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:
Dec. 19, 2017
Filed:
Feb. 26, 2013
Takuya Shimomugi, Tokyo, JP;
Michio Yamada, Tokyo, JP;
Yosuke Shinomoto, Tokyo, JP;
Mitsuo Kashima, Tokyo, JP;
Shigeo Umehara, Tokyo, JP;
Takuya Shimomugi, Tokyo, JP;
Michio Yamada, Tokyo, JP;
Yosuke Shinomoto, Tokyo, JP;
Mitsuo Kashima, Tokyo, JP;
Shigeo Umehara, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A power conversion device includes a switching control unit that controls respective switching elements constituting a plurality of chopper circuits, a rectified-voltage detection unit, a bus-bar voltage detection unit, and a bus-bar current detection unit. The switching control unit includes an on-duty calculation unit that calculates a reference on-duty of respective drive pulses with respect to the switching elements based on a bus-bar voltage and a bus-bar current, an on-duty correction unit that corrects the reference on-duty to output on-duties of the respective drive pulses based on the bus-bar current, so that change amounts of respective reactor currents become substantially the same, and a drive-pulse generation unit that generates the respective drive pulses, based on the respective on-duties.