I work on really old CNC/Laser systems and noticed that when I use my analog input of 0 to -8v that when the laser it is feeding loads the signal down quite a bit. -8v becomes about -2v. These two pieces of equipment do not normally work together, but I have every other function working perfectly. So looking for a simple idea to boost its strength. Unfortunately the controller does not spec how much current it can deliver and the laser doesn’t spec how much current it demands. Ideally I’d also like to make it adjustable so the 0 to -8v will result in 0 to -5v, but that’s not critical.
"I am stuck on Band-Aid brand, 'cause they are stuck on me"
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