Deadbeat Control for Single-Inductor Multiple-Output DC-DC Converter with Effectively Reduced Cross Regulation

Xinan Zhang, Benfei Wang, Xiaojun Tan, Hoay Beng Gooi, Herbert Ho Ching Iu, Tyrone Fernando

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

This article presents a deadbeat-based control approach for the single-inductor multiple-output (SIMO) dc-dc converter. The proposed approach contributes to effectively solve the cross-regulation problem by independently regulating different output voltages based on independent load currents. Unlike conventional model-based methods, which require the measurement of load currents, the proposed approach employs output current observers to replace current sensors. Furthermore, it obtains an excellent dynamic and steady-state voltage regulation performances. Details of the proposed controller and output current observer are discussed. For verifying the validity of the proposed approach, simulation and hardware experiments are conducted on a single-inductor dual-output (SIDO) buck converter platform. The corresponding results are analyzed and compared with the performances of the start-of-Art methods.

Original languageEnglish
Article number8886454
Pages (from-to)3372-3381
Number of pages10
JournalIEEE Journal of Emerging and Selected Topics in Power Electronics
Volume8
Issue number4
DOIs
Publication statusPublished - Dec 2020

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