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Old 19-05-2007, 11:17 AM
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freespace
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Join Date: Apr 2007
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Quote:
Originally Posted by mojo View Post
You can do it like freespace mentioned and it will work but not recommended (sorry freespace). It's unreliable having LEDs directly in parallel with each other - which is why you never see them in circuits like that. LEDs need their own current limiting resistors.
NP! No one ever told me that :-)

But now I know - the things you learn eh :-)

The series design is less desirable to me because it requires more voltage. The original design of this thread had a resistor for each LED - so they are not directly in parallel - and it should work fine.

And yes, if the 6V isn't regulated I recommend a voltage regulator to drop the voltage down to 5V ( LM715? 785? Forgot :\ I don't think there is a 6V regulator model). Then you can just adjust your equations a bit.
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