| 一种改进的ZVT-PWM-CUK电路 |
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| 引用本文： | 童正军,陈新刚,杨东升.一种改进的ZVT-PWM-CUK电路[J].船电技术,2008,28(6). |
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| 作者姓名： | 童正军 陈新刚 杨东升 |
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| 作者单位： | 海军装备研究院舰船论证研究所,北京,100161;海军驻上海沪东中华造船(集团)有限公司代表室,上海,200129 |
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| 摘 要： | 软开关技术能够有效改善功率开关管的工作环境,降低开关损耗,提高变换器的效率。传统ZVT-PWM变换器的辅助开关是硬关断,关断损耗很大。本文介绍了一种新型的ZVT-PWM-CUK改进电路,它通过在辅助支路串联电容和并联二极管,实现了辅助开关的零电流关断,从而使所有开关器件的软开关。文章对这种新型的ZVT-PWM-CUK改进电路的九种工作模式进行了详细的分析,并通过仿真实验证明了理论分析的正确性。
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| 关 键 词： | ZVT-PWM 软开关 CUK电路 直流变换器 |
An Improved ZVT-PWM-CUK Circuit |
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| Tong Zhengjun,Chen Xingang,Yang Dongsheng.An Improved ZVT-PWM-CUK Circuit[J].Marine Electric & Electronic Technology,2008,28(6). |
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| Authors: | Tong Zhengjun Chen Xingang Yang Dongsheng |
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| Abstract: | Soft switching technique could improve the circumstance of the power converter, reduce the losses and increase the efficiency of the converter.The auxiliary switch of the tradition ZVT-PWM converter is hard switched, so the losses are very large. A novel ZVT-PWM -CUK improved circuit is introduced in this paper,which achieve the zero current switching when the auxiliary switch turns off by installing a capacitance in series and two diodes in parallel in the auxiliary branch. The nine modes of the ZVT-PWM -CUK improved circuit are analyzed detailedly, and the correctness of the academic analysis is proved by a simulation testing. |
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| Keywords: | ZVT-PWM |
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