Hi,
I'm in the very early stages of putting together the design for a DC/AC inverter running 24v dc ->230v ac. One of the major design considerations seems to be how long to stay in dc for. At the extremes, you can either invert 12v and step up with a large transformer, or use a DC/DC converter to get 230v then invert. I can see there must be some compromise between DC/DC converter switching losses that will increase with step up ratio, and losses associated with a large transformer, which will become less as the DC converter output rises, but have not had much luck quantifying this compromise. If anone out there has prior experience/words of wisdom, they would be gratefully recieved.
Cheers,
Ben
I'm in the very early stages of putting together the design for a DC/AC inverter running 24v dc ->230v ac. One of the major design considerations seems to be how long to stay in dc for. At the extremes, you can either invert 12v and step up with a large transformer, or use a DC/DC converter to get 230v then invert. I can see there must be some compromise between DC/DC converter switching losses that will increase with step up ratio, and losses associated with a large transformer, which will become less as the DC converter output rises, but have not had much luck quantifying this compromise. If anone out there has prior experience/words of wisdom, they would be gratefully recieved.
Cheers,
Ben