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. 04, 2020
Filed:
Apr. 21, 2017
Toshiba Mitsubishi-electric Industrial Systems Corporation, Chuo-ku, JP;
Abstract
A power converter is electrically connected with an AC power supply via a switch, and is configured with a plurality of unit converters () connected in series. A drive circuit () drives a plurality of switching elements (to) of a main circuit (). An interface circuit () outputs a detection value of a voltage sensor () to a control device (). If a bypass switch () is turned off when the power converter is activated, each of the plurality of unit converters () charges a capacitor () using power supplied from the AC power supply. When the power converter is activated, a power supply () supplies a power supply voltage to the voltage sensor () and the interface circuit (), prior to the drive circuit (). The control device () turns off the switch when the detection value of the voltage sensor () of at least one of the plurality of unit converters () is more than or equal to a predetermined value.