| Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158) |
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| 02/21/1990 | CN2053408U Electronic timing switch |
| 02/21/1990 | CN2053401U Automatic power switch of multivibrating dc-to-ac convertor |
| 02/21/1990 | CN2053373U Switch for elongating service life of illuminating, delaying and saving energy |
| 02/20/1990 | US4903260 Digital circuit-switching and packet-switching network and switching facility therefor |
| 02/20/1990 | US4903189 Low noise, high frequency synchronous rectifier |
| 02/20/1990 | US4903182 Self-oscillating converter with light load stabilizer |
| 02/20/1990 | US4903106 Semiconductor power device integrated with temperature protection means |
| 02/20/1990 | US4902921 Drive circuit for driving cascode bipolar-MOS circuit |
| 02/20/1990 | US4902919 Inverting latching bootstrap driver with Vdd *2 booting |
| 02/20/1990 | US4902915 BICMOS TTL input buffer |
| 02/20/1990 | US4902910 Semiconductor device |
| 02/20/1990 | US4902907 Reset signal generating circuit |
| 02/20/1990 | US4902901 High-power solid state relay employing photosensitive current augmenting means for faster turn-on time |
| 02/20/1990 | CA1266106A1 Electromechanical abutment sensor |
| 02/15/1990 | DE3540551C1 Semiconductor module for fast switching arrangement |
| 02/14/1990 | EP0354735A2 Constant voltage generating circuit for selectively generating a constant voltage at a high-speed |
| 02/14/1990 | EP0354547A1 Regulator of power source for superconducting circuit |
| 02/14/1990 | EP0354478A1 Gate-source protection circuit for power MOSFET |
| 02/14/1990 | EP0354435A2 A drive circuit for an insulated gate transistor; and its use in a switching circuit, a current switching apparatus and an induction motor system |
| 02/14/1990 | EP0354357A2 Delay device |
| 02/14/1990 | EP0354311A2 Direct generation of ultrafast electrical pulses |
| 02/14/1990 | EP0354254A1 Coupling device for broad-band signals |
| 02/14/1990 | EP0354253A1 Coupling device for broad-band signals |
| 02/14/1990 | EP0354252A1 Coupling device for broad-band signals |
| 02/14/1990 | CN2053003U Simple touching type self time delay switch |
| 02/14/1990 | CN2053002U Automatic switch controller for photoelectric lamp |
| 02/14/1990 | CN2052992U Electricity saving safety switch |
| 02/14/1990 | CN2052991U Wine restriction self locking device |
| 02/14/1990 | CN2052947U Anti-shaking timedelay cut-off relay |
| 02/14/1990 | CN1039666A Current limited dc power controller |
| 02/13/1990 | US4901191 Monolithically integratable, low power dissipation control circuit for switching inductive loads |
| 02/13/1990 | US4900955 Voltage sharing circuit |
| 02/13/1990 | US4900951 Latch-up restoration circuit |
| 02/13/1990 | US4900950 Power on reset circuit for a MOS technology integrated circuit |
| 02/13/1990 | US4900947 Asynchronous marx generator utilizing photo-conductive semiconductor switches |
| 02/13/1990 | US4900925 Acceleration sensor pick-up with magnetic base stabilization |
| 02/13/1990 | CA1265880A1 Safety system for closing doors |
| 02/08/1990 | WO1990001248A1 A circuit arrangement for a power supply unit |
| 02/08/1990 | WO1990001216A1 Speed-up circuit for npn bipolar transistors |
| 02/08/1990 | WO1990001173A1 Detection circuitry |
| 02/08/1990 | DE3913175A1 Time switch (timing circuit) device |
| 02/08/1990 | DE3826284A1 Overcurrent protection with status message in a floating drive circuit of an insulated-gate transistor |
| 02/08/1990 | DE3822167A1 Light barrier |
| 02/07/1990 | EP0353765A2 Solenoid drive circuit |
| 02/07/1990 | EP0353406A1 High-voltage switch |
| 02/07/1990 | EP0353403A1 Modulating amplifier for high voltages |
| 02/07/1990 | CN2052593U Automatic time-delay lamps and lanterns with sound control |
| 02/06/1990 | US4899353 Initial value setting system for electronic device |
| 02/06/1990 | US4899138 Touch panel control device with touch time and finger direction discrimination |
| 02/06/1990 | US4899114 Voltage source amplifier for use in a pseudoternary code transmitter |
| 02/06/1990 | US4899065 For on/off control of a switching transistor element |
| 02/06/1990 | US4899063 Power window switch for an automobile |
| 02/01/1990 | DE3825474A1 Proximity switch |
| 01/31/1990 | EP0352828A2 Control circuit for the clamping voltage of an inductive load drive by a power device in a high side driver configuration |
| 01/31/1990 | EP0352769A2 Input protection circuit for MOS device |
| 01/31/1990 | EP0352758A2 Method and circuit configuration for detecting rapid damping changes with a proximity switch |
| 01/31/1990 | EP0352659A2 Circuit for determining shorts in a load in series with a FET |
| 01/31/1990 | EP0352516A2 Integrated power transistor comprising means for reducing thermal stresses |
| 01/31/1990 | CN2052181U Multifunctional light-control powere economizer |
| 01/31/1990 | CN2052179U Touching stepless light-modulating lamps and lanterns |
| 01/31/1990 | CN2052169U Switch controlled by "magic" rod |
| 01/31/1990 | CN2052168U Switch controlled by whistling sound |
| 01/31/1990 | CN2052167U Energy-saving delay-action circuit breaker |
| 01/31/1990 | CN2052166U Automatic timing switch |
| 01/30/1990 | US4897836 Programmable connection path circuit |
| 01/30/1990 | US4897822 PLL sonic bilge pump switch |
| 01/30/1990 | US4897706 Thyristor protected against breakover firing |
| 01/30/1990 | US4897645 Broadband signal switching equipment |
| 01/30/1990 | US4897580 Amplifier drive circuit for inductive loads |
| 01/30/1990 | US4897563 N-way MMIC redundant switch |
| 01/30/1990 | US4897560 Semiconductor integrated circuit with reduced power consumption |
| 01/30/1990 | US4897558 Superconducting device, apparatus and method for selectively supplying current to a load |
| 01/30/1990 | US4897557 Electronic control system, in particular for a printer |
| 01/30/1990 | US4897544 Signal processor of pulse encoder |
| 01/30/1990 | CA1265215A1 Scr priming and sweep-out circuit apparatus |
| 01/30/1990 | CA1265192A1 Dc voltage multiplier that can be incorporated into a semiconducting structure |
| 01/30/1990 | CA1265186A1 Apparatus for compensating a quantization error |
| 01/25/1990 | WO1990000835A1 Signal conditioning device |
| 01/25/1990 | WO1990000834A1 Ccd clock driver circuit |
| 01/25/1990 | DE3910466A1 Data output buffer circuit for byte-wide memory |
| 01/24/1990 | EP0352238A2 Inductive load discharge current recirculation circuit with selectable "fast" and "slow" modes |
| 01/24/1990 | EP0352137A2 Pulse-width modulator and driving unit using the same |
| 01/24/1990 | EP0352044A1 Transistor base current compensation circuitry |
| 01/24/1990 | EP0351898A2 Inductance and capacitance charge pump circuit for driving power MOS transistor bridges |
| 01/24/1990 | EP0351874A2 Output circuit |
| 01/24/1990 | EP0351634A2 Semiconductor circuit for fast switching processes |
| 01/24/1990 | EP0135504B1 Substrate bias control circuit and method |
| 01/24/1990 | CN2051805U Magnetic induced, contactless keyboard switch |
| 01/24/1990 | CN2051804U Proximity switch adopting cmos integrated circuit |
| 01/24/1990 | CN2051803U Proximate touch adjustable induction switch |
| 01/24/1990 | CN2051802U Automatic circulating and timing controller for household electrical appliances |
| 01/24/1990 | CN2051799U Touch type, energy saving voltage regulating switch |
| 01/24/1990 | CN1039130A Solid state power controller |
| 01/23/1990 | US4896333 Circuit for generating a trapezoidal current waveform with matched rise and fall times |
| 01/23/1990 | US4896254 Protective power controller |
| 01/23/1990 | US4896245 FET overtemperature protection circuit |
| 01/23/1990 | US4896069 Piezoelectric switch |
| 01/23/1990 | US4896061 GaAs analog switch cell with wide linear dynamic range from DC to GHz |
| 01/23/1990 | US4896058 TTL circuit having ramped current output |
| 01/23/1990 | US4896056 Semiconductor IC including circuit for preventing erroneous operation caused by power source noise |