220 Volt Dimmer/Speed Controller

Discussion in 'General Electronics Chat' started by Metalmann, Apr 28, 2013.

  1. Metalmann

    Thread Starter Active Member

    Dec 8, 2012
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  2. t06afre

    AAC Fanatic!

    May 11, 2009
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    Ouch! What are you trying to do? That dimmer can be used to control incandescent lamp and other resistive loads. A LED is a quite different kettle of fish.
     
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  3. praondevou

    AAC Fanatic!

    Jul 9, 2011
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    Since this seems to be phase controlled dimming I wouldn't use it for LEDs. I assume you mean the power LEDs for 110VAC with a built in AC/DC converter.

    If it was only LEDs and resistors it may work. I only see a pot, a diac, a capacitor like component and a TO-92 (SCR/triac?)

    After a quick look at digikey the lowest voltage forward drop for a TO-92 SCR is 1.2V. The TO-92 has a typical max power dissipation of 600mW if I'm not mistaken. For 100W that would be about 1W for the SCR. In other words, I wouldn't be so sure if it's good for continuously 100W... Depends on the SCR of course.
     
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  4. Metalmann

    Thread Starter Active Member

    Dec 8, 2012
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    I guess my main question would be....can it be used with 115V instead of 220V for LED dimming, motor control, etc.....as long as it would be under 100 Watts.?

    I don't understand why it couldn't be used for 115V.:confused:

    I have a lot to learn......;)
     
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