Analysis of High-Power Switched-Capacitor Converter Regulation Based on Charge-Balance Transient-Calculation Method

被引：43

作者：

Wu, Bin ^{[1
]}

Li, Shouxiang ^{[1
]}

Smedley, Keyue Ma ^{[1
,2
]}

Singer, Sigmond ^{[3
]}

机构：

[1] Univ Calif Irvine, Dept Elect Engn & Comp Sci, Irvine, CA 92617 USA

[2] One Cycle Control Inc, Irvine, CA 92618 USA

[3] Tel Aviv Univ, Sch Elect Engn, IL-69978 Tel Aviv, Israel

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2016年 / 31卷 / 05期

关键词：

CT modeling; peak current stress; switched capacitor (SC); two-switch boosting switched-capacitor converter (TBSC); voltage regulation; DC-DC CONVERTER; BOOST CONVERTER; HIGH-EFFICIENCY; DESIGN;

D O I：

10.1109/TPEL.2015.2466095

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：

Switched-capacitor (SC) converters were initially introduced for low-power applications and monolithic integration. In recent years, SC converter has found high-power applications. However, voltage regulation remains an issue. This paper addresses regulation challenges for high-power SC converters, based on charge-balance transient-calculation (CT) modeling method and peak current stress estimation. With the help of CT model, due to its accuracy and comprehensive relationship, circuit and control parameters' impacts on regulation become straightforward and concerns on components stresses can be addressed quantitatively. The suitability of CT method for regulation analysis is confirmed by comparison with traditional modeling methods. The CT method is used in a 1-kW 3X two-switch boosting switched-capacitor converter (TBSC) circuit for steady-state analysis and current stress estimation. The soft rising input current and nature interleaving properties of 3X TBSC make it well suited for high-power application. Finally, the small-signal model of the 3X TBSC is developed and a closed-loop operation is achieved under 1 kW power rating.

引用

页码：3482 / 3494

页数：13

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