AVR-Chat

In this mode, the current capacity depends on a whole bunch of things.  
Thermal mass, length, heat sinking capability of the end-terminals,  
melting point of the alloy are just a few. You might be able to model  
it with some sort of finite-element simulator but you would spend a  
lot of hours doing that and what you got would be hard to validate.

Jim Wagner

On Feb 19, 2009, at 5:28 PM, David VanHorn wrote:

> > I would guess that for short pulses like that, it would be at  
> least 2X DC
> > but that is just a guess.
>
> I'm operating at roughly 1kA
>
> The shunt is rated at 50mV/25A, and my last test shot read 5.5Vp with
> a risetime of about 200uS and hold time of 750-ish uS.
>
> The shunt is suggesting 2750A, but I think it's too inductive.
>
> 



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