What is a filter? An active filter? Give one application for an active filter.
What is a filter? An active filter? Give one application for an active filter.
A filter is a type of electronic device which used to pass the wave of some frequency or amplifying them, and it also used to attenuate some frequency waves. Thus filter can only pass the critical frequencies signals and attenuate or does not pass the unwanted frequency signals.
Active filters are the type of filters which contain active elements in the circuit. Active elements are those elements which can generate electrical energy, so these kind of elements are present in active filters like, op-amps, resistors, capacitors. Amplifiers also used in active filters which is responsible for reducing the cost and improving the performance of the filter.
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