A Switched-Capacitor Voltage Regulator for Ultra-Low Power Energy Harvesting Systems

被引：0
|
作者：
Salomaa, Jarno [1 ]
Pulkkinen, Mika [1 ]
Halonen, Kari [1 ]
机构：
[1] Aalto Univ, Sch Elect Engn, Dept Micro & Nanosci, SMARAD 2, Espoo, Finland
来源：
2014 IEEE 57TH INTERNATIONAL MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS (MWSCAS) | 2014年
关键词：
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, an SC voltage doubler-based voltage regulator for ultra-low power energy harvesting applications is presented. It produces a stable 1.2-V power supply, using inputs from 0.63 V to 1.8 V. External compensation and on-chip output capacitor ensure good performance even with zero load current and any load capacitance. The regulator tolerates arbitrary input ramp-ups, and is immune to blackout and brownout. The regulator ASIC is implemented in a 0.18 mu m CMOS process. The measured regulator peak power and current efficiency are 63 % (ideal: 80 %) and 49 % (50 %), respectively. The performance has been characterized with load currents from zero to 100 mu A.
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页码：45 / 48
页数：4
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