Bryan's Inverter build

Author	Message
Bryan1 Guru Joined: 22/02/2006 Location: Australia Posts: 1391	Posted: 04:25am 07 Oct 2023       G'day Guy's,             Well the Ching inverter project is 99.9% finished with just the ground wires to finish so here's some pic's as promised. Here's a pic of the side of the box now I just used the original off/on switch that was on the box and that square object is a ali express AC volt and current meter. Now I have read before about blowing the fets on turn on so if my thinking is right once the battery is connected it should charge the caps if I'm thinking right. Cheers Bryan Edit:     Well got the ground connection sorted and fired up the inverter and first tried my mig where after doing a tack the mig turned off and I saw on the AC gauge the  output voltage had dropped to 130 volts then it bounced back to 245 volts and the mig turned on again. So decided to test out my bunnings vacuum and it worked nicely where that gauge showed 2.5 amps drawn. Next I tried my 5" grinder and it worked nicely. Decided to put my current meter on a battery lead and with no load 38 amps   and the toriod was nice and warm where after 10 minute later after it was turned off the temp was 72C. So I do think by using both both windings is the root cause so came down for a look at that toriod pic so I'll go back upto the shed and just red/blue secondary as the AC output and see how it goes. Now the led on the inverter was green but the led on the driver board was red but without any data not sure where that problem lies. O'well the testing goes on and hopefully get that idle current draw down from 912 watts   Edited 2023-10-07 15:17 by Bryan1