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led driver

This is a ledan LED driver circuit, but I don't understand what is the use of the transistor in it .

Sorry if it's stupid question , I am a beginner .?

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occurred Apr 20, 2015 at 3:01

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edited Apr 20, 2015 at 0:19

what What is the use of the transistor in this circuit?

led driver

This is a led driver circuit but I don't understand what is the use of the transistor in it .

sorrySorry if it's stupid question , iI am a beginner .

Source Link

asked Apr 19, 2015 at 23:11

what is the use of the transistor in this circuit?

led driver

This is a led driver circuit but I don't understand what is the use of the transistor in it .

sorry if it's stupid question , i am a beginner .

transistors