Power conversion device
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United States of America Patent
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Sep 27, 2022
Grant Date -
Oct 28, 2021
app pub date -
Oct 1, 2019
filing date -
Oct 22, 2018
priority date (Note) -
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Abstract
In order to reduce noise current leaking out from a frame to which semiconductor devices constituting a three-level power conversion circuit are attached to the outside of a power conversion device, the frame to which the semiconductor devices constituting the three-level power conversion circuit with which the power conversion device is equipped are attached is configured to be electrically connected to a neutral point of the three-level power conversion circuit. The noise current leaking out from the frame is thereby drawn back to the neutral point of the three-level power conversion circuit to suppress the flowing out of the noise current to the outside of the power conversion device and reduce the noise current.
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