Wireless Power Transfer

Yes, we can transfer this is not a today’s innovations. This idea was proposed by a late “NIKOLA TESLA”, he was the first person to design the Alternating current(AC) electricity supply system. In earlier 1890’s Nikola tesla was the only person to have faith on the power can be transmitted through wirelessly he worked on that idea for so many years, later Tesla has able to light electric bulbs wirelessly at his Colorado Springs lab using electrodynamic induction (resonant inductive coupling). Tesla had big plans and hoped that the “Wardenclyffe Tower”, would transmit the energy wirelessly but it has remain as his dream due to some difficulties, including funding and timing.


Coming to wireless power transmission the power can be transmitted through the different methods mainly:

1. Inductive coupling: –  This is the most commonly used method we can see the wireless charging pads and some of electric brush charging pods, they work under this method. In Inductive coupling method the power is transmitter by the magnetic fields produced by a coil. Transformer is the best example of inductive coupling in this the air is ionized, primary and secondary coils are not connected through wire but the power transmission is done by the mutual inductance.

2. Resonant Inductive coupling: – This method is similar to the inductive coupling. In inductive coupling method the power we can transmit the power through short distance or short range but by using a Resonant inductive coupling we can over come that problem in this method the power transmits for long distance compared to inductive coupling by using a resonant circuit attached to a receiver side

These are some of wireless power transmission methods.

The advantages of wireless power transmission: –

1. Losses would reduce.

2. Better than conventional wire transmission.

3. Energy crisis can be decreased

4. More Efficient.

My references : – Wikipedia, Nikola tesla paper works, Witricity company profile, some other websites.


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