unbalanced bipolar supply

[Dimitree]

Hi everyone
I'd like to know what problem there will be if I would use a supply with +16V and -14V, with reference at 0V in an opamp circuit. The supply comes from a charge pump, it works good except for this unbalanced output. Should I add a voltage divider to balance the 2 output? 2 zener? or I can stay with these voltages?
many thanks

[petemoore]

  She's following the rules at all times.
  Changing the circumstances of the circuit doesn't change the rules, but can allow you to make electrons do "X".
  A 16v/14v offcenter biased opamp will 'work', I'll assume this is what you want to try for your circuit.
  Suggestion: creating the conditions that make her electrons in the supply circuit provide a balanced split supply.

[JKowalski]

It would just give you an unbalanced headroom, if you care about that.

I.E. you can't amplify the lower portion as much as the upper portion of the wave. So your positive supply's +2 volt difference will be essentially useless in most cases. Apart from that there are no problems.

[Dimitree]

thanks guys
would this difference in headroom between the 2 portion of wave sound uneven sometimes? or it is a really little detail?

Suggestion: creating the conditions that make her electrons in the supply circuit provide a balanced split supply.

thanks for the suggestion, but sorry I didn't get what you mean 

[PRR]

If you need to make 15V peak waves, then the 16V side might, the 14V side sure can't.

This is a guitar-pedal chatroom. Most signals are more like 1V. You may be running higher levels; or you may just have over-built. I do NOT think a 14V/16V difference matters in 99.9% of audio circuits.

I leave that 0.1% weasel-room because I have seen circuits which "assumed" that the common was exactly halfway between the rails. They are quite rare because they are too fussy.

[Dimitree]

perfect, then I'll stay with that