| 两通道VRM耦合电感的模型分析和参数设计 |
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| 引用本文： | 卢增艺,王凯,陈为.两通道VRM耦合电感的模型分析和参数设计[J].电源学报,2009,7(2):94-101. |
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| 作者姓名： | 卢增艺 王凯 陈为 |
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| 作者单位： | 福州大学电气工程与自动化学院, 福州，350108;福州大学电气工程与自动化学院, 福州，350108;福州大学电气工程与自动化学院, 福州，350108 |
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| 基金项目： | 福建省自然科学基金资助项目(2006J0159) |
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| 摘 要： | 为了适应电压调整模块(VRM)未来的发展趋势，满足功率日益增加的负载点电源(POL： point-of-load)的设计要求，同时为倍流整流输出电感的磁集成设计等提供参考，本文将以两通道耦合电感为例，详细讨论其在两通道交错并联开关变换器中应用的参数设计和对电气特性的影响；建立电路和磁路的对应关系，提出评价耦合电感的性能因子；分析通道电流纹波相互抵消的特点，结合电流谐波分量，说明耦合电感线圈损耗减少的机理；建立完整的交直流磁通分布，为耦合电感工作在直流不平衡的情况下提供理论依据，并对理论分析进行实验验证
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| 关 键 词： | 耦合电感 性能因子 损耗机理 磁通分布 直流不平衡 |
| 收稿时间： | 3/6/2009 12:00:00 AM |
Modeling and Design of Coupled Inductor in 2-phase Voltage Regulators |
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| LU Zeng-yi,Wang Kai and CHEN Wei.Modeling and Design of Coupled Inductor in 2-phase Voltage Regulators[J].Journal of power supply,2009,7(2):94-101. |
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| Authors: | LU Zeng-yi Wang Kai and CHEN Wei |
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| Affiliation: | College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China;College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China;College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China |
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| Abstract: | To meet the requirement of VRM and the design request of increasing power of POL in the future, meanwhile, and also to provide the reference for magnetic integration of output chokes in current doubler rectifier, the parameter design and electrical characteristics in interleaved multiphase converter have been discussed in depth based on 2-phase coupled inductor. The relationship between electric circuit and magnetic circuit has been built and the performance factor has also proposed for evaluation. Moreover, winding loss reduction mechanism has been explained according to current ripple cancellation in frequency and time domain. General flux distribution has illustrated which provides theory for the analysis in DC unbalance operation of coupled inductor. Finally, the experiments have been carried out for verification |
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| Keywords: | Coupled inductor Performance factor Loss mechanism Flux distribution DC unbalance |
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