A Dual-SSHC Rectifier With Digital-DCB MPPT for Triboelectric Energy Harvesting
Wenyu Peng (TU Delft - Electronic Components, Technology and Materials)
X. Yue (TU Delft - Electronic Instrumentation)
Willem Dirk van Driel (TU Delft - Electronic Components, Technology and Materials)
Guo Qi Zhang (TU Delft - Electronic Components, Technology and Materials)
S. Du (TU Delft - Electronic Instrumentation)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
Triboelectric nanogenerator (TENG), advantageous in high energy density and flexibility, is promising as a sustainable energy source but can hardly be used to power edge devices directly due to its high-voltage AC output and varying capacitive impedance. To address it, this work proposes a power-conditioning interface with a fully integrated dual synchronous switch harvesting on capacitors (D-SSHC) rectifier for triboelectric energy extraction. Furthermore, a full digital duty-cycle-based (DCB) maximum power point tracking (MPPT) algorithm is developed to optimize the energy harvesting efficiency with simple implementation and continuous tracking. Designed and fabricated in a 0.18-μm BCD process, the proposed interface can extract energy at a maximum output voltage of 70 V. According to the measurement results, it achieves 99% MPPT efficiency and an energy extraction improvement of 598% compared to a full-bridge rectifier.
help_outline