basic circuits

[faca]

Hi I´m tring to know how LED are regulated or managed so that I need some basic electric circuit tutorials
What must I repect vmax max current etc, thanks

 

[NA8]

There's some good info on basic stuff here.
Look under the electricity and magnetism area.

http://hyperphysics.phy-astr.gsu.edu/hbase/hph.html

 

[faca]

thanks
I wanted some LED circuit I expalin myself LED resistor is near ZERO so If I put baterry +LED Is no bad for battery becouse is like shortcircuit?
Which is the way to take longer run time with less lumens for the same LED, less curret so paralell resistor? but in no the same power consumed LED+resistor?
IS the way some electronic current regulator chip the way?
????

 

[NA8]

thanks
I wanted some LED circuit I expalin myself LED resistor is near ZERO so If I put baterry +LED Is no bad for battery becouse is like shortcircuit?
Which is the way to take longer run time with less lumens for the same LED, less curret so paralell resistor? but in no the same power consumed LED+resistor?
IS the way some electronic current regulator chip the way?
????

baterry +LED hmm... depends on the battery and LED. I think you'd want to start at the website for the LED's manufacturer and look at their documentation. They probably have application notes that may cover what you're looking for. Often the makers of IC chips will have application notes on how to drive LEDs. e.g.

http://www.zetex.com/3.0/appnotes/design/dn81.pdf


less curret so paralell resistor? No, you'd want a resistor with a larger value. Substitute a potentiometer and dial it to the output you want. Measure the value of the potentiometer and put a resistor close to that value in the circuit.