| Re: Powersupply testing |
| "Josef Hartmut" <call_0815_4711@gmx.at> |
| 2007-01-29 01:11:54 |
Uriah wrote:
> I have the manual but it is from an Asian company and there is very
> little to it as far as examples on how to set it up.
>
> It doesn't have a reactance setting. I just wasn't sure how to
> factor
> that in when setting the resistance or if you need to consider that
> when working on an embedded style controller.
>
> It didn't cost that much. Around $450.00?
That's not much :-)
> The adjustables are Resistance, Current, Watts
> So I think I need to set the resistance that compares with the board
> the PS ususally is plugged into. So I just measure the resistance
> with my meter for the 12, 5, -5, 3.3VDC? I get quite a difference.
> Is that the correct way for the resistance?
No. You want to measure the peak current during startup on each
channel using a storage scope and then add 5% to it. Use this current
to calculate the resistance using ohm's law.
> I figure you just set the
> amps to what ever the PS is rated for. Or at least close to it?
A few percent higher, if possible and not hard limited.
> Then
> there is watts. Do I just leave that alone or set that set the
> Watts
> and leave the amps at 0?
I don't know the device. I only know you should polish your
electrotechnical basics :-)
--
Joe
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