| Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232) |
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| 02/08/2012 | CN1973382B 具有超导开关元件的限流装置 A current limiting device having a superconducting switching element |
| 02/08/2012 | CN102349206A Lighting arrester and a power transmission line provided with such an arrester |
| 02/08/2012 | CN102347609A Manufacture method for over voltage protection element |
| 02/08/2012 | CN102347608A Thyristor switch protection-based transformer neutral point blocking system and working method thereof |
| 02/08/2012 | CN102347607A Adaptive current limiter and dimmer system including the same |
| 02/08/2012 | CN102347606A Low loss discharge circuits for emi filter capacitors |
| 02/08/2012 | CN102347605A Electrostatic discharge protection module |
| 02/08/2012 | CN101350348B 使静电电流耗散的方法 Electrostatic dissipative current method |
| 02/08/2012 | CN101329588B 过电流保护电路 The overcurrent protection circuit |
| 02/07/2012 | US8112134 Superconducting current limiter device of the resistive type having a holding element |
| 02/07/2012 | US8111495 Low forward voltage drop transient voltage suppressor and method of fabricating |
| 02/07/2012 | US8111494 Memristor-protection integrated circuit and method for protection of a memristor during switching |
| 02/07/2012 | US8111491 Overvoltage protection circuit |
| 02/07/2012 | US8111490 Method and device for protection of a switching device controlled by a control unit |
| 02/07/2012 | CA2409145C Sensitive ground fault detection system for use in compensated electric power distribution networks |
| 02/06/2012 | CA2748113A1 Motor control center and bus assembly therefor |
| 02/02/2012 | WO2012016202A2 Fast-cycling, conduction-cooled, quasi-isothermal, superconducting fault current limiter |
| 02/02/2012 | WO2012013166A1 The apparatus compensating ground currents connected to phase conductors of a distribution system |
| 02/02/2012 | WO2012013165A1 The apparatus compensating ground currents connected to a transformer neutral point |
| 02/02/2012 | WO2012013046A1 Mobile terminal |
| 02/02/2012 | US20120026761 Adaptive current limiter and dimmer system including the same |
| 02/02/2012 | US20120026637 Fault Current Limiter |
| 02/02/2012 | US20120026636 Active ac inrush current control |
| 02/02/2012 | US20120026633 Decreasing voltage detection with control signaling |
| 02/02/2012 | US20120026632 Systems, Methods, and Apparatus for Limiting Voltage Across a Switch |
| 02/02/2012 | US20120023742 Arrangement for Energy Conditioning |
| 02/02/2012 | DE102011106789A1 Vorrichtung zum Schützen eines analogen Eingangsmoduls vor einer Überspannung An apparatus for protecting an analog input module from an overvoltage |
| 02/01/2012 | EP2413532A1 Field device of a process automation assembly with two inherently safe power supply devices |
| 02/01/2012 | EP2413448A2 Active AC inrush current control |
| 02/01/2012 | EP2174228B1 Discrete hot swap and overcurrent-limiting circuit |
| 02/01/2012 | EP2067343B1 Signal distribution and surge detection and protection module and method |
| 02/01/2012 | CN202135359U 具有过压保护功能的led节能灯控制电路 Led energy saving light control circuit with Overvoltage Protection |
| 02/01/2012 | CN202134912U 一种特高压直流输电干式平波电抗器均压保护装置 One kind of UHVDC dry flat Reactor Pressure Protection Device |
| 02/01/2012 | CN202134910U 消弧线圈阻尼电阻箱后备保护系统 Petersen coil damping resistor box backup protection system |
| 02/01/2012 | CN202134909U 天线防雷器及天线浪涌保护结构 Antennas and antenna lightning surge protection structure |
| 02/01/2012 | CN202134908U 一种风力发电机组并网连接主进线的防雷保护装置 A grid-connected wind turbine lightning protection apparatus main feed line |
| 02/01/2012 | CN202134907U 智能过电压吸收保护装置 Smart overvoltage protection device to absorb |
| 02/01/2012 | CN202134906U 一种智能监控型浪涌保护器 An intelligent monitoring type surge protector |
| 02/01/2012 | CN202134905U 一种带后备保护装置的浪涌保护器 A surge protector with a backup protection device |
| 02/01/2012 | CN202134904U 高海拔自动接地系统 Automatic grounding system of high altitude |
| 02/01/2012 | CN202134903U Electrical line short circuit current limit and protection device |
| 02/01/2012 | CN102341978A Composition for filling discharge gap and electrostatic discharge protection member |
| 02/01/2012 | CN102340154A Mobile phone charging protection circuit |
| 02/01/2012 | CN102340137A Apparatus for protecting analog input module from overvoltage |
| 02/01/2012 | CN102340136A Pluggable surge protector |
| 02/01/2012 | CN102340135A Overvoltage protection structure of electric vehicle driver and electric vehicle |
| 02/01/2012 | CN102340134A Circuit system protection device |
| 02/01/2012 | CN102340123A High-voltage equipment box of high-speed motor train unit |
| 02/01/2012 | CN102339677A Contact protectin circuit and high voltage relay comprising the same |
| 02/01/2012 | CN102338358A Circuit structure of AC LED (Alternating Current Light-Emitting Diode) lighting lamp |
| 02/01/2012 | CN101699689B 一种电磁炉的浪涌响应保护电路 One kind of response cooker surge protection circuit |
| 02/01/2012 | CN101697412B 具有电子过压防护能力的静电放电保护电路 Electrostatic discharge protection circuit with an electronic overvoltage protection capability |
| 01/31/2012 | US8107209 Protection circuit |
| 01/31/2012 | US8107208 Insulated surge suppression circuit |
| 01/31/2012 | US8107207 Potted electrical circuit with protective insulation |
| 01/31/2012 | US8107206 Surge arrester |
| 01/31/2012 | US8107203 Electrostatic discharge protection device |
| 01/26/2012 | WO2012012426A2 Continuous uninterruptable ac grounding system for power system protection |
| 01/26/2012 | WO2011095375A3 Circuit assembly for overvoltage limiting of an excitation coil of a synchronous machine having fast de-excitation |
| 01/26/2012 | US20120019970 Matrix converter |
| 01/26/2012 | US20120019969 Semiconductor integrated circuit |
| 01/26/2012 | US20120019968 Transmission-line-based esd protection |
| 01/26/2012 | US20120019967 Electrostatic discharge (esd) protection for electronic devices using wire-bonding |
| 01/26/2012 | US20120019966 Systems and methods for providing arc fault and/or ground fault protection for distributed generation sources |
| 01/26/2012 | US20120019965 Continuous Uninterruptable AC Grounding System for Power System Protection |
| 01/26/2012 | DE102010032717A1 Method for operating of power semiconductor component e.g. insulated gate bipolar transistor (IGBT) , involves limiting gate-emitter voltage of power semiconductor component to critical voltage during starting phase of component |
| 01/26/2012 | DE102006022066B4 ESD-Schutzschaltung ESD protection circuit |
| 01/26/2012 | CA2805652A1 Continuous uninterruptable ac grounding system for power system protection |
| 01/25/2012 | CN202127526U LED galvanostat circuit |
| 01/25/2012 | CN202127278U Protector of emergency lighting system |
| 01/25/2012 | CN202127243U Harmonic eliminating device |
| 01/25/2012 | CN202127242U Arc extinction and overvoltage protection device |
| 01/25/2012 | CN202127239U Crow bar protection device of double feed rectifier of wind power-generating system |
| 01/25/2012 | CN202127233U Power grid fault measuring and controlling device |
| 01/25/2012 | CN202127232U Lightning-proof and overcurrent, overvoltage and undervoltage protection circuit |
| 01/25/2012 | CN202127147U Lightning-proof power socket |
| 01/25/2012 | CN202127145U Lighting protection plate |
| 01/25/2012 | CN202126462U Passive thunder collecting connector |
| 01/25/2012 | CN1708074B Method for transmitting line signal via line equipment and transmitting equipment |
| 01/25/2012 | CN102332816A Underground power supply anti-jamming protection circuit |
| 01/25/2012 | CN102332725A High potential gate control device for series thyristor valve block in SVC (Static Var Compensator) |
| 01/25/2012 | CN102332716A External millisecond-level 10kw lightning protection module |
| 01/25/2012 | CN102332715A Multipurpose signal lightning-protection method and multipurpose signal lightning-protection device |
| 01/25/2012 | CN102332714A Grounding-free direct lightning protector for three-phase power-supply system |
| 01/25/2012 | CN102332713A Anti-surge circuit for electromagnetic induction heating appliance, heating appliance and method |
| 01/25/2012 | CN102332712A Intelligent surge protector with RS485 interface |
| 01/25/2012 | CN102332711A Protection circuit, and switching device and power distribution system using same |
| 01/25/2012 | CN102332701A Safety intelligent leakage protector and control method thereof |
| 01/25/2012 | CN102332700A Anti-lightning leakage detection and protection circuit |
| 01/25/2012 | CN101714757B Anti-surge device of on-vehicle power supply |
| 01/25/2012 | CN101707366B Inter-wire superconducting current-limiting storage circuits |
| 01/25/2012 | CN101213713B Method and arrangement for triggering a series spark gap |
| 01/24/2012 | US8102633 Power supply equalization circuit using distributed high-voltage and low-voltage shunt circuits |
| 01/24/2012 | US8102632 Electrostatic discharge power clamp trigger circuit using low stress voltage devices |
| 01/24/2012 | US8102631 Computer power supply and standby voltage discharge circuit thereof |
| 01/24/2012 | US8102629 Leakage current compensation for high voltage transformers |
| 01/20/2012 | DE202011108950U1 Überspannungsschutzschaltung An overvoltage protection circuit |
| 01/19/2012 | US20120014025 Overcurrent protection circuit and semiconductor device |
| 01/19/2012 | US20120014023 Input capacitor protection circuit |
| 01/19/2012 | US20120014021 Integrated electrostatic discharge (esd) device |