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Thanks kam1718 and Brian.
The LED is always mounted on a pad, which is in turn on a aluminum block with heatsink paste. It works with regular power supply but not with my homemade circuit.
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Goldsmith,
I used a current source simply because when using commercial variable...
Hi All,
Instead of using commercial variable power supplies, I tried to build a simple variable current source for a LED. However, LEDs kept burning out on me and left me puzzled. The circuit diagram is attached. Any hint will be much appreciated. Thanks in advance.
Problem seen:
When...
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