Inverter with Audio Signal is a system, widely used in domestic domains, which provides back up power for the time when mains is not present. The Inverter takes DC from battery and converts it into AC and provides it to the household circuit, when mains are not present but when mains are present it does the reverse, that is, it takes power from mains AC, converts it into DC and charges the connected battery. The Inverter has input dc voltage from 12 v to 180 v and charging current from 3 A to 6 A. The Inverter has the feature that primary current is controlled and has inverter efficiency of 90% approx. The Inverter has audio signal on power failure overload and low battery and has visual indications for mains present, charge on. The Inverter has protection on over load, short circuit, battery deep discharge and battery over charge and has instant surge load bearing capacity and auto restart facility on over load and low battery. The Inverter has auto bye-pass facility of input electricity and is a efficient power management systems. The Inverter with Audio Signal has PCB mountable cube relays for better performance and VA rating from 300 VA to 10 K VA, input voltage from 60 to 270 V.
