| Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158) |
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| 02/27/1991 | CN2072297U Conducting rubber button electronic switch |
| 02/27/1991 | CN1011843B Laser arrangement with high-tension pulse generator and method of generating pulse |
| 02/26/1991 | US4996577 Photovoltaic isolator and process of manufacture thereof |
| 02/26/1991 | US4996495 Method and apparatus for generating pulsed RF power |
| 02/23/1991 | CA2010933A1 Fet bridge protection circuit |
| 02/20/1991 | CN2071858U Time-delay self-cut-off for staircase lamp |
| 02/19/1991 | US4994955 Half-bridge driver which is insensitive to common mode currents |
| 02/19/1991 | US4994891 Shielded transistor device |
| 02/19/1991 | US4994886 Composite MOS transistor and application to a free-wheel diode |
| 02/19/1991 | US4994738 Proximity switch for detecting a magnetic inductive field |
| 02/19/1991 | US4994731 Vehicle engine |
| 02/19/1991 | US4994696 Turn-on/off driving technique for insulated gate thyristor |
| 02/19/1991 | US4994694 Complementary composite PNP transistor |
| 02/19/1991 | US4994689 Semiconductor integrated circuit device |
| 02/19/1991 | US4994669 Opto-electrical joystick switch having a resilient, rigidly mounted central shaft |
| 02/19/1991 | US4993396 Method for driving an insulated gate semiconductor device |
| 02/19/1991 | US4993395 High-voltage opto-electronic switching circuit |
| 02/19/1991 | CA1280523C Signal processing circuits |
| 02/19/1991 | CA1280471C Electrical supply |
| 02/16/1991 | WO1991003103A1 Switching devices |
| 02/14/1991 | DE3926083A1 Temp. stabilised inductive proximity switch |
| 02/13/1991 | EP0412567A2 Integrable transistor switching stage with adjustable switching threshold |
| 02/13/1991 | CN2071413U Double jiont single line serkes connection soft start power saving switch |
| 02/13/1991 | CN2071412U Acousto-optic controlled electronic power saving device for incandescent lamp |
| 02/13/1991 | CN2071411U Light controller for road lamps |
| 02/13/1991 | CN2071403U Multifunctional contact control switch |
| 02/13/1991 | CN2071402U 多功能时间控制器 Multifunction time controller |
| 02/12/1991 | US4993033 High power fast switch |
| 02/12/1991 | US4992924 Switching |
| 02/12/1991 | US4992844 Semiconductor device |
| 02/12/1991 | US4992836 Device for controlling the electrical supply to a load, in a "smart" power integrated circuit |
| 02/12/1991 | US4992683 Load driver with reduced dissipation under reverse-battery conditions |
| 02/12/1991 | US4992682 Clock drive circuit |
| 02/12/1991 | US4992677 High speed MOSFET output buffer with low noise |
| 02/12/1991 | CA1280177C Phase comparator insensitive to clock asymmetry |
| 02/07/1991 | WO1991001596A1 Ultrasonic remote controlled switching device |
| 02/07/1991 | WO1991001447A1 Monitoring device for an ignition end stage in an internal combustion engine |
| 02/07/1991 | WO1990016045A3 Finger operable control devices |
| 02/06/1991 | EP0411269A2 Cmos latch circuit |
| 02/06/1991 | CN2070969U Magnetic induction type reading lamp with slave lamp |
| 02/06/1991 | CN2070946U 自停开关 Since the stop switch |
| 02/05/1991 | US4990797 Reference voltage distribution system |
| 02/05/1991 | CA1279907C Bidirectional buffer amplifier |
| 01/31/1991 | DE3924129A1 Ueberwachungseinrichtung fuer eine zuendungsendstufe an einer brennkraftmaschine A monitoring device for an internal combustion engine in a zuendungsendstufe |
| 01/30/1991 | EP0410908A1 Cross-point for switching matrix |
| 01/30/1991 | EP0410853A1 Power mos motor control with current mirror |
| 01/30/1991 | EP0410327A2 Equipment for enhancing turnoff of a semiconductor switch with inductive load |
| 01/30/1991 | EP0410188A2 Circuit arrangement for protecting a clocked semi-conductor switch |
| 01/30/1991 | EP0410123A2 Method and resulting device for compensating for process variables in a CMOS device driver circuit |
| 01/30/1991 | EP0410001A1 Feed water controller |
| 01/30/1991 | CN2070516U Domestic electric appliances intermittence controller |
| 01/29/1991 | WO1991002268A1 Electrical switching system |
| 01/29/1991 | US4989127 Driver for high voltage half-bridge circuits |
| 01/29/1991 | US4988902 Semiconductor transmission gate with capacitance compensation |
| 01/29/1991 | US4988896 High speed CMOS latch without pass-gates |
| 01/29/1991 | US4988895 Comparator circuit |
| 01/29/1991 | US4988894 Power supply switching circuit |
| 01/29/1991 | CA2053314A1 Electrical switching system |
| 01/24/1991 | DE4020811A1 DC voltage supply circuitry using parallel switching devices |
| 01/23/1991 | EP0409747A1 MOS transistor gate control circuit |
| 01/23/1991 | EP0409448A2 Operational amplifier having selectable inputs |
| 01/23/1991 | EP0409384A2 Method and apparatus for achieving current balance in parallel connected switching devices |
| 01/23/1991 | EP0409374A2 A Microwave or Millimetre Wave Circuit |
| 01/23/1991 | EP0409328A2 A switched bridge circuit |
| 01/23/1991 | EP0409158A1 Substrate injection clamp |
| 01/23/1991 | EP0408797A1 Coupling device for broadband signals |
| 01/23/1991 | EP0408778A1 Zero-crossing detector for an optically controlled thyristor |
| 01/23/1991 | EP0144344B1 Ringing signal generator |
| 01/23/1991 | CN2070071U Automatic zeroloss delay-action circuit breaker |
| 01/23/1991 | CN2070063U Full protection electronic switching |
| 01/23/1991 | CN2070062U Delay-action circuit breaker of resistor with positive temperature coefficient |
| 01/23/1991 | CN2070061U Electric locking device for power supply |
| 01/23/1991 | CN2070060U Full-protection electronic switching |
| 01/22/1991 | US4987389 Lockproof low level oscillator using digital components |
| 01/22/1991 | US4987366 Oscillator damped test and evaluation circuit for a proximity switch |
| 01/22/1991 | US4987362 Self-regulating drive circuit for the base current of a power transistor with saturation level control |
| 01/22/1991 | US4987348 Bilevel current limiter |
| 01/22/1991 | US4987324 High-speed CMOS buffer with controlled slew rate |
| 01/22/1991 | CA1279369C Electrical system utilizing a concentric collector pnp transistor |
| 01/21/1991 | CA2021468A1 Broadband signal switching network |
| 01/17/1991 | DE4015912A1 Photoelectric switch emitting light pulse signal |
| 01/16/1991 | EP0407938A2 Circuit for protecting electrical equipment against overvoltage |
| 01/16/1991 | EP0407635A1 Circuit arrangement for controlling a thyristor by a phototransistor |
| 01/16/1991 | CN2069634U Integrated touching time-delay electricity-saving switch |
| 01/16/1991 | CN1048637A Self-adaptive switch |
| 01/15/1991 | US4985818 DC voltage converter with formation of the actual current value |
| 01/15/1991 | US4985703 Analog multiplexer |
| 01/15/1991 | US4985647 CMOS transfer switch free from malfunction on noise signal |
| 01/15/1991 | US4985646 Output buffer circuit of semiconductor integrated circuit |
| 01/15/1991 | US4985645 BiCMOS logic circuit having a rapid output voltage falling-down property |
| 01/15/1991 | US4985641 Semiconductor integrated circuit device having selectable operational functions |
| 01/15/1991 | US4985621 Electrooptical switch with separate detector and modulator modules |
| 01/10/1991 | WO1991000650A1 Bi-cmos clock driver with reduced crossover current |
| 01/10/1991 | WO1991000649A1 Programmable delay circuit |
| 01/10/1991 | WO1991000621A1 Light-emitting diode drive circuit |
| 01/10/1991 | WO1991000606A1 Ac power switching device |
| 01/10/1991 | DE4017731A1 Opto electric pulse convertor esp. for photographic flash - is based on phototransistor delivering HF AC to emitter follower with base AC short-circuit |
| 01/10/1991 | DE3920957A1 Piezoelectric foil as appts. coating - surrounds appts. completely and responds to touching contact |
| 01/09/1991 | EP0407195A2 Gradient current speed-up circuit for NMR system |
| 01/09/1991 | EP0406930A1 Switching circuit, notably for a sample and hold circuit |