Electric power converter
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United States of America Patent
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Aug 22, 2023
Grant Date -
N/A
app pub date -
Oct 18, 2021
filing date -
Apr 16, 2019
priority date (Note) -
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Abstract
An electric power converter includes a plurality of switch pairs respectively corresponding to a plurality of phases and each consisting of an upper-arm switch and a lower-arm switch. Each of the lower-arm switches of the switch pairs has a first terminal, a second terminal and a gate. The electric power converter further includes: a voltage generation circuit having its positive electrode side connected to the second terminal of only one of the lower-arm switches of the switch pairs; a negative-electrode-side electrical path connected to a negative electrode side of the voltage generation circuit; and at least one capacitor having a first end connected to the second terminal of one of the remainder of the lower-arm switches of the switch pairs, which is not connected with the voltage generation circuit, and a second end connected to the negative-electrode-side electrical path.
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