Paper Info
Title
A 0.21-V minimum input, 73.6% maximum efficiency, fully integrated voltage boost converter with MPPT for low-voltage energy harvesters
Abstract
This paper proposes a fully integrated voltage boost converter with a maximum power point tracking (MPPT) circuit for ultra-low power energy harvesting. The converter is based on a conventional charge pump circuit and can deliver a wide range of load current by using nMOS and pMOS driver circuits for highly efficient switching operation. The MPPT circuit we propose dissipates nano-watt power to extract maximum power regardless of the harvester's power generation conditions and load current. The measurement results demonstrated that the circuit converted a 0.49-V input to a 1.46-V output with 73.6% power conversion efficiency when the output power was 348 μW. The circuit can operate at an extremely low input of 0.21 V.
Year
DOI
Venue
2015
10.1109/ESSCIRC.2014.6942070
European Solid State Circuits Conference
Keywords
Field
DocType
MOS integrated circuits,charge pump circuits,driver circuits,energy harvesting,low-power electronics,maximum power point trackers,MPPT circuit,charge pump circuit,harvester power generation conditions,integrated voltage boost converter,load current,maximum power point tracking,nMOS driver circuit,pMOS driver circuit,power 348 muW,power conversion efficiency,switching operation,ultralow power energy harvesting,voltage 0.21 V
Voltage converter,Computer science,Voltage optimisation,Maximum power point tracking,Electronic engineering,Voltage regulation,Buck converter,Constant power circuit,Dropout voltage,Voltage divider
Conference
ISSN
Citations 
PageRank 
1930-8833
4
0.55
References 
Authors
11
6
Name
Order
Citations
PageRank
Toshihiro Ozaki140.55
Tetsuya Hirose240.55
Takahiro Nagai340.55
Keishi Tsubaki473.07
Nobutaka Kuroki55712.88
Masahiro Numa68220.87