An energy-adaptive MPPT power management unit for micro-power vibration energy harvesting

被引：28

作者：

Yi, Jun ^{[1
]}

Su, Feng ^{[1
]}

Lam, Yat-Hei ^{[1
]}

Ki, Wing-Hung ^{[1
]}

Tsui, Chi-Ying ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Elect & Comp Engn, Integrated Power Elect Lab, Hong Kong, Hong Kong, Peoples R China

来源：

PROCEEDINGS OF 2008 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-10 | 2008年

关键词：

D O I：

10.1109/ISCAS.2008.4541981

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A batteryless power management unit (PMU) that manages harvested low-level vibration energy from a piezoelectric device for a wireless sensor node is presented. An energy-adaptive maximum power point tracidng (EA-MPPT) scheme is proposed that allows the PMU to activate different operation modes according to the available power level. The harvested energy is processed by an ac-dc voltage doubler followed by on-chip charge pumps with variable up/down conversion ratios for higher efficiency. Interleaving technique is employed for the high-power output to reduce both current and voltage ripples. The PMU is designed using a 0.35 mu m CMOS process, and simulation results are presented to demonstrate its functions.

引用

页码：2570 / 2573

页数：4

共 7 条

[1]

LARN YH, 2006, IEEE T CKTS SY 2 DEC, P1378

[2]

LU C, 2007, IEEE INT S LOW POW E, P316

[3] Adaptive piezoelectric energy harvesting circuit for wireless remote power supply [J].