Interface circuit development and validation for hybrid piezoelectric-thermoelectric energy harvesters

Date

2016-12-31

Author

Külah, Haluk

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Wireless sensor networks (WSNs) are critical components of sustainable operations in every major industry. First stage of the WSN in the figure can potentially be fully supported by renewable energy sources. Use of non-traditional ambient energy sources such as low frequency vibrations and temperature differences in the environment in a set of emerging embedded and smart applications, some of which designated in recent Horizon 2020 documents.Our group, which consists of members of MEMS Center at METU Ankara and REDAR (Renewable Energy Design and Applications Research) group at METU NCC, has been working on energy harvesting MEMS components and interface circuits required to support self-powered embedded sensors. In the next phase of this collaborated research, more comprehensive solutions need to be delivered using hybrid interfaces to simultaneously take advantage of multiple energy harvesting modes with outmost efficiency. An effective hybrid harvester that will power-up many embedded applications can take advantage of vibration and thermal resources in parallel using piezoelectric and thermoelectric conversion respectively. This research focuses on:•Efficient (60-100%) piezoelectric (PZT) interface circuit development with 2.5 µW minimum input power,•Efficient (20-50%) thermoelectric (TE) interface circuit development with 0.25 V minimum input voltage,•Compact, hybrid interface circuit development using above components for harvesting 100s of µWatts simultaneously.

Subject Keywords

Baskı Devreler, İnce Film, Kalın Film ve Hibrid Tümleşik Devreler, Doğrudan Enerji Dönüşümü ve Enerji Depolaması, Elektronik Devreler

URI

https://hdl.handle.net/11511/62071

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Department of Electrical and Electronics Engineering, Project and Design

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Citation Formats

H. Külah, “Interface circuit development and validation for hybrid piezoelectric-thermoelectric energy harvesters,” 2016. Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/62071.