Patents
Patents for G05F 1 - Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems (37,749)
06/2009
06/18/2009US20090153108 Power management efficiency using DC-DC and linear regulators in conjunction
06/18/2009US20090153107 Method and apparatus for regulating electrical power from a non-perpetual power source
06/18/2009DE10349663B4 Elektrische Energiequellevorrichtung mit mehreren Ausgängen und elektronische Fahrzeugsteuervorrichtung An electric power source device having a plurality of outputs and electronic vehicle control apparatus
06/18/2009DE102007059838A1 Verfahren und Versorgungssystem für den Betrieb von einer Mehrzahl von unabhängigen elektrischen Vorrichtungen sowie elektrische Vorrichtung und Steckadaptersystem Process and supply system for operating a plurality of independent electrical devices and electrical device and plug adapter system
06/18/2009DE102007059781A1 Operation of plastics-processing heating equipment with several heating circuits, controls sum and ratios of heating energy supplied to each circuit, minimizing electrical demand
06/18/2009DE102007059498A1 Linear voltage regulator for detection of open load, has one pair of complementary power transistors which are inserted in series between voltage input and voltage output
06/17/2009EP2071425A1 Circuit installation capable of full voltage activation, division voltage operation and delayed breaking
06/17/2009EP2070171A2 Inverter with improved overcurrent protection circuit, and power supply and electronic ballast therefor
06/17/2009CN201259641Y Intelligent electricity supplier
06/17/2009CN101460903A Method and system for providing a charge pump for very low voltage applications
06/17/2009CN101458538A Method for reducing standby power consumption of power supply system and the power supply system
06/17/2009CN101458537A Voltage regulator circuit and resistance deviation compensation method
06/17/2009CN101458536A Method and apparatus for external control mode step down switching regulator
06/17/2009CN100502220C Power-on system for chip voltage down-converter
06/17/2009CN100502189C Overcurrent detecting circuit and power supply device provided with it
06/17/2009CN100501632C Operating current modifying device and method
06/17/2009CN100501631C Voltage stabilizing circuit
06/17/2009CN100501630C Semiconductor device having voltage feedback circuit
06/16/2009US7548442 Power converter with coupled inductor
06/16/2009US7548441 Universal AC adapter
06/16/2009US7548109 Voltage converter and display device comprising a voltage converter
06/16/2009US7548050 Switching power supply device and semiconductor integrated circuit
06/16/2009US7548049 Switching regulator
06/16/2009US7548048 Switching mode power supply and method for determining a compensation factor thereof
06/16/2009US7548047 Pulse width modulated buck voltage regulator with stable feedback control loop
06/16/2009US7548046 Method and apparatus for multi-phase DC-DC converters using coupled inductors in discontinuous conduction mode
06/16/2009US7548045 Low-consumption voltage regulator
06/16/2009US7548044 Constant-voltage power circuit with fold back current limiting capability
06/16/2009US7548043 Power supply apparatus and method for providing voltage
06/16/2009US7548042 DC-DC converter device and method for operating the dc-dc converter of a motor vehicle on-board electrical system
06/16/2009US7548029 Bi-directional current sensing by monitoring VS voltage in a half or full bridge circuit
06/12/2009CA2646524A1 Load controller
06/12/2009CA2646258A1 Load controller
06/11/2009WO2009073359A1 Interconnect structure for a microelectronic device, method of manfacturing same, and microelectronic structure containing same
06/11/2009WO2009073078A1 Sepic fed buck converter
06/11/2009US20090147546 Isolated voltage converter with feedback on the primary winding and passive snubber network, and corresponding control method
06/11/2009US20090147542 Systems and methods for driving a transistor
06/11/2009US20090147510 Led illumination device and illumination module using the same
06/11/2009US20090146857 Maintaining A Reference Voltage Constant Against Load Variations
06/11/2009US20090146734 Charge Recycling (CR) in Power Gated Complementary Metal-Oxide-Semiconductor (CMOS) Circuits and in Super Cutoff CMOS (SCCMOS) Circuits
06/11/2009US20090146733 Semiconductor integrated circuit
06/11/2009US20090146732 Constant Current Source Circuit
06/11/2009US20090146731 Reference voltage generating circuit and power supply device using the same
06/11/2009US20090146729 Constant voltage circuit, constant voltage supply system and constant voltage supply method
06/11/2009US20090146728 Generic voltage tolerant low power startup circuit and applications thereof
06/11/2009US20090146635 System and method for improving inductor current sensing accuracy of a dc/dc voltage regulator
06/11/2009US20090146634 Single integrator sensorless current mode control for a switching power converter
06/11/2009US20090146633 Step-up switching regulator and its control circuit and electronic apparatus employing it
06/11/2009US20090146632 Soft start of a switched secondary control circuit for a switched mode power supply
06/11/2009US20090146630 Semiconductor device
06/11/2009US20090146629 Methods and apparatus for power supply
06/11/2009US20090146628 Power supply control circuit
06/11/2009US20090146627 Voltage regulating circuit
06/11/2009US20090146626 System And Method For Dissipating Energy On The Primary Side Of A Bi-Directional Switching Power Supply
06/11/2009US20090146625 Voltage generating apparatus
06/11/2009US20090146624 Shunt regulator having over-voltage protection circuit and semiconductor device including the same
06/11/2009US20090146623 DC to DC converter
06/11/2009US20090146622 Phase shedding converter with ripple minimization
06/11/2009US20090146621 Methods and apparatus for current sensing in mutually coupled inductors
06/11/2009US20090146620 Methods and apparatus for current sensing
06/11/2009US20090146619 Power factor correction method for ac/dc converters and corresponding converter
06/11/2009US20090146618 Fixed-off-time power factor correction controller
06/10/2009EP2068223A2 Constant current source circuit
06/10/2009EP2068158A2 Apparatus for measuring load current
06/10/2009DE102008012465A1 Fernsehkarte mit Energie-Schaltfunktion TV card with power switching function
06/10/2009DE102007058380A1 Circuit arrangement for operating e.g. washing machine, for doing laundry, has network part coupled with supply network by diodes using bistable contact element e.g. bistable relay, where element is controlled in closed condition of door
06/10/2009DE102007058379A1 Schaltungsanordnung zum Betreiben eines Hausgeräts Circuit arrangement for operating a household appliance
06/10/2009CN201255843Y Full digital circuit for power source outputting voltage control
06/10/2009CN101452302A Constant-current source device with energy-conservation and over voltage protection
06/10/2009CN101452301A Linear regulator
06/10/2009CN101452300A Electric device with lower standby power
06/10/2009CN101452299A Automatic voltage control circuit and correlation method
06/10/2009CN101452298A Voltage regulator with oblique wave compensation
06/10/2009CN100498636C Maximum power tracking capture photovoltaic control method with self-adaptive search algorithm
06/10/2009CN100498635C Method and device for system efficiency adjustment
06/10/2009CN100498634C Voltage regulator
06/10/2009CN100498633C Device for regulating electrical voltage
06/09/2009US7545203 Internal voltage generation circuit
06/09/2009US7545134 Power supply controller and method therefor
06/09/2009US7545132 Sensor-less, low frequency adaptive current limiter and methods for limiting inductive current using the same
06/09/2009US7545131 Transient processing mechanism for power converters
06/09/2009US7545130 Non-linear controller for switching power supply
06/09/2009US7545129 Switching power supply circuit
06/09/2009US7545128 Regulator circuit
06/09/2009US7545127 Power supply controller
06/09/2009US7545126 Controller for sensing a heavy load and a short circuit of low dropout regulators
06/04/2009WO2009069093A1 Arrangement and approach for providing a reference voltage
06/04/2009WO2009068745A1 Control circuit and control method
06/04/2009WO2009068370A1 Regulating device and method for regulating an average current through an inductive load
06/04/2009US20090143032 Control circuit and control method
06/04/2009US20090141520 Isolated voltage converter with feedback on the primary winding, and corresponding method for controlling the output voltage
06/04/2009US20090140874 Transformer systems including standby loss prevention modules
06/04/2009US20090140797 Rapidly Activated Current Mirror System
06/04/2009US20090140796 Slew rate control in output driver
06/04/2009US20090140795 High-dynamic range low ripple voltage multiplier
06/04/2009US20090140794 Constant-current charge pump
06/04/2009US20090140712 Self-supply circuit and method for a voltage converter
06/04/2009US20090140711 Switching regulator with balanced control configuration with filtering and referencing to eliminate compensation
06/04/2009US20090140710 Method and apparatus for a high voltage power supply circuit
06/04/2009US20090140709 Current-limiting voltage conversion device