i need a minimum 100w inverter circut to run a fan(60w) and two energy saving light( 20w+20w). the ups output runs light good but it does not run fan. so i need to build one to run fan.

 

Hi,

The ups output is a square wave. The AC fan motor doesn't like it. One solution is to rectify the ups output and run a DC fan motor.

 

hi
is it possible drive the output of a Wien Bridge Oscillator using 2n3055 and using a 12v 10A transformer to get sine wave output.