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