Nope, haven't done that. Good idea.
I'm also redoing my prototype board to have a somewhat "star pattern" for VDD and VSS. Right now the 2 rails run all over the place.
Right now I'm just...
if you didn't already........ put your probe lead on 'ground/negative' at a distance from the negative/ground probe connection..... and probe to various ground/neg locations. Sometimes noise is...
amgen Today, 01:03ROFL...
Good one, Richard!
Wasted so much time trying to figure out why I STILL had a lot of ripples with the LM1084.
I checked directly on the wall adapter:
9818
GIGO; can't expect the LM1084 to do miracles with...
16F18877 specifically
There's a bunch of charts in the datasheet with fancy curves, as well as the 85C limit for extended operation (section 37.2).
1. At what point is it recommended to start...
Received the LM1084-ADJ, still waiting on the recommended caps (to properly test ripples), but it's already running nicely with what I have on hand.
Also got a thermal imager to help identify...
The 2A wall adapter was a quick fix to be able to continue testing.
The 9V 2A is holding up for now.
That's what I said in the second part about getting more than 2A out.
You can't get 5A out if the adapter can only supply 2A
Noname chinese rubbish... They don't even have the proper distances or creapage on the PCB...
Prefer good brands like Mean Well or Sunny.
Ioannis
Re: Voltage regulation circuit 12V to 5V in 5A range
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amgen Today, 02:08not trying to 'rain on your parade'..... it is possible that isn't where your noise is coming from...... if you haven't already, put a 10 or 100 microfarad electrolytical and a couple of .1 or .01...