檢視谐波滤波器的原始碼

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|<center>'''谐波滤波器'''<br><img
src="https://ts1.cn.mm.bing.net/th/id/R-C.19d9f19fa1063a0e3f945a1aa554f749?rik=WVNyqEYcC2j6TQ&riu=http%3a%2f%2fwww.srpower.net%2fimg%2ffc.jpg&ehk=WaHqjvZn5HbEqmW%2bs9LGRO8szjuOOk6fCfqiaYOHXLA%3d&risl=&pid=ImgRaw&r=0" width="280"></center><small>  圖片來自优酷</small> 
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用于滤除电力系统中某一次或多次[[谐波]]的装置；其结构大多数为电感、电容和电阻等元件组合而成，即[[无源滤波器]]，它也兼做[[无功功率]]补偿用；新兴的滤波技术还包括[[有源滤波器]]。