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ISSCC 2026Session 26 · COMPUTE POWER AND SUPPLY MODULATORSPower Management

A Multi-Phase Hybrid Converter with Q Samplers Enabling Simultaneous IL Auto-Balance and Arbitrary Phase Count

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📋 论文概要

该论文提出一种多相混合转换器,采用Split-TON控制实现VCF自动平衡和任意相数全相交错,并通过0V Q采样器实现电感电流自动平衡且功率密度损失最小。在6相操作下获得最低归一化下冲,峰值效率达91.5%,适用于现代计算芯片的高电流负载点供电。

💡 主要创新点

核心指标
峰值效率90.5% @1V输出,91.5% @1.8V输出
重要性
发表年份
ISSCC 2026

🏷 关键词

多相混合转换器Q采样器电感电流自动平衡任意相数Split-TON控制下冲

📄 原文摘要

*Equally Credited Authors (ECAs) Abstract The paper presents a multiple-phase hybrid converter with Q samplers. Split-TON control enables VCF auto-balance and arbitrary phase counts under all-phase interleaving, while 0V Q samplers support IL auto-balance with minimal reduction in power density. It achieves peak efficiencies of 90.5% and 91.5% at 1V and 1.8V VO. With 6-phase operation and ALLON control, the converter attains the lowest normalized undershoot. This method is extendable to other hybrid converters. Modern computing chips require high-current delivery from efficient point-of-load (PoL) converters. Multi-phase (MP) bucks [1], each phase comprising a half-bridge (HB) and an inductor (Fig. 26.3.1), are widely used. The phase count N should be flexibly scalable to meet the maximum load capability in the design specifications. During load transients, charging all inductors (“ALL-ON”) mitigates output voltage (VO) droop, while steady-state

👥 作者与机构

Jiacheng Yang*, Zihao Tang*, Rui P. Martins, Mo Huang

University of Macau, Macau, China

分类:Power Management · 年份:ISSCC 2026