Charge Sharing LAU Switched-Capacitor Converter with Reducing Power Loss

被引：0

作者：

Choi, Jaesoon ^{[1
]}

Lau, Kin Keung ^{[2
]}

Choi, Seokmun ^{[1
]}

Baek, Inkuk ^{[1
]}

机构：

[1] Silicon Mitus Inc, Syst Engn, Seongnam, South Korea

[2] Empower Semicond, Design Engn, Milpitas, CA USA

来源：

2022 IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, APEC | 2022年

关键词：

Switched-Capacitor Converter; 4; to; 1; Charge sharing;

D O I：

10.1109/APEC43599.2022.9773691

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A patent pending novel 4-to-1 Lau switchedcapacitor converter (SCC) has been demonstrated to have high efficiency in previous literature. This paper presents the application of charge sharing to LAU SCC with reducing switching power loss. It has been shown how a charge sharing technique effectively decreases the switching power losses. The validity of charge sharing technique is verified through 16-to-4V SCC prototypes for smart phone application using discrete switches. The conventional LAU SCC shows 95.83% peak efficiency (including gate driving loss) and 94.14% at 12A output current. The LAU SCC with charge sharing circuit achieves 96.20% peak efficiency (including gate driving loss) and 94.29% at 12A output current. The efficiency is superior to the prior art.

引用

页码：2070 / 2074

页数：5

共 13 条

[1] Charge Reusing in Switched-Capacitor Voltage Multipliers with Reduced Dynamic Losses [J].