Re: 12 volt power source?

On 12/22/2007 11:18 PM Ray Haddad spake thus:

On Sun, 23 Dec 2007 08:01:53 +0100, I said, "Pick a card, any card"
and "Klaus D. Mikkelsen" <er.du.saa.klog@xxxxxxxxxxxxxxxx> instead
replied:

Ray Haddad skriver:

By definition, those are parts of a regulator

No, that's what is called an unregulated power supply.

A regulated power supply contains an active omponen thet regulates the
output voltage and/or current.

http://my.integritynet.com.au/purdic/power1.html
http://www.allaboutcircuits.com/vol_3/chpt_9/1.html

They're all part, Klaus. Try building a regulated power supply
without those. The wall cube forms the first part or a chain.

What a lame-ass answer.

But I see what you've been doing: playing with semantics, all to avoid owning up to your being totally wrong in your arguments so far.

Yes, a wall wart can form PART of a REGULATED power supply, IF the regulating part of the circuit is inside the thing being powered. But BY ITSELF, the wall wart is (always, in my experience), UNREGULATED. To put it more precisely, any power supply that only contains a transformer, rectifier and filter is UNREGULATED by itself. Anyone reading my many previous posts (except, apparently, you) would have gotten that by now.

And yes, we know (or at least I do) that zener diodes are used as voltage regulators. But as I said, I've never even seen a zener in the many wall warts I've dismantled, meaning that they're totally unregulated.
.

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