| 低压大电流DC/DC变换器的研究 |
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| 引用本文： | 聂相举. 低压大电流DC/DC变换器的研究[J]. 黑龙江工程学院学报, 2014, 28(4): 43-46 |
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| 作者姓名： | 聂相举 |
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| 作者单位： | 黑龙江工程学院电气与信息工程学院,黑龙江哈尔滨,150050 |
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| 摘 要： | 在低压大电流DC/DC变换器的各种拓扑结构中,倍流整流结构有着良好的性能.在倍流整流结构中,由于滤波电感电流的相互抵消,而大大减小了输出电流纹波.基于同步整流电路的工作原理,利用闭环负反馈控制技术,采用损耗低的半桥倍流整流拓扑结构以及纹波消除技术设计一种低压大电流半桥倍流整流的DC/DC变换器.通过其工作原理的分析并利用Pspice仿真,验证了文中拓扑结构的高效性.
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| 关 键 词： | 半桥倍流整流 低电压大电流 闭环负反馈控制 |
Research on low voltage and high current Dc-Dc converter with synchronous rectifier |
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| NIE Xiang-ju. Research on low voltage and high current Dc-Dc converter with synchronous rectifier[J]. Journal of Heilongjiang Institute of Technology, 2014, 28(4): 43-46 |
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| Authors: | NIE Xiang-ju |
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| Affiliation: | NIE Xiang-ju (College of Electrical and Information Engineering, Heilongjiang Institute of Technology, Harbin 150050,China) |
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| Abstract: | Among all low-voltage high-current DC/DC converter topologies, the current-doubler topology is optional. In the current-doubler topology, the ripple current of the output filter capacitor is reduced because the ripple current of both inductors partially cancel each other and the required value of the filter inductance is significantly decreased. Based on the principle of synchronous rectification, with closed loop negative feedback and the half bridge double low loss current rectifier topology and ripple cancellation technology, a low voltage and high current half bridge current doubler rectifier DC/DC converter is design. Through the analysis of its working principle and the use of Pspice simulation, the effectiveness of this topology is verified. |
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| Keywords: | half bridge current doubler rectifier low-voltage high-current closed loop negative feedback control |
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