开关稳压电源性能的改进

Improving the capabilities of switching power supplies

详细分析了开关稳压电源的工作过程 ,并针对功率晶体管的二次击穿 ,提出了RC吸收网络 ,并通过优化基极驱动减少晶体管的开关损耗 ,从而提高开关稳压电源的性能。

This article analyzed the working procedure of switching power supplies in detail. In order to avoid the second breakdown of power transistors,the authors apply a RC absorption net, and bring forward a way of reducing the transistors' switching losses through optimizing base drive and then improve the capabilities of switching power supplies.