Switching Regulator Based on a Non-Inverting Step-Down/Up DC–DC Converter for Lithium-Ion Battery Applications

A regulator based on a converter with step-down/up characteristics is discussed in this paper, which is suitable for processing energy from a lithium-ion battery pack, where the voltage fluctuates from above or below the nominal value. However, this regulator can also be used for applications such a...

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Main Authors: Juan Antonio Villanueva-Loredo, Ma Guadalupe Ortiz-Lopez, Jesus Leyva-Ramos, Luis Humberto Diaz-Saldierna
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/14/6/1144
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author Juan Antonio Villanueva-Loredo
Ma Guadalupe Ortiz-Lopez
Jesus Leyva-Ramos
Luis Humberto Diaz-Saldierna
author_facet Juan Antonio Villanueva-Loredo
Ma Guadalupe Ortiz-Lopez
Jesus Leyva-Ramos
Luis Humberto Diaz-Saldierna
author_sort Juan Antonio Villanueva-Loredo
collection DOAJ
description A regulator based on a converter with step-down/up characteristics is discussed in this paper, which is suitable for processing energy from a lithium-ion battery pack, where the voltage fluctuates from above or below the nominal value. However, this regulator can also be used for applications such as unregulated line rectifiers and renewable energy sources, among others. The converter consists of a non-cascaded interconnection of boost and buck–boost converters such that part of the input energy is transferred directly to the output without reprocessing. Furthermore, it has a non-pulsating input current and a non-inverting output voltage, making it easier to feed the power to other devices. For control purposes, non-linear and linear converter models are derived. The transfer functions of the linear model are used to implement the regulator using a current-mode control scheme. Finally, experimental results for a nominal output voltage of 48 V at 500 W are obtained for the converter in open-loop and closed-loop tests.
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spelling doaj.art-c02c8305a43d4902a323d4aa0b9adeee2023-11-18T11:39:01ZengMDPI AGMicromachines2072-666X2023-05-01146114410.3390/mi14061144Switching Regulator Based on a Non-Inverting Step-Down/Up DC–DC Converter for Lithium-Ion Battery ApplicationsJuan Antonio Villanueva-Loredo0Ma Guadalupe Ortiz-Lopez1Jesus Leyva-Ramos2Luis Humberto Diaz-Saldierna3Control and Dynamical Systems Division, The Institute for Scientific and Technological Research of San Luis Potosi (IPICYT), Camino a la Presa de San Jose 2055, San Luis Potosi 78216, MexicoITMA Department, Universidad Politecnica de San Luis Potosi, Urbano Villalón 500, Col. La Ladrillera, San Luis Potosi 78369, MexicoControl and Dynamical Systems Division, The Institute for Scientific and Technological Research of San Luis Potosi (IPICYT), Camino a la Presa de San Jose 2055, San Luis Potosi 78216, MexicoControl and Dynamical Systems Division, The Institute for Scientific and Technological Research of San Luis Potosi (IPICYT), Camino a la Presa de San Jose 2055, San Luis Potosi 78216, MexicoA regulator based on a converter with step-down/up characteristics is discussed in this paper, which is suitable for processing energy from a lithium-ion battery pack, where the voltage fluctuates from above or below the nominal value. However, this regulator can also be used for applications such as unregulated line rectifiers and renewable energy sources, among others. The converter consists of a non-cascaded interconnection of boost and buck–boost converters such that part of the input energy is transferred directly to the output without reprocessing. Furthermore, it has a non-pulsating input current and a non-inverting output voltage, making it easier to feed the power to other devices. For control purposes, non-linear and linear converter models are derived. The transfer functions of the linear model are used to implement the regulator using a current-mode control scheme. Finally, experimental results for a nominal output voltage of 48 V at 500 W are obtained for the converter in open-loop and closed-loop tests.https://www.mdpi.com/2072-666X/14/6/1144step-down/up converterswitching regulatorloop-shaping controllithium-ion batteries
spellingShingle Juan Antonio Villanueva-Loredo
Ma Guadalupe Ortiz-Lopez
Jesus Leyva-Ramos
Luis Humberto Diaz-Saldierna
Switching Regulator Based on a Non-Inverting Step-Down/Up DC–DC Converter for Lithium-Ion Battery Applications
Micromachines
step-down/up converter
switching regulator
loop-shaping control
lithium-ion batteries
title Switching Regulator Based on a Non-Inverting Step-Down/Up DC–DC Converter for Lithium-Ion Battery Applications
title_full Switching Regulator Based on a Non-Inverting Step-Down/Up DC–DC Converter for Lithium-Ion Battery Applications
title_fullStr Switching Regulator Based on a Non-Inverting Step-Down/Up DC–DC Converter for Lithium-Ion Battery Applications
title_full_unstemmed Switching Regulator Based on a Non-Inverting Step-Down/Up DC–DC Converter for Lithium-Ion Battery Applications
title_short Switching Regulator Based on a Non-Inverting Step-Down/Up DC–DC Converter for Lithium-Ion Battery Applications
title_sort switching regulator based on a non inverting step down up dc dc converter for lithium ion battery applications
topic step-down/up converter
switching regulator
loop-shaping control
lithium-ion batteries
url https://www.mdpi.com/2072-666X/14/6/1144
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