Essay REET 420 Week 1 Lab DeVry
REET 420 Week 1 Lab DeVry
REET 420 Week 1 Lab Overview
Objectives
- Given an electronic-circuit waveform, be able to calculate the average and rms values.
- Given simple circuits, be able to calculate the power losses.
- Continue to develop expertise in Multisim.
Parts List
Software
- Multisim 11
Introduction
Power electronics circuits use waveforms that are much more complicated than simple dc or ac waveforms. This laboratory focuses on learning the waveforms used in controlling and delivering power, such as the half-wave rectified sine, full-wave rectified sine, rectangle, ramp, and trapezoid waveforms. It is imperative to be able to calculate the average and rms values of these waveforms and to calculate the average power delivered by these waveforms. Before beginning your Lab, download your Lab cover page here (Links to an external site.).
This Lab will use the following Lab Resources:
- Virtual Lab – Citrix
Use a personal copy of the software or access the Lab Resources, go to the Course Resources page – Lab Resources section.
- Calculate the average value of a half-wave rectified sine wave with f = 60 Hz and Vp = 170 Vp.
- Verify the value with a simulation, as shown in Figure 1 below.
- Image Description (Links to an external site.)
- Does the calculated value equal the simulation value? Why or why not?
- Calculate the rms value of a half-wave rectified sine wave with f = 60 Hz and Vp = 170 Vp.
- Verify the value with a simulation, as shown in Figure 1. This time, set the meter to read ac.
- Does the calculated value equal the simulation value? Why or why not?
- Calculate the rms value of a rectangular wave with the following parameters: frequency = 100 kHz, duty cycle = 35%, and Vp = 15 V.
- Verify the value using Multisim and the simple circuit shown below.
- Is the ac value the same as the one you calculated? Why or why not?
Image Description (Links to an external site.)
- Calculate the average power delivered from a 240 Vrms half-sine-wave voltage to a 51 Ω resistor.
- Verify the value using Multisim and the simple circuit shown below.
Image Description (Links to an external site.)
- Is the power value the same as the one you calculated? Why or why not?
- Discuss the difference between the average and the rms values and how they are calculated.
- Discuss the difference between the instantaneous power and the average power and how they are each calculated.
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