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4. Redesign the circuit so that the input voltage of V, has an increase gain of 5 and V2 is reduced in gain by a factor of 10. The input voltage of V3 is to have unity gain. Describe this procedure in your lab report in detail, and bulild this circuit.

4. Redesign the circuit so that the input voltage of V, has an increase gain of 5 and V2 is reduced in gain by a factor of 10. The input voltage of V3 is to have unity gain. Describe this procedure in your lab report in detail, and bulild this circuit.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Answer for #'s 4 and 5 please. 

**Summing Amplifier Experiment** **Objective:** To build and test a summing amplifier circuit and measure its output for different input voltages. **Circuit Diagram:** The diagram illustrates a summing amplifier using an operational amplifier with three input resistors: R1, R2, R3 (each 10kΩ) and a feedback resistor (Rf) of 10kΩ. Two 15V power supplies are connected to power the op-amp. **Procedure:** 1. **Reset Input Potentiometers:** Adjust the input potentiometers to match the specified input voltages for each step as listed in Table 1. 2. **Measure and Record Output Voltages:** Calculate expected output voltages and record them. Measure and note down the actual output voltage for each step. 3. **Redesign the Circuit (Steps 4 & 5):** - Increase the gain of input V1 by a factor of 10. - Reduce the gain of V2 by a factor of 10. - V3 to maintain unity gain. - Implement the redesigned circuit and measure the output. 4. **Set Input Voltages (Step 5):** Configure inputs as: V1=1.2V, V2=0.5V, V3=-2.5V. Measure and calculate the theoretical Vout. Discuss any differences. **Table 1: Calculated and Measured Output** | Steps | V1 | V2 | V3 | Vout (calc.) | Vout (meas.) | |-------|-----|-----|-----|--------------|--------------| | 1 | 1.5 | 2.0 | 1.0 | -4.5 | -4.569 | | 2 | 2.0 | 2.5 | 1.5 | -7 | -6.99 | | 3 | 2.5 | 3.0 | 2.0 | -7 | -6.98 | | 4 | 3.0 | 3.5 | 2.5 | -6 | -6.08 | | 5 | 2.0 | 1.5 | 0.0 | 3.5 | 3.48 | | 6 | -2
Transcribed Image Text:**Summing Amplifier Experiment** **Objective:** To build and test a summing amplifier circuit and measure its output for different input voltages. **Circuit Diagram:** The diagram illustrates a summing amplifier using an operational amplifier with three input resistors: R1, R2, R3 (each 10kΩ) and a feedback resistor (Rf) of 10kΩ. Two 15V power supplies are connected to power the op-amp. **Procedure:** 1. **Reset Input Potentiometers:** Adjust the input potentiometers to match the specified input voltages for each step as listed in Table 1. 2. **Measure and Record Output Voltages:** Calculate expected output voltages and record them. Measure and note down the actual output voltage for each step. 3. **Redesign the Circuit (Steps 4 & 5):** - Increase the gain of input V1 by a factor of 10. - Reduce the gain of V2 by a factor of 10. - V3 to maintain unity gain. - Implement the redesigned circuit and measure the output. 4. **Set Input Voltages (Step 5):** Configure inputs as: V1=1.2V, V2=0.5V, V3=-2.5V. Measure and calculate the theoretical Vout. Discuss any differences. **Table 1: Calculated and Measured Output** | Steps | V1 | V2 | V3 | Vout (calc.) | Vout (meas.) | |-------|-----|-----|-----|--------------|--------------| | 1 | 1.5 | 2.0 | 1.0 | -4.5 | -4.569 | | 2 | 2.0 | 2.5 | 1.5 | -7 | -6.99 | | 3 | 2.5 | 3.0 | 2.0 | -7 | -6.98 | | 4 | 3.0 | 3.5 | 2.5 | -6 | -6.08 | | 5 | 2.0 | 1.5 | 0.0 | 3.5 | 3.48 | | 6 | -2
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