Authors
Ratul Das, Hanh-Phuc Le
Publication date
2019/3/17
Conference
2019 IEEE Applied Power Electronics Conference and Exposition (APEC)
Pages
1997-2001
Publisher
IEEE
Description
This paper describes the topology, fundamental operations, and key characteristics of a Dual-Phase Multi-Inductor Hybrid (DP-MIH) Converter for Point of Load (POL) telecommunication and data center applications. The circuit topology employs a unique configuration of switched inductor and capacitor pairs to achieve complete soft charging and native voltage balancing of flying capacitors regardless of mismatches and variations in capacitor and inductor values. The converter topology and its operation are verified by a five-level DP-MIH converter prototype capable of delivering maximum load of 100A at 1V-5V regulated output voltages from a 48V input supply. It achieves 90.9% peak efficiency and 440 w/in 3 power density for 48V-to-1V conversion and 95.3% and 2200W/in 3 for a 48V-to-5V conversion.
Total citations
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