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)
05/2000
05/16/2000US6064188 Internal step-down converter
05/16/2000US6064187 Voltage regulator compensation circuit and method
05/11/2000WO2000027032A1 Combined voltage and current slew rate limiting
05/11/2000WO2000026739A1 High efficiency power supply for a two-wire loop powered device
05/11/2000WO2000026738A1 Current measuring techniques
05/11/2000WO2000026737A1 Single inverter with dual boost
05/11/2000WO2000026733A1 Automobile dashboard light control
05/11/2000WO2000008740A3 Arrangement for eliminating radio interferences in an electronic power regulator
05/10/2000EP0999453A1 Power supply having automatic voltage sensing
05/10/2000EP0998777A1 Method for injecting reactive power in an alternating current system, and inverter therefor
05/10/2000CN2377552Y Wide-range high-power switching voltage-regalated power supply
05/10/2000CN2377551Y Voltage-regulated power saver for street lamp
05/10/2000CN1252545A Indication system for electronic tap position
05/10/2000CN1052348C Power supplying circuit
05/09/2000US6060945 Burn-in reference voltage generation
05/09/2000US6060944 N-channel voltage regulator
05/09/2000US6060942 Voltage boosting power supply circuit of memory integrated circuit and method for controlling charge amount of voltage boosting power supply
05/09/2000US6060879 Current magnitude sensing circuit
05/09/2000US6060871 Stable voltage regulator having first-order and second-order output voltage compensation
05/09/2000US6060868 Electronic switching circuit for reducing power-on switching transients
05/09/2000US6060752 Electrostatic discharge protection circuit
05/04/2000WO2000025424A1 Level shifter
05/03/2000EP0860075A4 Energy monitoring and control system using reverse transmission on ac line
05/03/2000CN1251939A Superconducting current limiter with damping component
05/02/2000US6058035 Method and apparatus for supplying AC power to commercial power line by using sunlight
05/02/2000US6058033 Voltage to current converter with minimal noise sensitivity
05/02/2000US6057729 Power circuit
05/02/2000US6057674 Energy saving power control system
05/02/2000US6057673 Compensation device and power transmission system using a compensation device
04/2000
04/26/2000EP0996211A2 Electronic portable appliance
04/26/2000EP0995254A2 Method and device for regulating alternating voltage
04/26/2000CN2375989Y Electro-deposition current source
04/26/2000CN2375988Y 60Hz constant frequency and constant voltage power supply
04/26/2000CN2375987Y Voltage stabilizer anti-theft device
04/25/2000US6054846 Universal power-supply connection system for multiple electronic devices, and devices for use therewith
04/20/2000WO2000022892A2 Ballast power control circuit
04/20/2000CA2346938A1 Ballast power control circuit
04/19/2000EP0994556A1 Semiconductor device including an integrated circuit for realizing a DC converter
04/19/2000EP0994401A2 Direct-current stabilization power supply device
04/19/2000CN2374880Y Filament lamp protector
04/19/2000CN2374879Y A. C. automatic voltage regulator without spacing loss
04/19/2000CN1250973A Semiconductor device of integrated circuit having ac-dc voltage converter
04/18/2000US6051964 Sectionalized power regulator separated between an output inductor and an output capacitor
04/18/2000US6051962 Overload protection unit for readjusting switching elements
04/18/2000US6051937 Voltage ratio regulator circuit for a spacer electrode of a flat panel display screen
04/18/2000CA2053382C Voltage booster
04/12/2000EP0993104A2 Capacitive-summing switch-mode power conversion control and method
04/12/2000EP0993093A2 Method and control device for stabilising a power supply network
04/12/2000EP0992876A2 Method for adjusting power comsumption
04/12/2000CN2373821Y Large capacity compensation type electric power voltage-stabilizer
04/12/2000CN2373820Y Compensation type electric power voltage-stabilizer using R type transformer
04/11/2000US6049474 Current estimator for a three phase invertor with PWM period adjustment
04/11/2000US6049266 Single-phase three-wire type transformer
04/11/2000US6049243 Voltage level converter circuit improved in operation reliability
04/11/2000US6049237 Voltage/current converting circuit and PLL circuit including this circuit
04/11/2000US6049200 Voltage regulator capable of lowering voltage applied across phase compensating capacitor
04/11/2000US6049199 Control apparatus with reduced quiescent current
04/11/2000CA2042351C Power adaptor
04/06/2000DE19845851A1 Verfahren und Regelungseinrichtung zur Stabilisierung eines Stromversorgungsnetzes A method and control apparatus for stabilizing a power supply network
04/05/2000EP0990967A2 Circuit for controlling and measuring the load current through a load
04/05/2000EP0990199A1 Regulating device
04/05/2000CN1249827A Electric circuit and method for eliminating influence of voltage drop
04/04/2000US6046919 Solar power generating device
04/04/2000US6046624 Internal power supply generating circuit for a semiconductor memory device
04/04/2000US6046581 Microprocessor load emulator
04/04/2000US6046577 Low-dropout voltage regulator incorporating a current efficient transient response boost circuit
04/04/2000US6046549 Energy saving lighting controller
04/04/2000US6045274 Power supply apparatus
03/2000
03/30/2000DE19844665C1 Circuit for controlling and detecting load current
03/29/2000EP0989663A2 Circuit for reducing voltage fluctuation and flicker
03/29/2000EP0600003B1 Method for temperature-compensating zener diodes having either positive or negative temperature coefficients
03/29/2000CN1248735A Self-adaption switch electric power source
03/28/2000US6043703 Low power active input circuit
03/28/2000CA2188128C Impedance emulator
03/22/2000EP0987621A2 Microprocessor power supply system comprising a programmable power supply and a programmable brownout detector
03/22/2000EP0987615A1 Power circuit including inrush current limiter, and integrated circuit including the power circuit
03/22/2000EP0961959A4 Voltage regulator circuit
03/22/2000EP0677225B1 System for providing voltage in a voltage line common to a plurality of electrical units
03/22/2000CN2370451Y Separable AC purifying and stabilizing power source
03/22/2000CN1248090A Power circuit having inrush current inhibition method and integrated circuit with the power circuit
03/22/2000CN1248010A Microprocessor power system including programmable power and programmable power-saving detector
03/22/2000CN1050679C Power supply device, liquid crystal display device and method of supplying power
03/21/2000US6040736 Control circuit for power transistors in a voltage regulator
03/21/2000US6040686 Low noise step-down switching regulator circuits with programmable slew rate limiter and methods of use
03/21/2000US6040639 Circuit for improved load transient response in power supplies
03/15/2000EP0985260A1 Circuit for a coupled, linearly re-adjusted electricity supply unit supplying output voltages
03/15/2000EP0876700B1 Intelligent power supply with staged loading capability
03/15/2000EP0746892B1 Pre-regulator with protection against voltage ringing on turn-off
03/15/2000EP0701712B1 Voltage regulators
03/15/2000CN2369269Y Flexible switch power supplier with large power high stability D. C. current stabilizer
03/15/2000CN2369268Y A. C. voltage stabilizer
03/15/2000CN1050472C Device for converting resistance value into control signal which depends on resistance value, and electrical appts. comprising such device
03/15/2000CN1050464C Output voltage compensating circuit
03/14/2000US6037826 Control of saturation of integrated bipolar transistors
03/14/2000US6037760 Method and circuit for controlling the charge of a bootstrap capacitor in a switching step-down regulator
03/14/2000US6037759 Voltage regulator capable of improving system response
03/14/2000US6037758 Load controller and method to enhance effective capacity of a photovoltaic power supply
03/14/2000US6037757 Power control unit having switching phase control for reducing voltage drop at a power supply
03/14/2000US6037755 Switching controller for a buck+boost converter and method of operation thereof
03/14/2000US6037720 Level shifter