The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2018
Filed:
Jul. 31, 2014
Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;
Yuusuke Kouno, Tachikawa Tokyo, JP;
Masayuki Nogi, Hachioji Tokyo, JP;
Nobumitsu Tada, Hachioji Tokyo, JP;
Yuuki Tsukinari, Tokorozawa Saitama, JP;
Yosuke Nakazawa, Kunitachi Tokyo, JP;
Tomoyuki Makino, Iruma Saitama, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
Abstract
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.