中图分类号：TN86 文献标志码：A DOI: 10.16157/j.issn.0258-7998.234337
中文引用格式： 刘志斌，潘永雄，吴健鸿. 准谐振与有源钳位反激变换器的性能比较和分析[J]. 电子技术应用，2024，50(4)：115-120.
英文引用格式： Liu Zhibin，Pan Yongxiong，Wu Jianhong. Performance comparison and analysis of quasi resonant and active clamp flyback converters[J]. Application of Electronic Technique，2024，50(4)：115-120.

Performance comparison and analysis of quasi resonant and active clamp flyback converters

Abstract： High frequency, high efficiency, and high power density have become important design indicators for AC-DC converters. Traditional quasi resonant flyback converters, due to their reliance on passive resistive components to release leakage energy in the form of thermal energy, do not possess ZVS characteristics, which limits the further improvement of power density. However, active clamp flyback converters can compensate for the shortcomings of quasi resonant flyback converters. This article firstly outlines the working principles of the quasi resonant flyback converter and the active clamp flyback converter, and analyzes the main performance differences between the quasi resonant and active clamp flyback converters. Then, two 48 W quasi resonant flyback converter prototypes and active clamp flyback converter prototypes are designed and manufactured to obtain relevant experimental data as a basis for performance comparison and analysis.

Key words : quasi resonant；active clamping flyback；flyback converters