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How long will this LED last with this battery?

Discussion in 'General Electronics Chat' started by samakbass, May 9, 2012.

  1. picbits

    picbits Well-Known Member

    Jan 29, 2007
    Northants, United Kingdom
    I'm afraid I've given you as much info as I can really - the rest of the design is now property of my customer.

    Building a PWM circuit and checking the visible (percieved) light output vs pulse width ratio is a good place to start though - there is a point where the LED appears "bright enough" when an increase of the pulse duration doesn't appear to produce a lot more light.

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