Design of the Low Energy Consuming SMPS (Switched-Mode Power Supply) System using the Solar Cell

Abstract

IT appliances such as TV, computer and monitor are used in many households, but they consume energy even when they are not in use to maintain a convenient ready state for instant on-demand use. It is called ‘standby power’ or ‘vampire power’. Most of the standby power used by appliances is not performing any useful function. It is a small amount of electricity for households, but it is a great loss to the country. To reduce the standby power in electronic devices, this paper proposes Hybrid SMPS system using solar energy. This system consumes the standby power from the charged battery power while SMPS is turned off. And when battery status becomes weak, system will automatically change the power supply method to electricity mode. Then the battery will be charged by solar panel while SMPS is operated. The advantage of this system is that it can reduce the waste of power automatically. We implemented this system into the LCD monitor, but this method would have a wide range of applications in electronic devices.