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:
Nov. 02, 2021
Filed:
Aug. 22, 2017
Toshiba Mitsubishi-electric Industrial Systems Corporation, Chuo-ku, JP;
Toshihide Nakano, Chuo-ku, JP;
Kazuhiro Hinagata, Chiyoda-ku, JP;
Abstract
A power supply system includes: a semiconductor switch () that is turned on at the time of normal supply from a commercial AC power supply (); a first current detector (CT) including a transformer () and configured to detect an AC input current (I); a second current detector (CT) including a Hall effect sensor () and configured to detect an AC output current (I); and a failure detector () that determines that one of a pair of thyristors () included in the semiconductor switch () has misfired when the detection values from the first and second current detectors (CT, CT) are not equal at the time of normal supply from the commercial AC power supply ().