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)
11/1993
11/13/1993CA2095792A1 Switchable inductor for strong currents
11/11/1993WO1993022836A1 Sliding contact control switch pad
11/11/1993WO1993022835A1 Drive circuitry for a mos field effect transistor
11/11/1993WO1993022834A1 Circuit for the fast turning off of a field effect transistor
11/11/1993WO1993022825A1 Efficient transistor drive circuit for electrical power converter circuits and the like
11/11/1993DE4315253A1 Control circuit for insulated-gate bipolar transistor - includes opto-coupler with forward and reverse bias voltages and two time constants giving different control voltages at gate
11/10/1993EP0569114A2 Switch circuit
11/10/1993EP0568973A2 Level switch
11/10/1993CN2146096Y Full automatic lighting switch for protecting vision
11/10/1993CN2146086Y Indicating induction switch
11/10/1993CN2146054Y Wall combined delayed switch
11/10/1993CN2146027Y Microcomputerized timing protection automatic voltage stabilizing controller
11/10/1993CN2145838Y Station change error-proof locking device
11/09/1993US5261015 Magnetically-actuatable opto-mechanical on/off switch and systems for use therewith
11/09/1993US5260901 Output circuit of semiconductor memory device
11/09/1993US5260863 Control of a discontinuous current by a thyristor rectifier with inductive load
11/09/1993US5260607 Snubber circuit for power converter
11/09/1993US5260594 Semiconductor device reducing internal noises and integrated circuit employing the same
11/03/1993EP0568440A1 Detection circuit having voltage thresholds
11/03/1993EP0568428A1 Snubber device for power switching components connected in series in an electric energy converter supplied with DC electric energy
11/03/1993EP0568422A1 Voltage comparator with very low consumption
11/03/1993EP0568353A1 Control device for double gate semiconductor device
11/03/1993EP0568343A1 A contact sensitive substrate
11/03/1993EP0568342A1 A touch sensitive device
11/03/1993EP0568279A1 High frequency resonant gate drive for a power MOSFET
11/03/1993CN2145477Y Intelligence high-power electronic relay
11/02/1993US5258947 MOS fuse with programmable tunnel oxide breakdown
11/02/1993US5258902 Snubber circuit located between an output line and low impedance potential
11/02/1993US5258763 Superconducting non-linear device
11/02/1993US5258670 Light triggered & quenched static induction thyristor circuit
11/02/1993US5258662 Micropower gate charge pump for power MOSFETS
11/02/1993US5258655 Apparatus for electrically switching between peripheral devices
10/1993
10/28/1993WO1993021690A1 Power driver circuit
10/28/1993WO1993021686A1 Circuit arrangement for mitigating power switch capacitance
10/28/1993DE4130981C2 Verfahren zum Betrieb eines Zeitglieds A method for operating a timer
10/27/1993EP0566885A1 pnpn Semiconductor element and driver circuit therefor
10/27/1993EP0566739A1 Semiconductor device
10/27/1993CN2144898Y AC photoelectric switch
10/27/1993CN2144897Y Electronic timer
10/27/1993CN2144895Y Electronic adjuster with voltage regulating and timing function
10/27/1993CN1077827A Power supply method for general double-wire SCS drive circuit
10/26/1993US5257155 Short-circuit proof field effect transistor
10/26/1993US5257025 High-speed sampling arrangement and apparatus using same
10/26/1993US5256913 Low power optoelectronic device and method
10/26/1993US5256909 Electronic, preferably zero-contact switch
10/26/1993US5256905 Method and circuit for sequentially connecting plural loads to an a.c. voltage without damaging the low voltage control circuitry therefor
10/26/1993US5256882 Signal transmission circuit having a latch-up function
10/26/1993US5256842 Cover for a sensor button
10/21/1993DE4312050A1 MOSFET output circuit with open drain - reduces rate of change of control voltage when changed from high level to low level
10/20/1993EP0566373A2 Circuitry and method for latching a logic state
10/20/1993EP0566337A2 Matrix type surface pressure distribution detecting element
10/20/1993EP0566336A2 Semiconductor matrix type sensor for very small surface pressure distribution
10/20/1993EP0565807A1 MOS power transistor device
10/20/1993EP0565806A1 Accurate MOS threshold voltage generator
10/20/1993EP0512009A4 Temperature-sensing control system and method for integrated circuits
10/20/1993EP0365618B1 Electronic control circuits, electronically commutated motor systems and methods
10/20/1993CN2144386Y Acoustooptic controlled delay switch
10/20/1993CN2144372Y Acoustooptic controlled energy-saving switch
10/20/1993CN2144371Y 电子定时控制器 Electronic timing controller
10/20/1993CN2144228Y Electronic remote alarm control valve for acetylene
10/20/1993CN2144227Y Electronic control valve for preventing explosion and leakage of fuel gas
10/20/1993CN1077575A Auto-counting power switch
10/19/1993US5255240 One stage word line decoder/driver with speed-up Darlington drive and adjustable pull down
10/19/1993US5254994 Current source cell use in current segment type D and A converter
10/19/1993US5254890 Ground bouncing reducing circuit and method
10/19/1993US5254882 Method and device for processing two separately referenced signal levels
10/19/1993US5254879 Safety switch assembly
10/19/1993CA1323416C Rf switch
10/19/1993CA1323411C Actuation device for electrical appliance
10/14/1993WO1993020610A1 Compact and efficient transformerless power conversion system
10/14/1993WO1993020535A2 Joystick
10/14/1993WO1992017938A3 Differential driver/receiver circuit
10/14/1993DE4310323A1 Overcurrent protection appts. for power device, esp. IGBT - interrupts current supply when current magnitude is detected for time period which is not shorter than permitted period
10/14/1993DE4212291A1 Vehicle door lock arrangement - triggers electrical switch operation to open door manually and monitors lock user's fingers
10/14/1993CA2132971A1 Compact and efficient transformerless power conversion system
10/14/1993CA2065881A1 Detachable touch-control lamp switch
10/13/1993EP0564951A1 Micro switch having Hall sensors
10/13/1993CN2143850Y Wind-electric closing delay device
10/13/1993CN1077327A Automatic switch for corridor lights
10/13/1993CN1022449C Low power consumption digital controlled silicon controlled rectifier voltage and current over-zero trigger
10/13/1993CN1022379C Time-sharing multimode controller for bionic spectrum therapeutic apparatus
10/12/1993US5252907 Circuit arrangement for mitigating power switch capacitance
10/12/1993US5252826 Differential pressure utilizing opto-reflective sensor
10/12/1993CA1323080C Low-noise transmission line termination circuitry
10/07/1993DE4304262C1 Multiplexer device using current switches - uses two parallel transistor for each switch, controlled by selection signal and third transistor providing circuit output
10/06/1993EP0564390A2 High-speed bipolar-field effect transistor (BI-FET) circuit
10/06/1993EP0564164A1 Capacitive proximity sensors
10/06/1993EP0564066A1 Unit panel structure for a door trim
10/06/1993EP0563633A1 Circuit arrangement for phase angle control
10/06/1993CN2143388Y Automatic water-saving tap
10/06/1993CN2143370Y Remote controlled socket for supply of domestic electric appliance
10/06/1993CN1022353C Magneto-optical recording apparatus and energizing circuit
10/05/1993US5251173 High-speed, low DC power, PNP-loaded word line decorder/driver circuit
10/05/1993US5250854 Bitline pull-up circuit operable in a low-resistance test mode
10/05/1993US5250853 Circuit configuration for generating a rest signal
10/05/1993US5250852 Circuitry and method for latching a logic state
10/05/1993US5250801 Optical sensor for detecting articles in a monitored region and method for operating the same
09/1993
09/30/1993DE4210018A1 Inductive proximity switch for welding appts. - has non-ferrite coil contained within switch housing and enclosed by earthed screening for preventing induced voltages
09/30/1993DE4209747A1 Current limiting circuit e.g. for relay or other inductive load - includes reference Zener diode to earth from control electrode of transistor switch having load in collector circuit
09/30/1993DE4209396A1 Electronic contactless load switching device esp. for optical proximity switch - uses DC=DC converter controlled by output of switching amplifier and coupled to control electrode of power MOSFET
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