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A BJT amplifier is shown in figure 4. Assume VBE -0.7V, V₁-25mV, B=100 and all capacitors acts as a short circuit at the
Posted: Sun Jul 03, 2022 12:13 pm
by answerhappygod
- A Bjt Amplifier Is Shown In Figure 4 Assume Vbe 0 7v V 25mv B 100 And All Capacitors Acts As A Short Circuit At The 1 (25.49 KiB) Viewed 20 times
A BJT amplifier is shown in figure 4. Assume VBE -0.7V, V₁-25mV, B=100 and all capacitors acts as a short circuit at the operating frequency. Find voltage gain Vo/Vs? Vs Tn 10 kn 27 k0 HH 15 kn www 1.2 kn Figure 4 +9V www. 2.2 k B=100 2k0 Hint: Step1: DC analysis (Capacitor open circuit) to calculate gm = Ic/VT Step2: Use small signal equivalence circuit (all DC sources set to 0) to calculate the voltage gain B/gm