A Simple AC powered LED Lamp

Discussion in 'The Projects Forum' started by zmint, Dec 29, 2009.

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  1. zmint

    Thread Starter New Member

    Dec 29, 2009
    2
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    I purchased few simple LED lamps from market.They consume very less power but with a little problem, they are not durable enough. They only last a week or so. When I opened one of them It had this circuit.
    AC Powered LED Lamp.jpg
    The problem is that the Capacitor (100 uF 35V) in the circuit Pops Up (Bust) after continues use. I tried changing the damaged Cap. C2 to another value 100 uF 63 V, (Pls. note that I only changed the volt rating 35 to 63 not the uF rating i.e. 100 uF) but the LEDS didn't glow.:confused:

    Can someone please suggest me the value of the Cap (or some other modification in the circuit), so that the lamp keeps on working without the Cap being busting, even after prolonged use.

    I am open to all suggestions.

    Thanks
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,649
    2,348
    Hello,

    Direct mains powered things are not alowed here.
    The possibility for lethal failure is there.

    Greetings,
    Bertus
     
  3. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    That is correct - only transformer isolated circuits do not present a lethal shock hazard.

    No capacitor current limited circuit can be made safe.
     
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