Vizier87
Active Member
Hi guys,
I'm building this regulator for my laser pump which needs to be maintained at 2V , 200mA as shown below:
View attachment 61564
It's an AP1117 regulator, which gives out 1A and can be adjusted like an LM317. So as the output current is 1A, I'm limiting it using the 2n3904 which has Ic rated at 200 max.
These are the components I already have, so I'd rather not use anything else.
The question is: Does it stay at the rated Ic if I saturate the BJT's base? Do I need to add any resistor in series for the laser?
Thanks for the input.
Vizier87
I'm building this regulator for my laser pump which needs to be maintained at 2V , 200mA as shown below:
View attachment 61564
It's an AP1117 regulator, which gives out 1A and can be adjusted like an LM317. So as the output current is 1A, I'm limiting it using the 2n3904 which has Ic rated at 200 max.
These are the components I already have, so I'd rather not use anything else.
The question is: Does it stay at the rated Ic if I saturate the BJT's base? Do I need to add any resistor in series for the laser?
Thanks for the input.
Vizier87