Kabushiki Kaisha Yaskawa Denki

Shinsuke Kajiwara

Takashi Kuboyama

Sadao Ishii

Tetsumi Narita

A power conversion device includes a switching circuit and a switch driver. The switching circuit includes a plurality of switching elements including a first switching element and a second switching element that are electrically coupled in series. The switch driver includes a first, a second, and a third switching pattern controller. The first switching pattern controller executes a first switching pattern which is set such that a current in a reverse direction flows through the first switching element and the second switching element is off. The second switching pattern controller executes a second switching pattern which is set such that a direction of the current flowing through the first switching element is switched to a forward direction from the reverse direction. The third switching pattern controller executes a third switching pattern which is set such that the first switching element is off and the second switching element is on.

Growing community of inventors

Kitakyushu, Japan

Shinsuke Kajiwara