⁠RC Lowpass Filter


A Resistor-Capacitor Lowpass Filter is a simple analog filter that allows low frequencies to pass but attenuates higher frequencies. The cutoff frequency of the filter is determined by Fc=1/2πRC.
An RC lowpass filter effectively forms a frequency dependent voltage divider. At low frequencies, the capacitor acts as a very high resistance, so the signal is attenuated very little. At higher frequencies, the capacitor has less resistance, so the signal is attenuated more.

@BasicElectronics

Basic Electronics

⁠RC Lowpass Filter


A Resistor-Capacitor Lowpass Filter is a simple analog filter that allows low frequencies to pass but attenuates higher frequencies. The cutoff frequency of the filter is determined by Fc=1/2πRC.
An RC lowpass filter effectively forms a frequency dependent voltage divider. At low frequencies, the capacitor acts as a very high resistance, so the signal is attenuated very little. At higher frequencies, the capacitor has less resistance, so the signal is attenuated more.

@BasicElectronics

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12.8K viewsedited  Oct 6, 2019 at 09:18