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Re: How to overcome brownout spikes (AT90S2313)

2007-09-12 by max.motor

Thanks Hein & Leon,

Yeh, I've used a simple 78L05. It might be to slow. Have you got a
partnr. of a quick version? Or would a suppressor be enough.

  I think swapping the 90s for a Tiny would be the easyest thing to do.
Aren't both ones (Tiny26 & -2313) pin compatible with the 90s version?

About the reset circuit, would it be like this?

+                      -
|           o--Reset   |
|----|<|----|   100n   |
|---[4k7]---|----||----|
|                      |

The input signals are already opto coupled. The output signals aren't
and that would be my next step. I wasn't for sure if it would give a
sharp signal. as soon a power FET has to dissipate it'll get very very
hot. I've got a To220 with a melted backside. (Yep, It's still alive)





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