From: Lizard Blizzard
Subject: Re: Best way to power array of LEDs?
Date: Tue, 08 Oct 2002 12:58:16 -0700
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Bob Wilson wrote:
> You are absolutely right. This question about Voltage and LEDs just keeps
> coming up time and time again! You'd think that those posing it would take the
> trouble to learn the most elementary basics of what they are trying to work
> To make the principles perfectly clear, LEDs emit photons in an approximate
> ratio of the amount of CURRENT (hear that?...**current!!) that passses through
> them. Voltage isn't even in the equation!! The voltage that appears across an
> LED is a RESULT of the current that you are pushing through it, not the other
> way around!. Like any diode, this voltage (called the forward voltage) tends
> to be relatively constant, and relatively independent of the current. But
> (watch my lips closely, now!) the value of this voltage is basically
> irrelivant! Forget about it! Don't even mention the "V" word when dealing with
> There! Got that off my chest.
You're just like a politican.
How does one know if a politican is lying?
His lips are moving.
----------------(from OED Mini-Dictionary)-----------------
PUNCTUATION - Apostrophe
Incorrect uses: (i) the apostrophe must not be used with a plural
where there is no possessive sense, as in ~tea's are served here~;
(ii) there is no such word as ~her's, our's, their's, your's~.
Confusions: it's = it is or it has (not 'belonging to it'); correct
uses are ~it's here~ (= it is here); ~it's gone~ (= it has gone);
but ~the dog wagged its tail~ (no apostrophe).
----------------(For the Apostrophe challenged)----------------
From a fully deputized officer of the Apostrophe Police!