| 摘要 |
PROBLEM TO BE SOLVED: To provide a DC power supply synthesizing device with a backflow prevention device having no power loss which can prevent backflow without installing a backflow prevention circuit on the DC converter side, and extinguish or extremely reduce power loss generated by installation of a backflow prevention circuit (for example, a backflow prevention diode).SOLUTION: A device for synthesizing power from a plurality of DC power supplies and outputting the synthesized power to a DC load device comprises DC converters which are installed in the plurality of DC power supplies respectively and have a backflow prevention function. The DC converter having the backflow prevention function comprises a backflow prevention circuit including a switch control circuit for turning ON/OFF of power outflow transmitted to the DC load device side, where ON/OFF control of a switch circuit is performed on the basis of a comparison value between a generation voltage value generated in the DC converter and an output voltage value output to the DC load device side. |
