一种基于交错自举控制技术的全集成SCPC浮动电压驱动电路  

A Floating Voltage Driving Circuit Based on Interleaved Bootstrap Control Technology for Fully Integrated SCPC

作　　者：郑心易 罗萍[1,2] ZHENG Xinyi;LUO Ping(State Key Lab.of Elec.Thin Films and Integr.Dev.,Univ.of Ele.Sci.and Technol.of China,Chengdu 610054,P.R.China;Institute of Electronic and Information Engineering of UESTC in Guangdong,Dongguan,Guangdong 523808,P.R.China)

机构地区：[1]电子科技大学电子薄膜与集成器件国家重点实验室,成都610054 [2]电子科技大学广东电子信息工程研究院,广东东莞523808

出　　处：《微电子学》2023年第2期209-214,共6页Microelectronics

基　　金：广东省基础与应用基础研究基金资助项目(2021A1515011309)。

摘　　要：设计了一种适用于全集成开关电容功率转换器(SCPC)的浮动电压驱动电路。该电路采用交错自举控制技术,周期性地利用多相交错SCPC中的特定单元为其他单元提供自举驱动。该电路实现了全部功率开关的浮动电压驱动,并且适用于所有SCPC拓扑。相比于传统浮动电压驱动方案,该驱动电路的硬件开销与SCPC中的器件数目无关。提出的浮动电压驱动电路应用于一个8相可重构SCPC中,仿真结果证明了其功能的正确性。A floating voltage driver circuit was designed for fully integrated switched capacitor power converter(SCPC).The interleaved bootstrap control technique was used,which periodically utilized certain cells in the multiphase interleaved SCPC to provide bootstrap drive for other cells.The floating voltage drive for all power switches was implemented and was suitable for all SCPC topologies.Compared with the traditional scheme,the hardware overhead of the proposed floating voltage driving circuit was independent with the number of devices in the SCPC.It was applied in an 8-phase reconfigurable SCPC,and the simulation results proved the correctness of this design.

关 键 词：开关电容功率转换器 浮动电压驱动 功率集成电路 

分 类 号：TN433[电子电信—微电子学与固体电子学] TN624