Filter (electronics)

electronic circuit that removes unwanted components from the signal, or enhances wanted ones, or both From Wikipedia, the free encyclopedia

Filter (electronics)

Electronic filters are electrical circuits which perform signal processing functions, specifically to remove unwanted frequency components from the signal, to enhance wanted ones, or both. Electronic filters can be:

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low-pass filter.
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Frequency response of hi-pass filter

The most common types of electronic filters are linear filters, regardless of other aspects of their design. Digital filters use a Fourier transform.


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