实验科学与技术2011，Vol.9Issue(4)：18-21,4.
可修调高稳定性RC振荡器设计
Design of a Trimmable and High Stability RC Oscillator
李殉 1贵鹏 1刘颖力1
作者信息
- 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
- 折叠
摘要
Abstract
A unilateral sawtooth RC oscillator with trimmable technology which was widely used in switching mode power supply was proposed.Using the internal 5V low dropout regulator power supply,trimming resistor technology and with external resistor and capacitor determine the oscillator frequency,which significantly stabilize the discharging time of the circuit induced by process variation.The circuit was simulated with HSpice under all resistor corners within the voltage and temperature range from 4.9V to 5.1V and-55 oC to 125 oC,respectively.Results indicated that the maximum oscillator frequency variation was 2.8% under the worst case.Based on 1μm bipolar process,the oscillator was taped out and the test result indicate that the frequency deviation was only 1.8%关键词
RC振荡器/可修调/高稳定性/双极工艺Key words
RC oscillator/trimmable/high stability/bipolar process分类
信息技术与安全科学引用本文复制引用
李殉,贵鹏,刘颖力..可修调高稳定性RC振荡器设计[J].实验科学与技术,2011,9(4):18-21,4.
