3-port resistor
3-port resistor
(OP)
Hello all,
Hope this is the right forum for this question. I have a resistor with one input terminal and two output terminals. At first glance, I thought the device is a power splitter (or combiner), but it is not characterized as one. So, what type applications would a three terminal resistor be used to terminate a line, if any?
Thanks
g114
Hope this is the right forum for this question. I have a resistor with one input terminal and two output terminals. At first glance, I thought the device is a power splitter (or combiner), but it is not characterized as one. So, what type applications would a three terminal resistor be used to terminate a line, if any?
Thanks
g114
RE: 3-port resistor
TTFN
RE: 3-port resistor
These are used to very accurately measure temperature, and the third (Kelvin) connection is used to compensate for the resistance of the wiring between resistor and temperature measurement circuit.
It may not actually be a platinum RTD, but that would be my first guess, from what you heave described
RE: 3-port resistor
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: 3-port resistor
TTFN
RE: 3-port resistor
no dedicated input or output terminal.
I suspect this is a wirewound power resistor with an
adjustable tap; the two ends are two of the terminals and the third is a clamp.
Plesae read FAQ240-1032
WEB: <http://geocities.com/nbucska/>
RE: 3-port resistor
Thanks to all that responded!
RE: 3-port resistor
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: 3-port resistor
RE: 3-port resistor
Sometimes! High power current sensing resistors with a Kelvin connection are not interchangeable - the power terminals are designed to carry full load current, while the sensing terminals are typically rated for far less current. Getting it wrong lets the smoke out.
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