Active lowpass filter based on opamp - with ac gain and dc gain
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YouTubeElectronics Education
Active lowpass filter based on opamp - with ac gain and dc gain
This Active Low Pass Filter uses an op-amp with R₁, R₂, and capacitor C to control signal gain and frequency response. The DC Gain (Aᵥ₀) is the gain at zero frequency (steady-state), where the capacitor acts as an open circuit, giving Aᵥ₀ = -R₂/R₁. The AC Gain (Aᵥ) varies with frequency — as frequency increases, the ...
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