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Thread: power supply circuit

  1. #16
    Gaston Okay
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    money is a big issue here. i have to build twenty of these. plus i already bought the transformers


  2. #17
    Hero999 Excellent Hero999 Excellent Hero999 Excellent Hero999 Excellent Hero999 Excellent Hero999 Excellent Hero999 Excellent Hero999 Excellent Hero999 Excellent Hero999 Excellent
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    Don't the place you bought them from accept returns?

    I do not answer private messages asking for help because no one else can: benefit from advice I may give or correct me if I'm wrong.

    Please ask on the open forum if you have a question and I'll be happy to help,
    if I know the answer.

  3. #18
    Bob Scott Excellent Bob Scott Excellent Bob Scott Excellent Bob Scott Excellent Bob Scott Excellent Bob Scott Excellent
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    Gaston. Like this:
    Attached Images
    Last edited by Bob Scott; 9th July 2007 at 10:11 PM.

  4. #19
    mneary Excellent mneary Excellent mneary Excellent mneary Excellent mneary Excellent mneary Excellent mneary Excellent mneary Excellent mneary Excellent
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    Bob Scott's solution is excellent.

  5. #20
    Bob Scott Excellent Bob Scott Excellent Bob Scott Excellent Bob Scott Excellent Bob Scott Excellent Bob Scott Excellent
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    Oh, I just thought that since most transformer primaries and outer secondary wires are not colour coded for proper phasing, that Gaston should measure the total secondary voltage once the circuit is built, and that it is ~48VAC. The circuit will work either way, it's just that wired the wrong way, the rectifiers will put out 60HZ DC instead of 120HZ. (or 50 instead of 100 in UK). Filtering is easier the higher the freq.
    Last edited by Bob Scott; 12th July 2007 at 03:57 AM.

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