| 非正弦励磁下磁芯损耗的计算 |
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| 引用本文： | 旷建军,郑力新,卢小芬,方瑞明. 非正弦励磁下磁芯损耗的计算[J]. 磁性材料及器件, 2009, 40(1) |
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| 作者姓名： | 旷建军 郑力新 卢小芬 方瑞明 |
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| 作者单位： | 华侨大学,信息科学与工程学院,福建泉州,362021 |
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| 基金项目： | 国务院侨办自然科学基金 |
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| 摘 要： | 磁性元件的损耗在开关电源中占相当大的比例,因此磁芯损耗的计算在开关电源设计中相当重要. 文中首先介绍了在正弦励磁下,计算磁芯损耗的Steinmetz 经验公式,然后对修正的Steinmetz 经验公式进行了回顾.修正后的公式可以用来计算非正弦励磁下的磁芯损耗,同时所需参数和修正前的公式一样.最后介绍修正的Steinmetz 经验公式在开关电源领域中的应用.
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| 关 键 词： | 磁芯损耗 铁氧体 磁性元件 开关电源 |
Calculation of Core Losses Under Nonsinusoidal Excitation |
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| KUANG Jian-jun,ZHENG Li-xin,LU Xiao-fen,FANG Rui-ming. Calculation of Core Losses Under Nonsinusoidal Excitation[J]. Journal of Magnetic Materials and Devices, 2009, 40(1) |
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| Authors: | KUANG Jian-jun ZHENG Li-xin LU Xiao-fen FANG Rui-ming |
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| Affiliation: | KUANG Jian-jun,ZHENG Li-xin,LU Xiao-fen,FANG Rui-ming College of Information Science & Engineering,Huaqiao University,Quanzhou 362021,China |
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| Abstract: | The losses of magnetic components occupy a considerable proportion in switching power supply,so the calculation of core loss is very important.Firstly the empirical equation of Steinmetz for calculation of the core losses under sinusoidal excitation was introduced,and then modified Steinmetz Equation was reviewed.That approach allows the calculation of core losses under non-sinusoidal excitation while using the available set of parameters of the empirical equation of Steinmetz.Finally application of the mod... |
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| Keywords: | core losses ferrite magnetic components switching power supply |
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