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Unread 28-01-2012, 11:14
EricVanWyk EricVanWyk is offline
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Re: Banebots RS-775 Case Short

Al, I'm trying really hard not to be rude, but the math simply does not hold up. It looks like we'll have to agree to disagree unless you can provide evidence to support your theory that the UVLO fires before the PTC. I still believe it is behaving as it is designed to and how the math indicates it must.

Don't get me wrong, I understand what you are driving at. It is a perfectly valid theory, it just doesn't hold up in this situation. For this system, the current/time profile to trigger the PTC is much much smaller than the current/time profile to trigger a UVLO: On the order of 100-750x smaller, depending on the shape of the pulse.