Using this method, the minimum switching losses can be reached, and the maximum switching current can be reduced effectively. This has been shown in the simulation results.

这种方法开关损耗最小，并可有效降低开关器件的最大开关电流，仿真结果证明了其可行性。

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The method of instantaneous value comparison for source current control of unity power factor rectifier possesses advantages of simplicity as well as valid restriction for maximum switching frequency.

在单位功率因数整流器中，利用瞬时值比较法来控制电源电流，不但控制简单，还可有效限制器件的最高开关频率。

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In the midpoint voltage of leading leg transition, its soft switching is easily realized because of the primary current of transformer keeping the maximum.

领先桥臂中点电压变换期间，变压器初级电流基本保持最大值，使得领先桥臂容易实现软开关；

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