[SI-LIST] Re: inrush current

Santhosh, Inrush is the result after accounting for the:  power 
source, interconnect, input, and reflected output impedance versus 
the power source voltage.  But more to the point, for any substantial 
input capacitor, the inrush will be much more than connectors can 
safely tolerate.  Some form of active soft-start or at a bare minimum 
NTC thermistor limiter is called for on all power systems of any 
significant wattage.  Once you enter the realm of soft-start, you 
have many options to address the trade-offs that matter in your system.

Steve.
At 04:22 PM 10/18/2006, santhosh.etavalath@xxxxxxxxx wrote:
>Hi,
>How do we generally calculate the inrush current in a dc-dc 
>converter, formula? We will have inductor and bulk capacitors at the 
>input side of the regulator.
>regards
>santhosh
>
>
>
>
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