Concerning the transistor chopper developed by our university, the author introduces systematically the operation principle of the chopper, with description of chopping pulse generator and predrive circuit. 本文针对我校研制的晶体管斩波器,除了系统地介绍了斩波器工作原理外,还对斩波脉冲发生器、前置驱动电路进行了叙述。