Uninterrupted double supplying power source unit

Application Number: 00107516
Application Date: 2000.05.12
Publication Number: 1274188
Publication Date: 2000.11.22
Priority Information: 1999/5/14 JP 133500/99
International: H02J7/00;H02J9/06;H02M3/28
Applicant(s) Name: Nippon Protctor Sales Co.
Inventor(s) Name: Sakai Setsuo
Patent Agency Code: 72002
Patent Agent: huang jianfeng
Abstract The present invention provides an uninterruptible duplexed power supply system, which is capable of achieving high efficiency and compact size, and moreover, is capable of solving for a power circuit failure in an energized state. This uninterruptible duplexed power supply system connects via a high-frequency transformer a power circuit; a secondary DC outputting circuit; and a DC power circuit, comprising a switching device for synchronizing with switching device of power circuit, and for operating this DC power circuit, and is constituted so that the power circuit is unitized, and this power circuit unit is detachable in a connected state, wherein same is connected electrically to the high-frequency transformer, and in a connection release state, and is constituted so as to provide means for buffering or preventing overcurrent reverse current resulting from induced voltage from the DC power circuit via the high-frequency transformer to the power circuit, and so that the power circuit unit is detachable in an energized state.