Unless there's a smoking crater in your board somewhere,
it's most likely going into the IRF510's.
I suggest you disconnect the power lead into the IRF510's?
and then measure the current to the rest of the rig.
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On Sat, Dec 23, 2017 at 08:57 am, Jerry Gaffke wrote:
3 amps at 12v is 36 watts, more than my soldering iron
Any idea what's getting hot?
