I'm considering testing to build an inductor loaded Zen. I like simple though so I've been taking a peek on the opto bias of the J2, Baf Schade and the like. Would be nice not to have to fiddle with a pot =)
My question if this would work well enough for the lower mosfet too?
In my case I would use an Hammond 193V inductor as CCS and so there is no active CCS to match the lower mosfet to, it just needs to pull close enough to the desired current.
See example circuit:
My question if this would work well enough for the lower mosfet too?
In my case I would use an Hammond 193V inductor as CCS and so there is no active CCS to match the lower mosfet to, it just needs to pull close enough to the desired current.
See example circuit:
Attachments
In that particular circuit the opto will be modulated by the signal, and not
very linearly at that, so you would want to do something like put a capacitor
across the bipolar transistor and place resistance between the collector and
the signal input.
Fiddling with a pot is easier....
very linearly at that, so you would want to do something like put a capacitor
across the bipolar transistor and place resistance between the collector and
the signal input.
Fiddling with a pot is easier....