Other Parts Discussed in Thread: TPS7A39
1) Dual output voltage circuits with 79xx and 78xx are common and stable circuits. Somemanufacturers also suggest negative output voltage circuits with 78xx.
2) Is it possible do develop stable and effective dual output circuits by using two 78xx one with positive output settings other with negative output settings
e.g. 24 V DC input, voltage divider with two 100K resistors between +24 V and grd.
one 7812 with possitive settings and other 7812 wth negative settings.