Self‑powered piezoelectric energy harvesting with ultra‑low power consumption for low‑amplitude ambient vibrations

Osama Younas; Ping Li; Yumei Wen

Self‑powered piezoelectric energy harvesting with ultra‑low power consumption for low‑amplitude ambient vibrations

Osama Younas

Ping Li

Yumei Wen

Vol. 24, No. 6, pp. 853-861, Jun. 2024

10.1007/s43236-024-00766-9

Piezoelectric energy harvesting

Control circuit

Self-powered

Operational amplifier

Abstract

The consumption of high power and an extended start-up time are some of the major issues faced by piezoelectric energy harvesting. With this in mind, a control circuit with an extremely low power consumption of a few milliwatts is designed in this paper to energize heavy loads like wireless sensor nodes. A low-duty cycled self-powered control circuit, which works only at the maximum power point, is proposed in this paper. During a cold-start, optimum operative conditions can be achieved by this circuit. Moreover, a low power threshold at the input is sufficient to start the circuit. An additional piezoelectric transducer or a DC power supply is not required to operate this designed circuit. In terms of harvesting energy, performance enhanced by 320% can be achieved by this circuit when compared to the standard energy harvesting circuit when connected to a series-synchronized switch harvesting on an inductor (SSHI) with a large storage capacitor of 150 mF. An input power of 4.42 μW is enough for the circuit during cold-start and it consumes an ultra-low power of 0.3 μW.

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Cite this article

[IEEE Style]

O. Younas, P. Li, Y. Wen, "Self‑powered piezoelectric energy harvesting with ultra‑low power consumption for low‑amplitude ambient vibrations," Journal of Power Electronics, vol. 24, no. 6, pp. 853-861, 2024. DOI: 10.1007/s43236-024-00766-9.

[ACM Style]

Osama Younas, Ping Li, and Yumei Wen. 2024. Self‑powered piezoelectric energy harvesting with ultra‑low power consumption for low‑amplitude ambient vibrations. Journal of Power Electronics, 24, 6, (2024), 853-861. DOI: 10.1007/s43236-024-00766-9.