Title:
ELECTRIC POWER CONVERSION DEVICE AND SURGE VOLTAGE REDUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2011/121765
Kind Code:
A1
Abstract:
An electric power conversion device which can convert a direct current electric power supplied by a direct current power source (2) into an alternate current electric power, and which comprises: six switching elements each composed of a voltage-driven transistor (6-i) (wherein i = 1, 2, …, 6) equipped with a wide band gap semiconductor and a diode (4-i); and drive circuits (5-i) that can control a voltage to be used for driving the transistor (6-i) based on a predetermined voltage profile when the switching elements are turned off, wherein the predetermined voltage profile is so determined as to drive the transistor (6-i) in a non-linear region.
Inventors:
NAKAMURA KAZUYA (JP)
TERADA KEI (JP)
TAKAHASHI KAZUTAKA (JP)
JIMBO SHIGEO (JP)
TERADA KEI (JP)
TAKAHASHI KAZUTAKA (JP)
JIMBO SHIGEO (JP)
Application Number:
PCT/JP2010/055880
Publication Date:
October 06, 2011
Filing Date:
March 31, 2010
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
NAKAMURA KAZUYA (JP)
TERADA KEI (JP)
TAKAHASHI KAZUTAKA (JP)
JIMBO SHIGEO (JP)
NAKAMURA KAZUYA (JP)
TERADA KEI (JP)
TAKAHASHI KAZUTAKA (JP)
JIMBO SHIGEO (JP)
International Classes:
H02M7/48
Foreign References:
| JP2004336845A | 2004-11-25 | |||
| JPH0479758A | 1992-03-13 | |||
| JP2009021395A | 2009-01-29 | |||
| JP2000092817A | 2000-03-31 | |||
| JP2002095238A | 2002-03-29 | |||
| JP2005006381A | 2005-01-06 | |||
| JP2001169413A | 2001-06-22 |
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
Download PDF:
Claims:
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