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)
11/1991
11/19/1991US5066873 Integrated circuits with reduced switching noise
11/19/1991US5066872 Speed-up technique for a constant di/dt buffer
11/19/1991US5066871 Maximum swing cascode circuit for a bipolar charge pump
11/19/1991US5066870 Charge pump having pull-up circuit operating with two clock pulse sequences
11/19/1991US5066869 Reset circuit with PNP saturation detector
11/19/1991US5066856 Optical micro-switch apparatus
11/14/1991WO1991017569A1 Superconducting-semiconducting circuits, devices and systems
11/14/1991DE4021164C1 Inductive proximity circuit for machine tool - has oscillator transistor output signal compared with external signal for switching initiation
11/13/1991EP0456623A2 Circuitry and method for selectively switching negative voltages in CMOS integrated circuits
11/13/1991EP0456482A1 Photoelectrical switching circuit
11/13/1991EP0456354A2 Integrated circuit buffer with improved drive capability
11/13/1991EP0456251A2 Logic gate
11/13/1991EP0456231A1 Programmable delay circuit
11/13/1991EP0456131A2 Photoelectric sensor
11/13/1991CN2088771U Road lamp antomatic switch
11/13/1991CN2088761U Multi-function switch for electric heating blanket
11/13/1991CN2088748U Socket with timing cutting off device
11/13/1991CN1056206A Switching apparatus with cascaded switch sections
11/12/1991US5065057 Analog signal input circuit
11/12/1991US5065052 Arbiter circuit using plural-reset rs flip-flops
11/12/1991US5065049 MOS driver circuit having clamp means to hold the output voltage constant regardless of variations in the operating voltage
11/12/1991US5065044 Method for driving a pnpn semiconductor device
11/12/1991US5063622 Water supply control system
11/12/1991CA1292044C Cmos integrated circuit fan-in logic tree layout arrangement
11/12/1991CA1292034C Safety switching means for controlling a current consumer
11/07/1991DE4013997A1 DC current controller for inductive loads - uses by=pass semiconductor blocks with progressive switching to minimise component stress
11/07/1991DE4013743A1 Optical proximity switch - uses cylinder-mounted prism with axially-symmetrical faces to provide high precision adjustment
11/06/1991EP0455613A2 Inductive proximity sensor and position transducer with a passive scale
11/06/1991EP0455572A2 Complementary MOS driver device
11/06/1991EP0455130A1 Switching apparatus with cascaded switch sections
11/06/1991CN2088314U Anti-jamming light-controlling energy-saving switch
11/06/1991CN2088309U Full-automatic infrared energy-saving controller
11/06/1991CN1056025A All electronic timer
11/05/1991US5063488 Switching power source means
11/05/1991US5063355 Timer circuit
11/05/1991US5063343 Current pump structure
11/05/1991US5063307 Insulated gate transistor devices with temperature and current sensor
11/05/1991US5063306 Proximity sensing device
11/05/1991US5063303 Soft start circuit
10/1991
10/31/1991WO1991016765A1 Switch for inductive loads
10/31/1991WO1991016721A1 Multiple connected photoelectric switch device
10/31/1991DE4112087A1 Overvoltage limiting circuit for semiconductor switch - has rapid diode in series with varistor for preventing oscillation
10/31/1991DE4031252C1 Inductive proximity switch - detects coil induced voltage difference which is fed to input of oscillator amplifier
10/31/1991CA2060200A1 Antihepatopathic composition
10/31/1991CA2040964A1 Rf drive circuit for an ion projection printing head
10/30/1991EP0454597A1 Pulse gate control circuit with short-circuit protection
10/30/1991EP0454523A1 Touch sensitive device and keyboard using such a device
10/30/1991EP0454012A2 Test device with D.C. current source
10/30/1991EP0453744A1 Nonlinear transmission lines having noncommensurate varactor cells
10/30/1991EP0453508A1 Oscillator stabilized against variations in temperature for oscillating circuits.
10/29/1991US5061864 Monophase logic
10/29/1991US5061863 Transistor provided with a current detecting function
10/29/1991US5061859 Circuits for realizing an optical isolator
10/24/1991DE4012843A1 GTO thyristor operating method - having additional supply to gate to cause breakdown after closed period
10/24/1991DE4012382A1 Power semiconductor switching off method for switch protection - has discharge of switch capacitance before turn off only in overload conditions
10/24/1991DE4012356A1 Switching transistor operating method - having base current adaptively controlled to minimise dissipation using microcomputer
10/23/1991EP0453376A2 Static switch for medium voltage
10/23/1991EP0453040A1 Power amplifier, in particular for square wave signals
10/23/1991EP0452919A2 Bi-MOS semiconductor integrated circuit
10/23/1991EP0452747A2 Ground bounce isolation network
10/23/1991EP0452321A1 Signal conditioning device
10/23/1991CN2087400U Three-phase a.c. power saving switch without contacting point
10/23/1991CN2087399U Timer with microprocessor
10/23/1991CN2087398U Electronic timed switch
10/23/1991CN2087397U All-electronic timer
10/23/1991CN2087396U Long life delay switch
10/22/1991US5060192 Cross-point switch
10/22/1991US5059835 Cmos circuit with programmable input threshold
10/22/1991US5059831 Buffer circuit with an electrostatic protector
10/22/1991US5059830 Integrated circuit using bus driver having reduced area
10/22/1991US5059825 Nand gate circuit
10/22/1991US5059824 BiCMOS output circuit with static output current control circuit
10/22/1991US5059823 Supply bounce controlled output buffer circuit
10/22/1991US5059822 Method and apparatus for controlling noise on power supply buses
10/22/1991US5059821 Bi-CMOS driver with two CMOS predrivers having different switching thresholds
10/22/1991US5059809 Light-responsive device for a photoelectric switch
10/22/1991US5059783 Interferometric fiber optic proximity switch
10/22/1991US5059782 Multi-function detection circuit for a photoelectric switch using an integrated circuit with reduced interconnections
10/22/1991CA1291225C Slow-start system for a control circuit
10/17/1991WO1991015898A1 Fet amplifying circuits and methods of operation
10/17/1991WO1991015257A1 Iontophoretic delivery device
10/17/1991DE4112084A1 Reverse blocking thyristor for control of electronic flash - easily blocks and unblocks flash in reaction to gate-switching of cascode-connected N=channel MOSFET
10/17/1991DE4110340A1 Digital multiplexer-controlled delay generator - uses groups of current-switching elements to vary propagation delay in connection input voltage to load
10/17/1991CA2038894A1 Piezoelectric snap action switch
10/17/1991CA2014724A1 Switch for inductive loads
10/16/1991EP0452049A2 Thyristor switch gate pulse generator
10/16/1991EP0451973A2 A transistor logical circuit
10/16/1991EP0451406A1 Electronic device with removable operating unit
10/16/1991EP0451378A1 FET amplifying circuits and methods of operation
10/16/1991EP0451324A2 Semiconductor switch
10/16/1991CN2086961U Energy-saving switch of lamp with timing delay control
10/16/1991CN2086960U Energy-saving electronic timing switch for street lamps
10/16/1991CN2086949U Full-automatic microwave switch
10/16/1991CN1055452A Energy-saving inductive circuit for lighting lamp and warning device
10/15/1991US5057721 Level shift circuit for controlling a driving circuit
10/15/1991US5057720 Output buffering H-bridge circuit
10/15/1991US5057719 Passively forced current sharing among transistors
10/15/1991US5057713 Bipolar MOS logic circuit and semiconductor integrated circuit
10/15/1991US5057711 Noise reducing output buffer circuit for an integrated circuit
10/15/1991US5057709 Current threshold detector circuit
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