Vcc Rc Ovol R33 RC OVo2 R52 no-o R81
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...
Related questions
Question
Show that the circuit of Figure P10.41 functions
as an OR gate if the output is taken at vo1.
Transcribed Image Text:Vcc
Rc
Ovol
R33
RC
OVo2
R52
no-o
R81
Expert Solution
Step 1
When both the inputs v1 and v2 are zero, transistors Q1 and Q2 are OFF, but Q3 is ON, as the base is not grounded.
Hence, v01 is zero, as it is directly grounded through Q3.
Step 2
When v1 is ON and v2 is OFF, Q1 is ON, Q2 is OFF, and Q3 is OFF.
Hence, v01 is High as it is not grounded.
Step 3
When v1 is OFF and v2 is ON, Q1 is OFF, Q2 is ON, and Q3 is OFF as its base is shorted with ground through Q2.
Hence, v01 is High as it is not grounded.
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