Patents
Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158)
02/1999
02/24/1999CN1209243A Telephone equipment protection circuit
02/24/1999CN1209242A Telephone switch hook interface circuit
02/24/1999CN1209228A Voltage controlled crystal oscillator and loop filter
02/24/1999CN1209209A Fault detection and modification circuit
02/24/1999CN1208857A Semiconductor device
02/23/1999US5875188 High speed switch
02/23/1999US5874853 Semiconductor integrated circuit system
02/23/1999US5874851 Semiconductor integrated circuit having controllable threshold level
02/23/1999US5874847 Charge pump circuit for controlling a pair of drive transistors
02/23/1999US5874844 Schmitt trigger circuit with an adjustable trigger voltage
02/23/1999US5874843 Power-on reset circuit without an RC Network
02/23/1999US5874836 High reliability I/O stacked fets
02/18/1999DE19751651C1 Circuit for switching an inductive load
02/18/1999DE19735543A1 Load switching circuit according to input signal in car systems
02/18/1999DE19735541A1 Circuit for turning off MOSFET end stage e.g. Power-Mos
02/18/1999DE19735476A1 Switching system for automobile electrical device with optical display
02/18/1999DE19733006A1 Multiple limit switches
02/17/1999EP0897219A2 Snubber circuit arrangement against power dissipation of power semiconductor switches in DC-choppers
02/17/1999EP0896757A1 Device including a thermally protected switching transistor
02/17/1999EP0896678A1 Displacement-current sensor and method for determining three-dimensional position, orientation and mass distribution
02/17/1999EP0846277B1 Functional control device for photoelectric barriers
02/17/1999CN1042183C Electric power converter
02/16/1999US5872706 Circuit arrangement for multiple use of a transformer core
02/16/1999US5872528 Multichannel coder of single-channel structure
02/16/1999US5872507 Process for non-contact distance measurement
02/16/1999US5872478 SCR firing circuit for high voltage control applications
02/16/1999US5872477 Multiplexer with CMOS break-before-make circuit
02/16/1999US5872476 Level converter circuit generating a plurality of positive/negative voltages
02/16/1999US5872474 Waveform shaping circuit
02/16/1999US5872369 Solid-state antenna switch and field-effect transistor
02/11/1999DE19740697C1 Power output stage control method for vehicle fuel injection or ignition
02/11/1999DE19728333A1 Power control method for electrical heater, e.g. throughflow heater
02/10/1999EP0896268A1 An integrated device for switching systems with filtered reference quantities
02/10/1999EP0895671A1 Static relay with condition detecting
02/10/1999EP0895670A1 Low current drain switch interface circuit
02/10/1999CN2307406Y AC and DC universal wide voltage proximity switch
02/10/1999CN2307405Y DC two-wire system proximity switch
02/10/1999CN2307404Y 多功能开关 Multifunction switch
02/10/1999CN1207599A Long service life approach switch with automatic overload protection function
02/10/1999CN1042067C Unit of semiconductor IC
02/10/1999CN1042062C Detection system with receptor and process for implementation of device to verify functioning of this detection system
02/09/1999US5870346 VLSI memory circuit
02/09/1999US5870345 For an integrated circuit device
02/09/1999US5870340 Multiplexer
02/09/1999US5870266 Bridge control circuit and method
02/09/1999US5870219 Ultra compact scanning system for a wide range of speeds, angles and field depth
02/09/1999US5870045 Digital to analog converter circuit
02/09/1999US5870034 Compact computing device having a compressible keyboard
02/09/1999US5870028 Input expansion for crosspoint switch module
02/09/1999US5869988 High speed write driver for inductive heads
02/09/1999US5869984 Output buffer circuit utilizing FETS for lowering output resistance of a circuit block
02/09/1999US5869842 Mux and demux circuits using photo gate transistor
02/09/1999US5869791 Method and apparatus for a touch sensing device having a thin film insulation layer about the periphery of each sensing element
02/09/1999US5867940 Powered sliding device for a vehicle sliding door
02/04/1999WO1999005791A1 Signal clamping circuit with level shifting and error detection for multiple inputs
02/04/1999DE19732910A1 Load control circuit
02/03/1999EP0895362A1 Electrical circuit for the detection of the state of a switching arrangement
02/03/1999EP0895357A1 PWM awitching poweroutput stage for controlling and regulating inductive loads
02/03/1999EP0895289A2 Digital circuit in MOS Technology
02/03/1999EP0894349A1 Method and apparatus for eliminating reflected energy due to stage mismatch in nonlinear magnetic compression module
02/03/1999EP0843913A4 Appliance ac power control apparatus
02/03/1999CN2306613Y Solid-state hold relay
02/03/1999CN1206963A Device for limiting switch thyristor holding current
02/03/1999CN1206962A Multiplexer
02/03/1999CN1206961A High-voltage quick switching circuit for current variable flow control
02/03/1999CN1206960A Method and device for controlling switch thyristor
02/03/1999CN1041984C Pulse width modulated dc-to-dc boost converter
02/02/1999US5867334 Magnetic recording device and method using a push-pull amplifier structure and shaping driver circuit
02/02/1999US5867235 Assembling construction of a display apparatus and assembling method therefor
02/02/1999US5867111 Touch control system
02/02/1999US5867047 Bandgap reference based power-on detect circuit including a suppression circuit
02/02/1999US5867042 Switch for minimizing transistor exposure to high voltage
02/02/1999US5867014 Current sense circuit having multiple pilot and reference transistors
02/02/1999US5866958 Power control device for redundant reset outputs in an ATM system and method of power control thereof
02/02/1999US5866957 Switching device
01/1999
01/28/1999WO1999004493A1 Electronic analog switch
01/28/1999DE19815249A1 Sensor activated switch for lights or other electrical devices
01/28/1999CA2296403A1 Electronic analog switch
01/27/1999EP0893884A2 Method and device for controlling a gate turn-off thyristor
01/27/1999EP0893883A2 Device for limiting the hold current of a gate turn-off thyristor
01/27/1999EP0893882A2 High frequency switch device, front end unit and transceiver
01/27/1999EP0893867A2 Resettable overcurrent protective circuit
01/27/1999EP0660982B1 Driving circuit for a gate turn-off thyristor
01/27/1999CN2305808Y Electronic time-delay switch
01/26/1999US5864247 Voltage detection circuit, power-on/off reset circuit, and semiconductor device
01/26/1999US5864245 Output circuit with overvoltage protection
01/26/1999US5864128 Method for scanning a bar code target
01/26/1999US5863194 Interrogation of multiple switch conditions
01/24/1999CA2243776A1 Apparatus for limiting the holding current of a gate turn-off thyristor
01/21/1999WO1999003219A1 Wake-up circuit for an electronic apparatus
01/21/1999WO1999003218A1 Data reception circuit for infrared signals
01/21/1999WO1999003206A1 Output stage with slewing control means
01/21/1999WO1999003205A1 Circuit arrangement, in particular for triggering an ignition end stage
01/21/1999WO1999003203A1 Timing circuit
01/21/1999WO1999002871A1 Proximity switch which can be inserted in a t-slot, or fixing element for the same
01/21/1999DE19816791A1 Schaltungsanordnung, insbesondere zum Ansteuern einer Zündendstufe Circuit arrangement, in particular for controlling an ignition
01/21/1999DE19742167C1 Drive circuit for power MOSFET
01/21/1999DE19737628C1 Smart-switch open-load diagnosis method e.g. for controlled power supply in motor vehicle
01/21/1999DE19726765A1 Circuit arrangement with power semiconductor components especially IGBT
01/21/1999DE19725835A1 Integrierte Vollbrückenschaltung mit vier Transistoren Integrated full-bridge circuit with four transistors