Inverter building using Wiseguys Power board and the Nano drive board

Author	Message
KeepIS Guru Joined: 13/10/2014 Location: Australia Posts: 1727	Posted: 09:50am 06 Jun 2024       FYI and just to finish the testing. Some better DSO captures, and proved it's the 5V regulator. This is the 12v rail with 1000uf. I didn't save the next capture but it shows the same bit of noise on the end of this one as it drops, it's coming back from the 5v regulator in the next pix, which has almost a 2vp-p saw-tooth around 90Hz.     This is the 5v rail with no cap with the 12v rail as above. The 5v rail with a cap across the regulator output.   LCD and Power LED fade out nicely. Tomorrow I'll look at the Hardware mods with respect to the operation of my inverter. Things I find may have no relevance to other inverters builds, but it's worth looking into in case it offer an advantage I have overlooked. .