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#THS018 Wireless Charging Systems for Electric Vehicles.

Wireless charging of electric vehicles (EVs) is a transformative technology that eliminates the need for physical cables, offering seamless and convenient energy transfer.

Project Fee:Negotiable

Project Discount:0

Project Duration:7 Days

Introduction

The Wireless Charging System for Electric Vehicles is designed to transfer electrical energy to an EV battery without requiring a direct cable connection. The system uses electromagnetic induction between transmitter and receiver coils to demonstrate contactless power transfer. This technology offers a convenient charging approach and has potential applications in home garages, parking facilities, and future smart transportation infrastructure.

Objectives

  • To develop a wireless EV charging prototype.

  • To transfer electrical energy without physical connectors.

  • To monitor charging voltage, current, and power.

  • To evaluate wireless power transfer efficiency.

  • To explore convenient and sustainable EV charging technology.

Methodology

  • Design a high-frequency power transmission circuit.

  • Install a transmitter coil and a receiver coil.

  • Integrate a switching circuit to generate a changing magnetic field.

  • Connect a rectifier and regulator to the receiver circuit.

  • Add voltage and current sensors to monitor charging performance.

  • Connect a compatible battery or test load.

  • Evaluate efficiency at different coil distances and alignments.

Instrument List

  • Transmitter Coil

  • Receiver Coil

  • High-Frequency Inverter Circuit

  • MOSFETs or Switching Devices

  • Gate Driver Circuit

  • Rectifier Circuit

  • DC-DC Converter

  • Voltage Sensor

  • Current Sensor

  • Microcontroller

  • LCD Display

  • Battery

  • Protection Circuit

Working Principle

The transmitter circuit converts DC power into a high-frequency alternating current, producing a changing magnetic field around the transmitter coil. When the receiver coil is placed within the effective transfer range, the magnetic field induces an electrical voltage in it. The received power is rectified and regulated to provide a suitable DC output for battery charging. Sensors monitor voltage, current, and power, allowing the system to evaluate charging performance and efficiency.

Advantages

  • Contactless battery charging

  • Convenient charging operation

  • Reduced connector wear

  • Real-time charging monitoring

  • Potential for automated parking-based charging

  • Supports electric vehicle adoption

Conclusion

The Wireless Charging System for Electric Vehicles demonstrates how electromagnetic induction can transfer energy without conventional charging cables. By integrating power electronics, receiver circuitry, and monitoring sensors, the project provides a foundation for studying wireless EV charging. Its performance depends on coil alignment, transfer distance, power losses, and thermal conditions. Practical EV charging requires suitable battery management, foreign-object detection, electrical protection, and compliance with applicable safety standards


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