Title:
POWER CONVERSION DEVICE AND POWER CONVERSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2007/074710
Kind Code:
A1
Abstract:
It is possible to provide a power conversion device and a power conversion system
capable of reducing the number of switching elements in 3-phase/2-phase conversion
so as to suppress cost increase and lowering of conversion efficiency and prevent
generation of a higher harmonic. In order to achieve this object, the power conversion
device (1) includes input terminals (121 to 123), first output terminals (131,
132), second output terminals (141, 142), and an insulation transformer (11).
The insulation transformer includes a primary coil (L1) and a secondary coil
(L2) having identical inductance. A first end of the primary coil has polarity
equal to a second end of the secondary coil. A first end of the first output terminal
is connected to the input terminal and the first end of the primary coil. The second
end of the first output terminal is connected to the input terminal and the first
end of the secondary coil. The first end of the second output terminal is connected
to the second end of the primary coil and the second end of the secondary coil. The
second end of the second output terminal is connected to the input terminal.
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Inventors:
MECHI ABDAL (JP)
Application Number:
PCT/JP2006/325494
Publication Date:
July 05, 2007
Filing Date:
December 21, 2006
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
MECHI ABDAL (JP)
MECHI ABDAL (JP)
International Classes:
H02M7/06; H01F30/02; H02M5/14; H02M7/12
Foreign References:
| JPH07107744A | 1995-04-21 | |||
| JPH1066333A | 1998-03-06 | |||
| JPH02206363A | 1990-08-16 | |||
| JPH11127580A | 1999-05-11 | |||
| JP2005080484A | 2005-03-24 |
Attorney, Agent or Firm:
YOSHIDA, Shigeaki et al. (Sumitomo-seimei OBP Plaza Bldg. 4-70, Shiromi 1-chome, Chuo-ku, Osaka-sh, Osaka 01, JP)
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