학술논문
Seamless Rotational Phase Shedding for Multiphase DC–DC Converters
Document Type
Periodical
Source
IEEE Transactions on Power Electronics IEEE Trans. Power Electron. Power Electronics, IEEE Transactions on. 39(5):4996-5001 May, 2024
Subject
Language
ISSN
0885-8993
1941-0107
1941-0107
Abstract
This letter proposes a seamless rotational phase shedding (PS) operating method designed for multiphase dc–dc converters. Utilizing a 15 kW/50 kHz three-phase interleaved synchronous boost converter as an example, the optimal activation of phases is determined by minimizing power losses. Through a comprehensive analysis of total inductor current sag and swell in both steady-state and dynamic rotational PS operation, the optimal pulsewidth modulation switching patterns are identified. Experimental results demonstrate that the proposed method outperforms traditional approaches, seamlessly achieving rotational PS while preserving interleaved among different activated phases.