Because *every* feature costs something ... design time, program memory,
software complexity, reliability, customer support, etc. Product
designers spend their entire career deciding which features to include
and which features to leave out, attempting to optimize features, costs,
reliability and time-to-market.
With specific regard to the Talon, it is almost certain that it uses
FETs that are rated well above the 60A system rating, probably twice
that rating. If so, the designer decided to spend a couple extra bucks
on the FETs, instead of relying on more complex software. Given that
the primary market is FIRST and the typical loads are under 60A, such a
design tradeoff is probably quite wise.
On 4/9/2014 9:58 AM, isaac goldman wrote:
Why dont they have current limiting? How expensive could that possibly be...
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