Patents
Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158)
03/1987
03/04/1987EP0212004A2 A solid state inverting circuit having a bipolar transistor for rapidly processing I/O signals
03/04/1987EP0211960A1 Matrix switching circuit
03/04/1987EP0211866A1 Integrated circuit having a variably boosted node.
03/04/1987CN86201564U Instantaneous electricity supply protector for refrigerator and air conditioner
03/04/1987CN86104894A Protective trigger of crystal shutter tube in impulsaator
03/03/1987US4647800 High speed logic apparatus
03/03/1987US4647797 Assist circuit for improving the rise time of an electronic signal
03/03/1987US4647794 Solid state relay having non overlapping switch closures
03/03/1987US4647792 High speed laser driver
03/03/1987US4647791 Generator for producing multiple signals which are synchronous with each other
03/03/1987US4647788 Infrared radiation bi-level electric control
02/1987
02/26/1987DE3605499C1 Electronic switching device preferably operating contactlessly
02/26/1987DE3529742A1 Device for regulating the current through inductive loads
02/26/1987DE3445081A1 Invisible electronical light switch
02/25/1987EP0211700A1 Small size binary information-transmitting device by a pulse transformer with DC component reconstitution
02/25/1987EP0211553A1 Power-on reset circuit arrangements
02/25/1987EP0211005A1 Transistor inverter interlock circuit
02/24/1987US4646124 Level shifting BIMOS integrated circuit
02/24/1987US4645958 Variable delay gate circuit
02/24/1987US4645957 Normally-off semiconductor device with low on resistance and circuit analogue
02/24/1987US4645950 Two-lead Hall effect sensor
02/24/1987US4645949 Circuit arrangement for enhancing the utilizable hall-signal of hall sensor
02/24/1987US4645945 Switching control circuit for a power transistor
02/24/1987US4645944 MOS register for selecting among various data inputs
02/24/1987US4645919 Photosensitive motion detector apparatus
02/24/1987US4645148 Fail-safe voltage-limiting circuit for an audio frequency overlay track circuit
02/19/1987DE3546513A1 Method and circuit for operating a gas inlet or exhaust valve
02/19/1987DE3529068A1 Configuration for forced turning-off of a thyristor
02/17/1987US4644571 Timer
02/17/1987US4644353 Programmable interface
02/17/1987US4644330 Anti-snoring device
02/17/1987US4644315 Push-button switch
02/17/1987US4644298 Proximity switch
02/17/1987US4644258 Electronic switch
02/17/1987US4644255 Free wheeling diode control circuit for motor speed control with reverse voltage protection
02/17/1987US4644240 Method and apparatus for controlling reverse-conducting GTO thyristor
02/17/1987US4644190 Dynamic MOS circuit
02/17/1987US4644186 Fast switching circuit for lateral PNP transistors
02/17/1987US4643558 Electronic power supply
02/12/1987WO1987000933A1 Detector device
02/12/1987WO1987000743A1 Method and apparatus for dispensing flowable material
02/12/1987DE3527675A1 Damping circuit for overvoltages (snubber)
02/12/1987DE3527650A1 Method and circuit arrangement
02/10/1987US4642750 Circuit arrangement for switching a current in an inductive load
02/10/1987US4642553 Commutator containing a semiconductor with unidirectional current and bidirectional voltage, and with controlled interruption and automatic ignition
02/10/1987US4642491 Single transistor driver circuit
02/10/1987US4642486 Decoder circuit using transistors or diodes of different characteristics
02/10/1987US4642485 Digital switching circuit having insulated gate field effect transistors for clamping the nonconductive output transistor off
02/10/1987US4642483 Reverse bias current supply system for a switching device
02/10/1987US4642455 Circuit arrangement using for a light barrier for detecting sheet-feeding faults in a printing press
02/10/1987CA1217812A Circuit arrangement for the compensation of reactive power in an electrical alternating-current power system
02/05/1987DE3526992A1 Device for switching an electrical load on and off, and use of such a device
02/05/1987DE3526175A1 Input changeover switch for a satellite receiving circuit
02/04/1987EP0210643A1 Device for treating ferromagnetic materials with magnetic pulses
02/04/1987EP0210495A2 Free-wheel circuit
02/04/1987EP0210386A1 Foil keyboard with piezoelectric keys
02/04/1987EP0210367A2 Device for controlling optocouplers by pulses
02/04/1987EP0210299A2 Protection arrangement for switching device of a capacitive load pulser circuit
02/04/1987EP0210298A2 False triggering protection for switching device of a capacitive load pulser circuit
02/03/1987US4641219 Low noise solenoid drive
02/03/1987US4641132 Condition-responsive switching circuit
02/03/1987US4641049 Timing signal generator
02/03/1987US4641044 Clock generator with reset and initialization circuitry
02/03/1987US4641026 Optically activated keyboard for digital system
02/03/1987CA1217548A1 Trigger switch circuit for solenoid-actuated electric hand tool
02/03/1987CA1217542A1 Capacitive touch switch arrangement
02/03/1987CA1217529A1 Trigger circuit for solid state switch
01/1987
01/31/1987CN86100148A Electric impact device
01/29/1987WO1987000717A1 A telephone line switch
01/29/1987WO1987000581A1 Fuel injection solenoid driver circuit
01/29/1987DE3527130A1 Switching amplifier with a field effect transistor
01/29/1987DE3526836A1 Method and device for reducing the losses during operation of a pulse-controlled invertor
01/28/1987EP0209805A2 Semiconductor device having bipolar transistor and insulated gate field effect transistor
01/27/1987US4639824 Touch sensor for wire stripper
01/27/1987US4639823 Control circuit for switching transistors
01/27/1987US4639822 Arrangement for rapid switching of an electromagnetic load
01/27/1987US4639711 Signal transmitter
01/27/1987US4639689 Inductive loop detector
01/27/1987US4639667 Contactless controllers sensing displacement along two orthogonal directions by the overlap of a magnet and saturable cores
01/27/1987US4639619 Electronic sampler switch
01/27/1987US4639616 Circuit for controlling the base of a power transistor used in high tension switching
01/27/1987US4639614 Solid state RF switch with self-latching capability
01/27/1987US4639613 Broad band coupling switch arrangement with gated power supply
01/27/1987CA1217244A1 Insulator circuit with an optoelectronic coupler
01/24/1987CN86103248A Switch power supply circuit without interference of high frequency ringing
01/24/1987CN86102566A Multifunctional control circuit with overcurrent protection
01/22/1987DE3528104C1 Protective circuit for an electronic component
01/22/1987DE3525398A1 Transistor circuit for analog signals
01/21/1987EP0208970A1 MOFSET having a thermal protection
01/21/1987EP0208911A1 Electronic semiconductor switch
01/21/1987EP0208690A1 Arrangement for keyboards
01/20/1987US4638262 Proximity switch with improved response time and antimagnetic field circuitry
01/20/1987US4638240 Base drive circuit for high-power switching transistor
01/20/1987US4638189 Fast and gate with programmable output polarity
01/20/1987US4638185 Analog signal measuring apparatus
01/20/1987US4638182 High-level CMOS driver circuit
01/20/1987US4638181 Signal source selector
01/20/1987US4638167 Insulator circuit with an optoelectronic coupler
01/15/1987WO1987000367A1 Electronic circuit element with field-effect transistor operation, applications of this circuit element, and substitution circuit for such an element
01/15/1987DE3524522A1 Energy recovery circuit for antiparallel-connected electronic branch pairs