I am using the tinyg to power my xcarve CNC machine. I recently bought a laser and want to connect it. My input power to the tinyg is 21VDC and it’s working great, but the laser needs 12VDC.
There is 3 wires for the laser, they are 12V, Common, and PWM. Is it possible to use a step-down transformer from 21VDC to 12VDC and connect the 12 V and common to it, then just use the PWM from the tinyg to control it?
You would be better off to use a 12V supply for the laser. It’s probably cheaper than a DC-DC transformer.
The PWM output will be fine to use to control your laser, but you will need to have a different set of operating PWM parameters than you would for a spindle. Your LED laser (I presume) will be expecting a different range than your spindle.