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From: "Tom Faloon"
Subject: Re: Hard disk inductance, how to simulate/measure?
Date: Thu, 17 Oct 2002 17:45:42 +0100
NNTP-Posting-Date: Thu, 17 Oct 2002 16:47:13 +0000 (UTC)
X-Newsreader: Microsoft Outlook Express 5.00.2615.200
The little lost angel wrote in
> If I didn't get it wrong, all motors causes/have inductance.
> So how do I measure the inductance of an hard disk drive or PC fan,
> and what do I use to simulate it if I want to make a load tester?
> I understand inductance can be created/simulated using a inductor coil
> (or something like that) but it seems to me that unless the coil field
> collapses/re-inflate there would be no effect, right? Thus if I use a
> DC power supply on that inductor, it wouldn't show anything unusual,
> Also, what is difference/effect on a DC power supply for a device that
> draws 20W resistive power and one that draws 10W resistive, 10w
> inductive? Or is there no such possibility?
> L.Angel: I'm looking for web design work.
> If you need basic to med complexity webpages at affordable rates, email me
What do you actually want to do? Or is this just an interesting discussion ?
If you could specify a problem, I'm sure you would get a better response.
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