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:
Jul. 26, 2011
Filed:
Apr. 22, 2008
Yoichi Hayashi, Kanagawa, JP;
Tetsuya Fukumoto, Kanagawa, JP;
Yoichi Hayashi, Kanagawa, JP;
Tetsuya Fukumoto, Kanagawa, JP;
Renesas Electronics Corporation, Kawasaki-shi, Kanagawa, JP;
Abstract
An inverter apparatus is for correcting deviations among current detectors of a three-phase motor. The inverter apparatus includes bidirectional switching elements that have on and off states in the cases in which there are 1 and 0 mean on- and off-states. The states are alternately repeated by controlling the switches, and measurement for correcting the deviations among the current detectors are obtained in the state Currents have the same amplitude flow on a U phase and a V phase. In the state of normal use, the inverter apparatus is operated by correcting detected current values based on the measurement data.