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1. (WO2010119661) DC POWER-SUPPLY DEVICE AND APPLICATION SYSTEM THEREOF

Pub. No.:    WO/2010/119661    International Application No.:    PCT/JP2010/002647
Publication Date: Fri Oct 22 01:59:59 CEST 2010 International Filing Date: Tue Apr 13 01:59:59 CEST 2010
IPC: H02M 7/12
H02P 29/00
Applicants: PANASONIC CORPORATION
パナソニック株式会社
DOYAMA, Yoshiaki
土山吉朗
KYOGOKU, Akihiro
京極章弘
KAWASAKI, Tomohiro
川崎智広
Inventors: DOYAMA, Yoshiaki
土山吉朗
KYOGOKU, Akihiro
京極章弘
KAWASAKI, Tomohiro
川崎智広
Title: DC POWER-SUPPLY DEVICE AND APPLICATION SYSTEM THEREOF
Abstract:
Provided is a DC power-supply device that removes DC components from an AC power supply, and application systems utilizing the DC power-supply device. The DC power-supply device is a device that converts AC voltage to DC voltage, and outputs the DC voltage, and which has; switching devices (302, 312) that short-circuits the AC power supply (1) through a reactor (2); an electric-current detecting unit that detects electric-currents flowing in from the AC power supply, and outputs the electric-current as electric-current information; and a control unit (8) that conducts an ON-OFF driving of the switching devices so as to make the waveform of the electric-current, indicated by electric-current information detected by the electric-current detecting unit, become roughly a sine-wave shape. The control unit (8) will extract the frequency components of the AC power supply, included in the DC voltage to be outputted, and compensate for the ON-OFF ratio of the ON-OFF driving of the switching devices, according to the extracted frequency components of the AC power supply.