| 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) |
|---|
| 04/29/2009 | CN101420102A Semiconductor laser protection circuit, optical pick-up device and information recording playback device |
| 04/29/2009 | CN101419880A Thermal protector for three-phase motor |
| 04/29/2009 | CN100483885C Storage battery protecting device |
| 04/29/2009 | CN100483884C High power motor over-voltage protection device |
| 04/29/2009 | CN100483881C Relay protection device |
| 04/28/2009 | US7525826 Switching power supply apparatus and method |
| 04/28/2009 | US7525782 Adaptive protection algorithm and system |
| 04/28/2009 | US7525777 Fireguard circuit |
| 04/23/2009 | WO2009051521A1 Thermal protection device for a submersible electric motor |
| 04/23/2009 | US20090103336 Control apparatus |
| 04/23/2009 | DE102007051051A1 Akkumulator-Gerät-Kombination und Akkumulator Accumulator device combination and accumulator |
| 04/23/2009 | DE102007045986A1 Verfahren und Vorrichtung zur Reversiererkennung bei einer elektrischen Betätigungseinheit eines Fahrzeugs Method and apparatus for Reversiererkennung at an electric actuation unit of a vehicle |
| 04/23/2009 | DE102007044483A1 Schutzschaltung zum Schutz einer Halbbrückenschaltung Protection circuit for protecting a half-bridge circuit |
| 04/23/2009 | DE102004062224B4 Halbleitervorrichtung und Halbleitervorrichtungsmodul Semiconductor device and semiconductor device module |
| 04/22/2009 | EP2050175A1 Switch and motor assembly |
| 04/22/2009 | EP2050174A2 Overload prevention device for permanent magnet dc motors |
| 04/22/2009 | EP2049799A2 Systems and methods for power ride-through in variable speed drives |
| 04/22/2009 | EP1761984A4 Engine driven power inverter system with cogeneration |
| 04/22/2009 | EP1264383A4 Ac/dc chopper for power tool |
| 04/22/2009 | EP1186085B1 Electromotive drive |
| 04/22/2009 | CN201226445Y High-analysis multimedia interface device and control chip thereof |
| 04/22/2009 | CN201226444Y Control device for protecting low-voltage motor |
| 04/22/2009 | CN201226416Y Special grounding network for restraining DC magnetic bias phenomena transformer neutral point |
| 04/22/2009 | CN201226022Y Route selection apparatus for low current grounding fault |
| 04/22/2009 | CN101414802A Pure rectifying type silicon-controlled excitation equipment with alteration terminal |
| 04/22/2009 | CN101414749A Protection device for rechargeable battery set |
| 04/22/2009 | CN101414748A Method for starting control circuit and protecting power supply control chip |
| 04/22/2009 | CN101414747A Overcurrent protective device for DC brush motor |
| 04/22/2009 | CN101414746A Current protector |
| 04/22/2009 | CN101414745A Motor protection device and method |
| 04/22/2009 | CN101414744A Grounding protection method for stator of dual-frequency injection type power generator |
| 04/22/2009 | CN100481715C Electric level detector for protection control power amplifier and power amplifier thereof |
| 04/22/2009 | CN100481693C System and method for electrification reset and under-voltage locking scheme |
| 04/22/2009 | CN100481666C A method for judging multi-fault based on line fault state and real power on control section |
| 04/22/2009 | CN100481664C Isolated measurement circuit for sensor resistance |
| 04/22/2009 | CN100480712C Method for measuring power-supply grounded resistance triple-bridged arm of electric system |
| 04/21/2009 | US7522432 Switching regulator and control circuit and method used therein |
| 04/21/2009 | US7522399 Surge arrester |
| 04/21/2009 | US7522396 Electrostatic discharge protection circuit |
| 04/21/2009 | US7522393 Fault current limiter |
| 04/21/2009 | US7521905 High power permanent magnet alternator with improved controlled output |
| 04/21/2009 | US7521903 Monolithic alternator regulator with configurable regulation modes |
| 04/21/2009 | US7521900 Method and assembly for insulating polarized device |
| 04/16/2009 | WO2009048877A2 Superconducting switch operation |
| 04/16/2009 | WO2009019096A3 A method for managing a fault event in a network for distributing electrical energy, and a corresponding electronic protection unit. |
| 04/16/2009 | WO2007025257A3 A relay-to-relay direct communication system and method in a electric power system |
| 04/16/2009 | WO2006116710A3 System and method for driving a power field-effect transistor (fet) |
| 04/16/2009 | US20090097284 Switching power supply |
| 04/16/2009 | US20090097173 Incoming current suppression device |
| 04/16/2009 | US20090097171 Apparatus and method for operation of an electrical machine |
| 04/16/2009 | US20090096398 Robust blower motor startup technique |
| 04/16/2009 | US20090096286 High voltage battery impact protection system for automotive vehicle |
| 04/16/2009 | US20090095245 Circuit for protecting against shorts in starter motor and battery charging cables |
| 04/16/2009 | DE102007043679A1 Overload current control circuit for direct current motor has voltage polarity switching circuit that controls the single polarity of the sampling voltage of the sampling resistor terminals |
| 04/15/2009 | EP2048679A1 Circuit breaker assembly |
| 04/15/2009 | EP1110288B1 Drive device and method for moving a vehicle part |
| 04/15/2009 | CN201222714Y Over-current protection circuit for switch magneto resistance speed-regulating motor |
| 04/15/2009 | CN201222713Y Brushless DC motor controller with phase-lacking protection |
| 04/15/2009 | CN201222661Y Lithium battery protection device with zero discharging function during storage period |
| 04/15/2009 | CN201222657Y Control integrated circuit for lithium battery charger and control circuit for polar change-over switch |
| 04/15/2009 | CN201222655Y Self-control compensation integrated machine for screw pump |
| 04/15/2009 | CN201222650Y Apparatus for monitoring and protecting power distribution of transformer house |
| 04/15/2009 | CN201222649Y Overdischarging protection circuit capable of charging battery |
| 04/15/2009 | CN201222648Y Apparatus for protecting and monitoring capacitor set status |
| 04/15/2009 | CN201222647Y Switch power source |
| 04/15/2009 | CN201222646Y Electric control circuit FOR air compressor |
| 04/15/2009 | CN201222645Y Automatic protection construction device for preventing three-phase AC electric motor from burning |
| 04/15/2009 | CN201220316Y Protective circuit of contravariant welding machine |
| 04/15/2009 | CN101411032A Controller |
| 04/15/2009 | CN101409510A Switching mode power supply apparatus and power supply method thereof |
| 04/15/2009 | CN101409462A Multilevel monitor-control method for monitoring and controlling hyposynchronous oscillation of synthesis power generating plant and electric network information |
| 04/15/2009 | CN101409460A Visual locale bus power distribution system apparatus for dangerous situation |
| 04/15/2009 | CN101409443A Line differential protection method capable of adapting by-path running status automatically |
| 04/15/2009 | CN101409442A Rapid line backup protection method with reliable selection based on wide area measuring system |
| 04/15/2009 | CN101409441A Overcurrent protection circuit for switch magneto resistance speed-regulating motor |
| 04/15/2009 | CN100479316C 电源装置 Power supply unit |
| 04/15/2009 | CN100479293C Cordless power tool with a protected weak link element |
| 04/15/2009 | CN100478697C Load current detection method for circuit breaker |
| 04/14/2009 | US7518889 Method and apparatus for conditional response to a fault condition in a switching power supply |
| 04/14/2009 | US7518838 Protection of variable frequency power systems from excessive peak electrical potentials |
| 04/14/2009 | US7518837 Control device for soft starting and protecting overload of motor |
| 04/14/2009 | US7518341 Method for verifying smart battery failures by measuring input charging voltage and associated systems |
| 04/14/2009 | US7518328 Method and device for commutating electromechanical actuators |
| 04/14/2009 | CA2409511C Method and device for detecting accidental arcs |
| 04/09/2009 | WO2009043698A1 Method and device for identifying a reversing operation in an electric actuating unit of a vehicle |
| 04/09/2009 | WO2009043657A1 Diagnostic method and device in integrated power bridge circuits |
| 04/09/2009 | WO2009043302A1 Multi-cell protection circuit and method |
| 04/09/2009 | WO2009043186A2 Arrangement for protecting inverters comprising an intermediate voltage circuit from a bridge short-circuit |
| 04/09/2009 | WO2006086318A3 Safety shield for use with different diameter racking rods and an adaptor for use therewith |
| 04/09/2009 | WO2005049357A3 Electronic control system and method for an auxiliary device interlock safety system |
| 04/09/2009 | US20090091867 Transformer Through-Fault Current Monitor |
| 04/09/2009 | US20090091866 Shift switching device and shift switching method |
| 04/09/2009 | US20090091279 Control unit for an electric motor, in particular for a fan motor |
| 04/09/2009 | DE19758796B4 Verfahren zur Steuerung und Regelung der Verstellbewegung eines translatorisch verstellbaren Bauteils in Fahrzeugen Method for controlling and regulation of the adjusting movement of a translatory displaceable component in vehicles |
| 04/09/2009 | DE102007045899A1 Discharge protection device for use in vehicle i.e. car, battery, has control device with detection device for detecting indication parameter that indicates that engine is stopped and component is switched-off by changing value |
| 04/09/2009 | DE102006017429B4 Schaltungsanordnung zur Einstellung eines konstanten Motorkippmoments eines 2-phasigen Synchronmotors Circuit arrangement for setting a constant pull-out torque of a 2-phase synchronous motor |
| 04/08/2009 | EP2045610A1 Location of a fault in a medium-voltage public distribution system |
| 04/08/2009 | EP2044283A1 Method and device for protection against jamming in a motor-driven locking system |
| 04/08/2009 | EP1755431A4 Central vacuum cleaning system control subsystems |
| 04/08/2009 | CN201219244Y Industrial frequency single-phase inverter apparatus |