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Fotron Source FSP235-60GT 3.3v out of spec

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    #21
    Re: Fotron Source FSP235-60GT 3.3v out of spec

    There are usually a big resistor on the secodary side that always runs hot. I wonder if mosfet/transistor run too hot if there are failed low-esr caps (on the secondary side)..

    yanz : the vents are different but you know we are talking about different markets so who knows. better to get an esr meter and check these caps and the FJ over time and see what happens. also you have WG and Per has WX. maybe they change vent in all series? it is a pity to change something so characteristic of sanyo caps.
    @willawake: Yep, that was also what i thinking. About esr meter, i was thinking to send my caps to you.. Let see if i can find an esr meter in another town..

    why do you bend the leads like that? i dont recommend unless you are careful doing it
    They come already like that, apparently the shop need to cut the leg from the carton and bend it to put them in the shelf. The shop guys showed me a 3300uF 6.3V Sanyo WG plastic bags that looks similiar to your oscon bags. They already throw away the 16V bags though, but promised to keep the next for me..


    @Per Hansson: another question, is it safe to replace the 10uF, 47uf, 4.7uF, 22uF @63V or 5oV that usually found in the middle area to lower voltage rating (but same capacitance), example : 25V ?
    days are so short when you actually do something..

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      #22
      Re: Fotron Source FSP235-60GT 3.3v out of spec

      Originally posted by yanz
      @Per Hansson: another question, is it safe to replace the 10uF, 47uf, 4.7uF, 22uF @63V or 5oV that usually found in the middle area to lower voltage rating (but same capacitance), example : 25V ?
      That is not ok, there can probably be voltages in the 50v range there, better safe than sorry IMO (can always double check with a multimeter)
      "The one who says it cannot be done should never interrupt the one who is doing it."

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        #23
        Re: Fotron Source FSP235-60GT 3.3v out of spec

        Originally posted by yanz
        There are usually a big resistor on the secodary side that always runs hot. I wonder if mosfet/transistor run too hot if there are failed low-esr caps (on the secondary side)..
        That is correct, with failed or degraded capacitors the mosfets will have to work harder to keep the current clean; making them run very much hotter... Just as my "calibrated hand test" proved...
        "The one who says it cannot be done should never interrupt the one who is doing it."

        Comment


          #24
          Re: Fotron Source FSP235-60GT 3.3v out of spec

          Originally posted by Per Hansson
          That is correct, with failed or degraded capacitors the mosfets will have to work harder to keep the current clean; making them run very much hotter... Just as my "calibrated hand test" proved...
          So the inverter would have to be "ON" for longer to compensate for the losses?

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