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:
Aug. 26, 2008
Filed:
Feb. 24, 2006
Akira Miyazaki, Kunitachi, JP;
Takashi Hashimoto, Niiza, JP;
Akira Miyazaki, Kunitachi, JP;
Takashi Hashimoto, Niiza, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An apparatus for electric power conversion in an electric rolling stock, comprising an inverter which receives a DC power fed from a DC power source at DC terminals, converts the received DC power into an AC power, and supplies the AC power to an AC motor, a first capacitor which is connected to the DC terminals of the inverter by low inductance connection and reduces a surge voltage generated in the inverter, and a second capacitor which is connected to the DC terminals of the inverter through a fuse, wherein a total sum of capacities of the first and the second capacitors is equal to or larger than a system demand capacitance.