Year: 2025
Type: article
Abstract: Due to the dynamic changes in vibration, energy harvesting using Piezoelectric Transducers (PZT) faces challenges with limited harvesting power. Hence, this paper presents a hybrid rectifier with dual-modes Synchronous Electric Charge Extraction (SECE) method for harvesting piezoelectric energy, aiming to achieve a higher output power. In situations where electric energy is insufficient, the rectifier operates in the passive SECE mode, enabling energy harvesting without a power supply and helping to self-start faster. When there is sufficient electric energy, it adaptively switches to the active SECE mode to enhance harvesting efficiency. Measurements indicate that the maximum power harvested in the passive SECE modes can be up to 2 times that achieved with the traditional full-bridge rectifier, and the peak conversion efficiency reaches 83% in the active SECE mode.
Source: IEICE Electronics Express
Authors: Zhidong Chen, Yidie Ye, Yang Wang
Institutions: Zhejiang Wanli University, NingboTech University
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
Awards: G2161052840, G2536227360
OpenAlex ID: W4408755372