Question is attached
a) Find an expression for Vout/Vs (i.e. voltage gain from signal to load) using given parameters Rs, Rin, Rout, RL and Kv. (Hint: You can use Vout/Vs = (Vout/Vin) ×(Vin/Vs))
b) Let’s say Rs = 10kΩ, Rin = 1kΩ, Rout = 100kΩ, RL = 100Ω, Kv = 100. Find Vout/Vs. Assume that we are not able to change Rs, RL and Kv. How can we achieve higher Vout/Vs? Discuss whether large or small resistors values are desirable for Rin and Rout in order to obtain high voltage gain from signal to load? Explain based on your expression from part a).
Extracted text: 1) Amplifier Model Rs Rout Vin Rin Kv x Vin Vouti Vs R The figure above shows an amplifier model (using a voltage-controlled voltage source). Notice that, this is just one way to model an amplifier. There are different types of models of an amplifier but all models give the same input-output characteristics. You can simply obtain other models by using Thevenin Norton conversion. We want to connect a signal source (AC, DC or a combination of them) to the input of our amplifier and a load resistor R1 to the output of our amplifier as shown by dashed lines. Rin is the input resistance, Rout is the output resistance and K, is the voltage gain parameter of the amplifier. a) Find an expression for Veu V, (i.e. voltage gain from signal to load) using given parameters R., Rin, Romt, RL and Kr. (Hint: You can use Vou'V, = (Vos Vin) X(Vin v.)) b) Let's say R, = 10k2, Rin = 1k2, Rour = 100k2, R1 = 10092, K; = 100. Find Vom V. Assume that we are not able to change R., RL and Ky. How can we achieve higher Vom/ V;? Discuss whether large or small resistors values are desirable for Rin and Rout in order to obtain high voltage gain from signal to load? Explain based on your expression from part a).