2,771% Triple-Source Ground-Symmetric Pile-Up Resonant Energy Harvester

초록

This paper presents a triple-source ground-symmetric pile-up resonant (TGPR) harvester which extracts energy from a piezoelectric transducer (PZT), a photovoltaic (PV) cell, and a thermoelectric generator (TEG). While the circuit cannot exceed a maximum allowable voltage of the transistor (V<inf>max</inf>), the voltage amplitude across the PZT can reach up to 2 V<inf>max</inf> owing to the ground-symmetric structure. As a result, the TGPR harvester generates 887 μ W of power from the PZT, achieving a 2,771% improvement in power extraction. © 2025 JSAP.