Alt-BEAM Archive

Message #11324



To: beam@sgiblab.sgi.com
From: "Richard Caudle" richard@cqc.com
Date: Fri, 3 Mar 2000 15:35:55 -0500
Subject: [alt-beam] Re: Current draw questions...


Hi Wilf!

Thanks fotr the input! The reason that I asked was that the reading I was
getting started out at one value and then dropped to a lower value. It
seemed to be pretty low, so naturally I thought that I muffed it. :)

The test was using a variable bench supply set as low as I could get it. I
hooked the 0V lead to the cap, the black lead of the meter to the pos cap
lead and the red probe to the +V of the supply. I then turned the fine
current adjustment up until the cap started charging. The reading at that
point was 20.31mA. After about a half minute it dropped to just over 15mA.
The robot was operating the whole time that I was recording values, btw.

Would this be representative of the overall system current draw? I'd hate
to tell folks that it operated at the wrong level!

Thanks!

Richard



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