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:
Apr. 14, 2015
Filed:
Nov. 04, 2010
Matahiko Ikeda, Chiyoda-ku, JP;
Masaru Kobayashi, Chiyoda-ku, JP;
Hirotoshi Maekawa, Chiyoda-ku, JP;
Naoki Moritake, Chiyoda-ku, JP;
Takao Mitsui, Chiyoda-ku, JP;
Matahiko Ikeda, Chiyoda-ku, JP;
Masaru Kobayashi, Chiyoda-ku, JP;
Hirotoshi Maekawa, Chiyoda-ku, JP;
Naoki Moritake, Chiyoda-ku, JP;
Takao Mitsui, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
Disclosed is a DC-DC power conversion apparatus () including two or more switching units (SU, SU) each of which further includes two semiconductor switching elements (Sa, Sb), and wherein each of the semiconductor switching elements (S, S, S, S) of each of the switching units are all connected in series, and which also includes an energy transition capacitor (C) for conducting charging/discharging, and an inductor (L). The DC-DC power conversion apparatus () is also provided with a control unit that makes the semiconductor elements execute operations in four types of switching modes, according to the ratio (V/V) of the input/output voltages of the power conversion apparatus and the direction of the power transmission, and that also makes the elements carry out a current-discontinuing operation wherein the inductor current will become zero during switching operation, upon low load.