| 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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| 04/10/2013 | CN101924363B Protection circuit for preventing misoperations and solar power generation system applying same |
| 04/10/2013 | CN101714749B Electronic circuit breaker |
| 04/10/2013 | CN101707166B Built-in B type intelligent circuit breaker with automatic closing function |
| 04/10/2013 | CN101682183B Power switch for preventing accidental arcs |
| 04/10/2013 | CN101673927B Method for starting recloser of extra high-voltage transmission line |
| 04/09/2013 | US8416550 Solid state breaker circuit for direct current applications |
| 04/09/2013 | US8416548 Device for controlling a MOS transistor |
| 04/09/2013 | US8416547 Short circuit protection with reduced offset voltage |
| 04/09/2013 | US8416546 Method and circuit arrangement for detecting the state of a load device which can be connected to a switching connection |
| 04/09/2013 | US8416544 Semiconductor integrated circuit including internal circuits and electrostatic discharge protection circuits |
| 04/09/2013 | CA2660382C Ground fault detection |
| 04/04/2013 | WO2013047927A1 Device and method for automatically coordinating protection device of smart power distribution management system |
| 04/04/2013 | WO2013046456A1 Power source device |
| 04/04/2013 | WO2013045238A1 Dc voltage circuit breaker |
| 04/04/2013 | WO2013045201A1 Dc voltage circuit breaker |
| 04/04/2013 | WO2013045075A1 Protection element having integrated distance protection with real time adaptation of the trigger time for detecting and separating high impedance errors in meshed networks |
| 04/04/2013 | WO2013005932A3 Spark arresting apparatus and method for a relay module |
| 04/04/2013 | US20130083442 Semiconductor device |
| 04/04/2013 | DE102011083826A1 Messwiderstand und Verfahren zur Messung des elektrischen Stromes Measuring resistor and method for measuring the electric current |
| 04/04/2013 | DE102011083680A1 Power switch, has regulation unit that regulates voltage tapped at tap at rectifier, and regulation unit tapping point provided between diode and resistor-capacitor combination and coupled with capacitor |
| 04/03/2013 | EP2575228A1 Lightning protection circuit |
| 04/03/2013 | EP2575226A2 Overvoltage protection circuit. |
| 04/03/2013 | EP2490311A9 Method and apparatus for detecting earth fault |
| 04/03/2013 | CN202856704U True reverse current blocking equipment and system |
| 04/03/2013 | CN202856634U Capacitance voltage-reducing type power supply circuit with circuit protective function |
| 04/03/2013 | CN202856614U Intelligent power-factor corrector realized in embedded manner |
| 04/03/2013 | CN202856351U Supply circuit for direct-current variable-frequency air-conditioner and direct-current variable-frequency air-conditioner |
| 04/03/2013 | CN202856341U Antenna type lightning protection device used in radio communication |
| 04/03/2013 | CN202856338U Overheat, over-current and over-voltage lightning protector and lightning protection circuit |
| 04/03/2013 | CN202856323U Hiccup mode short circuit protection circuit |
| 04/03/2013 | CN202856321U Dryer motor current alarm device |
| 04/03/2013 | CN202856317U LED light bar short circuit protection control circuit |
| 04/03/2013 | CN202856316U Minitype aerogenerator grid-connected system |
| 04/03/2013 | CN202856315U Intelligent phase failure leakage breaker |
| 04/03/2013 | CN202856314U Residual current circuit breaker having self-setting function |
| 04/03/2013 | CN202856313U Breaker with residual current protection operation |
| 04/03/2013 | CN202856312U Integrated intelligent protection device |
| 04/03/2013 | CN202856311U Self-diagnosis open-phase protector |
| 04/03/2013 | CN202856310U Power failure protector of remote control power supply |
| 04/03/2013 | CN202856309U Power supply voltage monitoring circuit |
| 04/03/2013 | CN202856308U Low-voltage and overvoltage protection circuit |
| 04/03/2013 | CN202856307U Multifunctional protection device |
| 04/03/2013 | CN202856306U Reverse connection protection and overvoltage protection circuit based on bidirectional silicon controlled rectifier |
| 04/03/2013 | CN202856305U Low-voltage intelligent circuit breaker |
| 04/03/2013 | CN202856304U Current selective pass control assembly |
| 04/03/2013 | CN202852128U Protection and drive circuit of low-power electromagnetic coil |
| 04/03/2013 | CN103026578A Charger for electric propulsion vehicles and leakage confirmation method applied to same |
| 04/03/2013 | CN103026571A Photovoltaic bipolar to monopolar source circuit converter with frequency selective grounding |
| 04/03/2013 | CN103025003A Integrated control drive device for solar light-emitting diode (LED) illumination |
| 04/03/2013 | CN103024973A LED (Light-Emitting Diode) lamp and overcurrent protection circuit thereof |
| 04/03/2013 | CN103023424A Low-voltage protection method and crane with low-voltage protection function |
| 04/03/2013 | CN103023401A Brushless direct current evaporator blower |
| 04/03/2013 | CN103023297A Starting protective circuit suitable for wide voltage input range |
| 04/03/2013 | CN103022994A Method for achieving fault isolation and recovery of power distribution network with permeability distribution type power supply |
| 04/03/2013 | CN103022990A Leakage protection system based on two-line |
| 04/03/2013 | CN103022970A High-sensitivity earth wire voltage protection device |
| 04/03/2013 | CN103022969A Leakage protection device for electromobile |
| 04/03/2013 | CN103022968A Protection circuit, control method of protection circuit, telecommunication plug-in shelf device |
| 04/03/2013 | CN103022967A Active lightning protector |
| 04/03/2013 | CN103022966A Hot plug protection circuit for remote direct-current supply of RS485 bus |
| 04/03/2013 | CN103022965A Monitoring circuit of 12V voltage in electric vehicle electric drive controller |
| 04/03/2013 | CN103022964A Electric shock and leakage protection system for mining trolley locomotive |
| 04/03/2013 | CN103022963A High-end over-current protection circuit |
| 04/03/2013 | CN103022962A Circuit breaker and method for checking a rogowski converter in a circuit breaker |
| 04/03/2013 | CN103022961A Circuit protection device, electronic circuit containing device, and circuit protection method |
| 04/03/2013 | CN103022960A Split-type three-phase current mutual inductor interchange circuit |
| 04/03/2013 | CN103019348A Notebook computer power supply with over-current protection function |
| 04/03/2013 | CN102324717B Leakage protection device |
| 04/03/2013 | CN101931206B Over-current protection method |
| 04/03/2013 | CN101883466B Crest factor overcurrent protection circuit applied to electronic ballast |
| 04/02/2013 | US8412966 Voltage sensing circuitry for solid state power controllers |
| 04/02/2013 | US8412432 Protective arrangement for the protection of safety-relevant electronic circuits from malfunctions |
| 04/02/2013 | US8412386 Adaptive relaying controlled by autonomous event detection |
| 04/02/2013 | US8411404 Overvoltage protection plug |
| 04/02/2013 | US8411400 Method and apparatus for mitigation of dynamic overvoltage |
| 04/02/2013 | US8411399 Defectivity-immune technique of implementing MIM-based decoupling capacitors |
| 04/02/2013 | CA2624465C Systems, methods, and apparatus for indicating faults within a power circuit utilizing dynamically modified inrush restraint |
| 04/02/2013 | CA2563190C Circuit interrupting device with a single test-reset button |
| 03/28/2013 | WO2013043005A2 Economical power cable distribution system |
| 03/28/2013 | WO2013042216A1 Charging system for electric vehicle and charging control method |
| 03/28/2013 | WO2012148774A3 Integrated protection devices with monitoring of electrical characteristics |
| 03/28/2013 | WO2012123014A3 A current limitation system for limiting the effects of a fault in a dc grid and a method of operating a current limitation system |
| 03/28/2013 | US20130077203 Overcharge prevention circuit and semiconductor device |
| 03/28/2013 | US20130077202 Shunt protection module and method for series connected devices |
| 03/28/2013 | US20130077201 Overvoltage protection using a link current sensor |
| 03/28/2013 | US20130077200 Overvoltage protection circuit |
| 03/28/2013 | US20130077199 Esd protection device |
| 03/28/2013 | US20130075531 Electric circuit and sensor for detecting arcing and a transparency having the circuit and sensor |
| 03/27/2013 | EP2573890A1 System and method for circuit overcurrent protection |
| 03/27/2013 | EP2572411A1 Method and apparatus for controlling distribution of power |
| 03/27/2013 | DE202012102992U1 Ladeanschlussvorrichtung für Elektrofahrzeuge Charging Connector device for electric vehicles |
| 03/27/2013 | CN202841092U High-side switch output circuit with short-circuit protection function |
| 03/27/2013 | CN202840673U Double power switch control system |
| 03/27/2013 | CN202840519U Dynamic voltage fluctuation compensator for realizing multi-target control |
| 03/27/2013 | CN202840507U Low residual voltage and high power frequency tolerance surge protector |
| 03/27/2013 | CN202840478U Stage flue gas turbine overheating protection circuit |
| 03/27/2013 | CN202840474U Leakage protective circuit |
| 03/27/2013 | CN202840473U Three-phase four-wire high-power electronic-control leakage protection switch |
| 03/27/2013 | CN202840472U Electric leakage protection device |
| 03/27/2013 | CN202840471U Low-voltage neutral line brake protection system based on PMU (power management unit) synchronous phasor measurement |