| 摘要 |
PROBLEM TO BE SOLVED: To provide a power converter and a phase advance rush preventing method that can detect phase advancement of output current with respect to an output voltage with high precision.SOLUTION: A power converter 100 includes a current resonance type DC-DC converter including insulated gate type transistors Q1 to Q8, a resonance circuit 33, a transformer T1, and a control circuit 30. The control circuit 30 controls the insulated gate type transistors Q1 to Q8. When the phase difference between a gate drive signal for driving the insulated gate type transistors Q1 to Q8 and a gate voltage of the insulated gate type transistors Q1 to Q8 is larger than a predetermined value, the control circuit 30 determines that the output current advances in phase with respect to the output voltage.SELECTED DRAWING: Figure 1 |
