| Electronics > Beginners |
| Cabeling PSU for "best" precision? |
| (1/2) > >> |
| FriedMule:
I have a DC PSU (max 15V 60A, 0.1mV 0.1mA resolution with 5½ display and with 5V sense lines.) I know that shorter cables with bigger diameter is better but how much does matter, within reason? My question is most if I can place the PSU on the top shelve and run the cables the 10 feet "long" way round or I shall place the PSU on bottom shelve, 2 feet right above the work table? What thickness is best for the power/sense lines, shielded, twisted, more? My goal is not to compete with NASA but I would like to know that what I send is what I end up delivering. :-) |
| FriedMule:
Great advice, and thanks for the math! Before I did ask, I did think of making one cable with the sense (yes real s+ s- lines) but then I found out that a 60A maybe shall be about 4 awg, so wary thick or? That gave me the idea to run them separate so I can use whatever I need in awg and the sense lines parallel. I was thinking on using crocodile clamps. After your answer, am I not sure that it is any good? |
| FriedMule:
Thanks again, cant seme to find anything about voltage drop, would you please take a look? http://www.maynuo.com/downloadfile/2009102937237341.pdf 4x cable, so 6 wires in total? |
| FriedMule:
yes my bad:-) Ok thanks I'll ask! Is 10 wires better then 4 (2 power + 2 sense) ? |
| FriedMule:
yes that makes sense! :-) How would you terminate the cables, in alligator or? |
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