LAoE 4L.4 Common-emitter amplifier - measuring the input impedance
@nemethakos
9 years ago
https://everycircuit.com/circuit/6098847231377408
- What is the input impedance of the circuit?
Adjust Rsource until the output signal halves
When Rsource=0, Vpp=9.91V-8.02V=1.89V
Adjust Rsource until Vpp=0.945
Rin≈5KΩ
f3db=1/(2π⋅Rin*C)
f3db≈100Hz
