Journal
2020 THIRTY-FIFTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2020)
Volume -, Issue -, Pages 475-481Publisher
IEEE
DOI: 10.1109/apec39645.2020.9124384
Keywords
-
Ask authors/readers for more resources
Compared with conventional switched-capacitor (SC) converters with two operating phases, multi-phase SC converters can achieve the same conversion ratio with fewer capacitors and switches. This feature makes multi-phase SC converters an attractive candidate for applications with large conversion ratios. To further improve the performance by enabling soft-charging and soft-switching operations, SC converters can be transformed to resonant switched-capacitor (ReSC) converters with augmented inductor(s). This work presents an 8-to-1 multi-phase ReSC converter design that features the least-possible number of switches and capacitors for the achieved gain. Both theoretical analysis and experimental results from a practical implementation are provided to demonstrate the benefits of the multi-phase resonant approach. A 48-to-6 V converter prototype with 40 A output current for data center applications was built and tested. The prototype achieved 98.6% peak efficiency (98.0% including gate drive loss) and 1675 W/in(3) power density, achieving one of the best overall in-class performances.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available