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General Mach Discussion / Re: Installing a Laser - a nightmare to me!
« on: December 01, 2022, 01:01:09 AM »
I have, and very occasionally use, low power diode lasers. The output power of these lasers is controlled by the ‘Mark/Space’ ratio of the PWM signal rather than by it’s actual voltage level. Having said that I do gate together the PWM and M11/M10 with additional circuitry which I assume maintains the PWM at 5 volts peak although I have never actually thought to measure it.
Just a suggestion but you could try routing your PWM signal through an opto coupler (or two) taking power from the PC’s USB port – that should give you 5 volts peak.
Tweakie.
Just a suggestion but you could try routing your PWM signal through an opto coupler (or two) taking power from the PC’s USB port – that should give you 5 volts peak.
Tweakie.