Blazing Diodes: from spinnaker's http://forum.allaboutcircuits.com/showthread.php?t=3

Thread Starter

VoodooMojo

Joined Nov 28, 2009
495

another burning diode video.

1N4004

still lights at .8 volts.
varied the supply voltage from zero to 16 volts.
at 1 amp it glows pretty bright.
at 8 amps, well, see for yourself.
note the leads flash, first the anode on the left, then the cathode on the right.
probably the result of more package remaining on the cathode side.







Today, 06:57 AM
SgtWookie

Senior Member
Join Date: Jul 2007
Location: Orlando, FL USA
Posts: 10,484



It would be cool to do it again, but use a fan to keep the smoke out of the lens as the diode's burning up.

Notice the tinned leads "flash" at about 0:30 - 0:31
 
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Wendy

Joined Mar 24, 2008
21,840
I suspect the weird glow was the camera picking up the IR as light. Still, neat effect.
 

Audioguru

Joined Dec 20, 2007
11,251
I worked for Philips when the LED was invented. (Their invention of the Compact Cassette was fun). In their demonstration I thought the LED's junction was red hot. It wasn't bright but it was warm.
 
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