Laboratory Experiment: Implementing Functions with Operational Amplifiers in ENGR 2250 - P, Lab Reports of Engineering

Download Laboratory Experiment: Implementing Functions with Operational Amplifiers in ENGR 2250 - P and more Lab Reports Engineering in PDF only on Docsity! Laboratory 6 ENGR 2250 Implementing Functions with Operational Amplifiers Purpose: Learn how the combinations of resistors, capacitors, inductors and Op Amps can be used to perform calculus functions. Equipment and Components: • Prototyping board, Multimeter, Power supply, Signal Generator, Oscilloscope • Resistors: 2.2 kΩ, additional resistors may be needed due to designs. • Capacitors: 0.1 µF • TL084 Op-Amp, LM 741 Op-Amp, or equivalent part. Preliminary: 1. For the circuit in Figure 6.1, derive the governing input-output relationship and calculate the output given a. A -2 to 2 V sine wave with a frequency of 1 kHz. b. A 0 to 5 V square wave with a frequency of 1 kHz (Approximate it as a 5 V DC power supply that turns on and off) 2. Using the PSpice schematic editor, create the circuit in Figure 6.1. Use the PSpice model of the TL084 op-amp that is included in opamp.olb or eval.olb in your simulation. Set the rail voltages at +15 volts. Set the initial conditions on the capacitor to 0 Volts, (IC=0), and use the initial conditions when running the transient analysis. Drive the circuit with the following waveforms: a. A -2 to 2 V sine wave with a frequency of 1 kHz. b. A 0 to 5 V square wave with a frequency of 1 kHz (The voltage Vi for this case would be entered into PSpice using a VPulse source setup with V1=0, V2=5, TD=0, TR=1u, TF=1u, PW=.5m, PER=1m.) Use a transient analysis in PSpice and make plots of Vi and Vo over several periods for each case. 3. Repeat the PSpice simulations outlined in Preliminary 2 for the circuit shown in Figure 3.2. Procedure: General-purpose op-amps can be found in many configurations. Please remember to turn off all power supplies to your circuit before making modifications to your circuits.