该文介绍了单端正激式脉冲变压器的工作原理和设计方法，指出了在设计时应注意的问题。

In this paper, a design method and the operating principles of pulse transformer in forward converter are presented, and some problems to be considered are pointed.

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介绍了一种新型无损箝位电路在单端正激电源中的应用，详细分析了工作原理，并给出了实验结果。

Application of a new lossless clamp circuit for single ended forward converter is introduced, the operation principle of this circuit is analyzed in detail, and the experiment result is also given.

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提出了一种新型的双重单端正激式弧焊逆变电源，采用IGBT为开关器件，引入了电流型脉宽调制控制器。

A new double single-ended forward arc welding power inverter with IGBT as power device and current PWM controller is introduced in this paper.

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