RC & RL Circuits Lab: Exploring Transient Behavior with R, C, & L, Lab Reports of Microelectronic Circuits

Download RC & RL Circuits Lab: Exploring Transient Behavior with R, C, & L and more Lab Reports Microelectronic Circuits in PDF only on Docsity! Laboratory 4 CEET 3010 RC and RL circuits Purpose: Introduce students to the transient behavior of circuits made up of resistors and inductors or capacitors. Equipment and Components: • Prototyping board, Multimeter, Power supply, Signal Generator, Oscilloscope • Resistors: 200 Ω, 2 x 10 kΩ, and 20 kΩ • Inductor: 100 mH • Capacitors: 0.1 µF Preliminary: 1. Calculate the time constants for each of the circuits shown in Figures 4.1 through 4.2. 2. Use a transient analysis in PSpice to calculate the output voltage, Vo, from each of the circuits shown in Figures 4.1 through 4.2 if Vi is: a. A 0 to 10 V square wave with a frequency of 100 Hz (The voltage Vi for this case would be entered into PSpice using a VPulse source setup with V1=0, V2=10, TD=0, TR=1u, TF=1u, PW=5m, PER=10m. b. A 0 to 10 V square wave with a frequency of 1 kHz. c. A 0 to 10 V square wave with a frequency of 10 kHz. Use a transient analysis in PSpice and make plots using of Vi and Vo for multiple cycles in each case. Procedure: 1. Create the circuit shown in Figure 4.1. Observe Vo with an input signal of a 0 to 10 Volt, 1-kHz square wave. Adjust the frequency at least over the range from 100 Hz to 10 kHz and observe the output. With the frequency at 100 Hz or less, measure the time constant with an oscilloscope by two methods: a. The time it take the waveform to transverse one time constant. (e-1 , t=τ) HINT: Take the full swing and calculate 36.8% of its total excursion. Then measure how long it takes from the initial change to reach this value. b. Extending the initial slope of the exponential. HINT: One time constant can also be approximated by extending the initial slope after the initial change to the point where it crosses the final value.