JSSC 2024第3期Other

A 9-V-Tolerant Stacked-Switched-Capacitor Stimulation System With Level-Adaptive

提出一种无需外部高压电源的9V耐压堆叠开关电容刺激系统，采用自适应开关控制实现高效刺激。

71.4%刺激效率（充电效率72.6%，放电效率99.9%），1μF电容0-4V充电，残余电压抑制至±30mV

堆叠开关电容高压耐受自适应开关控制刺激效率电荷平衡

▸无需外部高压电源或高压转换级即可提供高达9V的刺激

▸采用自适应开关控制，仅使用低压晶体管实现高压耐受

▸采用刺激同步电荷平衡方法，快速实现电荷平衡

Abstract

This article proposes a stacked-switched-capacitor stimulation (SSCS) system that can provide up to 9-V stim- ulation without using an external high-voltage (HV) supply or HV conversion stages to supply the stimulator. With the level-adaptive switch control, SSCS can be HV tolerant using only low-voltage (LV) transistors. In addition, SSCS achieves high stimulation efficiency up to 71.4%, which includes charging and discharging efficiencies of 72.6% and 99.9%, respectively, to charge 1- µF capac