| Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158) |
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| 05/17/1989 | CN2037902U Photoacoustic dual-controlled electricity-saving switch |
| 05/17/1989 | CN2037870U Automatic power switch for radiophotograph machine |
| 05/16/1989 | US4831344 IC output circuit for use in pulse width modulator |
| 05/16/1989 | US4831288 Direct parallel connection circuit of self-turn-off semiconductor elements |
| 05/16/1989 | US4831284 Two level differential current switch MESFET logic |
| 05/16/1989 | US4831282 CMOS input circuit |
| 05/16/1989 | US4831280 High voltage pulse generating apparatus |
| 05/16/1989 | US4831279 Capacity responsive control circuit |
| 05/16/1989 | US4831253 Rotary type photoelectric switch |
| 05/11/1989 | DE3736347A1 Delay circuit |
| 05/10/1989 | EP0315597A2 Analog multiplex for sensing the magnitude and sense of the current through a H-bridge stage utilizing a single sensing resistance |
| 05/10/1989 | EP0315473A2 Output buffer having programmable drive current |
| 05/10/1989 | EP0314808A1 Clipper circuit for power transistor circuit and inverter circuit utilizing the same. |
| 05/10/1989 | EP0314681A1 Final stage of a bridge circuit. |
| 05/10/1989 | CN2037518U Illumination automatic controller |
| 05/09/1989 | US4829541 Pseudo-ternary code transmitter |
| 05/09/1989 | US4829457 Overload protection circuit for solid state switch |
| 05/09/1989 | US4829202 Semiconductor integrated bipolar switching circuit for controlling passage of signals |
| 05/09/1989 | US4829200 Logic circuits utilizing a composite junction transistor-MOSFET device |
| 05/09/1989 | US4829199 Driver circuit providing load and time adaptive current |
| 05/09/1989 | US4829197 Driver circuit with boost and feedback portions for improving output risetime and reducing propagation delay |
| 05/09/1989 | US4829159 Method of optimizing control of plural switched electric loads to reduce switching transients |
| 05/09/1989 | CA1253949A1 Optoelectronic assembly and method of making the same |
| 05/09/1989 | CA1253928A1 Control device for controllable electric valve |
| 05/03/1989 | EP0314386A2 A power supply |
| 05/03/1989 | EP0314373A2 Lightwave systems using optical amplifiers |
| 05/03/1989 | EP0314221A2 Semiconductor switch with parallel LDMOS and LIGT |
| 05/03/1989 | EP0314013A1 Method for regulating the base current of a switching transistor and circuit arrangement for carrying out the method |
| 05/03/1989 | DE3835647A1 Schaltungsanordnung mit eingangsleitungen und einer ausgangsleitung Circuit with input lines and one output line |
| 05/03/1989 | DE3833700A1 Circuit arrangement for a three-point power inverter switching pole |
| 05/03/1989 | CN2037123U Gas-sensitive switching device |
| 05/03/1989 | CN2037107U Single phase power supply connecting device with delay connecting function |
| 05/02/1989 | US4827497 Electronic trigger switch for maintenance termination unit |
| 05/02/1989 | US4827158 Output circuit used in an output stage where large current and large output amplitude are required |
| 05/02/1989 | US4827156 Non-overlapping switch drive in push-pull transistor circuit |
| 05/02/1989 | US4827153 Circuit arrangement for optionally connecting signal sources to a signal sink |
| 05/02/1989 | US4827116 Square wave modulation circuit for laser diode |
| 04/27/1989 | DE3735331A1 Transmission device for transmitting signals through a disc (pane, plate, screen) which lets these signals pass, and a housing which can be mounted on the disc |
| 04/27/1989 | DE3735012A1 Overvoltage protection circuit |
| 04/26/1989 | EP0313337A2 Timing controller for high-speed digital integrated circuit |
| 04/26/1989 | EP0313162A2 Control and remote control of a switchable battery-fed device by the approach to or the departure from the vicinity by a user |
| 04/26/1989 | EP0312845A1 Monitoring device for reversing vehicles |
| 04/26/1989 | EP0312731A2 Signal selection circuit |
| 04/26/1989 | EP0312630A1 Temperature compensation for semiconductor logic gates |
| 04/26/1989 | EP0312606A1 Pre-drive circuit |
| 04/26/1989 | CN2036728U Time delay automatic turn-off device for electric lamps |
| 04/26/1989 | CN2036702U Electronic timed switch |
| 04/26/1989 | CN1032597A Magneto-optical recording apparatus and energizing circuit for use in such magneto-optical recording apparatus |
| 04/26/1989 | CN1004042B Adjustable speed up circuit for ttl-type gates |
| 04/25/1989 | US4825415 Signal input circuit having signal latch function |
| 04/25/1989 | US4825330 Ultra-fast solid state power interrupter |
| 04/25/1989 | US4825272 Semiconductor power switch with thyristor |
| 04/25/1989 | US4825144 Dual channel current mode switching regulator |
| 04/25/1989 | US4825143 Digital meter automatic off power supply circuit |
| 04/25/1989 | US4825101 Full-level, fast CMOS output buffer |
| 04/25/1989 | US4825099 Feedback-controlled current output driver having reduced current surge |
| 04/25/1989 | US4825081 Light-activated series-connected pin diode switch |
| 04/25/1989 | US4823825 Method of operating an electromagnetically actuated fuel intake or exhaust valve of an internal combustion engine |
| 04/25/1989 | CA1253245A1 Solid state circuit interruption employing a stored charge power transistor |
| 04/20/1989 | WO1989003616A1 Inductive proximity detector |
| 04/20/1989 | WO1989003615A1 Process and device for exciting an oscillating circuit |
| 04/20/1989 | WO1989003614A1 Two-mode driver circuit |
| 04/20/1989 | WO1989003613A1 A current switching arrangement |
| 04/20/1989 | WO1989003579A1 Circuit arrangement for accelerating the supply to an electromagnetic consumer |
| 04/20/1989 | WO1989002201A3 High-speed digital data communication system |
| 04/20/1989 | DE3734415A1 Schaltungsanordnung zur beschleunigung der versorgung eines elektromagnetischen verbrauchers Circuit arrangement for the supply of an electromagnetic acceleration consumer's |
| 04/19/1989 | EP0312144A2 High voltage pulse power driver |
| 04/19/1989 | EP0312143A1 Magneto-optical recording apparatus and energizing circuit for use in such a magneto-optical recording apparatus |
| 04/19/1989 | EP0311957A1 Process for operating a free "shoot-through" current of a push-pull circuit and proceeding method |
| 04/19/1989 | EP0311839A1 Turn-off semiconductor device and circuitry comprising this device |
| 04/19/1989 | EP0311605A1 Transistor arrangement with an output transistor. |
| 04/19/1989 | CN2036338U Inducting automatic switch for electric equipment |
| 04/19/1989 | CN2036337U Single pole switch with relay feature |
| 04/19/1989 | CN2036336U Electronic timing switch |
| 04/18/1989 | US4823029 Noise controlled output buffer |
| 04/18/1989 | US4823025 Electronic circuit element with field-effect transistor operation applications of this circuit element, and substitution circuit for such an element |
| 04/18/1989 | US4823021 Circuit for detecting on/off states of switches |
| 04/18/1989 | US4822991 Optically switched microwave pulse generator |
| 04/18/1989 | US4821706 High voltage pulse power drive |
| 04/18/1989 | CA1252832A1 Optical pulse receiving circuit |
| 04/13/1989 | DE3821460A1 Power semiconductor element and method for producing it |
| 04/13/1989 | DE3737791A1 Fail-safe switch device |
| 04/13/1989 | DE3733113A1 Detecting, protective and safety circuit having piezoceramic sensors |
| 04/13/1989 | DE3732210A1 Asymmetric thyristor |
| 04/12/1989 | EP0311576A2 Active overvoltage control for inductive load driving |
| 04/12/1989 | EP0311129A1 Inductive proximity sensor |
| 04/12/1989 | EP0311128A1 Method and device for exciting a resonating circuit |
| 04/12/1989 | EP0311102A2 Semiconductor IC including circuit for preventing erroneous operation caused by power source noise |
| 04/12/1989 | EP0311083A2 Semiconductor circuit device |
| 04/12/1989 | EP0310663A1 Control systems and methods for controlling controlled semiconductor switching devices |
| 04/12/1989 | CN2035942U Miniature contact type electronic switch |
| 04/12/1989 | CN2035941U 电子式时间继电器 Electronic time relay |
| 04/12/1989 | CN1032409A Integrated time relay for frequency display |
| 04/12/1989 | CN1032316A Automatical switch for far and near headlights of automobile |
| 04/11/1989 | US4821315 Electronic contacts and associated devices |
| 04/11/1989 | US4821136 Power transistor with self-protection against direct secondary breakdown |
| 04/11/1989 | US4821093 Dual channel high electron mobility field effect transistor |
| 04/11/1989 | US4821083 Thyristor drive system |
| 04/11/1989 | US4820986 Inductive circuit arrangements |
| 04/11/1989 | CA1252524A1 Electronic delay circuits |