Connect with us

12v to 5v DC-DC converter hum

Discussion in 'General Electronics Discussion' started by codestaxx, Jun 20, 2015.

Scroll to continue with content
  1. codestaxx


    Jun 20, 2015
    Please forgive as I'm just getting back into electronics after a 13 year hiatus. I recently installed a 12v to 5v DC-DC converter from amazon

    I installed this dc-dc converter into my 07 HD Road King Classic to power a Miccus Mini-jack RX (bluetooth receiver) using 12v (switched) from my accessory plug under my seat.

    When I power on the device I receive a hum over my speakers. If I run the Miccus off of the internal battery- no hum. I tried various grounds, including the chassis ground bolts and straight to the battery to get rid of the hum. I initially thought it was a difference in the ground potential but obviously that's not the case.

    Is there something I can add to the circuit that would get rid of that noise?
  2. davenn

    davenn Moderator

    Sep 5, 2009
  3. cjdelphi


    Oct 26, 2011
    A ground loop isolator sounds like a fix (or a crap load of capacitance to filter out the switching going on)
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day