title: An Inductorless Self-Controlled Rectifier for Piezoelectric Energy Harvesting.
abstract: This paper presents a high-efficiency inductorless self-controlled rectifier for piezoelectric energy harvesting. High efficiency is achieved by discharging the piezoelectric device (PD) capacitance each time the current produced by the PD changes polarity. This is achieved automatically without the use of delay lines, thereby making the proposed circuit compatible with any type of PD. In addition, the proposed rectifier alleviates the need for an inductor, making it suitable for on-chip integration. Reported experimental results show that the proposed rectifier can harvest up to 3.9 times more energy than a full wave bridge rectifier.
authors.affiliation: University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia. 10346734@student.uwa.edu.au.
authors.forename: Shaohua
authors.initials: S
authors.lastname: Lu
authors.affiliation: University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia. farid.boussaid@uwa.edu.au.
authors.forename: Farid
authors.initials: F
authors.lastname: Boussaid
keywords: AC-DC power conversion; SSHI; piezoelectric energy harvesting; rectifier