The card is designed with ATMEL Micro controller based High frequency PWM Technology. The card size is less than A4 size. Switching frequency is 12 KHz. Out put frequency is 50.00Hz with output regulation of 230 V +/- 1%. Pure Sine wave is assured from no load to full load. IGBT Drivers with over gate-current protection trip arrangements used to avoid IGBT damages. Annunciations include Inverter on, over load, Battery low with time delay, output voltage high and trip with audio and visual indications.