反激变换器 RCD 箝位电路设计的教学探析

摘要

本文针对现有“电力电子技术”课程中普遍存在的对于反激变换器箝位电路的作用、影响及其分析设计不完整的问题，详细分析了反激变换器工作过程，指出了箝位电路的作用及其对反激变压器能量传输过程和传输效率的影响，据此给出了 RCD 箝位电路设计的原则和步骤。本文有助于学生更加全面深入地理解反激变换器的工作原理和特性，更好地掌握其箝位电路设计的方法，具有一定的教学指导意义。%The analysis on the clamping circuit of flyback converter is insufficient in Power Electronics course. The detailed operation principles of flyback converter are analyzed in this paper. The influence of the clamping circuit on the energy transformation efficiency is presented,based on which the principles and steps for the design of the RCD-clamping circuit for the flyback converter are provided. This paper can help to understand the operation prin-ciples and characteristics of the flyback converter thoroughly,and to design the clamping circuit effectively,which has certain significance for the education of power electronics.