- #1
jbord39
- 74
- 0
Hey all,
I am trying to create a type of current source to switch between 10 mA and 1.4 A at some frequency. I have an idea to use a BJT transistor as a variable resistor in a LM317 (or whatever the high current version is) but am not sure how to do it. Any suggestions? This circuit is to pulse a laser diode. Also, does this circuit have a name?
Thanks,
John
I am trying to create a type of current source to switch between 10 mA and 1.4 A at some frequency. I have an idea to use a BJT transistor as a variable resistor in a LM317 (or whatever the high current version is) but am not sure how to do it. Any suggestions? This circuit is to pulse a laser diode. Also, does this circuit have a name?
Thanks,
John