When you work with op amps and signals a lot you'll find yourself in need of a negative supply rail. Now if you're like me and don't have an expensive bench top power supply, or if your circuit needs to be powered with one single battery. Then this little circuit comes in real handy.
It basically splits the source voltage in half and uses one for the positive rail and the other for the negative rail. It also creates a virtual ground point, which is ofcourse needed.
Leds are there for demonstration purposes.
