Title:
POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/178969
Kind Code:
A1
Abstract:
In this uninterruptible power supply device, when a switch (2) including serially connected 1st to Nth IGBT units (U1 to UN) is switched ON, the first to Nth IGBT units are switched ON, and when the switch (2) is switched OFF, the (n+1)th to Nth IGBT units are switched OFF after the 1st to nth IGBT units have been switched OFF. Therefore, compared to when the 1st to Nth IGBT units are switched OFF all at once, it is possible to reduce surge voltage that occurs between terminals of the switch (2).
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Inventors:
ZHANG XIAOCHEN (JP)
NAKANO TOSHIHIDE (JP)
NAKANO TOSHIHIDE (JP)
Application Number:
PCT/JP2019/008534
Publication Date:
September 10, 2020
Filing Date:
March 05, 2019
Export Citation:
Assignee:
TOSHIBA MITSUBISHI ELEC IND (JP)
International Classes:
H02M1/00; H02J9/06; H03K17/16
Foreign References:
| JP2017060317A | 2017-03-23 | |||
| JPS63194543U | 1988-12-14 | |||
| JPH06104712A | 1994-04-15 | |||
| JP2000092817A | 2000-03-31 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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