Patents
Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158)
09/2005
09/29/2005DE202005010570U1 Touch sensitive sensor, especially for control and switching purposes, has light source and light-sensitive sensor that detects contact with the walls of light guide between it and the light source as change in intensity
09/29/2005DE202005010379U1 Passenger presence recognizing device for vehicle, has capacitive sensor attached to door handle for detecting presence of passenger in door region of vehicle, including differential unit
09/29/2005DE10224537B4 Kapazitive Tastatureinrichtung und Verfahren zur Herstellung einer solchen kapazitiven Tastatureinrichtung Capacitive keyboard apparatus and method for producing such a capacitive keyboard means
09/29/2005DE102004005531A1 Electronic high frequency switch for attenuator has gate voltage whose magnitude can be switched between at least two values (-5, 5 and/or -8 volts) according to desired linearity or switching speed
09/28/2005EP1580889A1 Inductive proximity sensor
09/28/2005EP1580888A1 Drive circuit for voltage driven type semiconductor element
09/28/2005EP1580887A1 Motor speed control system for a fan and motor unit, in particular a heating and/or air-conditioning unit for a motor vehicle
09/28/2005EP1580881A2 High-frequency power amplifier and communication apparatus
09/28/2005EP1579337A2 Apparatus and method for bus signal termination compensation during detected quiet cycle
09/28/2005EP1579302A2 Contact member for manhole and the like
09/28/2005EP1579266A2 Thin planar switches and their applications
09/28/2005CN2730027Y Infrared remote switch
09/28/2005CN2729840Y Lamp switch controlled by infrared remote-controller of domestic electrical equipment
09/28/2005CN2728906Y Electric bicycle energy saving regulating and controlling switch device
09/28/2005CN1674453A Switch apparatus, switchable power amplification apparatus, and mobile communication terminal apparatus
09/28/2005CN1674443A Level-conversion circuit
09/28/2005CN1674440A Dynamic multi-input priority multiplexer and method for selecting signal
09/28/2005CN1674439A Hand-held equipment with contact type controller
09/28/2005CN1674438A Circuit for positive power source inputting load electrifying slow starting
09/28/2005CN1221078C Surge current preventing and time sequence controlling device for thermal connect-disceonnect electronic equipment
09/28/2005CN1220923C Computer mainboard and its audio processing circuit
09/27/2005US6949973 Signal amplifier
09/27/2005US6949965 Low voltage pull-down circuit
09/27/2005US6949963 Line driver with current source output and high immunity to RF signals
09/27/2005US6949961 Power switch structure with low RDSon and low current limit
09/27/2005US6949952 Programming circuit and method having extended duration programming capabilities
09/27/2005US6949951 Integrated circuit multiplexer including transistors of more than one oxide thickness
09/22/2005WO2005088815A1 Motor drive circuit
09/22/2005WO2005088316A1 Method and device for measuring speed in a contactless manner
09/22/2005WO2004061808A3 Lattice touch-sensing system
09/22/2005US20050210088 Calculating unit
09/22/2005US20050209828 Digital, self-calibrating proximity switch
09/22/2005US20050209768 Power electronics circuit with voltage regulator for electromechanical valve actuator of an internal combustion engine
09/22/2005US20050208909 High-frequency power amplifier and communication apparatus
09/22/2005US20050207504 Signal transmission circuit
09/22/2005US20050207456 Method and apparatus for reducing errors due to line asymmetry in devices utilizing coherent population trapping
09/22/2005US20050207338 Keyboard video mouse switch for multiple chaining and a method for switching electrical signals thereof
09/22/2005US20050207228 Semiconductor integrated circuit and magnetic storage device using the same
09/22/2005US20050207172 Electronic textile touch light controller
09/22/2005US20050206626 Apparatus and method for configuring a touch screen
09/22/2005US20050206571 High frequency switch circuit
09/22/2005US20050206438 Drive circuit for voltage driven type semiconductor element
09/22/2005US20050206437 Pre-regulator with reverse current blocking
09/22/2005US20050206435 Circuit and method for turn-on of an internal voltage rail
09/22/2005US20050206424 Current selective D flip-flop circuit
09/22/2005US20050206409 Enhanced cmos circuit to drive dc motors
09/22/2005US20050206386 Switching circuit and individual voltmeter apparatus
09/22/2005DE102005010517A1 Tactile sensor for low voltage switching apparatus e.g. for product or apparatus switch has switch and contact surface that is formed from electrically conducting plastic
09/22/2005DE102004002438A1 Safety switch for monitoring closing position of relatively movable parts, especially for automated system safety door, has directional sensor antenna magnetic characteristic for transformer coupling with actuator in 2 orthogonal directions
09/21/2005EP1578018A1 Low voltage driver
09/21/2005EP1578017A2 Electronic switch for high-frequency connections
09/21/2005EP1577720A2 Method and apparatus for reducing errors due to line asymmetry in devices utilizing coherent population trapping
09/21/2005EP1577545A1 Method and switching device for operating an ignition coil of an internal combustion vehicle
09/21/2005EP1576570A2 Lattice touch-sensing system
09/21/2005EP0808512B1 Method of driving a field effect transistor
09/21/2005CN2728103Y Time delay energy-saving switch
09/21/2005CN2728102Y Delayed start circuit for power supply
09/21/2005CN2728101Y Short circuit protection circuit based on P channel MOSFET
09/21/2005CN1671049A Drive circuit for voltage driven type semiconductor element
09/21/2005CN1671043A High-frequency power amplifier and communication apparatus
09/21/2005CN1670856A Accessories for acoustics player
09/21/2005CN1220324C Switch power circuit
09/21/2005CN1219993C Multi-optical-path photoelectric safety apparatus
09/20/2005US6947414 Device for emitting the response of a synchronous system to an asynchronous event
09/20/2005US6947272 Inrush current control method using a dual current limit power switch
09/20/2005US6947270 Building block for series connection in high power converter
09/20/2005US6946980 Input device
09/20/2005US6946904 USB with over-voltage and short-circuit protection
09/20/2005US6946892 Level transforming circuit
09/20/2005US6946891 Switching circuit device
09/20/2005US6946888 Percent-of-clock delay circuits with enhanced phase jitter immunity
09/20/2005US6946885 Ripple gate drive circuit for fast operation of series connected IGBTs
09/20/2005US6946869 Method and structure for short range leakage control in pipelined circuits
09/20/2005US6946867 Data output circuit and data output method
09/20/2005US6946853 Non-contact proximity sensor
09/20/2005US6946804 Display device
09/20/2005US6945828 Sensor system and connector used therefor
09/20/2005CA2267522C Method and apparatus for switching circuit system including a saturable core device with multiple advantages
09/15/2005WO2005086349A1 Electrical circuit arrangement for a power tool
09/15/2005WO2005086348A1 Electronic device for controlling actuators
09/15/2005WO2005086314A1 Electronic device and recharging connector arrangement
09/15/2005WO2005064278A3 Method for the production of a switching device, and subassembly for a switching device
09/15/2005WO2005011100A3 Speed control system for the motor of a fan and motor unit, in particular a heating and/or air-conditioning unit for a motor vehicle
09/15/2005WO2004114105A3 Improvements in touch technology
09/15/2005US20050202787 Keypad assembly
09/15/2005US20050201036 Method of operating a device for controlling electric actuators with optimum actuation current distribution
09/15/2005US20050201027 Semiconductor output circuit
09/15/2005US20050200583 Display driver
09/15/2005US20050200398 Semiconductor device
09/15/2005US20050200392 Output buffer with controlled slew rate for driving a range of capacitive loads
09/15/2005US20050200384 Mosgate driver integrated circuit with adaptive dead time
09/15/2005DE102005010129A1 Electrical circuit arrangement to control electric motors features heat generating power element to protect the electrical circuit from overheating
09/15/2005DE102005009027A1 Schaltkreissystem für eine elektronische Batteriesteuereinheit Circuit system for a battery electronic control unit
09/15/2005DE102005006867A1 Halbleiterschalter Semiconductor switches
09/15/2005DE102004039392B3 Detecting current in electrical device driven by field effect transistor using pulse width modulation involves deriving current from pulse width modulation, source-daring voltage, ambient temperature and supply voltage
09/15/2005DE102004019353B3 Control system using proximity sensor and evaluation unit for hearing aid enables control functions when user's hand is moved near ear with installed hearing aid
09/15/2005DE102004008636A1 Position switch having switch body and control element e.g. for security switch off electric heater, has switch body and guide which has movable range being in central position at its normal position and control element
09/14/2005EP1575169A2 Proximity switch with signal processing system
09/14/2005EP1575168A2 Semiconductor device
09/14/2005EP1575070A2 Input device for an installation device