Re: Which MOSFET / IGBT can afford 5A current normal operation and 40A current at 1-2 seconds?

From: Nico Coesel (nico_at_puntnl.niks)
Date: 11/29/04 

Date: Mon, 29 Nov 2004 18:13:10 GMT

swear_terence@hotmail.com (Electronic Swear) wrote:

>The DC motor is operated at (rectified) 220Vac.
>It is for food juicer. We don't want to use current
>sensing because the motor start-up current is very large.

>The motor is for masss production and look for safety protection
>as well. If use fuse on protection, it is very inconvenient for
>exchange. We want some active protection rather than passive components.

Sorry, but the way I see it, current sensing is even better. Like I
typed before, it will give you a soft start and longer switch life for
free, it will provide better protection against fire (a stall detector
is always off board) and it will cost less. 

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