I have found that using ammeters at low voltages, the input resistance will
interfere with the current measurement and give you a lower value. I use
precision 0.1 ohm resistors in parallel, and measure the voltage across the
resistors.
Best regards,
David.
David Gelfand
Approvals/Design
meter
BEFORE you connect your expensive meter.
Best regards
Gregg
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of rbus...@es.com
Sent: Monday, February 17, 2003 3:19 PM
To: emc-p...@majordomo.ieee.org
Subject: Measuring Power Supply Output Current
@majordomo.ieee.org on 02/17/2003 12:19:27 PM
Please respond to rbus...@es.com
Sent by:owner-emc-p...@majordomo.ieee.org
To:emc-p...@majordomo.ieee.org
cc:
Subject:Measuring Power Supply Output Current
I have been asked by my TUV office to measure the actual output current
for each
Hi Rick:
On the surface it seemed like a simple exercise of putting a DC current
meter in series with each of the outputs. Given that the current demand
for each of these outputs is dynamic, corresponding with the processing
activity, does it make sense to measure this output
a couple of
good shocks I was trained not to touch the 'scope chassis and earth ground.
Dave Cuthbert
Micron Technology
From: rbus...@es.com [mailto:rbus...@es.com]
Sent: Monday, February 17, 2003 1:19 PM
To: emc-p...@majordomo.ieee.org
Subject: Measuring Power Supply Output Current
I
I have been asked by my TUV office to measure the actual output current
for each of the 5-7 voltages on my PC power supplies. The purpose of
this is to baseline the maximum output current in terms of maximum
power, not instantaneous current, for each of the various motherboards
we use.
On the
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