Rectifier VI Formulas

Discussion in 'General Electronics Chat' started by R!f@@, Mar 15, 2015.

  1. R!f@@

    Thread Starter AAC Fanatic!

    Apr 2, 2009
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    Hey Guys.
    I got the attached pdf about the Secondary Rectifier formulas for V & I.
    Can any one confirm the formulas are correct.
     
  2. Papabravo

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    Feb 24, 2006
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    Are you unduly suspicious for some reason?
     
  3. R!f@@

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    Just to be sure.
    It will help to avoid certain unduly suspicions
     
  4. Papabravo

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    Feb 24, 2006
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    I should have been more precise. Do you have a reason to suspect any of the formulas on the page, or do one or more of them just look wrong for some reason.
     
  5. ronv

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    Nov 12, 2008
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    I have always used that page to derate transformers. I hope it's right. :rolleyes:
     
  6. R!f@@

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    I wanted to use all of 'em all the time so I need advice.
     
  7. Papabravo

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    I would say use it until you have a reason not to use it. I'm retired and I don't have the patience to grind through the analysis. If it makes you feel any better I didn't see anything that jumped out at me as wrong.
     
  8. R!f@@

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    Fair enough.
     
  9. MrChips

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    Oct 2, 2009
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    Those formulas are not accurate. However I have been using them as a guide as long as I can remember building power supplies. They are just that (guides) and are good enough for most purposes.

    Also Hammond transformers are rated conservatively, i.e. the rated voltage is for full load current.
    I have found transformers from a certain store R.S. to fall short of the stated specs.

    The moral of the story is - not all transformers are built the same.
     
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  10. R!f@@

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    That is also fair enough.
     
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