| 线圈固有品质因数与LC回路空载品质因数的关系 |
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| 引用本文： | 陈晓华,李子竞.线圈固有品质因数与LC回路空载品质因数的关系[J].电力学报,2007,22(2):187-189,192. |
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| 作者姓名： | 陈晓华 李子竞 |
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| 作者单位： | 西安交通大学,电子与信息工程学院,陕西,西安,710049 |
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| 摘 要： | 根据品质因数的定义,得出了线圈内阻不能忽略时,LC回路的空载品质因数QP与线圈固有品质因数Q0的关系:QP=Q20-1(1+1/Q0),当Q0 1时,有QP=Q0。同时指出,用传统的串并联阻抗等效的方法计算出的QP的值是不准确的。从而为在低Q值下的计算提供了1个更为准确的结果,进一步明晰了品质因数的概念。
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| 关 键 词： | 线圈 品质因数 LC谐振回路 阻抗等效 |
| 文章编号： | 1005-6548（2007）02-0187-03 |
| 修稿时间： | 2007-02-032007-03-10 |
The Relation between the Unloaded Q Factor of LC Resonant Circuit and the Intrinsic Q Factor of Inductor Coil |
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| CHEN Xiao-hua,LI Zi-jing.The Relation between the Unloaded Q Factor of LC Resonant Circuit and the Intrinsic Q Factor of Inductor Coil[J].Journal of Electric Power,2007,22(2):187-189,192. |
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| Authors: | CHEN Xiao-hua LI Zi-jing |
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| Abstract: | Based on the definition of Q factor,when the loss of inductor should be considered,the tie between the unloaded quality factor QP of LC resonant circuit and the intrinsic quality factor Q0 of inductor coil is:QP=Q20-1(1 1/Q0),QP=Q0,while Q01.Meanwhile,it has been indicated that QP calculated is inaccurate by using traditional equivalent impedance theorem.So it provides a more accurate outcome on low Q factor calculation,further clarifying the concept of Q factor. |
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| Keywords: | inductor coil Q factor LC resonant circuit equivalent impedance |
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