| 二次型CCM Buck变换器的电流应力及效率分析 |
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| 引用本文： | 冯金芝,李增辉. 二次型CCM Buck变换器的电流应力及效率分析[J]. 电子科技, 2016, 29(8): 51 |
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| 作者姓名： | 冯金芝 李增辉 |
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| 作者单位： | (上海理工大学 机械工程学院，上海 200093) |
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| 摘 要： | 二次型DC-DC变换器拓宽了变换器输入到输出电压的传输比，提高了高传输比场合下的传输效率，与传统变压器相比因为储能元件的增加电路功耗也会增大。为具体分析其工作过程中的功耗，文中考虑了储能元件的内阻等因素，通过计算各元器件电流应力推导出功耗，并研究了变换器工作效率及各个工作参数之间的关系，并通过仿真验证了理论分析的正确性。
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| 关 键 词： | 二次型Buck变换器 稳态特性 电流应力 效率分析 |
Current Stress and Efficiency Analysis of the Quadratic Buck Converter in CCM |
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| FENG Jinzhi,LI Zenghui. Current Stress and Efficiency Analysis of the Quadratic Buck Converter in CCM[J]. Electronic Science and Technology, 2016, 29(8): 51 |
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| Authors: | FENG Jinzhi LI Zenghui |
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| Affiliation: | (School of Mechanical Engineering, University of Shanghai for Science and Technology,Shanghai 200093, China) |
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| Abstract: | The quadratic converters realize the cascade of two converters to achieve wide voltage conversion ratios and higher efficiency, compared with the conventional converter, the power losses increase accompany with the amounts of the components. In this paper current stress and conduction loss for every component in the circuit will be derived considering internal resistances to analyze the detailed converter power losses. The work efficiency of the converter and relationship among circuit parameters will also be studied. Simulation results are presented to verify the theoretical analysis. |
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| Keywords: | quadratic Buck converter steady-state characteristic current stress efficiency analysis |
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