An Efficient On-Chip Switched-Capacitor-Based Power Converter for a Microscale Energy Transducer

An efficient on-chip inductor-less switching power converter for solar energy harvesting is presented. The new energy-efficient switching power converter improves the charge transfer capability as well as charge sharing time from the harvester to the load. We also present an analytical model to esti...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems. II, Express briefs Express briefs, 2016-03, Vol.63 (3), p.254-258
Main Authors: Mondal, Saroj, Paily, Roy
Format: Article
Language:English
Subjects:
Capacitors
charge pump
Charge pumps
Charge transfer
Circuit design
Circuits
CMOS
DC-DC converter
Energy harvesting
energy scavenging
Harvesters
high voltage generator
Logic gates
Mathematical model
photovoltaic cell
Power converters
Power generation
Strategy
Switching
Topology
Transistors
voltage multiplier
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Summary:An efficient on-chip inductor-less switching power converter for solar energy harvesting is presented. The new energy-efficient switching power converter improves the charge transfer capability as well as charge sharing time from the harvester to the load. We also present an analytical model to estimate the optimal parameters for maximizing the system efficiency. The proposed interface circuits have been designed using 0.18-μm CMOS technology node, and the circuit simulations demonstrate that the proposed strategy offers a system efficiency of 70% under three different light conditions.
ISSN:1549-7747
1558-3791
DOI:10.1109/TCSII.2015.2483159