My day is always fun to begin with. I get to my work place and it turns out that there is a job involving a three phase auto changeover, an ordered square wave inverter and a programmed battery charger.
Well below are the pix, as we engineer's don't talk too much.
The Circuit for the three phase auto changeover.
The Ordered Square wave inverter.
The Programmed battery charger already completed.
sorry about the orientation of this last picture.
Picture credit: My infinix hot 2