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)
05/1991
05/21/1991US5017803 Power supply potential rising detection circuit
05/21/1991US5017802 Base current regulation circuit for a switching transistor, in particular a bipolar transistor
05/21/1991US5017793 Optically driven RF generator
05/21/1991US5016978 Magnetically controlled optical switch
05/16/1991WO1991007014A1 High-tension circuit with high-voltage switch made of electro-optical semiconductor elements
05/16/1991WO1991007013A1 Protective circuit for an igbt transistor
05/16/1991DE4003426A1 Magnetic field dependent electronic proximity switch - has oscillation circuit coil with plastics coil former, enriched by powdery, permeable material
05/16/1991DE3937934A1 Schaltungsanordnung zur durchschaltung von hf-signalen Circuit arrangement for switching RF signals
05/15/1991EP0427086A2 Adaptive gate discharge circuit for power FETS
05/15/1991EP0427085A1 Enable circuit with embedded thermal turn-off
05/15/1991EP0427084A2 Maximum swing cascode circuit for a bipolar charge pump
05/15/1991EP0427065A2 Adaptive gate charge circuit for power FETS
05/15/1991EP0426738A1 A circuit arrangement for a power supply unit
05/15/1991EP0426677A1 Detection circuitry.
05/15/1991CN2077179U Multi-functional automatic illumination switch
05/15/1991CN2077173U Integrated circuit time relay
05/15/1991CN2077172U Touching delay-action circduit breaker with display in room
05/14/1991US5016260 Modulator and transmitter
05/14/1991US5016218 Nonvolatile memory with data write circuitry to reduce write errors
05/14/1991US5016122 Coil switching device
05/14/1991US5015883 Compact multifunction logic circuit
05/14/1991US5015880 CMOS driver circuit
05/14/1991US5015873 Semiconductor driver for producing switching and offset signals
05/14/1991CA1284234C Apparatus including resonant-tunneling device having multiple-peak current-voltage characteristics
05/10/1991WO1991007780A1 Semiconductor switch
05/10/1991CA2069911A1 Semiconductor device
05/08/1991EP0426351A2 CMOS power-on reset circuit
05/08/1991EP0426103A2 Electronic circuit device for protecting electronic circuits from unwanted removal of ground terminal
05/08/1991EP0425749A1 Timing relay
05/08/1991DE3936570A1 Electronic input shutter for optical remote control - has opto-reflex light barriers on circuit board behind shutter with transmit and receiver components
05/08/1991DE3936434A1 Linear programme switch - operates multiple switch contacts simultaneously or sequentially
05/08/1991CN2076728U Multifunctional electronic delay switch
05/08/1991CN1051253A Regulating and controlling circuit for switching power supply
05/07/1991US5014179 Power switch
05/07/1991US5014102 MOSFET-gated bipolar transistors and thyristors with both turn-on and turn-off capability having single-polarity gate input signal
05/07/1991US5014096 Optoelectronic integrated circuit with optical gate device and phototransistor
05/07/1991US5013939 Thin-film transistor array
05/07/1991US5013926 Photocoupler apparatus capable of shortening switching time of output contact
05/07/1991CA1283967C Broadband signal switching apparatus
05/02/1991EP0425035A2 Overload protection drive circuit for a power transistor
05/02/1991EP0425024A2 Circuit for limiting the output voltage of a monolithic semiconductor power device which drives a resonant load connected to a power supply
05/02/1991EP0424390A1 Voltage comparator.
05/02/1991DE3936553A1 Electronic switching device - has built-in potentiometer for setting that is accessed through sidewall
05/02/1991DE3935577A1 Operating voltage monitoring circuit with hysteresis - has Schmitt trigger input stage connected to changeover device output stage
05/02/1991DE3935452A1 Integrated, bistable flip=flop with differential amplifier - has current mirror in output branch of each amplifier switching transistor
05/01/1991CN2076289U Multifunction electronic lamp
05/01/1991CN2076288U Electronic sound-controlled bed-side lamp
05/01/1991CN2076282U Automatic electronic switch
05/01/1991CN2076281U 电子延时开关 Electronic time delay switch
05/01/1991CN1012490B Receiver of electronic door
04/1991
04/30/1991US5012356 Switching circuit
04/30/1991US5012206 Inductive proximity switch
04/30/1991US5012162 Light emitting diode transmitter circuit with temperature compensation
04/30/1991US5012153 Split collector vacuum field effect transistor
04/30/1991US5012129 Line driver
04/30/1991US5012128 High speed push-pull driver having current mirror pull-down
04/30/1991US5012126 High speed CMOS multiplexer having reduced propagation delay
04/30/1991US5012124 Touch sensitive control panel
04/30/1991US5012123 High-power rf switching system
04/25/1991DE3934921C1 Switching circuitry for reactive loads such as coils, and oscillators - has diode in antiparallel with each diode in series with semiconductor switch
04/25/1991DE3934814A1 Controlled ionisation tube for switches and amplifiers - has ions in solution in water and na and oh solution
04/24/1991EP0424113A2 High isolation passive switch
04/24/1991EP0423455A2 Self-powered SCR gate drive circuit with optical isolation
04/24/1991EP0423442A1 Hybrid GaAs MMIC FET-PIN diode switch
04/24/1991EP0423291A1 Control switch with monitored operating element.
04/24/1991CN2075831U Corridor lamp socket box with sound control relay switch
04/24/1991CN1050942A Cmos driver circuit
04/23/1991US5010470 Current balancing structure for semiconductor switching devices
04/23/1991US5010439 Control circuit for the clamping voltage of an inductive load driven by a power device in a high side driver configuration
04/23/1991US5010261 Lossless gate driver circuit for a high frequency converter
04/23/1991US5010257 BICMOS logic circuit with full swing operation
04/18/1991WO1991005402A1 Power controller with low standby current drain
04/18/1991WO1991005301A1 Reference voltage distribution system
04/18/1991DE4029783A1 GTO thyristor overcurrent protection - monitors load current dependent voltage between control electrode and reference potential
04/17/1991EP0422391A2 CMOS driver circuit
04/17/1991EP0379521A4 Bulk avalanche semiconductor switch using field compression
04/17/1991CN2075404U Universal photoelectric auto-switch
04/17/1991CN2075403U Timer for circulatory stopping rotation of fan
04/16/1991US5008905 Universal shift register employing a matrix of transmission gates
04/16/1991US5008798 Compact high voltage power supply
04/16/1991US5008771 Diagnostic circuit for units providing current control and protection against excessive heat dissipation for semiconductor power devices
04/16/1991US5008586 Solid state current sensing circuit and protection circuit
04/16/1991US5008570 Schmitt-triggered TTL to CML input buffer apparatus
04/16/1991US5008567 Signal generating circuit free from malfunction based on noise
04/16/1991US5008566 Power supply voltage drop detection circuit for use in EEPROM memory
04/16/1991US5008565 High-impedance FET circuit
04/16/1991US5008534 Contactless switch having translating focusing/defocusing lens
04/16/1991US5008532 Light reception signal circuit for photoelectric switch
04/16/1991US5008531 Pulsed light identifying system
04/16/1991US5008529 Photoelectric switching apparatus of reflection type projecting red and infrared light
04/16/1991CA1283150C Pressure responsive switch
04/13/1991CA2000636A1 Switch with frequency compensation, early voltage compensation and enable indicator
04/11/1991DE3932083C1 Control circuitry for FET operating as switch in load circuit - provides voltage source dependent on control voltage of FET raising working point of controlled path by offset voltage
04/10/1991EP0421448A2 Signal output circuit having bipolar transistors at output, for use in a MOS semiconductor integrated circuit
04/10/1991EP0421124A2 Power-up pulse generator circuit
04/10/1991CN1050653A Am/fm frequency range selector
04/10/1991CN1050651A Power controller with low standby current drain
04/09/1991US5006949 Temperature compensated overload trip level solid state relay
04/09/1991US5006856 Electronic article surveillance tag and method of deactivating tags
04/09/1991US5006739 Using a voltage follower
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