X-ray generator and slip ring for a CT system
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United States of America Patent
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Dec 13, 2005
Grant Date -
Dec 30, 2004
app pub date -
Jun 30, 2003
filing date -
Jun 30, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention is directed to an apparatus for supplying power to a rotatable x-ray tube for generation of an x-ray beam for acquisition of CT data. The apparatus includes a slip ring to transfer power from a stationary inverter to a rotatable HV tank. The HV tank conditions the transferred power and creates a voltage potential across the x-ray tube for x-ray generation. The inverter has a single or pair of series resonant circuits connected either directly to the slip ring or indirectly through a transformer to limit frequency content and reduce common-mode component of the voltage and current waveforms carried by the slip ring as well as reduce power losses.
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