1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

DC Biasing

  1. Jan 12, 2016 #1
    Will this circuit work for maintaining a dc bias on the capacitors? Im under the impression that there is +4 v at point A; even if an emf charges and discharges the capacitors. I worry that current will flow into the battery. dc bias.png
  2. jcsd
  3. Jan 12, 2016 #2


    User Avatar

    Staff: Mentor

    It looks basically OK, but delete the "-4V" notes, since the outsides of the caps are connected to ground ("0V"),

    The center tap will be biased at 4V, and the outsides of the windings at the caps will have 4Vdc plus an AC component from the transformer action.
  4. Jan 12, 2016 #3
    Thank you so very much sir. You've made my evening.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook