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Laboratory 10 - Laboratory 10 OPERATIONAL AMPLIFIERS Devun...

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Laboratory 10 OPERATIONAL AMPLIFIERS Devun Pahwa ENME 350 Section: 0104 April 29, 2011
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Data and Observations Part 1: Figure 1: Before Clipping Occurs
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Figure 2: As it is Clipping Figure 3: After Clipping Table 1: Data for the Clipping Process
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State Voltage In (V) Voltage Out (V) Phase Difference Before Clipping .32 2.84 180 Clipping .48 4.08 180 After Clipping .6 4.24 180 Part 2: Figure 4: Voltage In and Out with f=100Hz Table 2: Amplification Factor Theory (R 2 / R 1 ) Experimental (V out / V in ) 10 8.55 Part 3:
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Figure 5: V out and V in when f=1002Hz Figure 6: V out and V in when f=10000Hz
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Figure 7: V out and V in when f=20000Hz Figure 8: V out and V in when f=50000Hz Table 3: Varying Frequencies Analysis Frequency (Hz) Voltage In Pk- Pk(V) Voltage Out Pk- Pk(V) Gain (V out / V in ) 1002 .4 3.72 9.3 10000 .4 3.64 9.0 20000 .4 3.40 8.5
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50000 .4 2.52 6.4 Figure 9: Graph of frequency vs gain Analysis/Discussion: In part 1 we are looking at the transformation of the voltages until it the circuit reaches clipping. Figure 1 shows before the clipping occurs, Figure 2 shows as the circuit clips, and Figure 3 shows after clipping has occurred. Table 1 shows the values of each figure in an organized table with the phase difference between voltage out and in.
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In part 2 we are looking at the amplification factor when frequency set at 100Hz. The
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