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 |
20080275575 | Determining States of a Physical System by an Observer - Determining estimations of states of a physical system ( | 11-06-2008 |
20090309573 | DETERMINING OUTPUT VOLTAGE OR CURRENT IN AN SMPS - An apparatus and method for determining an output voltage or output current in an SMPS circuit 10 are described. The SMPS circuit comprises a switching element | 12-17-2009 |
20100007540 | BINARY CONTROLLER AND POWER SUPPLY WITH A BINARY CONTROLLER - A controller is described, which is particularly suited for a power supply with switching elements (S | 01-14-2010 |
20100008558 | SPECTRALLY RESOLVING X-RAY IMAGING DEVICE - The invention relates to an X-ray imaging device ( | 01-14-2010 |
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 |
20110080991 | X-RAY DEVICE FOR CONTROLLING A DC-AC CONVERTER - The invention provides an X-ray device for controlling a DC-AC converter, wherein the DC-AC converter is adapted for supplying a resonant circuit and a transformer ( | 04-07-2011 |
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 |
20130285664 | STATE SPACE FEEDBACK CONTROLLER IN THE DIGITAL DOMAIN FOR AN MRI GRADIENT COIL POWER SUPPLY - The invention relates to a state space feedback controller operating in the digital domain for the regulation of the current supply to MRI gradient coils from a multiple-bridge PWM power amplifier. The Pl-controller comprises an integration part (for the integration of the difference between the demand current and the measured gradient coil current) and a subsequent P-controlled system which in turn comprises a delay compensator/stabilizer and a plant. The delay compensator/stabilizer comprises a multi-path feedback loop by means of which its digital output signal is fed back through delay blocks, on the one hand, and through filter units, on the other hand, whereby the filter units model the transfer functions of a gradient coil output filter for the gradient coil voltage and the output current of the amplifier inverter units, respectively. In the plant, a filter unit, which models the gradient coil transfer function, is connected in series to a delay chain for the delay of the measurement value of the gradient coil current. | 10-31-2013 |
20140354281 | GRADIENT AMPLIFIER WITH COMPENSATION FOR DEAD TIME AND FORWARD VOLTAGE - The present invention relates to a method for compensating non-linearities of a gradient amplifier ( | 12-04-2014 |