Electronics > Beginners
Virtual ground push-pull
iMo:
1ohm ESR with 2x47u caps.
iMo:
Rail Splitter v2
Vgnd = 12V, 5.7uVpp ripple
PS: with the currents and voltages as in this simulation I would use beefier transistors..
iMo:
And finally the Rail Splitter v3.
Does not work with all opamps (ie with LM358)!
V3A is with emitter protection resistors. The higher the emitter resistors the larger the Vg "ripple".
mikerj:
Just use one of the electrolytic cap models on the output, no need for separate resistors then. Stuff often oscillates if you use a perfect capacitor model in spice.
soldar:
As a curiosity I will mention that you can use a complementary pair audio amplifier as a rail splitter / virtual ground.
Any of these will do it
https://www.eevblog.com/forum/projects/classic-40w-audio-amp-with-discrete-components/
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