If a circuit just calls for something like a 1 Ohm resistor, with no other
info, would it be bad to use a Current Sensing resistor there?

What would be the best way to approach looking up one to get, when no
other
info is oprovided at to type or brand?

If a circuit just calls for something like a 1 Ohm resistor, with no other
info, would it be bad to use a Current Sensing resistor there?

What would be the best way to approach looking up one to get, when no other
info is oprovided at to type or brand?

TIA!

- Kris
Pick the most stable one, like the current sense resistor.

If a circuit just calls for something like a 1 Ohm resistor, with no other
info,

"Kris Krieger" <me at (no spam) dowmuff.in> wrote in message
news:rq6dnR0N359Of-bVnZ2dnUVZ_rLinZ2d at (no spam) earthlink.com...
| If a circuit just calls for something like a 1 Ohm resistor, with no
| other info, would it be bad to use a Current Sensing resistor there?
|
| What would be the best way to approach looking up one to get, when no
| other info is oprovided at to type or brand?
|
| TIA!
|
| - Kris

Pick a resistor that can handle the power, this usually turns out to
be a 'Current Sense Resistor' or "Current shunt" if its more than a
watt or 2. They are more stable over temperature. But if thats not
important in your circuit then a metal film at the proper rating would
do.

Cheers

Kris Krieger wrote:
If a circuit just calls for something like a 1 Ohm resistor, with no
other info, would it be bad to use a Current Sensing resistor there?

What would be the best way to approach looking up one to get, when no
other info is oprovided at to type or brand?

TIA!

- Kris
Pick the most stable one, like the current sense resistor.

On Jul 15, 10:20 am, qrk <SpamT... at (no spam) spam.net> wrote:
On Mon, 14 Jul 2008 18:35:12 -0500, Kris Krieger <m... at (no spam) dowmuff.in
wrote:

If a circuit just calls for something like a 1 Ohm resistor, with no
other info, would it be bad to use a Current Sensing resistor there?

What would be the best way to approach looking up one to get, when
no other info is oprovided at to type or brand?

TIA!

- Kris

You need to know what sort of current will be passing thru the
resistor. From there, you can determine the power rating of the
resistor. It's overkill (size, cost) to use a 100W resistor if you
only need a 0.1W rated unit.
Mark

I had the pleasure of servicing an electrically powered
boat out in the boonies of Muskoka.
I needed to measure the current draw from car batteries,
so I cut a bunch of stove wire to short lengths and
crimped them together with good terminals at each
end to make a high watt .1 or .01 resistor, it worked
well.
The problem is to solve for a 100 amp draw without
too much of a voltage drop, so a 0.01 ohm scoffs
1V, and 100W. Anyway, it's fairly easy to make a
short length of Nichrome wire cable, economically.
Ken

REminds me of that old TV show, "McGiver" <?sp?

Personally, I
could do without the plot, and just go with the "if you're in this
situation, here are some ways to get out" part

"Kris Krieger" <me at (no spam) dowmuff.in> wrote in message
news:77CdnQxE4vNwnODVnZ2dnUVZ_uudnZ2d at (no spam) earthlink.com...
REminds me of that old TV show, "McGiver" <?sp?

MacGuyver.

Personally, I
could do without the plot, and just go with the "if you're in this
situation, here are some ways to get out" part ;)

You might try Survivorman or Man vs. Nature, on Discovery.

Tim