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:
Mar. 03, 2020
Filed:
Jul. 14, 2016
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Yasushige Mukunoki, Chiyoda-ku, JP;
Yasushi Nakayama, Chiyoda-ku, JP;
Hiroyasu Iwabuki, Chiyoda-ku, JP;
Yuki Ishii, Chiyoda-ku, JP;
Keisuke Iwasawa, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Abstract
A diode rectifier rectifies an AC voltage output from a neutral-grounding three-phase AC power supply to a DC voltage. A smoothing capacitor smoothes the DC voltage rectified by the diode rectifier. An inverter converts the DC voltage smoothed by the smoothing capacitor into a desired AC voltage. A bidirectional switch and a Y capacitor are connected in series between one end of the smoothing capacitor and the ground. A detector detects a voltage across both ends of the smoothing capacitor. A controller drives the bidirectional switch in response to an output of the detector.