hat is the relationship between duty cycle and gain bandwidth?

Investigate the behaviour of the quality factor as a function of frequency. Repeatthe VDC and Vripple measurements for 5 different frequencies between 60 -200 Hz. Tabulate yourvalues. What can you conclude about the relationship between Q and the signal frequency?

Q1. Clearly draw the small signal low-frequency model (with the Hybrid-π) and derive an equation for the break frequency (Hint: Find the Thevenin resistance seen by the capacitor

Q1) For the identical stages RC coupled amplifier cct. below, where re=28.480" a. Determine the value of voltage gain for each stage and overall voltage gain for cct. b. Determine fis, fic, and E for each stage. c. Determine the low cutoff frequency for the overall cct. e. Sketch approximately the low frequency response for the amplifier overall 0.47 14 V 5pF C-12 pF 8 pF C 40 pF 8 pF C C-8 p 5pF C = 8pF C 12pF 40 pF C-8 p 5.6 kQ 5.6 k 5.6 kQ 68 kn 0.47 F Vol 0.47 F Vo2 0.47 F Vo B-120 B-120 B-120 8.7k 8.7k 8.7km 10 kn 1.2 kn 20µF 1.2 km 20µF 1.2 km 20µF Q2) For the identical stages RC coupled amplifier circuit demonstrated in Q1 above, where Cwi=5 pF, Cwo = 8 pF, Cbc = 12pF, Cbe = 40 pF, and Cce = 8 pF a. Determine fand fo for each stage b. Determine the high cutoff frequency for the overall cct. c. Determine the unity-gain frequency for the circuit overall. d. Sketch approximately the high frequency response for the amplifier overall