A self-powered integrated interface circuit for low power piezoelectric energy harvesters

Date

2013-12-18

Author

Chamanian, S.
Zorlu, O.
Külah, Haluk
Muhtaroglu, A.

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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This paper presents a CMOS integrated interface circuit for piezoelectric energy harvesters (PEH). A fully self-powered circuit, based on Synchronous Electric Charge extraction (SECE) technique, is implemented for non-resonant piezoelectric harvesters generating low power, in 10s to 100s mu W range. The circuit is realized in standard 180 nm UMC CMOS technology. A switch control circuit is designed and optimized to extract maximum power independently from excitation changes of the PEH. The total power loss of the switch control circuit is reduced to 3.6 mu W. The simulations with an output voltage range of 1.1 to 4 V show maximum power conversion efficiency of 83% (at 4 V) for a higher power PEH module, and maximum power conversion efficiency of 75% (at 2.6 V) for a lower power PEH module.

Subject Keywords

Interface circuit, Piezoelectric energy harvester, Self-powered circuit, Synchronous electric charge extraction

URI

https://hdl.handle.net/11511/53705

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

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Citation Formats

S. Chamanian, O. Zorlu, H. Külah, and A. Muhtaroglu, “A self-powered integrated interface circuit for low power piezoelectric energy harvesters,” 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/53705.