Patents for H02H 3 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection (33,031) |
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09/26/2013 | WO2013139382A1 Current control apparatus |
09/26/2013 | WO2013139335A2 Multi-location current feed in a consumer power circuit with line protection |
09/26/2013 | US20130250469 Use of fuses to connect parallel columns of metal oxide varistors |
09/26/2013 | US20130250466 Short circuit apparatus and method |
09/26/2013 | US20130250464 Method and circuit for detecting and providing protection against an overvoltage condition |
09/26/2013 | US20130250463 Protective device for load circuit |
09/26/2013 | US20130250459 Protection device with a sandwiched cantilever breaker mechanism |
09/26/2013 | US20130250458 Leveraging inherent redundancy in a multifunction ied |
09/26/2013 | US20130249696 Load circuit disconnection detector |
09/25/2013 | CN203218857U Overvoltage protection circuit |
09/25/2013 | CN203218856U Direct-current power supply output short-circuit protection circuit |
09/25/2013 | CN203218855U Bipolar electrical simulation protection apparatus |
09/25/2013 | CN203218854U Protective device for signal output device of single-chip microcomputer for braiding machine |
09/25/2013 | CN203218853U Switching device with current limiting effect |
09/25/2013 | CN203217686U Dual-booting antitheft alarm |
09/25/2013 | CN103329382A Method and arrangement for detecting an internal failure in h-bridge connected capacitor bank |
09/25/2013 | CN103329381A Automatic reset discrimination system and method for a self powered electronic protection device |
09/25/2013 | CN103326337A Safe and reliable current transformer protection device |
09/25/2013 | CN103326336A Method and device for eliminating line protection reclosure hidden faults |
09/25/2013 | CN103326334A Thyristor rectification tractive power supply system and protective method |
09/25/2013 | CN103326332A Three-phase four-wire circuit |
09/25/2013 | CN103326323A Switching power supply protective circuit and method |
09/25/2013 | CN103326315A Under-voltage protection circuit and high-voltage integrated circuit |
09/25/2013 | CN103326314A Short circuit and overload protection device used for DC power source |
09/25/2013 | CN103326313A Intelligent initiating explosive device ignition controller |
09/25/2013 | CN103326312A Circuit breaker rapid tripping device capable of setting definite value |
09/25/2013 | CN103326311A Portable direct-current monitoring protector |
09/25/2013 | CN103326310A 通信终端及其控制方法 The communication terminal and its control method |
09/25/2013 | CN103325633A Electromagnetic type undervoltage release |
09/25/2013 | CN103324265A Power protection circuit |
09/25/2013 | CN102490783B Electrically-controlled hydraulic steering control device |
09/25/2013 | CN102255379B Mining explosion-proof dual-power switching power box |
09/25/2013 | CN101897093B Circuit configuration for operating a household appliance |
09/24/2013 | US8542473 Resistance determining system and method for circuit protection |
09/24/2013 | US8542472 Protection circuitry for reversible connectors |
09/24/2013 | US8542471 Power supply device for plasma processing |
09/19/2013 | WO2013135284A1 Charging device for an electric vehicle, and method for ensuring the charging terminal is not live |
09/19/2013 | US20130246361 System and method for generating and managing quick recovery volumes |
09/19/2013 | US20130242449 Semiconductor device |
09/19/2013 | US20130242448 Apparatus and method for protection of precision mixed-signal electronic circuits |
09/19/2013 | US20130242446 Protective semiconductor device for secondary cell |
09/19/2013 | US20130242445 Service Voltage Load Protection in an Electric Utility Meter |
09/19/2013 | US20130242444 Protective device for protection of an electrical circuit against reversal of polarity, method, circuit arrangement and vehicle system |
09/19/2013 | US20130242443 Dc power surge protector |
09/19/2013 | US20130242441 Protection relay for sensitive earth fault protection |
09/19/2013 | US20130242440 Enhanced Auto-Monitoring Circuit and Method for an Electrical Device |
09/19/2013 | US20130242439 Motor Protection and Control Apparatus, System, and/or Method |
09/19/2013 | US20130241498 Lithium starter battery and solid state switch therefor |
09/19/2013 | DE102012204333A1 Schutzvorrichtung zum Schutz einer elektrischen Schaltung vor Verpolung, Verfahren, Schaltungsanordnung und Fahrzeugsystem Protection device for protecting an electrical circuit against reverse polarity, method, and vehicle circuitry system |
09/19/2013 | DE102012204119A1 Method for minimizing current consumption of control device for e.g. transmission of motor car, involves carrying out shutdown of one of endstage components and peripherals by control circuit during lowering of voltage below lower limits |
09/19/2013 | DE102009024078B4 Gradientenkabelüberwachung Gradientenkabelüberwachung |
09/18/2013 | EP2639915A2 Over voltage protection circuit and driver circuit using the same |
09/18/2013 | EP2639914A1 Method and apparatus for adapting earth-fault protection settings in a three-phase electric network |
09/18/2013 | EP2639805A2 Method, circuit breaker and switching unit for switching off high-voltage DC currents |
09/18/2013 | EP2638610A2 Thermal memory in a fault powered system |
09/18/2013 | CN203205948U 5V output portable power source |
09/18/2013 | CN203205851U Anti-thunder remote early warning monitoring box |
09/18/2013 | CN203205837U Simple and practical surge suppression circuit and switch power supply |
09/18/2013 | CN203205833U Plug-type electric-wiring protective apparatus |
09/18/2013 | CN203205832U Preposed tripping gear of power surge protector |
09/18/2013 | CN203205831U Voltage monitoring protection circuit |
09/18/2013 | CN203205830U Resettable overvoltage and under-voltage protector with leakage protection function |
09/18/2013 | CN203205829U Power source overvoltage protecting circuit |
09/18/2013 | CN203205828U LED driving power supply input overvoltage protection circuit |
09/18/2013 | CN203205827U Current transformer secondary overvoltage protection circuit |
09/18/2013 | CN203205826U Low voltage and high voltage leakage protection circuits |
09/18/2013 | CN203205825U Flameproof long-distance short circuit protector |
09/18/2013 | CN203205824U Current detecting device |
09/18/2013 | CN203205823U Three-phase voltage regulator with load protection device |
09/18/2013 | CN203205822U Leakage protector |
09/18/2013 | CN103314302A Method and device for enhancing the reliability of generator ground fault detection on a rotating electrical machine |
09/18/2013 | CN103313493A Electronic ballast with adjustable luminance |
09/18/2013 | CN103313492A Electronic ballast with adjustable luminance |
09/18/2013 | CN103312007A Charger and low-voltage protective circuit thereof |
09/18/2013 | CN103311921A Double-power-supply incoming line switch and bus coupler switch interlocking wiring circuit |
09/18/2013 | CN103311912A Personal electric shock preventing short circuit protection system |
09/18/2013 | CN103311902A Over-current protection circuit of controller of motor of automobile |
09/18/2013 | CN103311899A Self-protection method and circuit for power lithium-ion battery pack |
09/18/2013 | CN103311894A Power supply device |
09/18/2013 | CN103311893A Over-current protection circuit for switch power supply |
09/18/2013 | CN103311886A Electric leakage protection device for preventing mistaken power outrage |
09/18/2013 | CN103311885A Electric leakage protection device |
09/18/2013 | CN103311884A Non-stick overvoltage and under-voltage protector with leakage protection function |
09/18/2013 | CN103311883A Leakage protection system and method for mine power distribution network |
09/18/2013 | CN103311882A Lightning protection system |
09/18/2013 | CN103311881A Over-current protection device and method |
09/18/2013 | CN103311880A Circuit breaker overcurrent setting system |
09/18/2013 | CN103311879A Large-power LED (Light-Emitting Diode) driver and boosting converter protection circuit thereof |
09/18/2013 | CN103311878A Bipolar electrical stimulation protection device |
09/18/2013 | CN103311877A Circuit protection device and trip unit for use with a circuit protection devicec |
09/18/2013 | CN103311876A Power supply fuse alarming circuit and alarming device |
09/18/2013 | CN103311050A Wide input voltage range power supply circuit |
09/18/2013 | CN103308115A Method of effectively eliminating potential safety hazard of automotive digital oil meter |
09/18/2013 | CN103303159A Electric automobile controller and dual-driving control method thereof |
09/18/2013 | CN101841146B Intelligent circuit breaker with overload-alarm non-tripping function and control method |
09/17/2013 | US8539265 Power protection system for power supply |
09/17/2013 | US8537517 System and method for fast-acting power protection |
09/17/2013 | US8537515 Driving circuit and semiconductor device with the driving circuit |
09/17/2013 | US8537514 Diode chain with guard-band |
09/17/2013 | US8537510 Method and apparatus for monitoring the isolation of an IT-Grid |