by "Alex" <apogosso@[EMAIL PROTECTED]
>
Apr 24, 2008 at 09:59 AM
"Alex" <apogosso@[EMAIL PROTECTED]
> wrote in message
news:_LYPj.4552$ko5.4107@[EMAIL PROTECTED]
>
> "Patrick Turner" <info@[EMAIL PROTECTED]
> wrote in message
> news:480F3ADE.856061D3@[EMAIL PROTECTED]
> >>
> > But ß cannot be 1.0 where R1 = R2 ( Ri = Rf ).
>
> Well,
> Ian defined beta as Rf / Ri. Within his definition his equation is
correct.
Sorry, beta= Ri / Rf as Ian defined it.
He did not specifically said that beta is a fraction of output voltage
applied to input. If he said so, then the beta should have been expressed
as
Ri / (Rf + Ri).
Regards,
Alex
>
>
