Buck Regulator in Closed Loop Operation

This is lab 8 of 12 in the course

by Dr. Nicola Femia | University of Salerno, and Texas Instruments

In this lab, students analyze the closed loop operation of a buck regulator. Through hands-on activities, students will investigate the impact of an error amplifier on output voltage DC regulation, and on the capability of rejecting output voltage AC perturbations caused by load current noise.

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Details

LEARNING OBJECTIVES

<span style="tab-stops:.5in">Given a buck regulator and the characteristics of its L-C filter and error amplifier, students will calculate the DC operating point and the AC response to load perturbations, with specified units and accuracy, by applying the appropriate theoretical formulae.</span>
<span style="tab-stops:.5in">Given a buck regulator and the characteristics of its L-C filter and error amplifier, students will simulate its DC operation under different source voltage values, to determine the accuracy of theoretical model predictions, with specified units and accuracy, by comparing the appropriate sets of data and results</span>
Given a real buck regulator, a power supply and a dynamic load, students will measure the accuracy of the DC output voltage with respect to the desired nominal value, and the amplitude of output voltage AC perturbations caused by AC load current perturbations, with specified units and accuracy.

REQUIRED SKILLS

Basic proficiency using Multisim Live
Basic proficiency using ELVIS III Instruments
Basic proficiency in circuits and analog electronics

Requirements

NI ELVIS III

Engineering laboratory solution for project-based learning that combines instrumentation and embedded design with a web-driven experience, delivering a greater understanding of engineering fundamentals and system design. Learn more

DETAILED REQUIREMENTS

Required Software

Download Academic Software, Learn About Software Licensing

NI ELVIS III Soft Front Panel Support - Install Instructions
Measurements Live - Access
Multisim Live (Some circuits require premium access) - Access; Learn about Premium
TI Power Electronics Board Configuration Utility Download

Required Hardware

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NI ELVIS III - View User Manual & Specifications
TI Power Electronics Board for NI ELVIS III - View User Manual & Specifications

Resources

INSTRUCTOR RESOURCES

Instructor resources are available. Get access

OTHER RESOURCES

Download Configuration Utility for the TI Power Electronics Board