EMAGS Study Guide - Diac, Potentiometer, Autotransformer
8 Jan 2022
Department
Course
Professor
Document Summary
To be able to test and verify the operation of the diac-triac / quadrac phase control circuit. To determine the effects of the resistance-capacitance network on the power delivered to the load. 1 - mylar capacitor, 0. 1 f, 50 v. Construct the experimental circuit as shown in figure 1. Using the ohmmeter function of the vom, adjust the potentiometer to its maximum resistance. Place the positive probe of the oscilloscope at point a and the ground clip at point b. Observe and draw the waveform on graph a. Place the positive probe of the oscilloscope at point b and the ground clip at point c. observe and draw the waveform on graph b. Slowly decrease the potentiometer resistance by turning its shaft until a little glow on the lamp appears. Observe the waveforms across points a and b and points b and c. draw the waveforms on graphs c and d respectively.
