| 摘要 |
<p>PROBLEM TO BE SOLVED: To parallel off a load safely by interrupting generation of arc with a compact and simple configuration, in a DC power supply device for supplying DC power of constant current generated by photovoltaic power generation, for example, to a load.SOLUTION: A DC power supply device 1 includes a DC power supply 10 for generating DC power of constant current, a converter 30 having a switching element 32 and supplying the DC power generated from the DC power supply 10, a switching section 60 performing connection and parallel-off of the DC power supply from the converter 30 to a load 80, and a control section 5 for controlling the switching element 32 and the switching section 60. The control section 5 controls to switch the switching section 60 from connection state to parallel-off state, after maintaining the on state of the switching element 32.</p> |
