In Reply to: single phase inverter posted by Denis O' Brien on 10/30/02 at 1:42 PM:
> For a final year college project, I need a
> cicrcuit schematic showing the components used
> so that I can build an DC to AC single phase
> full bridge Inverter for an automotive PTO
> system. The input voltage is 48V DC (ideally
> 42V!) and the output voltage is 110/220V AC,
> 60Hz.I was thinking of a SPWM inverter to give
> sinusoidal output voltage.I need to know what
> is the best type of Mosfet that could be used
> to achieve this?.
How much Power do u need?
If u want to build *real* sine wave inverter u need some "big" types. Couz much power is lost on the fets - else u got something like a "toster" ;-)
"IRFxxx" types are fine, and also cheap. Maybe u need more than one... don't forget a heatsink :)