Power conversion device
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United States of America Patent
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Oct 17, 2017
Grant Date -
Jan 19, 2017
app pub date -
Jun 30, 2014
filing date -
Jun 30, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A power conversion device has an internal power supply switch and a bias power supply switch connected in parallel with the internal power supply switch, wherein, when an output voltage of an internal power supply circuit is greater than a predetermined value when a power supply is started up, the bias power supply switch opens a current path, and when the power supply is stopped, the step-up power supply circuit is stopped based on a stop signal output by the internal power supply circuit and the internal power supply switch closes the current path, and when the output voltage of the internal power supply circuit becomes lower than a predetermined value, the bias power supply switch closes the current path.
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