01-01-2013, 04:34 PM
WIRELESS POWER TRANSFER THROUGH MAGNETICALLY COUPLED RESONATORS
1WIRELESS POWER TRANSFER.pdf (Size: 252.09 KB / Downloads: 54)
Abstract:
The paper explores the possibility of the transmission of electricity without any physical media such as wire cables.
The transmission is based on the theory of magnetic resonance coupling. According to this theory, the transfer of energy between any two objects takes place efficiently when they are resonating at the same frequency, although they do not interact with the other objects (present in surroundings) since other objects have different resonating frequencies.
The core of the paper is the “MAGNETICALLY COUPLED RESONATORS (MCRs)”. Magnetically Coupled Resonators are the set of 2 devices having the same resonating frequencies. The magnetic coupling between 2 MCRs provides a strong method of coupling which helps in very efficient power transfer and at the same time has the advantage that it weakly interferes with the living organisms, thus this idea is biologically feasible as well.
This system does not radiate electromagnetic waves rather it produces a magnetic field which oscillates at a high frequency. The transmitting MCR is fed electrical energy and it produces an exponentially decaying magnetic field, in its vicinity, oscillating at a high frequency. The receiving MCR intercepts this magnetic field and produces electrical energy as output. Thus, the magnetic field acts as a carrier for power transfer.
The greatest advantage of this method is that the power is not lost to the environment through radiation, hence efficiency improves substantially.