I didn't say it had to be fed from an external one, but, rather, that it required a precise voltage at some point in the circuit. Erik insists that it needn't have any voltage control at any point. I think that might have been a poor choice of wording, but I disagreed, in the hope he'd correct himself, or show that it was, in fact, the case. So far, he's not done that, nor have you.


I didn't say it had to be external. I implied that it had to be part of the overall circuit. I'd point out, too, that current sources are not relevant to this thread. Erik jumped in with his <laser-diodes are current devices> rant which Kai quickly pointed out was irrelevant since no laser diodes were being implemented. The laser diode was in a module which dealt with those matters on its own. As for changing the subject ... I simply recommended a common adjustable voltage regulator when Chico had indicated he was having trouble generating the correct supply voltage.



As I've already stated in another post, I'm just trying to drag some useful information out of you and Erik with this otherwise irrelevant bit of this thread. You claim to have a current source design that requires no voltage regulation of any sort at any point in the circuit. Remember, the wild-hare-chase began with the voltage regulation matter. Where's the useful information that you've provided?

RE