So that, based on the traditional PWM control mode, the turn-offof the two power components in the full bridge PWM converter aredelayed, consequently, zero-current-switching (ZCS) is realized.

• 因此，本文在传统PWM控制方式的基础上，使其中两只功率管的关断适当延时，从而使这两只功率管实现零电流开关（ZCS）。