Patents
Patents for H01H 47 - Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current (7,312)
04/1995
04/27/1995DE4336328A1 Method and circuit arrangement for driving a bistable relay
04/26/1995EP0650177A1 Method of driving parallel arranged relays
04/26/1995EP0650002A1 Self-holding type solenoid valves
04/26/1995CN2195794Y AC contactor
04/25/1995US5410187 Output circuit for controlling a relay which has capability for operating with wide range of input voltages
04/19/1995CA2130219A1 Low-power relay operating circuit
04/11/1995US5406442 Solid state relay
04/11/1995US5406440 Soft-closure electrical contactor
04/11/1995US5406439 Control circuit controlling switching
04/05/1995EP0646077A1 Circuitry for monitoring an inductive circuit.
04/04/1995US5404303 Solenoid current driver circuit
03/1995
03/28/1995US5402303 Remotely-powdered and remotely-addressed zero-standby-current energy-accumulating high-power solenoid drivers, particularly for systems that are micropowered
03/28/1995US5402302 Supply circuit for electromagnetic relays
03/22/1995EP0605496A4 Area light switch.
03/22/1995CN1027996C Magnetic synchronous conversion electromagnetic apparatus
03/15/1995CN2192077Y AC contact shakeproof energy-saving apparatus
03/07/1995CA1334679C Light-sensitive switch structure and method with inverse off/on ratio
02/1995
02/28/1995US5394291 Relay energizing circuit
02/28/1995US5394018 Microprocessor based electrical apparatrus with false AC input rejection
02/15/1995CN2189782Y Life-prolonging elctricity-saving device for AC relay equipment
02/08/1995EP0637401A1 Two relay switching circuit for fluorescent lighting controller.
02/02/1995DE4325578A1 Switching device for an electromagnet
01/1995
01/25/1995CN2188241Y Silent power-saving ac contactor
01/19/1995WO1995002254A1 Improvements in and relating to electromechanical relays
01/19/1995CA2141848A1 Improvements in and relating to electromechanical relays
01/11/1995CN2187332Y AC contactor
01/10/1995US5381297 System and method for operating high speed solenoid actuated devices
01/10/1995US5381121 Remote controlled overload protective switch
01/05/1995WO1995000966A1 Switching contactor driving circuitry
01/05/1995WO1995000960A1 A system and method for operating high speed solenoid actuated devices
01/04/1995CN2186954Y Electromagnetic drag mechanism
12/1994
12/22/1994WO1994029557A1 Garage-door drive unit with safety monitoring system
12/20/1994US5375027 Fail safe cartridge fire unit
12/20/1994US5374922 Device for determining the state of an apparatus, and in particular the open or closed state of an electrical apparatus by means of auxiliary contacts
12/20/1994US5374793 Acceleration sensor
12/20/1994US5373705 Defrost cycle controller
12/15/1994DE4335415C1 Circuit arrangement and method for driving a load, preferably a relay device, having a two-wire switch
12/14/1994CN2185470Y Sound-and heat-removing electricity saver
12/13/1994US5373411 Remote control circuit breaker system
12/07/1994EP0627753A1 Operation control device for a contactor
12/06/1994US5369962 Refrigeration system configuration
11/1994
11/24/1994DE4315991A1 Emergency off current loop
11/23/1994CN2183611Y High-reliability energy-saving noise-removing operator
11/17/1994EP0624892A1 Remote control interrupter equipped with a delayed switching system
11/17/1994EP0624750A1 Device for branching and logically combining a plurality of pairs of switching elements
11/16/1994CN1026638C Magnetic synchronous change-over electricity-saving coil
11/15/1994US5363669 Defrost cycle controller
11/15/1994US5363667 Refrigerator control circuit with relay operation checking
11/09/1994EP0623943A1 Relay terminal array with malfunction detection and transmission functions
11/09/1994CN2182451Y Alternating current control box adapted for DW15 breaker
11/09/1994CN2182450Y Direct-current exciter
11/03/1994DE4314009A1 Circuit
11/02/1994EP0622536A2 Electronic fuel injector driver circuit
11/02/1994CN2181748Y Micro-watt consumption AC contactor
10/1994
10/31/1994CA2122217A1 Electronic fuel injector driver circuit
10/26/1994EP0621659A1 Hysteresis in a circuit for sensing presence of a plug
10/26/1994CN2181082Y Energy-saving and phase-loss ac contactor
10/26/1994CN2181081Y High-effect energy-saving ac contactor
10/26/1994CN2181080Y Electricity-saving button
10/26/1994CN2181079Y Reverseble electronic delay, link-locking device for contactor
10/25/1994US5359486 Method and circuit for synchronization of relay operation
10/25/1994US5359309 Multiple pole solenoid using simultaneously energized AC and DC coils
10/20/1994DE4337665C1 Contactor safety combination
10/20/1994DE4332995C1 Method for driving relays which are arranged in parallel
10/18/1994CA2032340C Acceleration detecting system
10/05/1994CN2178937Y Magnetic-synchro changing electromagnetic device
09/1994
09/29/1994DE4410819A1 Circuit arrangement for operation of a relay
09/28/1994EP0617443A1 Method and circuit for synchronization of relay operation
09/28/1994CN1092901A DC electromagnetic unit
09/22/1994DE4409010A1 Electromagnetic switching device
09/21/1994EP0616346A1 Current detection unit and relay terminal array
09/21/1994EP0616272A1 Circuit for suppressing the bouncing effects during closing and opening of a contact in a watch
09/14/1994EP0615267A1 Circuit for testing switch- or relay contacts
09/14/1994CN2177287Y Delay switch
09/13/1994US5347421 Law energy solenoid energizer
09/13/1994US5347420 Electrically operated control device and system for an appliance and method of operating the same
09/07/1994EP0614206A1 Feedback of relay status
09/06/1994US5345360 Control circuit controlling switching of a latching relay
09/01/1994WO1994019816A1 Two relay switching circuit for fluorescent lighting controller
08/1994
08/30/1994US5343351 Starter motor protection circuit with relay protection
08/30/1994US5343193 Matrix switcher apparatus
08/26/1994CA2116405A1 Electronic interlock for electromagnetic contactor
08/23/1994US5341282 Circuit for detecting short-circuiting of inductive load drive devices
08/17/1994CN2174777Y Automatic detecting controlling device for main output used at day and night
08/17/1994CN1025702C Small universal electromagnet operated at wide voltage range
08/16/1994CA2005183C Relay driving circuit for a latch-in relay
08/10/1994CN2174004Y Silencing, lightning guard, overvoltage and electric leakage protector
08/04/1994WO1994017544A1 Latching relay control circuit
08/03/1994EP0608477A2 Semiconductor relay
08/03/1994CN2173455Y Explosion-proof magnetic force stator
07/1994
07/28/1994DE4311871C1 Load-switching relay circuit esp. for hospital-ward calling lamps
07/27/1994CN2172910Y Power-saving device for AC contactor
07/13/1994EP0605496A1 Integrity ensuring device and method, in particular for a light barrier
07/13/1994EP0437447B1 A switching circuit
07/13/1994EP0293420B1 Power supply associated with ac line relay switch
07/07/1994WO1994015093A1 Actuating relay for starting devices
07/07/1994DE4244121A1 Circuit arrangement with electromagnetic relay for use in vehicles
07/06/1994CN2171155Y Electricity-saving switch for integrated circuit
06/1994
06/28/1994US5325315 Process for auto calibration of a microprocessor based overcurrent protective device and apparatus
06/22/1994EP0602452A1 Security device with microprocessor
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