Patents
Sitemap › H01 - Basic electric elements › H01H - Electric switches; Relays; Selectors; Emergency protective devices › 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
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)
10/1999
10/28/1999WO1999054978A1 Differential current protective circuit breaker
10/28/1999DE19818055A1 Protective difference current (DI) circuit breaker with power switch for protecting electrical plant from fault currents
10/27/1999EP0952507A1 Current control apparatus
10/27/1999EP0951727A1 Reduced tensioning time for electronically controlled switch contactors
10/27/1999CN2346070Y Open-phase protective A. C. contactor
10/21/1999DE19816560A1 Master-slave line supply socket arrangement
10/20/1999EP0878015B1 Method of establishing the residual useful life of contacts in switchgear and associated arrangement
10/20/1999CN2344867Y Multifunctional static signal relay
10/20/1999CN2344866Y Energy-saving AC contactor
10/14/1999DE19913933A1 Circuit for switching on user load e.g safety release equipment
10/12/1999US5965960 Electronic limit switch system
10/07/1999DE19814302A1 Elektro-Hausgerät, insbesondere elektrischer Durchlauferhitzer Electrical home appliance, particularly electric water heater
10/06/1999EP0948015A2 Electrical domestic machine, in particular continuous-flow heater
10/06/1999EP0946956A1 Method and system for detecting relay failure
10/06/1999CN2342505Y Action protector for leakage current
09/1999
09/29/1999EP0944911A1 Safety relay
09/29/1999EP0879475B1 Electronic switch magnet control system for holding a contactor
09/29/1999CN2341269Y T-type sectional electric power-saving noiseless A. C. contactor
09/29/1999CN2341268Y 接触器 Contacts
09/28/1999US5959826 Control device for an electromechanical contactor-circuit breaker type device with separable power contacts
09/28/1999US5959825 System and method for controlling flow of current in control valve winding
09/28/1999US5957374 Voltage boosting system and method for electronic thermostat relay
09/23/1999WO1999047905A2 Handheld sensing apparatus
09/22/1999EP0944100A1 Method and apparatus for controlling electromagnetic valve in industrial vehicle
09/21/1999US5956222 Electronic switch for quick, automatic response to current overloads
09/21/1999US5955791 Master/slave circuit for dust collector
09/15/1999EP0941550A1 Electromagnet for an electrovalve
09/15/1999CN2338875Y Relay type long-service-life approaching switch
09/14/1999US5953198 Electromagnetic drive apparatus
09/14/1999US5953197 Method for operating a replay arrangement to reduce noise due to acceleration
09/10/1999WO1999045553A1 Direct current magnet system for an electromagnetic switching device
09/08/1999CN2337672Y Mining multi-function portable small switch
09/07/1999CA2187662C Electromagnet energizing coil power circuit
09/01/1999EP0939411A2 Drive circuit
09/01/1999CN2336470Y Voltage acting characteristic improved AC contactor
09/01/1999CN1227395A Circuit for controlling application of electricity to coil of and electric current switching apparatus
08/1999
08/31/1999US5946209 Motion sensing system with adaptive timing for controlling lighting fixtures
08/31/1999CA2124630C Contactor operation control device
08/25/1999EP0938118A1 Controller for relay
08/25/1999CN1044835C Control system and device for contactor apparatus
08/18/1999EP0936649A2 Circuit for controlling application of electricity to a coil of and electric current switching apparatus
08/18/1999EP0865661B1 Contactor safety combination
08/17/1999US5939961 Electric safety locking device
08/12/1999DE19821804C1 Method of functional monitoring of an electromagnetically actuated gas changeover valve
08/11/1999CN1225334A Method and apparatus for controlling electromagnetic valve in industrial vehicle
08/04/1999CN2332060Y Soundproofing energy-saving A. C. contactor
08/04/1999CN2332059Y Self-adaption high-frequency converter type mixe complementary electromagnetic switch
08/04/1999CN1044533C Drive circuit of an electromagnetic device
08/03/1999US5933313 Pulse-width modulation control system for electronic device
07/1999
07/28/1999CN1224226A Control device for electromechanical contactor-circuit breaker type device
07/27/1999US5930104 For energizing an actuator coil over a wide range of operating voltages
07/21/1999EP0929818A1 Electrical circuit to detect load current
07/14/1999CN2329084Y Micro power consumption pulling type permanent magnet AC contactor
07/08/1999WO1999034225A1 Compound switching matrix for probing and interconnecting devices under test to measurement equipment
07/07/1999EP0766868B1 Solenoid operated remote resetting device with a protective activation circuit
07/01/1999WO1999033077A1 Electric switching device with closed-circuit protection
07/01/1999DE19858026A1 Process for controlling a solenoid
06/1999
06/30/1999EP0926795A1 Electronic control circuit for a relay, especially for supply control of a heatable element of a windshield or rear window of an automobile
06/30/1999EP0925597A1 Current limiting circuit
06/29/1999US5915667 Proportional solenoid valve control system
06/24/1999WO1999031696A1 Electronic control circuit for a latching relay
06/24/1999WO1999030837A1 Auto shut-off glue gun
06/24/1999CA2314082A1 Auto shut-off glue gun
06/23/1999EP0924585A1 Surveillance device for garage door drive
06/23/1999CN2325868Y Silencing and energy saving protector
06/22/1999US5914850 Contactor equipment
06/22/1999US5914849 DC actuator control circuit with voltage compensation, current control and fast dropout period
06/17/1999WO1999030338A1 Electromagnetic relay
06/17/1999DE19753852A1 Elektromagnetisches Relais Electromagnetic relay
06/17/1999CA2312486A1 Electromagnetic relay
06/16/1999CN2324626Y Solid-state arc-extinguishing auxiliary contactor
06/15/1999US5912795 Circuit reset lockout
06/08/1999US5910890 Circuit for controlling application of electricity to a coil of and electric current switching apparatus
06/02/1999CN2322254Y Compensation type low iron temp. ac contactor
06/01/1999US5909352 Alternator circuit for use in a liquid level control system
06/01/1999US5909064 Time delay relay circuit
05/1999
05/25/1999US5907252 Driving circuit for electromagnetic relay
05/12/1999CN2318706Y Control device for vacuum contactor
05/12/1999CN1216632A Inductive charge control device
05/11/1999US5903123 Emergency stop circuit for a robot
04/1999
04/29/1999WO1999021269A1 Method and circuit for reducing voltage dips in battery supply lines
04/28/1999EP0911851A1 Control device for an electromechanical contactor-circuit breaker type device with separable power contacts
04/28/1999EP0911840A2 Control circuit for an electromagnet
04/24/1999CA2250348A1 Control device for switch-breaker apparatus
04/22/1999DE19837374A1 Reducing voltage break-ins to battery leads for use with pulse-width modulation control circuits in motor vehicles
04/21/1999EP0910105A2 Electrical switching system
04/21/1999EP0909451A1 Inductive charge control device
04/20/1999US5895988 Safety system for an electronic device having multiple power inputs
04/15/1999DE19751674A1 Fail-safe safety cut-out circuit
04/14/1999EP0830699A4 Control method and device for a switchgear actuator
04/14/1999EP0764238B1 Method and device for controlling an electromagnetic consumer
04/14/1999CN2314466Y A. C. contactor with overvoltage protector
04/14/1999CN2314465Y Compensative low iron-core temperature A.C. contactor
04/14/1999CN2314464Y Contactor with self controlling switch
04/14/1999CN1214154A Ground fault circuit interrupter
04/13/1999US5894398 Solenoid operated remote resetting device with a protective activation circuit
04/13/1999US5894397 Multi-purpose passive switching device
04/13/1999US5894395 Contactor-circuit breaker
04/13/1999US5894274 Monitoring device having monitoring switches
04/06/1999US5892389 Method and circuit for current limiting of DC-DC regulators
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