Referring to high frequency switching power supply, the power losses mainly concentrate on the rectifier diodes in the secondary side and the MOSFET in the primary side during turn-on and turn-off.

• 对于高频切换式电源转换器来说，功?损耗大部分集中在二次侧二极体整?器以及一次侧功?晶体导通和截止之切换期间。