Patents
Sitemap › H03 - Basic electronic circuitry › H03K - Pulse technique › 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)
12/1989
12/13/1989CN2049372U Sound-control illuminated electronic quartz clock
12/13/1989CN1038001A 无触点间断电信号发生设备 Non-contact electrical generation equipment interruption
12/12/1989US4887198 Electronic large current switch for a single power circuit
12/12/1989US4887181 Circuit for temperature protection with hysteresis
12/12/1989US4886985 Transistor arrangement with an output transistor
12/12/1989US4886984 Prohibition circuit upon power-on event
12/12/1989US4886983 Reset pulse generating device
12/12/1989CA1263890A1 Circuit for reducing electromagnetic interference from magnetic core keyboards
12/07/1989DE3917176A1 High-voltage switch with series-connected semiconductors
12/06/1989EP0345156A2 Analog switch circuit
12/06/1989EP0344925A2 Superconductively loaded semiconductor logic device
12/06/1989EP0344614A2 TTL totem pole anti-simultaneous conduction circuit
12/06/1989EP0344613A2 TTL current sinking circuit with transient performance enhancement during output transition from high to low
12/06/1989EP0344604A2 Output circuit for use in a semiconductor IC
12/06/1989EP0344569A2 Electronic switching device, particularly proximity switch
12/06/1989CN2049062U Energy saving telecontrol switch
12/06/1989CN2049052U Domestic electronic sounding timer
12/06/1989CN2049051U Poly-step electronic delay switch
12/06/1989CN1006032B Fast spark detector
12/05/1989US4885657 Thyristor with turn-off facility and overvoltage protection
12/05/1989US4885486 Darlington amplifier with high speed turnoff
12/05/1989US4885485 CMOS Output buffer providing mask programmable output drive current
12/05/1989US4885484 Voltage clamped differential to single ended converter circuit
12/05/1989US4885476 Power-on reset circuit
12/05/1989CA1263716A1 Speed up of up-going transition of ttl or dtl circuits under high capacitive load
12/05/1989CA1263701A1 Power interface circuit with control chip powered from power chip
11/1989
11/30/1989WO1989011755A1 Driver circuit
11/30/1989DE3916158A1 Input selection switch using two-way analogue switch
11/30/1989DE3913185A1 Current-pulse thyristor triggering
11/29/1989EP0343968A2 Programmable logic device
11/29/1989EP0343872A2 CMOS power-on reset circuit
11/29/1989EP0343685A2 Piezoelectric switch
11/29/1989EP0343553A2 Low voltage-controlled, stand-by electronic circuit with delayed switch off
11/29/1989EP0343536A1 Circuit for controlling the power supply of an electrical load, having a device for detecting a short-circuit of the load
11/29/1989EP0343484A2 Touchless proximity switch for railway installations
11/29/1989EP0343161A1 Solenoid driver control circuit with initial boost voltage.
11/29/1989CN2048663U Electronic delay self cut-off lamp switch
11/29/1989CN2048651U Multi-use contactless switch
11/28/1989US4884165 Differential line driver with short circuit protection
11/28/1989US4884114 Disconnectable thyristor
11/28/1989US4884073 Increased sensitivity optical keyboard
11/28/1989US4884041 Fully integrated high-speed voltage controlled ring oscillator
11/28/1989US4883984 PIN diode switch
11/28/1989US4883978 Semiconductor device having reduced potential fluctuations
11/28/1989CA1263468A1 Circuit interrupter using arc commutation
11/23/1989EP0342735A1 Circuit for generating a pulse-shaped signal
11/23/1989EP0155313B1 High speed bipolar logic circuit
11/23/1989DE3816140A1 Video signal commutator
11/22/1989CN2048272U Adapter of exciter lamp with acoustooptic open delayed closure
11/22/1989CN2048271U Audio control timing lamp
11/22/1989CN2048270U Lamplight stoboflash control
11/21/1989US4882581 Keyboard for a portable data terminal
11/21/1989US4882534 Bipolar-complementary metal oxide semiconductor inverter
11/21/1989US4882532 Active overvoltage control for inductive load driving
11/21/1989US4882507 Output circuit of semiconductor integrated circuit device
11/21/1989US4882504 Interrupter arrangement for high-frequency signals
11/21/1989US4882502 Integrated circuit for controlling the loads of automobile circuitry
11/21/1989CA1263153A1 Switching system for capacitor charging/discharging
11/16/1989WO1989011124A1 Voltage control circuit
11/16/1989DE3914387A1 Safety proximity switch
11/15/1989EP0342144A2 Voltage sensitive switch
11/15/1989EP0341929A2 Multiplexer circuit
11/15/1989EP0341757A2 Apparatus for dispensing flowable material
11/15/1989EP0341689A2 Control apparatus
11/15/1989EP0341576A2 Self-checking capacitive proximity switch
11/15/1989EP0341482A1 Circuit arrangement for determining the overtemperature of a semiconductor element
11/15/1989EP0341460A2 Driver protection circuit
11/15/1989CN2047873U Self-lighting out electronic delayaction circuit breaker
11/15/1989CN2047865U Infra-red remote-control mainswitch
11/15/1989CN2047863U Energy-saving delay-action touch switch
11/15/1989CN2047524U Pillow capable of waking-up sleeper
11/14/1989US4881024 Voltage sensitive switch
11/14/1989US4880998 Bipolar transistor and CMOS transistor logic circuit having improved discharge capabilities
11/14/1989US4880997 Low noise output buffer circuit
11/14/1989US4880995 Electrically isolated MOSFET drive circuit
11/09/1989DE3836000A1 Pulse-generating network for the excitation circuit of gas lasers, especially excimer lasers
11/09/1989DE3814131A1 Method for measuring a coil with losses and inductive distance sensor constructed in accordance with this method
11/08/1989EP0340918A2 Mosfet power switch arrangements
11/08/1989EP0340731A2 Output circuit of semiconductor integrated circuit with reduced power source line noise
11/08/1989EP0340715A1 Logic gate
11/08/1989EP0340596A1 Hall-effect position sensing system and device
11/08/1989EP0340443A2 Light signal reception circuit for photoelectric switch
11/08/1989EP0340442A2 Photoelectric switch
11/08/1989EP0340441A2 Photoelectric switch
11/08/1989EP0340282A1 Two-mode driver circuit
11/08/1989EP0183720B1 Transformerless drive circuit for operating a field-effect transistor switch
11/08/1989CN2047476U Miniature timing automatic turnoff electricity-saving switch
11/08/1989CN2047475U Lampstand type adjustable light controller
11/08/1989CN2047474U Photoelectric controller for light lamp
11/08/1989CN2047467U Electronic power-saving time-delay
11/08/1989CN2047461U Full-automatic double-purpose protector for refrigerator and air conditioner
11/07/1989US4879647 Watchdog timer circuit suited for use in microcomputer
11/07/1989US4879624 Power controller
11/07/1989US4879551 Switching array with concurrent marking capability
11/07/1989US4879531 Inductive proximity switch oscillator having same activating range for ferrous and nonferrous metals
11/07/1989US4879512 Circuit for processing a pseudo-oscillatory signal, especially for inductive proximity detectors
11/07/1989US4879474 Contact-free operating electronic switchgear
11/07/1989US4878493 Hand-held diathermy apparatus
11/02/1989WO1989010591A1 Output circuit
11/02/1989EP0339963A2 Synchronous rectifier
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