空天预警研究学报2025，Vol.39Issue(4)：304-307,312,5.DOI:10.3969/j.issn.2097-180X.2025.04.015
一种高增益低输出纹波的电荷泵设计
A design of high-gain low-output ripple charge pump
臧海桦 1赵海 2戚祎 2倪屹1
作者信息
- 1. 江南大学集成电路学院,江苏 无锡 214122
- 2. 江苏珞珈聚芯集成电路设计有限公司,江苏 无锡 214122
- 折叠
摘要
Abstract
Aimed at the problems such as low efficiency and large ripple of the high-gain charge pump power supply in the existing micro-electromechanical systems(MEMS)acoustic sensors,a new-type charge pump struc-ture is proposed.This charge pump is entirely composed of low-voltage PMOS transistors,adopting a dual-branch voltage-boosting configuration,with a low-dropout linear regulator(LDO)supplying power to the charge pump.The output stage is connected to a sub-threshold area MOS resistor low-pass filter(SMR LPF),controlled by non-overlapping four-phase clock signals.Simulation results show that under a power supply voltage of 1.6 V to 3.6 V,the circuit can stably generate a high voltage of 21.050 V,and an output voltage ripple of 1.24 μV,with a pump effi-ciency of 89.96%.Actual measured pump voltage of the tape-out is up to 21.020 V.关键词
微机电系统/声学传感器/电荷泵/电压纹波/四相时钟Key words
MEMS/acoustic sensor/charge pump/voltage ripple/four-phase clock分类
信息技术与安全科学引用本文复制引用
臧海桦,赵海,戚祎,倪屹..一种高增益低输出纹波的电荷泵设计[J].空天预警研究学报,2025,39(4):304-307,312,5.
