can you use a ohm better
Quotecan you use a ohm betterTheirs no place like ohm.
Do you have a link to that DC/DC converter? I'm wondering if it could be an isolated converter (no ground continuity from input to outout) ? If not, can you use a ohm better and see if the negitive in and out pins show continuity? The first way you showed it wired up should work if it's not a isolated converter. Not sure about it being a noise issue or not, only a scope would verify that or not.Lefty