how fine and coarse works logically inside AC voltage source?

Discussion in 'General Electronics Chat' started by rocon123, Dec 29, 2015.

  1. rocon123

    Thread Starter New Member

    Jun 26, 2015
    I am using AC voltage source. i have seen there is fine and coarse tuning available on interface. I am making an inverter now. I am wondering for inside logic for this fine coarse mechanism. help.
    Last edited: Dec 29, 2015
  2. sailorjoe


    Jun 4, 2013
    You can expect that the two adjustments are just two different variable resistors, one with a wide range, and the other with a small range. They could even be placed in series in a circuit that controls the output voltage. Then again, there lots of other ways to do it.