How can I get a suitable voltage from a 5V power supply?
I've got a laser diode, with the following specifications:
Power Output CW 500mW
Working Current: I<350mA
Working Voltage: 2.2V"
And a laser diode driver:
"1. Constant current Stable voltage IC circuit, laser diode can be better protected without being damaged
2.Constant current output , Can be adjusted（0~580mA）
3.DC supply voltage input 3.0~4.2V.
4.Suitable for 808nm 100mw~500mW laser diode."
The combination of these two things will be switched on and off by an Arduino (Probably using a relay, as the driver board has a switch connection) - This may change but I don't imagine this will matter.
I noticed that the 'DC supply voltage input' says 3.0-4.2V . My power supply will be 5V (I don't imagine that Amps matter but if they do, it has a max output of 34A). What would the best/safest way to do this be? I don't want to burn out my laser because they're comparatively expensive, and I'd like it to be able to run relatively continuously (Probably multiple-minute continuous usage)
(For those of you wondering, I'm one of the many people making a laser engraver/cutter from scratch)