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)
10/1990
10/23/1990US4965509 For controlling power flow an AC source to a load
10/23/1990US4965471 BI-CMOS clock driver with reduced crossover current
10/23/1990US4965466 Substrate injection clamp
10/23/1990US4965464 Power amplifier circuit for integrated digital circuits
10/23/1990CA1275440C Rfi suppression technique for switching circuits
10/19/1990WO1990013177A1 Circuits with switching protection and parts therefor
10/19/1990CA2051668A1 Circuits with switching protection and parts therefor
10/18/1990WO1990012475A1 Circuit for modulation and distribution of alternative electric power
10/18/1990WO1990012452A1 Optical receivers
10/18/1990WO1990012324A1 Voltage selector and comparator used therewith
10/18/1990DE3912468A1 Pull-up for rapid signal output - has pull-up resistor integrated with, or formed by suppressor capacitor
10/18/1990DE3912176A1 Darlington transistor e.g. for bridge circuit - has delays of charge extraction diodes decreasing from input transistor diode to driver diode
10/17/1990EP0392831A2 Power transistor drive circuit with improved short circuit protection
10/17/1990EP0392552A2 Audio switching for an audio/video system having S-video capability
10/17/1990EP0392530A2 Drive circuit for an IGBT device
10/17/1990EP0392458A2 Improvements in gate pulse generator for static var compensator
10/17/1990EP0392373A2 Circuit device for potentialfree driving of a field effect transistor
10/17/1990CN2064136U Non-contact power source controlling device of plastic sealing maching
10/17/1990CN2064135U Touch remote-controlled switch used on wall
10/17/1990CA2010680A1 Video switch arrangement
10/17/1990CA2009581A1 Current controlled full wave transistor bridge inverter for a multiple phase ac machine
10/16/1990US4964123 Resetting circuit for a microcomputer
10/16/1990US4964026 Noise reduction technique for PWM controllers
10/16/1990US4963774 Intermediate potential setting circuit
10/16/1990US4963773 Low pass/high pass filter phase shifter
10/16/1990US4963767 Two-level ECL multiplexer without emitter dotting
10/16/1990US4963727 Active quenching circuit for avalanche photodiodes
10/16/1990US4963021 Photoelectric switching apparatus
10/16/1990CA1275311C Integrated bistable electronic commutator with a low voltage drop
10/11/1990DE4007468A1 Control circuit for pulsed magnets - avoids high peak current loading of battery
10/11/1990DE3911464A1 Method for protecting a gate turn-off thyristor against short circuit
10/11/1990DE3911431A1 Integratable free-wheeling circuit
10/11/1990DE3910977A1 Computer input device
10/11/1990DE3910958A1 Regenerating-type pulsed driver
10/11/1990DE3910684A1 Optoelectrical proximity switch
10/10/1990EP0391671A2 Single package electro-optic transmitter-receiver
10/10/1990EP0391126A1 Electronic proximity switch
10/10/1990EP0390966A2 Simplified driver for controlled flux ferrite phase shifter
10/10/1990EP0390780A1 High-voltage switch.
10/10/1990CN2063724U Both touch and turn-on-off controllable time delay switch for passageway
10/10/1990CN2063723U Ultraviolet light remote control switch
10/10/1990CN2063722U Energy-saving time-delay switch
10/10/1990CN2063708U Intelligence integral protective device for electric refrigerator
10/09/1990USRE33378 Incremental base drive circuit for a power transistor
10/09/1990US4962413 Analog switch with minimized noise ascribable to gate capacitance
10/09/1990US4962379 Arbiter circuit for processing concurrent requests for access to shared resources
10/09/1990US4962350 Load condition detecting and driving system
10/09/1990US4962346 Transitory current recirculation through a power switching transistor driving an inductive load
10/09/1990US4962345 Current limiting output driver
10/09/1990US4962343 Signal transmission circuit
10/09/1990US4962321 Three terminal replacement for unijunction transistor
10/09/1990US4962320 Input protection circuit for MOS device
10/04/1990WO1990011647A1 Electrical quenching circuit
10/03/1990EP0389862A2 Turn-off thyristor
10/03/1990EP0389584A1 Transistor breakdown protection circuit.
10/03/1990CN2063319U Micro-consumption long-delay timing switch
10/02/1990US4961100 Bidirectional field effect semiconductor device and circuit
10/02/1990US4961054 Gradient current speed-up circuit for high-speed NMR imaging system
10/02/1990US4961015 MOS current switching circuit
10/02/1990US4961010 Output buffer for reducing switching induced noise
10/02/1990US4961006 Inductively loaded switching transistor circuit
10/02/1990CA1274882A1 Configurable electrical circuit having configurable logic elements and configurable interconnects
09/1990
09/27/1990DE3909073A1 Method and circuit arrangement for continuous fail-safe testing of an infrared sensor device
09/26/1990EP0389154A2 Self-oscillating converter with light load stabilizer
09/26/1990EP0388896A2 Buffer circuit with an electrostatic protector
09/26/1990EP0388856A2 Coupling device for broad-band signals
09/26/1990EP0388767A2 Anti-Noise circuits
09/26/1990EP0388616A2 Overcurrent protective circuit for electrostatic self-turn-off devices
09/26/1990EP0388569A2 Circuit to detect a voltage power drop and to restore the initial circuit condition
09/26/1990EP0388477A2 Proximity switch
09/26/1990EP0203354B1 Process and circuit for the control of a valve
09/26/1990CN2062935U Contactless steering flash relay for motor-driven vehicle
09/26/1990CN2062934U Automatic controlling switch for public incandescent lamp
09/26/1990CN2062933U Automatic road lamp contsoller with tv signal control
09/26/1990CN2062924U Human body in duction device for alarm
09/26/1990CN1009789B Tc trigger charging delay switch
09/25/1990US4959703 Turn-on/off driving technique for insulated gate thyristor
09/25/1990US4959565 Output buffer with ground bounce control
09/25/1990US4959562 Semiconductor integrated circuit
09/25/1990US4959558 Circuit arrangement for detecting cross-over by an alternating voltage of a fixed reference voltage level
09/25/1990CA1274581A1 High voltage solid state switch
09/22/1990CA2012671A1 Anti-noise circuits
09/20/1990WO1990010972A1 Process and arrangement for operating a switching control
09/20/1990DE4007979A1 Elektronischer schalter mit einem lichtempfindlichen halbleiter Electronic switch with a light-sensitive semiconductor
09/20/1990DE4007978A1 Output driver circuitry with min. transition impedance variations - has two pulse expanders, first one in high pass signal release, and second one in low pass signal release
09/20/1990DE3908338A1 Method and device for controlling a load, especially in motor vehicles
09/19/1990EP0388329A1 Driver circuit of a power MOS transistor with inductive load
09/19/1990EP0388116A1 Timer circuit
09/19/1990EP0387961A1 A DC-to-AC voltage converter having galvanically separate input and output circuits
09/19/1990EP0387939A1 Differential amplifiers
09/19/1990EP0387890A1 Method of transmitting pulse signal and apparatus therefor
09/19/1990EP0387792A1 Output buffer circuit
09/19/1990EP0387789A2 Broadband switching matrix for delay equalization and elimination of inversion
09/19/1990EP0387788A2 Broadband switch matrix with non-linear cascading
09/19/1990EP0387730A2 Electronic contactor with emergency shut-down
09/19/1990EP0387729A2 Electronic control for contactor
09/19/1990EP0387721A2 Thyristor having a particular switching behaviour
09/19/1990EP0387463A1 Improvements to complementary emitter follower drivers
09/19/1990EP0387461A1 Improved BICMOS logic circuit with full swing operation
09/19/1990CN2062540U Warning lamp controlled by microwave switch
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