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Hi-fi audio amplifiers are usually built as discrete operational amplifiers with a relatively large gain (g ? 500) and with feedback that reduces the closed-loop gain to a smaller value k = 32. Since loudspeakers predominatly act like a resistor (nominal impedance: 8 ) with an inductor in series, the feedback network can be used to improve the frequency response in the audio range up to 20 kHz. We are primarily concerned with gain and frequency response of the amplifier....
D. Since a frequency response as seen in C. is clearly unacceptable, the capacitor Cl is used to decrease the feedback signal at higher frequencies. Components are chosen as follows: R1-320k2, R2-10k2, C1-4.7nF. The transfer function of the feedback network is therefore 10, 000 Ro GRVoUT() urs) RRC1+RR 15.5330, 000 Determine the combined transfer function IsPx(s)/V(s) when the frequency compensation capacitor CI is installed and determine the poles and zeros (if any) of the new transfer function. [10 points] Problem1...