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)
11/1990
11/22/1990EP0398016A2 Driver circuits
11/22/1990EP0397727A1 Electronic appliance.
11/22/1990DE3916386A1 Temp. stable inductive proximity switch - has control coupled to emitter-collector circuit of oscillation transistor for compsn. current feed
11/22/1990DE3916173A1 Biasing voltage generating circuit - supplies transistor input with part of output current at transistor reference electrode
11/21/1990CN2066221U Fully-automatic energy-saving device for corridor illumination
11/21/1990CN2066211U Energy-saving electric heat regulator
11/21/1990CN2066210U Relay frequency splitting four-cycle controller
11/21/1990CN2066196U Jss series second-flicker digit-time relay
11/20/1990WO1990014716A1 Method and apparatus for controlling the operation of a solenoid
11/20/1990US4972517 Driver circuit receiving input voltage and providing corresponding output voltage
11/20/1990US4972157 Operational amplifier having selectable inputs
11/20/1990US4972130 Multipurpose, internally configurable integrated circuit for driving in a switching mode external inductive loads according to a selectable connection scheme
11/20/1990US4972107 Sensor circuit configuration
11/20/1990US4972104 TTL totem pole anti-simultaneous conduction circuit
11/20/1990US4972103 Accelerated switching input circuit
11/20/1990US4972101 Noise reduction in CMOS driver using capacitor discharge to generate a control voltage
11/20/1990US4972100 Data output buffer circuit for byte-wide memory
11/20/1990US4972089 Single package electro-optic transmitter-receiver
11/20/1990US4972069 Direct generation of ultrafast electrical pulses
11/20/1990US4971921 Semiconductor device and method of manufacturing the same
11/20/1990CA1276692C2 Monolithic switch
11/19/1990CA2017102A1 Output buffer for reducing switching induced noise
11/16/1990CA2016918A1 Transistor provided with a current detecting function
11/15/1990WO1990013944A1 Current-based computer logic architecture
11/15/1990WO1990013822A1 Control switch with monitored operating element
11/15/1990DE3915510A1 Low loss inverter circuit with energy feedback capability - has thyristor switching, voltage and current limitation by wattless components and transformer feedback to source
11/14/1990EP0397241A1 Driver for high voltage half-bridge circuits
11/14/1990EP0397102A2 Power delivery circuit with current sensing
11/14/1990EP0397093A1 Broadband space switch using path sensitizing
11/14/1990EP0397015A2 Instantaneous power limiting circuit
11/14/1990EP0396886A2 Current switch for use in telephony systems or the like
11/14/1990EP0396812A1 Threshold switch
11/14/1990CN2065804U Non-power consumption energy-saving time delay switch for filament lamp
11/13/1990US4970635 Inverter with proportional base drive controlled by a current transformer
11/13/1990US4970620 FET bridge protection circuit
11/13/1990US4970507 Broadband switching matrix for delay equalization and elimination of inversion
11/13/1990US4970452 Integrated circuit comprising a switchable current generator
11/13/1990US4970439 Power supply circuit for a gaseous discharge tube device
11/13/1990US4970434 Dielectric liquid pulsed-power switch
11/13/1990US4970420 Power field effect transistor drive circuit
11/13/1990US4970419 Low-noise transmission line termination circuitry
11/13/1990US4970411 Arrangement for improving the longterm stability of a Hall element
11/13/1990US4970409 Voltage multiplier for nonvolatile semiconductor memory
11/13/1990US4970408 CMOS power-on reset circuit
11/13/1990US4970405 Clock selection circuit for selecting one of a plurality of clock pulse signals
11/13/1990CA1276228C Automatic on/off circuit with time delay
11/09/1990CA2015808A1 Broadband space switch using path sensitizing
11/08/1990DE3923630A1 Stromquellen-spannungsnachfuehrschaltkreis zur stabilisierung von bitleitungen Current source spannungsnachfuehrschaltkreis for stabilization of bit lines
11/07/1990EP0396167A1 Protection device against the breakdown of bipolar transistors in an integrated driving circuit for power device with resonant load on the collector
11/07/1990EP0396119A1 Broadband switch using deactivated crosspoints for establishing switching paths
11/07/1990EP0396104A2 Bidirectional control rectifying semiconductor apparatus
11/07/1990EP0395770A2 Proximity switch
11/07/1990CN2065378U Integrated circuit time relay
11/07/1990CN2065355U Electronic microswitch
11/07/1990CN1010359B Gate signal generator for thyristor valve
11/06/1990USRE33422 Optically activated keyboard for digital system
11/06/1990USH843 High power RF generation with optically activated bulk GaAs devices
11/06/1990US4968953 Oscillation circuit for proximity switch
11/06/1990US4968927 Device for regulating delivery of ac power
11/05/1990CA2016190A1 Current-based computer logic architecture
11/04/1990CA2015809A1 Broadband switch using deactivated crosspoints for establishing switching paths
11/01/1990WO1990013180A1 Safety switch assembly
11/01/1990WO1990013178A1 Gate drive circuit for power transistor
10/1990
10/31/1990EP0395206A2 Logic circuit and method of operating same
10/31/1990EP0395146A1 Control circuit for at least one clock electrode of an integrated circuit
10/31/1990EP0395073A2 Light-triggered switching circuit
10/31/1990DE3914161A1 Interruption for mains appts. connection and transformer - limiting current of positive and negative rectified signals of each phase and summating by capacitor
10/31/1990DE3913798A1 Voltage free operation circuit for actuator - has capacitor charged from opto-coupler with switched discharge via second opto-coupler
10/31/1990CN2064960U 漫反射式红外自动开关 Diffuse Infrared Automatic Switch
10/31/1990CN2064933U Pull-switch with delay-action to turn off light automatically
10/31/1990CN1046649A Video switch arrangement
10/30/1990US4967336 Partitioning a motor control circuit
10/30/1990US4967309 Dual current sensing driver circuit
10/30/1990US4967131 Electronic motor starter
10/30/1990US4967110 Master-slice type integrated circuit including macrocells associated with delay circuit
10/30/1990US4967109 High efficiency gate driver circuit for a high frequency converter
10/30/1990US4967104 Circuit for increasing the output impedance of an amplifier
10/30/1990US4967103 Integrated logic circuit with protector transistor
10/30/1990US4967102 BiCMOS power up 3-state circuit having no through current in the disabled mode
10/30/1990US4967101 Pre-drive circuit
10/30/1990US4967100 Capacitive load driving apparatus
10/30/1990CA1275708C Semiconductor switching circuit
10/28/1990CA2013032A1 Power supply circuit for a gaseous discharge tube device
10/25/1990DE3912704A1 SHort power pulses generator - has parallel fed MOS FET groups in chain connection of specified configuration
10/24/1990EP0394057A2 Method and apparatus for preventing erroneous operation in non-contact push-button switch
10/24/1990EP0393947A2 Switch arrangement
10/24/1990EP0393876A2 High-power solid state relay
10/24/1990EP0393774A1 Circuit and data transmission device containing such activation
10/24/1990EP0393728A2 Current switching digital-to-analog converter
10/24/1990EP0393359A2 Inductive proximity switch
10/24/1990EP0393282A2 Signal conditioning circuits
10/24/1990EP0393224A1 Circuitry for controlling the temperature of integrated power switching transistors in a semi-conductor circuit
10/24/1990CN2064561U Auto turning-off light switches for use in stairs and corridors
10/24/1990CN2064529U Quadratically sound-controlled electronic music doorbell
10/24/1990CN1046430A Audio switching for audio/video system having s-video capability
10/24/1990CN1046421A Improvements in gate pulse generator for static var compensator
10/24/1990CN1010153B Circuit arrangement for protecting switch transistor
10/23/1990US4965710 Insulated gate bipolar transistor power module
10/23/1990US4965696 Voltage doubling driving circuit for controlling a field effect transistor having a source load
10/23/1990US4965547 Signal converter circuit
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