| Patents for H02H 7 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions (32,726) |
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| 01/14/2004 | EP0976189B1 Method for determining the location of a partial discharge |
| 01/14/2004 | CN1467988A Power supply circuit for video display device |
| 01/14/2004 | CN1467908A Explosion suppression soft starter for mining |
| 01/14/2004 | CN1467894A Switch power supply under-voltage protecting circuit for preventing starting by mistake and under-voltage protecting method |
| 01/13/2004 | US6678601 Motor speed-based anti-pinch control apparatus and method with rough road condition detection and compensation |
| 01/13/2004 | US6678175 Utilizing charge stored in a snubber capacitator in a switching circuit |
| 01/13/2004 | US6678174 Power converting apparatus, control method therefor, and power generation system |
| 01/13/2004 | US6678134 Digital protective relay system |
| 01/13/2004 | US6678129 Protection circuit for a switched mode power supply |
| 01/13/2004 | US6677739 High-reliability, low-cost, pulse-width-modulated vehicular alternator voltage regulator with short-circuit protection and low inserted electrical noise |
| 01/13/2004 | US6677738 Overcurrent sensing using high side switch device in switching power converters |
| 01/13/2004 | US6677720 Control system for vehicle seat |
| 01/13/2004 | US6676400 Control unit of a motor for an injection molding machine |
| 01/13/2004 | US6675912 Dual-mode non-isolated corded system for transportable cordless power tools |
| 01/08/2004 | WO2004004089A1 Fault sensing circuit for simple motor control |
| 01/08/2004 | WO2003073571A3 External clock to obtain multiple synchronized computer |
| 01/08/2004 | US20040004794 Relaying method for protecting a transformer using a difference of current |
| 01/08/2004 | DE19539925B4 Vorrichtung zur Steuerung der Öffnung und Schließung eines Fensters Device for controlling the opening and closing of a window |
| 01/08/2004 | DE10324592A1 Verfahren und Vorrichtung zur Erfassung eines Einklemmzustands bei einem Öffnungs/Schließelement Method and apparatus for detecting a Einklemmzustands with a opening / closing member |
| 01/07/2004 | EP1051674B1 Anti latch-up protection method and apparatus therefor |
| 01/07/2004 | CN1466255A Output overcurrent and short circuit protector for high power contravariant equipment |
| 01/07/2004 | CN1134092C Power supply line and equipment overheat detecting protector |
| 01/06/2004 | US6675108 Line fault protection unit for an electrical power system |
| 01/06/2004 | US6674965 Electric power control device for camera |
| 01/02/2004 | EP1376810A1 Fault sensing circuit for simple motor control |
| 01/02/2004 | EP1374361A1 Jamming protection device for moving member |
| 12/31/2003 | WO2004001431A1 Fault location using measurements of current and voltage from one end of a line |
| 12/31/2003 | WO2004001169A1 Barrier movement control for mid-travel barrier movement start |
| 12/31/2003 | WO2003073214A3 Method for communicating information bundled in digital message packets |
| 12/31/2003 | CN2596644Y IGBT over current protective circuit |
| 12/31/2003 | CN2596643Y Motor electronic protector including air breaker |
| 12/31/2003 | CN2596642Y Motor control protector |
| 12/31/2003 | CN2596641Y Silicon chain break circuit protector |
| 12/31/2003 | CN1464609A Cold-water waterless automatic overload protecting method and apparatus for generator stator |
| 12/31/2003 | CN1463848A Ink-jet printer ink-ejecting unit open circuit and short circuit testing process and apparatus |
| 12/30/2003 | US6671150 Circuit breaker for detecting an excessive voltage and tripping responsive thereto |
| 12/30/2003 | US6670815 Electric device as well as process for its operation |
| 12/30/2003 | US6670679 Semiconductor device having an ESD protective circuit |
| 12/25/2003 | US20030235061 Power supply circuit for video display device |
| 12/25/2003 | US20030234634 Method and system for diagnosing an arm-short of a bi-directional DC/DC converter |
| 12/25/2003 | US20030234628 Barrier movement control for mid-travel barrier movement start |
| 12/25/2003 | US20030234543 Opening and closing control device for opening and closing member of vehicle |
| 12/24/2003 | WO2003073580A3 Processing system for a power distribution system |
| 12/24/2003 | CN2595043Y Overvoltage protector by paralleled on apparatus |
| 12/24/2003 | CN2595042Y Thunder and lightning protector for electrical power supply |
| 12/24/2003 | CN2595041Y Intelligent protector of motor |
| 12/24/2003 | CN2595040Y Digital electronic protector of motor |
| 12/24/2003 | CN2595039Y Two-stage current-limiting circuit of DC brushless fan motor |
| 12/24/2003 | CN1132299C 具有电流和电压限制的开关模式电源 With a current and voltage limit switch mode power supply |
| 12/24/2003 | CN1132283C 提高跳闸强度的过流保护电路 Overcurrent protection circuit to improve the strength of the trip |
| 12/24/2003 | CN1131971C Electric drive device |
| 12/23/2003 | US6668232 Arrangements to detect and respond to disturbances in electrical power systems |
| 12/23/2003 | US6667590 Power window apparatus with function of foreign object detection |
| 12/18/2003 | WO2003077322A3 H-bridge with single lead frame |
| 12/18/2003 | US20030231447 Circuit breaker lockout |
| 12/18/2003 | US20030231442 Method to protect electronics from load dump |
| 12/18/2003 | US20030231440 Circuit protection system |
| 12/18/2003 | US20030231029 Diagnostic device for electric mechanism drive circuits |
| 12/18/2003 | US20030230995 Motor control device |
| 12/18/2003 | DE20023348U1 Method for operating electric motor drive for lift and lift employing this method |
| 12/17/2003 | EP1372257A2 Diagnostic device for electric mechanism drive circuits |
| 12/17/2003 | EP1372237A1 Electrical device comprising two supports and terminal connected to a series capacitor and a voltage limiter |
| 12/17/2003 | CN2593438Y Automatic safety protection apparatus of AC high voltage load switch |
| 12/17/2003 | CN2593437Y Power source protection apparatus |
| 12/16/2003 | US6664768 System and method for controlling load dump voltage of a permanent magnet (PM) alternator |
| 12/16/2003 | US6664766 Supercapacitor balancing method and system |
| 12/16/2003 | CA2273200C Fault tolerant power supply circuit |
| 12/11/2003 | WO2003103349A2 Motor speed-based anti-pinch control apparatus and method |
| 12/11/2003 | WO2003102991A1 Overvoltage protection device |
| 12/11/2003 | WO2003102339A2 Motor speed-based anti-pinch control apparatus and method with endzone ramp detection and compensation |
| 12/11/2003 | WO2003102338A2 Motor speed-based anti-pinch control apparatus and method with rough road condition detection and compensation |
| 12/11/2003 | US20030229423 Method for power distribution system components identification, characterization and rating |
| 12/11/2003 | US20030228503 Fuel cell system and method for voltage monitoring for a fuel cell system |
| 12/11/2003 | US20030227730 Inverted circuit overcurrent protection device and hybrid integrated circuit device with the same incorporated |
| 12/10/2003 | EP1369973A1 Overload current protection device using magnetic impedance element |
| 12/10/2003 | CN2591862Y Starter of electric machine |
| 12/10/2003 | CN2591834Y Automatic short circuit gap apparatus of transformer central point |
| 12/10/2003 | CN2591833Y Three phase star type connection motor defect phase protector |
| 12/10/2003 | CN2591832Y Protection circuit of motor |
| 12/10/2003 | CN2591831Y Three phase separate winding starting motor protector |
| 12/10/2003 | CN2591830Y Intelligent observing & controlling protector for low voltage distributing system |
| 12/10/2003 | CN2591829Y Full-automatic protector for motor |
| 12/10/2003 | CN2591828Y Dry type transformer thermal protector |
| 12/10/2003 | CN1130533C Methods and apparatus for detecting surge in centrifugal compressors |
| 12/09/2003 | US6662075 Load-adaptive control system, in particular for transport devices and used in aircraft |
| 12/09/2003 | US6661681 Power converter apparatus with a circuit for preventing destruction of a power device |
| 12/09/2003 | US6661680 Higher harmonic suppressor element and DC power supply unit using the same |
| 12/09/2003 | US6661633 Protective element |
| 12/09/2003 | US6661630 Distance relay for protection of transmission line having minimized reactance effect |
| 12/09/2003 | US6661207 Apparatus and method for protecting synchronous generators against off-nominal frequency deviation and alternating forces excitation |
| 12/09/2003 | US6661200 Rechargeable power supply system and method of protection against abnormal charging |
| 12/04/2003 | WO2003073572A3 Method and apparatus for optimized centralized critical control architecture for switchgear and power equipment |
| 12/04/2003 | US20030225497 Motor speed-based anti-pinch control apparatus and method with rough road condition detection and compensation |
| 12/04/2003 | US20030225482 Method and system for conditionally triggered system data capture |
| 12/04/2003 | US20030225481 Method and apparatus for optimizing redundant critical control systems |
| 12/04/2003 | US20030223170 High current series-pass over-voltage protection circuit |
| 12/04/2003 | US20030223169 Series pass over -voltage protection circuit having low quiescent current draw |
| 12/04/2003 | US20030223168 Series-pass over-voltage protection circuit having multiple transistors in parallel |
| 12/04/2003 | US20030223167 Distributed bus differential relay system |
| 12/04/2003 | US20030222614 Motor speed-based anti-pinch control apparatus and method |