Motors and Motor Control Circuits
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Motors and Motor Control Circuits
This course is part of Embedding Sensors and Motors Specialization
Instructors: Jay Mendelson
55,822 already enrolled
Included with
1,427 reviews
1,427 reviews
What you'll learn
Understand how to specify the proper AC or DC motor for a machine design
Integrate the motor to a machine, based on analysis of motor equations for voltage, current, torque and speed
Implement the motor and accompanying rotary sensor into a motor control circuit in both hardware and software
Create hardware and firmware to process motor feedback data to a microprocessor for further evaluation
Skills you'll gain
Tools you'll learn
Details to know
6 assignments
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There are 5 modules in this course
This course can also be taken for academic credit as ECEA 5341, part of CU Boulder’s Master of Science in Electrical Engineering degree.
This is our second course in our specialization on Embedding Sensor and Motors. To get the most out of this course, you should first take our first course entitled Sensors and Sensor Circuits. Our first course gives you a tutorial on how to use the hardware and software development kit we have chosen for the lab exercises. This second course assumes that you already know how to use the kit. After taking this course, you will be able to: ● Understand how to specify the proper AC or DC motor for a machine design. ● Integrate the motor to a machine, based on analysis of motor equations for voltage, current, torque and speed. ● Implement the motor and accompanying rotary sensor into a motor control circuit in both hardware and software. ● Add a motor and motor control circuit into a microprocessor based development kit. ● Create hardware and firmware to process motor feedback data to a microprocessor for further evaluation. This course includes specific hardware and software requirements. Please review the FAQ below for complete details.
In module 1 you will learn principles of operation of AC induction motors, both single and 3-phase types. You well then learn how to interpret data from torque speed curves, and how to optimize data in these curves based on electrical resistance, inductance, and capacitance. Then you will learn about different types of single phase motors, featuring a video analysis of a split phase motor used in a clothing dryer. You will also learn about typical applications for single phase motors, which will assist you in picking the right one for an application.
What's included
8 videos4 readings1 assignment1 discussion prompt
8 videos•Total 49 minutes
- 1: Course Introduction•1 minute
- 2: Three-phase AC Motor Architecture•6 minutes
- 3: Torque-speed Curves•7 minutes
- 4: Wound Rotor and Synchronous Motors•6 minutes
- 5: Single Phase AC Motors•2 minutes
- 6: Split Phase Motor•9 minutes
- 7: Capacitor Start and Shaded Pole Motors•6 minutes
- 8: Universal and Gear Motors•12 minutes
4 readings•Total 251 minutes
- Course Updates and Accessibility Support•1 minute
- Non-Credit Students: Welcome and Where to Find Help•10 minutes
- Reading Assignments•180 minutes
- Video Assignments•60 minutes
1 assignment•Total 30 minutes
- Week 1 Quiz•30 minutes
1 discussion prompt•Total 10 minutes
- Introduce Yourself•10 minutes
In module 2 you will learn the details of AC motor specifications and enclosures, as well as how these details are governed by national and international design standards. Then you will learn a detailed methodology for researching design requirements for AC motors, and how to use these requirements to pick the right motor for your needs. Afterwards, you will have lessons on AC motor control components and systems, both manual and automatic. This will culminate in training for you on AC variable speed drives.
What's included
8 videos2 readings1 assignment
8 videos•Total 64 minutes
- 1. Module 2 Introduction•1 minute
- 2. AC Motor Specifications•12 minutes
- 3. AC Motor Enclosures•11 minutes
- 4. Specifying an AC Motor for an Application•16 minutes
- 5. AC Motor Control Components•6 minutes
- 6. Manual Motor Starting Systems•5 minutes
- 7. Star/Delta Motor Starter Systems•6 minutes
- 8. AC Variable Speed Drives•8 minutes
2 readings•Total 240 minutes
- Reading Assignments•180 minutes
- Video Assignments•60 minutes
1 assignment•Total 30 minutes
- Week 2 Quiz•30 minutes
In module 3 you will learn principles of DC motors, traditional brushed motors, as well as electronically driven brushless motors. We will discuss shunt wound, series wound, compound wound, servo, stepper, and torque motors, with detailed explanation of how commutation and control is implemented in these designs. We will have a lab exercise for you on DC motor speed measurement. We will have another video analysis for you, this time featuring teardown of a paper shredder. Then you will learn a detailed methodology for researching design requirements for DC motors, and how to use these requirements to pick the right motor for your needs.
What's included
9 videos2 readings1 assignment
9 videos•Total 77 minutes
- 1. Module 3 Introduction•2 minutes
- 2. DC Motor Principle of Operation•5 minutes
- 3. Brushed DC Motors•7 minutes
- 4. Shunt, Series, and Compound Wound Motors•8 minutes
- 5. Brushless DC Motors•7 minutes
- 6. Driving a brushless DC motor•13 minutes
- 7. Commutation•11 minutes
- 8. Paper Shredder Teardown•16 minutes
- 9. Specifying a DC Motor•8 minutes
2 readings•Total 240 minutes
- Reading Assignments•180 minutes
- Video Assignments•60 minutes
1 assignment•Total 30 minutes
- Week 3 Quiz•30 minutes
In module 4 you will start off with another lab exercise, this time gaining hands-on experience with DC motor control. Then, we will illustrate a simplified stepper motor drive, so you will understand the basic principles involved in stepper motor control. Next, you will do a deep dive into stepper motor specs, operation and commercial driver chips and packages. You will then do another lab exercise, this time on actuating a rotary sensor. We end the module with a comparison of DC vs. AC motors, so you take away a core understanding of their pros and cons.
What's included
8 videos3 readings1 assignment
8 videos•Total 78 minutes
- 1. Module 4 Introduction•1 minute
- 2. Lab Exercise on Motor Voltage and Current Measurement•25 minutes
- 3. Stepper Motor Principles of Operation•9 minutes
- 4. Illustrative Example of a Stepper Motor Drive•7 minutes
- 5. Stepper Motor Specs and Operation•9 minutes
- 6. Commercial Stepper Motor Driver Chips and Packages•8 minutes
- 7. Lab Exercise on Rotary Sensor•13 minutes
- 8. DC vs. AC Motors•6 minutes
3 readings•Total 250 minutes
- Hardware & Software Requirements•10 minutes
- Reading Assignments•180 minutes
- Video Assignments•60 minutes
1 assignment•Total 30 minutes
- Week 4 Quiz•30 minutes
In this module you will perform your lab work for the Course. There will be two labs
What's included
4 readings2 assignments
4 readings•Total 740 minutes
- Motor Voltage and Current Measurement Assignment•360 minutes
- Motor Voltage and Current Measurement Screen Shots•10 minutes
- Rotary Switch Assignment•360 minutes
- Rotary Lab Screen Shots•10 minutes
2 assignments•Total 60 minutes
- Course Project 1•30 minutes
- Course Project 2•30 minutes
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This course is part of the following degree program(s) offered by University of Colorado Boulder. If you are admitted and enroll, your completed coursework may count toward your degree learning and your progress can transfer with you.¹
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Reviewed on Mar 5, 2019
This course is a fantastic review or introduction to AC and DC motors. I highly recommend it to anyone in automation or robotic controls.
Reviewed on Aug 1, 2020
it give some basic knowlege about motors and its working and also some knowlege about how to choose specific motor for your project or work th eway of teaching and explaing facts is also very good
Reviewed on May 4, 2024
Learned a lot of the mechanics and theory of AC and DC motors with great professors to lecture and provide the information!
Frequently asked questions
Hardware Requirements
You will need to buy the following components in order to complete the labs in this course. These parts may be purchased off the DigiKey website, www.Digikey.com. Or, you may obtain the specs from the site, and purchase them elsewhere.
You need one of each of these parts, except for the AA batteries (N107-ND), for which you will need three:
● 428-3390-ND (PSOC 5LP Prototyping kit)
● 942-PPN7PA12C1-ND
● 846-R6018VNXC7G-ND
● N107-ND
● 1N5393-E3/54GICT-ND
● RNF14FTD1K00CT-ND
● P0.62W-1BK-ND
● 987-1188-ND
Additional Hardware Used in this Specialization
● Breadboard
● Wire (various gauges and lengths)
● Oscilloscope
The courses will also invite you to use a USB-connected oscilloscope. If you do not already have one, faculty have suggested the following model:
Other models recommended include:
To access the course materials, assignments and to earn a Certificate, you will need to purchase the Certificate experience when you enroll in a course. You can try a Free Trial instead, or apply for Financial Aid. The course may offer 'Full Course, No Certificate' instead. This option lets you see all course materials, submit required assessments, and get a final grade. This also means that you will not be able to purchase a Certificate experience.
When you enroll in the course, you get access to all of the courses in the Specialization, and you earn a certificate when you complete the work. Your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile.
More questions
Financial aid available,