| 摘要 |
PROBLEM TO BE SOLVED: To simplify a connecting means and prevent a short-circuiting fault when connecting a DC power unit to a load equipment. SOLUTION: This system supplies the DC output of a DC power unit 1 to a load equipment consisting of a storage battery 8 and a load 9. The DC power unit 1 is constituted of a polarity switching circuit 3 which consists of a plurality of switches S1-S4 for switching the output polarity of a power converting section 2 and a polarity detecting circuit 4 which detects the output polarity of the DC power unit 1. The switches S1-S4 of the polarity switching circuit 3 are operated on polarity detection signals of the polarity detecting circuit 4. |
