Patents for H02H 7 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions (32,726) |
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10/04/2007 | US20070229011 Circuit Arrangement and Method for Adjusting the Power Consumption of a Load That Can be Operated by a Direct-Voltage System |
10/04/2007 | DE102006011713A1 Elektrische Auslöseeinheit für einen Motorschutzschalter eines Elektromotors Tripping unit for a motor-protective circuit of an electric motor |
10/04/2007 | DE102006008927A1 Energy supply control unit for bicycle, has rectifier bridges that control switching relay, supply rechargeable battery and lamp with energy and operates and charges other rechargeable battery of external electronic devices e.g. camera |
10/03/2007 | EP1602115A4 Method and system for sensing switch position to prevent inadvertent startup of a motor |
10/03/2007 | CN200956521Y Wind and/or solar power inter-supplement controller |
10/03/2007 | CN200956099Y Energy-saving controller for pumping unit |
10/03/2007 | CN101047356A Overcurrent detection circuit for electric machine driver |
10/03/2007 | CN101047321A Lithium battery pack |
10/03/2007 | CN101047319A Uninterruptible power supply apparatus |
10/03/2007 | CN101047314A Equi-transmission instantaneous value differential protection method of microcomputer protection for remote transmission line |
10/03/2007 | CN101047313A Overvoltage protection control circuits and overvoltage protection control methods |
10/03/2007 | CN101047312A Battery protection module and battery protection system |
10/03/2007 | CN101047311A Protector for vehicle electric seat |
10/03/2007 | CN101047310A Overheat protection circuit and system circuit board |
10/03/2007 | CN100341366C Identifier of portable terminal cell port and its method |
10/03/2007 | CN100341221C Harmonic overload protecting method for reactor |
10/02/2007 | US7277264 Semiconductor integrated circuit having current detection functionality and power supply unit equipped with the same |
10/02/2007 | US7276974 Method and apparatus for protecting RF power amplifiers |
10/02/2007 | US7276890 Precision bandgap circuit using high temperature coefficient diffusion resistor in a CMOS process |
10/02/2007 | US7276882 Regulator control circuit and method |
10/02/2007 | US7276881 Protection method, control circuit, and battery unit |
10/02/2007 | US7276878 Amperage control for protection of battery over current in power tools |
10/02/2007 | US7276871 System and method for fault protection for permanent magnet machines |
10/02/2007 | US7276870 Arrangement for overload protection and method for reducing the current consumption in the event of mains voltage fluctuations |
10/02/2007 | US7276817 Output voltage control apparatus for vehicular AC generator |
10/02/2007 | US7275380 Thermal management system and method |
09/27/2007 | WO2007109271A2 High side reset logic for gate driver |
09/27/2007 | WO2007107872A2 Universal monitoring and diagnostic control system for a transformer or tap- changer |
09/27/2007 | WO2007081789A3 Miniature electric power generator system and method for controlling a miniature electric power generator |
09/27/2007 | US20070223262 Multiple inverter system with single controller and related operating method |
09/27/2007 | US20070223261 Power conversion circuit control apparatus |
09/27/2007 | US20070223260 Power supply device with inrush current control circuit |
09/27/2007 | US20070223259 Apparatus and Method for Monitoring Load Driving Circuit for Abnormality |
09/27/2007 | US20070223164 Overcurrent Detection Circuit and Power Supply Apparatus Provided Therewith |
09/27/2007 | US20070223154 High side reset logic for gate driver |
09/27/2007 | US20070223153 Portable electronic devices |
09/27/2007 | US20070223152 Portable device |
09/27/2007 | US20070222504 System and method for minimizing DC offset in outputs of audio power amplifiers |
09/27/2007 | DE102006012819A1 Verfahren und Vorrichtung einer Zweidraht-Duplex-Informationsübertragung für einen Richtungsvergleichsabfrageschutz Method and apparatus of a two-wire duplex data transmission for a directional comparison protection query |
09/27/2007 | CA2645868A1 Universal monitoring and diagnostic control system for a transformer or tap-changer |
09/26/2007 | EP1836711A1 Superconducting power cable capable of quench detection and quench detection system using the same |
09/26/2007 | EP1711308B1 Method for switching off an electric machine tool when blocked, and an electric machine tool |
09/26/2007 | EP1311866B1 Current compensation method and device for power system protection |
09/26/2007 | CN200953541Y H bridge control system |
09/26/2007 | CN200953537Y Pulse width speed regulating paper crusher |
09/26/2007 | CN200953470Y Small current grounding wire selecting device for neutral point non-effective ground connection system |
09/26/2007 | CN200953469Y Electric protector for vehicular equipment |
09/26/2007 | CN200953468Y Automatic open-phase protector |
09/26/2007 | CN200953467Y Motor protection instrument |
09/26/2007 | CN200953466Y Thermal protection circuit for brushless DC electric machine |
09/26/2007 | CN200953465Y Electric welding transformer protecting device |
09/26/2007 | CN200953463Y Under-voltage protective circuit for high-voltage vacuum switch |
09/26/2007 | CN200953459Y Solid tube safety unit |
09/26/2007 | CN200953458Y Solid tube safety unit |
09/26/2007 | CN200953457Y Solid tube safety unit |
09/26/2007 | CN200953456Y Integrated block safety unit |
09/26/2007 | CN101044663A Device for the safe isolation of a nuclear power plant from a supply mains during a mains failure |
09/26/2007 | CN101043139A Method for realizing line high-resistance fast trip using zero-sequence loop fuction |
09/26/2007 | CN101043138A Protection circuit for semiconductor element |
09/26/2007 | CN101043137A Converter drive circuit having disconnection inducing function and its disconnection inducing method |
09/26/2007 | CN101043136A Circle-by-circle current protective circuit of switch electrical source |
09/26/2007 | CN100340044C Automobile electricity-connecting conductor device capable of making automatic detection and switching power polarity |
09/26/2007 | CN100340042C Over-voltage protection device of DC motor |
09/26/2007 | CN100339630C Solenoid valve protection circuit |
09/25/2007 | US7274547 Electrical power supply system and a permanent magnet generator for such a system |
09/20/2007 | WO2007104733A2 Electronic tripping unit for a motor-circuit breaker of an electric motor |
09/20/2007 | WO2007104598A1 Protective device and method for monitoring the appliance temperature of an appliance |
09/20/2007 | WO2007085727A3 Device for automatically earthing the neutral of an electrical appliance |
09/20/2007 | US20070217105 Electric Power Network |
09/20/2007 | US20070217097 Fault Current Limiter Having Superconducting Bypass Reactor For Simultaneous Quenching |
09/20/2007 | US20070217096 Integrated circuit device |
09/20/2007 | US20070217095 Switching mode power supply |
09/20/2007 | US20070217094 Switching regulator |
09/20/2007 | US20070217093 Multiple voltage ballast |
09/20/2007 | US20070214722 Method and Circuit Arrangement for the Electrical Control and/or Regulation of the Movement of an Electrically Driven Unit |
09/20/2007 | DE102007007262A1 Leistungselektronik-Anlage Power electronics system |
09/20/2007 | DE102006012215A1 Transversalflussmaschine und Turbomaschine mit derartiger Transversalflussmaschie Transverse flux and turbomachinery such Transversalflussmaschie |
09/20/2007 | DE102006010993A1 Auto-select circuit for use in switching power supply of e.g. notebook, has evaluation unit connected with circuit points, where switch is controlled based on output of evaluation unit |
09/20/2007 | CA2644023A1 Transverse flux machine and turbine-type machine having such a transverse flux machine |
09/19/2007 | EP1177616B1 Electronically commutable motor, in particular, for a liquid pump |
09/19/2007 | CN200950537Y Protective circuit |
09/19/2007 | CN200950536Y Intelligent controller for motor |
09/19/2007 | CN200950535Y Electronic transformer having alarm and protection function with display |
09/19/2007 | CN200948300Y Negative ion instrument for expelling toxin and preserving health |
09/19/2007 | CN101040415A 保护电路 Protection circuit |
09/19/2007 | CN101039037A 充电管理芯片 Charge Management IC |
09/19/2007 | CN101039028A Electric potential compensation process for reducing neutral point direct current of high-voltage grid transformer |
09/19/2007 | CN101039026A Protective circuit for battery |
09/19/2007 | CN100338472C Zero sequence direction measurement method with zero sequence voltage compensation |
09/18/2007 | US7271990 Smart solid state relay |
09/18/2007 | US7271559 Method and switching apparatus for recording the current in an electrical device |
09/18/2007 | CA2359322C Electric utility system with superconducting magnetic energy storage |
09/13/2007 | WO2007101783A1 Switchgear with a plurality of outgoing feeders and method for interrupting an overcurrent |
09/13/2007 | WO2007060575A3 Temperature compensated charging control device for electronic equipment |
09/13/2007 | US20070211396 Ground fault detection device for motor driving circuit |
09/13/2007 | US20070211395 Protection device |
09/13/2007 | US20070211394 IC power protection circuit |
09/13/2007 | US20070210893 Overheat Protection Device and Electrical System Having Same |
09/13/2007 | US20070210763 Power-generator control method and apparatus using externally applied periodic signal |
09/13/2007 | US20070210736 Power supply apparatus |