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:
Sep. 10, 2019
Filed:
Jun. 08, 2014
Kabushiki Kaisha Yaskawa Denki, Kitakyushu-shi, JP;
Yaskawa America, Inc., Waukegan, IL (US);
Taisuke Katayama, Gurnee, IL (US);
Eiji Yamamoto, Kitakyushu, JP;
Kenji Mitsuda, Kitakyushu, JP;
Hiroshi Takagi, Kitakyushu, JP;
Thomas Bryan Sasada, Gurnee, IL (US);
KABUSHIKI KAISHA YASKAWA DENKI, Kitakyushu-Shi, JP;
YASKAWA AMERICA, INC., Waukegan, IL (US);
Abstract
An inverter system includes an inverter apparatus and a smoothing capacitor charging-power apparatus. The inverter apparatus includes a transformer and an inverter cell. The transformer includes primary windings and secondary windings. Each of the inverter cells includes a converter circuit, a smoothing capacitor, and an inverter circuit. The converter circuit is configured to convert an intermediate alternating-current voltage to a direct-current voltage. The smoothing capacitor is configured to smooth the direct-current voltage. The inverter circuit is configured to at least partially generate a phase voltage of a variable alternating-current voltage from the direct-current voltage smoothed by the smoothing capacitor. Electric power is to be supplied from a second power supply different from a first power supply to the smoothing capacitor charging-power apparatus. The smoothing capacitor charging-power apparatus is electrically connected to the primary windings to supply initial charging power to the smoothing capacitor via the primary windings and the secondary windings.