extends https://forum.allaboutcircuits.com/threads/opamp-virtual-relative-ground-proper-use.126736/
http://chpsndtch.blogspot.com.ee/2017/02/op-amp-internal-ground.html
http://chpsndtch.blogspot.com.ee/2017/02/op-amp-internal-ground.html
i have done yet NO ANY real tests confirming the feature
nor do i know too much about this -- just that the Spice's mathematical op amp model hints such*** exists
http://chpsndtch.blogspot.com.ee/2017/02/op-amp-internal-ground.html
http://chpsndtch.blogspot.com.ee/2017/02/op-amp-internal-ground.html
i have done yet NO ANY real tests confirming the feature
nor do i know too much about this -- just that the Spice's mathematical op amp model hints such*** exists
