access icon free Design of self-powering part of SSHI interface for piezoelectric energy harvesting

© The Institution of Engineering and Technology
Received 07/11/2012, Published

A design of the self-powering part of the synchronised switch harvesting on inductor (SSHI) interface based on zero-velocity crossing detection for a piezoelectric energy harvester is proposed and investigated. To achieve a totally self-powered energy harvester, a part of the extracted energy can be used to supply the MOSFET IC of the electric interface. The design of an extra piezoelectric element dedicated to supplying the electronics is presented. The study comprises a theoretical part and an experimental proof-of-concept demonstration of the proposed design method.

Inspec keywords: energy harvesting; piezoelectric transducers; MOSFET circuits

Other keywords: zero-velocity crossing detection; piezoelectric energy harvesting; piezoelectric element; self-powered energy harvester; electric interface; MOSFET IC; synchronised switch harvesting on inductor interface; SSHI interface; self-powering part

Subjects: Sensing devices and transducers; Energy harvesting; Sonic and ultrasonic transducers and sensors; Piezoelectric devices; Energy harvesting

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