Electricity: power supply or regulation systems inventions

20080100270 - Voltage regulation unit with zener diode and voltage regulation device thereof: A voltage regulation unit with a Zener diode receives a driving voltage outputted from a charge pump and controls a level of the driving voltage to regulate the driving voltage. The voltage regulation unit includes a current mapping unit, a Zener diode and a biasing unit. The current mapping unit... Agent: Rabin & Berdo, PC

20080100271 - Electronic system with apc: An electronic system comprises an automatic power control (APC) unit, an adjustment unit, and a calibration unit. The automatic power control (APC) unit receives a first input signal and a second input signal and generates an output signal. An adjustment unit coupled to the first input terminal of the APC... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20080100272 - Power supply circuit and battery device: A power supply circuit with low noise and low power consumption and a battery device using the power supply circuit. If a voltage VDD is higher than a prescribed voltage, a charge pump circuit 140A is operated in “½ mode” (a step-down ratio of “2”), steps down the voltage VDD,... Agent: Texas Instruments Incorporated

20080100273 - Dc-dc converter and its controlling method: A buck converter circuit and a boost converter circuit, which co-use a main inductor, are connected in series with each other between a DC power-supply and a DC load between output terminals a-b of a rectifier circuit. Moreover, utilizing energy accumulated into first and second auxiliary inductors which are loosely... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080100274 - Power supply circuit, power supply control circuit, and power supply control method: A DC-DC converter and first and second bypass switch circuits are provided in parallel between an input pin and first and second output pins and operate in accordance with a combination of the voltage value of the input pin and the voltage value required for the first output pin. A... Agent: Arent Fox LLP

20080100276 - Current sensing circuit and voltage regulator using the same: A current sensing circuit for sensing an output current generated by a voltage regulator includes a first double-diffused metal-oxide semiconductor transistor and a current-voltage converter. The first double-diffused metal-oxide semiconductor transistor has a first gate terminal to receive an output control signal from a control circuit of the voltage regulator.... Agent: Dickstein Shapiro LLP

20080100275 - 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 technique for regulating a power supply output includes regulating in response to a feedback signal an output current of a power supply in a regulated current region of operation if an output voltage of the power... Agent: Blakely Sokoloff Taylor & Zafman

20080100278 - Cycle by cycle synchronous buck converter control based on external clock: A DC-DC voltage converter having a switching stage including high- and low-side switches connected in series at a switched node across a DC voltage bus; a control circuit; and a feedback loop connected between an output of the switching stage and an input of the control circuit, the control circuit... Agent: Ostrolenk Faber Gerb & Soffen

20080100277 - Switching controller having synchronous input for the synchronization of power converters: A switching control circuit having a synchronous input for the synchronization of power converters is provided. It includes a synchronous input circuit for receiving a synchronous input signal. An oscillation circuit is connected to the synchronous input circuit for generating an oscillation signal in response to the synchronous input signal.... Agent: Jianq Chyun Intellectual Property Office

20080094040 - One cycle control pfc circuit with dynamic gain modulation: A one cycle control power factor correction control circuit in accordance with an embodiment of the present application includes a first input operable to receive a signal indicative of an input voltage to the voltage converter, a second input operable to receive a signal indicative of an inductor current in... Agent: Ostrolenk Faber Gerb & Soffen

20080094041 - Switched capacitor controller and method therefor: In one embodiment, a switch capacitor controller (20) is configured to use a drive signal (45) to drive the switched capacitor (26) with a signal having a time dependent transition time.... Agent: Semiconductor Components Industries, LLC Intellectual Property Dept. - A700

20080094042 - Charging scheme: Mobile devices have limited power sources. In some cases, such as camera flash operations in cell phones or digital cameras, the power required to provide bright illumination is significant and exceeding the battery voltage level. In order to supply burst power or continuous high power to light sources, such as... Agent: Thelen Reid Brown Raysman & Steiner LLP

20080094043 - Power source system: A power source system (1) operable to supply a load circuit (10) with electrical power, including a power-supplying source (2) including a plurality of power source terminals (3) and (4) that differ in output voltage from one another, in which the power-supplying source is operable to supply the electrical power... Agent: Wenderoth, Lind & Ponack L.L.P.

20080094044 - Regulated analog switch: Circuits and methods to achieve a regulated analog switch being capable to provide an output-voltage not exceeding a defined limit are disclosed. In a preferred embodiment a car battery provides a supply voltage up to 40 Volts, wherein a load must not have an output voltage higher than 22 Volts.... Agent: Stephen B. Ackerman

20080094045 - Voltage regulator with output accelerated recovery circuit: A voltage regulator with output accelerated recovery circuit is disclosed, which is substantially a low dropout voltage regulator (LDO) having a comparator and a pull-down transistor, both being connected between the positive feedback input node of its operational amplifier (OP) and the ground end thereof. In a preferred aspect, the... Agent: Wpat, PC

20080094046 - Power and information signal transfer using micro-transformers: A power converter provides power across an isolation barrier, such as through the use of coils. A coil driver has transistors connected in a positive feedback configuration and is coupled to a supply voltage in a controlled manner by measuring the output power and opening or closing a switch as... Agent: Iandiorio Teska & Coleman

20080094047 - Primary side constant output voltage controller: A lower-cost and more precise control methodology of regulating the output voltage of a flyback converter from the primary side is provided, which works accurately in either continuous voltage mode (CCM) and discontinuous mode (DCM), and can be applied to most small, medium and high power applications such cell phone... Agent: Imperium Patent Works

20080094048 - Power supply controller and method therefor: In one embodiment, a power supply controller is configured to reset or override a soft-start reference signal responsively to the output voltage decreasing to a value that is less than a desired regulated value of the output voltage.... Agent: Semiconductor Components Industries, LLC Intellectual Property Dept. - A700

20080094049 - Pwm modulator for scalable converters: A PWM modulator for generating a PWM control signal for operating transistor switches of a phase of a multi-phase converter including a plurality of ramp generators, each ramp generator receiving a dedicated clock input signal corresponding to a phase of the multi-phase converter and providing a ramp signal starting when... Agent: Ostrolenk Faber Gerb & Soffen

20080094050 - Reference current generator circuit: The present invention provides a reference current generator circuit that suppresses variations in the production of parts and attains a voltage reduction, thereby suppressing power consumption. The reference current generator circuit comprises current generating circuit parts, differential amplifying circuit parts, output circuit parts that output first and second reference currents... Agent: Volentine & Whitt PLLC

20080088285 - Voltage stabilizing circuit with constant current circuit: An exemplary voltage stabilizing circuit (2) includes a voltage input port (20), a voltage output port (21), a first transistor (22), a constant current circuit (23), and a feedback control circuit (24). The first transistor has a first base (221), a first emitter (222) connected to the output port, and... Agent: Wei Te Chung Foxconn International, Inc.

20080088284 - Constant on-time regulator with increased maximum duty cycle: A buck switching regulator receives an input voltage and provides a switching output voltage on a switch output node using a minimum on-time, variable off-time feedback control loop. The buck switching regulator includes an on-time control circuit for generating a first signal for turning off the high-side switch at the... Agent: Patent Law Group LLP

20080088283 - Dc-dc converter: According to an aspect of the present invention, there is provided a DC-DC converter including a high-side transistor, a low-side transistor, a first current detector, a second current detector and a driver. The first current detector monitors a first current flowing through the high-side transistor and outputs a first control... Agent: Amin, Turocy & Calvin, LLP

20080088286 - Systems, methods, and apparatuses for implementing a load regulation tuner for linear regulation: Embodiments of the invention may provide for a load regulation tuner that reduces the load regulation effect. The load regulation tuner may include a load current controlled current source that is responsive to a load current from a power transistor of a linear regulator, where the load current controlled current... Agent: Sutherland Asbill & Brennan LLP

20080088287 - Voltage generating apparatus, current generating apparatus, and test apparatus: There is provided a voltage generating apparatus that outputs a power source voltage from a voltage outputting terminal. The apparatus includes a voltage outputting section that outputs the power source voltage according to a current or voltage to be input, a first differential amplification section that compares the power source... Agent: Osha Liang L.L.P.

20080088288 - Time discrete control of a continuous quanity: The invention relates to a time discrete control of a continuous quantity (I1). In order to achieve a higher resolution of the time discrete control and to avoid an unstable control due to low-frequency effects, an artificial, varying disturbance is introduced to at least one signal involved in the time... Agent: Philips Intellectual Property & Standards

20080088289 - Switched mode power supply having variable minimum switching frequency: In a switched mode power supply (SMPS) then selectively operates in continuous current mode (CCM) and discontinuous current mode (DCM), the minimum switching frequency of the SMPS is adjusted by setting a minimum duration for DCM operation. A resistance value applied to an external pin of the SMPS controls the... Agent: Coats & Bennett, PLLC

20080088290 - System and method for detection of multiple current limits: Devices, such as mobile devices, may be exposed to short circuit and output overload events. To protect against such events, mobile devices typically include current limit circuits. Some current limit circuits may involve user programmable function. User programmable function may need accurate current limit detectors. Various embodiments of the present... Agent: Thelen Reid Brown Raysman & Steiner LLP

20080088291 - Electric power converter apparatus: An electric power converter apparatus having a function of converting a power source voltage into an AC voltage having an arbitrary frequency and maintaining an output voltage constant even on the power source variation, in which the electric power converter apparatus decreases the output voltage when the output voltage drops... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080088292 - Constant on-time regulator with internal ripple generation and improved output voltage accuracy: A buck switching regulator formed on an integrated circuit receives an input voltage and provides a switching output voltage on a switch output node using a constant on-time, variable off-time feedback control loop. The buck switching regulator includes an amplifier comparing a feedback voltage to a reference voltage and generating... Agent: Patent Law Group LLP

20080088293 - Electronic leakage reduction techniques: Electronic leakage reduction techniques are provided, whereby an electrical outlet with a programmable computing unit is programmed to detect the current, resistance, power or pattern of current, resistance or power of an attached appliance in the on position and/or off position. Among other aspects, the electrical outlet with a programmable... Agent: Christopher V. Beckman

20080088294 - Independent thresholds for power supply control circuitry: A system may comprise a control system that controls a state of a switch network, the control system having first and second thresholds that determine the state of the switch network based on the relative voltages at an input and an output of the switch network. A scaling network is... Agent: Hewlett Packard Company

20080084193 - Circuit arrangement and method for voltage regulation: A circuit arrangement for voltage regulation including a first transistor coupled between a first node and a third node, a second transistor coupled between a second node and the third node, a third transistor coupled between the third node and an output node, and a control unit that can be... Agent: Dickstein Shapiro LLP

20080084194 - Integrated switch with internally adjusted conduction time: An apparatus and method of providing a pulse width modulated signal that is responsive to a current are disclosed. An integrated circuit according to aspects of the present invention regulates an output of a power supply and includes a switch coupled to receive an external current. The integrated circuit also... Agent: Blakely Sokoloff Taylor & Zafman

20080084195 - Analog combination regulator: Methods and apparatus may provide for multiple input voltage regulation in which a current supplied to an output node divides among voltage regulators according to their respective input voltages when the difference in input voltages falls within a voltage range. When the difference in input voltages falls outside of the... Agent: Fish & Richardson P.c.

20080084197 - Low-noise dc/dc convertor with controlled diode conduction: The synchronous rectifier MOSFET in a Buck or boost DC/DC converter is operated as a current source rather than being turned off, thereby reducing undesirable losses in efficiency, the generation of unwanted electrical and radiated noise, and numerous other potential problems, particularly when the converter is operating in a light-load... Agent: Patentability Associates

20080084196 - Method and apparatus to compensate for supply voltage variations in a pwm-based voltage regulator: A feed-forward correction circuit in a PWM controller adjusts an error signal inversely with respect to a supply voltage for a switching voltage regulator to quickly compensate for changes or transients in the supply voltage. The adjusted error signal is provided to a PWM comparator to control a duty cycle... Agent: Knobbe Martens Olson & Bear LLP

20080084198 - Method and apparatus for a power supply controller responsive to a feedforward signal: An apparatus and method of switching a switch of a power supply in response to an input voltage signal are disclosed. According to aspects of the present invention, a power supply controller includes a switch duty cycle controller coupled to receive a feedback signal and a duty cycle adjust signal.... Agent: Blakely Sokoloff Taylor & Zafman