Patents
Sitemap › H03 - Basic electronic circuitry › H03K - Pulse technique › H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking
Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158)
11/1989
11/02/1989EP0339737A1 Integrated circuit having combinatorial logic functionality and provided with transmission gates having a low threshold voltage
11/02/1989EP0339736A1 Transistor arrangement with drive current limitation
11/02/1989EP0339721A2 TTL circuit having ramped current output
11/02/1989EP0339719A1 Switching matrix for telecommunication exchanges
11/02/1989EP0339587A2 Signal generating circuit free from malfunction based on noise
11/02/1989DE3828428C1 Voltage supply for proximity switches
11/02/1989DE3813816A1 Gate circuit
11/02/1989DE3813533A1 Electronic change-over switch
11/01/1989CN2047088U Multifunction high-efficiency electric saving automatic controller
11/01/1989CN2047080U Auto-control switch for tv. set
11/01/1989CN2047063U Multifunction dynamic relay
11/01/1989CN1036839A Circuit freakers test device
10/1989
10/31/1989US4878107 Touch sensitive indicating light
10/31/1989US4878057 Typewriter keyboard
10/31/1989US4878032 Amplifier stage with collector output
10/31/1989US4878011 Proportional firing circuit
10/31/1989US4877982 MOSFET turn-on/off circuit
10/31/1989US4877980 Time variant drive circuit for high speed bus driver to limit oscillations or ringing on a bus
10/25/1989EP0338945A1 Static thyristor-arrangement for a middle-range voltage AC network
10/25/1989EP0338220A2 Logic circuits of the multiplexer-type
10/25/1989EP0338122A1 Integrated circuit comprising a semiconductor magnetic field sensor
10/25/1989CN2046694U Pin二极管宽带开关 Pin diode switch broadband
10/25/1989CN2046693U Multi-purpose electronic timing warner
10/24/1989US4876635 Series resonant inverter with lossless snubber-resetting components
10/24/1989US4876514 Switching and testing system
10/24/1989US4876468 Thyristor driver turn-off circuit
10/24/1989US4876467 Transfer circuit for signal lines
10/24/1989US4876464 Sampled data circuit
10/24/1989US4876462 Control circuit for multipurpose input terminal
10/24/1989US4876461 Self-referencing capacitive key cell structure and switchcore matrices formed therefrom
10/24/1989CA1262474A1 Inductive circuit arrangements
10/19/1989DE3839373A1 Brightness control circuit for incandescent lamps and switched-mode power supplies having a protecting and limiting circuit to obtain an electronic safeguard
10/19/1989DE3811624A1 Circuit arrangement for controlling a bridge output stage
10/18/1989EP0337857A1 Control circuit for an inductive load
10/18/1989EP0337396A2 Two-wire detection system having self-diagnosis means
10/18/1989EP0337362A2 Power semiconductor device
10/18/1989EP0337193A1 Protection circuit for a gate turn off thyristor
10/18/1989EP0337078A2 High speed logic circuit
10/18/1989EP0203914B1 Touch controlled display device
10/18/1989EP0188474B1 Audio-video adapter for audio visual apparatuses
10/18/1989CN2046296U 防爆开关 Explosion-proof switch
10/18/1989CN2046295U Automatic switch of radio receiver
10/18/1989CN2046294U 简易电子定时器 Simple electronic timer
10/18/1989CN2046293U Energy-saving safety electronic switch
10/18/1989CN2046236U Acoustic and optical dual control electronic quartz clock
10/18/1989CN1036482A Circuit arrangement for protecting switch transistor
10/17/1989US4875131 Circuit configuration for monitoring a semiconductor structural element and providing a signal when the temperature exceeds a predetermined level
10/17/1989US4874965 Circuital device for the power-on reset of digital integrated circuits in MOS technology
10/17/1989US4874063 Portable elevator traffic pattern monitoring system
10/11/1989EP0336396A2 Non-saturation type logic circuit
10/11/1989EP0336235A2 Light identifying system
10/11/1989EP0336194A2 Power field effect transistor driver circuit
10/11/1989EP0336173A2 Molded component package isolating interior substrate by recesses containing exposed breakoffs
10/11/1989EP0116072B1 Multiplexer circuitry for high density analog signals
10/11/1989CN2045920U Self-stop unit for lamp
10/11/1989CN2045915U Infrared ray photoelectricity non-contact approach switch
10/11/1989CN2045914U Delayed switch
10/11/1989CN2045891U Wall switch with delayed lamp-stoped function
10/10/1989US4873712 Telephone controlled interrupter circuit
10/10/1989US4873494 Inductive loop presence detector with cross talk filter
10/10/1989US4873460 Monolithic transistor gate energy recovery system
10/10/1989US4873458 Voltage level detecting circuit having a level converter
10/10/1989US4873448 Input circuit having a photo-coupler with bi-directional indicator
10/10/1989US4873202 Doping, forming grooves, dielectric coating, coupling light emitting diode to substrate electrode
10/05/1989WO1989009515A1 Electronic push-button switch
10/04/1989EP0335838A2 Equipment with a support and at least one electric switching device comprising a piezoelectric element
10/04/1989EP0335460A1 An improved circuit arrangement for detecting cross-over by an alternating voltage of a fixed reference voltage level
10/04/1989EP0335217A2 Integrated Schottky diode and transistor
10/04/1989CN2045566U Automatic lamp turning off power saving switch
10/04/1989CN2045565U High-precision integrated circuit photoelectric autocontroller for road lamp
10/04/1989CN2045557U Auto-off switch device for light lamp
10/04/1989CN2045551U 冰箱保护器 Refrigerator protector
10/03/1989US4871961 Method of controlling the supply of power to electrical loads with a minimum of switching surges
10/03/1989US4871926 Low power, three state power up circuit
10/03/1989US4871686 Integrated Schottky diode and transistor
10/03/1989CA1262172A1 Anti-snoring device
09/1989
09/28/1989DE3808484A1 Sensor device for railway systems
09/27/1989EP0334775A1 Coil switching device
09/27/1989EP0334545A2 Single-level multiplexer
09/27/1989EP0334100A2 Full bridge switching circuit
09/27/1989EP0334050A2 A GaAs two level differential current switch (DCS) circuit
09/27/1989EP0333848A1 A current switching arrangement
09/26/1989US4870298 Power switch booster circuit
09/26/1989US4869119 Proximity detector, with adjustable orientation of its head
09/26/1989CA1261917A1 Power circuit and trigger device comprising same
09/26/1989CA1261391A1 Fast control circuit for power field effect transistor
09/26/1989CA1261036A1 Automotive valve actuation method
09/26/1989CA1261011A1 Method for the digital slope control of the output signals of power amplifiers of semiconductor chips with vlsi circuits for a computer
09/26/1989CA1260108A1 Keyboard for electric apparatus
09/21/1989WO1989008952A1 Anti-jamming device
09/21/1989WO1989008951A1 Electronic control circuits, electronically commutated motor systems, switching regulator power supplies, and methods
09/21/1989WO1989008950A1 Saturable inductance electric pulse generator
09/21/1989DE3907017A1 Pressure-operated electrical switch, particularly a brake-light switch
09/21/1989DE3808036A1 High-speed multiplexer
09/21/1989DE3808035A1 Multiplexer for Gigabit rates
09/21/1989DE3808034A1 Single-stage 4:1 multiplexer for RZ signals
09/21/1989DE3807811A1 Circuit arrangement for optionally connecting signal sources to a signal sink
09/20/1989EP0333563A1 Electric power supply control unit for a charge in an intellegent integrated power circuit
09/20/1989EP0333494A2 Semiconductor driver for producing switching and offset signals
09/20/1989EP0333412A1 Circuit breakers test device
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