| 摘要 |
PROBLEM TO BE SOLVED: To supply power to connected loads or a combined load totalizing a plurality of loads at a voltage value which makes the smallest power consumption of the loads.SOLUTION: A power supply system comprises a power conversion device which outputs, to one or more loads, voltage between a predetermined lower limit voltage value for operating the loads and a predetermined upper limit voltage value higher than the lower limit voltage value. While the power conversion device detects current between the loads and the power conversion device, the power conversion device gradually changes voltage output to the loads between the lower limit voltage value and the upper limit voltage value, determines supply voltage which makes the smallest power consumption of the loads, and outputs the determined supply voltage to the loads. |
