Unified current-programmed digital controller for non-inverting buck-boost converter with optimal steady-state and transient conditions

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

1 Scopus citations

Abstract

This paper introduces a new current-programmed controller for non-inverting buck-boost converters. The controller facilitates tight voltage regulation and excellent transient convergence, all carried out through a simple CPM controller hardware. Steady-state operation for the full range of conversion ratios is supported with seamless transitions between modes and improved efficiency and ripple characteristics around unity conversion gain. In case of a load transient, an optimized boundary control scheme achieves near-optimal recovery, with programmable constrains for the voltage deviation and inductor current, covering the entire range of conversion ratios. The operation of the controller is experimentally verified on a 2-15V input to 3.3V output, non-inverting buck-boost converter, demonstrating significant improvement in steady-state around unity gain as well as fast convergence for load transients with programmable constraints for the output voltage deviation and inductor current.

Original languageEnglish
Title of host publication34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages199-206
Number of pages8
ISBN (Electronic)9781538683309
DOIs
StatePublished - 24 May 2019
Event34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 - Anaheim, United States
Duration: 17 Mar 201921 Mar 2019

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2019-March

Conference

Conference34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Country/TerritoryUnited States
CityAnaheim
Period17/03/1921/03/19

Keywords

  • Digital control
  • Efficient energy processing
  • Non-inverting buck-boost
  • State-space control

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Unified current-programmed digital controller for non-inverting buck-boost converter with optimal steady-state and transient conditions'. Together they form a unique fingerprint.

Cite this