前言带有电感负载的功率晶体管在运用过程中最严重的问题之一是烧通。其结果造成在收集极和发射极之间短路。当晶体管从通导状态突然变成截止的时候,烧通现象往往出现。文中第一部份,对晶体管的特性曲线进行了分析并叙述了晶体管设计的考虑,提出了损坏机构的理论。第二部分介绍了电路的形式,讨论了晶体管的要求和保护方法。 Preface One of the most serious problems in the use of power transistors with inductive loads is firing. The result is a short circuit between the collector and the emitter. When the transistor suddenly turned off from the state when the pass, burn-through phenomenon often appear. In the first part of this paper, the characteristics of transistors are analyzed and the consideration of transistor design is presented. The theory of damage mechanism is proposed. The second part introduces the form of the circuit, discussing transistor requirements and protection methods.