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. 10, 2017
Filed:
Oct. 15, 2010
Kazunori Hatakeyama, Tokyo, JP;
Takuya Shimomugi, Tokyo, JP;
Shinya Matsushita, Tokyo, JP;
Naoki Wakuta, Tokyo, JP;
Shinsaku Kusube, Tokyo, JP;
Tsutomu Makino, Aichi, JP;
Kazunori Hatakeyama, Tokyo, JP;
Takuya Shimomugi, Tokyo, JP;
Shinya Matsushita, Tokyo, JP;
Naoki Wakuta, Tokyo, JP;
Shinsaku Kusube, Tokyo, JP;
Tsutomu Makino, Aichi, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A selection unit switches between a phase θp and a phase θn different from the phase θp substantially by 180 degrees, and outputs one of them in synchronization with a carrier signal. A voltage-command generation unit generates and outputs three-phase voltage command values Vu*, Vv* and Vw* based on the phase outputted by the selection unit. A PWM-signal generation unit generates three-phase voltage command values Vu*', Vv*′ and Vw*′ by correcting the three-phase voltage command values Vu*, Vv* and Vw* outputted by the voltage-command generation unit according to a predetermined method, and generates six drive signals corresponding to switching elements of the inverter based on the three-phase voltage command values Vu*′, Vv*′ and Vw*′ and the carrier signal. The PWM-signal generation unit outputs the generated drive signals to the corresponding switching elements of the three-phase inverter, to cause the inverter to generate a high-frequency AC voltage.