If we add an Amplifier across passive high pass filter, we can easily create Active high pass filter. We learned in the previous tutorial about passive high pass filter that its work without any outer interruption or active response. Same as like passive low pass filter, passive high pass filter works with passive components, Resistor and Capacitor. Let’s explore what is an Active High Pass Filter. Previously we described about Passive High Pass Filter and Active Low Pass Filter, now it is time for Active High pass filter.
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