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LED Drive

Discussion in 'Beginner Electronics' started by Tom Simmons, Feb 15, 2004.

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  1. Tom Simmons

    Tom Simmons Guest

    Anyone got any thoughts on the pros and cons of constant current
    against pulsed driving of bright LEDs.

    Is there anything special or important to consider in the circuitry
    for the pulsed drive, any examples would would helpful.

    Thanks

    Tom
     
  2. electricked

    electricked Guest

    Well, one will eat up more energy than the other set-up. What exactly are
    you after?

    --Viktor
     
  3. Skhot

    Skhot Guest

    Drive LED with high pulsed current using a low duty cycle within device
    specs for max eff. Pulse drive is ideal for LED's due to the "persistent of
    vision" factor of the human eye, that is, it will integrate the light
    pulses. Less power and heat compared to constant current.

    -S
     
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