半导体学报2008，Vol.29Issue(2)：275-280,6.
一种适用于DC-DC变换器的新型混合式数字脉宽调制器
A Novel Hybrid DPWM for Digital DC-DC Converters
陈华 1李舜 1牛祺 1周锋1
作者信息
- 1. 复旦大学专用集成电路与系统国家重点实验室,上海,201203
- 折叠
摘要
Abstract
We present a new hybrid digital pulse-width modulator (DPWM) for digital DC-DC converters that employs a ring-oscillator/counter structure. Based on a temperature/process compensation technique and a novel digital controller,the proposed DPWM can not only offer temperature/process-independent pulse widths,but also operate at a much higher clock frequency than the existing delay-line/counter DPWM structure. Post-simulation results show that with our DPWM,the system clock frequency reaches 156.9MHz while the worst variation, in a temperature range of 0 to 100℃ under all process corners, is only ± 9.4 %.关键词
数字脉宽调制器/环路振荡器/DC-DC变换器Key words
DPWM/ring oscillator/DC-DC converter分类
信息技术与安全科学引用本文复制引用
陈华,李舜,牛祺,周锋..一种适用于DC-DC变换器的新型混合式数字脉宽调制器[J].半导体学报,2008,29(2):275-280,6.
