[AMPS] Blown TL922A... What to do?

[2@vc.net (measures)]

>
>measures wrote:
>>The grid protection circuits I am talking about are those that provide no 
>>protection because the transistor that interrupts has too low a current 
>>rating and it shorts during a glitch -- thereby affording no protection.  
>>
>Failure of that transistor to survive a glitch/arc/parastic/flash-
>over/whatever is a simple DC design fault that can be cured by a 10K
>resistor. 
>
A 10k-ohm resistor can prevent C-E shorts due to excessive collector 
current?

>I don't think that's a good reason to remove grid current protection for
>normal operation.

Replacing a shorted transistor with a fuse-R is hardly removing 
protection.  Shorted transistors afford no protection because they can 
not turn off.  
>
cheers, Ian

-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


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