A 45-W Two-Stage Wireless Fast Charger Using Unregulated Inductive Power Transfer

• Published in: IEEE journal of emerging and selected topics in industrial electronics (Print) Vol. 2; no. 3; pp. 287 - 296
• Main Authors: Zhao, Peng, Zheng, Guangce, He, Rong, Liu, Yu, Fu, Minfan
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.07.2021; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Batteries; Buck converters; Charging; Efficiency; Electronic devices; Energy conversion; Evaluation; Fast charger; high step-down voltage ratio; high-order resonance; Power transfer; Redundancy; Regulation; Stress; unregulated inductive power transfer; Voltage control; Voltage gain; Wireless communication; Zero voltage switching; zero-voltage-switching (ZVS) model

Most of the existing wireless offline chargers would employ redundant power conversion and isolation stages to charge a low-voltage battery, which leads to limited overall efficiency. In order to address the redundancy issue, this article proposes a wireless fast charger by using a two-stage configu...