Modeling and Control Design of DC/DC Converters

Description:

Dr. Fred C. Lee and Dr. Dushan Boroyevich teach this course. The course will engage engineers in a combined lecture/laboratory instructional format, providing hands-on experience in the DC/DC converter analysis, modeling, simulation, control design and frequency domain measurement techniques.

With individual step-by-step guidance in the lab, participants will learn through simulation and measurements how to solve design problems using current-injection control and voltage-mode control, and will see the impact of loop gain design on closed-loop performances such as stability margins, small-signal and large signal dynamics, output impedance and audio susceptibility. Attendees will gain a clear understanding of power converter control through exercises such as determining dc and ac characteristics of power stages.

DC and steady-state analysis of PWM converters
Modeling and analysis of PWM converters
Single-loop control for PWM converters
Peak current-mode control systems
Advanced current-mode control

Agenda:

Day One:
DC and steady-state analysis of PWM converters. Lab work: Familiarity with forward and flyback converter; DC characteristics, and PWM controller operation.
Day Two:
Small-Signal Analysis of PWM Converters. Lab work: Measurement of open-loop small-signal and transient characteristics of the PWM converters.
Day Three:
Signal-Loop Control for PWM Converters. Lab work: Design of single-loop compensator; Measurement of closed-loop small-signal, and transient characteristics.
Day Four:
Analysis of Peak Current-Mode Control Systems. Lab work: Design of current-mode control; Design of the voltage compensator with current-mode control; Measurement of closed-loop small-signal and transient characteristics.
Day Five:
Advance Application of Current-Mode Control including Average Current-Mode Control and Charge Control. Lab work: Design of SCM control and closed-loop measurements; Completion of the work from previous days.

Additional Information

Lectures will begin each day at 8 a.m.
On Day 5, instructor will wrap-up by mid-afternoon to allow departure for the airport.
Short course participants will receive a set of lecture notes and lab manual on Day One.
Continental breakfast will be served by 7:30 a.m. near the lecture room.
Afternoon refreshments will be served in the lab in Whittemore Hall.
Participants will be invited to join the instructors for dinner on Day One.

For further information, please contact:

Teresa Shaw
Phone: 540-231-4527
Fax: 540-231-6390
E-mail: tshaw@vt.edu