Is there such a thing as an opto mosfet?
I was just thinking about gain feedback that's DC isolated - is there SATAAOM? ;-)
In my mental imagination's movie screen, I see something like the old incandescent/CDS gain controls. HP used just the filament, but that was to stabilize the gain - essentially, I want to amplitude modulate a resonant oscillator.
Long-tailed pair in push-pull with a variable current source?
Thanks! Rich
SATAAOM?
Ahh, why DC isolated? How about the JFET gain trick in AoE.
Yep, not a bad idea. Look up amplitude-controlled marginal oscillator, see if there's anything out there on that. In the meantime I can send you some papers and drawings of its use in NMRs and other types of Q-sensing LC oscillators.
VCA IC.
D from BC
YEs.
Such a thing as an opto mosfet. :-)
Well, I don't actually know if it's supposed to be DC isolated or not - this client hasn't told me much about the project yet, but I want to hit the ground running when he does. Clearly, if it doesn't have to be isolated, then it's pretty simple. :-)
And, yes, I'm gonna have to pick up a copy of AoE for my very own. ;-)
Cool!
Thanks! Rich
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