It is possible to reverse the turn-on/turn-off sequence by using an IGBT instead of a triac. Search Google on "IGBT dimmer".
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It is possible to reverse the turn-on/turn-off sequence by using an IGBT instead of a triac. Search Google on "IGBT dimmer".
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IGBT have good advantage.. reducing lamp buzz, reducing the noise the AC line, and and, and... but if my memory is good they need to drive in DC... another Bridge needed.
What's best? It's up to you to decide.
Steve
It's not a bug, it's a random feature.
There's no problem, only learning opportunities.
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After these nice explanations above, some schematics would be very nice (including IGBT thingy).
"If the Earth were a single state, Istanbul would be its capital." Napoleon Bonaparte
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And that's why I suggested Google.Originally Posted by sayzer
I already cited a Microchip app note for triacs. There's an ST app note for an IGBT dimmer.
Last edited by dhouston; - 30th June 2006 at 12:31.
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It's assembler ... yesssss, but interesting !!!
here is a simple lamp dimmer working w/2 pushbuttons ...
follow the listing ...everything explained.
Alain
Last edited by Acetronics2; - 30th June 2006 at 13:45.
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Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
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IF there is the word "Problem" in your question ...
certainly the answer is " RTFM " or " RTFDataSheet " !!!
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