Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158) |
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08/06/1992 | DE4103108A1 Mains power supply unit with surge-preventing semiconductor switch - incorporates control casing switch to commence conduction at phase determined by position of mains voltage window |
08/05/1992 | EP0497694A1 Optical matrix keyboard |
08/05/1992 | EP0497068A1 Threshold circuit |
08/05/1992 | EP0496910A1 Circuit arrangement for generating a power-on reset signal |
08/05/1992 | EP0472607A4 Method and apparatus for controlling the operation of a solenoid |
08/05/1992 | EP0288574B1 Apparatus for processing signals of a pulse encoder |
08/05/1992 | CN2112242U Dual-purpose induced switch with timing delay function |
08/05/1992 | CN2112231U Sound-controlling device for colour lamps |
08/05/1992 | CN2112230U Buffer switch |
08/05/1992 | CN2112216U Saving-energy time-delay lamp cap |
08/05/1992 | CN1063385A Contactless multifunctional switch |
08/04/1992 | US5136293 Differential current source type d/a converter |
08/04/1992 | US5136188 Input/output macrocell for programmable logic device |
08/04/1992 | US5136187 Temperature compensated communications bus terminator |
08/04/1992 | US5136181 Power-on-reset circuit |
08/04/1992 | US5136179 Logic level discriminator |
08/04/1992 | US5136176 Charge domain synapse cell |
08/01/1992 | CA2060382A1 Matrix optical keyboard |
07/30/1992 | DE4102542A1 Inductive proximity switch with constant trigger distance - has oscillator producing magnetic field influenced by difference between field sensing coil voltages |
07/29/1992 | EP0496718A2 Method for minimizing the switching loss in a power switch |
07/29/1992 | EP0496654A1 Dimmer for a load, with minimal filtering losses |
07/29/1992 | EP0496645A1 Swivelling proximity probe-head |
07/29/1992 | EP0496321A2 Current supply circuit for driving high capacitance load in an integrated circuit |
07/29/1992 | EP0496277A2 Output stage for a digital circuit |
07/29/1992 | EP0496065A2 Driving circuit for horizontal output circuit |
07/29/1992 | EP0496018A1 Integrated circuit for generating a reset signal |
07/29/1992 | CN2111599U Touch electronic voltage-adjusting switch |
07/29/1992 | CN2111598U Doppler effect electronic switch |
07/29/1992 | CN2111597U Automatic infrared energy-saving switch |
07/29/1992 | CN2111596U Antijamming automatic light control switch for street lamp |
07/29/1992 | CN2111595U Multi-functional electronic switch |
07/29/1992 | CN2111573U Sound-control power supply socket |
07/29/1992 | CN2111567U Infrared remote control unit for antenna swaying |
07/29/1992 | CN1017673B Am/fm frequency range selector |
07/28/1992 | US5134323 Three terminal noninverting transistor switch |
07/28/1992 | US5134322 Control and monitoring device for a power switch |
07/28/1992 | US5134321 Power MOSFET AC power switch employing means for preventing conduction of body diode |
07/28/1992 | US5134320 High efficiency FET driver with energy recovery |
07/28/1992 | US5134311 Self-adjusting impedance matching driver |
07/28/1992 | US5134310 Current supply circuit for driving high capacitance load in an integrated circuit |
07/28/1992 | US5134304 Light projecting circuit in a photoelectric switch |
07/23/1992 | WO1992012575A1 Semiconductor device |
07/23/1992 | WO1992012498A1 Semiconductor device |
07/23/1992 | DE4101477A1 Proximity detector power supply - combined constant current and low impedance power supply circuit |
07/23/1992 | DE4101191A1 Opto-coupler circuit with switch-on time - has phototransistor operating as constant current source by limitation of capacitance using nonlinear devices |
07/22/1992 | EP0495436A2 Quantum phase interference transistor |
07/22/1992 | EP0353292B1 Current summed optoelectronic crossbar switch |
07/22/1992 | CN2110972U Electricity-saving and alarm controller for lighting lamp of oil well |
07/22/1992 | CN2110971U Automatic switching device for passageway lamp |
07/22/1992 | CN2110962U Full-automatic electricity-saving switch |
07/21/1992 | US5132767 Double gate GTO thyristor |
07/21/1992 | US5132600 Load driving circuit having a pair of push-pull circuits |
07/21/1992 | US5132569 High speed Bi-COMS input circuit fabricated from a small number of circuit components |
07/21/1992 | US5132568 Tri-state output circuit utilizing a BiCMOS inverter circuit |
07/21/1992 | US5132566 BiMOS semiconductor integrated circuit having short-circuit protection |
07/21/1992 | US5132564 Bus driver circuit with low on-chip dissipation and/or pre-biasing of output terminal during live insertion |
07/21/1992 | US5132561 Switching of logic data signals |
07/21/1992 | US5131941 High Temperature, Radiation |
07/21/1992 | US5131138 Method of manufacturing an optical micro-switch apparatus |
07/21/1992 | CA1305541C White touch pads for capacitive touch control panels |
07/16/1992 | DE4100790A1 Monitoring power transistor made conductive by rectangular signal - setting memory element into state indicating defect according to voltage level during time window |
07/15/1992 | EP0494447A1 High speed latch transceiver |
07/15/1992 | CN2110331U Automatic delay lamp switch controlled by sound and light |
07/15/1992 | CN2110277U Electronic power switch |
07/15/1992 | CN1062821A Flash lamp synchronous unit |
07/14/1992 | US5130917 Power inverter snubber circuit |
07/14/1992 | US5130883 Circuit for overvoltage protection |
07/14/1992 | US5130697 Method and apparatus for shaping a magnetic field |
07/14/1992 | US5130635 Voltage regulator having bias current control circuit |
07/14/1992 | US5130633 Circuit for detecting an excess-discharge of a battery |
07/14/1992 | US5130582 Delay circuit which is free from temperature variation, power supply voltage variation and process variation |
07/14/1992 | US5130569 Power-on reset circuit |
07/14/1992 | US5130528 Opto-photo-electric switch |
07/14/1992 | US5130526 Circuit array for optical schmitt trigger |
07/14/1992 | US5130507 Capacitive switch assembly |
07/09/1992 | DE4139997A1 MOSFET circuit for inverter and interrupting free current supply - has power MOSFET(s) which form symmetrical module, together with energising circuits, w.r.t. thermal and electric conditions |
07/09/1992 | DE4139566A1 Relay operating without moving parts - has coil wound around ferrite core and insulator with inset semiconductor chip |
07/08/1992 | EP0494074A2 Switch with improved threshold voltage |
07/08/1992 | CN2109682U Optical control switch for passageway lamp |
07/08/1992 | CN2109667U Touching type light switch |
07/08/1992 | CN2109666U General power saving remote full automatic controller |
07/08/1992 | CN2109665U Automatic delay cut-off controller of power supply |
07/07/1992 | USH1068 CMOS capacitive charging circuit for electrical detonators |
07/07/1992 | US5128940 Demultiplexer |
07/07/1992 | US5128823 Power semiconductor apparatus |
07/07/1992 | US5128730 Semiconductor device and a circuit suitable for use in an intelligent power switch |
07/07/1992 | US5128568 Self-biasing timing circuit for achieving long time delays |
07/07/1992 | US5128567 Output circuit of semiconductor integrated circuit with reduced power source line noise |
07/07/1992 | US5128565 Sense amplifier with increased speed and reduced power consumption |
07/07/1992 | US5128564 Input bias current compensation for a comparator |
07/07/1992 | US5128553 Lateral PNP turn-off drive circuit |
07/07/1992 | CA1304791C Two-level ecl multiplexer without emitter dotting |
07/07/1992 | CA1304725C Method and apparatus for dispensing flowable material |
07/01/1992 | EP0493238A1 Short circuit protection circuit for electronic switch |
07/01/1992 | EP0493185A1 Control circuit for a force commutated power transistor |
07/01/1992 | EP0492506A2 Fast capacitive-load driving circuit for integrated circuits particularly memories |
07/01/1992 | EP0492375A1 Voltage/current characteristics control circuit particularly for protecting power transistors |
07/01/1992 | EP0492029A1 Inductive proximity sensor |
07/01/1992 | CN2109042U Double functional ac induction switch |
07/01/1992 | CN2109041U Touch type electronic delay anergy saving switch |