How to get correct voltage

[ProGamer923]

Hi, I recently got an adjustable laser driver and laser diodes for Christmas. However, the lowest voltage I can get is 10vdc and the laser I am working with is 4.6 volts. I heard something about setting the current and the voltage is dependent on the draw, but I don't just want to plug it in. Let me know if you guys have an answer, thank you!

 

[paul1598419]

You can build a dummy load to test the driver before using it on a laser diode. These are silicon recifiers in series with shunts to change the number of them in the series. A driver should keep the current constant by allowing the voltage to change.

 

[ProGamer923]

You can build a dummy load to test the driver before using it on a laser diode. These are silicon recifiers in series with shunts to change the number of them in the series. A driver should keep the current constant by allowing the voltage to change.

Do you know how to let the voltage change freely or does the driver do that on its own.