Review of Charge Pump Topologies for Micro Energy Harvesting Systems | Science Publications

American Journal of Applied Sciences

Sawal Hamid Md. Ali¹  Md. Shabiul Islam¹  Michelle Lim Sern Mi¹  Jahariah Sampe¹ 

关键词: Charge Pump (CP);    Low Voltage (LV);    Energy Harvesting;   

DOI  :  10.3844/ajassp.2016.628.645

学科分类：自然科学（综合）

来源: Science Publications

【 摘 要 】

This paper reviews CMOS based charge pump topologies used within autonomous embedded micro-systems. These charge pump structures have evolved from its simplistic diode-tied, single-branches with major threshold drops to exponential type, dual-branches with sophisticated gate and substrate control for lower voltage operation. Published charge pumps are grouped based on architecture, operation principles and pump optimization techniques with their pros and cons compared and results contrasted. The various charge pump topologies and schemes used are considered based on pumping efficiency, power efficiency, charge transferability, circuit complexity, pumping capacitors, form factor and minimum supply voltages with an optimum load. This article concludes with an overview of suitable techniques and recommendations that will aid a designer in selecting the most suitable charge pump topology especially for low ambient micro energy harvesting applications.

【 授权许可】

Unknown