3. A hybrid model amplifier is shown below. The parameters are h₁1 = 45ohms, h21 = 80, h₂2 = 12.5 us and h12 = 5 x 104. Select RL so that the current gain i2/i1 = 79 and the input resistance of the circuit is less than 10 ohms. h11 h2111

VCC R2 RC- RI RL R1 RE VEE Assume: B=100, VA=150, Vcc=12V, VEE=GND, Rr=2K, R1=160K, R2=300K, RE=3K, Rc=2.2K, and R1=100K. Convert the circuit to a common-collector circuit. Draw the new circuit (assume the same values for the input and load resistances). Then compute the terminal voltage gain, and Rin (for the whole circuit), re-computing any parameters that you need to solve.

A type II compensator implementation for the above Buck converter is shown below. Ce2 Vout Cet HH Ret Vctrl R2 E/A Vset What should be the voltage Vref in the above type II compensator to produce 5V DC output if R# = 4k and R2=1k. а. Vet b. Write the small signal gain equation (-ctrl) between Vetrl and Vout- out с. Does R2 present in the above gain equation. Please add some explanation. d. How many poles and how many zeros are produced by this type II compensator?

Consider the two-stage amplifier in the figure below. The first stage is a differential amplifier and the second stage is a difference amplifier. Assume that Rg = 20k and you may ignore any early voltage effect. Further assume that Rc = 10k, R3 = 300k and R4 = 100k. What would be the estimated differential gain of the first stage amplifier? CRB close to 200 RB Q4 V01 Stage 1 Q3 O a. O b. close to 150 O c. close to 600 O d. close to 500 e. More information is required to calculate the gain Cm RC Q2 V02 RA R4 R3 Stage 2 -R3 741 + +10v į -10V

How did they get case 1 and case 2 and simplify break down for a dummy?