| 摘要 |
A resonant switching power supply device includes: a first switching element and a second switching element which are configured to convert and adjust power. A capacitance of a first/second gate-drain capacitor existing between a gate and a drain of the first/second switching element and a resistance of a first/second gate resistor of the first/second switching element are set such that, in a period during which a resonance current flows by switching the second/first switching element, a gate-source voltage of the first/second switching element is lower than an ON threshold voltage of the first/second switching element due to the resonance current divided into the first/second gate-drain capacitor. |
