A Two-Stage Universal Input Charger With Wide Output Voltage Range
Name
09051996.pdf
Description
Published version
Size
5.34 MB
Format
Adobe PDF
Checksum (MD5)
a5d7aebaa61332f28b7038a60fd4585b
Author(s)
Ranjram, Mike Kavian
Zhang, Cheng
Perreault, David J
Date Issued
March 2020
Journal
IEEE Open Journal of Power Electronics
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Ranjram, Mike K. et al. "A Two-Stage Universal Input Charger With Wide Output Voltage Range." IEEE Open Journal of Power Electronics 1 (March 2020): 88 - 102.
Version
Final published version
Abstract
This article presents the design of a two-stage 50 W portable charger architecture with universal ac input and 5 V/25 W, 9 V/45 W, 12 V/50 W output. A 98.5% efficient valley-switched boost converter operating at 0.5-2 MHz enables a 59% reduction in buffer capacitor volume compared to an example electrolytic capacitor while a stacked-bridge LLC converter with a Variable-Inverter-Rectifier-Transformer (VIRT) offers greater than 96% efficiency across the wide output voltage range. The design demonstrates the potential and trade-offs of a two-stage architecture at this operating power and illustrates the benefits of the utilized power stage topologies in achieving both small size and high efficiency over wide input- and output voltage ranges.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1109/ojpel.2020.2983382
