| 主权项 |
1. A power supply circuit comprising:
a switching circuit; and a switching control section configured to calculate a current control value based on a comparison result between a smoothed voltage of an output of the switching circuit and a target value, and to control a dead time of the switching circuit based on the current control value, wherein the switching control section includes a dead time compensation circuit configured to control the dead time of the switching circuit so that the current control value becomes closer to a minimum value, wherein the dead time compensation circuit includes a dead time search part configured to search for the dead time, a current control value observation part configured to observe the current control value when the dead time is searched for, and a current control value determination part configured to determine whether the current control value is minimum, based on a comparison result between the current control value observed at a previous time and the current control value observed at a present time. |
