REET 420 Full Course DeVry

1. REET 420 Full Course DeVry Just Click on Below Link To Download This Course: https://www.coursetutor.us/product/reet-420-full-course-devry/ Or Email us on help@coursetutor.us REET 420 Full Course DeVry Power Electronic and Alternative Energy Applications with Lab DeVry REET 420 Week 1 Overview of Power Electronic Engineering and Applications REET 420 Week 1 Discussion WEEK 1: CONVENTIONAL POWER SOURCES Every week there will be a couple of TED talks posted for discussion. Please choose one and elaborate on your comments. As you respond, make sure to reference the title of the TED talk in your comment 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

2. by these waveforms. Before beginning your Lab, download your Lab cover page here (Links to an external site.). Required Software 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. Lab Steps STEP 1: The Half-Wave Rectified Sine Wave 1.Calculate the average value of a half-wave rectified sine wave with f = 60 Hz and Vp = 170 Vp. 2.Verify the value with a simulation, as shown in Figure 1 below. Image Description (Links to an external site.) 3.Does the calculated value equal the simulation value? Why or why not? 4.Calculate the rms value of a half-wave rectified sine wave with f = 60 Hz and Vp = 170 Vp. 5.Verify the value with a simulation, as shown in Figure 1. This time, set the meter to read ac. 6.Does the calculated value equal the simulation value? Why or why not? STEP 2: Average Value of a Rectangular Wave 1.Calculate the rms value of a rectangular wave with the following parameters: frequency = 100 kHz, duty cycle = 35%, and Vp = 15 V. 2.Verify the value using Multisim and the simple circuit shown below. 3.Is the ac value the same as the one you calculated? Why or why not?

3. Image Description (Links to an external site.) STEP 3: Power Delivered to the Transistor 1. 1.Calculate the average power delivered from a 240 Vrms half-sine-wave voltage to a 51 Ω resistor. 2.Verify the value using Multisim and the simple circuit shown below. Image Description (Links to an external site.) 3.Is the power value the same as the one you calculated? Why or why not? STEP 4: Questions and Discussion 1.Discuss the difference between the average and the rms values and how they are calculated. 2.Discuss the difference between the instantaneous power and the average power and how they are each calculated. REET 420 Week 1 Assignment Complete and submit the following assignment: Chapter 2, pp.100-101, problems 2-1 and 2-2. Keep a copy of your homework for your review!

4. REET 420 Week 2 Power Parameter Calculations REET 420 Week 2 Discussion WEEK 2: APPLICATIONS OF POWER-PARAMETER CALCULATIONS What is power and how do you calculate it from the energy? REET 420 Week 2 Lab Overview Objectives  Given an operational amplifier circuit, be able to recognize the effects of the biasing components on the input biasing current and the output voltage.  Given an operational amplifier circuit, be able to compute the power consumed by the load, the power provided by the dc supplies, and the power that the op amp must be able to dissipate.  Continue to develop expertise with Multisim. Parts List Software  Multisim 11 Introduction One of the most convenient ways to control the power to lower power loads is with an operational amplifier. It is important to understand the effect of adding gain to the op amp circuit and to be able to calculate the output voltage. Op amps may, typically, be powered by over 50 V at 5 A. Working with this much voltage and current requires you to anticipate the power delivered to the load, the power provided by the dc supplies, and the power that the op amp must be able to dissipate. Before beginning your Lab, download your Lab cover page here (Links to an external site.). Required Software 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. Lab Steps STEP 1: The Noninverting Op Amp

5. 1.When biasing the op amp, proper consideration must be given to the effect of the input bias current. Higher power op amps, such as the OPA548, are typically configured very similarly to the familiar LM741. Simulate the circuit shown below, and confirm the input bias current and the output voltage. 2.Run the simulation again, setting Rf= 10 kΩ andRi= 100 Ω. What are the new values for the input biasing current and the output voltage? Image Description (Links to an external site.) STEP 2: DC Signal, Power Op Amp Calculations 1.Calculate the power delivered to the load, provided by the supply, and dissipated by the op amp for the circuit shown below. It is running from + and – 12 Vdc and delivering 5 Vdc to a 10 Ω resistive load. Include all of your work for full credit. 2.Simulate the circuit to verify your results, and include figures of the wattmeter readings in your report. 3.Decrease the power supply to 10 V and recompute the power losses, as in part 1.

6. Image Description (Links to an external site.) STEP 3: AC Signal, Power Op Amp Calculations 1.Calculate the power delivered to the load, provided by the supply, and dissipated by the op amp for the circuit shown below. It is running from + and – 12 Vdc and delivering a 5 Vp sine wave to a 10 Ω resistive load. Include all of your work for full credit. 2.Simulate the circuit to verify your results, and include figures of the wattmeter readings in your report. Image Description (Links to an external site.) STEP 4: Questions and Discussion

7. 1.Why is it important to carefully compute the power consumption in power op amp circuits? 2.Under what operating conditions, does the worst case power dissipation for an op amp occur? REET 420 Week 2 Assignment Complete and submit the following assignment: Chapter 3, pp. 156-157, problems 3-1 through 3-9. Keep a copy of your homework for your review! REET 420 Week 3 Linear Power Amplifier Integrated Circuits REET 420 Week 1 Discussion WEEK 3: APPLICATIONS OF LINEAR-POWER-AMPLIFIER-INTEGRATED CIRCUITS (LPAI) Welcome to Week 3! What is internal thermal protection? REET 420 Week 3 Lab Overview Objectives  Given a Class A amplifier, verify the dc and ac performance.  Understand the difference between a Class A and a Class B amplifier, and be able to calculate the resistor values to establish Class B operation.  Be able to use an inverting amplifier using a push-pull configuration.  Continue to develop expertise with Multisim. Parts List Software  Multisim 11 Introduction To deliver more power than is possible using op amp integrated circuits, you have to build an amplifier circuit from discrete components, including resistors, capacitors, diodes, transistors, and op amps. You can build discrete amplifiers capable of delivering several watts of power. The laboratory uses a Class A, common-drain amplifier; a Class B, push-pull amplifier; and a Class B amplifier with an op amp driver as examples. Before beginning your Lab, download your Lab cover page here (Links to an external site.). Required Software This Lab will use the following Lab Resources:  Virtual Lab – Citrix

8. Use a personal copy of the software or access the Lab Resources, go to the Course Resources page – Lab Resources section. Lab Steps STEP 1: The Class A, Common-Drain Amplifier 1.When modeling the Class A, common-drain amplifier, the capacitors and the dc voltage supply are replaced with shorts. Using the circuit in the figure below, verify the dc and ac performance of the amplifier. 2.Using the oscilloscope function, determine how large the output can be before it begins to distort. 3.Calculate the power required by the supply and the power delivered to the load. (Show all work for full credit.) Image Description (Links to an external site.) STEP 2: The Push Amplifier 1.Given the circuit shown in the figure below, verify that the transistor is biased at ID = 0 Adc. 2.Calculate the gate voltage, vg, when V1 = 40 Vp. 3.Simulate the circuit to verify your results, and include figures of the voltage and the current readings in your report. 4.Show the graph of the voltage across the output resistor R3. 5.Calculate the power dissipated by the load when V1 = 40 Vp.

9. Image Description (Links to an external site.) STEP 3: The Inverting Amplifier Using a Push-Pull Configuration 1.Design an inverting amplifier to meet the following requirements.ein = +4 dBu at audio frequencies40 W to a 5 Ω loadinput impedance 4.9 k ΩTA = 40° C and Tj max = 140° Cpower supplies: ±18Vdc and ±28Vdc, each at 6 Adc Show all work. Enter the finished schematic in Multisim for full credit. STEP 4: Questions and Discussion 1.Carefully explain how to properly configure a Class A amplifier to produce very little distortion. 2.Explain the common ways to protect your amplifier design from catastrophic failure. REET 420 Week 3 Assignment Complete and submit the following assignment: Chapter 4, pp. 204-207, problems 4-1, 4-3, 4-12, 4-13, and 4-16. REET 420 Week 4 Discrete Linear Power Amplifiers REET 420 Week 4 Discussion WEEK 4: APPLICATIONS OF DISCRETE-LINEAR-POWER AMPLIFIERS Welcome to Week 4! Time is flying by and we have covered so many concepts before now! Half of the way to the end. No TED Talk options this week. Questions are below.

10. What is current limiting? How and why is current limiting implemented? REET 420 Week 4 Lab Overview Objectives  Given a bipolar junction transistor switch circuit, simulate it to confirm its operation.  Given an n-channel, low-side switch circuit, simulate it to confirm its operation.  Given a p-channel, high-side switch circuit, simulate it to confirm its operation.  Continue to develop expertise with Multisim. Parts List Software  Multisim 11 Introduction Linear amplifiers can deliver hundreds of watts of power to a load, but more than half of the power is often dissipated by the active device. The device is, essentially, on all the time, regardless of the power demanded by the load. Switching circuits can regulate power much more efficiently to a load because, when the switch if off, very little power is lost. Switching circuits typically achieve greater than 90% efficiency. To realize this efficiency, transistor switches must be operated very quickly and very precisely. This laboratory carefully examines the switching characteristics of the BJT and the MOSFET. These are the two semiconductor switches used for most lower power converter applications. Before beginning your Lab, download your Lab cover page here (Links to an external site.). Required Software 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. Lab Steps STEP 1: The Bipolar Junction Transistor Switch 1.For the bipolar transistor shown in the circuit below, VCE(sat) = 0.8V and β = 20. Calculate IC, Pload, PQ, and Ibase.

11. 2.Enter the circuit into Multisim, show the output waveform, and verify the numbers with calculated one. 3.Show the graph of VCE versus Vbase. Image Description (Links to an external site.) STEP 2: The N-Channel, Low-Side Switch 1.Use the circuit below to investigate the speed of an n-channel enhancement mode MOSFET in response to an input of 100 kHz, 50% duty cycle, and 5 Vp. 2.Adjust the oscilloscope controls and the cursors to measure tstorage, trise, tdelay, and tfall. Include the graph with explanations in your report. Image Description (Links to an external site.)

12. STEP 3: P-Channel, High-Side Switch 1.For the circuit below, determine the voltage at each of the nodes when ein = 2.6 Vp. 2.When ein is at 30 kHz and 80% duty cycle, calculate Pload, PQ, and ΘSA (TJ max = 140° C and TA = 50°C with a mica wafer). 3.Confirm steps 1 and 2 by simulation. Include the graphs of the node voltages in your report. 4.Explain any differences in your calculated and simulated results. Image Description (Links to an external site.) STEP 4: Questions and Discussion 1.Compare the pros and cons of linear versus switching regulator circuits. 2.Explain fully the concepts of tstorage, trise, tdelay, and tfall in switching converter circuits. REET 420 Week 4 Assignment Complete and submit the following assignment: Chapter 5, pp. 261-263, problems 5-1 , 5-2, 5-6, 5-13, and 5- 14. REET 420 Week 5 Power Switches and Thyristors REET 420 Week 5 Discussion WEEK 5: DEVICES USED AS POWER SWITCHES Welcome to Week 5! No TED Talk options this week. Questions are below. How is a diode switch used in a power circuit?

13. REET 420 Week 5 Lab Overview Objectives  Design a buck converter using an LM2595. Introduction The buck regulator is the basic circuit required to convert a high-voltage, dc input to a lower voltage, dc output. Also known as a step-down regulator, the buck consists of several key power components, including the transistor switch, the free-wheel diode, and the output inductor and capacitor. When a buck converter is driven from an ac line in, it is known as an ac/dc buck converter and is typically preceded in the circuit by a full-wave rectifier that converts the ac to an unregulated dc that is input into the buck. It is crucial to be able to select the major components of the discrete buck in order to deliver the specified, regulated output voltage reliably. The voltage regulation is typically handled by an IC controller, such as the LM2595, which must be properly applied by the designer. Before beginning your Lab, download your Lab cover page here (Links to an external site.). Required Software 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. Lab Steps STEP 1: The Buck Regulator 1.Design a buck regulator using an LM2595 to convert an unregulated input voltage of 15 Vdc to an output of 5 Vdcand then into a 12 Ω resistor. Select and properly specify all the necessary components, including heat sinks. Assume that the ambient temperature is 50° C. Show all necessary work for full credit. 2.Be sure to calculate the power and the current that must be provided to the regulator, the inductor’s inductance and current ratings, the power that the transistor and the diode must dissipate, and the value of the output capacitor. 3.Once the components have been properly selected, go to a vendor, such as Digikey, Newark, or Radio Shack, and find the component part numbers. Change your design, if necessary, to be able to use components that are readily available.

14. 4.Calculate the feedback resistors, power, and current that must be provided to the LM2585 regulator, the power that the IC must dissipate, and the junction temperature, assuming that the ambient temperature is 50° C with no regulator heat sink. STEP 3: Questions and Discussion 1.Explain the operation of the LM2595 buck regulator IC. 2.Explain the concept of ripple current and why it should be minimized in your circuit. REET 420 Week 5 Assignment Complete and submit the following assignment: Chapter 6: pp. 316-319, problems 6-1, 6-4, and 6-8 Chapter 8: p. 433, problems 8-1 and 8-7 REET 420 Week 6 Switching Power Supplies REET 420 Week 6 Discussion WEEK 6: THE OPERATION OF AN ALTERNATIVE POWER SYSTEM Welcome to Week 6! No TED Talk options this week. Questions are below. Describe the power characteristics of a solar panel. REET 420 Week 6 Lab Overview Objectives  Given a simple SCR circuit, confirm the switching characteristics by simulation.  Continue to develop expertise with Multisim. Parts List Software  Multisim 11 Introduction Thyristors are the power horses of semiconductor switches. Thyristors are a broad classification of bipolar- conducting, semiconductor devices that have four (or more) alternating N-P-N-P layers. Thyristors include a silicon-controlled rectifier (SCR), TRIAC, gate turn-off switch (GTO), silicon-controlled switch (SCS), ac

15. diode (DIAC), unijunction transistor (UJT), and programmable unijunction transistor (PUT). Some are specifically designed to work from commercial power lines to control line voltage and deliver thousands of watts of power at over 98% efficiency. To control the operation of the thyristor, the designer must be able to apply it properly to its application and trigger it accurately, providing the correct amplitude and duration pulse. Adjusting power to the load proportionally by controlling when a thyristor switch turns on takes some special design effort. Before beginning your Lab, download your Lab cover page here (Links to an external site.). Required Software 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. Lab Steps STEP 1: Thyristor Operating Characteristics 1.Enter the thyristor circuit below into Multisim and verify the following. a.If the switch is open, the SCR does not turn on. b.Once turned on, the SCR stays on for the remainder of the cycle. c.The SCR turns off every negative half cycle and must be triggered back on. 2.Include in your report an oscilloscope graph showing that (1) when the switch is closed, the SCR fires early in each positive half cycle and stays on for that entire half cycle and that (2) when the line current goes negative, the SCR turns off and stays off for the remainder of that negative half cycle.

16. Image Description (Links to an external site.) STEP 2: Thyristor Phase-Angle Firing 1.Given the circuit shown in the figure below, confirm the performance of the control circuit. Make sure to include oscilloscope graphs in your report. 2.Thoroughly explain the performance of the control circuit. 3.What must be done to the circuit if the control voltage only goes from 0 to 5 Vdc? Verify your answer by simulation with Vcontrol = 2.5 Vdc. Image Description (Links to an external site.) STEP 3: Questions and Discussion

17. 1.Describe the SCR, and be sure to use its key parameters. 2.Explain the use of snubbers for thyristor circuits. Be sure to include justification for why they are such critical components. REET 420 Week 6 Assignment Complete and submit the following assignment: Chapter 7, pp. 374-377, problems 7-1, 7-5, 7-9, 7-13, and 7- 19 REET 420 Week 7 Power Converter Systems REET 420 Week 1 Discussion WEEK 7: POWER-CONVERTER SYSTEMS Welcome to Week 7! No TED Talk options this week. Questions are below. What is the difference between a single-phase and a three-phase ac signal? REET 420 Week 7 Assignment Objectives  Design a boost converter Introduction The boost regulator is the basic circuit required to convert a low voltage dc input to a higher voltage dc output. Also known as a step-up regulator, the buck consists of several key power components including the transistor switch, “free-wheel” diode, the output inductor and capacitor. When a boost converter is driven from an ac line-in, it is known as an ac/dc boost converter and is typically preceded in the circuit by a full wave rectifier that converts the ac to an unregulated dc that is input into the buck. It is crucial to be able to select the major components of the discrete buck in order to deliver the specified regulated output voltage reliably. The voltage regulation is typically handled by an IC controller like the LM2585 which must be properly applied by the designer. Before beginning your Lab, download your lab7 cover sheet from file folder. Required Software This Lab will use the following Lab Resources:  Virtual Lab – Citrix

18. Use a personal copy of the software or access the Lab Resources, go to the Course Resources page – Lab Resources section. Lab Steps STEP 1: Design a Boost Regulator 1.Design a buck regulator using a LM2585 to convert an unregulated input voltage of 10 Vdc to an output of 24 Vdc at 0.5 Adc. Use a controller frequency of 100 kHz. Assume that the transistor has an on resistance of 0.4Ω and that the diode drop 0.5Vp when it is on. Select and properly specify all necessary components. Assume that the ambient temperature is 50° C. Show all necessary work for full credit. 2.Be sure to calculate the power and current that must be provided to the regulator, the inductor’s inductance and current ratings, the power that the transistor and the diode must dissipate, and the value of the output capacitor. 3.Once the components have been properly selected, go to a vendor like Digikey, Newark, or Radio Shack and find the component part numbers. Change your design if necessary to be able to use components that are readily available. 4.Calculate the feedback resistors, power, and current that must be provided to the LM2585 regulator, the power that the IC must dissipate, and the junction temperature assuming that the ambient temperature is 50° C with no heat sink. STEP 2: Questions and Discussion 1.Explain fully the operation of the LM2585 Boost Regulator IC. 2.What is the difference between a boost and a flyback converter? REET 420 Week 7 Assignment Complete and submit the following assignment: Chapter 9, pp. 509-512, problems 9-1, 9-11, 9-20, 9-23, and 9-37 REET 420 Week 8 REET 420 Week 1 Discussion WEEK 8: LOOKING AHEAD Class, looking back over the Course Objectives for this course, what are you looking forward to learning more about throughout your education and career?

19. REET 420 Week 1 Library Research Paper A library research paper is due this week. The topic is the operation of an alternative power system, such as a solar panel, a solar-thermal system, a wind turbine, a biomass system, a geothermal system, or a fuel cell. Please review the Research Paper requirements located in the Introduction & Resources area under Modules and submit your assignment Download Now