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Buddi

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Posts posted by Buddi

  1. 230V/1000W AC dimmer

    in Inventive/New Ideas

    Posted

    That may be the reason then...thx for showing it to me...
    Anyway as I mentioned it has some issues still...

    1. Very visible flickering once the bulb is given the full power
    2. Limited dimming range: The bulb dims...but I expect it to dim much more when I vary the resistance...

    I'm trying to find a way control the level of gate

  2. 230V/1000W AC dimmer

    in Inventive/New Ideas

    Posted

    that is something that i also couldnt understand... but it worked... ???
    the circuit didnt work until i decided to put 2 vaiable resistors for both R5 and R6 just to test with different values...

    And now I have left the circuit as that... yep, it cannot make any different theoritically, but it did...

    Buddi

  3. 230V/1000W AC dimmer

    in Inventive/New Ideas

    Posted

    Guys,

    I think I foud something...I did some analysis with the oscilloscope and found out that the cap. and the R6, R5 resistors that should determine the output does not work properly... then i did a slight modification by interchanging the R5 and R6 and now the dimmer is working...  :D

    Now two small things to sort out...

    1. When I vary the variable resistor the illuminance is increaesd and right at the very end there is a slight dimming that occurs after the bulb has reached the full illuminance...

    2. There is a slight flickering of the output when put to the full power 

    What do you guys think of these...???

    Buddi

  6. 230V/1000W AC dimmer

    in Inventive/New Ideas

    Posted

    Hi,

    I'm working on a project where I'm desigining an AC dimmer (230V/1000W) with Electro magnetic compatibility. My idea is to involve IGBTs or MOSFETs instead of more conventional triacs...

    Do you think that this would be a good idea?

    If you have prior experiences please share...

    Regds,
    Buddi

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