中南民族大学学报：自然科学版2012，Vol.31Issue(1)：71-74,4.
反激变换器次级谐振反射的研究
The Research of Resonant in Secondary Coils of Flyback Converter
摘要
Abstract
This paper describes the source of the resonant in secondary coils of flyback converter,and its effects on switches.It also gives the principle of how to choose voltage-sharing capacitors for high voltage output rectifier diode in series.It was found that an LC resonance is formed by secondary leakage inductance and secondary capacitors.If the value of secondary leakage inductance and capacitances are not suitable,the energy of secondary resonant will be coupled to the primary of transformer,which will result in a negative current and voltage spike in the switch.Under the condition of voltage-sharing,the value of voltage-sharing capacitors should be as small as possible.关键词
反激变换器/谐振/均压电容Key words
flyback converter/resonance/voltage-sharing capacitor分类
动力与电气工程引用本文复制引用
孙奉娄,郝英杰..反激变换器次级谐振反射的研究[J].中南民族大学学报：自然科学版,2012,31(1):71-74,4.基金项目
武汉市重点科技攻关计划资助项目 （）
