An LLC Resonant DC–DC Converter for Wide Output Voltage Range Battery Charging Applications
Abstract
In this paper, resonant tank design procedure and practical design considerations are presented for a high performance LLC multiresonant dc-dc converter in a two-stage smart battery charger for neighborhood electric vehicle applications. The multiresonant converter has been analyzed and its performance characteristics are presented. It eliminates both low- and high-frequency current ripple on the battery, thus maximizing battery life without penalizing the volume of the charger. Simulation and experimental results are presented for a prototype unit converting 390 V from the input dc link to an output voltage range of 48-72 V dc at 650 W. The prototype achieves a peak efficiency of 96%.
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The second stage of a two-stage on-board charger is a DC-DC converter meant for regulating the charging algorithm of the electric vehicle battery.
“The second stage, being a DC-DC converter, is meant for regulating the charging algorithm of the EV battery [28,51].”
From On-Board Chargers for Electric Vehicles: A Comprehensive Performance and Efficiency Review (2024) · cites this paper as [51]
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Hybrid PWM-Resonant Converter for Electric Vehicle On-Board Battery Chargers
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“The second stage, being a DC–DC converter, is meant for regulating the charging algorithm of the EV ba tt ery [28,51].”
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“The PFC part controls the link voltage, and the link capacitor is the primary energy storage which aids in reducing the output voltage ripple of the PFC converter [40], [41].”
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Single-Phase Isolated Bidirectional AC-DC Battery Charger for Electric Vehicle – Review
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- Authors
- Musavi, F., Craciun, M., Gautam, D. S., Eberle, W., & Dunford, W. G.
- Affiliations
- Delta-Q Technologies (Canada) (CA)
- University of British Columbia (CA)
- Venue
- IEEE Transactions on Power Electronics
- Published
- 2013-12
- Volume
- 28
- Issue
- 12
- Pages
- 5437-5445
- ISSN
- 0885-8993 (ISSN-L)
- 1941-0107
- OpenAlex
- W1969215641
- Cited by
- 498
- References
- 30
- Citations by year
- 2026: 18 · 2025: 41 · 2024: 36 · 2023: 49 · 2022: 43 · 2021: 42 · 2020: 54 · 2019: 43 · 2018: 42 · 2017: 32 · 2016: 30 · 2015: 36 · 2014: 29 · 2013: 3
- FWCI
- 19.60
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- IEEE Transactions on Power Electronics (publishedVersion)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced DC-DC Converters
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Wireless Power Transfer Systems
- Physical Sciences › Engineering › Mechanical Engineering › Induction Heating and Inverter Technology
- Keywords
- LLC resonant converter, battery charging, wide output voltage range, resonant tank design, neighborhood electric vehicles, current ripple reduction, battery life, high-efficiency power conversion
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