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Momentary power supply for doorbell

Discussion in 'Power Electronics' started by jameswi, Oct 4, 2019.

  1. jameswi

    jameswi

    2
    0
    Oct 4, 2019
    Is it possible to add a capacitor to a 16v doorbell transformer so that when the power goes off due to a momentary power outage/brown out, there is uninterrupted power going to the doorbell?
     
  2. Minder

    Minder

    2,870
    594
    Apr 24, 2015
    It is possible that your doorbell is AC, which eliminates the use of a capacitor, in any case that most likely would be good for one shot only, if DC bell, it might pay to look at a rechargeable battery backup.
    M.
     
    davenn likes this.
  3. jameswi

    jameswi

    2
    0
    Oct 4, 2019
    Hello Minder,

    Thank you for the reply. It is a 120v to 16v AC transformer. I was trying to avoid the battery backup route (UPS) because it is in an attic and Iā€™d prefer not to deal with battery replacement maintenance.
     
  4. Bluejets

    Bluejets

    3,505
    709
    Oct 5, 2014
    I usually simply knock on the door if the bell doesn't work.:)
     
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