Your friend who works for Photons 'R Us wants help with a circuit to drive the new LED his company has developed. He wants to turn on the LED based on a digital signal which swings between VDD and OV. Unfortunately the LED when it is on drops a voltage VD across of it and requires a current of IL to flow through it to produce light. You ask your 10A Professor for help and he shows you two circuits shown in figure 5, of course in his usual absent-minded self does not tell you how each one works, he only cryptically says one inverts and the other does not.

Your friend who works for Photons 'R Us wants help with a circuit to drive the new LED his company has developed. He wants to turn on the LED based on a digital signal which swings between VDD and OV. Unfortunately the LED when it is on drops a voltage VD across of it and requires a current of IL to flow through it to produce light. You ask your 10A Professor for help and he shows you two circuits shown in figure 5, of course in his usual absent-minded self does not tell you how each one works, he only cryptically says one inverts and the other does not.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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