Phasor Circuit Analysis Lab: Analyzing Node Voltages & Currents in Sinusoidal Steady State, Lab Reports of Engineering

Download Phasor Circuit Analysis Lab: Analyzing Node Voltages & Currents in Sinusoidal Steady State and more Lab Reports Engineering in PDF only on Docsity! Laboratory 9 Pre Engineering 2250 Phasor Circuit Analysis Purpose: Introduce sinusoidal steady state analysis and show that Kirchhoff’s laws apply to phasors in the frequency domain. Equipment and Components: • Prototyping board, Multimeter, Power supply, Signal Generator, Oscilloscope. • Resistors: 51 Ω, 2 x 100 Ω. • Capacitors: 1 µF. Preliminary: Using the circuit shown in Figure 8.1, prepare the following calculations. 1. Calculate the node voltages V2 and V3 for a supply frequency of f = 300 Hz and an amplitude of 5 V peak. Verify that Kirchhoff’s voltage law is not violated. 2. From the node voltages of preliminary 1, calculate the currents I1, I2, and I3. Verify that Kirchhoff’s current law is not violated. 3. Simulate the circuit using PSpice with a 5 V, 300 Hz, sinusoidal source. Treat the supply as zero phase and calculate I1, I2, I3, V2, and V3. Procedure: 1. Verify the accuracy of the test equipment. Connect the AC voltmeter and oscilloscope across the signal generator. Adjust the frequency on the signal generator to f = 300 Hz and set the amplitude to 5 V peak. a. Verify that the Peak voltage on the oscilloscope matches the RMS value of the multimeter. Note any calibration discrepancies between the voltmeter and the oscilloscope other than the expected 2 factor. b. Verify that the period of the waveform using the oscilloscope matches the expected frequency supplied by the source. Note any discrepancies. c. Switch the polarity (black to red, red to black) of the oscilloscope relative to the signal generator -- voltmeter connection. Observe the signal on the oscilloscope and record the voltmeter reading. Return connections to original polarity and repeat by reversing the polarity of the AC voltmeter relative to the oscilloscope -- signal generator connection. Describe what was observed in your lab book and obtain and record an explanation for any unexpected behavior.