Wireless power transfer (WPT) for electric vehicles (EVs) promises safe, convenient, and automated charging without exposed connectors. However, practical implementations face challenges, including reduced transfer efficiency under misalignment, thermal rise in coils and electronics, and safety risks from foreign objects or overheating. This paper presents the design, implementation, and experimental evaluation of a safe and secure wireless EV charging prototype.
with embedded monitoring. The system integrates inductive resonant coupling, voltage and current sensing for input/output power measurement, and ambient/near-coil temperature monitoring using DHT sensors. We present experimental efficiency measurements, thermal analysis, and safety behavior under different alignment and load conditions. The prototype attained up to 82% power transfer efficiency under ideal alignment and approximately 61% under severe misalignment in laboratory
conditions. Thermal monitoring showed a temperature increase from 28?C to 55?C over 25 min for a measured loss of 5.5 W. A comparison with three representative recent studies is included to position our contribution. The results demonstrate that embedded monitoring and threshold-based safety logic can substantially improve operational safety while maintaining an acceptable efficiency for prototype-level systems.
@artical{r1532026ijcatr15031001,
Title = "Safe and Secure Wireless Charging System with Efficiency and Thermal Analysis for Electric Vehicles",
Journal ="International Journal of Computer Applications Technology and Research (IJCATR)",
Volume = "15",
Issue ="3",
Pages ="1 - 8",
Year = "2026",
Authors ="Rupa Reddy A, Lokesh B, Shiva Shankar Reddy B, Tharun G,Mr Ramesh P"}