first-order low pass active filter

Modeling of active low pass filter by using Simulink / Simscape

The primary components in an active LPF are:

Operational Amplifier (Op-Amp): The heart of the circuit, amplifying the filtered signal. Resistors: Determine the cutoff frequency and gain.

Capacitor: Blocks high-frequency signals.

Then the operation of an active low-pass filter is verified by analyzing its frequency gain equation, which shows that:

1.Low frequencies: Pass through with minimal attenuation

2.High frequencies: Are significantly attenuated

3. Cutoff frequency: The point at which the gain drops to 70.7% of its maximum value.

https://youtu.be/4uwa1PHpAGQ?si=WcoT4oY6xaMQpF_4