Micro-Controller Based Home Uninterruptible Power Supply is available in various ratings such as 250Va, 400VA, 600VA, 800VA, 1400VA etc. The Power Supply is widely used to save power and protect the home electrical appliances from short circuit. The Power Supply comes in micro processor based design and can work for a frequency range of 47-53 Hz. Micro-Controller Based Home Uninterruptible Power Supply offers output through modified square wave form.