Switching Capacitor PWM DC-DC Voltage Regulator Module
Cao Wenjing1, Jin Ke1, Ming Xu2, F C Lee2
1. Nanjing University of Aeronautics & Astronautics Nanjing 210016 China 2. Center for Power Electronics Systems Virginia Polytechnic Institute and State University Blacksburg 24061 USA
Abstract:This paper proposes a novel switching capacitor PWM DC-DC voltage regulator module. The converter is a combination of a switching capacitor converter and a PWM converter, and it has the following advantages: ①Zero voltage switching of all the MOSFETs. ②Using an auto transformer self-driven method to save the driver loss and the synchronous rectifier (SR) body diode conduction loss. ③Its efficiency is not sensitive to leakage inductor, so that the discrete transformer can be used to save the cost. ④Single phase option makes it more flexible. A four-phase 700kHz 1.2V/130A output VRM prototype was built to verify the analysis.
曹文静, 金科, MingXu, F C Lee. 开关电容PWM DC-DC电压调节模块[J]. 电工技术学报, 2012, 27(10): 182-189.
Cao Wenjing, Jin Ke, Ming Xu, F C Lee. Switching Capacitor PWM DC-DC Voltage Regulator Module. Transactions of China Electrotechnical Society, 2012, 27(10): 182-189.
[1] Voltage regulator module and enterprise voltage regulator-down 11.0 design guidelines[Z]. Intel Corporation, 2006, 11.
[2] 陈为, 卢增艺, 王凯. 电压调节模块耦合电感性能分析与设计[J]. 电工技术学报, 2009, 24(1): 127-132.
[3] 刘学超, 张波, 丘东元, 等. 多相并联磁集成电压调整模块的电路建模研究[J]. 中国电机工程学报, 2006, 26(19): 145-150.
[4] 陈威, 吕征宇. 一种兆赫兹级频率范围多相谐振电压整流模块的新颖控制策略[J]. 中国电机工程学报, 2008, 28(27): 1-6.
[5] Zhou X, Zhang X, Liu J, et al. Investigation of candidate VRM topologies for future microprocessors[C]. IEEE Applied Power Electronics Conference, 1998: 145-150.
[6] Yao K, Xu M, Meng M, et al. Design considerations for VRM transient response based on the output impedance[J]. IEEE Transactions on Power Electronics, 2003, 18(6): 1270-1277.
[7] Xu M, Zhou J, Yao K, et al. Small signal modeling of a high bandwidth voltage regulator using coupled inductors[J]. IEEE Transactions on Power Electronics, 2007, 22(2): 399-406.
[8] Ren Y, Xu M, Zhou J, et al. Analytical loss model of power MOSFET[J]. IEEE Transactions on Power Electronics, 2006, 21(2): 310-319.
[9] Zhou J, Xu M, Sun J, et al. A self-driven soft-switching voltage regulator for future microprocessors[J]. IEEE Transactions on Power Electronics, 2005, 20(4): 806-814.
[10] Jin K, Sun Y, Xu M, et al. Integrated magnetic self-driven ZVS nonisolated full-bridge conveter[J]. IEEE Transactions on Industrial Electronics, 2010, 57(5): 1615-1623.
[11] Xu M, Sun J, Lee F C. Voltage divider and its application in the two-stage power architecture[C]. IEEE Applied Power Electronics Conference, 2006: 499-505.
[12] 丘东元, 张波, 郑春芳, 等. 谐振开关电容变换器新型PWM控制策略[J]. 中国电机工程学报, 2006, 26(2): 116-120.
[13] Ioinovici A. Switched-capacitor power electronics circuits[J]. IEEE Circuits System Magazine, 2001, 1(1): 37-42.
[14] 许峰, 徐殿国, 柳玉秀. 具有最优动态响应的PWM型DC-DC变换器非线性控制新策略[J]. 中国电机工程学报, 2003, 23(12): 133-139.
作者简介:曹文静 女, 1987年生, 硕士研究生, 研究方向为低压大电流直流变换器。金 科 男, 1978年生, 教授、博士生导师, 研究方向为新能源供电系统、高频直流变换器和电力电子系统集成。