FreeLists / si-list / [SI-LIST] Re: Resistor Calculator

["Martin Euredjian" <martin@xxxxxxxxxxxxxx>]

From: PYHTILA,JOHN (HP-Cupertino,ex1)

> I am looking for a tool to give standard value resistors to use when =
one
> wants a certain ratio between two resistors.

John,

Funny coincidence ... I needed exactly that while trying to optimize
component values for a design.  Couldn't find it, so I wrote one.

"DividerCalc", as I call it, is restricted to a two resistor divider at =
the
moment.  It takes an input voltage, a desired output voltage and an =
output
voltage tolerance (% or volts).  It then allows you to select the use of =
the
5% or 1% resistor value tables for each of the two resistors.  You can =
also
fix either resistor to a desired value (say you want the upper resistor =
to
be 10K).  The program presents a table with every resistor combination =
that
produces an output voltage within the desired tolerance.  The table can =
be
cut and pasted into Excel for further work.

Is this the sort of tool you need?


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Martin Euredjian
eCinema Systems, Inc.
voice: 661-305-9320
fax: 661-775-4876
martin@xxxxxxxxxxxxxx
www.ecinemasys.com



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