大功率晶体管卸载电路的设计

Design of Unload Circuits for Power Transistor

本文讨论了大功率晶体管在开关过程中的卸载问题,给出了RCD卸载电路及一种新颖的无损耗卸载电路,分析了卸载电路的工作过程。应用简化的数学模型,推导各元件的参数计算公式,并给出了实验结果。

This paper describes the unload circuits which are used in power transistor (SOA). RCD unload circuit and a novel unload circuit without energy losses are presented, their effects are discussed. By means of simplified mode the design equations are derived for the components. Also the experimental results are given.