[SI-LIST] Re: Resistor Calculator
- From: "Martin Euredjian" <martin@xxxxxxxxxxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Sat, 11 Jan 2003 02:25:34 -0800
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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