That's how I read it.  And, yes: your formula is correct.

dwayne

At 03:01 PM 3/23/2015, Chris Roper wrote:
>I am very rusty in my analogue theory and came across this expression in a
>National Semi AppNote:
>
>R3 =3D R1 || R2
>
>Am I correct in thinking that it is saying that R3 is equivalent to R1 and
>R2 in parallel.
>i.e.
>
>1/R3 =3D 1/R1 + 1/R2
>
>Thanks
>Chris


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Dwayne Reid   <dwayner@planet.eon.net>
Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
(780) 489-3199 voice          (780) 487-6397 fax
www.trinity-electronics.com
Custom Electronics Design and Manufacturing

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