Inductor winding capacitance cancellation using mutual capacitance concept for noise reduction application
Inductor winding capacitance cancellation using mutual capacitance concept for noise reduction application
复制标题
使用互电容概念消除电感器绕组电容，以实现降噪应用
DOI：
10.1109/temc.2006.873867
复制
发表时间：
2006
影响因子：
2.1
通讯作者：
J. D. van Wyk
中科院分区：
文献类型：
--
作者：
Shuo Wang;F. Lee;J. D. van Wyk
本文首先讨论了电容器间互电容的性质。研究发现，互电容的影响可以用两个正电容或两个负电容跨接来表示。这两个等效电容可以用来抵消电感的寄生电容。由于互电容可以用两个小电容来模拟，因此所提出的方法可以很容易地在实际元件中实现。然后构建原型，并使用网络分析仪验证取消。在实际电源电路中的进一步EMI测量证明，电感器的滤波性能有显着的改善。
In this paper, the properties of mutual capacitance between two capacitors are first discussed. It is found that the effects of mutual capacitance can be represented by two positive or negative capacitors across the two capacitors. These two equivalent capacitors can be used to cancel the parasitic capacitance of inductors. Because the mutual capacitance can be emulated using two small capacitors, the proposed method can easily be implemented in practical components. The prototypes are then built and the cancellation is verified using a network analyzer. Further EMI measurements in a practical power circuit prove that there is a significant improvement in the inductor's filtering performance.