| Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232) |
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| 05/19/2009 | US7535686 Control of circuit breakers in a multi-phase power system |
| 05/16/2009 | CA2643229A1 Hybrid surge protector for a network interface device |
| 05/14/2009 | US20090122452 Semiconductor integrated circuit |
| 05/14/2009 | US20090122451 Esd protection circuit device |
| 05/14/2009 | DE102007053041A1 Circuit arrangement for control device, has two field effective transistors and zener-diode connected in series in anti-parallel manner, where zener-diode is connected directly between both field effective transistors |
| 05/13/2009 | EP1105958B1 A monitor circuit for a current limiting device |
| 05/13/2009 | CN201238262Y Universal electricity-saving protection controller |
| 05/13/2009 | CN201238261Y Universal electricity-saving protection controller |
| 05/13/2009 | CN201238195Y Universal electricity-saving device |
| 05/13/2009 | CN201238194Y Surge protector of field data acquisition equipment |
| 05/13/2009 | CN201238193Y Bidirectional excess voltage suppressor used for electric pneumatic valve |
| 05/13/2009 | CN201238192Y Intelligent isolation type safety grid |
| 05/13/2009 | CN201238117Y Lightning-protection electricity-saving protection circuit in single-phase socket |
| 05/13/2009 | CN201237626Y Debugging apparatus for arc suppression coil |
| 05/13/2009 | CN201237244Y Intelligent high-energy igniting means |
| 05/13/2009 | CN101431236A Arc flash elimination system, apparatus, and method |
| 05/13/2009 | CN101431235A Cascading type combined surge protector |
| 05/13/2009 | CN101431234A Dynamic electric voltage recovery device with fault current limitation function and use method thereof |
| 05/13/2009 | CN100488043C Filter network and electric system |
| 05/12/2009 | US7532450 Surge suppressor |
| 05/12/2009 | US7532448 Current limit detector |
| 05/12/2009 | US7532447 Electronic circuit configuration for connecting at least one active rotary speed sensor, especially in commercial vehicles |
| 05/12/2009 | US7532446 Protection circuit for electro static discharge |
| 05/12/2009 | US7532445 Transient voltage clamping circuit |
| 05/12/2009 | US7531916 Protection circuits for hybrid power systems |
| 05/12/2009 | US7531914 Dual path output current level control |
| 05/12/2009 | CA2552742C Apparatus and method to minimize arcing between electrical connectors |
| 05/07/2009 | WO2009059044A2 Surge protection circuit for passing dc and rf signals |
| 05/07/2009 | WO2009056587A1 Surge diverter comprising a housing and at least one diverting element, especially a varistor |
| 05/07/2009 | WO2009055853A1 High voltage saturated core fault current limiter |
| 05/07/2009 | US20090116157 Electrostatic discharge protection apparatus and method therefor |
| 05/07/2009 | US20090116156 Portable electronic device |
| 05/07/2009 | US20090116154 Discharging control apparatus of switching device for inverter |
| 05/07/2009 | DE102007051854A1 Überspannungsableiter mit einem Gehäuse und mit mindestens einem Ableitelement Surge arrester having a housing and having at least one arrester element |
| 05/06/2009 | EP2054986A1 Active lightning protection |
| 05/06/2009 | EP1797599B1 Resistive type superconductive current-limiting device comprising a strip-shaped high-tc-superconductive path |
| 05/06/2009 | EP1252656B1 Protection device for schottky diodes |
| 05/06/2009 | CN201234133Y Protection system for eliminating single phase earthing failure by neutral-point uneffect earthed electric grid |
| 05/06/2009 | CN201234132Y Neutral point protection apparatus for 110kV-220kV transformer |
| 05/06/2009 | CN201234131Y Network surge protector and installation construction thereof |
| 05/06/2009 | CN201234130Y Lightning arrester circuit for communication equipment |
| 05/06/2009 | CN201234129Y Surge protector |
| 05/06/2009 | CN201234128Y Automatic constant-current lead-in impedor |
| 05/06/2009 | CN201234127Y Leakage protection circuit and apparatus for non-balance interface |
| 05/06/2009 | CN201234117Y Control apparatus for low-voltage isolation technique |
| 05/06/2009 | CN101427467A Safety device for a semiconductor switch |
| 05/06/2009 | CN101425684A Modular lightning protection device for electric power easy for replacement |
| 05/06/2009 | CN101425353A Non-residual pressure monitor for lightning arrester |
| 05/06/2009 | CN101424729A Big dipper//GPS time service type double-system receiving antenna |
| 05/06/2009 | CN100485923C Semiconductor device of electrostatic protection circuit using thyristor as protection element |
| 05/06/2009 | CN100485922C Static discharge protection sensor and circuit |
| 05/06/2009 | CN100485556C On-line temperature differences between canopy and air irrigation decision monitoring system |
| 05/05/2009 | US7529073 Protecting medium voltage inductive coupled device from electrical transients |
| 05/05/2009 | US7529070 Power pin to power pin electro-static discharge (ESD) clamp |
| 05/05/2009 | US7529068 Protective circuit for a frequency converter |
| 05/05/2009 | US7528506 Circuit arrangement for startup current limitation for electronic modules connected to a module carrier |
| 04/30/2009 | WO2009053454A1 Apparatus for operation of a circuit arrangement |
| 04/30/2009 | WO2009032070A3 Method and system for limiting a current in an alternating current generator |
| 04/30/2009 | WO2009000809A3 Rail vehicle with a wagon body and method for protective grounding of such a wagon body |
| 04/30/2009 | WO2007005472A3 A new esd device with low trigger voltage and low leakage |
| 04/30/2009 | US20090109589 High speed automatic circuit breaker for protection |
| 04/30/2009 | US20090109588 Load driver with wire break detection circuit |
| 04/30/2009 | US20090109585 Series surge suppression structure |
| 04/30/2009 | US20090109584 Surge protection circuit for passing dc and rf signals |
| 04/30/2009 | US20090109583 Esd protection circuit for inside a power pad or input/output pad |
| 04/30/2009 | US20090109582 Method of protecting circuits using integrated array fuse elements and process for fabrication |
| 04/30/2009 | DE102008049458A1 Funkenstreckenanordnung für höhere Bemessungsspannungen The spark gap arrangement for higher voltage ratings |
| 04/30/2009 | DE102008007624A1 Antriebsvorrichtung und Energieverwaltungsmodul Driving device and Power Management Module |
| 04/30/2009 | DE102007051360A1 Vorrichtung zum Betreiben einer Schaltungsanordnung An apparatus for operating a circuit arrangement |
| 04/29/2009 | CN201230281Y Solar panel simulator |
| 04/29/2009 | CN201230209Y 380V two port seven module power supply surge protector capable of simply grounding |
| 04/29/2009 | CN201230208Y Lightning prevention equipment |
| 04/29/2009 | CN201230207Y Inserting error prevention apparatus for surge protector |
| 04/29/2009 | CN201230206Y Circuit for limiting power-on impact current |
| 04/29/2009 | CN201230205Y Electrostatic protection circuit for radio frequency circuit port |
| 04/29/2009 | CN201230070Y 电连接器 The electrical connector |
| 04/29/2009 | CN201229579Y Smart card communication control circuit construction |
| 04/29/2009 | CN101421897A Power supply device and power supply device control method |
| 04/29/2009 | CN101421896A ESD clamp control by detection of power state |
| 04/29/2009 | CN101420122A Protection circuit for protecting groove insulation of motor winding |
| 04/29/2009 | CN101420121A Surge protecting circuit |
| 04/29/2009 | CN100483914C Overvoltage protector for electric power system, AC/DC converter and DC/DC converter composed of the same electric power system |
| 04/29/2009 | CN100483886C Cross talk reduction for electrical connectors |
| 04/29/2009 | CN100483714C Circuit for preventing latch-up in cmos memory cell |
| 04/28/2009 | US7525781 Snubber circuit |
| 04/28/2009 | US7525779 Diode strings and electrostatic discharge protection circuits |
| 04/28/2009 | US7525777 Fireguard circuit |
| 04/28/2009 | US7525350 Zero-waiting-current precise over-voltage comparator |
| 04/23/2009 | WO2009052517A2 Surge suppression device having one or more rings |
| 04/23/2009 | WO2009010949A3 Device, system and method for charger switch adaptor |
| 04/23/2009 | WO2007053272A3 Electrostatic discharge (esd) protection circuit for multiple power domain integrated circuit |
| 04/23/2009 | WO2006122192A3 Universal termination system for power tools |
| 04/23/2009 | WO2006093830A3 Internally overlapped conditioners |
| 04/23/2009 | US20090103226 Surge suppression device having one or more rings |
| 04/23/2009 | US20090103225 Energy pathway arrangement |
| 04/23/2009 | US20090103223 Power circuit with short-circuit protection circuit |
| 04/23/2009 | US20090103222 Overcurrent protection system and method |
| 04/23/2009 | US20090103218 Surge suppression system with overload disconnect |
| 04/23/2009 | US20090103217 System and apparatus for limiting current in a superconducting coil |
| 04/23/2009 | DE202009002522U1 Lastwiderstand mit definierter Kurzschluss-Sicherung Load resistance with defined short-circuit protection |