What does AF stand for?

Also known as: AF-, af.

AF stands for various terms. Discover the full forms, meanings, and possible interpretations of AF across different fields and industries.

Active Filter

Most Common

An active filter is a type of analog electronic filter that uses active components such as an amplifier. Amplifiers included in a filter design can be used to improve the performance and predictability of a filter, while avoiding the need for inductors (which are typically expensive compared to other components). An amplifier prevents the load impedance of the following stage from affecting the characteristics of the filter. An active filter can have complex poles and zeros without using a bulky or expensive inductor.

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