Design and implementation of a novel differential mode active EMI filter with a twin circuit
Design and implementation of a novel differential mode active EMI filter with a twin circuit
复制标题
一种新型双电路差模有源EMI滤波器的设计与实现
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
F. Luo
中科院分区：
文献类型：
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作者：
B. Narayanasamy;F. Luo
提出了一种用于差模噪声衰减的新型有源EMI滤波器。该滤波器由一个双电路组成，该双电路由模拟主电路中高功率元件的低电压/电流元件组成。双电路使用恒定阻抗来表示电源阻抗。可以将用于提高稳定性的补偿网络添加到低压电路，从而避免任何附加的高压部件。对整个电路进行了建模，并给出了设计实例。实验结果表明，22 dB的衰减约150 kHz，使用该滤波器。
A novel active EMI filter for differential mode noise attenuation is proposed. The filter consists of a twin circuit that is made up of low voltage/current components that mimic the high power components in the main circuit. The twin circuit uses a constant impedance to represent the mains impedance. Compensation networks to improve stability could be added to the low voltage circuitry thus avoiding any additional high voltage components. The modeling of the entire circuit is carried out and the design example is presented. The experimental results show 22 dB attenuation around 150 kHz using the proposed filter.