A CMOS 0.8 /spl mu/m programmable charge pump for the output stage of an implantable pacemaker

A. Novo, A. Gerosa, A. Neviani, A. Mozzi, E. Zanoni
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引用次数: 1

Abstract

This work proposes a voltage multiplier suitable for a pacemaker pulse generator in a high voltage 0.8 /spl mu/m CMOS technology. The proposed circuit topology can handle the relatively high voltages required to stimulate the heart, while still being able to operate from an almost exhausted pacemaker battery. The circuit can operate with a supply voltage from 2.8 V to 2 V, while the maximum output voltage is about three times the power supply. Fine programmability of the output voltage has been achieved, thus allowing the choice of the optimum trade-off between stimulation efficacy and battery longevity. Moreover the proposed solution takes care of minimizing the parasitic coupling and disturbances between the charge pump and other blocks in the system.
一种用于植入式起搏器输出级的CMOS 0.8 /spl mu/m可编程电荷泵
本文提出了一种适用于起搏器脉冲发生器的高压0.8 /spl mu/m CMOS技术的电压乘法器。所提出的电路拓扑可以处理刺激心脏所需的相对高电压,同时仍然能够从几乎耗尽的起搏器电池中运行。该电路可以在2.8 V ~ 2v的供电电压范围内工作,而最大输出电压约为供电电压的3倍。输出电压的精细可编程性已经实现,从而允许在刺激效率和电池寿命之间选择最佳权衡。此外,所提出的解决方案还考虑到最小化电荷泵与系统中其他模块之间的寄生耦合和干扰。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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