| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply system capable of attaining automatic switching to a power supply from a storage battery without performing control for switching a power supply even when power failure occurs.SOLUTION: The power supply system 1 includes an AC-DC converter 2 that converts AC power to output DC power; a storage battery 32 that is charged by DC power output from the AC-DC converter 2,a secondary cell unit 3 that outputs either one of DC power output from the AC-DC converter 2 or DC power output from the secondary cell unit 3, and a DC power supply unit 4 that converts DC power output from the secondary cell unit 3 to supply DC power for turning on a lighting device 10. |
