Re: Zero Crossing Strobe & possible kits?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jan Wagner by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jwagner-at-cc.hut.fi>


> The replacement part is an Atmel T2117, which just came onto the market late
> 1Q this year.  It will need a couple of resistors and a diode, but performs
> the same function as the CA3059, and should reach general availability later
> this year. For details see
> http://www.atmel-wm-dot-com/upload/doc3a07f81ad7ab3.pdf, in particular the "Fig
> 10. power switch" circuit which is very similar to the circuit needed for
> our application, except that we need to drop the photo-diode and tweak the
> resistors so it is always on.  

I may be mistaken, but, you want a controlled zero voltage crossing
switching for inductive loads, right?
Maybe the very-standard-stuff MOC3041 / 2 / 3 could be up to this
application: it contains a triac drive via ZVC detector and optoisolator.
 
The chip is readily available, and costs about 1.50 euro.

http://alds.stts.edu/datasheet/Opto/MOC3041REV0.PDF

Just a thought. :) Maybe it is of help?

cheers,

 - Jan

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