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Dynamic Loop Analysis for Modular Masterless Multi-Phase DC-DC Converters

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3 Author(s)
Yang Zhang ; Dept. of Electr. Eng., Colorado Univ., Boulder, CO ; Regan Zane ; Dragan Maksimovi

Closed loop system modeling for the modular masterless multiphase architecture with paralleled voltage and current sharing regulation loops is presented in this paper. The parallel structure allows both loops to have high bandwidth. Modeling results of such systems show that the voltage loop and current loop can be designed independently assuming identical power stages in each phase. The effects of mismatch on the closed loop system dynamics are then studied to assure performance and stability. A design example with simulation and experimental results is presented for a modular masterless 2-phase converter demonstrating fast response of both voltage and current loops

Published in:

2006 IEEE Workshops on Computers in Power Electronics

Date of Conference:

16-19 July 2006