| Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158) |
|---|
| 06/26/1990 | US4937647 SCR-DMOS circuit for driving electroluminescent displays |
| 06/26/1990 | US4937646 MOSFET with temperature protection |
| 06/26/1990 | US4937642 Bidirectional MOS switch |
| 06/26/1990 | US4937478 Circuit configuration for low-distortion signal switching |
| 06/26/1990 | US4937476 Self-biased, high-gain differential amplifier with feedback |
| 06/26/1990 | US4937472 Sampling-holding circuit with high sampling frequency |
| 06/26/1990 | US4937470 Driver circuit for power transistors |
| 06/26/1990 | US4937469 Switched current mode driver in CMOS with short circuit protection |
| 06/26/1990 | US4937468 Isolation circuit for pulse waveforms |
| 06/26/1990 | US4937443 Photoelectric ambient light switch with ambient light sensing means |
| 06/26/1990 | US4937441 Diagnosis apparatus for photo coupler and photo coupler device with diagnosis function |
| 06/21/1990 | DE3901678A1 Proximity switch with magnetic-field-sensitive sensor |
| 06/20/1990 | EP0373803A2 R. F. switching circuits |
| 06/20/1990 | EP0373794A2 Driver circuit for in circuit tester |
| 06/20/1990 | EP0373694A1 Diagnostic circuit for units providing current control and protection against excessive heat dissipation for semiconductor power devices |
| 06/20/1990 | EP0373693A2 Generator of drive signals for transistors connected in a half-bridge configuration |
| 06/20/1990 | EP0373620A2 Signal distributing unit for various input signals different in voltage level |
| 06/20/1990 | EP0373240A1 Self regulating driver circuit with saturation level regulation for the base current of a power transistor |
| 06/20/1990 | CN2058544U Touching type contactless switch with outage self-lock function |
| 06/20/1990 | CN2058543U Three-phase power solid-state contactor |
| 06/20/1990 | CN2058542U Touching time-delay contactless switch |
| 06/20/1990 | CN2058453U Industrial art electronic music candle |
| 06/19/1990 | US4935734 Semi-conductor integrated circuits/systems |
| 06/19/1990 | US4935698 Sensor having dual Hall IC, pole piece and magnet |
| 06/19/1990 | US4935621 Optical switch with collimating lenses, antifreeze and/or index matching fluid for control of electrical equipment |
| 06/14/1990 | WO1990006659A1 Switch components and multiple data rate non-blocking switch network utilizing the same |
| 06/14/1990 | WO1990006611A1 Inverter with proportional base drive controlled by a current transformer |
| 06/13/1990 | EP0372984A2 Microwave field effect device |
| 06/13/1990 | EP0372842A2 Complementary circuit device returnable to normal operation from latch-up phenomenon |
| 06/13/1990 | EP0372820A2 Semiconducteur device having high energy sustaining capability and a temperature compensated sustaining voltage |
| 06/13/1990 | EP0372273A2 Pass gate multiplexer |
| 06/13/1990 | EP0372087A1 Driver circuit |
| 06/13/1990 | CN2058296U Auto-controlling switch for illumination lamp |
| 06/13/1990 | CN2058295U Street lamp auto-controller |
| 06/13/1990 | CN2058272U Power witch being able to regulating voltage timely |
| 06/13/1990 | CN2058228U Light intensity adjustable glass lantern with touch control device |
| 06/13/1990 | CN1043035A Circuitry for reversing magnetic field |
| 06/13/1990 | CA2005184A1 Diagnostic circuit for units providing current control and protection against excessive heat dissipation for semiconductor power devices |
| 06/12/1990 | US4933806 Method and device for controlling an electromagnet whose energization, by means of a monoarch periodic current, causes actuation of a mobile part |
| 06/12/1990 | US4933805 Circuit for controlling inductive loads, particularly for the operation of the electro-injectors of a diesel-engine |
| 06/12/1990 | US4933627 Constant voltage generating circuit for selectively generating a constant voltage at a high-speed |
| 06/12/1990 | US4933625 Driving circuit for controlling output voltage to be applied to a load in accordance with load resistance |
| 06/12/1990 | US4933622 Circuit and method for discharging DC filter capacitors |
| 06/12/1990 | US4933579 Output circuit for a semiconductor device for reducing rise time of an output signal |
| 06/12/1990 | US4933574 BiCMOS output driver |
| 06/12/1990 | US4933573 Semiconductor integrated circuit |
| 06/12/1990 | US4933542 High speed photodetector having dual transmission line geometry |
| 06/12/1990 | CA1270299A1 Transistor drive circuit |
| 06/12/1990 | CA1270298A1 Switching power supply |
| 06/09/1990 | CA2005030A1 Microwave field effect device |
| 06/07/1990 | DE3840824A1 Self-commutating converter circuit and method for operating it |
| 06/06/1990 | EP0371928A2 Protection of power converters from voltage spikes |
| 06/06/1990 | EP0371814A2 Light-sensitive semiconductor device |
| 06/06/1990 | EP0371663A1 Integrated circuit output buffer having improved ESD protection |
| 06/06/1990 | EP0371489A2 Oscillation circuit for proximity switch |
| 06/06/1990 | EP0371261A2 Method for inductively generating electric measuring signal for determining the park and/or position and/or material properties of a test sample, proximity sensor constructed according to this method and its use as a proximity switch |
| 06/06/1990 | EP0371033A1 High-voltage switch |
| 06/06/1990 | EP0243403B1 Rfi suppression technique for switching circuits |
| 06/06/1990 | CA2004582A1 Motion detector |
| 06/05/1990 | US4932027 Single-level multiplexer |
| 06/05/1990 | US4931794 Optoelectronic keyboard |
| 06/05/1990 | US4931719 Hall-effect sensor arrangement |
| 06/05/1990 | US4931676 Low-absorption circuit device for controlling a power transistor into the on state |
| 06/05/1990 | US4931668 MIS transistor driven inverter circuit capable of individually controlling rising portion and falling portion of output waveform |
| 06/05/1990 | US4931666 Darlington-connected semiconductor device |
| 06/05/1990 | US4931656 Means to dynamically discharge a capacitively charged electrical device |
| 06/05/1990 | CA1270068A1 Adaptable selection and profiling of coil currents for multiple actuator assembly |
| 06/05/1990 | CA1270057A1 Method and device for controlling an electromagnet exited by an alternating current to establish contact between two elements |
| 06/05/1990 | CA1270054A1 Broadband signal space switching apparatus |
| 05/31/1990 | WO1990006020A1 Gallium arsenide antenna switch |
| 05/31/1990 | WO1990005980A1 Circuit for reversing a magnetic field |
| 05/31/1990 | WO1990005918A2 Universal output circuit |
| 05/30/1990 | EP0370896A1 Power interrupting device, particularly for a frequency convertor |
| 05/30/1990 | EP0370737A2 Low voltage inhibit control apparatus |
| 05/30/1990 | EP0370377A2 Inductive proximity sensor |
| 05/30/1990 | CN2057794U Magnetic electric saving switch |
| 05/30/1990 | CN2057793U Active fast protecting device for switch power supply |
| 05/30/1990 | CN2057777U Time-delay/timing type remanence contactor |
| 05/29/1990 | US4930037 Input voltage protection system |
| 05/29/1990 | US4929932 Solid state relay having visual contact monitor |
| 05/29/1990 | US4929911 Push-pull output circuit having three transistors |
| 05/29/1990 | US4929884 For controlling a load in an electrical system |
| 05/29/1990 | US4929883 Circuit for sensing the transistor current waveform |
| 05/29/1990 | US4929856 Heavy-duty circuit breaker |
| 05/29/1990 | US4929855 High frequency switching device |
| 05/29/1990 | US4929815 Heating resistor driving circuit which suppresses current spikes |
| 05/29/1990 | CA1269761A1 Hall effect device with means for providing temperature independent sensitivity |
| 05/29/1990 | CA1269746A1 Water supply control apparatus |
| 05/29/1990 | CA1269726A1 Semi-conductor integrated circuits/systems |
| 05/23/1990 | EP0369954A1 Multipurpose, internally configurable integrated circuit for driving in a switching mode external inductive loads according to a selectable connection scheme |
| 05/23/1990 | EP0369448A2 Drive circuit for use with voltage-driven semiconductor device |
| 05/23/1990 | EP0369405A2 Bus driver integrated circuit and a clocked inverter for use therein |
| 05/23/1990 | EP0369180A2 A circuit device, made up of a reduced number of components, for simultaneously turning on a plurality of power transistors |
| 05/23/1990 | EP0369055A1 Noise signal compensation circuit |
| 05/23/1990 | EP0369050A1 Method of suppression of interfering signals in the operation of an ultrasonic proximity switch |
| 05/23/1990 | EP0369048A1 Circuit arrangement for regulating the load current in a power MOSFET |
| 05/23/1990 | EP0369021A1 Output circuit |
| 05/23/1990 | EP0208970B1 Mofset having a thermal protection |
| 05/23/1990 | DE3839156A1 Circuit arrangement for driving a series circuit of a bipolar transistor and a MOS field effect transistor |
| 05/22/1990 | US4928248 Light source driving device |