集成电路与嵌入式系统2025，Vol.25Issue(2)：82-87,6.DOI:10.20193/j.ices2097-4191.2024.0060
一种输出电压可控的负电荷泵电路设计
Negative charge pump circuit design with controllable output voltage
摘要
Abstract
To address the problem of non-adjustable output voltage in the charge pump,a charge pump circuit with controllable output voltage is designed.This circuit is composed of a high-frequency oscillation circuit,a negative voltage generating circuit,a reference cir-cuit and a feedback module.Compared with traditional charge pumps,it exhibits greater flexibility in output voltage and a smaller out-put voltage ripple.The overall circuit is based on Dongbu HiTek 0.18 μm CMOS process.The simulation results show that with an in-put current of 100 μA,the output voltage ripple is within 3 mV at room temperature.Over the range from-40 ℃ to 125 ℃,the process angle output ripple is within 5 mV.The charge pump circuit operates stably at the output voltage of-3～0 V,and it has been applied to the rail-to-rail operational amplifier projects.关键词
电荷泵/比较器/振荡器/电荷共享/数字修调技术Key words
charge pumps/comparators/oscillator/charge sharing/digital trimming technology分类
信息技术与安全科学引用本文复制引用
李敬有,王梦梦,都文和,韩波,宋昊洋..一种输出电压可控的负电荷泵电路设计[J].集成电路与嵌入式系统,2025,25(2):82-87,6.基金项目
国家自然科学基金面上项目(42271409) （42271409）
黑龙江省教育厅基本科研业务专项(145209313). （145209313）
