One hundred and one LED''s
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Posts: 46,084
At 03:18 PM 11/18/2000 -0500, you wrote:
> Hello everyone,
> I've been given a task which requires lighting approx.
>100 LED's from a large 6V battery. Although the circuit will be controlled
>by a micro, I just need to switch them all on and all off. My question is:
>Is there some way I can wire them in series (to simplify hand wiring them)
>that will avoid the use of current limiting resistors? ie. can I use the
>LEDs themselves to drop the voltage...I'm trying to avoid a one
>resistor/LED scenario and I don't want a circuit that has 100 parallel
>connections...
>
>Best regards, Duncan
Hi Duncan -
Sure, why not - that's how Christmas tree lamps worked in years gone by. Just
remember the voltage drop through each one, and if one dies, they all die. Today
the newer ones are wired in series-parallel or have internal resistors - least
the one's I've seen.
Have fun ! I DON'T envy you : )
Bruce Bates
> Hello everyone,
> I've been given a task which requires lighting approx.
>100 LED's from a large 6V battery. Although the circuit will be controlled
>by a micro, I just need to switch them all on and all off. My question is:
>Is there some way I can wire them in series (to simplify hand wiring them)
>that will avoid the use of current limiting resistors? ie. can I use the
>LEDs themselves to drop the voltage...I'm trying to avoid a one
>resistor/LED scenario and I don't want a circuit that has 100 parallel
>connections...
>
>Best regards, Duncan
Hi Duncan -
Sure, why not - that's how Christmas tree lamps worked in years gone by. Just
remember the voltage drop through each one, and if one dies, they all die. Today
the newer ones are wired in series-parallel or have internal resistors - least
the one's I've seen.
Have fun ! I DON'T envy you : )
Bruce Bates