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The objective of this lab was to experiment with a negative feedback amplifier and predict its gain without the feedback.
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20ECES465 Electronics Laboratory Section 001 11/04/03 Objective The objective of this lab was to experiment with a negative feedback amplifier and predict its gain without the feedback. Procedure After connecting the circuit per specifications in part one of the lab manual and verifying 7the voltage input and output we manipulated RFEEDBACK2 in order to achieve a gain of 100 v/v at a frequency of 1 KHz. We then made a screen dump of the Acircuit value. Since we were experimenting in the real world we could not use the ideal values for the components. Table 1 shows the ideal values called for in the lab report and the actual resistance values measured by a multimeter. Table 1: Resistance values Ideal (?) Real (?) 12.28k 12.26k 78.7k 78.6k 1.85k 1.85k 8.77k 8.8k 12.28k 12.29k 78.7k 78.7k 8.77k 8.74k 1.75k 1.750k We then swept the voltage in order to find the fH frequency. We then solved Equation 1 to get the feedback factor H. After we isolated H we could then predict what the gain of the...
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