About this course: Learners will design a DC-DC converter that powers USB-C devices (20 V at 3 A) from a dc input voltage source such as a lithium-ion battery pack or a desktop computer power bus. Aspects of the project will include: ● Design of converter power stage and magnetics. Requires mastery of courses 1, 2, and 5. ● Simulation to verify correct steady-state operation. Requires mastery of courses 1, 2 and 4. ● Design of converter control system. Requires mastery of courses 3 and 4. ● Simulation to verify correct control system operation. Requires mastery of courses 3 and 4. ● Preparation of milestone reports documenting the design and its performance The reports will be peer graded.
Who is this class for: This course is primarily aimed at professional electrical engineers or electrical engineering graduate students, who need to design or understand switching regulator systems.
Created by: University of Colorado Boulder
Taught by: Dr. Robert Erickson, Professor
Electrical, Computer, and Energy Engineering
Taught by: Dr. Dragan Maksimovic, Charles V. Schelke Endowed Professor
Electrical, Computer and Energy Engineering
Taught by: Dr. Khurram Afridi, Assistant Professor
Electrical, Computer and Energy Engineering
| Basic Info | Course 6 of 6 in the Power Electronics Specialization |
| Level | Intermediate |
| Commitment | 6 weeks of study, 6-10 hours/week |
| Language | English |
| How To Pass | Pass all graded assignments to complete the course. |
| User Ratings |
Syllabus
WEEK 1
Introduction and Power Stage Design
Select a converter circuit approach for the bidirectional dc-dc converter to interface a lithium-ion battery pack to a USB load. Begin the design of the power stage components and LTspice simulation.
4 videos, 3 readings
- Video: Introduction and Specifications
- Lecture: Introduction, Specifications and Project Materials
- Video: Milestones for Weeks 1-2
- Lecture: Milestone 1 Grading Rubrics
- Video: The LTspice Saturating Inductor Model
- Video: Capstone Components
- Lecture: Simulation files for Milestone 1
WEEK 2
Power Stage Design and Documentation
Finish the design of the power stage components and the converter power stage LTspice simulation. Document your steady-state converter design for submission of Milestone 1.
Graded: Power Stage Design
WEEK 3
Preliminary Controller Design
Develop an averaged model of your power converter. Select a control approach (voltage mode, peak current mode, or average current mode control), and begin the design of the control loop(s) to meet requirements on crossover frequency and maximum closed-loop output impedance. Begin development of LTspice averaged simulation of your controller design.
1 video, 2 readings
- Video: Milestones for Weeks 3-4
- Lecture: Milestone 2 Grading Rubrics
- Lecture: Simulation files for Milestone 2
WEEK 4
Preliminary Controller Design and Documentation
Complete development of an averaged model of your power converter, its control loop(s), and an LTspice averaged simulation. Document your control circuit design for submission to Milestone 2.
Graded: Preliminary Controller Design and Documentation
WEEK 5
Complete Design
Begin development of an LTspice switching model of your closed-loop converter system, to verify that your system meets load current transient requirements. Improve your design as necessary. Begin addition of current limiting to your circuit.
1 video, 2 readings
- Video: Milestone 3: Weeks 5-6
- Lecture: Milestone 3 Grading Rubrics
- Lecture: Simulation files for Milestone 3
WEEK 6
Complete Design and Documentation
Complete development of an LTspice switching model of your closed-loop converter system, and verify that your system meets load current transient requirements. Complete the addition of current limiting to your circuit, to prevent inductor saturation during transients. Demonstrate your final design, including: operation at the specified operating points, closed-loop response to a step change in load current, current limiting, inductor and capacitor size, and efficiency. Document the final design for submission to Milestone 3.
1 reading
- Lecture: Details: Special For-Credit Offering
Graded: Final Design Documentation and Tests
FAQs
How It Works
Travail en cours
Chaque cours fonctionne comme un manuel interactif en proposant des vidéos préenregistrées, des quiz et des projets.
Aide de la part de vos pairs
Connectez-vous à des milliers d'autres étudiants et débattez sur des idées, discutez le contenu du cours et obtenez de l'aide pour en maîtriser les concepts.
Certificats
Obtenez une reconnaissance officielle pour votre travail et partagez votre réussite avec vos amis, vos collègues et vos employeurs.
Creators
University of Colorado Boulder
CU-Boulder is a dynamic community of scholars and learners on one of the most spectacular college campuses in the country. As one of 34 U.S. public institutions in the prestigious Association of American Universities (AAU), we have a proud tradition of academic excellence, with five Nobel laureates and more than 50 members of prestigious academic academies.
Pricing
| Auditeur libre | Acheter le cours | |
|---|---|---|
| Accéder au contenu du cours | Available | Available |
| Accéder au contenu noté | Not available | Available |
| Recevoir une Note Finale | Not available | Available |
| Obtenir un Certificat de Cours partageable | Not available | Available |
Ratings and Reviews
Extremely useful course for power engineers.
Excellent Project!
Good design projects, but very difficult at some times
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very good practice of designing a dc/dc converter, you choose the topology, select components based on what you have learned. Some previous experience with PMIC would make you understand much better. Thanks for the UC Boulder team and whoever contributes in developing this course and provide help in discussion forum!