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. 26, 2022
Filed:
Mar. 02, 2018
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Takuya Kajiyama, Chiyoda-ku, JP;
Takaharu Ishibashi, Chiyoda-ku, JP;
Takushi Jimichi, Chiyoda-ku, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A power conversion device includes a first bridge circuit, a second bridge circuit, and an inductance element connected between a first AC terminal of the first bridge circuit and a second AC terminal of the second bridge circuit. The controller calculates a passing current passing through the inductance element based on a difference between a first alternating current flowing between the first AC terminal and the inductance element and a second alternating current flowing between the second AC terminal and the inductance element, and detects a first DC component included in the passing current. The controller changes a duty in at least one of the first AC voltage and the second AC voltage to cancel the detected first DC component, the duty being a ratio of a positive potential period and a negative potential period.