clintrubber
Well-known member
Hello,
I'm curious: could a non-gapped output TX with DC running
through its primary (like for BA283) be 'counter-magnetized'
by running a DC-current of suited polarity through an additional
winding ? (like a tertiary - some scaling of that current might be required)
I know this is wasteful w.r.t. current, but OK.
How about it ? Will it work ?
It will probably have been tried already (and abandoned... ?! :? )
Also: the countercurrent could be varied for controlling core-saturation,
as suggested here by I forgot who.
Thanks,
Peter
BTW, how could one easily see when there's adequate compensation ?
We could add fancy servo-like loops to copy the DC of the first winding,
but that might be too much.
I guess this needs some X-Y-scope-juggling, but are there other ways ?
I'm curious: could a non-gapped output TX with DC running
through its primary (like for BA283) be 'counter-magnetized'
by running a DC-current of suited polarity through an additional
winding ? (like a tertiary - some scaling of that current might be required)
I know this is wasteful w.r.t. current, but OK.
How about it ? Will it work ?
It will probably have been tried already (and abandoned... ?! :? )
Also: the countercurrent could be varied for controlling core-saturation,
as suggested here by I forgot who.
Thanks,
Peter
BTW, how could one easily see when there's adequate compensation ?
We could add fancy servo-like loops to copy the DC of the first winding,
but that might be too much.
I guess this needs some X-Y-scope-juggling, but are there other ways ?