Students develop wireless power transmission system

[dwarakesh]

Thiruvananthapuram: Students of the Mohandas College of Engineering and Technology here have developed the working model of a short-range wireless power transmission system that could be used to charge electrical equipment from a remote source.

P. Arun, A.R. Azeem, K. Indrajith, Maneesh Manohar and Sanal Rajendran, final-year students of the Electrical and Electronics branch, developed the model as part of their project work.

The system uses a magnetic field instead of radiation for power transmission.

The model works on the principle of resonant electromagnetic induction.

The power sources and capture devices used in resonant electromagnetic induction systems are specially designed magnetic resonators which transfer power. These source and device designs and the electronic systems that control them support efficient energy transfer over a distance.

The design developed by the students consists of two copper coils, each a self-resonant system. One of the coils, attached to the power source, is the transmission unit. Instead of irradiating the environment with electromagnetic waves, it fills the space around it with a non-radiating magnetic field oscillating at a certain frequency.