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)
07/1993
07/28/1993CN1074783A Magnetic synchrotrans electromagnetic device
07/28/1993CN1074782A Overload cut off self-lock type relay
07/27/1993CA1320755C Control method and device for a contactor-using facility
07/27/1993CA1320754C Contacting apparatus control method and device
07/22/1993WO1993014506A1 Circuit for driving load
07/21/1993CN2138833Y Time controller for domestic electric appliance
07/14/1993CN2138344Y Non-time-delay electronic noiseless operation energy saver
07/14/1993CN2138343Y Non-contact energy saving coil of AC contactor
07/14/1993CN2138342Y Energy saving noiseless electromagnetically acting device of AC contactor
07/13/1993US5227729 Fusion detecting system for relays
07/08/1993WO1993013536A1 Improved outdoor lighting controls
06/1993
06/30/1993EP0548915A1 Control circuit for predominantly inductive loads, in particular, electroinjectors
06/23/1993CN2137027Y Delay-action circuit breaker
06/23/1993CN2137026Y Low-pressure starting regulation protector
06/23/1993CN1073548A Magnetically repelling, delay switching coil featuring low noise and electric save
06/22/1993US5222011 Load driver circuit
06/22/1993CA1319413C Molded case circuit breaker actuator-accessory module
06/22/1993CA1319292C Ventilation device
06/16/1993CN2136524Y Electromechanic integrated contactor-relay
06/09/1993DE4140034A1 Energising circuit for mains voltage electromagnetic switch controlling e.g. washing machine - has two parallel-connected semiconductor switches in series with capacitor which is charged and discharged during positive and negative half cycles
06/09/1993CN2135833Y Ac/dc universal relay
06/09/1993CN1073040A Device to determine state of equipment, especially on-off state of electric equipment, by means of auxiliary contact
06/09/1993CN1073039A Slight power consumption relay and contactor
06/08/1993US5218509 Electrically operated control device and system for an appliance and method of operating the same
06/08/1993US5218196 Light curtain system with system and watchdog microcontrollers
05/1993
05/26/1993EP0543030A1 Integrable driving circuit for a direct current delay
05/26/1993CN2134712Y Cross-linked timer
05/25/1993US5214561 Current control circuit for an electromagnetic type actuator
05/25/1993US5214558 Chopper drive control circuit
05/19/1993CN2133934Y Dual-purpose energy-saving switch for off delay of exhaust fan
05/19/1993CN2133933Y Magnetic self-transfer electricity-saving coil
05/19/1993CN2133932Y Contact-type electronic relay
05/19/1993CN1020827C Circuit breaker auxiliary switch assembly
05/12/1993CN2133047Y Improved delay switch for lighting of high building
05/11/1993US5210384 Acceleration sensor with magnetic biased mass and encapsulated contact terminals and resistor
05/05/1993CN2132282Y Magnetic repulsion time-delay changeover silencing electricity-saving coil
05/05/1993CN2132281Y Ac connector silent running electricity-saving device
05/05/1993CN2132280Y Energy-saving silent running device
05/05/1993CN1071783A Automatic switch safety circuit for outdoor illumination
04/1993
04/29/1993WO1993008582A1 Device with contacts for determining the condition of an apparatus
04/21/1993EP0538109A1 Contact device to determinate the status of an apparatus
04/20/1993US5204802 Method and apparatus for driving and controlling an improved solenoid impact printer
04/20/1993US5204646 Electromechanical switches with segmented coils
04/20/1993US5204633 Electromagnetic contactor with closure fault indicator
04/15/1993WO1993007637A1 Inductive load switch utilizing simplified gating
04/14/1993CN2129970Y Silence power saving phase losing protector for contactor
04/14/1993CN2129969Y Ac switch electric spark control
04/07/1993EP0535844A1 Remote control residential circuit breaker
04/07/1993CN2129466Y Micro power consumption energy saving ac contactor
04/07/1993CN2129465Y Multi-purpose circular time household electric appliance power saving controller
04/07/1993CN2129464Y Controller for ac electromagnetic coil
04/06/1993US5200723 Remotely-controlled relay
03/1993
03/25/1993DE4130770A1 Low loss switching system for AC mains supplied LV relay - has short circuit arrangement based around thyristor that protects against change in range switch setting
03/24/1993CN2128774Y Counter magnetic A.C, D.C. contactor
03/23/1993US5196730 Arrangement of automatically restoring normal operation of latch-in relay
03/18/1993WO1993005412A1 Area light switch
03/17/1993EP0532298A1 Multi-voltage solenoid
03/17/1993CN2128415Y Auto-controlled timing switch for electronic game computer
03/16/1993US5195016 Photoelectric load control system
03/04/1993DE4128861A1 Safety circuit for separate or coupled electrical drives such as printing units - has relay circuits with coupled control lines that connect to switching circuitry
03/03/1993EP0530151A1 Power supply for an electromagnet by means of a dc current source
02/1993
02/24/1993EP0528357A2 Controller for fixed-time pull-in of a relay
02/22/1993CA2076327A1 Controller for fixed-time pull-in of a relay
02/17/1993CN1069143A Magnetic-synchro conversion electricity-economizing coil
02/04/1993DE4125111A1 Timing relay with wide voltage range - has FET control stage for timing element that limits voltage to specific range
01/1993
01/19/1993US5181001 Remotely-controlled relay
01/13/1993CN1067987A Polarized rare-earth permanent-magnet contactor and control system for pulse type electric equipment
01/13/1993CN1067986A Electromagnetic switch coil damping, demagnetizing and electricity-saving protector
01/07/1993EP0521118A1 Device and method for operating electrical equipment
12/1992
12/23/1992EP0395741B1 Driver circuit for solenoid operated fuel injectors
12/16/1992EP0216816B1 Circuit for dissipating stored inductive energy
12/16/1992CN1019535B Coil for silencing and energy-saving
12/15/1992US5172291 Intelligent power controller
12/15/1992US5172086 Remotely controlled relay
12/15/1992US5172008 Multi-way sequential power-on circuit
12/09/1992CN2124527U Antiscintillating power-saving autocontrolling cabinet for secondary starting of motor
12/09/1992CN2124483U Mercury thermoelectric signal transducer
12/03/1992DE4117535A1 Relay control circuit for domestic electrical appliance - uses switching transistor supplied with control signal dependent on supply voltage amplitude
12/02/1992EP0452358A4 Method and apparatus for driving and controlling an improved solenoid impact imprinter
12/01/1992US5168418 for an electrical device
11/1992
11/26/1992DE4116948A1 Hybrid power relay circuit - uses MOSFET controlling parallel path across relay energising winding
11/18/1992CN2122434U A.c. economizing contactor
11/17/1992US5164695 Interlocked contactor assembly
11/12/1992WO1992020084A1 A control circuit with timer function for an electrical consumer appliance
11/11/1992CN2121750U Silencing economizer of a. c. contactor
11/11/1992CN2121749U Small-size large power bistable relay
11/10/1992US5162968 Fiber optic wiring control system
11/10/1992CA1310053C Relay control method and apparatus for a domestic appliance
11/04/1992CN2121074U Double steady trigger relay circuit module
11/03/1992US5161112 Device for sensing and discriminating operational faults in an electrical power supply
11/03/1992US5160928 System for regulating the mean current flowing through the load of an electric remote control device
10/1992
10/29/1992WO1992018999A1 Garage door operator safety apparatus
10/27/1992US5159203 Safety circuit for flywheel masses or machine parts that are driven by electric motor and can be braked or arrested electrically
10/22/1992DE4112996A1 Functional monitor for electrical load controlled by switch - measures voltage and/or current of control line by fault identification circuit when fault detection circuit is activated
10/21/1992EP0509824A2 Double DC coil timing circuit
10/21/1992CN1018778B Protective assembly for contactor electromagnet
10/20/1992CA2066357A1 Double dc coil timing circuit
10/14/1992EP0508314A2 Circuit for detecting short-circuiting of inductive load drive devices
10/14/1992CN1065350A Megnetoretensive energy-saving a. c. contactor
10/13/1992US5155458 Normally closed AC relay
1 ... 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 ... 74