I have repaired my 19" LCD screen by replacing the CCFL inverter board with a generic 12V inverter. I would like to control the Voltage to the driver board. I have a control signal that ranges from 100%=0.035v 75%=1.173v 50%=2.389v 25%=3.6v 0%=4.79v I intend to use an op amp to control the output. The max current of the 2 driver boards is 1.75amps when connected to 12V. I know how to connect the op amp 5Vto A+, sig across 1k res to -A 12v to v+ and 0 to V. I cant seam to figure what device to control the 12v from the output. An LM317? or what? Please help.
Thanks
Anthony
Thanks
Anthony