TY - GEN
T1 - Energy harvesting and power-management for sensing skins in SHM applications
AU - Hu, Y.
AU - Huang, L.
AU - Rieutort-Louis, W.
AU - Sanz-Robinson, J.
AU - Wagner, S.
AU - Sturm, J. C.
AU - Verma, N.
PY - 2013
Y1 - 2013
N2 - Self-powered operation can substantially ease the deployment and adoption of SHM systems. In this work, thin-film power-management systems are presented, which achieve energy harvesting and wireless power delivery to sensing subsystems all using the same thin-film amorphous-silicon (a-Si) technology. This enables a future path to systems with low assembly complexity. Two thin-film inverter topologies for wireless power delivery are discussed: (1) a class-D switching power inverter; and (2) an LC-oscillator-based power inverter. Among these, the class-D power inverter achieves wireless power delivery of 120 µW at an efficiency of 22[%], while LC-oscillator-based power inverter achieves wireless power delivery of 22 mW at an efficiency of 31[%]. Though the power levels are adequate for some SHM systems being envisioned, the superior power level of the LC oscillator makes it relevant for a wide range of systems.
AB - Self-powered operation can substantially ease the deployment and adoption of SHM systems. In this work, thin-film power-management systems are presented, which achieve energy harvesting and wireless power delivery to sensing subsystems all using the same thin-film amorphous-silicon (a-Si) technology. This enables a future path to systems with low assembly complexity. Two thin-film inverter topologies for wireless power delivery are discussed: (1) a class-D switching power inverter; and (2) an LC-oscillator-based power inverter. Among these, the class-D power inverter achieves wireless power delivery of 120 µW at an efficiency of 22[%], while LC-oscillator-based power inverter achieves wireless power delivery of 22 mW at an efficiency of 31[%]. Though the power levels are adequate for some SHM systems being envisioned, the superior power level of the LC oscillator makes it relevant for a wide range of systems.
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M3 - Conference contribution
AN - SCOPUS:84945200711
T3 - Structural Health Monitoring 2013: A Roadmap to Intelligent Structures - Proceedings of the 9th International Workshop on Structural Health Monitoring, IWSHM 2013
SP - 2771
EP - 2778
BT - Structural Health Monitoring 2013
A2 - Chang, Fu-Kuo
PB - DEStech Publications
T2 - 9th International Workshop on Structural Health Monitoring: A Roadmap to Intelligent Structures, IWSHM 2013
Y2 - 10 September 2013 through 12 September 2013
ER -