A 33V to 1V Ripple-Less Buck Converter with the Inverted AC Current Replica Circuit and Sub-0.5% Output Ripple for 5G Low Earth Orbit Application

Yi Hsiang Kao; Jie Lin Wu; Chih Cherng Liao; Hui Hsuan Chang; Wei Cheng Huang; Hsing Yen Tsai; Rong Bin Guo; Ke Horng Chen; Kuo Lin Zeng; Ying Hsi Lin; Shian Ru Lin; Tsung Yen Tsai

doi:10.1109/LSSC.2024.3410034

A 33V to 1V Ripple-Less Buck Converter with the Inverted AC Current Replica Circuit and Sub-0.5% Output Ripple for 5G Low Earth Orbit Application

Yi Hsiang Kao, Jie Lin Wu, Chih Cherng Liao, Hui Hsuan Chang, Wei Cheng Huang, Hsing Yen Tsai, Rong Bin Guo, Ke Horng Chen^*, Kuo Lin Zeng, Ying Hsi Lin, Shian Ru Lin, Tsung Yen Tsai

^*Corresponding author for this work

Department of Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The proposed ripple-less buck converter (RLBC) uses a two-phase topology with an inverted ac current replica (IACCR) circuit to reduce output voltage ripple to meet the error vector magnitude (EVM) requirement of 5G new radio (5G NR) low earth orbit (LEO) application. Assistance inductance (AI) circuit emulates inductor current to avoid using extra inductors. Ripple minimization (RM) circuit further reduces output ripple by synchronizing the switching moment of power MOSFETs. Therefore, the proposed RLBC achieves 5G NR LEO standards with an EVM of -28.85dB.

Original language	English
Pages (from-to)	183-186
Number of pages	4
Journal	IEEE Solid-State Circuits Letters
Volume	7
DOIs	https://doi.org/10.1109/LSSC.2024.3410034
State	Published - 2024

Keywords

5G new radio (5G NR)
buck converter
flying capacitor
low conversion ratio (CR)
low earth orbit (LEO)
small output ripple

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10.1109/LSSC.2024.3410034

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Kao, Y. H., Wu, J. L., Liao, C. C., Chang, H. H., Huang, W. C., Tsai, H. Y., Guo, R. B., Chen, K. H., Zeng, K. L., Lin, Y. H., Lin, S. R., & Tsai, T. Y. (2024). A 33V to 1V Ripple-Less Buck Converter with the Inverted AC Current Replica Circuit and Sub-0.5% Output Ripple for 5G Low Earth Orbit Application. IEEE Solid-State Circuits Letters, 7, 183-186. https://doi.org/10.1109/LSSC.2024.3410034

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title = "A 33V to 1V Ripple-Less Buck Converter with the Inverted AC Current Replica Circuit and Sub-0.5% Output Ripple for 5G Low Earth Orbit Application",

abstract = "The proposed ripple-less buck converter (RLBC) uses a two-phase topology with an inverted ac current replica (IACCR) circuit to reduce output voltage ripple to meet the error vector magnitude (EVM) requirement of 5G new radio (5G NR) low earth orbit (LEO) application. Assistance inductance (AI) circuit emulates inductor current to avoid using extra inductors. Ripple minimization (RM) circuit further reduces output ripple by synchronizing the switching moment of power MOSFETs. Therefore, the proposed RLBC achieves 5G NR LEO standards with an EVM of -28.85dB.",

keywords = "5G new radio (5G NR), buck converter, flying capacitor, low conversion ratio (CR), low earth orbit (LEO), small output ripple",

author = "Kao, {Yi Hsiang} and Wu, {Jie Lin} and Liao, {Chih Cherng} and Chang, {Hui Hsuan} and Huang, {Wei Cheng} and Tsai, {Hsing Yen} and Guo, {Rong Bin} and Chen, {Ke Horng} and Zeng, {Kuo Lin} and Lin, {Ying Hsi} and Lin, {Shian Ru} and Tsai, {Tsung Yen}",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.",

year = "2024",

doi = "10.1109/LSSC.2024.3410034",

language = "English",

volume = "7",

pages = "183--186",

journal = "IEEE Solid-State Circuits Letters",

issn = "2573-9603",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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T1 - A 33V to 1V Ripple-Less Buck Converter with the Inverted AC Current Replica Circuit and Sub-0.5% Output Ripple for 5G Low Earth Orbit Application

AU - Kao, Yi Hsiang

AU - Wu, Jie Lin

AU - Liao, Chih Cherng

AU - Chang, Hui Hsuan

AU - Huang, Wei Cheng

AU - Tsai, Hsing Yen

AU - Guo, Rong Bin

AU - Chen, Ke Horng

AU - Zeng, Kuo Lin

AU - Lin, Ying Hsi

AU - Lin, Shian Ru

AU - Tsai, Tsung Yen

PY - 2024

Y1 - 2024

N2 - The proposed ripple-less buck converter (RLBC) uses a two-phase topology with an inverted ac current replica (IACCR) circuit to reduce output voltage ripple to meet the error vector magnitude (EVM) requirement of 5G new radio (5G NR) low earth orbit (LEO) application. Assistance inductance (AI) circuit emulates inductor current to avoid using extra inductors. Ripple minimization (RM) circuit further reduces output ripple by synchronizing the switching moment of power MOSFETs. Therefore, the proposed RLBC achieves 5G NR LEO standards with an EVM of -28.85dB.

AB - The proposed ripple-less buck converter (RLBC) uses a two-phase topology with an inverted ac current replica (IACCR) circuit to reduce output voltage ripple to meet the error vector magnitude (EVM) requirement of 5G new radio (5G NR) low earth orbit (LEO) application. Assistance inductance (AI) circuit emulates inductor current to avoid using extra inductors. Ripple minimization (RM) circuit further reduces output ripple by synchronizing the switching moment of power MOSFETs. Therefore, the proposed RLBC achieves 5G NR LEO standards with an EVM of -28.85dB.

KW - 5G new radio (5G NR)

KW - buck converter

KW - flying capacitor

KW - low conversion ratio (CR)

KW - low earth orbit (LEO)

KW - small output ripple

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U2 - 10.1109/LSSC.2024.3410034

DO - 10.1109/LSSC.2024.3410034

M3 - Article

AN - SCOPUS:85195429870

SN - 2573-9603

VL - 7

SP - 183

EP - 186

JO - IEEE Solid-State Circuits Letters

JF - IEEE Solid-State Circuits Letters

ER -

A 33V to 1V Ripple-Less Buck Converter with the Inverted AC Current Replica Circuit and Sub-0.5% Output Ripple for 5G Low Earth Orbit Application

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Keywords

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