Witricity Technology Essay

When computers, cell phones, laptops, iPods, etc. were invented our antennas ended. Now we are used to these devices. In fact, charging all these appliances has become a head ache Each appliance has its own set of chargers, and with every family member owning their cellphones, the drawers are overflowing with all sorts of wires. We are pissed off by our cellphone beeps in hunger for a battery charge, can we think? What if our cellphone battery get 'self charged '.YES witricity (highly resonant wireless power transfer) makes it possible. It ensures our daily appliances to get charged on their own eliminating the need of plugging them in. Even better, because of WiTricity some of the devices won't require batteries to operate.it uses principle of magnetism, resonance and electromagnetism.

Keywords- witricity, magnetism, resonamce, electromagnetism

I. INTRODUCTION

Understanding what WiTricity technology is—transferring electric energy or power over distance without wires—is quite simple. Understanding how it works is a bit more involved, but it doesn’t require an engineering degree. We’ll start with the basics of electricity and magnetism, and work our way up to the WiTricity technology. Resonance is a property that exists in many different physical systems. It can be thought of as the natural frequency at which energy can most efficiently be added to an oscillating system. length of the swing. The child can make the swing go higher if she properly coordinates her arm and leg action with the motion of the swing. The swing is oscillating at its resonant frequency and the simple movements of the child efficiently transfer energy to the system.

Resonant Magnetic Coupling: Magnetic coupling occurs when two objects exchange ene...

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..., WiTricity’s founding technical team was the first to discover that by specially designing the magnetic resonators, one could achieve strong coupling and highly efficient energy exchange over distances much larger than the size of the resonator coils, distances very large compared to traditional schemes.

Non radiative

WiTricity’s technology for power transfer is non-radiative and relies on near-field magnetic coupling. Many other techniques for wireless power transfer rely on radiative techniques, either broadcasted or narrow beam (directed radiation) transmission of radio, or light waves. Broadcasted radiation of radio frequency energy is commonly used for wireless information transfer because information can be transmitted over a wide area to multiple users. The power received by each radio or wireless receiver is miniscule, and must be amplified in a receiving un