Forum Discussion

maillemaker's avatar
maillemaker
Explorer
Oct 03, 2017

How to clean up 12V power for electronics?

Hi,

I have a very old (1990) Winnebago Warrior RV.

The converter makes "dirty" power and as a result the TV, when we are plugged into shore power, goes haywire. Runs fine on battery power.

To get around this, I plug it into 12V when we are on batteries, and I plug it into its wall wart when we are on shore power or generator.

This is kind of annoying though.

I do not want to go to the trouble of replacing the converter.

Is there a device that will take 12 VDC in and clean it up to provide clean 12 VDC out? If so I will simply wire the TV into the "cleaner" and problem solved.

Thanks,

Steve
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    Oct 03, 2017
    Why not solve two problems........

    *Clean up the DC
    *Provide better charging/maintenance of batteries


    REPLACE THAT OLD CONVERTER WITH NEW MODEL.......Simple/Cheap and effective!
  • time2roll's avatar
    time2roll
    Nomad
    Oct 03, 2017
    I know you don't want to replace the converter but that is the best solution.
    Your battery will perform better and last longer too.
  • MrWizard's avatar
    MrWizard
    Moderator
    Oct 03, 2017
    Well maybe
    You can buy DC to DC power converter/regulator

    What is the power rating of the TV, 50w? 100w

    Check out Drock DC power on eBay or Amazon you will want one that is 'buck' aka reduces voltage
    Or a Buck boost, one that does either reducing or increasing (you will be using Buck mode)
    A boost only will not work for your application

    Shore power converter charger voltage is always higher than 12v a k a 13 to 14+
    So a boost only won't do the job
    You need to knock the 13.6? Down to clean 12v,
  • jkwilson's avatar
    jkwilson
    Explorer III
    Oct 03, 2017
    Unless you are disconnecting the batteries when you are on shore power, you are running off the batteries all the time you are on 12V. On shore power, your convertor comes on to charge the battery. It is possible your convertor is so noisy it causes issues with your electronics, but a battery is a pretty good filter to remove the noise so it would have to be fairly significant.

    I'd be thinking that your convertor is bad.
  • maillemaker's avatar
    maillemaker
    Explorer
    Oct 03, 2017
    What about this?

    https://www.amazon.com/Voltage-Stabilizer-Protector-Regulator-DC10-36V/dp/B06Y5JHZG2
  • maillemaker's avatar
    maillemaker
    Explorer
    Oct 03, 2017
    I guess this is what I am looking for but it sure seems expensive:

    https://www.amazon.com/interVOLT-Voltage-Stabilizer-Regulator-Conditioner/dp/B00K67HQQS

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