Kabushiki Kaisha Toshiba

Toshiba Infrastructure Systems & Solutions Corporation

Yuuki Tsukinari

Yosuke Nakazawa

Satoru Abe

Nobuto Fujiwara

Hiroshi Ishii

Satoshi Kurosawa

Yuusuke Kouno

Nobumitsu Tada

Masayuki Nogi

Tomoyuki Makino

Taihei Koyama

Akio Sekimoto

Haruhiko Fujito

A vehicle power conversion device includes a two-level converter, a three-level converter and one cooling device. The two-level converter includes a capacitor, first switching devices and second switching devices. The three-level converter includes two capacitors, third switching devices, fourth switching devices and a bidirectional switch. The first and second switching devices are embedded in first power modules, and the third and fourth switching devices are embedded in second power modules. The second power modules have dielectric strength voltages at least equal to a voltage applicable to any one of the two capacitors connected in series included in the three-level converter, and the first power modules have dielectric strength voltages at least equal to a sum of a voltage applicable to any one of the two capacitors connected in series included in the three-level converter and a voltage applicable to the capacitor included in the two-level converter.

Vehicle power conversion device

Growing community of inventors

Tokorozawa Saitama, Japan

Yuuki Tsukinari