By
J.SIVASHANKAR
CONTENTS
➢ ABSTRACT
➢ INTRODUCTION
➢ CONCEPT OF SELF CHARGING
➢ ACTUAL SETUP FOR WIRELESS CHARGING
SAMPLE CIRCUITS WITH TWO STAGES
IMPORTANT POINTS
CONCLUSION
ABSTRACT
T he Cellular revolution has spread to every nook and corner of the world and connected distant parts of the globe. Whether it is for business purpose or for personal use, one needs an efficient way of charging the cell phone battery. But most people probably don’t like being tethered to the wall, as the battery charge is a prime constraint in the uninterrupted communication device. Try Thinking of a system where your cell phone battery being charged while u talk. No more worrying about forgetting to charge the battery. Sound Impossible? The present discussion is to charge the mobile while talking over it. This task can be implemented by making use of the carrier signal obtained after the demodulation of the received modulating signal of the mobile to recharge the cellular phone battery without wires.
This concept basically needs the conversion of AC signal into DC to facilitate the battery charging along with circuitry to raise the voltage level of demodulated carrier signal. In this paper, we present the technique for implementing the same.
1.INTRODUCTION: Cellular telephone technology became commercially available in the 1980’s. Since then, it has been like a snowball rolling downhill, ever increasing in the number of users and the speed at which the technology advances. When the cellular phone was first implemented, it was enormous in size by today’s standards. This reason is twofold; the battery had to be large, and the circuits themselves were large. The circuits of that time used in electronic devices were made from