| 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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| 06/12/2013 | EP2601535A2 Method and device for parasitic current detection |
| 06/12/2013 | CN202997915U Power adapter having residual current protection function |
| 06/12/2013 | CN202997672U Novel mining intrinsic safe power supply |
| 06/12/2013 | CN202997541U Video monitoring system surge protector capable of providing remote warning signal |
| 06/12/2013 | CN202997524U Intelligent universal type three phase protector |
| 06/12/2013 | CN202997507U Residual current action protective device |
| 06/12/2013 | CN202997506U A residual current protective device with a wide dynamic range |
| 06/12/2013 | CN202997505U Highly-sensitive earth-wire live voltage protection device |
| 06/12/2013 | CN202997504U Electronic overload relay with open-phase protection function |
| 06/12/2013 | CN202997503U Self-restoring type overvoltage and undervoltage protector achieving zero crossing point switching-on and switching-off |
| 06/12/2013 | CN202997502U Vehicle wide voltage DC-DC freewheeling circuit |
| 06/12/2013 | CN202997501U High and low voltage protection circuit |
| 06/12/2013 | CN202997500U Electronic overload relay |
| 06/12/2013 | CN202997499U Electric equipment overload automatic warning device |
| 06/12/2013 | CN202997498U Universal electronic current relay |
| 06/12/2013 | CN202997497U Short-circuit protection circuit based on hall current sensor and digital voltage comparator |
| 06/12/2013 | CN202997496U Metro direct-current protection apparatus |
| 06/12/2013 | CN202997495U Photovoltaic serial component protective device |
| 06/12/2013 | CN202997211U A manually-reset overload and overtemperature protection power socket |
| 06/12/2013 | CN103155328A Protection system for electrical power distribution system using directional current detection and logic within protective relays |
| 06/12/2013 | CN103151765A Self-adaptive zero-time difference over-current protection method |
| 06/12/2013 | CN103151763A Fault identification and protection method of electrified railway AT traction network |
| 06/12/2013 | CN103151762A Differential protection method of non-power-cut line replacing operation of by-pass switch |
| 06/12/2013 | CN103151758A Voltage and current type electric leakage plug |
| 06/12/2013 | CN103151757A Photovoltaic direct-current co-current and counter-current bidirectional protection system |
| 06/12/2013 | CN102163878B Method for classifying and realizing integral alarm facing to dispatching running way |
| 06/12/2013 | CN102064719B LED (Light Emitting Diode) backlight power source circuit, backlight power source and multimedia device |
| 06/12/2013 | CN102035190B Over-current protection circuit |
| 06/12/2013 | CN102035170B PFC output overvoltage protection circuit |
| 06/12/2013 | CN101976815B Loaded multifunctional protection circuit |
| 06/12/2013 | CN101926068B Overvoltage protection circuit and power supply system |
| 06/12/2013 | CN101882860B Insulated gate bipolar translator (IGBT) drive and protection circuit |
| 06/12/2013 | CN101816108B Electrical device for low-voltage applications |
| 06/12/2013 | CN101765953B Earth leakage circuit breaker with function for detecting reverse leakage current |
| 06/12/2013 | CN101742188B LCD (Liquid Crystal Display)-TV power supply voltage detection circuit |
| 06/11/2013 | US8464078 Delay circuit with reset feature |
| 06/11/2013 | US8462477 Junction field effect transistor for voltage protection |
| 06/11/2013 | US8462476 Method and apparatus for providing differential protection for an electrical link in a medium, high, or very high voltage network |
| 06/11/2013 | US8462473 Adaptive electrostatic discharge (ESD) protection circuit |
| 06/11/2013 | US8462472 Electric safety circuit for use with an electric receptacle |
| 06/11/2013 | US8462471 Circuit interrupting device with high voltage surge protection |
| 06/06/2013 | WO2013079110A1 Selectivity module with serial status signal |
| 06/06/2013 | US20130141828 Power source apparatus formed by combining a plurality of modules |
| 06/06/2013 | US20130141827 Fault parameter indicator device and related methods |
| 06/06/2013 | US20130141822 Protective Electrical Wiring Device With Tamper Resistant Shutters |
| 06/06/2013 | US20130141042 Method for charging a rechargeable energy store, charging device for a rechargeable energy store, and circuit breaker |
| 06/06/2013 | US20130141025 Motor drive circuit |
| 06/06/2013 | US20130139384 Photovoltaic string combiner with disconnect having provision for converting between grounded and ungrounded systems |
| 06/06/2013 | DE19700828C5 Verfahren zum Betrieb einer automatischen Türanlage A method for operating an automatic door system |
| 06/06/2013 | DE102011087808A1 Schaltungsanordnung für ein Haushaltsgerät und Haushaltsgerät mit einer Schaltungsanordnung Circuit arrangement for a household appliance and home appliance with a circuit |
| 06/05/2013 | EP2600484A1 Charger for electric propulsion vehicles and leakage confirmation method applied to same |
| 06/05/2013 | EP2599178A2 Protective circuit |
| 06/05/2013 | CN202978910U Digital satellite receiver and LNB power supply control circuit thereof |
| 06/05/2013 | CN202978281U Low-voltage capacitance compensation system |
| 06/05/2013 | CN202978246U Protective circuit and light fixture employing protective circuit |
| 06/05/2013 | CN202978233U Direction-current power source protection device |
| 06/05/2013 | CN202978229U Motor controller |
| 06/05/2013 | CN202978222U High-voltage electric furnace discharge protector |
| 06/05/2013 | CN202978218U Intelligent earth leakage protection device for urban rail transit |
| 06/05/2013 | CN202978217U Single-phase electric leakage zero interruption protective switch |
| 06/05/2013 | CN202978216U Current separation action type electric leakage protection device based on DSP |
| 06/05/2013 | CN202978215U Full-automatic overvoltage and under-voltage time-delay protector |
| 06/05/2013 | CN202978214U Low voltage sag apparatus |
| 06/05/2013 | CN202978213U Power supply overvoltage protection circuit |
| 06/05/2013 | CN202978212U Practical?grounding?protection circuit |
| 06/05/2013 | CN202978211U Neutral-point earthing device |
| 06/05/2013 | CN202978210U Self-powered overcurrent relay |
| 06/05/2013 | CN202978209U Short-circuit protection circuit for power supply chip |
| 06/05/2013 | CN202978208U Circuit board equipped with overcurrent protection device |
| 06/05/2013 | CN202978207U Automatic-control lightning protection box |
| 06/05/2013 | CN202978206U New output protection circuit |
| 06/05/2013 | CN202978151U Attached-type cable insurance branching box |
| 06/05/2013 | CN103141002A Protective circuit |
| 06/05/2013 | CN103139513A Antenna power source supplying circuit, antenna control system and digital communication device |
| 06/05/2013 | CN103138606A Energy conservation type switch power source |
| 06/05/2013 | CN103138310A Simplified charger of special battery pack |
| 06/05/2013 | CN103138250A Efficient lighting protection device with independently separated three lines of power source |
| 06/05/2013 | CN103138249A Power transformer with functions of lightning protection and energy conservation and a function of preventing people from being hurt by electricity of output power grid |
| 06/05/2013 | CN103138242A Charging protection structure of multiple output mobile battery charger |
| 06/05/2013 | CN103138238A Motor control device and motor control method |
| 06/05/2013 | CN103138234A Reeding machine short circuit self-stopping protection device |
| 06/05/2013 | CN103138231A Protection circuit |
| 06/05/2013 | CN103138230A Machine shell leakage protection circuit and road traffic signal control machine using protection circuit |
| 06/05/2013 | CN103138229A Sliver plate type interrupter driven by electromagnetic repulsion force |
| 06/05/2013 | CN103138228A Circuit, method and system for overload protection |
| 06/05/2013 | CN103138227A Power distribution network fast power restoration method containing distributed power connected grid |
| 06/05/2013 | CN103138226A Automatic reclosing device with load detection function separated from breaker and control method thereof |
| 06/05/2013 | CN103138225A Design method of driving source of diode pumped laser |
| 06/05/2013 | CN102007681B Drive circuit for a DC motor, comprising an h-bridge and a motor braking circuit |
| 06/05/2013 | CN101989753B Control system for storage battery connection of communication power supply |
| 06/05/2013 | CN101783504B Protection circuit, battery system and protection method |
| 06/05/2013 | CN101673925B Control device and control method for residual current circuit-breakers |
| 06/04/2013 | US8456789 Tunable coaxial surge arrestor |
| 06/04/2013 | US8456787 Gas insulated switchgear |
| 06/04/2013 | US8456786 Bridging unit |
| 06/04/2013 | US8456785 Semiconductor ESD device and method |
| 06/04/2013 | US8456137 Current sensing circuit disconnect device and method |
| 06/04/2013 | US8456135 High voltage output monitoring device and system for a power battery |
| 05/30/2013 | WO2013077152A1 Dc feeding protection relay device and failure detection method |
| 05/30/2013 | WO2013076992A1 Transmission line protective relay device |