Design and implementation of hybrid DC-DC converter: A Review

Chang, Teck Seong and Ramiah, Harikrishnan and Jiang, Yang and Lim, Chee Cheow and Lai, Nai Shyan and Mak, Pui-In and Martins, Rui P. (2023) Design and implementation of hybrid DC-DC converter: A Review. IEEE Access, 11. pp. 30498-30514. ISSN 2169-3536, DOI

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The advancement in Power Management Integrated Circuit (PMIC) has driven the dc-dc conversion technology into a System-on-Chip (SoC) solutions, leveraging CMOS technology scaling from 180nm to 22nm and on-chip passive element integration. Concurrently, as the applications demand smaller form factor solution towards device portability with optimized power qualities, switched-capacitor-inductor hybrid architectures with fully-integrated passives have become a popular choice for a compact and high efficiency converter solution, in contrast to bulky and discrete component based alternatives. This article reviews the latest advancements in hybrid dc-dc topologies, specifically for low-power applications to address the downsides such as charge sharing loss, high current ripple, limited conversion ratio, low-power density, and efficiency. An overview of capacitor and inductor technology is discussed in terms of on-chip parasitic losses, and miniaturization. A comprehensive comparison in the state-of-the-art hybrid dc-dc converter work is tabulated with power density and efficiency as the primary performance metrics, highlighting their operability in low-power applications. Moreover, a discussion is included with quantified benchmarks to justify the viability of converters, along with the future recommendation of realizing ultra-high switching frequency for smaller footprint inductor and design approach to resolve the current tradeoff bottlenecks.

Item Type: Article
Funders: Research University (RU) Grant-Faculty Program (GPF056B-2020)
Uncontrolled Keywords: Power management integrated circuit (PMIC); system-on-chip (SoC); hybrid DC-DC converters; power efficiency; power density; transient response
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering > Department of Electrical Engineering
Depositing User: Ms Zaharah Ramly
Date Deposited: 24 Nov 2023 00:48
Last Modified: 24 Nov 2023 00:48

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