LED Dimmer - What should be used for Switching?

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  1. - 22nd September 2012, 05:33 #6
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    sayzer
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    Default Re: LED Dimmer - What should be used for Switching?

    Quote Originally Posted by Ioannis View Post
    220x1,4=308Volt

    308-252=56Volt

    56volt*0.084mA=5Watts. This must be dissipated not on the mosfet only but on a resistor too. Otherwise LEDs may get overloaded.

    Not much, but not efficient either.

    Also there will be live part if this is of concern.

    Ioannis
    220VAC * 1.27 = 279.4 Volt DC

    279-252 = 27

    27 * 0.084 = 2.26 watts

    not bad with your approach.
    Last edited by sayzer; - 22nd September 2012 at 05:36.
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