| 摘要 |
PROBLEM TO BE SOLVED: To enable stop of all the outputs when one of outputs becomes an over-current or low-voltage. SOLUTION: When abnormal conditions (over-current, low-voltage) are generated in the output of a converter I2 to which a coil 21 to detect an output failure is provided, an AC voltage induced on a coil 23 to detect such abnormal conditions becomes low, and an output voltage of a rectifier circuit 22 is also lowered. As a result, a power supply change-over means 23 does not supply the power supply voltage to a controller of each inverter, thereby stopping all the outputs of a multiple-output power supply. |
