Inverter building using Wiseguys Power board and the Nano drive board


Author Message
KeepIS

Guru

Joined: 13/10/2014
Location: Australia
Posts: 1768
Posted: 01:21am 08 Jun 2024      

A final DSO image of the 5v rail as inverter is powering down.

Test caps I had on the LCD plugs are of course removed.  

I removed the Controller, added a small 1000uf to the output of the 7805 linear regulator, and added a 220uf to the input (across the 12v). Both simply solder into the existing holes next to the 7805 very neat, no mods, no tracks touched.

If you get a small SMPS regulator this clean then go for it, but if not, I think the simple 7805 change and the supervisor IC mod will give you all the peace of mind you are seeking.  


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