The improved control method can make the two power switches turn on and off all under soft switching conditions and further increase the switch operating frequency and power density.

通过改进控制方式，可以使这两个功率开关的导通和关断都工作在软开关条件下，从而可以进一步提高开关频率，达到增加功率密度的目的。

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Theoretical analysis shows that the CUK circuit has inherently the features of power factor correction and soft turn off switching.

理论分析得出了CUK电路具有固有的功率因数校正和软关断开关特性。

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The solid state switch device uses power MOSFET as soft switch, so, the spark doesn't appear when the circuit turn on or turn off.

固态开关部件采用电力MOSFET做软开关，使得电路通断时，不会出现打火花的现象。

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