| 采用原边辅助隔离的直流-直流变频器 |
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| 引用本文： | 周令琛. 采用原边辅助隔离的直流-直流变频器[J]. 山东大学学报(工学版), 2005, 35(5): 48-52 |
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| 作者姓名： | 周令琛 |
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| 作者单位： | 上海第二工业大学,电子电气工程学院,上海,201209 |
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| 摘 要： | 提出了一种采用原边辅助型变压器隔离的零电压和零电流开关(ZVZCS)直流-直流变频器.此变频器结构简单,仅使用1个辅助变压器和2个两极管来实现超前桥臂零电流开关(ZCS);辅助变压器的额定容量较小;变频器具有良好的负载电流控制能力;因电路的不对称性而产生的磁饱和现象可以大大改善,使得这种直流-直流变频器具有良好的特色.详细分析了此变频器的工作原理,并通过实验原型线路的测试验证了该变频器的性能.
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| 关 键 词： | 直流-直流变频器 变压器隔离 零电压零电流开关 |
| 文章编号： | 1672-3961(2005)05-0048-05 |
| 修稿时间： | 2004-11-02 |
A DC-DC converter with primary-assisted isolation |
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| ZHOU Ling-chen. A DC-DC converter with primary-assisted isolation[J]. Journal of Shandong University of Technology, 2005, 35(5): 48-52 |
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| Authors: | ZHOU Ling-chen |
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| Abstract: | A new type of primary-side-assisted ZVZCS DC-DC converter with transformer isolation is presented.The converter has a simple structure with only one auxiliary transformer and two diodes that provide ZCS for the leading leg.The power rating of the auxiliary transformer is lower.The converter is of a nice control capability for load current.The phenomenon of magnetic saturation due to asymmetricity of circuits can be greatly improved.The principle of the proposed converter is analyzed in detailed.The performance of the converter is verified on a experiment prototype. |
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| Keywords: | DC-DC converter transformer isolation ZCZVS |
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