| 摘要 |
PURPOSE:To improve efficiency and reliability at the time of a parallel operation. CONSTITUTION:An output current Io of a power supply is detected by a resistor 14. Corresponding to the output current Io, a comparator 15 turns on/off an FET11. When the power supply is normal, the FET11 is turned off, and the output current Io is supplied to a load 2. On the other hand, when the power supply is abnormal, the FET11 is turned off, and a reverse current is prevented from flowing in. Thus, when the power supply is normal, no voltage drop occurs at an output voltage line. |
