Patents
Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158)
05/1984
05/16/1984EP0108603A2 Field effect transistor gate circuit for switching analog signals
05/16/1984EP0108391A2 Optically controlling apparatus
05/16/1984EP0108283A2 Electronic switch
05/15/1984US4449162 Drive circuit
05/15/1984US4449161 One shot firing circuit for power tools
05/15/1984US4449158 Input protection circuit for MIS transistor
05/15/1984US4449067 Low power, process and temperature insensitive FET bias circuit
05/15/1984US4449066 Buffer circuit for generating output signals having short recovery time
05/15/1984US4448074 Soft-switching audiometer
05/15/1984CA1167525A1 Load control and switching circuits
05/08/1984US4447849 Electromagnetic control circuit
05/08/1984US4447798 Processor select switch
05/08/1984US4447746 Digital photodetectors
05/08/1984US4447744 Control circuitry for high voltage solid-state switches
05/08/1984US4447704 Semiconductor device for driving thermal print heads
05/08/1984CA1167102A1 D.c. switch circuit
05/08/1984CA1167100A1 Device for compensating the reactive electrical energy in a network
05/03/1984EP0044342A4 Pressure sensitive piezoelectric polymer signal generator.
05/02/1984EP0107359A2 Alternating current limiting type semiconductor current circuit breaker
05/02/1984EP0107318A1 Solid state keyboard
05/02/1984EP0107137A1 A semiconductor switching circuit with an overcurrent protection
05/02/1984EP0107028A2 Circuit arrangement with a transistor output circuit and a protection circuit for limiting the output current of the transistor output circuit
05/01/1984US4446552 Wideband switch crosspoint and switching matrix
05/01/1984US4446513 DC/AC Bridge inverter including a switching aid and inductive energy recovery circuit
05/01/1984US4446390 Low leakage CMOS analog switch circuit
05/01/1984US4446387 MOS Inverter-buffer circuit having a small input capacitance
05/01/1984US4446382 Arrangement to time separate bidirectional current flow
05/01/1984US4446381 Circuit and technique for initializing the state of bistable elements in an integrated electronic circuit
04/1984
04/26/1984WO1984001659A1 Selectively operable electrical connection circuit
04/25/1984EP0106119A1 Remotely operable switch
04/25/1984EP0106059A1 Semiconductor switch with a gate turn-off thyristor
04/24/1984US4445055 Circuit arrangement for controlling a power field-effect switching transistor
04/24/1984CA1166359A1 Gated diode switch
04/24/1984CA1166335A1 Dashboard with inlaid contacts
04/24/1984CA1166309A1 Thyristor valve for a high voltage convertor
04/24/1984CA1166308A1 Single-ended switching converter
04/18/1984EP0105780A2 Boost voltage generator
04/18/1984EP0105697A1 Electrical timing control switch
04/18/1984EP0105307A1 Electric switch device with an actuator key comprising a non-galvanically coupled indicator display
04/18/1984EP0105287A1 Contact-free keyboard
04/17/1984US4443773 Switching network for megahertz frequency signals
04/17/1984US4443719 Voltage isolated gate drive circuit
04/17/1984US4443716 Symmetrical-hysteresis Hall switch
04/17/1984US4443714 Semiconductor buffer circuit having compensation for power source fluctuation
04/17/1984US4443712 Switch device for connecting AC power source to load
04/17/1984US4443275 Soldewring, filling synthetic plates
04/10/1984US4442480 Protective circuit for thyristor controlled systems and thyristor converter embodying such protective circuit
04/10/1984US4442411 Circuit for the load-proportional adjustment of the driving current of a single-ended output transistor of a transistor amplifier, operated in a common-emitter circuit
04/10/1984CA1165425A1 Process control method and apparatus
04/10/1984CA1165423A1 Capacitive keyswitch with overtravel mechanism on moveable plate
04/10/1984CA1165408A1 Comparator
04/04/1984EP0104999A2 Gain switching device with reduced error for watt meter
04/04/1984EP0104956A2 Keyboard
04/04/1984EP0104925A2 Semiconductor device, for example, for a thermal head for a printer
04/04/1984EP0104851A1 Bi-directional driver system for electrical load
04/04/1984EP0104827A1 Space bar for low profile keyboards
04/04/1984EP0104390A1 Gate turn-off thyristor
04/04/1984EP0104168A1 Optical keyboard with common light transmission members.
04/03/1984US4441136 Switching circuit
04/03/1984US4441068 Bipolar linear current source driver amplifier for switching loads
04/03/1984US4441035 CMOS Turn-on circuit
04/03/1984US4441034 Contact-controlled capacitive switching apparatus
04/03/1984CA1164961A1 Transistor protection circuit
03/1984
03/28/1984EP0104148A2 Apparatus for obtaining electrical signals correlated with the position of a mass of mercury in instruments and the like
03/28/1984EP0103950A2 Method of protecting a thyristor switch of a pulse generator for an electrostatic precipitator
03/28/1984EP0103670A1 High resolution superconductive sampling circuit
03/27/1984US4439638 Sound-activated code-controlled detection system for telephones and the like
03/21/1984EP0103182A1 Device for monitoring the valves of a power converter of an alternating voltage power converter
03/21/1984EP0103179A1 Semiconductor switch with a gate turn-off thyristor and a turn-off current path
03/20/1984US4438487 Digital phase-shifting circuit
03/20/1984US4438486 For providing stress relief to a first controllable semiconductor switch
03/20/1984US4438472 Active arc suppression for switching of direct current circuits
03/20/1984US4438357 Level sensitive reset circuit for digital logic
03/20/1984US4438356 Solid state relay circuit employing MOSFET power switching devices
03/20/1984US4438349 Hysteresis circuit having a stable output free from noise superposed on input signal
03/20/1984US4438345 Transistor pulse drive control circuit
03/15/1984WO1984001068A1 A pulse code modulated digital automatic branch exchange
03/14/1984EP0102618A2 Memory circuit with power supply voltage detection means
03/14/1984EP0102442A2 Active arc suppression circuit for direct current switches
03/13/1984US4437096 Concentrator circuit incorporating solid state bilateral bridge arrangement
03/13/1984US4437022 Monolithically integrated push-pull driver
03/13/1984US4437021 Line driver circuit
03/13/1984US4436436 Detection circuit for an electronic timepiece
03/13/1984CA1163727A1 Superconducting soliton devices
03/07/1984EP0101947A1 Driving circuit
03/07/1984EP0101853A2 Arrangement for delivering galvanically isolated signals for a control system
03/07/1984EP0101751A1 Transistor power amplifier with reduced switching periods
03/06/1984US4435827 Read clock pulse controller
03/06/1984US4435656 Phase inverter circuit
03/06/1984US4435652 Threshold voltage control network for integrated circuit field-effect trransistors
03/06/1984US4435651 Zero voltage switch
03/06/1984US4435634 Circuitry for driving electrodes in selected combinations
03/06/1984US4435090 Static pick-up for timepiece
02/1984
02/29/1984EP0101643A2 Constant current sources for field contact inputs
02/29/1984EP0101543A2 Switching light barrier
02/28/1984US4434379 Inverter using low-threshold-voltage field-effect transistors and a switching diode, formed as an integrated circuit
02/28/1984US4434363 Photoelectric switching apparatus
02/28/1984CA1162977A1 Thyristor-switched capacitor apparatus
02/22/1984EP0101017A2 Electronic timing switch
02/21/1984US4433362 Remotely controllable illumination apparatus