H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking

Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158)
12/1993
12/23/1993	DE4217234C1 Voltage limiting circuit for current cut=out electronic extinction device - has parallel circuit across extinction capacitor limiting capacitor voltage using nonlinear resistance and GTO thyristor
12/22/1993	EP0575131A1 Control device for thyristor converter
12/22/1993	EP0574911A2 Semiconductor device for driving heat generator
12/22/1993	EP0574815A1 Bi-directional load current drive circuit
12/22/1993	EP0574646A1 A circuit for controlling the maximum current in a power-MOS transistor used for driving a load connected to ground
12/22/1993	CN2150697Y Automatic light-putting-out energy-saving switch
12/22/1993	CN2150678Y Infra-red anti-exploding switch
12/22/1993	CN2150677Y Magnetic core for contactless switch
12/22/1993	CN2150650Y Multifunction safety controller for power supply
12/22/1993	CN2150646Y Loaded automatic current-delivery device
12/22/1993	CN1023277C Voltage type electronic relay
12/21/1993	US5272523 Matrix circuit for separating color signal of a video camera into color-difference signals
12/21/1993	US5272432 DAC current source with stabilizing bias
12/21/1993	US5272399 Circuit limiting the load current of a power MOSFET
12/21/1993	US5272398 Driver for power field-controlled switches with refreshed power supply providing stable on/off switching
12/21/1993	US5272393 Voltage converter of semiconductor device
12/21/1993	US5272392 Current limited power semiconductor device
12/21/1993	US5272390 Method and apparatus for clock skew reduction through absolute delay regulation
12/21/1993	US5272387 Connecting device of an external electrical power supply source to an aircraft on the ground
12/21/1993	US5272383 Method and apparatus for preventing erroneous operation in non-contact push-button switch
12/16/1993	DE4219011A1 Two-wire AC switch for AC load - uses electronic switching device with electronic control stage supplied via capacitive auxiliary voltage source
12/15/1993	EP0574184A2 High speed CMOS output buffer circuits
12/15/1993	EP0574168A2 High speed CMOS bus driver circuits
12/15/1993	EP0574070A1 Interface circuit for linking microprocessors
12/15/1993	EP0573965A2 Semiconductor device having bonding optional circuit
12/15/1993	EP0573836A2 Electric power converter
12/15/1993	CN2149726Y Transistor type double-key single-handle switch
12/15/1993	CN2149725Y Electronic time-delay switch
12/14/1993	US5270913 Compact and efficient transformerless power conversion system
12/14/1993	US5270710 Switch device with operating modes of capacitive proximity and mechanical actuation
12/14/1993	US5270585 Output driver stage with two tier current limit protection
12/14/1993	US5270577 Input module
12/14/1993	US5270541 Multiple photoelectric switch apparatus
12/09/1993	WO1993025004A1 A touch-sensitive switching array
12/09/1993	WO1993025003A1 Sub-nanoscale electronic systems, devices and processes
12/09/1993	DE4307350C1 Cable termination for electronic proximity switch - has cylindrical support receiving cable conductor termination block and cooperating with inner and outer cable end sleeves
12/09/1993	CA2134755A1 Sub-nanoscale electronic systems, devices and processes
12/08/1993	EP0573213A1 ESD protection of output buffers
12/08/1993	EP0572871A1 Piezoelectric key switch
12/08/1993	EP0572706A1 Control circuit for a power-FET with a load connected to its source
12/08/1993	EP0572567A1 Phase-controlled power modulation system
12/08/1993	CN2149080Y Electric controller for illuminating lamplight
12/08/1993	CN2149077Y Automatic temperature controlling apparatus
12/08/1993	CN2149064Y Safety electric relay for refrigerator and freezer
12/08/1993	CN2149063Y Micro-delayed action
12/07/1993	US5268872 Semiconductor integrated circuit capable of compensating errors in manufacturing process
12/07/1993	US5268597 Output buffer circuit with noise reduction circuit
12/07/1993	US5268588 Semiconductor structure for electrostatic discharge protection
12/07/1993	US5267545 Method and apparatus for controlling the operation of a solenoid
12/02/1993	DE4217305A1 Level detecting switch for use with liquid, granular or powder materials - has probe with electrode and dielectric body enclosed by earthed annular counter electrode
12/01/1993	EP0572368A2 Phase discriminating capacitive array sensor system
12/01/1993	EP0571615A1 High efficiency floating gate driver circuit using leakage-inductance transformer
12/01/1993	EP0335946B1 High-speed digital data communication system
12/01/1993	CN2148441Y Sound- and light-controlled automatic switch
12/01/1993	CN2148440Y 电源定时器 Power Timer
12/01/1993	CN2148392Y High-power touch electromagnetic switch
12/01/1993	CN2148353Y Damp- and water-proof keyboard
12/01/1993	CN1079083A Compact and efficient transformerless power conversion system
12/01/1993	CN1022965C Regulating and controlling circuit for switching power supply
11/1993
11/30/1993	US5267020 Gallium arsenide monolithically integrated sampling head using equivalent time sampling having a bandwidth greater than 100 ghz
11/30/1993	US5266949 Lighted electronic keyboard
11/30/1993	US5266884 Threshold controlled circuit with ensured hysteresis precedence
11/29/1993	CA2096174A1 Phase discriminating capacitive array sensor system
11/25/1993	WO1993023917A1 Dual snubber circuit
11/25/1993	WO1993023772A1 Fail-safe scanning circuit and sensor of multi-optical axis beam type
11/25/1993	WO1993020535A3 Joystick
11/25/1993	DE4217087A1 Optical keyboard with matrix of keys - has phototransmitter, photoreceiver, and keys contains in independent modules.
11/25/1993	DE4216221A1 Electronic relay for domestic living units lighting circuits - has photo-diode activated by low voltage and phototransistor triggering switching of trial control
11/25/1993	CA2112242A1 Dual snubber circuit
11/24/1993	EP0570820A2 Switchable current source circuit and the use of such a circuit in a phase detector
11/24/1993	EP0570584A1 Semiconductor device
11/24/1993	CN2147692Y Multi-way contact switch
11/24/1993	CN2147657Y Photo controlled lamp socket
11/24/1993	CN2147656Y Valtage-adjustable time-delay switch socket
11/24/1993	CN2147574Y Multi-function electric heating switch
11/24/1993	CN1078834A Switchable inductor for strong currents
11/24/1993	CN1078833A 数字式时间继电器 Digital time relay
11/23/1993	US5265003 Miniaturized switching power supply with programmed level gate drive
11/23/1993	US5264809 Oscillator circuit and proximity switch using
11/23/1993	US5264792 Hall effect position sensor with flux limiter and magnetic dispersion pole piece
11/23/1993	US5264736 High frequency resonant gate drive for a power MOSFET
11/23/1993	US5264735 Superconducting non-linear device
11/23/1993	US5264733 Inductive proximity switch
11/18/1993	EP0570256A1 Switchable high current induction and antenna tuning circuit using the same
11/18/1993	EP0569883A2 Circuit arrangement for limiting the current at make in an electronic componentry
11/18/1993	EP0569581A1 Method and apparatus for monitoring operating characteristics of semiconductor electric power switching circuits
11/18/1993	EP0423291B1 Control switch with monitored operating element
11/18/1993	DE4216147A1 Circuit for switching second consumer in dependence on first consumer switching state - has semiconductor switch in current circuit of first consumer with decisive voltage drop
11/17/1993	CN2146834Y Touch-inductive stepless light-controlling switch
11/17/1993	CN2146832Y Self-putting out lighting switch
11/17/1993	CN2146830Y Automatic lighting controller
11/17/1993	CN2146817Y Multi-functional sound controller
11/17/1993	CN2146816Y Supersonic electronic switching
11/16/1993	US5262885 Control circuit and data transmission device provided with such a circuit
11/16/1993	US5262691 Gate turnoff thyristor control circuit with shorted gate detection
11/16/1993	US5262689 BIMOS current driver circuit
11/16/1993	US5262684 Driving circuit for horizontal output circuit
11/16/1993	US5262681 Trigger source switching circuit
11/16/1993	US5262676 Switching system developed as module having at least one semiconductor switch for switching a load
11/16/1993	US5262636 Proximity sensor apparatus for laser diode

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