Need help...

Discussion in 'The Projects Forum' started by idleup, Nov 25, 2013.

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  1. idleup

    Thread Starter New Member

    Nov 24, 2013
    7
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    I have modified a circuit that I posted previously. I am trying to use a 5vdc output from a controller (which is protected) to reverse polarity on a 110vdc load using a DPDT relay as an H-Bridge. Can you guys review it and tell me if it is okay?

    Specifically here are my questions:

    1. My last thread was closed to a violation of TOS based on how the LED was connected. Does this new design correct that problem?

    2. Do I need a diode across the coil?

    3. How can I protect the relay? (my first one got ruined somehow but am not sure how, I want to make sure it doesnt happen again)

    The relay used is this one: http://www.digikey.com/product-sear...us&keywords=PB1059-ND&x=13&y=19&formaction=on

    The load that the christmas light strand pulls is 110mA @ 110 vdc

    Thanks.

    [​IMG]
     
    Last edited: Nov 25, 2013
  2. #12

    Expert

    Nov 30, 2010
    16,278
    6,789
    No, You have made exactly the same mistake, and this is one of the reasons plugging LEDs into a wall outlet is not allowed on this site. You don't even recognize what the mistake is, so you shouldn't be trying to work with this.
     
  3. Wendy

    Moderator

    Mar 24, 2008
    20,765
    2,536
    I am closing this thread. If you try to post it again you will be banned.
     
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