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Old 06-12-2016, 11:30 AM
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wasyoungonce (Brendan)
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wasyoungonce is offline
 
Join Date: Jul 2006
Location: Mexico city (Melb), Australia
Posts: 2,336
Hi Flip...no problems..I'll send a link to our Google Drive.

Basically we changed the VT1 to a IRF7832 and tested this using TECs. The reason was the original VT1 as not good enough Rds on (too high) with low gate Vgs from the ATMEGA328 (~3.0~3.3V).

You look like you have already done something like this with Q2? Oh we added 2 extra 100uf ceramic capacitors on DD11 output as per Ukrainian forum.

Anyway you boards look damn fine. Both our layouts are very similar. We are just about to order, probably from PCBWay. Luka is doing this as he's dealt with them before. I've only used OSHpark and futurlec (pls don't use futurlec anyone they have gone off!)

Brendan

edit:
Forgot to ask...have you made any other changes ...kinda something we might have missed?
Brendan


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Last edited by wasyoungonce; 06-12-2016 at 03:31 PM.
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