Electricity: power supply or regulation systems inventions 06/07

20070145956 - Switching power supply device: A switching power supply device has a boost power converter which converts a wide range of AC input voltages into a DC voltage larger than an amplitude of the AC input voltage to supply to a DC-DC converter. The switching power supply device includes a load detection circuit, an input... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070145957 - Switched converter with variable peak current and variable off-time control: A converter coupled to a DC voltage input and connectable to a load, includes a signal responsive switch coupled between a first circuit point and a second circuit point. In lieu of burst mode operation during low load conditions, the peak switch current is varied directly with load condition and... Agent: Mcdermott Will & Emery LLP

20070145958 - Step-up device and step-down device: A control unit performs the first-third controls. The first control controls a group of switch elements so that a step-up voltage is supplied to a voltage output terminal by a pumping action of a step-up voltage accumulating capacity element by applying the reference power source voltage to the reference power... Agent: Mcdermott Will & Emery LLP

20070145959 - Assembling structure for generator: A generator comprises a first core (hollow cylindrical core) 1, a second core (cylindrical columnar core) 2, a plurality of extending core portions (radially extending core portions) 3 interposed between the cores and radially extending at predetermined spacing in the circumferential direction, slots 4 formed between adjacent ones of the... Agent: Wenderoth, Lind & Ponack, L.L.P.

20070145961 - Dc-dc converter and control circuit for dc-dc converter: A DC-DC converter prevents through current from flowing in an output transistor. A first transistor receives an input voltage. A second transistor is connected to the first transistor. A comparator is connected to the second transistor. The comparator detects current flowing through a choke coil based on the potential difference... Agent: Arent Fox PLLC

20070145960 - High voltage pulse generating circuit: A high voltage pulse generating circuit comprises an inductor, a first semiconductor switch and a second semiconductor switch connected in series between both ends of a direct current power supply, and a diode wherein a cathode terminal is connected to one end of the inductor whose other end is connected... Agent: Oliff & Berridge, PLC

20070145963 - Dc converter with halt mode setting means: A DC converter with a halt mode setting is disclosed for preventing the occurrence of over-current while alleviating the increase in the size of circuits, along with a method for setting up such a halt mode. The DC converter includes a semiconductor switch, a clock generator for outputting a clock... Agent: Dickstein Shapiro LLP

20070145962 - Load adaptive power delivery: Embodiments disclosed herein include a power monitor and controller which are used to control the operation of a voltage regulator depending on an operating mode or state of a load device, such as a hard disk drive. By controlling the voltage regulator in this manner, voltage regulator efficiency may be... Agent: Intel Corporation C/o Intellevate, LLC

20070145964 - Dc-dc converter: A DC-DC converter is disclosed that includes a constant voltage circuit outputting a first voltage, a charge pump circuit outputting a second voltage, a current detection circuit converting the output current of the constant voltage circuit into a third voltage and outputting the third voltage, a first detection circuit detecting... Agent: Dickstein Shapiro LLP

20070145965 - Hysteretic switching regulator: A switching regulator circuit including a high-side switch and a low-side switch; an inductor having a first terminal coupled to a common terminal between the high-side switch and the low-side switch, and a second terminal coupled to an output terminal of the switching regulator circuit; a low-pass filter coupled to... Agent: Mcdermott Will & Emery LLP

20070139020 - Coupled inductor output regulation: An information handling system includes a power converter having a first switched inductor to supply current to a load. A second switched inductor is inductively coupled to the first switched inductor. A control circuit activates the second switched inductor in response to a change in the power requirements of the... Agent: Haynes And Boone, LLP

20070139021 - Power supply circuit: an operational amplifier generates a power supply potential from a reference potential. An impedance adjuster adjusts an output impedance of the operational amplifier in accordance with a control signal. A charge accumulator accumulates an output charge of the operational amplifier whose impedance is adjusted by the impedance adjuster. A comparator... Agent: Mcdermott Will & Emery LLP

20070139022 - Method and apparatus for detecting input voltage of pwm cycloconverter: For a PWM cycloconverter, provided are: an input power voltage phase detector 41, for detecting the phase of three-phase AC power; an artificial DC bus voltage detector 42, for detecting the magnitude of the three-phase AC power; an input voltage upper and lower limit calculator 43, for employing the output... Agent: Sughrue Mion, PLLC

20070139023 - Control circuit and control method for dc-dc converter: Disclosed are a control circuit and control method for a comparator-controlled type DC-DC converter that can prevent the generation of audible noise due to the difference between relevant switching frequencies and prevent the increase in the input power source ripple voltage. A phase comparator FC outputs a compared-result signal CONT... Agent: Arent Fox PLLC

20070139025 - Pulse frequency modulated voltage regulator with linear regulator control: A PFM-type voltage regulator circuit converts an unregulated input voltage into a regulated output voltage using a first transistor controlled by a pulse control circuit and a second transistor controlled by a linear regulator circuit. The linear regulator circuit controls the second transistor when the regulated output voltage falls to... Agent: Bever Hoffman & Harms, LLP Tri-valley Office

20070139024 - Voltage regulator with high voltage protection: A method for regulating a voltage in an integrated circuit device includes providing a first regulated output based upon a first voltage input range and subsequently receiving the first regulated output and providing a second regulated output based upon a second voltage input range of the first regulated output. A... Agent: Garlick Harrison & Markison

20070139026 - Harmonics related synchronization for switching regulators: Disclosed is a system and method for synchronizing switching regulators in an electronic system so that switching interference from the regulators may be kept from a given spectral region of interest. The system does this by selecting a fundamental frequency such that each of the switching frequencies corresponding to each... Agent: Honeywell International Inc. Patent Services

20070139027 - Dc-dc converter control circuit and dc-dc converter control method: There are provided a DC-to-DC converter control circuit capable of implementing compatibility between low ripple voltage characteristics, and stable and fast response characteristics at the time of a sudden change in load, and a DC-to-DC converter control method using the same. An add-up signal of an output voltage signal obtained... Agent: Arent Fox PLLC

20070139028 - Current limiting using pwm control: A method and a system for current limiting using PWM control have been provided. The method includes sensing a load current to produce a control voltage. The control voltage is compared with a reference voltage to produce a detected output signal. Thereafter, the detected output signal is delayed and multiplied... Agent: SprinkleIPLaw Group

20070139029 - Robust start-up circuit and method for on-chip self-biased voltage and/or current reference: A reference circuit can include a reference section that provides a reference value for other circuits of an integrated circuit and can be enabled and disabled in response to an enable signal. The reference circuit can include at least a first node, draw a reference current in the enabled mode,... Agent: Haverstock & Owens, LLP

20070139030 - Bandgap voltage generating circuit and relevant device using the same: A bandgap voltage generating circuit includes a circuit coupled to a first node and a second node, driving the first and the second nodes to the same voltage level. A first impedance element is coupled to the first node and a second impedance element is coupled to the second node,... Agent: North America Intellectual Property Corporation

20070132433 - Energy supply apparatus for a location having one or more consumers with said location being remote from power mains: A power supply apparatus in the form of a compact system is provided in order to eliminate the disadvantages associated with known photovoltaic power supply apparatus for locations that are remote from power mains. To this end, an additional combustion generator (11) is used selectively which, together with the prismatic... Agent: Walter Ottesen Patent Attorney

20070132434 - Method and apparatus for improved voltage regulation: A system for voltage regulation may include a first switch comprising a first switch output, a second switch comprising a second switch output and a third switch comprising a third switch output coupled to the first switch output. The system may also include a first inductor coupled to the first... Agent: Buckley, Maschoff & Talwalkar LLC

20070132435 - Step-up type dc-dc converter and method for controlling step-up type dc-dc converter: The invention provides a DC-DC converter capable of being started up in a state in which an input voltage is low and capable of being structured without increasing a circuit size. A back-gate voltage (Vsb) is outputted from a back-gate voltage generating circuit (VBGN), and is inputted to a back... Agent: Arent Fox PLLC

20070132436 - Mcu with on-chip boost converter controller: An integrated system on a chip includes processing circuitry that performs predefined digital processing functions on the chip. The processing circuitry operates responsive to a regulated voltage. An on-chip boost converter generates the regulated voltage responsive to an off-chip voltage provided by an off chip voltage source. The regulated voltage... Agent: Howison & Arnott, L.l.p

20070132438 - Current controlled switching mode power supply: A current controlled switching mode power supply is provided. A turn on/off time of a switching device is adjusted by controlling a leading edge blanking (LEB) time and an external drive current of the switching device by means of a switching controller, thus capable of preventing a switching current from... Agent: Sidley Austin Brown & Wood LLP

20070132437 - Method and cell for controlling the power factor of a power supply line: A method and system controls the power factor associated with a power supply line. The system includes a control circuit having a power factor control cell connected to the power supply line. The power factor control is performed by modulating the conduction time of a bipolar transistor in the control... Agent: Graybeal, Jackson, Haley LLP

20070132439 - Switching regulator: Provided is a switching regulator having an improved power supply voltage variation response characteristic while maintaining the stability of an output voltage to oscillation. An output resistance of an error amplifier is adjusted by a power supply voltage variation response improving circuit to allow a gain of the error amplifier... Agent: Brinks Hofer Gilson & Lione

20070132440 - Frequency hopping control circuit for reducing emi of power supplies: A control circuit having frequency hopping capability is used for reducing the EMI of a power supply. A switching circuit is coupled to a feedback circuit to generate a switching signal for regulating an output of the power supply. A first oscillator determines the switching frequency of the switching signal.... Agent: J.c. Patents, Inc.

20070132441 - Constant voltage source with output current limitation: A constant voltage source is disclosed having an output current control element, which adjusts an output voltage of the constant voltage source by varying its output current, a control circuit, which acquires a measure for an actual value of the output voltage and processes it to a control signal for... Agent: Mcgrath, Geissler, Olds & Richardson, PLLC

20070126407 - Electrical appliance with battery protection: An electrical appliance, such as a power tool, has an electrical motor, a control circuit connected to the motor, and a rechargeable LI-ion battery pack for powering the motor via the control circuit. A battery protection circuit has a detection circuit for detecting an adverse operating condition of the battery... Agent: Leydig Voit & Mayer, Ltd

20070126408 - Power supply device and electronic equipment comprising same: A low-power consumption power supply device that is capable of supplying an adequate current in the case of a heavy load and achieving a rapid transient response when the load fluctuates. The power supply device includes NMOS-type output transistors that are provided between the input power supply that supplies power... Agent: Rohm Co., Ltd. C/o Keating & Bennett, LLP

20070126409 - Method and device for driving power converters: A device and method for driving a converter circuit that supplies a charge via a first electronic switch and a second electronic switch alternately turned on and off. A generator module generates a memory signal, indicating the duration of a first dead-time interval. A delay module, sensitive to the memory... Agent: Graybeal, Jackson, Haley LLP

20070126410 - System and method for implementing high-resolution delay: A system and method is provided for providing a deadband switching time delay. One embodiment of the present invention includes a switching regulator system. The switching regulator system includes a control circuit configured to alternately activate a high-side power switch and a low-side power switch of the switching regulator system.... Agent: Texas Instruments Incorporated

20070126411 - Current transformer with impedance compensation and associated methods: An impedance-compensated current transformer comprising a primary winding, a power source electrically coupled through the primary winding; a secondary winding magnetically coupled to the first primary winding, the secondary winding having a secondary winding impedance and a secondary winding resistance; and an impedance-compensation circuit electrically coupled across the secondary winding;... Agent: Lott & Friedland, P.A.