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. 06, 2016
Filed:
Apr. 29, 2015
Kabushiki Kaisha Yaskawa Denki, Kitakyushu-shi, JP;
Tetsumi Narita, Fukuoka, JP;
Masato Higuchi, Fukuoka, JP;
Yasuhiko Kawanami, Fukuoka, JP;
Hidenori Hara, Fukuoka, JP;
Takamitsu Katsuki, Fukuoka, JP;
KABUSHIKI KAISHA YASKAWA DENKI, Kitakyushu-Shi, JP;
Abstract
A controller of a power conversion apparatus according to an embodiment causes a chopper and an inverter to generate an alternating-current (AC) voltage including first and second parts of an AC voltage waveform and causes the inverter to output the AC voltage. The chopper generates the first part having an absolute value higher than a voltage of a DC power supply, and the inverter generates the second part having an absolute value lower than the voltage of the DC power supply. The controller is configured to alternately turn on the first and second switching elements in a period during which the controller controls the chopper to generate the first part of the AC voltage waveform.