It's been a long time since the college electronics labs, but would it be feasable to:
Take 2 or 3 of the el'chepo DC to 110Vac power inverters, wire them each into a 1:1 AC isolation Xformer. The wire the AC isolation outputs in parallel. Connect it all up into a GFI outlet with a 15A breaker to get a higher output current rate?
Thanks everyone for any input, and even reading this...
JJ
Err, no. The AC, while of the same nomianl voltage and frequency will not be the same phase. They will rapidly go bang.
You cannot put different AC sources in parallel like batteries. They won't be in phase. Some of them will be wanting to swing positive when others are swinging negative. Remember what AC *is*...
No. They are never 100% the same plus if one fails the other two will try to feed it "from the back". You might come home to find several fire engines around the smoldering remains of your house.
As others have pointed out, the phase of the AC outputs would have a random relationship, and varying with time as well. To achieve a workable configuration, one needs to be made master and the inverters of the others driven from that master. Then you only need worry about voltage differences and the effect of circulating currents.
Simplest way to get a bigger inverter is buy one.
Nothing to do with what AC is, everything to do with the way it is "made". Rotary 120V AC generators of the same or close to the same frequency can happily be paralleled. They will frequency & phase lock to one another when done properly.
Inverters are a whole 'nother story. Ed
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