Multistack Switched-Capacitor Architecture with Coupled Magnetics for 48V-to-1V VRM

被引：7

作者：

Wang, Ping ^{[1
]}

Zhou, Daniel ^{[1
]}

Giuliano, David ^{[2
]}

Chen, Minjie ^{[1
]}

Chen, Yenan ^{[3
,4
]}

机构：

[1] Princeton Univ, Princeton, NJ 08544 USA

[2] pSemi Corp, San Diego, CA USA

[3] ZJU Hangzhou Global Sci & Technol Innovat Ctr, Hangzhou, Peoples R China

[4] Zhejiang Univ, Hangzhou, Peoples R China

来源：

2022 IEEE 23RD WORKSHOP ON CONTROL AND MODELING FOR POWER ELECTRONICS (COMPEL 2022) | 2022年

关键词：

switched capacitor circuit; coupled inductor; multicell topology; point-of-load; voltage regulation module; INDUCTORS; MODELS;

D O I：

10.1109/COMPEL53829.2022.9829994

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper presents the design and analysis of a family of multistack switched-capacitor architecture and coupled magnetics for 48 V-to-1 V point-of-load voltage regulation modules (VRMs). The architecture uses multiple stages of unregulated switched-capacitor cells to generate multiple layers of cascaded terminals with reduced voltage levels. The reduced voltage levels are loaded by switched-mode power converters controlled as current sources to perform voltage regulation and soft charging. Switches of the switched-capacitor cells and the current source cells are merged to reduce the component count and improve the performance. The magnetic components in the current source cells are coupled and combined. The effectiveness of the topology family is verified by simulation and experimental results.

引用

页数：7

共 27 条

[1] Two-Stage 48-V VRM With Intermediate Bus Voltage Optimization for Data Centers [J].