Bipolar psu alternative.

[dist]

Would this work? Making an xxV bipolar power from an DC source.

Is it possible this way to power an op amp with 5-6v bipolar instead of the 4,5v we get with the resistor and cap method commonly used?

[R.G.]

Would this work? Making an xxV bipolar power from an DC source.

Maybe. It depends on what you mean by 9V+ and 9V-. If that's a total of 9V between the two points, no, it will not work. If it's a total of 18V, then yes, the circuit you show would provide +/-5V. You probably need two resistors, one in parallel with each input cap.

Two regulators, each 5V, cannot make 10V out of only 9V if the input power is a total of 9V. Not enough volts. Regulators always make less than the number of volts they're provided on their input. In the case of the 78xx and 79xx family, about 2V less; that means you need at least +/-7V (total of 14V) to get +/-5V out as shown.

[QSQCaito]

Any reason to consider doing this??

Or it was just a crazy idea you got and wanted to see if possible?

[dist]

Thanks RG. Thats what i suspected. But i t would have been fun if id had worked.

Yea DAC. Only an crazy idea