| 反激变换器中RCD箝位电路参数设计 |
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| 引用本文： | 王昭昭,梅建伟,罗涛.反激变换器中RCD箝位电路参数设计[J].湖北汽车工业学院学报,2020,34(1):59-63. |
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| 作者姓名： | 王昭昭 梅建伟 罗涛 |
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| 作者单位： | 湖北汽车工业学院 电气与信息工程学院,湖北 十堰 442002,湖北汽车工业学院 电气与信息工程学院,湖北 十堰 442002,湖北汽车工业学院 电气与信息工程学院,湖北 十堰 442002 |
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| 基金项目： | 湖北省教育厅科学研究计划重点项目 |
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| 摘 要： | 针对反激变换器在实际应用中由于变压器漏感而引起的开关管电压应力过大问题,对反激变换器的工作原理进行分析,推导出箝位电容、箝位电阻和箝位二极管的计算公式,设计了RCD箝位电路。结合测试电路的实验波形,验证了理论分析的正确性,并探讨了开关管寄生电容大小对电路谐振过程的影响。
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| 关 键 词： | 反激变换器 RCD箝位电路 漏感 |
Parameter Design of RCD Clamping Circuit in Flyback Converter |
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| Wang Zhaozhao,Mei Jianwei,Luo Tao.Parameter Design of RCD Clamping Circuit in Flyback Converter[J].Journal of Hubei Automotive Industries Institute,2020,34(1):59-63. |
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| Authors: | Wang Zhaozhao Mei Jianwei Luo Tao |
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| Institution: | (School of Electrical&Information Engineering,Hubei University of Automotive Technology,Shiyan 442002,China) |
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| Abstract: | Aiming at the problem of excessive voltage stress on the switch due to the leakage inductance of the transformer in the actual application of the flyback converter,the working principle of the flyback converter was analyzed,the calculations of the clamping capacitance,the clamping resistance and the clamping diode were deduced,and the RCD clamp circuit was designed.Combined with the experimental waveforms of the test circuit,the correctness of the theoretical analysis is verified,and the influence of the parasitic capacitance of the switching tube on the circuit resonance process is discussed. |
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| Keywords: | flyback converter RCD clamp circuit leakage inductance |
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