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Emitter follower differ GND potential

J

Jerry Norris

Jan 1, 1970
0
I have generated a 20Hz sinewave at 5Vpp. The circuit runs on 6V
battery power with a normal earth reference at 0V.

To obtain higher current, I would like to feed this into a darlington
emitter follower that has +12V and +6V rails. Yes, I do need it that
way.

In terms of circuitry, how do I deal with the lack of a common
"ground" potential?

Jerry Norris
 
J

Jerry Norris

Jan 1, 1970
0
Are you concerned with lack of Earth ground or are you concerned because you
have 0V, 6V, and 12V? Need more info.


The end result is intended to be a symmetrical output swing between
the +12 and +6 volt rails of the darlington.

What I need to know is how to input to it a 5V signal with its 0V
ground reference.

IOW the input 0V needs to be shifted up to +6V to match the higher
"ground" potential in the darlington.

Jerry Norris
 
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