Analysis of circuit characteristics of parallel resonant converter

作者：Zhang, Zhi-Guo^*; Xie, Yun-Xiang; Yuan, Zhao-Mei

来源：Journal of South China University of Technology(Natural Science Edition), 2013, 41(4): 33-38.

DOI：10.3969/j.issn.1000-565X.2013.04.006

• Application requirements
• Capacitive output filter
• Component parameters
• Operating modes
• Operational modes
• Parallel resonance
• Parallel resonant
• Simulated results

In order to fully reveal the circuit characteristics of the parallel resonant converter with capacitive output filter, the principle of the two operational modes of the converter is analyzed and the corresponding mathematical models are constructed. Then, the circuit characteristics of the converter in the two operating modes are discussed and a linear variation of the input current is revealed when the equivalent output voltage is less than the input one. Finally, some expressions are deduced to design circuit component parameters, and a design method is proposed to obtain component parameters meeting the application requirements of the parallel resonant converter. Simulated results indicate that the above analysis and the proposed design method are both correct.

• 出版日期2013-4
• 单位华南理工大学