Results 1 to 7 of 7

Thread: Basic Power Protection - newbie

  1. #1
    Join Date
    Dec 2020
    Posts
    13
    Post Thanks / Like

    Default Basic Power Protection - newbie

    Hi guys,

    Really enjoying this forum and learning so much but very much a newbie here. I've built a couple controllers and have my first pixels and strip up and running and have create a couple shows in xlights. Now I'd like to bring my DC props into the mix but am not ready to give up being able to very easily control them via many and various ways via smarthome IoT. I know there are options using MQTT but I already have many things wired and in place and am wondering if I could leave these devices hooked up to the DC power sources that they already run via IoT and simply ADD an additional pixel2things/espixelstick and power source or e1.31 control. To do that I'd need to understand a little more about power protection/isolation I think.. and you are about to see my very first schematic (so please go easy).

    Given the poorly and possibly improperly drawn schematic below which is supposed to depict a DC motor and two distinct 5v DC power sources, how can I protect each of the power sources in the extremely rare event both get power at the same time? Could I simply add inline diodes to stop any reverse flow?

    schem1.png

    Here are some of the devices (IoT controlled) - https://www.youtube.com/watch?v=G_PKdBSXT-g
    ...and my first xlights show (I have since learned how to use timing bars) - https://www.youtube.com/watch?v=5OhazVRG59c

  2. #2
    Join Date
    Jan 2021
    Posts
    96
    Post Thanks / Like

    Default Re: Basic Power Protection - newbie

    Optocouplers.

  3. #3
    Join Date
    May 2007
    Posts
    5,484
    Post Thanks / Like

    Default Re: Basic Power Protection - newbie

    Quote Originally Posted by 1pet2_9 View Post
    Optocouplers.
    What are you talking about? That's nonsense.
    Phil

  4. #4
    Join Date
    May 2007
    Posts
    5,484
    Post Thanks / Like

    Default Re: Basic Power Protection - newbie

    Quote Originally Posted by asago View Post
    Hi guys,

    Really enjoying this forum and learning so much but very much a newbie here. I've built a couple controllers and have my first pixels and strip up and running and have create a couple shows in xlights. Now I'd like to bring my DC props into the mix but am not ready to give up being able to very easily control them via many and various ways via smarthome IoT. I know there are options using MQTT but I already have many things wired and in place and am wondering if I could leave these devices hooked up to the DC power sources that they already run via IoT and simply ADD an additional pixel2things/espixelstick and power source or e1.31 control. To do that I'd need to understand a little more about power protection/isolation I think.. and you are about to see my very first schematic (so please go easy).

    Given the poorly and possibly improperly drawn schematic below which is supposed to depict a DC motor and two distinct 5v DC power sources, how can I protect each of the power sources in the extremely rare event both get power at the same time? Could I simply add inline diodes to stop any reverse flow?

    schem1.png

    Here are some of the devices (IoT controlled) - https://www.youtube.com/watch?v=G_PKdBSXT-g
    ...and my first xlights show (I have since learned how to use timing bars) - https://www.youtube.com/watch?v=5OhazVRG59c
    I think that two in-line diodes (one between each of the power supply +5 outputs and the motor) would be the easiest option.
    Phil

  5. #5
    Join Date
    Dec 2020
    Posts
    13
    Post Thanks / Like

    Default Re: Basic Power Protection - newbie

    Quote Originally Posted by P. Short View Post
    I think that two in-line diodes (one between each of the power supply +5 outputs and the motor) would be the easiest option.
    Thank you! I was thinking perhaps it might be that simple...

  6. #6
    Join Date
    Jan 2021
    Posts
    96
    Post Thanks / Like

    Default Re: Basic Power Protection - newbie

    Quote Originally Posted by P. Short View Post
    What are you talking about? That's nonsense.

    By optocouplers, I meant optocouplers. I don't speak in secret code.

  7. #7
    Join Date
    May 2007
    Posts
    5,484
    Post Thanks / Like

    Default Re: Basic Power Protection - newbie

    Maybe not secret code, but nonsense anyway. The original question was about power isolation - ensuring that there wouldn't be any problems if the outputs of the two supplies were at different voltages (or, indeed, that one was turned off), and optocouplers would have little, if any, role in addressing that issue.
    Phil

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •