Using your results in step 1, design and build the 2-level voltage level meter in Figure 5. Note that voltage node V₁ in the voltage divider (Figure 4) is connected to the inverting input of one of the op-amps and voltage node V₂ in the voltage divider is connected to the inverting input of the other op- amp. Use the equation in the "Light Emitting Diodes" supplement to determine values for Rlimiting so that the current through each LED (when on) is 10 mA, as specified in the supplement.

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...
icon
Related questions
Question
1. When we build our level meter, we will need some fixed voltages to serve as
references for comparison. We can produce these voltage references
through the use of voltage division -- dividing down the positive voltage rail
used to power the op-amps. See Figure 4. Use your results from prelab to
choose values for R1, R2, and R3 such that V₁ = 8 V and V₂ = 4 V.
15V
R
R2
R3
www
V2
ww
Figure 4. Voltage references for the level meter.
Transcribed Image Text:1. When we build our level meter, we will need some fixed voltages to serve as references for comparison. We can produce these voltage references through the use of voltage division -- dividing down the positive voltage rail used to power the op-amps. See Figure 4. Use your results from prelab to choose values for R1, R2, and R3 such that V₁ = 8 V and V₂ = 4 V. 15V R R2 R3 www V2 ww Figure 4. Voltage references for the level meter.
Using your results in step 1, design and build the 2-level voltage level meter
in Figure 5. Note that voltage node V₁ in the voltage divider (Figure 4) is
connected to the inverting input of one of the op-amps and voltage node V₂
in the voltage divider is connected to the inverting input of the other op-
amp. Use the equation in the "Light Emitting Diodes" supplement to
determine values for Rlimiting so that the current through each LED (when on)
is 10 mA, as specified in the supplement.
Vin
R1
R2
R3
+15
-15
+15
+
8
-15
U1A
U1B
Rlimiting
Rlimitin
Figure 5. Two LED level meters.
ALED
4
LED2
Transcribed Image Text:Using your results in step 1, design and build the 2-level voltage level meter in Figure 5. Note that voltage node V₁ in the voltage divider (Figure 4) is connected to the inverting input of one of the op-amps and voltage node V₂ in the voltage divider is connected to the inverting input of the other op- amp. Use the equation in the "Light Emitting Diodes" supplement to determine values for Rlimiting so that the current through each LED (when on) is 10 mA, as specified in the supplement. Vin R1 R2 R3 +15 -15 +15 + 8 -15 U1A U1B Rlimiting Rlimitin Figure 5. Two LED level meters. ALED 4 LED2
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Photoconductive cell
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,