| Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158) |
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| 05/17/1988 | US4745513 Protection of GTO converters by emitter switching |
| 05/17/1988 | US4745478 RF switch |
| 05/17/1988 | US4745450 Integrated circuit high voltage protection |
| 05/17/1988 | US4745311 Solid-state relay |
| 05/17/1988 | US4745300 Two-wire switch |
| 05/17/1988 | US4745298 Signal selection circuit |
| 05/17/1988 | US4745274 Semiconductor light detecting integrated circuit |
| 05/17/1988 | US4744672 Semiconductor arrangement |
| 05/17/1988 | CA1236895A1 Capacitance membrane switch |
| 05/17/1988 | CA1236879A1 Power switching circuitry |
| 05/11/1988 | DE3735694A1 Electronic switching device operating contactlessly |
| 05/11/1988 | DE3731412A1 High-voltage switch |
| 05/11/1988 | DE3636687A1 Lighting switch device for internal lighting in motor vehicles |
| 05/11/1988 | CN87202441U Optical-controlled switch |
| 05/10/1988 | US4744105 Receiver using optical feedback |
| 05/10/1988 | US4743899 Decoder/multiplexer circuit including multi-emitter transistors |
| 05/10/1988 | US4743895 Capacitive switches |
| 05/10/1988 | US4743872 Switched capacitor circuit |
| 05/10/1988 | US4743785 FET pulse control apparatus with fast rise time and constant pulse level |
| 05/10/1988 | US4743780 Pulse generator with shielded Wiegand wire |
| 05/10/1988 | US4743464 Matrix arrangement |
| 05/10/1988 | US4742583 Water supply control apparatus |
| 05/10/1988 | CA1236525A1 Alternating current limiting type semiconductor current circuit breaker |
| 05/10/1988 | CA1236523A1 Electronic switching apparatus |
| 05/05/1988 | WO1988003259A1 Apparatus for processing signals of a pulse encoder |
| 05/04/1988 | EP0266218A2 Transistor-transistor logic circuit with internal delay elements |
| 05/04/1988 | EP0265844A2 Electronic switching device operating without contact |
| 05/04/1988 | EP0265472A1 Optical keyboard with enhanced sensitivity. |
| 05/04/1988 | CN87211012U Electronic automatic delay switch |
| 05/03/1988 | US4742549 Procedure for watching over the area in front of a lift |
| 05/03/1988 | US4742540 Circuit for switching between balanced networks |
| 05/03/1988 | US4742249 RF switch with diode network and control latch sharing common element |
| 05/03/1988 | US4742191 Keyboard proximity switch |
| 04/28/1988 | DE3636104A1 Electronic relay |
| 04/27/1988 | EP0265315A1 Integrated bistable electronic switch with a small voltage drop |
| 04/27/1988 | EP0265029A1 Analog signal multiplexer |
| 04/27/1988 | EP0264470A1 Method for digital control of the output signal edge steepness of LSI semiconductor chip power amplifiers designated for use in a computer |
| 04/26/1988 | US4741000 Photoelectronic switch |
| 04/26/1988 | US4740883 Universal solid state power controller |
| 04/26/1988 | US4740723 Semiconductor switch |
| 04/26/1988 | US4740722 Composite semiconductor device |
| 04/26/1988 | US4740717 Switching device with dynamic hysteresis |
| 04/26/1988 | US4740714 Enhancement-depletion CMOS circuit with fixed output |
| 04/26/1988 | US4740713 MOS semiconductor integrated circuit in which the production of hot carriers near the drain of a short n channel conductivity type MOS transistor is decreased |
| 04/26/1988 | US4740687 Light pulse detecting device with improved response characteristic utilizing cascode-connected light sensitive device |
| 04/26/1988 | US4740686 Optical sensor circuitry |
| 04/21/1988 | WO1988002949A1 Inverter |
| 04/20/1988 | EP0264239A2 An arrangement for linking multistage switching matrices |
| 04/20/1988 | EP0264046A1 Switching device for broad-band signals |
| 04/20/1988 | EP0263832A1 Control circuit of the power transistor in a dc/ac converter |
| 04/20/1988 | CN87209142U Digital multi-channel universal time relay |
| 04/20/1988 | CN87206272U Contactless light-controlled switch for street lamp |
| 04/20/1988 | CN87107027A Arragement for linking multistage switching matrices |
| 04/20/1988 | CN86205870U Lamp turn-off delayer |
| 04/19/1988 | US4739437 Pacemaker output switch protection |
| 04/19/1988 | US4739226 Dimming circuit having switching transistor protection means |
| 04/19/1988 | US4739199 High switching speed semiconductor device |
| 04/19/1988 | US4739198 Signal output circuit of a push-pull type |
| 04/19/1988 | US4739192 Fast settling digital to analog converter bit switch |
| 04/19/1988 | US4739190 Monolithically integratable high efficiency switching circuit |
| 04/19/1988 | US4739174 Converting circuit having first and second optically coupled phototransistors and first and second operational amplifiers |
| 04/14/1988 | DE3634070A1 Circuit arrangement for switching through an electrical voltage |
| 04/13/1988 | EP0263750A1 Sample and hold circuit with a high sample frequency |
| 04/13/1988 | EP0263343A2 Power transistor with self-protection against direct secondary breakdown |
| 04/13/1988 | CN86207744U Solid-state cutouter with high-sensitivity |
| 04/12/1988 | US4737768 Electronic identification assemblies of capacitive keyboards |
| 04/12/1988 | US4737767 Solid state keyboard |
| 04/12/1988 | US4737669 Slow-start system for a control circuit |
| 04/12/1988 | US4737667 Driving circuitry for a MOSFET having a source load |
| 04/12/1988 | US4737659 Controlled switching array |
| 04/12/1988 | US4737632 Array assembly of photoelectric touch panel with bent sidewalls |
| 04/12/1988 | US4737631 Filter of photoelectric touch panel with integral spherical protrusion lens |
| 04/12/1988 | US4737626 Photoelectric touch panel having reflector and transparent photoconductive plate |
| 04/12/1988 | CA1235183A1 Temperature-dependent, voltage reference comparator/diode |
| 04/07/1988 | WO1988002579A1 Interference field-insensitive proximity detector |
| 04/07/1988 | WO1988002578A1 Time domain reflectometer |
| 04/07/1988 | WO1988002544A1 Solenoid driver control circuit with initial boost voltage |
| 04/06/1988 | EP0262958A2 Thyristor drive system |
| 04/06/1988 | EP0262909A2 Touch controlled switching circuit |
| 04/06/1988 | EP0262827A1 Decoder/multiplexer circuit |
| 04/06/1988 | EP0262820A2 Apparatus for non-dissipative switching transistor snubber |
| 04/06/1988 | EP0262479A1 Switching device for broad-band signals |
| 04/06/1988 | CN87209902U Mechanical time sequence synchronous photoelectric pulse generator |
| 04/06/1988 | CN87106591A Laser arrangement with high-tension pulse generator and high-tension pulse generator and method of generating pulse |
| 04/05/1988 | US4736380 For producing an optical pulse |
| 04/05/1988 | US4736271 Protection device utilizing one or more subsurface diodes and associated method of manufacture |
| 04/05/1988 | US4736268 High frequency AC solid state switch |
| 04/05/1988 | US4736267 Fault detection circuit |
| 04/05/1988 | US4736191 Touch activated control method and apparatus |
| 04/05/1988 | US4736121 Charge pump circuit for driving N-channel MOS transistors |
| 04/05/1988 | US4736117 VDS clamp for limiting impact ionization in high density CMOS devices |
| 04/05/1988 | CA1234905A1 400 hz aircraft ground power supply |
| 03/31/1988 | DE3631957A1 Circuit arrangement for turning off transistors in a Darlington circuit |
| 03/30/1988 | EP0262017A1 Base control circuit for the transistors of an inverter branch |
| 03/30/1988 | EP0261879A2 Transfer gate circuit |
| 03/30/1988 | EP0261663A2 Laser device with high-voltage pulse generator, high-voltage pulse generator and pulse generating method |
| 03/30/1988 | EP0261631A2 Integrated light-triggered and light-quenched static induction thyristor and making method thereof |
| 03/30/1988 | EP0261366A1 Fast digital power amplifier |
| 03/30/1988 | EP0261188A1 Improvements to optical mirror keyboards |
| 03/29/1988 | US4734594 Offset correction for sensor with temperature dependent sensitivity |