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)
12/1991
12/30/1991CA2044051A1 System and method for error detection and reducing simultaneous switching noise
12/27/1991EP0462124A1 Process and arrangement for operating a switching control.
12/27/1991EP0386114A4 A low power high voltage driver circuit
12/27/1991EP0340282A4 Two-mode driver circuit
12/25/1991CN2091516U Automatic control lighting device for stairs
12/25/1991CN2091510U Dual-winding induction switch
12/25/1991CN2091503U Voltage-stabilizing saving temp.-adjusting protector for refrigerator
12/25/1991CN1057370A Selfprotective driver for transistor switch
12/24/1991US5075642 Oscillator circuit
12/24/1991US5075632 Automatic control using proximity sensors
12/24/1991US5075572 Detector and integrated circuit device including charge pump circuits for high load conditions
12/24/1991US5075569 Output device circuit and method to minimize impedance fluctuations during crossover
12/24/1991US5075568 Switching bipolar driver circuit for inductive load
12/24/1991US5075567 Electronic switch circuit
12/24/1991US5075566 Bipolar emitter-coupled logic multiplexer
12/24/1991US5075542 Photoelectric switch using pulse width discrimination
12/24/1991US5074073 Car door safety device
12/24/1991CA1293531C Asynchronous marx generator utilizing photo-conductive semiconductor switches
12/19/1991DE4023529A1 Electronic proximity detection system with status indicator
12/18/1991EP0462034A1 Protecting device for semiconductor static relay
12/18/1991EP0462023A1 Static switch
12/18/1991EP0461982A1 Method for extension of the life time of a circuit with MOS-components subject to "Gamma" radiation
12/18/1991EP0461550A2 Electronic switching apparatus with state indicator
12/18/1991EP0461405A2 A transistor/transistor logic circuit having a clamped output
12/18/1991EP0461132A1 Circuit arrangement for reversing a magnetic field.
12/18/1991EP0265472B1 Optical keyboard with enhanced sensitivity
12/18/1991EP0238671B1 Semiconductor device
12/18/1991EP0185671B1 Touch operated keyboard
12/18/1991CN2091053U Special switch for passageway light
12/18/1991CN2091052U Timing stair lighting apparatus separately controlled by users
12/18/1991CN2091043U Dual-purpose switch controlled by touch and telecontrol
12/18/1991CN2091031U Automatic locating telecontroller for outdoor aerial
12/17/1991US5073727 Cmos inverter with noise reduction feedback means
12/17/1991US5073724 Programmable inverse time delay circuit
12/17/1991US5073723 Space charge current limited shunt in a cascode circuit for hvtft devices
12/17/1991US5073721 Noise immune power switch for automotive accessories
12/17/1991US5073718 Optical control of a microwave switch
12/17/1991US5073717 Optical control of a microwave switch
12/17/1991CA1293295C Mosfet fullbridge switching regulator having transformer coupledmosfet drive circuit
12/12/1991WO1991019354A1 Hysteresis circuit
12/12/1991WO1991019350A1 Circuit arrangement for regulating signals
12/12/1991DE4114363A1 Power control circuit for MOSFET with source load - has frequency of pulse oscillator feeding boot strap driver reduced for higher widths
12/11/1991EP0461054A1 Method and device for limiting overcurrents in an electrical circuit
12/11/1991EP0460758A2 Logic gate circuit with limited transient bounce in potential of the internal voltage supply lines
12/11/1991EP0460651A2 D/A converter
12/11/1991EP0460130A1 Dual current sensing driver circuit
12/11/1991CN2090588U Mltifunction electricity-saving protector for refrigerator
12/10/1991US5072439 High speed opto-electronic crossbar switch
12/10/1991US5072191 High-voltage pulse generating circuit, and discharge-excited laser and accelerator containing such circuit
12/10/1991US5072180 Temperature compensated method and apparatus for detecting the oscillation of a resonant circuit to determine distance or proximity
12/10/1991US5072143 Zero point detector for an optically controllable thyristor
12/10/1991US5072142 High frequency fet switch and driver circuit
12/10/1991US5072141 High speed high power H-bridge switch for inductive loads
12/10/1991US5072134 Internal voltage converter in semiconductor integrated circuit
12/05/1991DE4017780A1 Electronic metal component sensor device - uses component sensors providing sequential response signals upon component proximity
12/05/1991DE4017232A1 Proximity sensor for positions with difficult access - has sensor spaced from proximity position and coupled by soft magnetic link
12/04/1991EP0459478A2 Apparatus determining the relative movement of metal with respect to a metal sensitive detector arrangement
12/04/1991EP0459457A2 Output driver
12/04/1991CN2090129U Explosion protetion, mitigate corrosion waterproof electronic switch for industry
12/04/1991CN1056790A Saving lamp for stairs
12/03/1991US5070426 Clipper circuit for power transistor circuit and inverter circuit utilizing the same
12/03/1991US5070376 Semiconductor device
12/03/1991US5070295 Power-on reset circuit
12/03/1991US5070257 Circuitry for controlled rate of power application to CMOS microcircuits
12/03/1991US5070256 Bus transmitter having controlled trapezoidal slew rate
12/03/1991US5070255 Multi-level selecting circuit
12/03/1991US5070253 Solid state control circuit for a dual battery power supply
11/1991
11/28/1991WO1991018448A1 BiCMOS DIGITAL DRIVER CIRCUIT
11/28/1991WO1991018338A1 Switchable current source
11/28/1991DE4115253A1 Electronic proximity switch with e.g. cube-shaped housing
11/27/1991EP0458513A1 LCD touch screen
11/27/1991EP0458511A2 Thyristor protection method and apparatus
11/27/1991EP0458055A2 Pulse width modulation method for a convertor
11/27/1991EP0215924B1 Clock signal control circuit
11/27/1991CN2089684U Automatic lighting lamp by human body induction at night
11/27/1991CN2089677U Control switch of commercial electronic player
11/27/1991CN2089676U Electronic safety switch
11/27/1991CN2089675U Power saving switch with sound controlled, light-controlled and time delay functions
11/27/1991CN2089674U Non-zero type ac solid relay
11/27/1991CN1056609A Solid relay without voltage-drop
11/27/1991CN1056608A Switch circuit with positive feedback in current ratio
11/26/1991US5068703 Electronic circuit device
11/26/1991US5068592 Detector of the regulated voltage two wire type
11/26/1991US5068571 Switched bridge circuit
11/26/1991US5068548 Bicmos logic circuit for basic applications
11/26/1991US5068545 Digital/frequency input for industrial control applications
11/26/1991CA1292553C Solid state current limiting circuit interrupter
11/26/1991CA1292524C Ttl circuit with increased transient drive
11/26/1991CA1292521C Bus transmitter having controlled trapezoidal slew rate
11/25/1991CA2043100A1 Circuit for providing dv/dt immunity
11/21/1991EP0457595A1 Communication apparatus for transmitting and receiving communication signals through common transmission line
11/21/1991EP0456728A1 Power supply system.
11/21/1991DE4114966A1 Low-pass circuit for GTO thyristor ON pulses generation - has emitter of pulse shaping stage between transistor coupled to collector of limit stage power transistor
11/20/1991CN2089225U Delay controller for general switch
11/20/1991CN2089224U Multipurpose safety electronic pulling switch
11/20/1991CN2089223U Energy saving touching type electronic delay switch
11/19/1991US5067032 Head driver
11/19/1991US5066951 Circuit arrangement for adjusting the triggering point of an inductive keyboard
11/19/1991US5066929 Circuit for producing four indications on a bicolor light emitting diode having two leads
11/19/1991US5066875 Signal output circuit having bipolar transistors at output, for use in a mos semiconductor integrated circuit
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