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Testing high brightness LEDs in a production environment

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re: Testing high brightness LEDs in a production environment
sharps_eng   10/13/2010 9:32:35 PM
LEDs don't have their Vf fixed by a single physical phenomenon like a silicon junction; their forward current can vary by 20-30% for the same Vf, and the dynamic resistance slope is similarly wayward. Add the fact that many people are interested in pushing the devices to the max, even working 'outside the datasheet' limits, and production test becomes more important even for OEM manufacturers.

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