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:
Nov. 24, 2015
Filed:
Sep. 06, 2012
Masao Saito, Tokyo, JP;
Takamasa Nakamura, Atsugi, JP;
Kouji Yamamoto, Chigasaki, JP;
Junichi Itoh, Nagaoka, JP;
Yoshiya Ohnuma, Nagaoka, JP;
Masao Saito, Tokyo, JP;
Takamasa Nakamura, Atsugi, JP;
Kouji Yamamoto, Chigasaki, JP;
Junichi Itoh, Nagaoka, JP;
Yoshiya Ohnuma, Nagaoka, JP;
NISSAN MOTOR CO., LTD., Yokohama-shi, JP;
NAGAOKA UNIVERSITY OF TECHNOLOGY, Nagaoka-shi, JP;
Abstract
An electric power conversion device comprises a conversion circuit having bi-directionally switchable plural pairs of switching elements connected to respective phases and converting an inputted AC power into an AC electric power. A first switching time is calculated using detected voltages detected by voltage sensors and an output command value. A second switching time is calculated using a carrier and the calculated first switching time. The second switching time is such that, in one period of the alternating current electric power outputted from the conversion circuit, the second switching time included in a first half period of the one period is equal to the second switching time included in a second half period of the one period.