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Topic: LM317T Driving me nuts (Read 5 times) previous topic - next topic

SgtOneill

Made the circuit, packed everything nice and tight and here we go:




Thanks everyone ;)

MarkT


Quote
...at least feeding them all with 3.6v.  


[font=Verdana]AARRGGHH[/font][/size]

You 'feed' LEDs with current, the voltage that appears across them is dependent upon the current that you 'fed' them.

Don


That's what happens with a Norton current source.  With a Thevenin voltage source you feed a voltage and the circuit responds with a current.  With a real circuit its neither a perfect voltage nor a perfect current source, it has an impedance and voltage offset and the circuit responds accordingly - effectively the circuit solves two simultaneous equations.
[ I won't respond to messages, use the forum please ]

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