| 摘要 |
PURPOSE:To realize redundant operation by operation by other power units when one power unit is not operated even when the power unit has a current balance function by installing first voltage comparison sections and second voltage comparison sections controlling current balance to each power unit. CONSTITUTION:The voltage comparison sections 2, 4 of two systems are mounted to each power unit PWR1, PWR2, and a voltage control section 1 is controlled by both outputs. Output voltage from the first voltage comparison sections 2 is controlled so as to be made higher than that from the second voltage comparison sections 4. When one of the power units PWR1, PWR2 is not worked, the control voltage of the first voltage comparison section 2 of the power unit, which is still operated, is brought to approximately zero, the voltage control section 1 is controlled by the control voltage of the second voltage comparison section 4, and redundant operation is realized. |
