Patents
Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158)
01/1989
01/18/1989CN2031080U Intellectual faculties ignitor
01/17/1989US4799126 Overload protection for D.C. circuits
01/17/1989US4799044 Phototransistor apparatus with current injection ambient compensation
01/17/1989US4799043 For sensing a particular condition
01/17/1989US4798983 Driving circuit for cascode BiMOS switch
01/17/1989US4798975 High noise immunity input level detector with hysteresis
01/17/1989US4798973 High frequency charge pump/integrator circuit
01/17/1989US4798935 Driver circuit
01/17/1989US4798435 Optical switch circuit
01/17/1989CA1249046A1 Solid state keyboard
01/12/1989WO1989000362A1 Cmos input buffer receiver circuit
01/12/1989WO1989000360A1 Programmable switching transistor circuit
01/11/1989EP0298741A2 Driver circuit
01/11/1989EP0298737A1 Solenoid drive circuit
01/11/1989EP0298581A2 Phase comparator insensitive to clock asymmetry
01/11/1989EP0298515A1 Gate signal generator for thyristor valve
01/11/1989EP0298331A2 Electronic switching device operating without contact
01/11/1989EP0298330A2 Electronic switching device, preferably operating without contact
01/11/1989EP0298329A2 Electronic switching device, preferably operating without contact
01/11/1989EP0298215A1 Generator of reset pulses upon the rise of the power supply for cmos-type integrated circuits
01/11/1989CN2030779U Touching delay-action switch
01/11/1989CN2030757U 电源控制开关 Power Control Switch
01/11/1989CN1003068B Switching power supply
01/10/1989US4797587 Triggering method for a thyristor switch
01/10/1989US4797586 Controllable delay circuit
01/10/1989US4797584 Power-on reset circuit for MOS logic devices
01/10/1989US4797579 CMOS VLSI output driver with controlled rise and fall times
01/10/1989US4797571 Contact type image sensor
01/10/1989CA1248583A1 Power switching circuit
01/05/1989DE3721059A1 Switch arrangement
01/04/1989EP0297932A2 Bus transmitter having controlled trapezoidal slew rate
01/04/1989EP0297778A2 Apparatus including resonant-tunneling device having multiple-peak current-voltage characteristics
01/04/1989EP0297623A2 Switching system for capacitor charging/discharging
01/04/1989EP0297276A1 Generator circuit
01/04/1989CN2030395U Silicon controlled current-shockless switch
01/04/1989CN2030343U Quartz clock with light-controlled chronopher
01/04/1989CN2030325U Multi-functional light-control device for digital microammeter
01/03/1989US4796174 Direct voltage multiplier capable of being integrated into a semiconducting structure
01/03/1989US4796145 Semiconductor module
01/03/1989US4795984 Multi-marker, multi-destination timing signal generator
01/03/1989US4795980 Device for monitoring short circuits and overloads in electronic proximity switches
01/03/1989US4795923 Adjustable delay circuit
01/03/1989US4795920 Method and apparatus for sourcing and sinking current
01/03/1989US4795917 Low power high voltage driver circuit
01/03/1989US4795916 Low power differential ECL line driver
01/03/1989US4795883 Aroma generating apparatus and driver circuit
12/1988
12/29/1988WO1988010535A1 Alternating voltage commutator
12/29/1988DE3719747A1 Integrated multiplexer arrangement for high switching speeds
12/28/1988EP0296930A1 Power-on reset circuit for integrated circuit in MOS-technology
12/28/1988EP0296675A2 An integrated circuit with a protection device utilizing one or more subsurface diodes and associated method of manufacture
12/28/1988EP0296528A1 Electrical power pulse generator with stepwise temporal compression particularly for discharge laser
12/28/1988EP0296508A2 FET capacitance driver logic circuit
12/28/1988EP0296193A1 Ttl compatible cmos input circuit.
12/28/1988CN88211677U Power saving electronic delay switch
12/27/1988US4794552 Signal synthesizer
12/27/1988US4794441 Semiconductor switch circuit
12/27/1988US4794282 TTL to CMOS voltage level translator
12/27/1988US4794280 Darlington bicmos driver circuit
12/27/1988US4794275 Multiple phase clock generator
12/27/1988US4794274 Circuit arrangement for removing carriers in a transistor
12/20/1988US4792885 Control device of the transistor bases of an inverter arm
12/20/1988US4792879 Mounting structure for electric and electronic circuit elements
12/20/1988US4792764 Noncontact electronic switching arrangement
12/20/1988US4792746 Non-dissipative series voltage switching regulator having improved switching speed
12/20/1988US4792705 Fast switching charge pump
12/20/1988US4792052 Apparatus for controlling the number of revolutions of an engine
12/20/1988CA1247201A1 Assist circuit for a data bus in a data processing system
12/15/1988WO1988010031A1 Cmos threshold circuit
12/15/1988WO1988010029A1 Control systems and methods for controlling controlled semiconductor switching devices
12/15/1988WO1988009862A1 Proximity detection systems
12/15/1988DE3815471A1 Low-loss circuit for at least one switchable valve
12/14/1988EP0295006A2 An optical sensor
12/14/1988EP0295001A2 CMOS integrated circuit fan-in logic tree layout arrangement
12/14/1988EP0294887A2 Driving a semiconductor device
12/14/1988EP0294882A2 High voltage semiconductor with integrated low voltage circuitry
12/14/1988EP0294881A2 A semiconductor device and a circuit suitable for use in an intelligent power switch
12/13/1988US4791521 Method and apparatus for reducing transient noise by premagnetization of parasitic inductance
12/13/1988US4791382 For amplifying current of an input signal
12/13/1988US4791365 Position responsive control signal generator having relatively movable sensor and magnetic flux concentrators
12/13/1988US4791350 Current regulated switching regulator for gating gate turnoff devices
12/13/1988US4791325 For providing a fixed reference voltage
12/13/1988US4791321 CMOS output circuit device
12/13/1988US4791314 Oscillation-free, short-circuit protection circuit
12/13/1988US4791257 Key element for a contactless keyboard
12/13/1988CA1246669A1 Transformerless drive circuit for field-effect transistors
12/08/1988DE3717932A1 Protective sleeve for the active end face of a proximity sensor
12/07/1988EP0294203A2 A fully integrated high-speed voltage controlled ring oscillator
12/07/1988CN87202753U Double delay time relay
12/06/1988US4789917 MOS I/O protection using switched body circuit design
12/06/1988US4789846 Microwave semiconductor switch
12/06/1988US4789842 Composite transistor device with over-current protection
12/06/1988US4789796 Output buffer having sequentially-switched output
12/06/1988US4789794 Time domain reflectometer
12/06/1988US4789793 Integrated FET circuit to reduce switching noise
12/06/1988US4789778 Two terminal light barrier system
12/06/1988CA1246159A1 Transmission gates with compensation
12/06/1988CA1246158A1 Sample-and-hold circuit arrangement
12/01/1988DE3717488A1 Turn-off limiting network for inverters with GTO thyristors
12/01/1988DE3717482A1 Method and circuit arrangement for driving a GTO thyristor
12/01/1988DE3716825A1 DC/DC single-ended forward converter