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)
12/1981
12/01/1981US4303831 Optically triggered linear bilateral switch
12/01/1981CA1113552A1 Optically-controlled two-channel integrated optical switch
12/01/1981CA1113543A1 Ttl compatible led driver circuit
11/1981
11/30/1981EP0032497A4 Optically triggered linear bilateral switch.
11/25/1981EP0040260A1 Transistor ignition device
11/24/1981US4302804 DC Voltage multiplier using phase-sequenced CMOS switches
11/24/1981US4302792 Transistor protection circuit
11/24/1981US4302691 Integrated delay circuit with PN-junction capacitor
11/24/1981US4302688 Solid-state relay
11/24/1981US4302687 Semiconductor switch
11/24/1981US4301804 Pacemaker with Hall effect externally controlled switch
11/24/1981EP0032911A4 Improvements in sensitive door edges.
11/18/1981EP0040155A1 Static proximity detectors
11/18/1981EP0040017A1 Switching system for sequential connection of loads to an electrical supply
11/18/1981EP0039952A1 Switch comprising a MIS-FET operated as a source follower
11/18/1981EP0039674A1 Magnetic control apparatus.
11/17/1981US4301380 Voltage detector
11/10/1981US4300127 Solid state noncontacting keyboard employing a differential transformer element
11/10/1981US4300065 Power on reset circuit
11/10/1981US4300062 Offset compensation circuit for charge-coupled devices
11/10/1981CA1112354A1 Circuit arrangement a portion of which is included within in a monolithic integrated semiconductor body
11/10/1981CA1112307A1 Timer circuit
11/04/1981EP0038803A1 Photo-optical keyboard having n-key rollover
11/03/1981US4298810 Semiconductor device conduction state detection circuit
11/03/1981US4298809 Gate circuit for gate turn-off thyristor
10/1981
10/28/1981EP0038712A1 Single-ended switching converter
10/28/1981EP0038551A1 Device for the contactless determination of the position and/or of the dielectric properties of objects
10/28/1981EP0038496A1 Firing device and piezoelectric coupling element for firing with galvanic decoupling
10/27/1981US4297594 Gate circuit for a gate turn-off thyristor
10/27/1981US4297105 Automatic photometric titrator
10/27/1981CA1111519A1 A.c. powered speed up circuit
10/27/1981CA1111517A1 Inductive load driving amplifier
10/20/1981US4296410 Two-state Hall element proximity sensor device with lamp indicator
10/20/1981US4296340 Initializing circuit for MOS integrated circuits
10/20/1981US4296338 Power on and low voltage reset circuit
10/20/1981US4296336 Switching circuit and method for avoiding secondary breakdown
10/20/1981US4296331 Optically coupled electric power relay
10/20/1981CA1111112A2 Bar graph display for stove
10/20/1981CA1111111A2 Induction cook-top system
10/13/1981US4295226 High speed driver for optoelectronic devices
10/13/1981US4295176 Semiconductor integrated circuit protection arrangement
10/13/1981US4295118 Latching relay using Hall effect device
10/13/1981US4295090 Electronic selector switch particularly for use in radioscondes
10/13/1981US4295063 Fast settling digital to analog converter bit switch
10/13/1981US4295060 Solid state triggering circuit
10/13/1981US4295059 High gain latching Darlington transistor
10/13/1981US4295058 Radiant energy activated semiconductor switch
10/13/1981US4295057 Dual signal control system
10/13/1981US4293987 Method of fabricating capacitive touch switch panel
10/13/1981CA1110728A1 Solid state proximity switch
10/07/1981EP0037268A1 Switching circuit for effecting selection from a plurality of input analog signals
10/07/1981EP0037087A1 Method and device for connecting and disconnecting without overoscillation a capacitor between two conductors of an AC network
10/06/1981US4293779 Control of power semiconductors through center-tapped transformer with self-demagnetizing circuitry
10/06/1981US4293745 Capacitance type contact switch
10/06/1981CA1110331A1 Gate turn off thyristor switching circuit
09/1981
09/30/1981EP0036791A1 Inverter using low threshold field effect transistors and a switching diode
09/30/1981EP0036666A1 Remote load selector
09/30/1981EP0036424A1 Circuit arrangement for an asynchronous motor drive with variable speed.
09/29/1981US4292542 Submersible remote control switch assembly
09/29/1981US4292517 Photo-optical keyboard providing tactile feel
09/29/1981US4292516 Photo-optical keyboard having debris protection
09/29/1981US4292515 Reconfigurable photo-electric keyboard having removable keys
09/29/1981CA1109974A1 Push buttons
09/29/1981CA1109962A1 Slm bubble device with increased operating margins
09/23/1981EP0036015A1 Photo-optical keyboard providing tactile feel
09/22/1981US4291357 Short circuit protection circuit
09/22/1981US4291319 Open base bipolar transistor protective device
09/22/1981US4291303 Touch pad and display tube circuitry
09/22/1981US4291225 Molded plastic photo-optical keyboard
09/22/1981CA1109521A1 Method of programming hall effect switch and magnet and apparatus for performing same
09/16/1981EP0035767A1 Semiconductor device
09/16/1981EP0035740A1 Capacitive sensor for a time-piece and method of manufacturing this sensor
09/16/1981EP0035544A1 Photo-optical keyboard having debris protection
09/16/1981EP0035543A1 Molded plastic photo-optical keyboard
09/15/1981US4290061 Electrically integrated touch input and output display system
09/15/1981US4290052 Capacitive touch entry apparatus having high degree of personal safety
09/15/1981US4289980 Touch sensitive electric switch
09/15/1981US4289978 Complementary transistor inverting emitter follower circuit
09/15/1981US4289972 Touch control switch
09/15/1981CA1109129A1 Electronic switching systems
09/09/1981EP0035379A1 A gate circuit for a thyristor and a thyristor having such a gate circuit
09/09/1981EP0035345A1 A power-on reset circuit
09/09/1981EP0035225A2 Proximity switch with matching monitoring devices
09/08/1981US4288836 Capacitance controlled keyswitch
09/08/1981US4288740 Constant current switch
09/08/1981US4288738 Dual-mode amplifier
09/08/1981CA1108684A1 Electrographic writing system
09/02/1981EP0034821A1 Pulse generation by changing magnetic field
09/01/1981US4287440 Proximity switching device
09/01/1981US4287436 Electrical circuit for driving an inductive load
09/01/1981US4287435 Complementary transistor inverting emitter follower circuit
09/01/1981US4287434 Semiconductor switch device
08/1981
08/25/1981US4286314 Inverter circuit for minimizing switching power losses
08/25/1981US4286206 Load-responsive treater controller
08/25/1981US4286179 Push pull switch utilizing two current switch circuits
08/25/1981US4286175 VMOS/Bipolar dual-triggered switch
08/25/1981US4285322 Apparatus for controlling an ignition coil of an internal combustion engine
08/25/1981CA1107867A1 Circuit for interfacing between an external signal and control apparatus
08/20/1981WO1981002350A1 Scan-controlled keyboard
08/19/1981EP0034112A1 Electronic interface circuit
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