| Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232) |
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| 04/30/2013 | US8432649 Abnormal current detecting circuit for circuit breaker |
| 04/26/2013 | CA2792591A1 Method and system for transient voltage suppressors |
| 04/25/2013 | US20130100720 Power converter systems and methods of operating a power converter system |
| 04/25/2013 | US20130100571 Fully isolated coaxial surge protector |
| 04/25/2013 | US20130100567 Power distribution apparatus for separate electrical over current and short circuit protection |
| 04/25/2013 | US20130100562 Electrostatic discharge clamp with controlled hysteresis including selectable turn on and turn off threshold voltages |
| 04/25/2013 | US20130100561 Semiconductor device and method of forming same for esd protection |
| 04/25/2013 | US20130100558 Method for cutting off an electric arc, method and device for protecting an installation against voltage surges |
| 04/24/2013 | CN202906805U Special transformer compensating soft start device for large power cage type motor |
| 04/24/2013 | CN202906804U Self-excited compensation soft start device for large power cage type motor |
| 04/24/2013 | CN202906461U Interface protective circuit |
| 04/24/2013 | CN202906460U A circuit used for preventing mis-protection of a PWM chip |
| 04/24/2013 | CN202906459U Blocking type overvoltage absorber |
| 04/24/2013 | CN202906458U Thunder and lightning proof distribution box |
| 04/24/2013 | CN202906457U Residual voltage discharge circuit |
| 04/24/2013 | CN202906456U Two-port lightning protection device for highway display screen, information board |
| 04/24/2013 | CN202906455U A full electronic lightning protection surge protector |
| 04/24/2013 | CN202906454U Transformer iron core and clamp multi-point grounding automatic current limiting safety device |
| 04/24/2013 | CN202906453U Capacitor zero-crossing switching switch device |
| 04/24/2013 | CN202906438U Novel leakage protective circuit |
| 04/24/2013 | CN202906207U DC lightning protection system |
| 04/24/2013 | CN202905642U Lightning protection leakage circuit breaker |
| 04/24/2013 | CN103066905A Method of eliminating generator neutral point circuit resonance in gas turbine power plant starting and device of eliminating generator neutral point circuit resonance in gas turbine power plant starting |
| 04/24/2013 | CN103066584A Low-capacitance large-surge protective circuit |
| 04/24/2013 | CN103066583A Device and method of fast discharging of high-voltage direct-current bus |
| 04/24/2013 | CN103066582A Overvoltage protection method and overvoltage protection devices of modular multi-level converters |
| 04/24/2013 | CN103066581A Medical air supply system and electrostatic protection circuit of communication circuit thereof |
| 04/24/2013 | CN103066580A Fault protection applied to wind power plant and energy stabilization circuit |
| 04/24/2013 | CN103063935A Static detecting device |
| 04/23/2013 | US8427802 Input overvoltage protection circuit with soft-start function |
| 04/23/2013 | US8427801 Rectifier circuit |
| 04/23/2013 | US8427800 Smart link coupled to power line |
| 04/23/2013 | US8427799 ESD clamp for multi-bonded pins |
| 04/23/2013 | US8427798 Semiconductor integrated circuit device |
| 04/23/2013 | US8427797 ESD networks for solder bump integrated circuits |
| 04/23/2013 | US8427796 High voltage, high frequency ESD protection circuit for RF ICs |
| 04/23/2013 | US8427795 Pad interface circuit and method of improving reliability of the pad interface circuit |
| 04/23/2013 | US8427167 Architecture and method to determine leakage impedance and leakage voltage node |
| 04/23/2013 | CA2599079C Solid state power controller with lightning protection |
| 04/18/2013 | WO2012038150A3 Method for adjusting a dc intermediate circuit voltage |
| 04/18/2013 | WO2011038969A3 Free-wheeling circuit |
| 04/18/2013 | US20130094116 Conductive composite material with positive temperature coefficient of resistance and overcurrent protection component |
| 04/18/2013 | US20130094111 Electrical surge protector and method of providing the same |
| 04/18/2013 | US20130093349 Driving circuit and lamps |
| 04/18/2013 | DE112011101606T5 Elektronische Energiekonditionierschaltung Electronic power conditioning |
| 04/18/2013 | DE102011115722A1 Over-voltage protection device for protecting low-voltage electrical installation, has counter-contact elements with contact elements in line deposits, between which switches are arranged and are opened when top unit is fitted on base |
| 04/18/2013 | DE10163008C5 Resistive Strombegrenzungseinrichtung mit mindestens einer Leiterbahn mit supraleitendem und normalleitendem Material Resistive current-limiting device having at least one conductor with superconducting and normally conducting material |
| 04/17/2013 | EP2581919A2 A superconducting fault current limiter |
| 04/17/2013 | CN202888955U Lightning protection and double-alternating-current power switching device |
| 04/17/2013 | CN202888829U Strip-line antenna-feed lightning protection device |
| 04/17/2013 | CN202888828U Lightning protection instrument for sensor data collecting and processing system |
| 04/17/2013 | CN202888827U Overvoltage protection monitor |
| 04/17/2013 | CN202888826U Two-port anti-interference surge protection device |
| 04/17/2013 | CN202888825U Novel surge protection device (SPD) |
| 04/17/2013 | CN202888824U Lightning protection device |
| 04/17/2013 | CN202888823U A novel signal lightning protection device |
| 04/17/2013 | CN202888822U A novel control signal lightning protection device |
| 04/17/2013 | CN202888821U A network signal surge protective device |
| 04/17/2013 | CN202888820U Connection circuit utilizing capacitor of reactive power compensator to absorb overvoltage of electrical network |
| 04/17/2013 | CN202888819U Circuit compensation controller |
| 04/17/2013 | CN202888818U Novel surge protection device (SPD) |
| 04/17/2013 | CN202888817U Novel surge protection device (SPD) |
| 04/17/2013 | CN202888816U Slow startup circuit for large capacitive load |
| 04/17/2013 | CN202888815U Lightning protection device used for cabinet |
| 04/17/2013 | CN202888187U Semiconductor discharge tube |
| 04/17/2013 | CN202888186U Semiconductor discharge tube with plastic package pieces |
| 04/17/2013 | CN103052197A LED (Light Emitting Diode) street lamp device loaded with lightning arrester |
| 04/17/2013 | CN103051369A Wireless ad hoc network-based wireless repeater |
| 04/17/2013 | CN103051013A Transferring connection device in charging process of intelligent vehicle-mounted terminal |
| 04/17/2013 | CN103051007A Charger of intelligent vehicle-mounted terminal |
| 04/17/2013 | CN103050963A Arc extinguish device capable of avoiding direct grounding arc extinguish and overvoltage resetting, and working method thereof |
| 04/17/2013 | CN103050962A Grounding transfer current detection compensation device and working method thereof |
| 04/17/2013 | CN103050961A Device for processing instantaneous single-phase grounding fault |
| 04/17/2013 | CN103050960A Pulse selection coil compensating and failure processing device and working method thereof |
| 04/17/2013 | CN103050959A Surge protection circuit for signal circuit |
| 04/17/2013 | CN103050958A Piezoresistor type surge protection device |
| 04/17/2013 | CN103050957A Multifunctional combined secondary cable lightening protection and equipotential protection method and device |
| 04/17/2013 | CN103050956A Composite monitoring voltage limiting device |
| 04/17/2013 | CN103050955A Over-voltage protection method for modularized multi-level voltage source commutation valve |
| 04/17/2013 | CN103050954A POE (Power over Ethernet) lightning arrester with network signal extension function |
| 04/17/2013 | CN103050953A Same-time-sequence multi-pulse lightning protection box |
| 04/17/2013 | CN103050952A Bus type large-capacity overvoltage protection device |
| 04/17/2013 | CN103050951A Electronic protection device |
| 04/17/2013 | CN103050943A Generator injection-type stator ground protection method applicable to single-point and dual-point grounding systems |
| 04/17/2013 | CN101950958B Capacitance-adjusting type arc suppression coil complete device and operation mod of same |
| 04/17/2013 | CN101909396B Electronic ballast and over-voltage clamping protection method thereof |
| 04/16/2013 | US8422189 Serially connected surge suppression optimization device |
| 04/16/2013 | US8422184 Overcurrent relay |
| 04/16/2013 | US8422181 Electrostatic discharge protection device of an electric apparatus |
| 04/16/2013 | US8422180 High-voltage-tolerant ESD clamp circuit with low leakage current fabricated by low-voltage CMOS process |
| 04/16/2013 | US8422179 Inrush current control |
| 04/14/2013 | CA2755230A1 System and method to monitor and control remote sensors and equipment |
| 04/11/2013 | WO2013052724A1 Input/output power and signal transfer isolator device |
| 04/11/2013 | WO2013052054A1 System and method for providing bi-directional power flow and power conditioning |
| 04/11/2013 | WO2013018072A3 Emulator device for emulating a variable impedance and a system for controlling and regulating the state of a neutral conductor in a polyphase system comprising such a device |
| 04/11/2013 | US20130090243 Superconducting fault current limiter |
| 04/11/2013 | US20130090010 Surge Protector Components Having a Plurality of Spark Gap Members Between a Central Conductor and an Outer Housing |
| 04/11/2013 | US20130088803 Power supply apparatus |
| 04/11/2013 | US20130088801 Electrostatic discharge protection apparatus |
| 04/11/2013 | US20130088800 Electrostatic discharge (esd) protection device |