Patent application number | Description | Published |
20080198634 | Resonant Dc/Dc Converter With Zero Current Switching - A resonant DC/DC converter for supplying an output power comprises a switching device ( | 08-21-2008 |
20080259020 | Scanning Backlight For a Matrix Display - A scanning backlight unit (BU) for a matrix display comprises a plurality of light sources (L | 10-23-2008 |
20080275575 | Determining States of a Physical System by an Observer - Determining estimations of states of a physical system ( | 11-06-2008 |
20080303450 | Method and Circuit for Driving a Gas Discharge Lamp - The invention relates to a method for driving a gas discharge lamp and relates to a lamp driver circuit for driving a gas discharge lamp in accordance with said method. The method comprises supplying a current to the gas discharge lamp, reversing the direction of the current supplied to the gas discharge lamp and, substantially simultaneously, generating a relatively high voltage. The generated high voltage serves to prevent a series of re-ignitions of the gas discharge lamp that may lead to visible flickering of the gas discharge lamp or to extinction of the gas discharge lamp. | 12-11-2008 |
20080309249 | Gas Discharge Lamp Ignition - Ignition of a gas discharge lamp | 12-18-2008 |
20090066311 | PRE-CONDITIONER WITH LOW VOLTAGE COMPONENTS - A pre-conditioner circuit comprising first and second pre-conditioner modules ( | 03-12-2009 |
20100052561 | METHOD FOR DRIVING AN INVERTER OF A GAS DISCHARGE SUPPLY CIRCUIT - A method of controlling an inverter ( | 03-04-2010 |
20100135052 | VOLTAGE MULTIPLIER WITH IMPROVED POWER EFFICIENCY AND APPARATUS PROVIDED WITH SUCH VOLTAGE MULTIPLIER - A voltage multiplier comprising a chain of multiplier stages, each multiplier stage (STGj) comprising first and second inputs (IPIj, IP | 06-03-2010 |
20100188007 | SUPPLYING A SIGNAL TO A LIGHT SOURCE - Supply circuits for supplying voltage and current signals to light sources ( | 07-29-2010 |
20110002445 | DC/AC POWER INVERTER CONTROL UNIT OF A RESONANT POWER CONVERTER CIRCUIT, IN PARTICULAR A DC/DC CONVERTER FOR USE IN A HIGH-VOLTAGE GENERATOR CIRCUITRY OF A MODERN COMPUTED TOMOGRAPHY DEVICE OR X-RAY RADIOGRAPHIC SYSTEM - The present invention refers to a DC/AC power inverter control unit of a resonant-type power converter circuit (400), in particular a DC/DC converter, for supplying an output power for use in, for example, a high-voltage generator circuitry of an X-ray radio-graphic imaging system, 3D rotational angiography device or X-ray computed tomography device of the fan-or cone-beam type. More particularly, the present invention is directed to a resonant-type power converter circuit out which comprises an interphase transformer (406) connected in series to at least one series resonant tank circuit (403 | 01-06-2011 |
20110007528 | METHOD FOR CONTROLLING A SWITCHING DEVICE OF A RESONANT POWER CONVERTER, ESPECIALLY IN ORDER TO PROVIDE A REQUIRED POWER, ESPECIALLY FOR AN X-RAY GENERATOR - This invention relates to a method for controlling a switching device ( | 01-13-2011 |
20110075796 | ROTARY POWER TRANSFORMER FOR USE IN A HIGH-VOLTAGE GENERATOR CIRCUITRY FOR INDUCTIVELY TRANSMITTING TWO OR MORE INDEPENDENTLY CONTROLLABLE SUPPLY VOLTAGES TO THE POWER SUPPLY TERMINALS OF A LOAD - The present invention refers to a high-voltage power supply circuit for inductively transmitting electrical energy from a stationary part to a load on a rotary part which requires a non-symmetrical voltage transfer, for example, an X-ray tube of an X-ray computed tomography device. The circuit may be realized as a resonant-type power converter circuit with a single rotary power transformer ( | 03-31-2011 |
20110075797 | DEVICE FOR A COMPUTER TOMOGRAPHY GANTRY FOR TRANSFERING CONTACTLESSLY ELECTRICAL ENERGY - The invention provides a device for a computer tomography gantry ( | 03-31-2011 |
20110127973 | SWITCHED MODE POWER CONVERTER - The invention provides a switched mode power converter adapted for zero-voltage transition operation, wherein the converter comprises a half-bridge, having a first power switch ( | 06-02-2011 |
20120032601 | SYSTEM FOR CONTROLLING A PLURALITY OF LIGHT SOURCES | 02-09-2012 |
20120069955 | CONTACTLESS POWER CHAIN - An imaging system ( | 03-22-2012 |
20120262966 | AC/DC CONVERTER CIRCUIT - The invention relates to an AC/DC converter circuit ( | 10-18-2012 |
20130119871 | METHOD AND SYSTEM FOR CONTROLLING THE LUMINOUS FLUX OF A LIGHTING ARRANGEMENT - The invention relates to a method for controlling the luminous flux of a lighting arrangement ( | 05-16-2013 |
20130144448 | CASCADED POWER-OVER-ETHERNET SYSTEM - A Power-over-Ethernet (PoE) device ( | 06-06-2013 |
20130151025 | MANAGEMENT OF POWER-OVER-ETHERNET INSTALLATION - The invention relates to a management unit ( | 06-13-2013 |
20130251108 | POWER SUPPLY UNIT FOR AN X-RAY TUBE - A power supply unit for an X-ray radiation source ( | 09-26-2013 |
20140049301 | SEMICONDUCTOR SWITCH WITH RELIABLE BLACKOUT BEHAVIOR AND LOW CONTROL POWER - The present invention relates to a bidirectional semiconductor switch (M1, M2) with extremely low control power consumption and a bootstrap circuit which allows reliable start of operation of the switch and the hosting device after unlimited duration of mains interruptions. Intelligent control options are provided by operating from a small energy storage and no extra means are required to recover from a depleted energy storage condition. The absence of audible noise and mechanical wear also enables more frequent recharging cycles and allows smaller and thus cheaper energy storage components. | 02-20-2014 |