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Switch on zero current crossing

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Stephane38

New Member
Hi,

I use a perfect current source and I know the frequency. So I use a SW to close my switch each time the current cross zero and I can also controlling the Ton.
But now I want to use a random current source and I can't predict when the current will cross zero.

Is there a way to detect each time the current cross zero that will turn the switch on during a small period of time?

Thanks!
 

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crutschow

Well-Known Member
Most Helpful Member
You could use a low power comparator to detect the zero voltage crossing.
 
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