ENERGY HARVESTING - ELECTRICAL CONVERSION OF GSM SIGNAL FOR BATTERY CHARGING APPLICATION

This project is about harvesting GSM energy to provide alternative sources for battery charging application. Global System for Mobile (GSM) band is one of the signal that are widely available in RF range with the frequency between 890 MHz – 960 MHz. As the energy levels harvested in the environment are very low and not enough to charge mobile phone, voltage multiplier rectifier circuit and current amplifier are designed to increase the output voltage and current respectively. The aim is to prove that low energy could be increased to achieve charging load voltage and current requirement of 3.7 V and 1.5 A respectively. The multi-stage rectifier (AC-DC) voltage multiplier and low-dropout micro power regulator (LDO) is simulated using Multisim software and presented. Different type of Schottky diodes performance is also studied and simulated in this work. The steps taken to accomplish the projectare discussed in detail.