Problem in Capacitors Explode

Discussion in 'General Electronics Chat' started by munaveed2002, Feb 6, 2013.

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  1. munaveed2002

    Thread Starter New Member

    Sep 4, 2011
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    The two capacitors, C1 and C10 are exploding... dont know why..:(..
    replaced them 4 times. applying same ratings and since these capacitors are polar so, carefully soldering (means + with + and - with -). But couldn't get out of problem. also 10 Ohm resistance also gets damage at same time of exploding. Input are 240volts. and C1 and C10 are of 400v.

    Help...
     
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  2. BReeves

    Member

    Nov 24, 2012
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    Shorted diode(s) in the bridge letting AC get to the caps.
     
  3. ErnieM

    AAC Fanatic!

    Apr 24, 2011
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    What *peak* voltage will that create?

    Check the TOS here. Direct to line projects are not allowed.
     
  4. takao21203

    Distinguished Member

    Apr 28, 2012
    3,577
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    ? Transformerless power supplies are not allowed.

    Normally people building these SMPS circuits are experienced, it is not beginners stuff. Often as much as to know where to search for problems.

    And I think too it's a bad bridge.
     
  5. t06afre

    AAC Fanatic!

    May 11, 2009
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    It is a primary switched power supply. As I know this is still inside the cope of the forum, and the TOS. As we allow questions about light dimmers and linear power supplies build from start in this forum.
     
  6. Wendy

    Moderator

    Mar 24, 2008
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    Hello,

    I am closing this thread as it violates AAC policy and/or safety issues.

    Quote:
    6. Restricted topics.

    The following topics are regularly raised however are considered “off-topic” at all times and will results in Your thread being closed without question:

    • Any kind of over-unity devices and systems
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    • LEDs to mains
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