I'm designing UPS these days.
I found a circuit for the inverter inside the UPS. But the problem with that is that it generates and square wave. So I thought of filtering it to get the Sine wave.
So my question is that is it ok to filter the square wave after amplifing it to 240V/ 50Hz Ac or is it better to filter it before amplifing and amply the sine wave after that .
I found a circuit for the inverter inside the UPS. But the problem with that is that it generates and square wave. So I thought of filtering it to get the Sine wave.
So my question is that is it ok to filter the square wave after amplifing it to 240V/ 50Hz Ac or is it better to filter it before amplifing and amply the sine wave after that .