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)
08/1989
08/15/1989US4857887 Laminated piezoelectric keyboard
08/15/1989US4857863 Low power output driver circuit with slew rate limiting
08/15/1989US4857841 Proximity detector employing magneto resistive sensor in the central magnetic field null of a toroidal magnet
08/15/1989US4857828 Method and apparatus for detecting presence of objects
08/15/1989US4857780 High withstand voltage output
08/15/1989US4857770 Output buffer arrangement for reducing chip noise without speed penalty
08/15/1989US4857763 MOS semiconductor integrated circuit in which the production of hot carriers near the drain of a short n channel conductivity type MOS transistor is decreased
08/15/1989US4857684 Capacitance membrane switchcore with intertrace capacitive coupling and/or intratrace capacitive coupling
08/10/1989WO1989007340A1 Electronic appliance
08/09/1989EP0327160A1 Integrated circuit comprising logic circuits and at least one push-pull stage
08/09/1989EP0327159A1 Logic circuit comprising a switched anti-stress transistor
08/09/1989EP0327082A2 Electrical switch
08/09/1989EP0326968A1 A driving circuit having an electrical characteristics variable in response to its load resistance
08/09/1989EP0326954A2 BiCMOS power transition circuit
08/09/1989EP0326897A2 Adder cell with sum and carry parts
08/09/1989CN2042562U Touching type full automatic flash light
08/08/1989US4855696 Pulse compressor
08/08/1989US4855666 AC current switch
08/08/1989US4855625 Operational amplifier having low DC current input circuit
08/08/1989US4855623 Output buffer having programmable drive current
08/08/1989US4855622 TTL compatible switching circuit having controlled ramp output
08/08/1989US4855615 Switching circuit avoiding glitches at the instant of switch-over between two clock signals
08/08/1989US4855614 Electronic switching apparatus having impedance matching circuitry for ultra-high frequency signals
08/08/1989US4855550 White touch pads for capacitive touch control panels
08/08/1989US4854292 Ignition system for internal combustion engine
08/02/1989EP0325884A2 Keyboard arrangement with ghost key condition detection
08/02/1989EP0148855B1 Parallel mosfet power switch circuit
08/02/1989CN2042259U Silicon-controlled short-circuit and overcurrent protector
08/01/1989USRE33004 Apparatus and method for selectively activating plural electrical loads at predetermined relative times
08/01/1989US4853854 Human behavior modification which establishes and generates a user adaptive withdrawal schedule
08/01/1989US4853834 Device for maintaining the cut-off switching state of a thyristor that can be turned off
08/01/1989US4853666 Push button for an inductive value input keyboard
08/01/1989US4853629 Hall-Effect position sensing system and device
08/01/1989US4853563 Switch interface circuit for power mosfet gate drive control
08/01/1989US4853559 High voltage and power BiCMOS driving circuit
08/01/1989CA1258104A1 Current switch capable of producing a stable output of a desired level
08/01/1989CA1258103A1 Gate circuit
07/1989
07/27/1989WO1989006893A1 Current summed optoelectronic crossbar switch
07/26/1989EP0325391A2 Pseudo-ternary code transmitter
07/26/1989EP0325344A2 Transfer circuit for signal lines
07/26/1989EP0325301A2 Power control apparatus
07/26/1989CN2041877U Electrodelay system of lamplight
07/26/1989CN2041864U Power-saving, protective device for household frigidarium
07/26/1989CN2041855U Automatic time delay switch of stair light
07/25/1989US4852145 Telephone subscriber loop test system
07/25/1989US4852083 Digital crossbar switch
07/25/1989US4852022 Instructions seqencer for microprocessor with matrix for determining the instructions cycle steps
07/25/1989US4851954 Monitoring apparatus for monitoring temperature in a circuit arrangement
07/25/1989US4851721 Semiconductor integrated circuit
07/25/1989US4851712 Semiconductor circuit for driving a load circuit with power supplied independently
07/25/1989US4851689 Photodetecting circuit
07/25/1989US4851662 Refrigerator ice dispenser light with photosensitive switch
07/25/1989CA1257924A1 Optical switch circuit
07/20/1989DE3900426A1 Semiconductor arrangement
07/19/1989EP0324606A1 Multifunctional optoelectronic control apparatus
07/19/1989EP0324487A2 Circuit arrangement for determination of the end of disconnection time interval of a switch comprising at least one bipolar transistor
07/19/1989EP0324486A2 Circuit arrangement for compensation of the tripping time of an electric current switch
07/19/1989EP0324456A2 An output circuit of a charge transfer device
07/19/1989EP0324228A2 Elevator control switch and position indicator assembly
07/19/1989CN2041467U Automatic high-efficiency energy-saving swich
07/19/1989CN2041466U Music integrated circuit block multipurpose controller for household electric appliances
07/18/1989US4849948 Self-contained disposable timer for use with medication
07/18/1989US4849852 Variable capacitance push-button switch
07/18/1989US4849751 CMOS Integrated circuit digital crossbar switching arrangement
07/18/1989US4849683 Lamp driver circuit with controlled power over a range of power supply voltages
07/18/1989US4849659 Emitter-coupled logic circuit with three-state capability
07/18/1989US4849656 Power-on detection circuit
07/18/1989US4849654 Semiconductor integrated circuit with input protection circuit
07/18/1989US4849649 Electric pulse generator of the type with a saturatable inductance coil
07/13/1989WO1989006439A1 Solar cell array for driving mosfet gates
07/12/1989EP0323813A1 A device for the thermal protection of an integrated electronic power circuit
07/12/1989EP0323714A2 MOS-controlled bidirectional semiconductor switch
07/12/1989EP0323578A2 Crosspoint switching array
07/12/1989CN2041084U Electricity-saving device
07/12/1989CN2041083U 缓冲开关 Buffered switch
07/12/1989CN2041082U Timer for darkroom
07/12/1989CN1033917A Dc/ac bridge circuit
07/11/1989US4847828 Analog data signal switching network with means for cross-connecting analog signals to output lines by double-stage sampling
07/11/1989US4847824 Readback circuits for magnetooptic players
07/11/1989US4847570 Electronic, contactless switchgear
07/11/1989US4847549 Switching voltage regulator with stabilized loop gain
07/11/1989US4847522 Output circuit
07/11/1989US4847520 Fast PNP transistor turn-off circuit
07/11/1989US4847519 Integrated, high speed, zero hold current and delay compensated charge pump
07/11/1989US4847517 Amplifying an electrical input signal
07/11/1989US4847515 Static relay and application thereof to a bipolar inverter or to a load in which a current flows in a random direction
07/11/1989US4847514 Light-actuated superconducting integrated circuit device
07/11/1989US4847507 Fiber optic guard crossing of circuits having analog and digital sections
07/11/1989CA1257342A1 Integrated logic circuit incorporating a module which generates a control signal that cancels switching noise
07/05/1989EP0323367A1 Power-on reset circuit for a MOS integrated circuit
07/05/1989EP0322899A2 Piezo electric vibrator pump
07/05/1989EP0322618A2 Clock selection circuit
07/05/1989EP0322447A1 Cmos input buffer receiver circuit
07/05/1989CN2040684U Supersonic telecontrol multipurpose single circuit switch
07/05/1989CN2040683U Universal infrared closed switch
07/05/1989CN2040682U Direct temporary state delayer
07/05/1989CN2040681U Circular coloured lamp controller with periodicity automatic speed change
07/04/1989US4845442 High speed current limiting sense amplifier
07/04/1989US4845429 Inductance divider sensor
07/04/1989US4845420 Drive circuit device for inductive load
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