| 一种双变压器串联谐振软开关推挽电路 |
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| 引用本文： | 张辉,邓嘉,马皓.一种双变压器串联谐振软开关推挽电路[J].电力电子技术,2008,42(6):28-30. |
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| 作者姓名： | 张辉 邓嘉 马皓 |
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| 作者单位： | 浙江大学,浙江,杭州,310027;浙江大学,浙江,杭州,310027;浙江大学,浙江,杭州,310027 |
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| 摘 要： | 针对输出电压与输入电压之比较高的推挽变换器,提出一种双变压器串联谐振软开关推挽电路,以提高其效率。两个推挽变换器的变压器次级串联,并且实现串联谐振软开关。给出了其电路构成及工作原理,推导分析了该电路的工作过程。在此基础上,对该电路与单变压器串联谐振软开关推挽电路作了比较研究。最后研制了12V输入、360V输出、200W功率的DC/DC变换器。通过实验证明,该电路具有较高的效率。
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| 关 键 词： | 变压器 串联 谐振/推挽电路 软开关 |
| 文章编号： | 1000-100X(2008)06-0028-02 |
| 修稿时间： | 2007年12月13 |
A Double-transformer Series Resonant Soft-switching Push-pull Circuit |
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| ZHANG Hui,DENG Jia,MA Hao.A Double-transformer Series Resonant Soft-switching Push-pull Circuit[J].Power Electronics,2008,42(6):28-30. |
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| Authors: | ZHANG Hui DENG Jia MA Hao |
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| Abstract: | In order to raise the efficiency of push-pull converters with high ratio between the output voltage and the input voltage,a double-transformer series resonant soft-switching push-pull circuit is proposed.The series secondary sides of the two transformers can achieve series resonant soft-switching.The construction and principle are presented and the operating pro-cess of the circuit ie analyzed.Based on these,the comparison research of the soft-switching push-pull circuit with two transfor-mers and one transformer is carried on.The experimental results on two 200 W DC/DC converters verify the improvement. |
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| Keywords: | transformer series resonant /push-pull circuit soft-switching |
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