Title:
THREE-LEVEL POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/002017
Kind Code:
A1
Abstract:
According to the present invention, a first leg (500) includes: a first switching circuit (SW1) disposed between a first node (a) to which a positive electrode of a DC power source (2) is connected and a second node (b); and a second switching circuit (SW2) disposed between the second node (b) and a third node (c). A first filter circuit (100) includes a first capacitor (3). A bridge circuit (200) includes a second leg (RG2) and a third leg (RG3) arranged in parallel between the first node (a) and the third node (c). A clamp circuit (300) includes a bidirectional switch (BD) disposed between a fourth node (d) that is the midpoint of the second leg (RG2) and a fifth node (e) that is the midpoint of the third leg (RG3). The second filter circuit (400) includes a first reactor (13) and a second reactor (14).
Inventors:
AMIMOTO TAKESHI (JP)
KAWAI YU (JP)
KAWAI YU (JP)
Application Number:
PCT/JP2019/026732
Publication Date:
January 07, 2021
Filing Date:
July 04, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02M7/483
Foreign References:
| JP2012205390A | 2012-10-22 | |||
| JP2009089541A | 2009-04-23 | |||
| JP2014110729A | 2014-06-12 | |||
| JP2015033217A | 2015-02-16 | |||
| US7046534B2 | 2006-05-16 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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