超前和滞后的功率因数校正，2~51次谐波治理功能
具有较高的增益和较低的噪声
可以灵活调节滤波器的截止频率和品质因数等参数
适用于大多数滤波技术
Leading and lagging power factor correction, 2~5l harmonics control function
High gain and low noise
Can flexibly adjust the filter cut-off frequency and quality factor and other parameters
Suitable for most filtering technologies
