Timeline for LEDs are burning. Cannot figure out why
Current License: CC BY-SA 3.0
9 events
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| Aug 22, 2014 at 7:34 | history | edited | DrFriedParts | CC BY-SA 3.0 |
fixed typo "you" --> "your"
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| Aug 21, 2014 at 12:51 | comment | added | Alex Okrushko | @DrFriedParts thanks for explaining everything in details. Really appreciate it! Before this I've only been playing around with battery-powered circuits, and looks like battery is a voltage source. | |
| Aug 21, 2014 at 12:47 | comment | added | Alex Okrushko | @JohnU Initially the lamp had 5 LEDs, but they first first melted the plastic light spreaders (don't know how they are called) and then eventually one of the LEDs was burned breaking the chain. I've replaced all 5 LEDs with the new ones and added 2 more thinking that I would "unload" the system. That didn't help as LEDs started to burn again (within a month). | |
| Aug 21, 2014 at 12:40 | vote | accept | Alex Okrushko | ||
| Aug 21, 2014 at 11:39 | comment | added | John U | LED's in series can also burn out due to unequal voltage drops due to variance in manufacturing, it is easy to get one "weak" one which then means the others are sharing too much voltage and hence operating outside their rating. | |
| Aug 21, 2014 at 7:26 | comment | added | Dave Van den Eynde | This is a really good answer. | |
| Aug 21, 2014 at 6:19 | history | edited | DrFriedParts | CC BY-SA 3.0 |
deleted 1 character in body
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| Aug 21, 2014 at 3:57 | history | edited | DrFriedParts | CC BY-SA 3.0 |
added 1449 characters in body
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| Aug 21, 2014 at 3:50 | history | answered | DrFriedParts | CC BY-SA 3.0 |