Title
A 2.5-V, 160-μJ-output piezoelectric energy harvester and power management IC for batteryless wireless switch (BWS) applications
Abstract
A piezoelectric-based energy harvesting and power management IC that can supply a total energy of 160-μJ at 2.5V from a single button-pressing action to realize a batteryless wireless remote switch (BWS) is presented. The IC uses a 6:1 series-parallel switched-capacitor converter and a bias-flipping inductor to match the impedance, down-convert the voltage, and maximize the total energy harvested from a 300-mm2 PMN-PT disc. Also, a step-down buck regulator employs a variable on-time PFM control to keep the initial charging loss below 12-μJ without degrading load regulation at 2.5V. Using this IC fabricated in a 0.25-μm HV CMOS, a batteryless wireless switch that can successfully transmit a 4-byte-long message over a 10-m distance is demonstrated.
Year
DOI
Venue
2015
10.1109/VLSIC.2015.7231291
VLSIC
Field
DocType
ISBN
Power management,Capacitor,Computer science,Voltage,Energy harvesting,Inductor,CMOS,Electronic engineering,Load regulation,Buck converter,Electrical engineering
Conference
978-4-86348-502-0
Citations 
PageRank 
References 
5
0.79
1
Authors
5
Name
Order
Citations
PageRank
Joonseok Yang151.47
Minbok Lee2122.34
Myeong-Jae Park3425.77
Sung-Youb Jung451.81
Jaeha Kim538251.63