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)
08/1981
08/19/1981EP0034076A2 Solenoid driving system
08/18/1981US4284961 Digital position transducer including variable tuning element oscillator
08/18/1981US4284954 Sequential light circuit
08/18/1981US4284927 Method for breaking direct current and d.c. breaker for effecting same
08/18/1981US4284911 Switching network
08/18/1981US4284885 Optical potentiometer
08/18/1981US4284208 Vend control system
08/18/1981US4284051 Switching control apparatus for electromagnetic control units
08/18/1981CA1107354A1 Frequency-voltage converter
08/18/1981CA1107353A1 High energy, short duration pulse system
08/11/1981US4283714 Magnetic keyboard system
08/11/1981US4283640 All-NPN transistor driver and logic circuit
08/06/1981WO1981002223A1 Pressure sensitive piezoelectric polymer signal generator
08/05/1981EP0033149A2 Switch matrix apparatus for satellite-switched TDMA system or the like
08/05/1981EP0032985A2 Line driver circuit with short circuit protection
08/05/1981EP0032911A1 Improvements in sensitive door edges
08/05/1981EP0032902A1 Contactless pressure sensitive switch
08/04/1981US4282568 Electric power converting apparatus
08/04/1981US4282556 Input protection device for insulated gate field effect transistor
08/04/1981US4282447 Signal buffer circuit arrangement
08/04/1981CA1106454A1 Photocoupling line isolation circuit
07/1981
07/29/1981EP0032727A2 Process for the manufacture of a magnetic pass-through detector
07/29/1981EP0032726A2 Magnetic pass-through detector
07/29/1981EP0032552A1 Protecting device for a gate turn-off thyristor
07/29/1981EP0032497A1 Optically triggered linear bilateral switch
07/28/1981US4281400 Circuit for reducing the loading effect of an insulated-gate field-effect transistor (IGFET) on a signal source
07/28/1981US4281325 Positive feedback meter pulse initiator
07/28/1981US4281260 Controlled power supply for integrated circuits
07/28/1981CA1106004A1 Switching device
07/23/1981WO1981002079A1 High resolution fast diode clamped comparator
07/23/1981WO1981002062A1 Fluid pressure monitoring device
07/22/1981EP0032421A1 Fiber-reinforced concrete
07/21/1981US4280166 Over-voltage protected solid-state ignition system
07/21/1981US4280069 Field effect transistor device means control system
07/21/1981US4280063 Electronic timer device
07/21/1981CA1105576A1 Capacitive keyswitch
07/15/1981EP0032046A2 Circuitry for protecting a semiconductor device against static electricity
07/15/1981EP0032043A1 Transistor-transistor logic circuit
07/15/1981EP0032018A1 Semiconductor integrated circuit device
07/15/1981EP0031986A1 Overcurrent protection apparatus
07/15/1981EP0031871A1 High resolution superconductive sampling system
07/14/1981US4278965 Photo-optical keyboard having n-key rollover
07/14/1981US4278944 Chopper type switching circuit
07/09/1981WO1981001926A1 Control circuitry using two branch circuits for high-voltage solid-state switches
07/09/1981WO1981001925A1 Control circuitry using a pull-down transistor for high voltage solid-state switches
07/09/1981WO1981001924A1 Field effect transistor circuit configuration
07/08/1981EP0031681A2 Decoder circuit
07/08/1981EP0031626A2 Control device for the trigger electrode of a semiconductor switch of a bidirectional system
07/08/1981EP0031583A2 A driver circuit for charge coupled device
07/08/1981EP0031582A1 Multi-level signal generating circuit
07/07/1981US4277780 Scan-controlled keyboard
07/07/1981US4277696 Semiconductor switch circuit
07/07/1981CA1104715A1 Photoelectric signal generating circuits
07/07/1981CA1104649A1 Controllable rectifier circuit for a power supply
07/01/1981EP0031083A1 Voltage divider circuit for parallel connection to a thyristor
06/1981
06/30/1981US4276588 Push-pull converter with energy saving circuit for protecting switching transistors from peak power stress
06/30/1981US4276487 FET driver circuit with short switching times
06/30/1981US4276486 Two terminal power control switch with triac current powered control means
06/30/1981US4276485 Monolithic digital semiconductor circuit comprising a plurality of bipolar transistors
06/23/1981US4275430 DV/DT Protection circuit device for gate turn-off thyristor
06/23/1981US4275378 Monitoring the operation of a vehicle
06/23/1981US4275359 MOS FET Amplifier
06/23/1981US4275317 Pulse switching for high energy lasers
06/23/1981US4275314 Josephson Atto-Weber switch
06/23/1981US4275308 Optically toggled device
06/23/1981US4275307 Input circuit for digital control systems
06/23/1981US4274752 Keyboard multiple switch assembly
06/23/1981CA1103767A1 Contactless switch and method for making same
06/16/1981US4274135 Gating circuit for high voltage thyristor strings
06/16/1981US4274112 Switching matrix for selectively connecting incoming signals to desired output paths
06/16/1981US4274075 Electronic multi-range variable resistor
06/16/1981US4274015 Self-resetting Josephson digital current amplifier
06/16/1981US4274014 Switched current source for current limiting complementary symmetry inverter
06/10/1981EP0030216A1 Washing machine basket positioning device
06/10/1981EP0030135A1 Pacemaker with Hall effect element
06/10/1981EP0029919A1 Interface circuit in conformity with EIA RS 232C norms put into use by an operational amplifier
06/09/1981US4272839 Electric timer
06/09/1981US4272692 Power supply distribution system
06/09/1981CA1102872A1 Self-powered remote electric switch
06/03/1981EP0029770A1 Control panel comprising capacitive tip keys
06/03/1981EP0029767A1 Control process for a Darlington circuit and low-loss Darlington circuit
06/03/1981EP0029673A1 Object detection installation
06/03/1981EP0029525A1 Rectifier element
06/02/1981US4271448 Electronic protection circuit for solid state switches energizing AC loads
06/02/1981US4271403 Coaxial cable switching circuit
06/02/1981US4271354 Manual belt electro-optical control
05/1981
05/27/1981EP0029296A1 Internal combustion engine spark ignition system
05/27/1981EP0029231A1 Reference voltage generator circuit
05/26/1981US4270171 Position sensing and indicating device
05/26/1981US4270046 Two-terminal optical sensor
05/26/1981CA1101943A1 Video switching circuit
05/26/1981CA1101942A1 Bipolar transistor switch
05/20/1981EP0028784A1 Thyristor valve for high-voltage power converters
05/20/1981EP0028685A2 Darlington transistor circuit
05/20/1981EP0028663A1 Capacitive keyswitch
05/19/1981US4268843 Solid state relay
05/19/1981US4268814 Solid state keyboard
05/19/1981US4268172 Method of and system for automatically adjusting a threshold level of a pulse generating circuit to inspect a web
05/19/1981US4267725 Arrangement for registering loads
05/19/1981CA1101569A1 Digital data processing system incorporating high speed analogue sampling gates
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