| 摘要 |
A DC/DC converter (100) is configured by connecting a first switching circuit (5) between a DC power source (1) and a first winding (3a) of a transformer (3), and connecting a second switching circuit (8) between a battery (2) and a second winding (3b). A control circuit (20) is equipped with a first circuit (31) for performing a feedback control so as to decrease the difference between a command value and a detection value of a charging current, and a second circuit (35) for correcting the control input or output of the first circuit (31) on the basis of the command and detection values. In addition, when charging the battery, the control circuit (20) controls the phase shift amount (θ1) of a first diagonal element, and the phase shift amount (θ2) of a second diagonal element inside a second switching circuit (8), relative to the drive phase of a first reference element inside a first switching circuit (5). As a result, it is possible to respond quickly to changes in the power transmission direction and to steep fluctuations in load. |
