I am working on a PCB Layout where I have a sensed resistors to measure the current. When I read in internet, they mention as kelvin connections. Is sense connection and kelvin connection the same. Please, suggest any document for this kind of routing.
----------------------------
Response 1:
The Kelvin connections across a shunt resistor ( used to measure current ) are actually sensing voltage. Or more accurately, the difference in voltage between the 2 terminals. This is usually quite small, so try to keep the length and width of the 2 tracks the same all the way to the IC ( probably a Diff Amp ).
Do NOT use a plane layer.
Response 2:
A Kelvin connection is a means of making precision electrical potential contact with a current carrying component or reference point in such a way that eliminates or greatly reduces the effect of contact resistance.
Response 3:
Response 4:
There would be two GND paths for this resistor. One is main return and one more you're routing it differently with other pin of shunt to comparator from the middle of shunt. Do connect the differential GND signal to plane directly. It should terminate only at SHUNT end with good no. of via
]]>
0 Comments