A GaN-Based Reconfigurable Series-Parallel Hybrid Converter Supporting 48/24/12V Input and 0.8-1.2V Output with 83.7/87.8/90.7% Peak Efficiency

Minxiang Gong; Hua Chen; Muya Chang; Jong Hyeok Yoon; Xin Zhang; Rinkle Jain; Arijit Raychowdhury

doi:10.1109/APEC43580.2023.10131253

A GaN-Based Reconfigurable Series-Parallel Hybrid Converter Supporting 48/24/12V Input and 0.8-1.2V Output with 83.7/87.8/90.7% Peak Efficiency

Minxiang Gong
, Hua Chen
, Muya Chang
, Jong Hyeok Yoon
, Xin Zhang
, Rinkle Jain
, Arijit Raychowdhury

Department of Electrical Engineering and Computer Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

5 Scopus citations

Abstract

This paper presents a Gallium Nitride (GaN) based Point of Load (POL) DC-DC converter with a reconfigurable series-parallel (SP) hybrid topology and a programmable control chip. Depending on the input voltage (VIN) and the output current (IOUT), the converter can be reconfigured to the series capacitor buck topology for improved efficiency. The control chip integrates a digital pulse-width-modulator (PWM), a switched-mode regulation loop, a dead-time (tDEAD) controller, high voltage floating level shifters, and gate drivers. In order to achieve wide range of operation, the switching frqeuency (fSW) and on-time ratio (tONR) can be manually programmed for optimizing zero-voltage-switching (ZVS) at different I0UI. The IC prototype is fabricated in TSMC 0.18 μm high voltage process. The converter achieves 83.7% peak efficiency and > 80% efficiency over 26X load range (0.3 - 8 A) at 48-to-1 V conversion.

Original language	English
Title of host publication	APEC 2023 - 38th Annual IEEE Applied Power Electronics Conference and Exposition
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	912-918
Number of pages	7
ISBN (Electronic)	9781665475396
DOIs	https://doi.org/10.1109/APEC43580.2023.10131253
State	Published - 2023
Event	38th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2023 - Orlando, United States Duration: 19 Mar 2023 → 23 Mar 2023

Publication series

Name	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume	2023-March

Conference

Conference	38th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2023
Country/Territory	United States
City	Orlando
Period	19/03/23 → 23/03/23

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

Keywords

DC-DC converters
GaN-based power converter
direct 48-to-1 V conversion
hybrid converters
reconfigurable converter

Access to Document

10.1109/APEC43580.2023.10131253

Cite this

Gong, M., Chen, H., Chang, M., Yoon, J. H., Zhang, X., Jain, R., & Raychowdhury, A. (2023). A GaN-Based Reconfigurable Series-Parallel Hybrid Converter Supporting 48/24/12V Input and 0.8-1.2V Output with 83.7/87.8/90.7% Peak Efficiency. In APEC 2023 - 38th Annual IEEE Applied Power Electronics Conference and Exposition (pp. 912-918). (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2023-March). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APEC43580.2023.10131253

Gong, Minxiang ; Chen, Hua ; Chang, Muya et al. / A GaN-Based Reconfigurable Series-Parallel Hybrid Converter Supporting 48/24/12V Input and 0.8-1.2V Output with 83.7/87.8/90.7% Peak Efficiency. APEC 2023 - 38th Annual IEEE Applied Power Electronics Conference and Exposition. Institute of Electrical and Electronics Engineers Inc., 2023. pp. 912-918 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).

@inproceedings{2d5fb6c3ff5d4344839b94682d141118,

title = "A GaN-Based Reconfigurable Series-Parallel Hybrid Converter Supporting 48/24/12V Input and 0.8-1.2V Output with 83.7/87.8/90.7\% Peak Efficiency",

abstract = "This paper presents a Gallium Nitride (GaN) based Point of Load (POL) DC-DC converter with a reconfigurable series-parallel (SP) hybrid topology and a programmable control chip. Depending on the input voltage (VIN) and the output current (IOUT), the converter can be reconfigured to the series capacitor buck topology for improved efficiency. The control chip integrates a digital pulse-width-modulator (PWM), a switched-mode regulation loop, a dead-time (tDEAD) controller, high voltage floating level shifters, and gate drivers. In order to achieve wide range of operation, the switching frqeuency (fSW) and on-time ratio (tONR) can be manually programmed for optimizing zero-voltage-switching (ZVS) at different I0UI. The IC prototype is fabricated in TSMC 0.18 μm high voltage process. The converter achieves 83.7\% peak efficiency and > 80\% efficiency over 26X load range (0.3 - 8 A) at 48-to-1 V conversion.",

keywords = "DC-DC converters, GaN-based power converter, direct 48-to-1 V conversion, hybrid converters, reconfigurable converter",

author = "Minxiang Gong and Hua Chen and Muya Chang and Yoon, \{Jong Hyeok\} and Xin Zhang and Rinkle Jain and Arijit Raychowdhury",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 38th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2023 ; Conference date: 19-03-2023 Through 23-03-2023",

year = "2023",

doi = "10.1109/APEC43580.2023.10131253",

language = "English",

series = "Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC",

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

pages = "912--918",

booktitle = "APEC 2023 - 38th Annual IEEE Applied Power Electronics Conference and Exposition",

}

Gong, M, Chen, H, Chang, M, Yoon, JH, Zhang, X, Jain, R & Raychowdhury, A 2023, A GaN-Based Reconfigurable Series-Parallel Hybrid Converter Supporting 48/24/12V Input and 0.8-1.2V Output with 83.7/87.8/90.7% Peak Efficiency. in APEC 2023 - 38th Annual IEEE Applied Power Electronics Conference and Exposition. Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, vol. 2023-March, Institute of Electrical and Electronics Engineers Inc., pp. 912-918, 38th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2023, Orlando, United States, 19/03/23. https://doi.org/10.1109/APEC43580.2023.10131253

A GaN-Based Reconfigurable Series-Parallel Hybrid Converter Supporting 48/24/12V Input and 0.8-1.2V Output with 83.7/87.8/90.7% Peak Efficiency. / Gong, Minxiang; Chen, Hua; Chang, Muya et al.
APEC 2023 - 38th Annual IEEE Applied Power Electronics Conference and Exposition. Institute of Electrical and Electronics Engineers Inc., 2023. p. 912-918 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2023-March).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - A GaN-Based Reconfigurable Series-Parallel Hybrid Converter Supporting 48/24/12V Input and 0.8-1.2V Output with 83.7/87.8/90.7% Peak Efficiency

AU - Gong, Minxiang

AU - Chen, Hua

AU - Chang, Muya

AU - Yoon, Jong Hyeok

AU - Zhang, Xin

AU - Jain, Rinkle

AU - Raychowdhury, Arijit

PY - 2023

Y1 - 2023

N2 - This paper presents a Gallium Nitride (GaN) based Point of Load (POL) DC-DC converter with a reconfigurable series-parallel (SP) hybrid topology and a programmable control chip. Depending on the input voltage (VIN) and the output current (IOUT), the converter can be reconfigured to the series capacitor buck topology for improved efficiency. The control chip integrates a digital pulse-width-modulator (PWM), a switched-mode regulation loop, a dead-time (tDEAD) controller, high voltage floating level shifters, and gate drivers. In order to achieve wide range of operation, the switching frqeuency (fSW) and on-time ratio (tONR) can be manually programmed for optimizing zero-voltage-switching (ZVS) at different I0UI. The IC prototype is fabricated in TSMC 0.18 μm high voltage process. The converter achieves 83.7% peak efficiency and > 80% efficiency over 26X load range (0.3 - 8 A) at 48-to-1 V conversion.

AB - This paper presents a Gallium Nitride (GaN) based Point of Load (POL) DC-DC converter with a reconfigurable series-parallel (SP) hybrid topology and a programmable control chip. Depending on the input voltage (VIN) and the output current (IOUT), the converter can be reconfigured to the series capacitor buck topology for improved efficiency. The control chip integrates a digital pulse-width-modulator (PWM), a switched-mode regulation loop, a dead-time (tDEAD) controller, high voltage floating level shifters, and gate drivers. In order to achieve wide range of operation, the switching frqeuency (fSW) and on-time ratio (tONR) can be manually programmed for optimizing zero-voltage-switching (ZVS) at different I0UI. The IC prototype is fabricated in TSMC 0.18 μm high voltage process. The converter achieves 83.7% peak efficiency and > 80% efficiency over 26X load range (0.3 - 8 A) at 48-to-1 V conversion.

KW - DC-DC converters

KW - GaN-based power converter

KW - direct 48-to-1 V conversion

KW - hybrid converters

KW - reconfigurable converter

UR - https://www.scopus.com/pages/publications/85162265350

U2 - 10.1109/APEC43580.2023.10131253

DO - 10.1109/APEC43580.2023.10131253

M3 - Conference contribution

AN - SCOPUS:85162265350

T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

SP - 912

EP - 918

BT - APEC 2023 - 38th Annual IEEE Applied Power Electronics Conference and Exposition

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 38th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2023

Y2 - 19 March 2023 through 23 March 2023

ER -

Gong M, Chen H, Chang M, Yoon JH, Zhang X, Jain R et al. A GaN-Based Reconfigurable Series-Parallel Hybrid Converter Supporting 48/24/12V Input and 0.8-1.2V Output with 83.7/87.8/90.7% Peak Efficiency. In APEC 2023 - 38th Annual IEEE Applied Power Electronics Conference and Exposition. Institute of Electrical and Electronics Engineers Inc. 2023. p. 912-918. (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). doi: 10.1109/APEC43580.2023.10131253

A GaN-Based Reconfigurable Series-Parallel Hybrid Converter Supporting 48/24/12V Input and 0.8-1.2V Output with 83.7/87.8/90.7% Peak Efficiency

Abstract

Publication series

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Bibliographical note

Keywords

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