Electricity: power supply or regulation systems inventions 09/07

20070222421 - Apparatus and methods for controlling operation of a single-phase voltage regulator in a three-phase power system: Provided are methods for controlling operation of a voltage regulator of a single-phase of a three-phase power system to regulate a measured voltage. One of the methods includes recording a first elapsed time between detecting a first excursion of the measured voltage from an in-band area to an out-of-band area,... Agent: Cook, Alex, Mcfarron, Manzo, Cummings & Mehler Ltd

20070222422 - Power supply device and electrical device equipped with the same: A power supply device includes a first transistor connected in series between an input terminal to which an input voltage is applied and an output terminal from which an output voltage is led out; a second transistor connected between the input terminal and the output terminal in parallel with the... Agent: Rohm Co., Ltd. C/o Keating & Bennett, LLP

20070222423 - Switching regulator capable of compensating output errors: A switching regulator includes a power stage, an output capacitor, a first reference voltage generator, a comparator, a constant-time trigger, an error amplifier, and an operator. The power stage includes a first switch, a second switch, and an output inductor. The comparator is coupled to the output inductor and the... Agent: North America Intellectual Property Corporation

20070222425 - Series regulator circuit: A series regulator circuit that enables detection of a voltage drop and reduces consumed current in a static state. A constant current source, which is connected to a power supply voltage line, is connected to a bipolar transistor. The bipolar transistor includes an emitter terminal and base terminal connected to... Agent: Freescale Semiconductor, Inc. Law Department

20070222426 - Wireless powering device, an energiable load, a wireless system and a method for a wireless energy transfer: A wireless resonant powering device 1 according to the invention comprises a first inductor winding 3, which is arranged to form a transformer 9 with the inductor winding 13 of the energizable load 11. The first inductor winding 3 is arranged to form a resonant circuit 5, which may comprise... Agent: Philips Intellectual Property & Standards

20070216372 - Switching voltage regulator with low current trickle mode: For load currents greater than a threshold current, the voltage regulator operates in a conventional manner by fully turning on and off one or more switching transistors at a duty cycle necessary to maintain the output voltage a regulated voltage. Upon a load current below a threshold being detected, a... Agent: Patent Law Group LLP

20070216373 - Universal three phase controllers for power converters: The systems and methods described herein provide for a universal controller capable of controlling multiple types of three phase, two and three level power converters. The universal controller is capable of controlling the power converter in any quadrant of the PQ domain. The universal controller can include a region selection... Agent: Orrick, Herrington & Sutcliffe, LLPIPProsecution Department

20070216374 - Switching regulator: A switching regulator, has first and second switching regulator units, and first and second PLL circuit units that are provided in the first and second switching regulator units respectively, input first and second control pulse signals (PIN1, PIN2) respectively, phases of which are shifted from each other, and control the... Agent: Oliff & Berridge, PLC

20070216375 - Power dimmer: A circuit for controlling the power in a load supplied by an A.C. voltage and directly connected to a first terminal of application of the A.C. voltage, including two isolated-gate bipolar transistors, connected in anti-parallel between a second terminal of application of the A.C. voltage and the load; circuitry for... Agent: Stmicroelectronics Inc. C/o Wolf, Greenfield & Sacks, P.C.

20070216376 - Semiconductor integrated circuit and system guaranteeing proper operation under low-temperature condition: A semiconductor integrated circuit includes a measurement circuit configured to detect a measuring quantity dependent on temperature, and a heating circuit configured to generate heat in response to a detection, by the measurement circuit, of the measuring quantity indicating that the temperature is lower than a predetermined level.... Agent: Arent Fox PLLC

20070216377 - Power electronics equipments: Power electronics equipment includes a switching device directing current flow to a load and interrupting the current flowing to the load, a control circuit generating a control signal directing the conduction and non-conduction of the switching device, a driver circuit driving a control terminal of the switching device based on... Agent: Kanesaka Berner And Partners LLP

20070216378 - Circuit and method for controlling dc-dc converter: A DC-DC converter for generating a stable output voltage and being applicable to a transient load fluctuation. The DC-DC converter detects an input current, and compares the input current with a rated current of an external power supply. The DC-DC converter controls a positive charging current that is supplied to... Agent: Arent Fox PLLC

20070216379 - Power supply unit and portable device: A switching type power supply unit adapted to generate a positive output voltages though conversion of a power supply voltage has an negative output voltage generation circuit switchably connected, via a changeover switch, between the first node of a coil and a switch and the second node receiving the power... Agent: Rohm Co., Ltd. C/o Keating & Bennett, LLP

20070216380 - Apparatus and method for producing signal conveying circuit status information: Apparatus is configured for producing an output signal indicating an operating status of a monitored circuit. An input signal relating to the monitored circuit is received at an input node. A pulse train generator, coupled to the input node, is configured for generating a pulse train of a prescribed repetition... Agent: Mcdermott Will & Emery LLP

20070216381 - Linear regulator circuit: A linear regulator circuit for suppressing power supply noise that propagates to an output voltage. An LDO circuit functioning as the linear regulator circuit is provided with an output transistor including a source for receiving input voltage, a drain for outputting the output voltage, and a control terminal. An error... Agent: Arent Fox PLLC

20070216382 - Low drop-out linear regulator including a stable compensation method and circuit for particular use in automotive applications: A compensated regulator includes a transconductance stage having a positive input for receiving a reference voltage, a negative input, and an output, an adjustable compensation block coupled between the output of the transconductance stage and ground, a feedback circuit having a first node coupled to the output of the compensated... Agent: Stmicroelectronics, Inc.

20070216383 - Soft-start circuit and method for low-dropout voltage regulators: A low drop-out voltage regulator having soft-start. A low drop-out regulator circuit is provided having an input node, an output node, a power FET connected by a source and drain between the input node and the output node, and a feedback circuit having an output connected and providing a control... Agent: Texas Instruments Incorporated

20070216385 - Switch mode power converter having multiple inductor windings equipped with snubber circuits: The present switch mode power converter having multiple inductor windings equipped with snubber circuits uses a small value inductor that has at least one properly oriented secondary winding, and ultra fast diodes interconnect the primary and the secondary windings of this inductor for providing protection against momentary short circuits, reductions... Agent: Patton Boggs LLP

20070216384 - Circuit and method for quickly turning off mos device: An OTA driving an MOS device needs to turn it off quickly to minimize overshoot during a heavy to light load state. The drains of the MOS device can be used to accelerate turning off the MOS device. A first drain is connected to the gate of the MOS device.... Agent: Bever Hoffman & Harms, LLP Tri-valley Office

20070216386 - Electric power supply circuit and electronic device: An electric power supply circuit includes a first switching element that turns on or off according to an external signal; an inductor capacitor circuit provided between the power supply and the load that charges or discharges electric power provided by the power supply according to the on or off state... Agent: Dickstein Shapiro LLP

20070216387 - Switching regulator and method for changing output voltages thereof: A switching regulator including two switching elements and a control switching part. The two switching elements perform a switching operation according to a control signal to control an output voltage. One of the two switching elements is larger in ON-resistance and smaller in control electrode capacitance than the other. The... Agent: Dickstein Shapiro LLP

20070216389 - Step-down dc-to-dc converter: A step-down DC-to-DC converter includes an input terminal, an output terminal, a switching transistor, and a rectifying transistor. The switching circuit is connected between the input terminal and the output terminal and is configured to reduce an input voltage down to a predetermined voltage and to output the predetermined voltage... Agent: Dickstein Shapiro LLP

20070216388 - Switching regulator: A switching regulator including an inductor and a switching transistor and having a normal operational mode and a light-load operational mode is disclosed. The switching regulator includes an operational mode switching part configured to switch the normal operational mode and the light-load operational mode, and a light-load detection part configured... Agent: Dickstein Shapiro LLP

20070216391 - Controller: A controller (1) comprises a comparator (10) which compares an input signal (Vo) with a reference signal (Vr) to obtain an error signal (ER). An integrator (11) applies an integrating action on the error signal (ER) to obtain a control signal (ICO). The integrator (11) allows influencing the integrating action.... Agent: Nxp, B.v. Nxp Intellectual Property Department

20070216390 - High-efficiency high-voltage difference ratio bi-directional converter: The aim of this invention focuses on the development of a high-efficiency bidirectional converter for power sources with great voltage diversity. In traditional bidirectional converters, the circuit topology with transformer form is the common usual. Moreover, the soft-switching techniques including zero-voltage-switching (ZVS) or zero-current-switching (ZCS) are usually used for alleviating... Agent: Hdsl

20070216392 - Controlling inductive power transfer systems: An inductive power transfer system comprises a primary unit (10), having a primary coil (12) and an electrical drive unit (14) which applies electrical drive signals to the primary coil so as to generate an electromagnetic field. The system also comprises at least one secondary device (30), separable from the... Agent: Stites & Harbison PLLC

20070210764 - Method and apparatus for power conversion and regulation: Techniques are disclosed to control a power converter with multiple output voltages. One example regulated power converter includes a 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 transfer element... Agent: Blakely Sokoloff Taylor & Zafman

20070210765 - Power converter with coupled inductor: A power converter has simple coupled inductor circuit process the power and drive the semiconductor switch perfectly to reduce the power loss and eliminate the needs of high circuit complexity controller, improve the conversion efficiency and reduce the component counts to reach low cost and high reliability at one time.... Agent: Rosenberg, Klein & Lee

20070210766 - Sensor-less, low frequency adaptive current limiter and methods for limiting inductive current using the same: Devices and systems that use an adaptively limited PWM duty-cycle to control a circuit and methods and control programs to operate and to control the devices and systems to adaptively limit the PWM duty-cycle are disclosed. The devices and systems are capable of adjusting the duty-cycle such that the actual... Agent: Weingarten, Schurgin, Gagnebin & Lebovici LLP

20070210767 - Controller for a permanent magnet generator and a generator in combination with such a controller: A generator controller for controlling a permanent magnet generator where each phase of the generator is connectable to a DC link via electrically controllable switches, the controller characterised by a data processor adapted to receive a measurement of generator current output and a demand current, and to form a current... Agent: Eric T. Jones Reising, Ethington, Barnes, Kisselle, P.C.

20070210768 - Drive circuit for driving power device: A drive circuit for driving a power device has a level shift circuit which level-shifts an ON signal and an OFF signal for controlling the power device in ON and OFF states, respectively, and which outputs the level-shifted ON and OFF signals, a mask circuit which stops transmission of the... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070210769 - Apparatus for controlling temperature of secondary battery, vehicle battery pack, and system and program for heating secondary battery: An apparatus, which controls the temperature of a secondary battery formed by combination of a plurality of single cells or a plurality of battery modules each made by series connection of multiple single cells, prevents variations in the temperature or voltage of the single cells or the battery modules, which... Agent: Christensen, O'connor, Johnson, Kindness, PLLC

20070210770 - Ac-coupled equivalent series resistance: AC-coupled equivalent series resistance (ESR) is introduced into a control circuit to provide additional stability in the feedback control loop. A sub-circuit emulates the effect of a higher value ESR in the output capacitor. The additional ESR in the feedback control loop inserts a zero into the transfer function that... Agent: Koppel, Patrick & Heybl

20070210771 - High efficiency variable voltage supply: There is disclosed a power supply stage (202), comprising: generating means for generating a power supply voltage from a high efficiency variable voltage supply (204) in dependence on a reference signal; adjusting means for receiving the generated power supply voltage (220), and adapted to provide an adjusted selected power supply... Agent: Demont & Breyer, LLC

20070210774 - Switching power supply circuitry: An output voltage VC obtained by boosting an input voltage VIN by means of a charge pump control circuit 3 of a charge pump 102 is supplied as a power supply voltage to a control circuit 4 of a step-up converter. It is thus possible to eliminate the need for... Agent: Steptoe & Johnson LLP

20070210773 - Automatic configuration for linear mode of switching power supply: A method and apparatus for a Regulator that automatically configures to work in either SMPS mode or linear mode are disclosed. in one embodiment, the method includes inputting a constant current source to a CBoot_pin for a first predetermined amount of time upon enabling an autodetect circuit by a Regulator... Agent: Wade James Brady Iii Texas Instruments Incorporated

20070210772 - Pfm and current controlled switching regulator: A circuit and method for controlling a switching regulator utilize a combination of variable off-time control (or frequency control) and variable peak current control to achieve high efficiency at a wide range of load conditions. A non-linear control circuit receives an error voltage and generates a first control signal for... Agent: Patent Law Group LLP

20070210775 - Power supply integration for low power single chip rf cmos solutions for use in battery operated electronic devices: An integrated circuit power supply includes a DC-to-DC converter and a low drop-out voltage regulator. The DC-to-DC converter efficiently performs voltage conversion and provides power to the low-dropout voltage regulator. The low-dropout voltage regulator rejects noise and regulates an output voltage. The combination of the DC-to-DC converter and a low-dropout... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20070210776 - Switching power source apparatus: There is provided a switching power supply device which is capable of reducing an influence of noises and also reducing a consumption current of a control circuit. A pseudo-random number generator circuit (12) generates random number data for determining frequencies of switching signals of MOS transistors (M1) and (M2). A... Agent: Brinks Hofer Gilson & Lione

20070210779 - 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

20070210777 - Controller for a power converter and method of operating the same: A controller for use with a power converter including a switch configured to conduct to provide a regulated output characteristic at an output of the power converter, and method of operating the same. In one embodiment, the controller includes a linear control circuit, coupled to the output, configured to provide... Agent: Slater & Matsil, L.L.P.

20070210778 - Current controlled swithching regulator: Systems and methods for current controlled switching voltage regulators. In one embodiment of the present invention, a voltage regulator device comprises a switching stage for selectively charging an output voltage and a current control mechanism to limit a range of voltages for controlling the switching stage. In one embodiment, a... Agent: Wagner, Murabito & Hao LLP

20070210780 - Switching transistor driver circuit: Of a pair of switching transistors connected in series between a high voltage power source and the ground, when the switching transistor on the high potential side is controlled by an RS flip-flop in response to an input signal, in order to prevent a malfunction caused by the influence of... Agent: Steptoe & Johnson LLP

20070210782 - Buck-boost dc/dc converter: A buck-boost DC/DC converter includes an inductor and a power stage having a set of switches selectively connecting the inductor between a voltage input, a voltage output and a reference level in accordance with buck or boost mode. The converter has a switch control providing control signals to the set... Agent: Texas Instruments Incorporated

20070210781 - Switched capacitor regulator for driving high load current: A switched capacitor regulator in accordance with the present invention comprises a DC voltage source, a plurality of switches, a pumping capacitor, and a load capacitor. The plurality of switches may comprise semiconductor switches implemented in an integrated circuit (IC). The plurality of switches is configured to operate the switched... Agent: Stmicroelectronics, Inc.

20070210783 - Pwm current controlling apparatuses capable of optimally correcting load current: In a current controlling apparatus for controlling a load current flowing through a load, a reference level generating circuit generates a reference level signal, and a reference signal generating circuit generates a reference signal in accordance with the reference level signal. A bridge circuit includes a plurality of semiconductor elements... Agent: Mcginn Intellectual Property Law Group, PLLC

20070210784 - Current source with adjustable temperature coefficient: A current source with adjustable temperature coefficient is provided. The current source uses a first current generation unit and a second current generation unit to respectively produce a positive temperature coefficient current and a negative temperature coefficient current. A current addition unit is used to add the positive and negative... Agent: Jianq Chyun Intellectual Property Office