Hi. :yh:
Recent 635nm 300mW diode has interesting features.
1. Vf is under 3V.
2. Case-neutral
So I can build this one with case-positive or case-negative.
In other word, I can use positive-regulator(microflex, rkcstr, groove2...), or negative regulator(amc7135..).
Amc7135 is a...