The basic knowledge and drive of standard and white light LED

Published:2011/7/20 23:09:00 Author:Borg | Keyword: basic knowledge, white light LED | From:SeekIC

The simplest way to make the LED work is to connect a resistor serially with it through a voltage source. As long as the working voltage (VB) is stable, LED will shed stable light with constant power (although the power of the light will decrease as the temperature rises). By changing the resistance of the serial resistor, the light power can be adjusted to the value that is needed. For a standard LED whose diameter is 5mm, figure1 represents the function curve of forward conducting voltage(VF) and forward (IF).



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