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:
Mar. 20, 2018
Filed:
May. 23, 2014
Meidensha Corporation, Tokyo, JP;
Isamu Hasegawa, Numazu, JP;
Takashi Kodama, Numazu, JP;
Takeshi Kondo, Mishima, JP;
Shota Urushibata, Odawara, JP;
MEIDENSHA CORPORATION, Tokyo, JP;
Abstract
Basic circuit of U phase includes first to fourth semiconductor elements (SUto SU) connected between positive and negative ends of DC voltage source (DCC), fifth semiconductor element (SU) connected to a common connection point of the first and second semiconductor elements (SU, SU), and sixth semiconductor element (SU) connected to a common connection point of the third and fourth semiconductor elements (SU, SU). Flying capacitor (FC) is inserted between the fifth semiconductor element (SU) and the sixth semiconductor element (SU). Voltage selection circuits have the common connection points of the second and third semiconductor elements (SU, SU) of the respective basic circuits as input terminals, and includes semiconductor elements (SUto SU) between the input terminals and output terminals (U, V, W). Consequently, it is possible to output arbitrary voltage in all phases in multilevel power convertor, and to simplify control for outputting arbitrary voltage level in all phases.