An instance could well be the above schematic with the popular-method choke and pair of capacitors linked to an op-amp. The transfer purpose on the amplifier can then be adjusted by introducing reactive elements for the responses loop, While Be careful for the stability of this sort of active EMI https://dallasnhxmq.bloggerbags.com/36401700/5-simple-statements-about-fn3258-130-35-explained