Solar cells as inductive chargers: How they can be converted to charge electric cars

04.01.2025

Converting solar cells into inductive charging systems

Solar cells are known for converting sunlight into electrical energy. But what if they could also serve as wireless chargers? A simple modification could enable a wall-mounted solar cell to inductively charge an electric car at night or when needed— without the driver having to do anything.

The crucial modification: Inverter for high-frequency current

The key to converting a conventional solar cell into an inductive charger lies in the way it processes the current. Solar cells typically generate direct current (DC), while inductive charging systems require high-frequency alternating current (AC).

Which component needs to be modified?

The solution lies in a special high-frequency inverter that converts the current generated or supplied by the solar cell into high-frequency alternating current. This can then control an induction coil, which transmits the energy wirelessly to the electric car.

How the system could work

1. Using a solar cell as an induction charger: A solar cell on the wall is equipped with an inverter that is supplied with grid power at night.

2. Inverter converts direct current into high-frequency alternating current: The current is converted into a form suitable for inductive charging.

3. Induction coil transmits energy wirelessly: An integrated coil sends the energy to the vehicle, which is equipped with a receiving coil is.

4. Automatic charging function: The system detects the car and starts charging automatically.

Advantages of this solution

• Seamless use: The car is charged without the need to connect any cables.

• Space-saving: A wall-mounted solar cell with induction function requires little space.

• Future-proof technology: Wireless charging is becoming increasingly popular and could become standard in the coming years.

• Energy efficiency: Since the solar cell generates electricity during the day, It could feed part of the required energy into a storage system to relieve the load on the grid.

Conclusion

By installing a high-frequency inverter, a solar cell could not only generate energy during the day, but also serve as a wireless charging station for electric cars at night. Such an innovation could significantly simplify the everyday lives of e-car drivers – The car charges overnight on the wall and is ready for use in the morning without having to plug in a cable.