Laser Diode Constant Current Driver 25mA pulsed

368

04:15:42

Constant Current Source for laser diode 5 volts 25 mA

published 7 years ago

sshsslfun

7 years ago

Careful with lasers. You are using a laser which the safe distance is 80 meters! Even a small reflection of this can leave you permanently blind!! Don't try this unless you have a degree in lasers and have proper safety equipment!!

PrathikP

7 years ago

There is a difference between "constant current" and PWM.

farzin

7 years ago

@sshsslfun. This circuit as it is is meant for 5mw laser class 2. So it would be safe.

farzin

7 years ago

@Prathik. This producrs a constant current. Its jusz the average if pwm peak. Because pwm is at 50 percent and is not meant to be variable in this circuit.

farzin

7 years ago

Ppl this circuit is meant to be for LED laser not exceeding 5mW. dont try this circuit if the threshold current of your LED laser is much less than 25mA.

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