[Diy_efi] Re: Looking for circuit to turn transfer pump off at

[Brian Dessent]

(oops, hit send accidently)

to turn ON and would have to drop past 1.950V to turn off.  There's some
discussion of this in this application note:

http://www.national.com/an/AN/AN-74.pdf

You will usually see hysteresis explained using a graph of output versus
input, with lines with arrowheads indicating the direction of
transition.  It makes a lot more sense then trying to explain it in
words.

Brian

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