| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply capable of reducing the state where power cannot be supplied to a power supplied part because of temperature characteristics of circuit elements or influences of individual differences.SOLUTION: In the case where a predetermined condition is satisfied after the lapse of a first preset time even if an inter-terminal voltage of a capacitor 15 does not become equal to or higher than a first voltage threshold until the first preset time elapses after a precharge relay 11 is turned on, in a power supply 3, an ECU 20 compares the inter-terminal voltage with the first voltage threshold until a second preset time further elapses. When the inter-terminal voltage becomes equal to or higher than the first voltage threshold, a main relay 12 is turned on and next, the precharge relay 11 is turned off. The predetermined condition indicates that, after the lapse of the first preset time, the inter-terminal voltage of the capacitor 15 is equal to or higher than a second voltage threshold which is smaller than the first voltage threshold.SELECTED DRAWING: Figure 1 |
