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)
09/1991
09/04/1991EP0445045A1 Process and control circuit for an output bus of an integrated circuit
09/04/1991EP0444826A2 Protection circuit for a semiconductor device
09/04/1991EP0444484A2 Circuit for overvoltage protection
09/04/1991EP0444433A2 Circuit arrangement for opto-electronic Schmitt trigger
09/04/1991EP0444408A2 Emitter coupled logic circuit
09/04/1991EP0444404A2 High voltage bridge interface for AC and brushless DC motor control
09/04/1991CN2084253U Self-protecting driver for transistor switch
09/04/1991CN1054341A Delay switch
09/04/1991CN1054337A Protective circuit of high-power darlington transistors
09/03/1991US5045964 Thermal clamp for an ignition coil driver
09/03/1991US5045910 Integrated power transistor comprising means for reducing thermal stresses
09/03/1991US5045851 Analog signal multiplexer with noise rejection
09/03/1991US5045774 Full scale AC or DC power attenuator
09/03/1991US5045734 High power switch
09/03/1991US5045733 Switching apparatus with cascaded switch sections
09/03/1991US5045724 Circuit for limiting the short circuit output current
09/03/1991US5045718 Circuit for detecting power supply voltage variation
09/03/1991US5045714 Multiplexer with improved channel select circuitry
09/03/1991US5045709 Optically coupled solid state relay with dual discharging circuits
09/03/1991US5045680 Integrated circuit optoelectronic toggle F/F
09/03/1991US5044714 Variable interval electromagnetic pulse train generator
09/03/1991US5044349 High-voltage switch
08/1991
08/29/1991DE4006119A1 Capacitive path sensor with oscillator - has screening electrode between capacitor active and earthing electrodes, at same potential as active electrode
08/29/1991DE4005813A1 Load current monitor for electronically switched load - compares voltage drop across series measuring resistance with voltage drop across reference resistance
08/29/1991DE4004450A1 Inductive proximity switch with variable oscillator supplying coil - uses tuned circuits in sensor and detector to avoid actuation from other metallic objects
08/28/1991EP0443924A1 Means for controlling the heat sources of a cooking appliance by sensory buttons
08/28/1991EP0443435A1 Output buffer circuit with output voltage sensing for reducing switching induced noise
08/28/1991EP0443434A1 Ouput buffer circuit with signal feed forward for reducing switching induced noise
08/28/1991EP0443238A2 Precision switched current source
08/28/1991EP0443155A1 Switchgear for switch-on and switch-off
08/28/1991CN2083827U Photo-controlled timing energy-saving switch for road lamp
08/28/1991CN2083807U Infrared ray switch
08/28/1991CN2083806U Electromagnetic field directly driving electronic switch
08/28/1991CN2083785U Light turning off timing switch
08/27/1991US5043725 Broadband signal switching equipment
08/27/1991US5043719 Matrix circuit
08/27/1991US5043710 Touch sensor
08/27/1991US5043679 Temperature-stable inductive proximity switch
08/27/1991US5043611 Thyristor controller
08/27/1991US5043604 Output buffer circuit having a level conversion function
08/27/1991US5043602 High speed logic circuit with reduced quiescent current
08/27/1991US5043600 BiCMOS inverter circuit
08/27/1991US5043587 Photocoupler circuit having DC power source in series with detection and switching means
08/27/1991US5043543 Proximity switch assembly
08/22/1991DE4005168A1 Rapid switching circuit for transformer or motor
08/21/1991EP0442797A1 Circuit for switching a microwave output signal towards a first or a second output port
08/21/1991EP0442688A2 Switching circuit
08/21/1991EP0442561A1 Semiconductor relay circuit
08/21/1991EP0442347A2 Selecting one of a plurality of voltages without overlap
08/21/1991EP0442001A1 Comparator circuit
08/21/1991EP0441965A1 Light-emitting diode drive circuit
08/21/1991CN2083385U Double-ended night-vision remote-sensing delay-action circuit breaker
08/21/1991CN2083383U Four-level light regulator controlled by power supply switches
08/21/1991CN2083382U Automatic opening and closing current limiter of optical-control lights
08/21/1991CN1053978A 触摸开关 Touch switch
08/20/1991US5041940 Power transistor control circuit particularly for switching incandescent lamps
08/20/1991US5041794 Voltage to current conversion switching system
08/20/1991US5041739 Substrate potential generating circuit
08/20/1991US5040640 Piezoresistive elevator button
08/20/1991CA1287883C Fm demodulator
08/20/1991CA1287878C Circuit arrangement for generating high voltage pulses
08/17/1991CA2036130A1 Circuit for surtching a microwave signal to one of two outputs
08/14/1991EP0441381A1 Capacitive occupation detector apparatus
08/14/1991EP0440862A1 Remotely-controllable lightswitch or button
08/14/1991DE4004353A1 Finger protection for motorised sliding roof or window in vehicle - using microprocessor operating on signals from detectors of wing drive position and approach of moving wing
08/14/1991DE4004186A1 Horizontal deflection stage with electronic switch for TV monitoring - has cascaded transistor switches between earth potential and voltage
08/14/1991CN2082945U Miniature photosensitive sound control lamp
08/14/1991CN2082944U Double saving swtich for lamp
08/14/1991CN2082943U Electronic energy-saving swtich
08/14/1991CN2082925U Photoelectric coding type electricity-saving switch
08/14/1991CN2082924U Multifunctional electricity-saving life-increasing switch for integrated circuit
08/14/1991CN2082923U Touch type time-delay switch with double lead wire
08/14/1991CN2082922U Multipurpose electronic pull-switch
08/13/1991US5040139 Transmission gate multiplexer (TGM) logic circuits and multiplier architectures
08/13/1991US5039963 Method for reducing signal-dependent distortion in switched-capacitor filters or the like
08/13/1991US5039883 Dual input universal logic structure
08/13/1991US5039875 CMOS power-on reset circuit
08/13/1991US5039874 Method and apparatus for driving an integrated-circuit output pad
08/13/1991US5039873 Microwave elements with impedance control circuits
08/13/1991US5039832 Touch button light ring system
08/09/1991CA2035415A1 Capacitive occupation detector apparatus
08/08/1991WO1991011859A1 Current-regulating circuit for an electromagnetic proportional control element
08/08/1991WO1990009491A1 Feed water controller
08/07/1991EP0440432A2 Power supply circuit having reset circuit
08/07/1991EP0440055A2 High speed inverting hysteresis TTL buffer circuit
08/07/1991EP0439586A1 Switching circuit employing an inductor and igbt devices
08/07/1991CN2082504U Delay automatic cut-off switch for lamp
08/07/1991CN2082501U Automatic heat preservable timer
08/07/1991CN2082487U Multifunctional inductive programmed controll switch of ac electric appliance
08/06/1991US5038189 Semiconductor laser driving circuit
08/06/1991US5038054 Protected Darlington transistor arrangement
08/06/1991US5038051 Solid state modulator for microwave transmitters
08/01/1991DE4101673A1 Current regulating circuit for EM proportional valve - provides current sensing in both supply and feedback paths with summing of both components
08/01/1991DE4035969A1 Transformer coupled power MOSFET switching circuitry - has capacitance-discharge FET coupled via diode to power FET for turn off
08/01/1991DE4003216A1 Pulse recognition circuit for thyristor emergency ignition arrangement - derives usable firing signal from protracted discharge of capacitor through input impedance of Schmitt trigger circuit
07/1991
07/31/1991EP0439276A2 Method for reducing signal-dependent distortion in switched-capacitor filters or the like
07/31/1991EP0439158A2 High speed level conversion circuit
07/31/1991EP0438953A1 High speed push-pull driver having current mirror pull-down
07/31/1991EP0438706A2 High speed cmos drive circuit
07/31/1991EP0438634A2 Evaluation circuit for a capacitive sensor
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