voltage or a sudden change of a load current can be fast are disclosed. In normal operating conditions, a first control circuit (error amplifier circuit) having an excellent direct-current characteristic controls operations of an output... Agent: Cooper & Dunham, LLP

20070108959 - Power supply control device and precharge processing method: Upon receiving a start instruction, a control device turns on first and third system main relays, and performs precharge processing for charging a capacitor. Here, a limiting resistor for preventing an inrush current into the capacitor in a discharged state at the time of start is not provided in a... Agent: Oliff & Berridge, PLC

20070103122 - Power conversion regulator with predictive energy balancing: A power-conversion regulator comprising an inductive reactor, an output filter reactor, and a switch for admitting energy to the inductive reactor, additionally comprises computation circuitry responsive to the flux in the inductive reactor, to a reference signal, to an output voltage, and sometimes to an output load current, for computing... Agent: Rudoler & Derosa LLC Attn: Docket Clerk

20070103123 - Method for determining the source equivalent inductance of an energized ac circuit: This method induces a test load on an energized AC electrical system component. This load is switched on for a very brief interval (usually in microseconds). The method includes simultaneously measuring the current response to this pulsed load. From this response, the Equivalent Inductance of the system under test is... Agent: Timothy Gale Devore

20070103124 - System and method for controlling the drive strength of output drivers in integrated circuit devices: A system and method for controlling the drive strength of output drivers in integrated circuit devices employing, in a representative embodiment, a single reference voltage and a single comparator without the requirement of a dead-band. The technique of the present invention guarantees that the output voltage will always be within... Agent: Hogan & Hartson LLP

20070103125 - Reduced rating t-connected autotransformer for converting three phase ac voltages to nine/six phase shifted ac voltages: The invention provides a T-connected autotransformer for converting three-phase ac input voltages to nine phase shifted ac voltages feeding three sets of three-phase diode rectifier bridges. The nine phase shifted voltages are at an angle of +20 degree or −20 degree with respect to the supply voltages and their magnitudes... Agent: Caesar, Rivise, Bernstein, Cohen & Pokotilow, Ltd.

20070103126 - Delay compensation for hysteretic control: For controlling a direct current to direct current (DC-DC) converter, a controller individually switches a charge switch and a discharge switch to control a duty cycle, thereby providing a regulated DC output. A delay in switching each one of the charge and discharge switches results in a formation of a... Agent: Haynes And Boone, LLP

20070103127 - Multi-lamp driver with active current regulator: An active current regulator circuit. In one embodiment, the active current regulator circuit includes a first input node for receiving a first reference electrical signal, a second input node for receiving a second reference electrical signal, a ground node, and an output node for outputting an output electrical signal with... Agent: Morris Manning Martin LLP

20070103129 - Circuit arrangement for voltage regulation: A circuit arrangement for voltage regulation comprises an output, a controllable output transistor connected to the output, an error detection circuit, and a monitoring control circuit. A voltage-regulated output potential can be tapped off the output, the controllable output transistor is connected to the output on a load side and... Agent: Maginot, Moore & Beck Chase Tower

20070103128 - Dc-dc converter and organic light emitting display using the same: A DC-DC converter with an improved signal response characteristic and reduced power consumption; and an organic light-emitting display using the same are disclosed. A comparator for receiving an input voltage and a reference voltage and determining an output to correspond to a difference between the input voltage and the reference... Agent: Knobbe Martens Olson & Bear LLP

20070103130 - Dc-dc converter and organic light emitting display using the same: A DC-DC converter with improved response characteristics and reduced power consumption, and an organic light-emitting display using the converter is disclosed. The converter uses a comparator for receiving an input voltage and a reference voltage and determining an output corresponding to a difference between the input voltage and the reference... Agent: Knobbe Martens Olson & Bear LLP

20070103131 - Dc-dc converter and organic light emitting display using the same: A DC-DC converter capable of improving a response characteristic of the signal and reducing power consumption; and an organic light-emitting display using the same are disclosed. The converter has a comparator for receiving an input voltage and a reference voltage and determining an output to correspond to a difference between... Agent: Knobbe Martens Olson & Bear LLP

20070103136 - Power supply and related circuits: A controller circuit in a power supply system is configured to simultaneously control both a voltage regulator circuit and a dynamic power supply circuit. The controller circuit monitors voltage produced by the voltage regulator circuit. The voltage regulator circuit conveys power from a voltage source to a dynamic load such... Agent: Barry W. Chapin, Esq. Chapin Intellectual Property Law, LLC

20070103135 - Power supply apparatus with discharging switching element operated by one-shot pulse signal: In a power supply apparatus, a power supply voltage generating circuit generates a power supply voltage and transmits it to an output terminal, and a discharging switching element is connected between the output terminal and a ground terminal. The discharging switching element is turned ON by a one-shot pulse signal.... Agent: Foley And Lardner LLP Suite 500

20070103134 - 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: J.c. Patents, Inc.

20070103133 - Procedure and a switching arrangement for triggering a load element using an electronic switching element in a load circuit: A procedure for triggering a load element using an electronic switch element is presented, in which voltage on the load element is controlled with a maximum specified increase. The increase does not remain constant, but is controlled via the switching procedure in dependence on the effectively occurring power loss or... Agent: Continental Teves, Inc.

20070103132 - Switch mode power supply: A switched mode power supply assembly (1) is described, which comprises a plurality of at least two, power supply modules (10). Each power supply module (10) cyclically coupled to each other. Each power supply module (10i) comprises synchronisation control means for generating a synchronisation control signal for a next neighbouring... Agent: Philips Intellectual Property & Standards

20070103137 - Control circuit having frequency modulation to reduce emi of power converters: A control circuit having frequency modulation is used for reducing the EMI of a power converter. A switching circuit is couple to a feedback circuit to generate a switching signal for regulating an output of the power converter. A first oscillator is equipped to determine a switching frequency of the... Agent: J.c. Patents, Inc.

20070103138 - Dc-dc converter and power supply device: A switching control IC is provided with a circuit for generating a triangular wave using a frequency that is dependent on a capacitor connected to a CT terminal of the switching control IC, and a resistor connected to an RT terminal thereof. A synchronizing signal input circuit for externally receiving... Agent: Ostrolenk Faber Gerb & Soffen

20070103139 - Current mirror circuit and constant current circuit having the same: A current mirror circuit includes transistors having bases coupled together and emitters connected to a voltage line. The current mirror circuit further includes a zener diode having an anode connected to the bases and a cathode connected to the voltage line. When a base potential of the transistors decreases, a... Agent: Posz Law Group, PLC

20070096700 - Boost converter: A boost converter includes a first boost conversion unit and a second boost conversion unit. Coils of the first boost conversion unit and the second boost conversion unit are coupled with each other. Due to coupling of the coils, the second boost conversion unit releases energy while the first boost... Agent: Birch, Stewart, Kolasch & Birch, LLP

20070096699 - Method of forming a power supply controller and device therefor: In one embodiment, a power supply controller uses a ramp signal to form current sense ramp compensation.... Agent: Semiconductor Components Industries, LLC Bradley J. Botsch

20070096701 - Converter circuit: A converter circuit is specified for at least one phase (R, Y, B), which converter circuit has a first switching group system which is provided for each phase (R, Y, B) and has a first main switching group which is formed by a power semiconductor switch and by a capacitor... Agent: Buchanan, Ingersoll & Rooney PC

20070096702 - Regulator with load tracking bias: An electrical circuit that provides accurate, regulated output voltage over a wide range of input voltages, while exhibiting each of three desired characteristics: accuracy across different supply/process/temperature; stability and linearity yielding phase/gain margins; and high (good) power supply rejection ratio (PSRR). The circuit comprises an output node having a load... Agent: Dillon & Yudell LLP

20070096704 - Digital controller for a voltage regulator module: A digital controller for a voltage regulator module (VRM) having single phase or multiphase power converters, and an optional dynamic conversion circuit, is disclosed. The digital controller improves the transient response of the VRM during harsh load current transients, and permits a substantial reduction in output capacitance of the VRM.... Agent: Barry W. Chapin, Esq. Chapin Intellectual Property Law, LLC

20070096703 - Dynamic conversion circuit for a voltage regulator module: The invention relates to a dynamic conversion circuit for improving the transient response of a switching DC-DC converter, such as in a voltage regulator module (VRM). The dynamic conversion circuit may be applied to a single phase or multiphase interleaved VRM of either isolated or non-isolated design configurations, and enhances... Agent: Barry W. Chapin, Esq. Chapin Intellectual Property Law, LLC

20070096705 - High-win circuit for multi-phase current mode control: A current mode control circuit uses a current comparing module to control a switching signal according to one of a plurality of current feedback signals. The current mode circuit comprises a voltage control module that generates an output voltage according to an input voltage and the switching control signal, and... Agent: General Motors Corporation Legal Staff

20070096706 - Power supply control method and power supply apparatus: According to one embodiment, in this invention, a control method for a switching power supply using pulse width modulation (PWM) control, includes detecting an input voltage to be supplied to the switching power supply, detecting an output voltage from the switching power supply, calculating a timing for sampling a current... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20070096708 - Power supply circuit: A power supply circuit, comprises a booster circuit that boosts the voltage supplied from a power supply to produce an output voltage; a voltage divider circuit that divides said output voltage by resistive division and outputs a monitored voltage; a comparator circuit that compares said monitored voltage with a reference... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070096709 - Signal-to-noise improvement for power loss minimizing dead time: Apparatus for minimizing power losses associated with dead time between ON times of two series connected switches of a power converter connected across a supply potential, the apparatus comprising a control arrangement for monitoring a selected parameter associated with power loss during the dead time of the converter; the control... Agent: Ostrolenk Faber Gerb & Soffen

20070096707 - Switching regulator circuit including an inductor shunt switch: A switching regulator circuit includes a switching circuit that may be configured to alternately apply a supply voltage and a reference voltage to an inductor coupled between a first node and an output node. The switching regulator circuit also includes a switch such as a transistor, for example, that is... Agent: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.

20070096710 - Constant-peak-current minimum-off-time pulse frequency modulator for switching regulators: Methods and apparatus are disclosed for controlling switching regulators to automatically switch from a traditional pulse-width modulation (PWM) mode, when the load current is higher than a predetermined value, to a pulse-frequency modulation (PFM) mode, when the load current drops to a point lower than the predetermine value. Switching modes... Agent: Perkins Coie LLP Patent-sea

20070096711 - Dc-dc converter and control circuit thereof: The present invention is intended to provide a DC-DC converter, in which the relationship between the duty ratio of a drive signal and the output DC voltage is nonlinear, being characterized in that the relationship between an error signal and the output DC voltage is linear, and that the design... Agent: Gregory A. Stobbs

20070096712 - Startup circuit and startup method for bandgap voltage generator: The present invention discloses a startup circuit. The startup circuit is utilized for activating a bandgap voltage generator, wherein the bandgap voltage generator includes a first terminal for providing a first voltage level and a second terminal for providing a second voltage level. The startup circuit includes a switching circuit,... Agent: North America Intellectual Property Corporation

20070096713 - Digital current source: A digital current source used to mirror a reference current is provided. The digitally controlled analog current source multiplies a current from a master mirror transistor producing an output current that is a digitally controlled multiple of the reference current. The circuit comprises a plurality of one bit current mirror... Agent: Hewlett-packard Company Intellectual Property Administration