Wireless power transfer (WPT) is gaining much attention for battery charging of electric vehicles (EVs). Resonant WPT systems play a crucial role in achieving efficient power transfer from source to load. An overview of two-element resonant compensation techniques and their characteristics under various operating conditions are presented. Also the converter and control strategies used for different topologies are reviewed. The behavior of the performance factors are evaluated against the operating conditions and compared for the different topologies. © 2019 IEEE. All rights reserved.