I am going to understand this stuff and if it kills me.
I have uploaded a simple CE voltage amplifier schematic as modified by Jony.
I believe the DC gain is 2.7K / 380 ohms = 7.1 and before C3 and R5 are added,
the AC gain is also 7.1. Although the simulation says the AC gain is 4.5.
Once C3 and R5 are added, I believe that the AC gain is 2.7K / [(380 * 9.1) / (380 + 9.1)] = 303.
However, the simulation says that the AC gain is 100.
With this type of negative feedback, is AC gain = Rc / Re//Rfeedback?
I am confused.
David.
I have uploaded a simple CE voltage amplifier schematic as modified by Jony.
I believe the DC gain is 2.7K / 380 ohms = 7.1 and before C3 and R5 are added,
the AC gain is also 7.1. Although the simulation says the AC gain is 4.5.
Once C3 and R5 are added, I believe that the AC gain is 2.7K / [(380 * 9.1) / (380 + 9.1)] = 303.
However, the simulation says that the AC gain is 100.
With this type of negative feedback, is AC gain = Rc / Re//Rfeedback?
I am confused.
David.
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