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. 20, 2013
Filed:
Jul. 21, 2009
Yushi Koyama, Fuchu, JP;
Junichi Tsuda, Fuchu, JP;
Hiroshi Mochikawa, Hachioji, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
The present invention includes: an inverterconfigured to perform pulse wide modulation on an output from a DC power source; a first capacitor pairprovided at an input side of the inverter and including two capacitors serially connected to form a neutral point; a second capacitor pairprovided at an output side of the inverter and including two capacitors serially connected to form a neutral point; a bypass path g for a leakage current formed by connecting the neutral point of the first capacitor pair and the neutral point of the second capacitor pair to each other; at least one common mode choke coilprovided between the first capacitor pair and the second capacitor pair and configured to suppress a common mode current generated in the inverter; and an output filterconfigured to convert a voltage, which is outputted from the inverter and subjected to the pulse wide modulation, into a voltage in a sine wave form.