Solar power charger with universal USB output

Cell phones and other portable electronic video and music players are irresistible devices in our lives. Bigger screens and complex processes of these devices require high power demand which can cause battery charge problem in over use. Nowadays, smart phones and other portable electronic devices are more widely adjustable to charge via usb port. In this paper, portable device charge system is proposed by solar energy with DC-DC boost converter. Efficient and fast charge system is developed in POWERSIM simulation programme. Under steady state conditions 92.6 % efficiency is achieved for solar power charge system.