i was looking at this schematic and saw that in order to increase power output of this circuit, larger transistors and a larger transformer must be used.
i am trying to power 120VAC motor that is rated for 4.5 amps. i am currently unsure of my battery situation at the moment. i dont think i will be using a Sealed lead acid battery... i am trying to at least go with NiMH if not lithium so i can get some capacity while remaining lightweight. ideally i would find a 12 volt battery but i may end up using a 24volt battery or something.
so, because your schematic stated it was good for about 300watts, how can i modify it accordingly to accommodate this motor that will require about 550 watts.
The 12V to 120VAC inverter project does not work properly because it is too simple. Look at the big long threads about its complaints.
It blows up its capacitors because the transistors have avalanche breakdown and its output power is only about 30W not 300W. Changing the transistors and transformer won't make any difference.
As for your motor, why are you trying to run such a large 120V motor from batteries? There must be a more efficient way of doing this...For example, any brushed AC motor will run fine from DC...
12V to 120V Inverter
Posted - Apr 26 2011 : 01:24:12 AM
