Protecting IC pins

[BrownOut]

Hmmm.. it doesn't say. You can try e-mailing AD for an answer.

 

[ikalogic]

hm! i just thought of that: a TRIAC
https://www.electro-tech-online.com/custompdfs/2011/02/Z0107MN.pdf
wouldn't that solve it all? 600V isolation, easy turn ON using gate drive, and since i want to conduct only when generating, i can also easily turn off by stopping the gate drive and stop generating, this will turn it off. and one turned off, we have 600 V isolation. That seems perfect, the only downside, is the ~1V drop out..

Could you just back me up, am i correct there?

 

[BrownOut]

That might work, but only if the current falls below the sustaining current of the device. If you're generating some arbitrary waveform in which the current doesn't go to zery ( or very near to it ) then the triac will never turn off.

 

[ikalogic]

That might work, but only if the current falls below the sustaining current of the device. If you're generating some arbitrary waveform in which the current doesn't go to zery ( or very near to it ) then the triac will never turn off.

if the IC that is generating the waveform is put on High Z, that will stop current flow right?

 

[ikalogic]

This thread brings me to the interesting thought that it seems that the perfect solid state relay is still to be invented..

 

[BrownOut]

if the IC that is generating the waveform is put on High Z, that will stop current flow right?

Yes. That should work.

 

[BrownOut]

This thread brings me to the interesting thought that it seems that the perfect solid state relay is still to be invented..

It has already been invented ( see post #18 )