A single-inductor AC-DC piezoelectric energy-harvester/battery-charger IC converting ±(0.35 to 1.2V) to (2.7 to 4.5V)

Energy harvesting in microscale devices is important (because space constrains energy) and challenging (because rectifying small ac piezoelectric signals is lossy and difficult). The 1 mm 2 2 ¿m BiCMOS piezoelectric energy harvester-charger IC presented harnesses up to 30 ¿W from a PZT transducer�...

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Bibliographic Details
Main Authors: Dongwon Kwon, Rincon-Mora, G.A.
Format: Conference Proceeding
Language:English
Subjects:
Batteries
Damping
Delay
Hysteresis
Inductors
Rectifiers
Switches
Transducers
Vibrations
Voltage
Online Access:Request full text
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Summary:Energy harvesting in microscale devices is important (because space constrains energy) and challenging (because rectifying small ac piezoelectric signals is lossy and difficult). The 1 mm 2 2 ¿m BiCMOS piezoelectric energy harvester-charger IC presented harnesses up to 30 ¿W from a PZT transducer's ±0.35-to-1.2 V levels to charge 1.2-to-1.5 mAh Li Ions with 46-to-81% efficiency.
ISSN:0193-6530
2376-8606
DOI:10.1109/ISSCC.2010.5433867