Hey all just wanted to confirm somethings about running a proffieboard on 2 cells (wired in series) with a single laser that needs the voltage of 2 cells to even turn on.
I have already done a high powered laser build before but that one ran on 1 cell with no problem. This next build requires a minimum of 2 cells for at least 7v.
I’m going to be using a buck converter to make sure the board doesn’t get damaged with the 2 cells in series. I do have the room to fit one that’s not a problem. Efficiency doesn’t matter too much as the batteries will be easily removable.
Wiring the buck converter seems straight forward. Voltage from batteries go through the buck and out comes the necessary voltage for the proffie to safely run on.
So my questions are…
How do I wire this laser to get adequate voltage from the Proffie’s on board mosfets?
Do I simply hook up the negative side of the laser to 2-3 led pads and the positive end go straight to the batteries, by passing the buck, for the lasers 7v requirement?
Or will I need to run some some kind of external mosfet to maintain proper voltage?
I still need the Proffieboards mosfets to turn on and off this laser as I’m using it as the controller.
The laser will not be constantly on, it will just flash momentarily like a blaster build.
I’ve done this already with a “lower” power laser and I just want to make sure I can do it with a higher power, higher voltage laser.
Thanks for any help
