I was trying to learn about op amps but I am confused obout something. the sites I looked at say I need a -12V supply.
Now I have a power supply an AC adaptor for something. the ouput is 12v. Is what I have +12 volts and a ground? or is the ground actually -12v?
Also during my search to learn about opamps many of the circuits schematics Showed a sine wave on the input and how it changed on the output. This isnt an actual AC sine wave is it.
Now I have a power supply an AC adaptor for something. the ouput is 12v. Is what I have +12 volts and a ground? or is the ground actually -12v?
Also during my search to learn about opamps many of the circuits schematics Showed a sine wave on the input and how it changed on the output. This isnt an actual AC sine wave is it.