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:
Jan. 23, 2024
Filed:
May. 07, 2019
Mitsubishi Electric Corporation, Tokyo, JP;
Takaharu Ishibashi, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A first bridge circuit executes power conversion between a first DC voltage and a first alternating current voltage of a primary-side winding of a transformer. A second bridge circuit executes the power conversion between a second DC voltage and a second AC voltage of a secondary winding of the transformer. A control circuit controls on and off of switching elements so that a zero voltage period is provided in only one of the first AC voltage and the second AC voltage. A length of the zero voltage period is determined so that charging and discharging of a snubber capacitor is completed during a dead time in which the on and off of a positive-side switching element and a negative-side switching element of each switching arm are switched in a bridge circuit on a side outputting an AC voltage in which the zero voltage period is not provided.