SEARCH:      Monitor Keywords |  Custom RSS

Electricity: power supply or regulation systems

20130113443 - Semiconductor device: A semiconductor device includes: a unit configured to, in a period before power up, compare a voltage obtained by dividing a voltage of a first voltage node at a first division ratio with a voltage obtained by dividing a voltage of a second voltage node at a second division ratio... Agent:

20130113444 - Multiphase transformer for a multiphase dc-dc converter: A multiphase DC-DC converter is provided that includes a multiphase transformer, the multiphase transformer including a plurality of input voltage terminals and an transformer output voltage terminal, each input voltage terminal associated with a corresponding phase. Each phase is assigned to an input voltage terminal of the plurality of input... Agent:

20130113445 - Power conversion feedback control circuit: A power conversion circuit of two feedback loops is disclosed that includes a feedback control circuit for ramping up or down a commanded voltage to a load (e.g., LEDs). The second feedback loop feeds into the first feedback loop, and the second feedback loop operates at a slower bandwidth than... Agent: Atmel Corporation

20130113446 - Power supply with integrated voltage clamp and current sink: Various exemplary embodiments relate a system and method for supplying power. The system may include an input/output port, a regulator, and a clamp. The regulator may supply power to the input/output port in a first mode, sink current from the input/output port in a second mode, and be disabled in... Agent: Nxp B.v.

20130113447 - Low dropout voltage regulator including a bias control circuit: A low dropout (LDO) regulator includes a voltage regulation loop for providing an output voltage to an output terminal, where the output voltage is proportional to a reference voltage. The voltage regulation loop includes a current bias input for receiving a bias current. The LDO regulator also includes a bias... Agent:

20130113448 - Coil inductor for on-chip or on-chip stack: A coil inductor and buck voltage regulator incorporating the coil inductor are provided which can be fabricated on a microelectronic element such as a semiconductor chip, or on an interconnection element such as a semiconductor, glass or ceramic interposer element. When energized, the coil inductor has magnetic flux extending in... Agent: International Business Machines Corporation

20130113450 - Mixed mode compensation circuit and method for a power converter: A mixed mode compensation circuit and method for a power converter generate a digital signal according to a reference value and a feedback signal which is related to the output voltage of the power converter, convert the digital signal into a first analog signal, offset the first analog signal with... Agent: Richtek Technology Corporation

20130113449 - Testing a switched mode supply with waveform generator and capture channel: A test method and system are provided for testing a switched mode power supply in open loop on an automated test equipment device by applying a low frequency waveform signal (209) to a compensator filter (225) and simultaneously capturing and processing the input (223) and output (222) to the compensator... Agent:

20130113451 - Intelligent switching controller and power conversion circuits and methods: A power conversion circuit comprising a voltage estimation circuit, a current estimation circuit, and a pulse width modulation circuit. The voltage estimation circuit is configured to receive a voltage corresponding to an input of an inductor of the power conversion circuit and generate an estimate of an output voltage of... Agent: Marvell World Trade Ltd.

20130113452 - System and method for power conversion for renewable energy sources: A power converter is configured to transfer energy from a photovoltaic (PV) array to a DC bus internal to the power converter. The power converter executes a modulation module to selectively connect one or more switching devices between the output of the PV array and the DC bus. The power... Agent: Zbb Energy Corporation

20130113453 - Earth leakage power supply with bypass: A power supply circuit for a remote load and a local controller includes a line connection receiving electrical power from an AC source. A load connection connects to the remote load. A switch is located between the line and load connections. Power is supplied to the load from the AC... Agent: General Electric Company

20130113454 - Signal generating circuit: A signal generating circuit includes: a first signal amplifying circuit arranged to generate a first amplified signal according to a first supply current, a reference signal, and an output signal of the signal generating circuit; a soft-start circuit arranged to generate a control signal according to a soft-start signal; a... Agent:

20130113455 - Power supply management apparatus and burglarproof power supply system that uses the power supply management apparatus: A power supply management apparatus and a burglarproof power supply system that uses the power supply management apparatus. The power supply management apparatus manages power supplied to an electronic apparatus, such as a vehicle, a solar apparatus, a mobile communication apparatus or a notebook computer that need power to operate.... Agent:

20130106370 - Method and device for controlling soft start of a power supply: A method for controlling soft start of a power supply performs soft start under an open loop control mode after the power supply is started, enters a switching control mode when output voltage of the power supply reaches a reference value, starts to convert the output voltage of the power... Agent: Acbel Polytech Inc.

20130106369 - Power supply for industrial process field device: A wireless industrial process field device for use in controlling or monitoring a process variable of an industrial process includes a process interface element configured to sense or control the process variable of the industrial process. Process device circuitry includes a process interface circuit configured to measure or control the... Agent:

20130106371 - Solar cell system, electronic device, and structure: Disclosed herein is a solar cell system including: a solar cell; a load controller connected to the solar cell, the load controller being capable of controlling a load applied to the solar cell; an output measuring unit for measuring a power generation output of the solar cell; and an output... Agent: Sony Corporation

20130106372 - Transformer voltage regulation: In various embodiments, a transformer provides a voltage. A regulating circuit coupled to the transformer regulates the voltage to provide either a first voltage or a second voltage that is independent of the first voltage.... Agent:

20130106374 - Power supply controller and method therefor: In one embodiment, a switching power supply circuit includes a power source configured to supply supplemental power to the high side driver in parallel with the bootstrap capacitor.... Agent:

20130106373 - Systems and methods for adaptive body braking control in a voltage regulator: The present application is directed to a voltage regulator including a high-side and a low-side power transistor. The high-side and the low-side power transistors are operable to output power to a transient load. The voltage regulator further includes control circuitry coupled to the high-side low-side power transistors and the transient... Agent: Dell Products L.p.

20130106377 - Control voltage delay device, digital power converter using the same, and driving method thereof: Exemplary embodiments relate to a control voltage delay device, a digital power converter, and a driving method of a digital power converter. The control voltage delay device generates an output clock signal and a reference clock signal for controlling an output voltage of the digital power converter. The control voltage... Agent: Fairchild Korea Semiconductor Ltd.

20130106379 - Controller compensation for frequency jitter: A controller for use in a power supply includes a drive signal generator, a jitter signal generator, a compensator signal generator, and an arithmetic operator. The drive signal generator is coupled to output a drive signal in response to an input signal. The jitter signal generator is coupled to provide... Agent: Power Integrations, Inc.

20130106375 - Programmable switching for switched capacitor dc-dc converter: Representative implementations of devices and techniques minimize switching losses in a switched capacitor dc-dc converter. The impedance of one or more switches is adjusted and individual switches are selected for operation based on an existing load.... Agent:

20130106376 - Resonance frequency adjusting circuit: A resonance frequency adjusting circuit in electronic communication with a power supply and a load connected to the power supply includes a first LC filter, a capacitor, a switch, and a frequency detecting and control module. The first LC filter circuit is electrically connected between the power supply and the... Agent: Hon Hai Precision Industry Co., Ltd.

20130106378 - Rf switching converter with ripple correction: This disclosure relates generally to radio frequency (RF) switching converters and RF amplification devices that use RF switching converters. In one embodiment, an RF switching converter includes a switching circuit operable to receive a power source voltage, a switching controller configured to switch the switching circuit so that the switching... Agent: Rf Micro Devices, Inc.

20130106382 - Digital controller for switched capacitor dc-dc converter: Representative implementations of devices and techniques minimize switching losses in a switched capacitor dc-dc converter. A digital controller is used to control switching, based on an existing load.... Agent:

20130106380 - Digital slope control for switched capacitor dc-dc converter: Representative implementations of devices and techniques minimize switching losses in a switched capacitor dc-dc converter. The slope of the charging and/or discharging phase may be modified, smoothing the transitions from charge to discharge and/or discharge to charge of the switched capacitor.... Agent:

20130106381 - Pulse frequency modulation control for switched capacitor dc-dc converter: Representative implementations of devices and techniques minimize switching losses in a switched capacitor dc-dc converter. Variable frequency control, including Pulse frequency modulation, is used to control switching based on an existing load.... Agent:

20130106383 - Control circuit and control method for power conversion device: By adding a suppression amount for suppressing an overshoot or undershoot that attenuates with time during an overshoot or undershoot period, the overshoot or undershoot can be suppressed within a short time and the output can be made close to a normal value. When an output has overshot, an overshoot... Agent: Mitsubishi Electric Corporation

20130106384 - Voltage converting circuit: A voltage converting circuit includes a power supply, a buck circuit a buck circuit electronically connected to the power supply, a current detection circuit electronically connected to the buck circuit and a PWM controller electronically connected to the buck circuit and the current detection circuit. The buck circuit is configured... Agent: Hong Fu Jin Precision Industry (shenzhen) Co., Ltd.

20130106385 - Converter with hysteretic control: A hysteretic power converter constituted of: a switched mode power supply; a hysteretic comparator, a first input of the comparator arranged to receive a feedback signal providing a representation of the output voltage of the switched mode power supply and a second input of the comparator arranged to receive a... Agent: Microsemi Corporation

20130106387 - Power supply: A power supply includes an output terminal, a power converting unit, an internal circuit and an internal power supplying unit. The output terminal outputs a first power. The power converting unit is coupled with the output terminal and receives the first power. The power converting unit converts the first power... Agent:

20130106386 - Power supply system: A power supply system includes an output node, an internal power supply unit, a boost storage unit, a charging path unit, and a discharging path unit. The output node is coupled to a load device. The internal power supply unit includes a gold capacitor unit for storing an internal storage... Agent: Quanta Computer Inc.

20130106388 - Semiconductor device: In order to reduce parasitic inductance of a main circuit in a power supply circuit, a non-insulated DC-DC converter is provided having a circuit in which a power MOS·FET for a high-side switch and a power MOS·FET for a low-side switch are connected in series. In the non-insulated DC-DC converter,... Agent:

20130106393 - Bandgap reference voltage generator: The invention provides a bandgap reference voltage generator. In one embodiment, the bandgap reference voltage generator includes a first current generator, a second current generator, and an output voltage generator. The first current generator generates a first current with a positive temperature coefficient. The second current generator generates a second... Agent: Silicon Motion, Inc.

20130106390 - Curvature-compensated band-gap voltage reference circuit: A curvature-compensated band-gap voltage reference circuit includes an operational amplifier and a high-frequency gain stage coupled to an output of the operational amplifier. The circuit also includes an electronic device and a matching circuit.... Agent: Qualcomm Incorporated

20130106389 - Low power high psrr pvt compensated bandgap and current reference with internal resistor with detection/monitoring circuits: A system for generating a high PSRR bandgap and current reference that includes a bandgap reference circuit for generating a first input and generating a bandgap reference voltage output. A current reference circuit for receiving a second input and generating a reference current. An internal resistor coupled to the first... Agent:

20130106391 - Low voltage, low power bandgap circuit: A bandgap voltage generating circuit for generating a bandgap voltage has an operational amplifier that has two inputs and an output. A current mirror circuit has at least two parallel current paths. Each of the current paths is controlled by the output from the operational amplifier. One of the current... Agent: Silicon Storage Technology, Inc.

20130106392 - Reference current source circuit and system: A reference current source circuit includes a reference voltage generating module, a voltage buffer, an equivalent resistance, a filter capacitor, a current mirror module and a reference current outputting terminal. The voltage buffer includes an operational amplifier and a first FET. The current mirror module includes a second FET and... Agent: Ipgoal Microelectronics (sichuan) Co., Ltd.

20130106394 - Constant current circuit and voltage reference circuit: Provided is a constant current circuit in which an enhancement N-channel transistor can operate in a weak-inversion state even at high temperatures. A constant current circuit includes a current mirror circuit, a constant-current generation block circuit, and an off-leak circuit, wherein the off-leak circuit is constituted by a first enhancement... Agent: Seiko Instruments Inc.

20130106395 - System and method for providing a low-power self-adjusting reference current for floating supply stages: A system and method for providing an accurate current reference using a low-power current source is disclosed. A preferred embodiment comprises a system comprises a first section and a second section. The first section comprises a first simple current reference, an accurate current reference, and a circuit that generates a... Agent: Infineon Technologies Ag

20130099759 - Electric power steering apparatus: An electric power steering apparatus includes a power supply and a power supply management unit that controls an operation of the power supply. The power supply includes a main power supply, an auxiliary power supply connected in series to the main power supply, a boost circuit that charges the auxiliary... Agent: Jtekt Corporation

20130099760 - Direct-current stabilized power supply device: A direct-current stabilized power supply device that drops a voltage from a power supply of a solar cell in which output power is unstable, and supplies a stable voltage necessary for measurement equipment and the like.... Agent: Onamba Co., Ltd.

20130099761 - Switching-mode power supply with ripple mode control and associated methods: The present invention discloses a SMPS. The SMPS comprises an output port, configured to supply a load; a control signal generator, having an input and an output configured to provide a first control signal; a first switch configured to receive the first control signal and regulate the voltage at the... Agent:

20130099762 - Systems and methods for counteracting overvoltage events: This disclosure involves methods and systems for reducing the voltage by a circuit such as a switching regulator during an overvoltage event by draining current from a voltage source when voltage exceeding a desired level is generated.... Agent: Qualcomm Atheros, Inc.

20130099763 - Systems and methods for suppressing undesirable limit cycles in switching regulators: This disclosure involves methods and systems for suppressing undesired limit cycles in switching regulators by determining when a limit cycle causes the inductor to charge for a time greater than the clock period and destabilizing such cycles.... Agent: Qualcomm Atheros, Inc.

20130099764 - System and method to regulate voltage: A system and method to regulate voltage is disclosed. In a particular embodiment, a voltage regulator includes an error amplifier, a voltage buffer responsive to the error amplifier, and a first transistor responsive to the voltage buffer and coupled to a voltage supply source. A second transistor is coupled to... Agent: Qualcomm Incorporated

20130099765 - Modular battery disconnect unit: A system according to the principles of the present disclosure includes a battery disconnect unit (BDU) and a cartridge. The BDU includes a first positive terminal, a first negative terminal, a second positive terminal, a second negative terminal, a first current path, a second current path, a first switch, and... Agent: Cobasys, LLC

20130099766 - Voltage regulator with optimal efficiency selection and a master-slave zero cross detection configuration: A voltage regulator includes a first phase power stage, a second phase power stage, and a controller. The first phase power stage includes a zero cross detection circuit configured to measure a current level for the first phase power stage, and to cause a diode emulation state in the first... Agent: Dell Products, Lp

20130099768 - Control circuit and electronic apparatus using the same: A control circuit includes: a first switching device that includes a source, a gate, and a drain; a negative voltage generating circuit that generates, from a pulse width modulation signal that controls the gate of the first switching device, a negative potential voltage which is equal to or smaller than... Agent: Fujitsu Limited

20130099767 - Drivers having t-coil structures: A driver includes a first driver stage having at least one input node and at least one first output node. The first driver stage includes a T-coil structure that is disposed adjacent to the at least one first output node. The T-coil structure includes a first set of inductors each... Agent: Taiwan Semiconductor Manufacturing Company, Ltd.

20130099769 - Current source circuit with high order temperature compensation and current source system thereof: A current source circuit with high order temperature compensation, includes a reference voltage terminal, a first power module, a second power module, a control module, a current source output module and a bias current source module. The control module includes a first field-effect tube (FET), a second FET, and a... Agent: Ipgoal Microelectronics (sichuan) Co., Ltd.

20130099770 - Reference power supply circuit: A reference power supply circuit includes an adjustable resistance network and a bandgap reference power supply circuit, in which the adjustable resistance network includes a first resistor end and a second resistor end, the resistance between the first resistor end and the second resistor end varies with a process deviation;... Agent:

20130099771 - Low voltage detection circuit: Disclosed is a low voltage detection circuit. The low voltage detection circuit includes, a voltage comparison circuit, an output stage, an electric current circuit, and a judgment circuit. When the voltage comparison circuit detects that the voltage of the detection target is a predetermined voltage value or less, an output... Agent:

20130093402 - Inductive load controlling device: An inductive load controlling device in which a target current value is reached in a short time while suppressing overshoot, undershoot, and ringing, including a target value filter that receives a target current value of electric current to be supplied to the load and exhibits differential characteristics using a plurality... Agent: Fuji Electric Co., Ltd.

20130093403 - Methods and circuits for improving the dynamic response of a dc-dc converter: Methods and circuits are described herein which may be used to improve the unloading transient response of a DC-DC converter. In some embodiments the transient response may be improved by improving the way MOSFET switches in the buck converter are controlled at the point in time when a current transient... Agent:

20130093404 - Apparatus and method for protecting supply modulator: An apparatus and a method for recognizing an electric over-stress of a hybrid supply modulator including a linear regulator and an Switching Mode Power Supplier (SMPS), and protecting a network from the electric over-stress are provided. The hybrid supply modulator includes at least one sensing unit and at least one... Agent: Samsung Electronics Co. Ltd.

20130093405 - Buck converter: A buck converter comprising a controller arranged to monitor an output voltage of the converter, the controller comprising: a comparator arranged to compare an output voltage at an output of the buck converter with a reference voltage, and a modification circuit within the comparator or connected to a modification signal... Agent:

20130093406 - Power regulator and controlling method thereof: Methods and circuits related to power regulation are disclosed. In one embodiment, a power regulator for converting an input electrical signal to an output electrical signal to supply power to a load, can include: (i) a power stage having switching devices and a filter; (ii) a regulation signal generator for... Agent: Silergy Semiconductor Technology (hangzhou) Ltd

20130093407 - Dc-dc converter: Disclosed is a DC-DC converter, including: a switch unit configured to generate output voltage for driving a load; an output voltage monitoring unit including a reference voltage generator generating reference voltage and a reference voltage capacitor maintaining the reference voltage when power of the reference voltage generator is interrupted and... Agent: Electronics And Telecommunications Research Institute

20130093408 - Asymmetrical coupled inductors and associated methods: An asymmetrical coupled inductor includes a first and a second winding and a core. The core is formed of a magnetic material and magnetically couples together the windings. The core is configured such that a leakage inductance value of the first winding is greater than a leakage inductance value of... Agent: Volterra Semiconductor Corporation