Title:
DIRECT CURRENT POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/132835
Kind Code:
A1
Abstract:
A direct current power supply device for converting alternating current power to direct current power and outputting the direct current power comprises: shunt resistance (1005) connecting the minus output terminal of a diode bridge (1003) for rectifying the alternating current voltage to a semiconductor switch; and a current detecting unit (1011) for detecting the current flowing to the shunt resistance (1005). A plus offset value is provided to the current detecting unit (1011) to raise the detected current value above the current flowing to the shunt resistance (1005), thereby reducing power harmonics and improving the power factor.
Inventors:
DAI XINHUI
KYOGOKU AKIHIRO
DOYAMA YOSHIAKI
YOSHIDA IZUMI
KAWASAKI TOMOHIRO
KYOGOKU AKIHIRO
DOYAMA YOSHIAKI
YOSHIDA IZUMI
KAWASAKI TOMOHIRO
Application Number:
PCT/JP2013/001363
Publication Date:
September 12, 2013
Filing Date:
March 05, 2013
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
H02M7/06
Domestic Patent References:
| WO2012127842A1 | 2012-09-27 |
Foreign References:
| JP2003079050A | 2003-03-14 | |||
| JPH0787744A | 1995-03-31 |
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
Mutsumi Sameshima (JP)
Mutsumi Sameshima (JP)
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Claims:
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