I have attached two images, in which I used the method of the virtual ground.
The output of the opamp is exactly what I want in 2 different cases: a sinewwave from 0V to 3V and the other one a sinewave from 0V to 20V, all of them starting with a sinewave from -10V to 10V.
The simulation output is exactly what I want, but I don't understand how does a DC voltage of 5V can move up the wave of 10V and the same for the other case in the other picture!
Do you think that is correct the simulator that I use (Tina TI) ?
Thanks!
The output of the opamp is exactly what I want in 2 different cases: a sinewwave from 0V to 3V and the other one a sinewave from 0V to 20V, all of them starting with a sinewave from -10V to 10V.
The simulation output is exactly what I want, but I don't understand how does a DC voltage of 5V can move up the wave of 10V and the same for the other case in the other picture!
Do you think that is correct the simulator that I use (Tina TI) ?
Thanks!
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