Stacking Isolated SC Cores for High-Voltage Wide Input Range Monolithic DC-DC Conversion

被引：10

作者：

De Pelecijn, Elly ^{[1
]}

Steyaert, Michiel S. J. ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Dept Elect Engineer, B-3001 Leuven, Belgium

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 2020年 / 55卷 / 10期

关键词：

DC-DC converter; fully integrated; high voltage (HV); isolated converter; multi-ratio; stacking; switched capacitor (SC);

D O I：

10.1109/JSSC.2020.3005795

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 fully integrated DC-DC converter that uses isolated switched-capacitor (SC) cores in a stacked way is presented. The converter can transform a wide input voltage range from 7.5 up to 42 V by the multiple available voltage conversion ratios (VCRs), which are realized through reconfiguration of the stackable cores. In addition, stacking simplifies the design to the low-voltage isolated SC core. Level shifters are included to fulfill the high-voltage interfaces, while bulk biasing circuits ensure the correct driving of the switches in the cores. As such, the power converter is implemented in a 0.35-mu m CMOS technology and produces a stable 3-V output with less than 5% voltage ripple for a peak output power of 2.1 mW.

引用

页码：2639 / 2648

页数：10

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