tomroth
Newbie level 1

Hi all!
Just a general question. Many Op-Amps require positive and negative voltage to operate properly. What is the best way to generate the negative DC? I used a 555 timer with a bunch of resistors and capacitors to generate negative DC and sent that to a 7905 regulator to get -5 VDC, but that was a bunch of work. Any suggestions for an easier solution?
Thanks!
Tom
Just a general question. Many Op-Amps require positive and negative voltage to operate properly. What is the best way to generate the negative DC? I used a 555 timer with a bunch of resistors and capacitors to generate negative DC and sent that to a 7905 regulator to get -5 VDC, but that was a bunch of work. Any suggestions for an easier solution?
Thanks!
Tom