Patents for H02H 3 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection (33,031) |
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03/04/2008 | US7340313 Monitoring device for monitoring internal signals during initialization of an electronic circuit |
03/04/2008 | US7340312 Method and system for monitoring and control of complex systems based on a programmable network processor |
03/04/2008 | US7339803 Inverter bridge short-circuit protection scheme |
03/04/2008 | US7339776 Silicon carbide diode voltage limiter |
03/04/2008 | US7339774 Automatic battery disconnect system |
03/04/2008 | US7339773 Method for driving a semiconductor switch and circuit configuration with a semiconductor switch |
03/04/2008 | US7339772 Hot-swap protection circuit |
03/04/2008 | US7339770 Electrostatic discharge protection circuit having a ring oscillator timer circuit |
02/28/2008 | WO2008024451A2 Current sensing load demand apparatus and methods |
02/28/2008 | WO2008023385A1 Electrical fault restricting system |
02/28/2008 | WO2008023221A1 Protection circuit apparatus |
02/28/2008 | WO2007133279B1 Device alert system and method |
02/28/2008 | US20080052681 Method of tracing data collection |
02/28/2008 | US20080049369 Protection of a communication line |
02/28/2008 | US20080049367 Current Sensing Load Demand Apparatus and Methods |
02/28/2008 | US20080049366 Protection circuit |
02/28/2008 | US20080049364 Leakage current monitor |
02/28/2008 | CA2667230A1 Electrical fault restricting system |
02/27/2008 | EP1356561B1 Monitoring system |
02/27/2008 | EP1110038B1 Control system for bathers |
02/27/2008 | CN201029200Y Intelligent demarcation load switch |
02/27/2008 | CN201029199Y Synthetic controller of high voltage switch |
02/27/2008 | CN201029198Y High-voltage switch high-speed sampling overflowing controller |
02/27/2008 | CN201028758Y Anti-creep water heater |
02/27/2008 | CN101132128A Electrifying and switching on control method used for creepage protector |
02/27/2008 | CN101132127A Electric network state detecting method used for creepage protector |
02/27/2008 | CN100372033C Anti-DC-bias mutual inductor magnet-core for leakage protector and manufacturing method thereof |
02/26/2008 | US7336705 Smart receiver for wireless peripherals |
02/26/2008 | US7336463 Device and method for dimming service loads |
02/26/2008 | US7336462 Alternator and starter tester protection apparatus and method |
02/26/2008 | US7336461 Method for determining the moment of closure of a circuit breaker on a high voltage line |
02/26/2008 | US7336459 Electrostatic discharge protection device and circuit thereof |
02/26/2008 | US7336458 Circuit interrupting system with independent trip and reset lockout |
02/26/2008 | US7336457 Ground fault circuit interrupter (GFCI) end-of-life (EOL) status indicator |
02/26/2008 | US7336193 Device for monitoring the leakage current of a surge arrester |
02/26/2008 | US7336060 Circuit and method for controlling a DC-DC converter by enabling the synchronous rectifier during undervoltage lockout |
02/25/2008 | CA2598890A1 Power supply start-up circuit for a trip unit and circuit interrupter including the same |
02/21/2008 | WO2008021214A2 Systems and methods for power ride-through in variable speed drives |
02/21/2008 | WO2008020798A1 Ground fault detection |
02/21/2008 | WO2004010242A3 Software tool to detect and restore damaged or lost software components |
02/21/2008 | US20080046780 Nonvolatile memory |
02/21/2008 | US20080043500 Snubber Circuit and Power Semiconductor Device Having Snubber Circuit |
02/21/2008 | US20080043396 Protective device |
02/21/2008 | US20080043395 Surge Voltage Protection Device with Improved Disconnection and Visual Indication Means |
02/21/2008 | US20080043392 Electricity limit protection switch device |
02/21/2008 | US20080043391 Timer reset circuit for overcurrent protection of switching power amplifier |
02/21/2008 | US20080043387 Relocatable power tap with ground-neutral fault detector |
02/21/2008 | US20080042710 Self-oscillating driver with soft start circuit |
02/21/2008 | US20080042630 Power supply device and projection apparatus using the same |
02/21/2008 | DE102006038104A1 Electric circuit for supplying energy to e.g. lamp of sailing boat, has switch connected with control circuit that is activated by monitoring circuit using interface, where control and monitoring circuits are coupled with supply circuit |
02/21/2008 | CA2660382A1 Ground fault detection |
02/20/2008 | EP1890369A1 Ground fault detection |
02/20/2008 | EP1890165A2 Method of directional detection of a fault in the ground connection and device for implementing same |
02/20/2008 | EP1889346A1 Thermal protection for electrical installations and fittings |
02/20/2008 | CN201025680Y A dual power switching circuit |
02/20/2008 | CN201025671Y Automatic converter for power phase sequence |
02/20/2008 | CN201025670Y Dual and/or protection outlet error tolerance mechanism |
02/20/2008 | CN201025650Y Multi-function fireproof overload protection jack |
02/20/2008 | CN201025608Y Multi-function current leakage breaker |
02/20/2008 | CN201025606Y A dual slice over-current protective part |
02/20/2008 | CN201024502Y Electric protection water-saving type toilet seat based on hip self-cleaning flushing technology |
02/20/2008 | CN201024501Y Electric protection water-saving type toilet seat based on hip self-cleaning flushing technology |
02/20/2008 | CN101127608A Wireless network adapter over current protection method and device |
02/20/2008 | CN101127439A 50Hz and 100Hz protection and setting method for high voltage DC power input system |
02/20/2008 | CN100370665C Automatic double-path electric coverting cabinet with phase-sequence monitor |
02/20/2008 | CN100370664C Arc and leakage protector |
02/20/2008 | CN100370570C Intellight earth-fault circuit breaker with reverse connection protection |
02/20/2008 | CN100370266C Diagnostic system and method for electric leak detecting device |
02/19/2008 | US7334014 Consistent time service for fault-tolerant distributed systems |
02/19/2008 | US7333920 Arc fault detector with circuit interrupter |
02/19/2008 | US7333350 Self driven synchronous rectifier shutdown circuit and method |
02/19/2008 | US7333316 AC power line protection using thyristors |
02/19/2008 | US7333310 ESD bonding pad |
02/19/2008 | US7333308 Control arrangement |
02/19/2008 | US7332899 Circuit arrangement for monitoring a voltage supply, and for reliable locking of signal levels when the voltage supply is below normal |
02/14/2008 | US20080037295 Dc-ac converter and method for protecting dc-ac converter from overcurrent |
02/14/2008 | US20080036559 Distance protection relay and method |
02/13/2008 | EP1886392A1 Method for avoiding undesired, measurement error-induced protective tripping within a protection system of an hvdc transmission system |
02/13/2008 | EP1886161A1 An apparatus and method for testing circuit breakers |
02/13/2008 | EP1886150A1 Current sensor |
02/13/2008 | CN201022237Y Over voltage protection circuit and power supply device |
02/13/2008 | CN201022151Y Self dormancy control circuit and battery system |
02/13/2008 | CN201022146Y Analog and digital residual current action protector |
02/13/2008 | CN201022145Y Over current protection system for breaker |
02/13/2008 | CN201022144Y Power protector |
02/13/2008 | CN201022069Y Breaker with miss and under voltage buckle release and electronic over current buckle release |
02/13/2008 | CN201022068Y Device for blocking electrical connection between power supply input and output end |
02/13/2008 | CN201021987Y Automatic controller of computer power supply |
02/13/2008 | CN101124706A Circuit arrangement and method for detecting the state of a circuit protection element |
02/13/2008 | CN101124705A System and method for circuit protector monitoring and management |
02/13/2008 | CN101123347A An automatic reset for current leakage protection |
02/12/2008 | US7331042 Fault-tolerant dynamic editing of GUI display and source code |
02/12/2008 | US7331003 Match circuit for performance counter |
02/12/2008 | US7330944 Method for storing data in a memory, a system, an electronic device and a memory card |
02/12/2008 | US7330343 Current-limiting protection circuit for a power supply |
02/12/2008 | US7330342 Safety tester having a high-voltage switching relay protected by an in-line electronic circuit breaker |
02/12/2008 | US7330022 Power monitoring system |
02/12/2008 | US7329969 Electronic device including interface terminal and power supply cable connected thereto |
02/12/2008 | US7329966 Vehicle-mounted electrical generator control system enabling suppression of supply voltage spikes that result from disconnecting electrical loads |
02/07/2008 | US20080034184 Fault tolerant cell array architecture |