Hi, I am wanting to make a burning laser! But my knowledge of electronics is minimal!
I have found instructions for making a laser driver which provides a current up to 250ma.
http://www.rog8811.com/laserdriver.htm
The diode I have found can output 100mW @ 200mA, and 230mW @ 320mA when pulsed at 2khz. Is the mW output purely based on the current? ie increase in the current leads to an increased mW output?
http://www.ebay.co.uk/itm/160690032152?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
I guess that just means I set the potentiometer on my driver to 200mA and the diode will output at 100mW?
But if I pulse the current at 2000 times a second and set the potentiometer to 320mA the diode will output at 230mW? Which of course is much more desirable!
Is it difficult to get the current to pulse at 2khz? I have made the driver and have the +- output leads.... would the components that make the current pulse fit after the output from the driver or would the entire driver have to be redesigned? Which leads me onto.... what would I have to do to get the driver to provide 320mA?
And one last question. The input voltage to the lm317 voltage reg is 7.2v on the driver design. Can this voltage be anything within the limits of the lm317.... ie can a just use a 9v battery!
I have found instructions for making a laser driver which provides a current up to 250ma.
http://www.rog8811.com/laserdriver.htm
The diode I have found can output 100mW @ 200mA, and 230mW @ 320mA when pulsed at 2khz. Is the mW output purely based on the current? ie increase in the current leads to an increased mW output?
http://www.ebay.co.uk/itm/160690032152?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
I guess that just means I set the potentiometer on my driver to 200mA and the diode will output at 100mW?
But if I pulse the current at 2000 times a second and set the potentiometer to 320mA the diode will output at 230mW? Which of course is much more desirable!
Is it difficult to get the current to pulse at 2khz? I have made the driver and have the +- output leads.... would the components that make the current pulse fit after the output from the driver or would the entire driver have to be redesigned? Which leads me onto.... what would I have to do to get the driver to provide 320mA?
And one last question. The input voltage to the lm317 voltage reg is 7.2v on the driver design. Can this voltage be anything within the limits of the lm317.... ie can a just use a 9v battery!