X-ray generating apparatus and method of driving X-ray tube
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United States of America Patent
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Jul 8, 2014
Grant Date -
May 17, 2012
app pub date -
Nov 1, 2011
filing date -
Nov 17, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
An inverter circuit is shared by respective drive circuits that supply a predetermined voltage to a lens electrode and a grid electrode, or to a lens electrode and a cathode electrode. A DC voltage obtained by full-wave rectifying a pulse train output from the inverter circuit is supplied to the lens electrode, a DC voltage obtained by half-wave rectifying a pulse train output from the inverter circuit is supplied to the grid electrode or cathode electrode. At times of a first operation and a last operation of the inverter circuit during a period of generating X-rays, operations of the inverter circuit are controlled such that a trans circuit outputs a negative polarity voltage to the full-wave rectifying circuit and the half-wave rectifying circuit, respectively.
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