Patents
Patents for H02H 11 - Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result (2,416)
07/1999
07/07/1999EP0927981A2 Arrangement for data and/or energy transmission with separation unit
07/01/1999DE19756825A1 Polarity reversal protection circuit e.g. for motor-vehicle microprocessor-equipped control device
06/1999
06/23/1999EP0923801A1 Phase monitor
06/22/1999CA2002908C Universal output circuit
06/16/1999EP0875090B1 Connector, in particular a plug-in connector for tt and tn networks
06/10/1999WO1999028683A1 Air conditioner
05/1999
05/26/1999EP0918389A2 Low loss reverse battery protection
05/12/1999CN1043392C Earth fault circuit breaker
05/06/1999DE19842438A1 Driver unit for controlling electric motor, for vehicle power steering device
04/1999
04/22/1999WO1999019958A1 Protective circuit with n-channel mos fet for an electronic circuit
04/15/1999DE19745074A1 Electronic circuit protection device
04/13/1999US5894392 Power distribution unit with individual GFI modules and a line supervisory circuit
04/08/1999DE19743632A1 Method to detect faulty power semiconductor switch in power converter circuit
03/1999
03/03/1999CN1209913A Connector for consumer networks
02/1999
02/17/1999CN1208508A Connection in particular a plug-in connector for TT and TN networks
02/16/1999US5872708 Automatic polarity conversion circuit
02/11/1999WO1998047324A3 Safety-enhanced transformer circuit
02/11/1999DE19733707A1 Protection circuit e.g. for polarity reversal in motor vehicle low voltage applications
02/04/1999WO1999005780A1 Control circuit for a dc motor
02/04/1999WO1999005763A1 Control circuit for a direct current motor
02/04/1999DE19733533A1 Monitoring circuit for control of washing machine motor
02/04/1999DE19730338A1 Polarity reversal protection circuit e.g. for automobile and industrial equipment
02/03/1999EP0895263A2 Arrangement for switching on electric loads one at a time
01/1999
01/28/1999DE19732098A1 Steuerschaltung für einen Gleichstrommotor Control circuit for a DC motor
01/28/1999DE19732094A1 Steuerschaltung für einen Gleichstrommotor Control circuit for a DC motor
01/21/1999DE19727940A1 Equalising circuit for control of power consumer appliances coupled to DC supply
01/12/1999US5859756 Automatic power line monitor and controller system
01/12/1999CA2112517C Safety electrical assembly for electric power equipment
12/1998
12/08/1998US5847911 Self-protecting switch apparatus for controlling a heat element of a vehicle seat and a method for providing the apparatus
12/08/1998US5847909 Safety-enhanced transformer circuit
12/08/1998US5847525 Control device for asynchronous motor of shutter or roller blind
12/03/1998DE19722017A1 Electrical circuit with earthed electrical component and control apparatus, e.g for vehicle ABS system
12/01/1998US5844759 Electrical shock protection apparatus for an electrical appliance
11/1998
11/26/1998DE19719919A1 Anordnung zum Schutz von elektrischen Einrichtungen An arrangement for protection of electrical equipment
11/24/1998US5841238 Dimmer protection for compact fluorescent
11/19/1998WO1998052268A1 Circuit for the protection of electrical devices
11/18/1998EP0878982A2 High voltage discharge lamp device
11/11/1998EP0876699A2 Current limiting circuit
11/04/1998EP0875090A1 Connector, in particular a plug-in connector for tt and tn networks
11/04/1998EP0875088A2 Connector for consumer networks
10/1998
10/28/1998EP0874438A2 Electronic circuit with reverse battery protection
10/28/1998CN1040472C Ground detecting method for inverter device
10/27/1998US5828309 Power source miswiring detection apparatus
10/22/1998WO1998047324A2 Safety-enhanced transformer circuit
10/13/1998US5821601 Bipolar semiconductor integrated circuit with a protection circuit
10/08/1998WO1998044610A1 Operating device for carrying out switching operations in a switching system
09/1998
09/17/1998WO1998040944A1 Power switch with a circuit for providing auxiliary energy
09/09/1998EP0862808A1 An installation for power transmission by means of high-voltage direct current, comprising device for detection of a permanent ground fault
09/08/1998US5805396 Protection circuit of drive system for motor
09/01/1998US5801461 Device for monitoring the operation safety of power switches
07/1998
07/30/1998WO1998033255A1 Reverse battery protecting device for the on-board electric network of a vehicle
07/23/1998DE19702116A1 Schutzvorrichtung gegen Falschpolung im elektrischen Bordnetz eines Fahrzeuges Guard against wrong in the electrical system of a vehicle
07/22/1998EP0854555A2 Integrated supply protection
07/21/1998US5783999 Audio warning device for use with a line current protection circuit in a PCMCIA-architecture modem card
07/21/1998US5782098 Freezer control unit
07/14/1998US5781390 Integrated supply protection
06/1998
06/09/1998US5764465 Electronic circuit arrangement having polarity reversal protection
06/04/1998WO1998024161A1 Electronic shock protection in codsets and electrical distribution systems
06/02/1998US5760499 Safety device for socket which is connected to electrical power supply
05/1998
05/26/1998US5757600 Reverse battery protection circuit
05/19/1998US5754114 Safety ground detector
04/1998
04/29/1998EP0838103A1 Electrical fault interrupt with frayed cord protection
04/02/1998WO1998013922A1 Circuit for protection of electronic circuitry against input voltage reversal
04/02/1998DE19640272A1 Polarity protection circuit for IC
04/01/1998EP0833435A1 Control device for asynchronous motor driving a blind or a roller shutter
03/1998
03/24/1998US5731942 To protect of electrical equipment operating on single phase power supplies
03/12/1998WO1998010501A1 Phase monitor
03/12/1998DE19708019A1 Bipolar integrated semiconductor circuit with cross-polarity connection protection
03/11/1998EP0828406A1 Device for limiting and distributing the electric power used by a cooking hob
03/04/1998EP0827249A2 Safety ground detector
03/03/1998US5723914 Device for preventing an electrical equipment from re-powering after recovery of service interruption
02/1998
02/24/1998US5721661 Power filter
02/17/1998US5719734 Electronic apparatus
02/10/1998US5716725 Method apparatus for indicating improper coupling of a power source to an electronic device
02/05/1998WO1998005111A1 Switching installation
02/05/1998DE19630614A1 Schaltanlage Switchgear
02/03/1998US5715128 Power supply protection circuit capable of preventing a failure in a mobile satellite communication apparatus resulting from erroneous connection
01/1998
01/15/1998WO1998001928A1 Electromechanical switching device
01/13/1998US5708551 Electrical distribution device with preventive checking of the state of the load, particularly for civil and industrial users
12/1997
12/30/1997CA2023369C Image forming apparatus utilizing an ac voltage control circuit
12/09/1997US5696660 Line current protection circuit for use with a PCMCIA-architecture modem card
12/04/1997WO1997045905A1 An installation for power transmission by means of high-voltage direct current, comprising device for detection of a permanent ground fault
11/1997
11/12/1997EP0806827A1 Reverse battery protection circuit
11/12/1997EP0806825A2 Differential current protection
10/1997
10/09/1997DE19613249A1 Phase sequence alternation circuit for three=phase induction motor e.g. for compressor or welding equipment
10/02/1997WO1997026695A3 Connector for consumer networks
09/1997
09/24/1997CN1160180A Freezer control unit
09/04/1997WO1997027657A3 Current limiting circuit
08/1997
08/26/1997US5661623 Ground fault circuit interrupter plug
08/26/1997US5661420 Mounting configuration for monolithic integrated circuit
08/20/1997CN1157545A Circuit arrangement
08/19/1997US5659243 High isolation, power-on control circuit for aircraft external power connection
08/14/1997DE19604736A1 Power supply for bus-connected controllers and loads in motor vehicle
08/14/1997DE19603411A1 Electrical switching system for LV equipment with short circuit protection e.g. for contactors, protection relays and circuit breakers
07/1997
07/31/1997WO1997027657A2 Current limiting circuit
07/24/1997WO1997026698A1 Connector, in particular a plug-in connector for tt and tn networks
07/24/1997WO1997026695A2 Connector for consumer networks
07/24/1997DE19601884A1 Verbindungseinrichtung, insbesondere Steckvorrichtung für TT- und TN-Netze Connecting means, in particular plug-in device for TT and TN systems
07/24/1997DE19601878A1 Verbindungsanordnung für Verbrauchernetze A joint structure for consumer networks
07/24/1997CA2243865A1 Connecting device in particular a plug-in device for tt and tn systems
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