| Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232) |
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| 12/22/2009 | US7636225 Arc detection circuit |
| 12/22/2009 | US7636224 Method and safety device for ground fault circuit |
| 12/22/2009 | CA2297979C Terminal block for a protective relay |
| 12/17/2009 | WO2009149750A1 A plant for transmitting electric power |
| 12/17/2009 | WO2009149744A1 A protecting apparatus |
| 12/17/2009 | US20090310271 Overcurrent breaking controller for lamps and lanterns |
| 12/17/2009 | US20090310268 Nanotube esd protective devices and corresponding nonvolatile and volatile nanotube switches |
| 12/17/2009 | US20090310267 Method, design structures, and systems for current mode logic (cml) differential driver esd protection circuitry |
| 12/17/2009 | US20090310266 METHOD AND CIRCUIT FOR eFUSE PROTECTION |
| 12/17/2009 | US20090310265 Semiconductor device |
| 12/17/2009 | US20090309129 Semiconductor ESD Device and Method of Making Same |
| 12/17/2009 | US20090309117 Protection circuit, and semiconductor device and light emitting device using such protection circuit |
| 12/17/2009 | DE202009013205U1 Überspannungsschutzgerät mit einem Gehäuse für Doppelwarnung Surge protection device comprising a housing for double warning |
| 12/17/2009 | DE102008029722B3 Leiteranordnung für ein resistives Schaltelement mit wenigstens zwei Leiterverbünden aus supraleitenden Leiterbändern Conductor arrangement for a resistive switching element having at least two conductors associations of superconducting conductor strips |
| 12/17/2009 | DE102008002330A1 Überspannungsschutzelement An overvoltage protection element |
| 12/17/2009 | DE10115869B4 Vorrichtung zum Schutz einer Endstufenschaltung An apparatus for protecting a power amplifier circuit |
| 12/17/2009 | CA2727367A1 A plant for transmitting electric power |
| 12/17/2009 | CA2725973A1 An apparatus for protecting equipment connected to a high voltage direct current line, and high voltage arrangement and a plant using the apparatus |
| 12/16/2009 | EP2132851A1 Circuit arrangement for limiting voltage |
| 12/16/2009 | EP2132753A1 Apparatus for quench protection and stabilising decay in a quasi-persistent superconducting magnet |
| 12/16/2009 | CN201365196Y Device for collecting power from high-voltage cable |
| 12/16/2009 | CN201365124Y Terminal communication bus lightning-proof and overvoltage-proof protection system of transformer substation RTU |
| 12/16/2009 | CN201365123Y Lightning-stroke protection surge power supply protection circuit |
| 12/16/2009 | CN201365122Y Switch circuit and power supply circuit |
| 12/16/2009 | CN101604841A Arc extinguishing control device for contact net |
| 12/16/2009 | CN101604840A Low cost high-voltage input step-down power supply |
| 12/16/2009 | CN100570979C Method and device for reducting energization transients in a three phase Y-connected load |
| 12/16/2009 | CN100570659C Signal distributor with electric surge protection |
| 12/15/2009 | US7633736 Circuit interrupter including nonvolatile memory storing cause-of-trip information |
| 12/15/2009 | US7633735 ESD protection device |
| 12/15/2009 | US7633734 AC melt to bushing current detector |
| 12/15/2009 | US7633731 High-voltage dual-polarity I/O p-well pump ESD protection circuit |
| 12/15/2009 | US7633729 Alternating current series arc fault detection method |
| 12/15/2009 | US7633728 Arc fault circuit interrupter and method of parallel arc fault detection |
| 12/15/2009 | US7633727 Arc fault circuit interrupter and series arc fault detection method using plural high frequency bands |
| 12/15/2009 | US7633399 Configurable arc fault or ground fault circuit interrupter and method |
| 12/10/2009 | US20090303649 Enhanced charger over voltage protection fet |
| 12/10/2009 | US20090303646 Controlling appratus and controlling method for signal outputing circuit and video system |
| 12/10/2009 | US20090303645 Integrated circuit |
| 12/10/2009 | US20090303644 Electrostatic discharge protected device |
| 12/10/2009 | US20090303643 Surge protect circuit |
| 12/10/2009 | US20090303642 Leakage current detection and interruption circuit with improved shield |
| 12/10/2009 | DE102009004758A1 Überspannungsableiter mit mindestens einem Ableitelement Surge arrester with at least one arrester |
| 12/10/2009 | DE102008026555A1 Überspannungsschutzgerät mit thermischer Abtrennvorrichtung Surge protection device with thermal disconnect |
| 12/09/2009 | EP2130286A1 Distributed maximum power point tracking system, structure and process |
| 12/09/2009 | EP2130277A2 Method of improvement of earth-fault protection reliability and applicable wiring diagram |
| 12/09/2009 | EP2130276A1 Structure and circuit technique for uniform triggering of multifinger semiconductor devices with tunable trigger voltage |
| 12/09/2009 | CN201360221Y Phase change peak surge absorber for rectifier bridges |
| 12/09/2009 | CN201360150Y Static low-voltage reactive power automatic compensation device |
| 12/09/2009 | CN201360144Y Induced voltage suppressor |
| 12/09/2009 | CN101601191A Frequency translation module protection circuit |
| 12/09/2009 | CN101600286A HID lamp electronic ballast |
| 12/09/2009 | CN101599673A Electromotor |
| 12/09/2009 | CN101599640A Surge protector for indicating fault status reliably |
| 12/09/2009 | CN101599639A Single-phase power supply low-pass lightning arrester |
| 12/09/2009 | CN101599634A Method for discriminating excitation inrush current and failure current of transformer based on S-transformation |
| 12/09/2009 | CN101599487A Electrostatic discharge testing circuit and correlated method thereof |
| 12/09/2009 | CN101599345A Dry-type hollow current-limiting capacity regulating reactor |
| 12/09/2009 | CN101598933A Automatic tuning communication control method for digital arc suppression coil |
| 12/09/2009 | CN101598761A Fault line selection method for small electric current grounding system of distribution network |
| 12/09/2009 | CN100568659C Electrostatic discharge protecting circuit |
| 12/09/2009 | CN100568658C Device and systems for electrostatic discharge supression |
| 12/08/2009 | US7630188 Conditioner with coplanar conductors |
| 12/08/2009 | US7630187 High-voltage pulse protection device and video apparatus deployment thereof |
| 12/08/2009 | US7630186 Current protection apparatus and method |
| 12/08/2009 | US7630185 Electronic circuit breaker |
| 12/08/2009 | US7630179 Protective link for superconducting coil |
| 12/08/2009 | US7630178 Semiconductor integrated circuit |
| 12/08/2009 | US7628879 Conductive scrim embedded structural adhesive films |
| 12/03/2009 | WO2009145249A1 Discharge noise absorbing element, discharge gap-type arrester utilizing the element, discharge bouncing wave avoiding circuit, and noise avoiding box |
| 12/03/2009 | WO2009144872A1 Rush current preventing circuit |
| 12/03/2009 | WO2009144216A1 Surge arrester comprising an integrated protection device |
| 12/03/2009 | WO2009143967A1 Protection system for voltage transformers |
| 12/03/2009 | US20090296300 SCR circuit for protecting customer end of telephone line |
| 12/03/2009 | US20090296299 Overcurrent controller for a remotely controlled ceiling fan provided with lamps and lanterns |
| 12/03/2009 | US20090296298 Active Current Surge Limiters |
| 12/03/2009 | US20090296297 Overvoltage protection device |
| 12/03/2009 | US20090296296 Surge protection arrangement |
| 12/03/2009 | US20090296295 Power-rail ESD protection circuit with ultra low gate leakage |
| 12/03/2009 | US20090296294 Electro-static discharge protection device with low temperature co-fire ceramic and manufacturing method thereof |
| 12/03/2009 | US20090296293 Esd protection circuit for differential i/o pair |
| 12/03/2009 | US20090296292 Electrostatic Discharge Protection Circuit Employing a Micro Electro-Mechanical Systems (MEMS) Structure |
| 12/03/2009 | US20090296291 Power semiconductor arrangement including conditional active clamping |
| 12/03/2009 | US20090296290 Lenz route |
| 12/03/2009 | US20090296289 High Resistance Ground Protection Employing AC Drive Characteristics |
| 12/03/2009 | US20090294855 Electrostatic Discharge Protection Device |
| 12/03/2009 | DE102009004318A1 Überspannungsableiter mit integrierter Schutzvorrichtung Surge arrester with integrated protection device |
| 12/03/2009 | DE102008025986A1 Overvoltage protection device for voltage-sensitive power semiconductor component e.g. diode, has monitoring circuit comprising limiting device for limiting charge carriers flowing in monitoring circuit to predetermined maximum value |
| 12/03/2009 | DE102008025936A1 Überspannungsschutzgerät Surge protection device |
| 12/03/2009 | DE102008025501A1 Overvoltage protection circuit for protecting signal line from overvoltage during lightning strike, has set of overvoltage arresters connected to another arrester set, which provides current when voltage exceeds threshold value |
| 12/03/2009 | DE102008024348A1 Pulse-type ground current reducing method for electrical large-scale device at single-phase or multi-phase system, involves either supporting or causing non-production of ground current according to requirements of compensation switch |
| 12/02/2009 | EP2128951A1 Electronic active earthing system for use in high-voltage distribution networks |
| 12/02/2009 | EP2128950A1 Protection system for voltage transformers |
| 12/02/2009 | EP2128941A1 Excess voltage protection device |
| 12/02/2009 | CN101595617A Device for protecting data lines against overvoltages |
| 12/02/2009 | CN101595616A Electric/electronic circuit system with conductive glass member |
| 12/02/2009 | CN101594047A Simple power-on surge suppression circuit |
| 12/02/2009 | CN101594046A Inrush current limiter |
| 12/02/2009 | CN101593974A Compound overvoltage protection device and application thereof in semiconductor convertor equipment |
| 12/02/2009 | CN101593973A Static discharging protection circuit |