| Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158) |
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| 08/08/1990 | EP0381214A2 Telephone having touch sensor for responding to a call |
| 08/08/1990 | EP0380960A2 BiCMOS output driver |
| 08/08/1990 | EP0380881A2 Protection circuit for a power mosfet driving an inductive load |
| 08/08/1990 | EP0380833A1 Reverse phase-controlled dimmer |
| 08/08/1990 | CN2060270U Time light control electricity-saving device |
| 08/08/1990 | CN1044570A Processing method of insulator induction electrode and it's coating material |
| 08/08/1990 | CN1044555A 定时器电路 Timer circuit |
| 08/07/1990 | US4947283 Solenoid drive circuit |
| 08/07/1990 | US4947282 Thyristor valve with improved gate pulse generating scheme |
| 08/07/1990 | US4947134 Lightwave systems using optical amplifiers |
| 08/07/1990 | US4947063 Method and apparatus for reducing transient noise in integrated circuits |
| 08/07/1990 | US4947058 TTL current sinking circuit with transient performance enhancement during output transition from high to low |
| 08/07/1990 | US4947055 Base drive circuit for Darlington-connected transistors |
| 08/02/1990 | DE4002328A1 Electronic timer with threshold switch - has integrator with switched continuously variable constant feeding operational amplifier comparator |
| 08/02/1990 | DE3902871A1 Automatic control of the operating point of radio-frequency field-effect transistors in keyed pulse mode |
| 08/01/1990 | EP0380078A2 Photoelectric switch |
| 08/01/1990 | EP0379984A2 Feed forward Darlington circuit with reduced NPN reverse beta sensitivity |
| 08/01/1990 | EP0379900A2 Circuit for one or several semiconductor valves with reverse direction blocking capability |
| 08/01/1990 | EP0379881A1 CMOS output driver |
| 08/01/1990 | EP0379732A2 Optical switch |
| 08/01/1990 | EP0379521A1 Bulk avalanche semiconductor switch using field compression. |
| 08/01/1990 | CN2060029U Automatic light-changing controller for illuminator |
| 08/01/1990 | CN2060010U Energy-saving switch for passageway of stairs |
| 08/01/1990 | CN1044364A Protection of power integrated circuits against load voltage surges |
| 07/31/1990 | USRE33285 Touch controlled switch for a lamp or the like |
| 07/31/1990 | US4945467 Multiple-mode voltage converter |
| 07/31/1990 | US4945445 Current sense circuit |
| 07/31/1990 | US4945358 Short circuit protection arrangement for a driver circuit |
| 07/31/1990 | US4945335 Electronic unit operable in conjunction with body unit |
| 07/31/1990 | US4945297 Electronic device forming a bidirectional interface for controlling a load switching power element |
| 07/31/1990 | US4945267 Integrated circuit bus switching circuit |
| 07/31/1990 | US4945266 Composite semiconductor device |
| 07/31/1990 | US4945264 Interface control circuit with active circuit charge or discharge |
| 07/31/1990 | US4945259 Bias voltage generator and method |
| 07/31/1990 | US4945226 Semiconductor photosensor and driving method therefor |
| 07/31/1990 | US4945225 Signal discriminator |
| 07/31/1990 | US4944270 Asymmetrical excitation type magnetic device and method of manufacture thereof |
| 07/31/1990 | CA2008130A1 Damping circuit configuration for one or more semiconductor valves with blocking ability in the reverse direction |
| 07/31/1990 | CA1272282A1 Method and device for controlling an electromagnet excited by a periodic current to operate a mobile element |
| 07/26/1990 | WO1990008429A1 Oscillator stabilized against variations in temperature for oscillating circuits |
| 07/26/1990 | WO1990008427A1 Base drive circuit for darlington connected transistors |
| 07/26/1990 | DE3901298A1 Push-pull circuit |
| 07/25/1990 | EP0379454A1 MOS power transistor circuit controlled by a device with two symmetrical charging pumps |
| 07/25/1990 | EP0379346A2 Power conversion unit and module for its construction |
| 07/25/1990 | EP0379320A1 Photocoupler circuit |
| 07/25/1990 | EP0379253A2 Keyboard for an electrical apparatus |
| 07/24/1990 | US4944002 Current switch for use in telephony systems or the like |
| 07/24/1990 | US4943761 Current limited DC power controller |
| 07/24/1990 | US4943742 Schottky barrier diode clamp transistor |
| 07/24/1990 | US4943741 ECL/CML emitter follower current switch circuit |
| 07/24/1990 | US4943712 Motion detector |
| 07/24/1990 | US4943556 Superconducting neural network computer and sensor array |
| 07/18/1990 | EP0378186A2 Output stage for an alternating voltage switch, in particular for an alternating voltage proximity switch |
| 07/18/1990 | EP0378179A2 Microwave proximity switch |
| 07/18/1990 | EP0378076A2 Switching circuit and its signal transmission method |
| 07/18/1990 | EP0377956A1 Row drive for EL panels and the like with transformer coupling |
| 07/18/1990 | EP0377955A1 Row drive for EL panels and the like with inductor coupling |
| 07/18/1990 | EP0377619A1 High-voltage switch and method to control user circuits by means of this switch. |
| 07/17/1990 | US4942372 Method and circuit for reduction of temperature dependency in an oscillator |
| 07/17/1990 | US4942320 Transistor circuit with improved α ray resistant properties |
| 07/17/1990 | US4942309 High side driver MOS circuit |
| 07/12/1990 | WO1990007825A1 Isolation circuit for pulse waveforms |
| 07/12/1990 | DE3900605A1 Movement signalling device |
| 07/11/1990 | CN2059287U Sight protector |
| 07/10/1990 | US4941153 High-speed digital data communication system |
| 07/10/1990 | US4941030 Semiconductor device |
| 07/10/1990 | US4940908 Method and apparatus for reducing critical speed path delays |
| 07/10/1990 | US4940906 Driver for converting input signals into binary output signals |
| 07/04/1990 | EP0376725A2 Circuit for discharging DC filter capacitors |
| 07/04/1990 | EP0376551A2 Solid state switch circuit |
| 07/04/1990 | EP0376409A2 Time switch |
| 07/04/1990 | EP0376383A1 Integrated circuit comprising a switchable current generator |
| 07/04/1990 | EP0375998A2 Low power transient suppressor circuit |
| 07/04/1990 | EP0343161A4 Solenoid driver control circuit with initial boost voltage. |
| 07/04/1990 | CN2059036U Touch type voltage regulation switch |
| 07/04/1990 | CN2059035U Self-protective driver for switching transistor |
| 07/03/1990 | US4939566 Semiconductor switch with parallel DMOS and IGT |
| 07/03/1990 | US4939499 Magnetic pole detecting Hall element |
| 07/03/1990 | US4939485 Microwave field effect switch |
| 07/03/1990 | US4939477 Output circuit having a terminal used for a plurality of signals |
| 07/03/1990 | US4939405 Piezo-electric vibrator pump |
| 07/03/1990 | US4939385 Reenergizing circuit for a MOS technology integrated circuit |
| 07/03/1990 | US4939382 Touch responsive power control system |
| 07/03/1990 | US4939375 Solid state relay with shield means |
| 07/03/1990 | US4939358 Switch apparatus including a pair of beam-type switches |
| 06/29/1990 | CA2005089A1 Circuit and method for discharging dc filter capacitors |
| 06/28/1990 | WO1990007126A1 Means and method for measuring inductance |
| 06/28/1990 | DE3936544A1 Protection circuit for power MOSFET - has switch across gate-source and responsive to drain and input voltages |
| 06/28/1990 | DE3842169A1 Circuit arrangement with an FET output stage |
| 06/28/1990 | DE3842080A1 Circuit arrangement for a room-monitoring infrared detector having at least two coupled detectors |
| 06/27/1990 | EP0375037A2 Protection of power integrated circuits against load voltage surges |
| 06/27/1990 | EP0374968A2 Switching circuit |
| 06/27/1990 | EP0374490A2 A voltage comparator circuit for intergrated circuit drivers of inductive electric loads |
| 06/27/1990 | EP0374412A2 Improved series resonant inverter with lossless snubber-resetting components |
| 06/26/1990 | US4937789 Memory integrated circuit with an improved stand-by mode control circuit |
| 06/26/1990 | US4937757 Digital circuit interrupter with selectable trip parameters |
| 06/26/1990 | US4937726 High forward blocking voltage protection circuit |
| 06/26/1990 | US4937702 Light intensity controller using a proximity sensor |
| 06/26/1990 | US4937697 Semiconductor device protection circuit |
| 06/26/1990 | US4937672 Audio switching for an audio/video system having S-VIDEO capability |