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525.725 - Power Electronics Course Homepage

Instructor Information

Deanna Temkin

Work Phone: (443) 778-7519
Home Phone: (240) 228-7519

Geoff Marcus

Work Phone: (443) 778-0379
Home Phone: (410) 363-4864

Course Information

Course Description

This course covers the design and analysis of DC to DC switchingconverters. Topics include topology selection for variousapplications, steady state operation including continuous versesdiscontinuous operation, fundamentals of control loop design including both voltage mode and current mode control, fundamentals of magnetic design including how to minimize losses, input and output filterdesign, pulse-width modulation chip selection, diode and transistorpart selection and the associated effects of part non-idealities on the converter performance, and modeling of the converter. The complete process of converter design andimplementation is presented including requirement specification andtesting verification needed to evaluate the converter performance such as efficiency, regulation, line rejection, EMI/EMC measurements, and stability measurements. Two labs which will give the student hands-on experience with design and testing of a typical DC to DC converter are part of the course.

Prerequisites

525.424 Analog Electronic Circuit Design I or equivalent

Course Goal

To develop a sufficiently detailed understanding of the analysis and design of DC/DC converters that students can effectively design and/or specify converters for their own applications.

Course Objectives

  • To be able to perform steady state analysis of the major DC/DC converter toplogies including understanding of the voltage and current waveforms at each of the critical nodes.

  • To be able to accurately model the major DC/DC converter topologies, identify loss mechanisms, and predict performance metrics such as efficiency, etc.

  • To be able to analyze and design magnetics (inductors and transformers) for DC/DC converter appications including understanding the complex interactions between loss mechanisms, saturation, size and weight, inductance, geometry, etc.

  • To be able to analyze dynamic performance of DC/DC converters and to design effective control loops that optimize frequency response, transient performance, and stability.

When This Course is Typically Offered

This course is typically offered at the Dorsey Center on Monday evenings from 4:30-7:10 during the Spring semester.

Syllabus

Topics Covered

  • Steady State Analysis (Continuous Mode)
  • Modeling & Losses; Discontinuous Mode Operation
  • Magnetics: Part I
  • Converter Circuits; Transformer Isolation
  • Semiconductor Switches; Switching Loss
  • Lab #1: Steady State Operation
  • Mid-Term Exam
  • Magnetics: Part II
  • Requirements & Verification; Design Examples
  • Control Loop Design: Part I
  • Control Loop Design: Part II
  • Lab #2: Dynamic Performance
  • EMI and Filter Design
  • Final Exam

Student Assessment Criteria

Homework & Labs 50%
Mid-Term Exam 25%
Final Exam 25%

10% penalty per week for late homework and lab report submissions.

Textbooks

Textbook information for this course is available online through the MBS Direct Virtual Bookstore.

Course Notes

There are no notes for this course.

Term Specific Course Website

http://webct.jhu.edu/SCRIPT/en525725_91_sp07/scripts/serve_home

(Last Modified: 07-22-2008 at 11:07:57 AM)