X-ray high voltage apparatus and power factor corrector
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United States of America Patent
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Sep 6, 2022
Grant Date -
Oct 15, 2020
app pub date -
Apr 8, 2020
filing date -
Apr 10, 2019
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Abstract
According to one embodiment, the X-ray high voltage apparatus includes a plurality of converters and control circuitry. The plurality of converters converts AC power to DC power. Each converter includes choke coils and three-phase rectifier circuits. Each choke coil has a main winding and is provided on each phase line of three-phase AC power supply lines. Each three-phase rectifier circuit includes a switching device. The control circuitry is configured to interleave the plurality of converters. Each choke coil of the each converter has the single main winding and two correction windings of a first correction winding and a second correction winding. Each of currents flowing through the respective two correction windings is a sum of currents flowing through the plurality of converters performing interleaving operation, and flows so as to cancel a magnetic flux generated in the main winding.
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