+9v and -9v from one 9V battery!

Peter_wadley

New Member

• Mar 24, 2007

• #1

I don't know if there is a linking rule for this forum but I wanted show others who maybe intrested in quick and easy bipolar setups...

**broken link removed**

This can be used to power bipolar op-amps

Peter W

 

ericgibbs

Well-Known Member

Most Helpful Member

• Mar 25, 2007

• #2

hi peter,

Thanks for the link, however, the circuit is in common usage.

I was interested to see on the link, a guy claiming copyright on a circuit lifted
from the Maxim MAX1044 datasheet!.

Regards

 

Hero999

Banned

• Mar 25, 2007

• #3

It's also possible with a 555 but you loose some voltage.
**broken link removed**
http://www.csgnetwork.com/ne555c1.html

 

audioguru

Well-Known Member

Most Helpful Member

• Mar 25, 2007

• #4

Hi Peter,
Any opamp will amplify AC signals when it has only a single supply voltage if its input DC voltages are about half the supply voltage, and coupling capacitors are used like these circuits show:

 

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