Cousineau, M.; Monroy, M.; Lorenzi Pol, W.; Hureau, L.; Aulagnier, G.; Goyhenetche, P.; Rolland, E.; Flumian, D. Decentralized Phase Shedding with Low Power Mode for Multiphase Converter. Energies2021, 14, 6748.
Cousineau, M.; Monroy, M.; Lorenzi Pol, W.; Hureau, L.; Aulagnier, G.; Goyhenetche, P.; Rolland, E.; Flumian, D. Decentralized Phase Shedding with Low Power Mode for Multiphase Converter. Energies 2021, 14, 6748.
Cousineau, M.; Monroy, M.; Lorenzi Pol, W.; Hureau, L.; Aulagnier, G.; Goyhenetche, P.; Rolland, E.; Flumian, D. Decentralized Phase Shedding with Low Power Mode for Multiphase Converter. Energies2021, 14, 6748.
Cousineau, M.; Monroy, M.; Lorenzi Pol, W.; Hureau, L.; Aulagnier, G.; Goyhenetche, P.; Rolland, E.; Flumian, D. Decentralized Phase Shedding with Low Power Mode for Multiphase Converter. Energies 2021, 14, 6748.
Abstract
This article presents a decentralized phase-shedding technique for multiphase converters. The usual central digital controller is replaced by identical local controllers forming a daisy-chain structure. Phase-shedding decisions are taken locally based on a local inductor current monitoring and threshold crossing management. This control strategy allows to implement as many phases as desired in a modular manner. In order to handle specific events such as load current inrush or a start-up sequence and to guarantee optimal transient responses, additional functions are included into each local controllers. The inter-cell communication protocol is described, along with necessary design considerations of threshold and timing values. Finally, functional simulations are carried out on a 5-leg 12V/1.2V 60W multiphase converter, which validate the proposed decentralized phase-shedding strategy for a microcontroller power supply implementation.
Keywords
Multiphase converter; Phase-Shedding; Decentralized Control
Subject
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
