DESIGN AND IMPLEMENTATION OF AN ARDUINO-BASED WIRELESS POWER TRANSFER SYSTEM FOR REAL-TIME VOLTAGE MONITORING

Abstract

Wireless Power Transfer (WPT) is an innovative technology that enables energy transmission without physical conductors, offering significant potential for applications such as mobile charging, electric vehicle (EV) charging, and robotics. Originally conceptualized by Nikola Tesla, WPT operates on the principle of electromagnetic induction, where a transmitter coil generates a high-frequency electromagnetic field that induces current in a receiver coil. In this work, a prototype WPT system is designed and implemented using a copper coil transmitter driven by a MOSFET-based oscillator to generate the required high-frequency field. The receiver coil captures this field and converts it into usable electrical power, which is then measured and displayed by an Arduino microcontroller on a 16×2 LCD screen. This integration allows realtime monitoring of voltage output, providing valuable insights into system performance and efficiency. Experimental validation demonstrates that the system can reliably transfer power across short distances, with voltage output varying based on coil alignment and separation. The results highlight the feasibility of WPT for small-scale applications, while also identifying challenges such as efficiency losses, electromagnetic interference, and coil positioning sensitivity. Compared to conventional wired systems, the proposed design offers enhanced user convenience and safety by eliminating direct electrical connections. This research contributes to the advancement of wireless charging technologies by combining classical electromagnetic principles with modern embedded monitoring, paving the way for scalable applications in EV infrastructure, consumer electronics, and smart robotics.