Electricity: power supply or regulation systems inventions 08/07

20070200536 - Shunt regulator: A shunt regulator for stepping down an input potential to an output potential, has an input for applying the input potential, an output for tapping off the output potential and a voltage drop circuit, across which the voltage difference between the input potential and the output potential drops. It is... Agent: Slater & Matsil LLP

20070200537 - Semiconductor device: A power supply capable of reducing loss of large current and high frequency. In an MCM for power supply in which a high-side power MOSFET chip, a low-side power MOSFET chip and a driver IC chip driving them are sealed in one sealing material (a capsulating insulation resin), a wiring... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070200538 - Regulated power supply with multiple regulators sharing the total current supplied to a load: Disclosed is a digital current sharing structure and method in which a plurality of regulators are configured to share the load current. Current share circuits in each of the regulators are configured to measure and compare the average current provided by that particular regulator with the overall average current provided... Agent: Noblitt & Gilmor, LLC

20070200541 - Control circuit of switching regulator, and power source device and electronic device using the control circuit: A switching regulator is provided which allows a switching to an optimum control method according to a set on which it is to be mounted. A power supply apparatus, which is a step-down type DC-DC converter, includes two blocks, namely a control circuit and a switching regulator. The switching regulator... Agent: Cantor Colburn, LLP

20070200540 - Power source device: A power supply apparatus is provided in the exemplary embodiments. The voltage generation circuit has a switching element. The control circuit controls a switching operation of the switching element. The voltage comparator compares an output voltage from the voltage generation circuit with a predetermined test voltage. The timer circuit is... Agent: Cantor Colburn, LLP

20070200539 - System with linear and switching regulator circuits: An apparatus comprises a circuit having a power supply node and a linear regulator configured to provide a regulated voltage at the power supply node of the circuit. The apparatus further comprises a switching regulator configured to provide input power to the linear regulator from a power source such as... Agent: Nxp, B.v. Nxp Intellectual Property Department

20070200542 - Voltage regulating power supply for noise sensitive circuits: A voltage regulating power supply includes: a switching regulator powered by a supply voltage level, the switching regulator for generating a first output voltage in accordance to a first reference voltage; and a linear regulator coupled to the first output voltage, the linear regulator for generating a second output voltage... Agent: North America Intellectual Property Corporation

20070200543 - Reference voltage generator with less dependence on temperature: A reference voltage generator generates a reference voltage that is less dependent on temperature and can adjust the dependence of the reference voltage on temperature and the reference voltage at the same time independently of each other. The reference voltage generator including a preliminary reference voltage generation unit which generates... Agent: Mills & Onello LLP

20070200544 - Method and apparatus providing final test and trimming for a power supply controller: A power supply controller having final test and trim circuitry. In one embodiment, a power supply controller for switched mode power supply includes a selector circuit, a trim circuit, a shutdown circuit and a disable circuit. The trim circuit includes a programmable circuit connection that can be selected by the... Agent: Blakely Sokoloff Taylor & Zafman

20070200545 - High impedance current mirror with feedback: A current supply includes a current mirror arrangement having a feedback circuit. The current supply includes a current mirror input stage connected to a constant current source providing a reference current; a current mirror output stage providing an output current substantially mirroring the reference current; and a feedback circuit feeding... Agent: Avago Technologies, Ltd. C/o Klaas, Law, O'meara & Malkin, P.C.

20070200546 - Reference voltage generating circuit for generating low reference voltages: an amplifier arrangement (2) having a first and second input (25, 26), an output (27) at which an output voltage (Vout) is available, a differential amplifier stage (20) which has at least two semiconductor components (21, 22; 121, 122), and an output stage (30), the first reference voltage (Vbe/a) being... Agent: Maginot, Moore & Beck Chase Tower

20070194764 - Universal input device for a tap changer: A control system providing a universal input for receiving a control signal for actuating tap-changing equipment. The system accommodates virtually any signal voltage level commonly used for control of the tap-changing equipment, modifies the received signal to a desired format, and inputs the modified signal to a controller for decoding... Agent: St. Onge Steward Johnston & Reens, LLC

20070194766 - Dc-dc converter control circuit, dc-dc converter, and dc-dc converter control method: An object of the present invention is to provide a DC-DC converter control circuit that, even when a plurality of output voltages of DC-DC converters is controlled independently of one another, can maintain a predetermined relationship of voltages established among the output voltages. A first reference voltage with which a... Agent: Arent Fox PLLC

20070194765 - Oscillating signal generation circuit for a multi-channel switching voltage converter: Being applied to a multi-channel switching voltage converter, an oscillating signal generation circuit includes a rectangular wave oscillator, two frequency dividing units, and four oscillators. The rectangular wave oscillator generates a pair of fundamental rectangular waves having an identical fundamental frequency but 180 degrees out of phase with respect to... Agent: North America Intellectual Property Corporation

20070194767 - Step-down circuit with stabilized output voltage: The present invention provides a semiconductor integrated circuit device equipped with a negative feedback amplifier circuit or a step-down circuit which realizes stabilization of an output voltage effectively in response to a variation in power supply voltage. A constant current source is used to cause a bias current for setting... Agent: Stanley P. Fisher Reed Smith LLP

20070194768 - Voltage regulator with over-current protection: A linear regulator with an N-type pass transistor includes an over-current protection circuit. A current sink is used as an indicator for an over-current condition and is coupled to the output of the linear regulator. The indicator is coupled to a feedback logic circuit that controls the current through the... Agent: Gardere Wynne Sewell LLP Intellectual Property Section

20070194769 - Dc-dc converter: There is provided a DC-DC converter including: a main switching element to perform an on-off operation; a first choke coil; an output capacitor; and a diode module. The diode module includes a first series circuit which includes an auxiliary switching element and a resonant capacitor, and a second series circuit... Agent: Oliff & Berridge, PLC

20070194770 - Low voltage bandgap reference circuit and method: A reference generator circuit generates a reference signal for use by a regulator in generating operational power for circuits and devices. A start-up circuit includes a self-biased Voltage reference and a differential amplifier configured to generate a start-up signal to induce current flow in response to the voltage independent reference... Agent: Trask Britt, P.C./ Micron Technology

20070194771 - Power management unit for use in portable applications: A voltage regulator includes a first stage capable of receiving a reference voltage and capable of having a first current flowing through the first stage. A second stage is capable of having a second current flowing through the second stage. A third stage is capable of outputting an output voltage... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20070188154 - High psrr linear voltage regulator and control method thereof: A linear voltage regulator comprises a transistor for converting a supply voltage to an output voltage. By directly monitoring the supply voltage and thereby rapidly responding when the supply voltage suffers a ripple, the linear voltage regulator enhances the stability of the output voltage.... Agent: Rosenberg, Klein & Lee

20070188155 - Semiconductor integrated circuit device and switching power source device using the same: Provided is a semiconductor integrated circuit device having an output portion that outputs via a switch element a predetermined voltage to the outside from a voltage output terminal through a voltage output line and a control portion that performs predetermined control based on a control signal inputted from outside to... Agent: Fish & Richardson P.C.

20070188156 - Voltage regulator output stage with low voltage mos devices: Circuits and methods to provide an LDO output stage implemented with low-voltage devices and still allowing higher voltage levels have been achieved. The output stage has been built using two low voltage MOS devices in series. During the time the regulator is in active mode the second MOS device acts... Agent: Saile Ackerman LLC

20070188157 - High-voltage power supply unit: It is intended to reduce a size and a cost of a high-voltage power supply unit applied to an electrophotographic image forming apparatus and a neon billboard, The high-voltage power supply includes at least a high-voltage transformer and a driving circuit for driving the high-voltage transformer and supplies power to... Agent: Wenderoth, Lind & Ponack, L.L.P.

20070182385 - Method and apparatus for calculating battery state and apparatus for controlling power voltage in vehicle: An apparatus is provided to control a power voltage on a power-supplying line extending from a generator and connecting to a battery and eclectic loads. The apparatus is mounted on a vehicle and comprises a detecting device, a calculator, and a controller. The detecting device detects pairs of voltage and... Agent: Oliff & Berridge, PLC

20070182386 - Power supply driver circuit: A high-side driver circuit for a switching power supply, configured to translate a low-side switching control signal referenced to a first ground rail to a high-side switching control signal referenced to a second, high-side ground rail for driving a switching control connection of a power switching device, the high-side driver... Agent: Knobbe Martens Olson & Bear LLP

20070182387 - Primary side regulated power supply system with constant current output: According to an embodiment, a power supply system has a primary side and a secondary side. An input terminal on the primary side is operable to receive an input voltage. An output terminal on the secondary side is operable to be connected to a load for providing current thereto. Circuitry... Agent: Sidley Austin LLP

20070182388 - Tip having active circuitry: A power supply system includes an adapter to receive power from a power source, and output a regulated output voltage (Vout). A tip receives Vout from the adapter, and output Vout to an electronic device. The tip includes active circuitry to adjust a programming voltage (Vprog). Vprog is fed back... Agent: Pillsbury Winthrop Shaw Pittman LLP

20070182389 - Circuitry and method for limiting peak current from a voltage source: Circuitry (20) and a method are provided for limiting peak current while supplying a constant voltage to a load (42). The circuit (20) comprises an input terminal (32) for coupling to the voltage supply, current sense circuitry (26) coupled to the input terminal (32), a capacitor (30) coupled to an... Agent: Honeywell International Inc.

20070182390 - Drive circuit and switching regulator comprising the same: A drive circuit drives a switch element having a first terminal, a second terminal, and a control terminal. A direct-current voltage is applied to the first terminal. The drive circuit includes a capacitor which is charged when the switch element is in the OFF state, and applies a charged voltage... Agent: Mcdermott Will & Emery LLP

20070182392 - Dc-dc converter capable of performing for wide and dynamic voltage range: This patent specification describes a DC-DC converter which includes a switch configured to control an output voltage, a driver circuit configured to drive the switch, a flip-flop configured to control the driver circuit, an error amplifier configured to compare a feedback voltage of the output voltage with a reference voltage,... Agent: Cooper & Dunham, LLP

20070182393 - Dc/dc converter: A DC/DC converter is supplied such that the desired output setting voltage can be obtained as the load-side output, even when the difference between the power supply voltage and the output setting voltage of the load-side output is large. This DC/DC converter comprises a switching device, a voltage divider, an... Agent: Arent Fox PLLC

20070182391 - Digital double-loop output voltage regulation: A switched mode voltage regulator has a digital control system that includes dual digital control loops. The voltage regulator comprises at least one power switch adapted to convey power between respective input and output terminals of the voltage regulator and a digital controller adapted to control operation of the power... Agent: Brian M Berliner, Esq O'melveny & Myers, LLP

20070182394 - Method and apparatus for maintaining a constant load current with line voltage in a switch mode power supply: A power supply including a regulation circuit that maintains an approximately constant load current with line voltage. In one embodiment, a regulation circuit includes a semiconductor switch and current sense circuitry to sense the current in the semiconductor switch. The current sense circuitry has a current limit threshold. The regulation... Agent: Blakely Sokoloff Taylor & Zafman

20070182396 - Current-controlled dc-dc converter control circuit, current-controlled dc-dc converter, and method for controlling current-controlled dc-dc converter: The invention includes a flip-flop circuit that controls a main switching element of a DC-DC converter by switching and an oscillation circuit that is connected to a set terminal of the flip-flop circuit and outputs an oscillation signal that gradually increases and decreases in oscillation frequency in accordance with an... Agent: Arent Fox PLLC

20070182395 - Switching regulator: A control signal generating circuit (1) comprises a comparator (10) for comparing an output voltage VO with a reference voltage outputted from a reference voltage source (11), a flipflop (12) set by the output of the comparator (10), and a pulse control circuit (13) which receives an input voltage VIN,... Agent: Fish Richardson Citigroup Center

20070182397 - Switching regulator: In a switching regulator circuit having a function of bypassing a power supply and an output terminal, there is provided a switching regulator that obtains a stable output voltage even if the operation of the bypass function is changed over. A reference voltage that is inputted to an error amplifier... Agent: Brinks Hofer Gilson & Lione

20070182398 - Voltage regulator in semiconductor memory device: Provided is a voltage regulator. The voltage regulator includes a level down shifter reducing an applied high voltage, a voltage divider dividing the reduced high voltage to generate a first division result, a comparator comparing a reference voltage to the first division result, and a driver generating an output voltage... Agent: Volentine & Whitt PLLC

20070182399 - Low drop-out dc voltage regulator: A low drop-out DC voltage regulator for regulating a voltage from a DC power supply applied to a load at an output of the regulator and comprising a pass device for controlling flow of current from the power supply to the load so as to control the output voltage at... Agent: Freescale Semiconductor, Inc. Law Department

20070182400 - Temperature independent low voltage reference circuit: A temperature independent low voltage reference circuit comprises a first transistor with a threshold voltage Vth having a negative temperature coefficient. A diode having a forward voltage drop with a negative temperature coefficient coupled with its anode connected to the drain of the first transistor and its cathode connected to... Agent: Koppel, Patrick & Heybl

20070176580 - Semiconductor integrated circuit device: The invention intends to provide a technique that achieves a sufficient phase margin with ease. The circuit includes a power supply circuit that is formed with a phase compensating resistor and a phase compensating capacitor, between a second input terminal of a differential amplifier and a low supply voltage. Thereby,... Agent: Stanley P. Fisher Reed Smith LLP

20070176581 - Control circuit and method for a dc-to-dc converter to improve transient response thereof: For a DC-to-DC converter including a plurality of channels for converting an input voltage to an output voltage, a control circuit comprises a load transient detector to detect the output voltage to provide a quick response signal. In a load transient, the quick response signal triggers a quick transient response... Agent: Rosenberg, Klein & Lee

20070176582 - Constant voltage circuit: A constant voltage circuit is disclosed that includes an output voltage control transistor outputting a current to an output terminal; a first error amplifier circuit part controlling the operation of the output voltage control transistor; a second error amplifier circuit part causing the output voltage control transistor to increase the... Agent: Dickstein Shapiro LLP

20070176583 - Switching control circuit: A switching control circuit is provided which can increase the off period of a switching element when the on period of the switching element is equal to the sum of the minimum pulse period (blanking period (a fixed period during which drain current is not detected after the switching element... Agent: Steptoe & Johnson LLP

20070176585 - Closed-loop digital control system for a dc/dc converter: A control system comprises a DC/DC converter that includes first and second inductances, that receives a first DC voltage and that generates a second DC voltage. A control module selectively charges or discharges the first inductance while discharging or charging the second inductance during a first mode and one of... Agent: Harness, Dickey & Pierce P.L.C

20070176584 - Rv converter with current mode and voltage mode switching: A switched mode converter is disclosed that includes both voltage mode and current mode control. The switched mode converter also includes mode logic for switching between a voltage mode and a current mode. The converter includes current sensing circuitry for sensing the switcher current on the primary side of the... Agent: Patent Administrator Katten Muchin Rosenman LLP

20070176587 - Controller for dc to dc converter: A DC to DC converter to convert an input voltage to an output voltage. The DC to DC converter may include a pair of switches including a high side switch and a low side switch, an inductor coupled to the pair of switches; and a controller. The controller may be... Agent: Grossman, Tucker, Perreault & Pfleger, PLLC

20070176586 - Mobile device for powering, recharging and/or controlling a height-fixed electric appliance: The mobile device for powering, recharging and/or controlling a height-fixed electric appliance includes a first connection structure which can co-operate with a second connection structure, belonging to an electrically-operating appliance. The first connection structure is disposed at the end of a stick or similar element, housing a linking means which... Agent: Egbert Law Offices

20070176589 - Method and apparatus to limit output power in a switching power supply: Techniques are disclosed to adjust a current limit in a switching regulator. One example switching regulator includes a switch to be coupled to an energy transfer element of a power supply. A controller to generate a drive signal is coupled to control switching of the switch to regulate an output... Agent: Blakely Sokoloff Taylor & Zafman

20070176588 - Switching regulator having high speed response: A step-down switching regulator that converts an input voltage to a predetermined lower voltage than the input voltage for output as an output voltage which includes a first switch, an inductor, a second switch, a controller and a detector to detect a proportional voltage of the output voltage and output... Agent: Dickstein Shapiro LLP

20070176590 - Reference voltage circuit driven by non-linear current mirror circuit: Disclosed is a reference voltage circuit which includes control means for exercising control so as to equalize a divided voltage that is output from a first current-to-voltage converting circuit having a diode-connected MOS transistor and voltage-dividing resistors and a divided voltage that is output from a second current-to-voltage converting circuit... Agent: Mcginn Intellectual Property Law Group, PLLC

20070176591 - Voltage reference circuit compensated for non-linearity in temperature characteristic of diode: Disclosed is a reference voltage generating circuit comprising a first reference current circuit including first and second current-to-voltage converting circuits, control means for exercising control in such a manner that prescribed output voltages of the first and second current-to-voltage converting circuits become equal, and a first current mirror circuit for... Agent: Mcginn Intellectual Property Law Group, PLLC