指出确定晶体管单管放大电路组态时存在的问题并进行了讨论，给出确定的一般方法及单管放大电路的通用电路。
It is pointed out that there are some questions determining configuration of single transistor amplifier, the general method and common circuit are given.
使用单端反激变换器电路，用PWM信号控制开关管MOSFET。
Single flyback converter circuit, as well as the PWM signal, is used to control the MOSFET.
单管IGBT驱动电路的功能比较简单，只具有软关断和过流保护功能。
IGBT single tube driving circuit's function is relatively simple, only a soft shutdown and over-current protection.
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