Low-pass filter facts for kids

Kids Encyclopedia Facts
1st Order Lowpass Filter RC
A passive low-pass filter
Active Lowpass Filter RC
An active low-pass filter
Butterworth response
Signal being filtered with 1 rad/s cutoff frequency low-pass filter

A low-pass filter is an electronic filter that passes the frequency component of a signal below a certain value (cutoff frequency). The frequency component above that certain value will be suppressed to almost zero.

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Low-pass filter Facts for Kids. Kiddle Encyclopedia.