Design a summing amplifier, using the circuit of Figure 5.Consider one input to be the signal source vg, which will be thesignal generator in the laboratory. The other input is a dc inputthat will be provided by the dc power supplies connected at the twooutside terminals of a 10[k] potentiometer. This configuration isalso shown in Figure 5. You may consider the dc input to be thevoltage at the wiper of the potentiometer. Let the partial gain ofthe source vg be (-2 ±10%). The dc component of vg should bezero.
The dc component of the output should range from –3[V] to +3[V],within 10%, depending on the setting of the potentiometer. That is,as the potentiometer wiper is moved from one end to the other, thedc component should change from –3[V] to +3[V]. Choose resistancevalues that you have in your kit to design this circuit. Rememberthat R2 will comprise the 50[] resistance of the signal generatorin series with the resistor from your kit.
Design A Summing Amplifier Using The Circuit Of Figure 5 Consider One Input To Be The Signal Source Vg Which Will Be 1 (23.6 KiB) Viewed 42 times
Construct the circuit that you have designed. Record theamplitude of the signal source (vg), the ac component of the output(vout), and the dc component of the output (VOUT) in Table 3. Testto see whether you have met your design criteria. The measurementsthat you made in Table 3 should assist you in this. Show theresults of your comparisons in Table 4. How well did you do?
Design A Summing Amplifier Using The Circuit Of Figure 5 Consider One Input To Be The Signal Source Vg Which Will Be 2 (22.05 KiB) Viewed 42 times
+15[V] 10[k] -15[M] R1 -MT R2 HI P4 W VOUT Figure 5. The Summing Amplifier. This design uses the signal generator and the two dc power supplies that are already being used to power the op-amp. You will design this circuit, picking values of R1, R2, and Ryto meet the design criteria.
Table 3: Summing Amplifier Measurements Vg (ac component) Vour (ac component) Vour (de component) Table 4: Summing Amplifier Partial Gains ac component de component measured theoretical % error
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