DC power source device

A DC power source device is provided with: a rectifier circuit (5) that rectifies an AC voltage from an AC power source (1); a switching unit (4) that switches on/off the AC voltage from the AC power source (1) via an inductor (2); a smoothing capacitor (6) provided to an output side of the rectifie...

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Bibliographische Detailangaben
Hauptverfasser:	KYOGOKU AKIHIRO, DOYAMA YOSHIAKI, YOSHIDA IZUMI, KAWASAKI TOMOHIRO, DAI XINHUI, JI TIANQUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	A DC power source device is provided with: a rectifier circuit (5) that rectifies an AC voltage from an AC power source (1); a switching unit (4) that switches on/off the AC voltage from the AC power source (1) via an inductor (2); a smoothing capacitor (6) provided to an output side of the rectifier circuit (5); a first current detection unit (3) that detects an input current from the AC power source (1); and a second current detection unit (7) that detects current flowing in the direction that charges the smoothing capacitor (6) when the switching unit (4) is off. A control unit (8) detects an imbalanced state of the input current using difference information of the absolute values of the current values detected by the first current detection unit (3) and the second current detection unit (7) when the switching unit (4) is off.