I got a sine wave from an STM32 DAC.
Its voltage is 2.64 V. I wanted to amplify it. I used this schematic. Its gain is 4.3. I got 11.20V output of the op amp but the output current is 0.13 mA. I decided to drive a transformer with the output of op amp but the power is too low to do it.
Do you have an idea?
Some people say it is not possible to increase current with constant voltage but I don't know if that's true or not.