Open AccessA Dual-SSHC Rectifier With Digital-DCB MPPT for Triboelectric Energy Harvesting
Author(s) -
Wenyu Peng,
Xinling Yue,
Willem D. van Driel,
Guoqi Zhang,
Sijun Du
Publication year - 2025
Publication title -
ieee open journal of the solid-state circuits society
Language(s) - English
Resource type - Magazines
eISSN - 2644-1349
DOI - 10.1109/ojsscs.2025.3573905
Subject(s) - components, circuits, devices and systems , photonics and electrooptics
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.