I took apart a cheap laser disco light, & hooked my oscilloscope up to the green diode... 20 volts! NO type of power wave, down to 5 microseconds.
I noticed the green laser module only has power leads - the photo-resistor isn't connected.
So I'm thinking - perhaps it's using 20 volts, and about 5 milliamps (I haven't checked the actual ampage yet) - as a safe way of powering the laser without blowing it?
I've read green laser modules (no driver) take around, roughly 4 volts, and several milliamps usually.
Does anyone have any experience or thoughts on this?
:thanks:
I noticed the green laser module only has power leads - the photo-resistor isn't connected.
So I'm thinking - perhaps it's using 20 volts, and about 5 milliamps (I haven't checked the actual ampage yet) - as a safe way of powering the laser without blowing it?
I've read green laser modules (no driver) take around, roughly 4 volts, and several milliamps usually.
Does anyone have any experience or thoughts on this?
:thanks: