| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a power supply device that prevents a state where a voltage cannot be supplied to a supply target.SOLUTION: A power supply device 1 includes a main path having a first switching regulator 11 for adjusting a voltage supplied from a battery 10, and a sub path having a first series regulator 21 for adjusting the voltage supplied from the battery 10 as is the case with the adjusted value of the voltage by the first switching regulator 11. A micro computer 30, when a detected voltage of the main path is different from a voltage of the main path to be normally detected, switches voltage supply from the battery 10 to the micro computer 30 from the main path to the sub path.</p> |
