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)
03/2012
03/28/2012CN102393777A Instrument bus protocol based data communication device and method
03/28/2012CN102393776A Serial connection type AC voltage stabilizer
03/28/2012CN102393775A Voltage-current converting circuit
03/28/2012CN101881983B Numerical-control low-noise high-power-supply ripple suppression low-dropout regulator
03/28/2012CN101847028B Dynamic compensation circuit with ultra-low power consumption and linear regulator with the same
03/28/2012CN101813958B Low dropout regulator, circuit and method for providing overcurrent protection therein
03/28/2012CN101751898B Gray scale electric potential generating device
03/27/2012US8144484 Electronic circuit control element with tap element
03/27/2012US8143940 Internal supply voltage generating circuit and method for generating internal supply voltage
03/27/2012US8143939 Charge pump driving circuit and charge pump system
03/27/2012US8143938 Boost circuit and liquid crystal display device using boost circuit
03/27/2012US8143937 Internal negative voltage generation device
03/27/2012US8143914 Semiconductor integrated circuit
03/27/2012US8143875 Method and apparatus to limit output power in a switching power supply
03/27/2012US8143874 Switch-mode power supply (SMPS) controller integrated circuit determining operating characteristics from filter component information
03/27/2012US8143873 Step-up switching power supply circuit
03/27/2012US8143872 Power regulator
03/27/2012US8143871 Dynamically-compensated controller
03/27/2012US8143870 Methods and apparatus for current sensing
03/27/2012US8143869 Voltage reference circuit with fast enable and disable capabilities
03/27/2012US8143868 Integrated LDO with variable resistive load
03/27/2012US8143867 Electric power supply device
03/27/2012US8143866 Control device for power factor correction device in forced switching power supplies
03/27/2012US8143865 Average current mode controlled converter having a buck mode, a boost mode, and a partial four-switch mode
03/27/2012US8143814 Method and device for driving a gas discharge lamp
03/27/2012US8143811 Lighting control system and method
03/27/2012US8143806 Multiple location dimming system
03/22/2012US20120068758 Reference current sources
03/22/2012US20120068680 Method and apparatus for implementing slew rate control using bypass capacitor
03/22/2012US20120068679 Regulated power supply system with high input voltage dynamics
03/22/2012US20120068678 Dc-dc converter
03/22/2012US20120068676 Voltage generation circuit
03/22/2012US20120068675 Voltage generation circuit
03/22/2012US20120068674 Multiphase control system and control unit
03/22/2012US20120068673 Startup circuit for self-supplied voltage regulator
03/22/2012US20120068672 Semiconductor integrated circuit and method of controlling mems-type variable capacitance capacitor
03/22/2012DE102010020468B4 Ein Brückenloser Leistungsfaktor-Korrektor mit einer Steuerungslogik A bridge Loser power factor corrector with a control logic
03/21/2012EP2432299A1 Temperature compensated LED constant current source
03/21/2012EP2431832A1 Method and arrangement for tracking the maximum power point of a photovoltaic module
03/21/2012EP2431831A2 Electric device and control method of the same
03/21/2012EP2430738A1 Converter circuit and electronic system comprising such a circuit
03/21/2012EP2430668A2 Photovoltaic device and production method
03/21/2012EP2430507A1 Transient load voltage regulator
03/21/2012CN202171757U DC (direct current) voltage stabilization power source capable of adjusting voltage
03/21/2012CN202171756U 微功耗交流稳压器 Micropower exchange regulator
03/21/2012CN102388522A Power transfer management for local power sources of a grid-tied load
03/21/2012CN102386808A Photovoltaic controller with maximum power point tracking function
03/21/2012CN102386807A Power supply management system and power supply management method
03/21/2012CN102385411A Reference current generating circuit
03/21/2012CN102385410A Slew-rate enhancement circuit and LDO integrating same
03/21/2012CN102385409A VGS/R (Voltage Gradient Standard/Reference) type reference source capable of supplying zero-temperature coefficient voltage and current reference at the same time
03/21/2012CN102385408A Low dropout linear voltage regulator
03/21/2012CN102385407A Bandgap reference voltage source
03/21/2012CN102385406A Capacitor-less low dropout regulator structure
03/21/2012CN102385405A General band gap reference starting circuit
03/21/2012CN102385404A Semiconductor chip
03/21/2012CN102023668B Linear voltage adjuster circuit
03/21/2012CN101764520B DC-DC control circuit with large range of load current
03/21/2012CN101599711B Current converter circuit
03/21/2012CN101447745B Two-source series inverter
03/21/2012CN101089770B Low dropout linear regulator, low dropout voltage regulation method and device
03/20/2012US8139424 Semiconductor apparatus
03/20/2012US8139378 LED dimmer device adapted for use in dimmer
03/20/2012US8139327 Semiconductor integrated circuit
03/20/2012US8138822 Circuits and methods for calibrating switching current sources
03/20/2012US8138821 High voltage pumping circuit
03/20/2012US8138744 Combined type transformer and buck-boost circuit using the same
03/20/2012US8138741 High voltage generator in semiconductor memory
03/20/2012US8138740 Non-linear compensation ramp for current mode pulse width modulation
03/20/2012US8138739 Circuits and methods for improving transient response of hysteretic DC-DC converters
03/20/2012US8138738 Method for regulating supply voltage
03/20/2012US8138737 Duty cycle controller for power factor correction circuit
03/20/2012US8138736 Power system having a local sense control dominant over a remote sense control to avoid effects of interconnection failure modes
03/20/2012US8138735 Low-voltage start up circuit and method for DC-DC boost converter
03/20/2012US8138734 Accurate current limit for peak current mode DC-DC converter
03/20/2012US8138733 Control circuit for DC converter
03/20/2012US8138732 DCR sense for a COT power converter
03/20/2012US8138731 Power regulation for large transient loads
03/20/2012US8138688 Half-bridge power converter for driving LED by series-resonant connection of inductor, inductor and capacitor
03/20/2012US8138685 Power converting circuit and controller thereof
03/15/2012WO2012033575A1 System and method for providing a low power remote control
03/15/2012WO2012032274A1 Photovoltaic panel operation control
03/15/2012WO2012031362A1 Methods, apparatus and system to support large-scale micro- systems including embedded and distributed power supply, thermal regulation, multi-distributed-sensors and electrical signal propagation
03/15/2012WO2011157869A3 Integrated linear resistance with temperature compensation
03/15/2012WO2011156290A3 Apparatus and method for variable voltage distribution
03/15/2012US20120063250 Non-volatile memory device and charge pump circuit for the same
03/15/2012US20120063244 Voltage generator, nonvolatile memory device comprising voltage generator, and method of operating voltage generator
03/15/2012US20120062752 Power conversion circuit and internet protocol camera employing the same
03/15/2012US20120062207 Powder Core Material Coupled Inductors And Associated Methods
03/15/2012US20120062201 Comparator type dc-dc converter using synchronous rectification method
03/15/2012US20120062200 Voltage regulation device and system employing the same
03/15/2012US20120062199 III-Nitride Power Converter Circuit
03/15/2012US20120062198 Regulator and dc/dc converter
03/15/2012US20120062197 Electronic device and method for discrete load adaptive voltage regulation
03/15/2012US20120062196 Converting controller
03/15/2012US20120062195 Active wire compensation circuit and controller with the same
03/15/2012US20120062194 High side controller capable of sensing input voltage and ouput voltage of a power conversion circuit
03/15/2012US20120062193 Voltage regulation circuit
03/15/2012US20120062192 Voltage Regulator
03/15/2012US20120062191 Dc-to-dc converter
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