Solution Found!

Engineering and Tech / Microelectronic Circuits (The Oxford Series in Electrical and Computer Engineering) 7 / Chapter 18 / Problem 18.46

Microelectronic Circuits (The Oxford Series in Electrical and Computer Engineering) | 7th Edition | ISBN: 9780199339136 | Authors: Adel S. Sedra, Kenneth C. Smith

Change Question

(a) Using a 0.5-nF capacitor C in the circuit of Fig. 18.30(a), find the value of R that

Chapter 18, Problem 18.46

(choose chapter or problem)

Get Unlimited Answers

QUESTION:

(a) Using a 0.5-nF capacitor C in the circuit of Fig. 18.30(a), find the value of R that results in an output pulse of 10-s duration. (b) If the 555 timer used in (a) is powered with VCC = 12 V, and assuming that VTH can be varied externally (i.e., it need not remain equal to 2 3 VCC), find its required value so that the pulse width is increased to 20s, with other conditions the same as in (a).

Questions & Answers

QUESTION:

(a) Using a 0.5-nF capacitor C in the circuit of Fig. 18.30(a), find the value of R that results in an output pulse of 10-s duration. (b) If the 555 timer used in (a) is powered with VCC = 12 V, and assuming that VTH can be varied externally (i.e., it need not remain equal to 2 3 VCC), find its required value so that the pulse width is increased to 20s, with other conditions the same as in (a).

ANSWER:

Step 1 of 2

(a) The pulse duration is , the capacitance is

The resistance value is calculated as,

Therefore, the resistance is .

Study Tools You Might Need

Chapter: 4 Problem: 38P

Physics with MasteringPhysics 4
Problem 38P What is the highest tree the ball in the previous problem could clear on its way to the longest possible holc-in-one? Reference (previous) Problem: . A golfer gives a ball a maximum initial speed of 34.4 m/s. (a) What is the longest possible hole-in-one for this golfer? Neglec

Chapter: 0 Problem: 1

Biology 8
Organic chemistry is currently defined as a. the study of compounds made only by living cells. b. the study of carbon compounds. c. the study of vital forces. d. the study of natural (as opposed to synthetic) compounds. e. the study of hydrocarbons.

Chapter: 0 Problem: 5

Biology 8
A genetic change that caused a certain Hox gene to be expressed along the tip of a vertebrate limb bud instead offarther back helped make possible the evolution ofthe tetrapod limb. This type of change is illustrative of a. the influence of environment on development. b. paedomorphosis. c. a change i

Chapter: 6 Problem: 16

Elementary Statistics: A Step by Step Approach 8th ed. 8
Cell Phone Lifetimes A recent study of the lifetimes of cell phones found the average is 24.3 months. The standard deviation is 2.6 months. If a company provides its 33 employees with a cell phone, find the probability that the mean lifetime of these phones will be less than 23.8 months. Assume cell

Chapter: 24 Problem: Problems and Applications 23.2

Principles of Economics 6
The residents of Vegopia spend all of their income on cauliflower, broccoli, and carrots. In 2010, they buy 100 heads of cauliflower for $200, 50 bunches of broccoli for $75, and 500 carrots for $50. In 2011, they buy 75 heads of cauliflower for $225,80 bunches of broccoli for $120, and 500 carrots f

Chapter: 5 Problem: 7

Urban Economics 8
Growth Control and Wages Consider a city with an equilibrium wage of $80 per day, equilibrium employment of 100,000 jobs, and 100 million square feet of housing. The governments growth-control policy fi xes the maximum total square footage in the city at its current level. New housing can be built, b

Chapter: 3 Problem: 4

Principles of Economics 9
Between Mateo and Sophia, who has the comparative advantage in car washing, and who has the comparative advantage in lawn mowing? a. Mateo in washing, Sophia in mowing b. Sophia in washing, Mateo in mowing c. Mateo in washing, neither in mowing d. Sophia in washing, neither in mowing

Chapter: 8 Problem: 8.106

Chemistry 13
A student is given samples of three elements, X, Y, and Z, which could be an alkali metal, a member of Group 4A, and a member of Group 5A. She makes the following observations: Element X has a metallic luster and conducts electricity. It reacts slowly with hydrochloric acid to produce hydrogen gas. E

Not The Solution You Need? Search for Your Answer Here:

×

Login

Login or Sign up for access to all of our study tools and educational content!

×

Register

Sign up for access to all content on our site!

Or login if you already have an account