电感电流断续工作的反激式变换器一次侧开关可工作于硬开关或准谐振(或谷值开关或零电压开关)模式。

The flyback converter running in discontinuous conduction mode can be operated in hard switching or quasi resonant (or valley switching, or ZVS) mode regarding the primary side switch.

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除了工作在固定的开关频率模式外，由于更小的开通损耗和更好的EMI性能，准谐振工作模式在反激式变换器中得到较广泛的应用。

Besides switching at a fixed frequency for Flyback converters, quasi-resonant mode is widely used due to its lower switch-on losses and better EMI performance.

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