Patents
Sitemap › G05 - Controlling; Regulating › G05F - Systems for regulating electric or magnetic variables › 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
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)
04/2003
04/15/2003US6549480 Semiconductor integrated circuit allowing internal voltage to be measured and controlled externally
04/15/2003US6549441 Voltage switch-over device
04/15/2003US6548994 Reference voltage generator tolerant to temperature variations
04/15/2003US6548993 Power supply module having internal energy storage circuit for stable oscillation
04/15/2003US6548991 Adaptive voltage scaling power supply for use in a digital processing component and method of operating the same
04/15/2003US6548786 Circuit for driving a heater at a constant power
04/10/2003WO2003030198A1 Safety switch device for safe disconnection of an electric consumer
04/10/2003WO2003029910A2 Method for generating an output voltage
04/10/2003WO2003029623A2 An electrical control circuit and method
04/10/2003US20030067340 Semiconductor integrated circuit
04/10/2003US20030067304 Voltage detecting circuit
04/10/2003US20030067288 Circuit arrangement for regulating a voltage
04/10/2003US20030067287 Method for producing a supply voltage in a motor vehicle
04/10/2003US20030066695 High voltage energy regulated conversion circuit
04/09/2003EP1300937A2 Air conditioning device
04/09/2003EP1300935A2 Energy saving power control system
04/09/2003EP1300743A1 Protection device for a voltage source and a load supplied by the voltage source
04/09/2003EP1219145B1 Signal generator and control unit for sensing signals of signal generator
04/09/2003CN1409474A Switch power source device
04/09/2003CN1105323C 电源装置和液晶显示装置 The power supply device and a liquid crystal display device
04/08/2003US6545884 Alternator system
04/03/2003WO2003028198A1 Device for measuring a chopped current
04/03/2003WO2003027791A1 Switching power supply
04/03/2003US20030063899 Electrical control circuit and method
04/03/2003US20030062883 Constant voltage circuit and infrared remote control receiver using the same
04/03/2003US20030062878 Apparatus and methods for power regulation of electrical loads to provide reduction in power consumption by the electrical loads
04/02/2003CN1407710A Current-limiting circuit of brushless direct-current fan motor
04/01/2003US6542791 Load controller and method to enhance effective capacity of a photovotaic power supply using a dynamically determined expected peak loading
04/01/2003US6542026 Apparatus for on-chip reference voltage generator for receivers in high speed single-ended data link
04/01/2003US6541948 Voltage regulator and method using high density integrated inductors and capacitors for radio frequency suppression
04/01/2003US6541946 Low dropout voltage regulator with improved power supply rejection ratio
03/2003
03/27/2003WO2003025692A1 Amplifier having a variable power factor
03/27/2003US20030058030 Charge pump circuit
03/27/2003US20030057890 Systems and methods for controlling illumination sources
03/27/2003US20030057886 Methods and apparatus for controlling devices in a networked lighting system
03/27/2003US20030057884 Systems and methods for digital entertainment
03/26/2003EP1252558A4 Voltage control system and method
03/26/2003CN1405975A Constant-voltage circuit and infrared telecontrol veceiver using said constant-voltage circuit
03/26/2003CN1104090C Solar cell system and intermittent motion apparatus using same
03/25/2003US6538492 Power supply, electronic device using the same, and output
03/25/2003US6538417 Voltage regulating device and process
03/25/2003US6538394 Current source methods and apparatus for light emitting diodes
03/20/2003US20030052660 Internal step-down power supply circuit
03/20/2003US20030052659 Power supply and display apparatus including thereof
03/20/2003US20030052658 Method and apparatus for electronic power control
03/20/2003US20030052653 Amplifier having a variable power factor
03/19/2003EP1294086A2 Buck regulator circuit for use in a power supply
03/19/2003EP1293031A1 Multi-phase pulse width modulated voltage regulator
03/19/2003EP1292867A2 Voltage regulator circuit
03/19/2003CN2540657Y Secondary synchronous rectification circuit for anti-excite type switch voltage-stabilized source
03/19/2003CN1103509C Charge pump for generating negative voltage
03/18/2003US6535052 High efficiency charge pump circuit
03/18/2003US6535039 Low power circuit with proper slew rate by automatic adjustment of bias current
03/13/2003WO2003021637A2 A high performance integrated circuit regulator with substrate transient suppression
03/13/2003US20030050026 High performance integrated circuit regulator with substrate transient suppression
03/13/2003US20030048653 Semiconductor integrated circuit device and contactless electronic device
03/13/2003US20030048097 Switching power supply apparatus
03/13/2003CA2390243A1 Buck regulator circuit for use in a power supply
03/12/2003CN2540061Y Intelligent low voltage power capacitor
03/12/2003CN1402433A 半导体器件和电源电压控制方法 Semiconductor devices and the supply voltage control method
03/12/2003CN1402418A Method and device for generating driving power supply
03/12/2003CN1402099A Multigroup output power supply device
03/12/2003CN1402098A Volt-second clamp circuit power supply device
03/11/2003US6532200 Voltage supply adaptable to current highest voltage demand
03/11/2003US6532183 Semiconductor device capable of adjusting internal potential
03/11/2003US6531914 Internal voltage generation circuit
03/11/2003US6531855 DC power supply with output voltage detection and control
03/11/2003US6531851 Linear regulator circuit and method
03/06/2003US20030042971 Power supply circuit having value of output voltage adjusted
03/06/2003US20030042485 Semiconductor integrated circuit device capable of tuning of internal power supply voltages generated by a plurality of internal power generating circuits
03/05/2003EP1287369A2 System and method for diagnosing fault conditions associated with powering an electrical load
03/05/2003EP0983627B1 Apparatus for power supplying and controlling a number of external devices
03/05/2003CN2539345Y General active terminal box for locomotive signal
03/05/2003CN1401099A Voltage current transformer
03/05/2003CN1400732A Power-switching circuit
03/05/2003CN1400729A Swikching power source unit
03/05/2003CN1102767C Double power source supply device with voltage stabilizing function
03/04/2003US6529563 Method and apparatus for providing a self-sustaining precision voltage and current feedback biasing loop
03/04/2003US6529411 Reference voltage generator circuit for nonvolatile memory
03/04/2003US6528977 Power supply system provided with photovoltaic generator
03/04/2003US6528925 Piezoelectric/electrostrictive element driving circuit
02/2003
02/27/2003WO2003017455A2 Thermally compensated current sensing of intrinsic power converter elements
02/27/2003WO2003017454A1 Thermal compensation method and device for circuits with temperature-dependent current sensing elements
02/27/2003WO2003017403A1 Method and apparatus for regulating electrical power output of a fuel cell system
02/27/2003US20030039130 Alternator system
02/27/2003US20030039127 Thermal compensation method and device for circuits with temperature-dependent current sensing elements
02/27/2003US20030038666 Semiconductor and method of controlling power supply voltage
02/27/2003US20030038614 Thermally compensated current sensing of intrinsic power converter elements
02/26/2003CN1102254C Method and equipment for overall increasement of electricity quality
02/26/2003CN1102220C Method of controlling food thawing and cooking operations of microwave oven
02/25/2003US6525599 Changeable voltage regulator for a computer processor
02/25/2003US6525596 Series regulator having a power supply circuit allowing low voltage operation
02/25/2003US6525517 Power supply circuit with a soft starting circuit
02/25/2003US6525515 Feedback apparatus and method for adaptively controlling power supplied to a hot-pluggable subsystem
02/25/2003US6525507 Solar system for a motor vehicle
02/20/2003US20030035258 High voltage bias feedback for diagnostic purposes
02/20/2003US20030034829 Apparatus for on-chip reference voltage generator for receivers in high speed single-ended data link
02/20/2003US20030034823 Data processing system
02/19/2003EP1284040A1 Integrated current source feedback and current limiting element
02/19/2003EP1185917B1 Circuit configuration of a control device for monitoring an electric potential
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