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IndustryArena Forum > CNC Electronics > CNC Machine Related Electronics > Selecting the right bridge rectifier
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  1. #1
    Join Date
    Dec 2004
    Posts
    14

    Smile Selecting the right bridge rectifier

    I am going to build a DC unregulated power supply. Came across an old post where Kipper attached a link to. http://www.k7mem. This seems to be a good calculator for the uneducated like myself. Started with the 12V 8A transformer I have and plugged in the numbers and came up with about 17VDC, which would work fine for me. Not sure about the recommended bridge rectifier, it calls for 16A 35V. I found a couple of rectifiers in my junk drawer one is 15A 100V the other is 25A 100V. Would either of these work for my PS? I know that a rectifier doesn’t cost much, I do recycle when possible. I would like to thank you in advance for your continued cooperation.

  2. #2
    Join Date
    Dec 2003
    Posts
    24220
    Either would work, but go with the 25A to be on the safe side if you already have it.
    The 16A rating most likely has a safety factor built in.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

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