Implementation of digital control for buck converter by means a single DSP

I. Shulman, B. Bishara, L. Katzir, J. Fainguelernt, Y. Beck, D. Medini

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper describes a step-by-step DSP based digital control design and implementation of a high frequency dc-dc converter. Starting with a dc-dc buck converter and a given set of performance specification, it discusses different control blocks, different control design approaches and highlights the significant differences in designing control in the digital domain compared to the analog approach. Two approaches to the digital control design are illustrated namely, the design by emulation and the direct digital design. These are first shown in MATLAB and then verified by experimental results. In this process the effects of sampling delay and the computation delay are also analyzed in MATLAB and then verified experimentally. Finally the assembly code listings implementing the designed controllers are provided in order to aid the users quickly validate these controllers using a similar DSP controlled dc-dc converter set up.

Original languageEnglish
Title of host publication2014 IEEE 28th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479959877
DOIs
StatePublished - 2014
Externally publishedYes
Event2014 28th IEEE Convention of Electrical and Electronics Engineers in Israel, IEEEI 2014 - Eilat, Israel
Duration: 3 Dec 20145 Dec 2014

Publication series

Name2014 IEEE 28th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2014

Conference

Conference2014 28th IEEE Convention of Electrical and Electronics Engineers in Israel, IEEEI 2014
Country/TerritoryIsrael
CityEilat
Period3/12/145/12/14

Keywords

  • Digital control
  • MATLAB
  • Switched mode converters

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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