I want to add two output AC powers of 5 Watt and 6 Watt, How can i connect this output single phase AC powers from two power supplies to get ADDITION of around 11 Watt or nearer?
Power supplies can be put in parallel to increase the output current capability but they've got to put out identical voltages, matter of fact they should be the same part so the loading curves match.
AC supplies are usually easier to parallel if of identical voltages.