Subject:
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Re: Homemade LED Bricks
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 15 Nov 1999 07:14:06 GMT
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Original-From:
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Frank Wales <[frank@limitless]Spamcake[.co.uk]>
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Viewed:
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651 times
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dave madden wrote:
> This is curious: why can't one build a diode that (electrically)
> behaves like this:
>
> red
> +---|<---+
> | |
> -----+ +----
> | |
> +--->|---+
> green
>
> Are LEDs such bad diodes that this won't work? Or is there something
> else I forgot (or never learned) in electronics that makes this
> impossible?
Such LEDs are available. Forward DC -> red, reverse DC -> green, AC -> yellow.
I'm looking at a catalogue now with some.
--
Frank Wales [frank@limitless.co.uk]
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Message is in Reply To:
 | | Re: Homemade LED Bricks
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| =>From: "Maneesh Soni" <maneeshsoni@hotmail.com> =>... =>It is not possible to have a two-terminal and dual colour LED. One of the =>three terminals is a common negative terminal of two LEDs that are inseide =>the same casing. The two remaining (...) (25 years ago, 15-Nov-99, to lugnet.robotics)
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