Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN: 9781337900348
Author: Stephen L. Herman
Publisher: Cengage Learning
Bartleby Related Questions Icon

Related questions

Question
[画像:4.1.6 Design an astable Example multivibrator for an output frequency of 1 kHz but a variable duty cycle of 30 % to 70 %. Assume Vcc = 12 V. Solution: For variable duty cycle, use the modified circuit as shown in the Fig. 4.1.30. Now f = 1.44 C (R1 + R2 + R3) Choose C = 0.1 μF +Vcc 4 8 Vout 555 D 5 1x103 = Fig. 4.1.30 1.44 0.1x 106 (R1 + R2 + R3) 0.01 μF R1 + R2 + R3 = 14400 .... (1) %D min K1 R1+ R2 + R3 ×ばつ 100 30 = R1 R1 + R2 + R3 x 100 .... (2) Using equation (1) R1 = 4.32 kQ 30 = R1 ×ばつ 100 14400 Now .. ... (3) R1+ R2 %Dmax = x 100 R1+ R2 + R3 70 = R1+R2 R1+ R2 + R3 x 100 4.32 x 103 + R2 70 = x 100 14400 Using equations (1) and (3), R2 = 5.76 k Using equation (1) R3 = 4.32 kQ Thus the various component values are, C = 0.1 uF, R1 = R3= 4.32 kQ, R2 = 5.76 kQ.]
expand button
Transcribed Image Text:4.1.6 Design an astable Example multivibrator for an output frequency of 1 kHz but a variable duty cycle of 30 % to 70 %. Assume Vcc = 12 V. Solution: For variable duty cycle, use the modified circuit as shown in the Fig. 4.1.30. Now f = 1.44 C (R1 + R2 + R3) Choose C = 0.1 μF +Vcc 4 8 Vout 555 D 5 1x103 = Fig. 4.1.30 1.44 0.1x 106 (R1 + R2 + R3) 0.01 μF R1 + R2 + R3 = 14400 .... (1) %D min K1 R1+ R2 + ×ばつ 100 30 = R1 R1 + R2 + R3 x 100 .... (2) Using equation (1) R1 = 4.32 kQ 30 =×ばつ 100 14400 Now .. ... (3) R1+ R2 %Dmax = x 100 R1+ R2 + R3 70 = R1+R2 R1+ R2 + R3 x 100 4.32 x 103 + R2 70 = x 100 14400 Using equations (1) and (3), R2 = 5.76 k Using equation (1) R3 = 4.32 kQ Thus the various component values are, C = 0.1 uF, R1 = R3= 4.32 kQ, R2 = 5.76 kQ.
Expert Solution
Check Mark
Knowledge Booster
Background pattern image
Recommended textbooks for you
Text book image
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning
Text book image
Power System Analysis and Design (MindTap Course ...
Electrical Engineering
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:Cengage Learning
Text book image
Electricity for Refrigeration, Heating, and Air C...
Mechanical Engineering
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Cengage Learning
Text book image
EBK ELECTRICAL WIRING RESIDENTIAL
Electrical Engineering
ISBN:9781337516549
Author:Simmons
Publisher:CENGAGE LEARNING - CONSIGNMENT
Text book image
Electric Motor Control
Electrical Engineering
ISBN:9781133702818
Author:Herman
Publisher:CENGAGE L