| Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232) |
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| 07/17/2013 | EP2615717A2 Over-voltage protection device for resonant wireless power transmission device and method for controlling the over-voltage protection device |
| 07/17/2013 | CN203072220U Clamping circuit for inverse peak voltage of dimming inductor |
| 07/17/2013 | CN203072036U Information processor |
| 07/17/2013 | CN203072030U Straight type household information controlled device |
| 07/17/2013 | CN203071575U High-voltage very fast transient overvoltage protection device |
| 07/17/2013 | CN203071574U Device preventing closing coil of high-voltage breaker from burn-out |
| 07/17/2013 | CN203071573U Intrinsically safe protective circuit for transmitting coil of mining transient electromagnetic instrument |
| 07/17/2013 | CN203071572U Transformer circuit device |
| 07/17/2013 | CN203071568U IGBT (Insulated Gate Bipolar Translator) driving?and?protection?circuit |
| 07/17/2013 | CN203070458U Applicative protector |
| 07/17/2013 | CN203070457U Alarm device capable of being easily operated |
| 07/17/2013 | CN203066790U Double-open timing type safety door |
| 07/17/2013 | CN103208800A Real-time monitoring system and method for power grid |
| 07/17/2013 | CN103208792A Follow-current-free discharging tube module with tripping function |
| 07/17/2013 | CN103208791A Rapid power transformer magnet and metal oxide varistor MOV resonance eliminating method |
| 07/17/2013 | CN103208790A Overvoltage protecting device for resonance wireless power receiving apparatus and controlling method thereof |
| 07/17/2013 | CN103208789A Controllable quiescent current limiting acceleration protection circuit |
| 07/17/2013 | CN103208788A Intelligent dynamic power distribution network neutral-point grounding method and complete device |
| 07/17/2013 | CN102170118B Power supply clamping position ESD (electronic static discharge) protecting circuit |
| 07/17/2013 | CN102157924B Short circuit current limiter controlled by current transformers |
| 07/17/2013 | CN102065635B Communication apparatus and withstand voltage test method |
| 07/17/2013 | CN102035197B Three-phase current limiting device and method |
| 07/16/2013 | US8488290 Protective device |
| 07/16/2013 | US8488289 Current protection circuit for intelligent power switch |
| 07/16/2013 | US8488288 Input protection method with variable tripping threshold and low parasitic elements |
| 07/16/2013 | US8488285 Active current surge limiters with watchdog circuit |
| 07/16/2013 | US8488283 Load drive device |
| 07/16/2013 | US8487635 System and method for determining system charging current |
| 07/16/2013 | CA2467450C Modular surge suppressor system and surge suppressor module |
| 07/11/2013 | US20130176654 Over-current protection device and battery protection circuit assembly containing the same |
| 07/11/2013 | US20130176653 Over-voltage protection device for resonant wireless power reception device and method for controlling the over-voltage protection device |
| 07/11/2013 | US20130176652 Over-voltage protection device for resonant wireless power transmission device and method for controlling the over-voltage protection device |
| 07/11/2013 | US20130176651 Diagnosable reverse-voltage protection for high power loads |
| 07/11/2013 | US20130176647 Driver circuit and method of generating an output signal |
| 07/11/2013 | DE102013000251A1 Dimmersteuerung mit Softstart-Überstromschutz Dimmer control with soft start-overcurrent protection |
| 07/10/2013 | EP2612411A1 High voltage electronic switches for controlling direct current arcs in high voltage direct current systems and methods of operating the same |
| 07/10/2013 | CN203057289U Receiver having no signal loss |
| 07/10/2013 | CN203057047U Coil drive circuit |
| 07/10/2013 | CN203056700U Electricity-taking apparatus of high-voltage power transmission line |
| 07/10/2013 | CN203056577U Universal type switching value acquisition circuit |
| 07/10/2013 | CN203056576U Lightning-protection and anti-surge protector for special bus for oil depot |
| 07/10/2013 | CN203056575U POE network lightning arrester |
| 07/10/2013 | CN203056574U Lightning vector control surge protector |
| 07/10/2013 | CN203056573U Secondary overvoltage protector for current transformer |
| 07/10/2013 | CN203056572U A surge voltage suppressing circuit |
| 07/10/2013 | CN203056571U Low residual voltage lightning protection device for power supply |
| 07/10/2013 | CN203056570U Lightning protection device of photovoltaic inverter |
| 07/10/2013 | CN203056569U Overvoltage protector |
| 07/10/2013 | CN203056568U Lightning protection module |
| 07/10/2013 | CN203056567U SPD downlead ground line connection structure |
| 07/10/2013 | CN203056566U Synchronic multi-pulse lightning protection box |
| 07/10/2013 | CN203056565U Induction cooker surge protection circuit |
| 07/10/2013 | CN203056564U Ground choke flow control screen for oil-submersible electric pump machine set in-the-pit real time monitoring system |
| 07/10/2013 | CN203056563U Electric network current limiting device, electric network current limiter and electric network current limiting system |
| 07/10/2013 | CN203056562U Thunder frequency impedance control unit and lightning protection circuit |
| 07/10/2013 | CN203056547U Transformer neutral point asymmetric grounding device |
| 07/10/2013 | CN203056544U Casing electric leakage protection circuit and road traffic signal control machine using the circuit |
| 07/10/2013 | CN203056540U Auxiliary output protective circuit for Set Top Box circuit board |
| 07/10/2013 | CN203054026U Protection circuit of input and output end of measuring instrument |
| 07/10/2013 | CN103199520A Parallel operation control method for multiple arc suppression coils of wind power plant |
| 07/10/2013 | CN103199519A Generator rotor field suppression and overvoltage protection device |
| 07/10/2013 | CN103199518A Lightning protection method of distribution line near microwave tower |
| 07/10/2013 | CN103199517A Device off hook thunder-proof method and device |
| 07/10/2013 | CN103199516A Alternating current protection circuit and system lightning-protection circuit |
| 07/10/2013 | CN103199515A Optoelectronic isolation thunder-resisting protector |
| 07/10/2013 | CN103199514A Method of eliminating ferromagnetic resonances |
| 07/10/2013 | CN103199513A Static electricity protection circuit, display device and static electricity protective method |
| 07/10/2013 | CN103199491A Novel design that electricity leakage occurs to household appliances, electric shock cannot occur to people |
| 07/10/2013 | CN103199393A Universal serial bus (USB) connecting device and electronic product |
| 07/10/2013 | CN103199090A Electrostatic protective circuit and battery protective circuit thereof |
| 07/10/2013 | CN103198910A Thermistor element |
| 07/10/2013 | CN102157925B Method and apparatus for an in-rush current circuit |
| 07/10/2013 | CN101944739B Digital arc suppression coil structure according with IEC (International Electrotechnical Commission) 61850 standard |
| 07/10/2013 | CN101687466B Rail vehicle with a wagon body and method for protective grounding of such a wagon body |
| 07/10/2013 | CN101165712B 半导体装置 Semiconductor device |
| 07/09/2013 | US8482894 Source driver current fold-back protection |
| 07/09/2013 | US8482893 Integrated photovoltaic source circuit combiner and protection subsystem |
| 07/09/2013 | US8482892 Alternating current overload protection apparatus and method |
| 07/09/2013 | US8482891 Electrostatic discharge protection circuit |
| 07/09/2013 | US8482889 Band-pass structure electrostatic discharge protection circuit |
| 07/09/2013 | US8482888 ESD block with shared noise optimization and CDM ESD protection for RF circuits |
| 07/09/2013 | US8482887 Ground-fault circuit interrupter with circuit condition detection function |
| 07/09/2013 | US8482886 Protection circuit, resonant converter including the protection circuit, and protecting method of the resonant converter |
| 07/09/2013 | US8482885 Hybrid switch circuit |
| 07/04/2013 | WO2013102012A1 Device and system for reducing overvoltage damage |
| 07/04/2013 | US20130170085 Power supply apparatus including overvoltage protection function |
| 07/04/2013 | US20130170082 Integrated circuit having a charged-device model electrostatic discharge protection mechanism |
| 07/04/2013 | US20130170081 Trigger circuit and method of using same |
| 07/04/2013 | US20130170080 Esd protection circuit cell |
| 07/04/2013 | DE102011106632B4 Wechselrichter mit Überwachung des Feuchtezustandes und Betriebsverfahren Inverter with monitoring of moisture condition and operating procedures |
| 07/03/2013 | EP2610885A1 Exciting inrush current suppression apparatus |
| 07/03/2013 | CN203039778U Life-area sensor |
| 07/03/2013 | CN203039364U Wind power generation induction generator surge protection device |
| 07/03/2013 | CN203039363U Three-phase surge protector |
| 07/03/2013 | CN203039362U Electric locomotive frequency transformer internal braking circuit board |
| 07/03/2013 | CN203039361U Surge protection device suitable for 10/350muS lightning waves |
| 07/03/2013 | CN203039360U Power surge protector provided with self-arc-breaking device |
| 07/03/2013 | CN203039359U Starting device of transformer low-voltage side high-speed short-circuit current limiter |
| 07/03/2013 | CN203038392U Convenient anti-interference guard device |
| 07/03/2013 | CN203034945U Alerting device with double functions |