Answer to Question #16046 in Electric Circuits for Umer

Question #16046
1. A basic LED driver circuit is comprised of a 5 volt source a 2 kohm potentiometer and a LED. The LED is forward biased. The LED manufacturer indicates a maximum current rating of 20 mA at a diode voltage drop of 1.9 volts.

a.) What is the minimum value of resistance the potentiometer can be adjusted to before damage to the LED occurs?
b.) What is the nominal resistance of the LED with this condition?
c.) Draw a schematic diagram illustrating the addition of a component that will protect the LED in the event that the pot is adjusted below a safe level.
Expert's answer
The answer to the question is available in the PDF file

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!


No comments. Be first!

Leave a comment

Ask Your question

New on Blog