Question

Part I: Inverting Amplifier Procedure: 1. Build the circuit model for inverting amplifier in PSpice with the following parameters: Ri = 5 k 2, R2 = 20 ks2, V+ = 10 V, V-=-10 V. 2. Hand calculates the theoretical closed loop gain Vout/Vin of the circuit model. 3. Generate a triangular waveform for Vin with the amplitude of 1 V and the period of 1 ms. 4. Run simulation. a. Set circuit model parameters. i.e., for voltage source: click VPWL and fill the table, such as DC=0; AC = 0; T1 = 0; V1 = 0; T2 = 0.25 ms; V2 = 0.4 V; T3 = 0.75 ms; V3 = -0.4 V; T4 = 1 ms; V4 = 0. b. Set simulation configuration. Analysis => Setup => Transient: Print Step = 10 us; Final Time = 1 ms; No-Print Delay = 0; Step Ceiling = 10 us. c. Run simulation. Click: Analysis d. View graph: Trace => Add => Select voltage or current which you would like to see => OK 5. Save and label the waveforms of input voltage Vin and output voltage Vout. 6. BONUS question: what will the waveforms of Vin and Vout are when add a DC offset of 1 V to the input voltage. Run simulation to verify your result.

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Inverting Amplifier : R2= 2002 lov This is an inverting amplifier ciscuit. and output expression is given by Vout = -R2 Vin Ri Vout = - 20k vin 5K Vout Vini closed loop gain

Input waveform.

Design1 Transient Voltage (V) 0.0m 0.2m 0.4m 0.6m 0.8m 1.0m Time (s) Selected Diagram:Transient

Output waveform

Design1 Transient Voltage (V) c 0.0m 0.2m 0.4m 0.6m 0.8m 1.0m Time (s) V12

Input waveform including offset of 1 V

Design1 Transient Voltage (V) 0.0m 0.2m 0.4m 0.6m 1.0m 0.8m Time (s)

Output waveform after adding offset.

HELL LIL Design1 Transient Voltage (V) THE OPERATION 0.0m 0.2m 0.4m 0.6m 0.8m 1.0m Time (s)