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AoE 2L.2.1 - Low-pass filter w sinusodial wave

@rigo59
10 years ago
https://everycircuit.com/circuit/4756725758951424
I selected the resistor and capacity values very close to the example in the book. The -3dB frequency f3dB is 964 Hz. I built the circuit in my lab and got these measurement results for Vout(ss): 0.01 * f3dB: 10 V 0.1 * f3dB: 9.7 V 1 * f3dB: 7.07 V 2 * f3dB: 4.28 V 4 * f3dB: 2.36 V 10 * f3dB: 1 V 100 * f3dB: 0.1 V 1.000 * f3dB: 0.01 V 10.000 * f3dB: 0.0058 V The simulation is very close to measurement values. Even for 10.000 * f3dB = (9.6 MHz) this works, but the transient plot in EveryCircuit is very cryptic. Remark: To see this, you have to close the transient plot for Vin first. Reference: Thomas C. Hayes, Learning the Art of Electronics, Cambridge University Press, 2016, page 81
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