Digital Electronics - Multivibrators and 555 Timer - Discussion
Discussion Forum : Multivibrators and 555 Timer - General Questions (Q.No. 26)
26.
What is the pulse width of the output of a 74123 if an external 4.7-k
resistor and a 0.022-
F capacitor are used?
resistor and a 0.022-F capacitor are used?290 ms
29 ms
33.3 s
s290 s
sDiscussion:
8 comments Page 1 of 1.
Ishika Raj said:
5 years ago
The Time period for monostable multivibrator= 0.28(RC(1+0.7/R).
Sivaji the boss said:
8 years ago
What is the formula?
Abhishek gupta said:
8 years ago
29usec will be the answer.
Anjana said:
9 years ago
Use formula.
Ton = 0.3 * R * Cext(1 + 0.7/R).
Ton = 0.3 * R * Cext(1 + 0.7/R).
Lyubna said:
1 decade ago
Tw = K*Rt*Cext.
When Cext is > 1 μF, the output pulse duration is defined as:
Tw = 0.33*Rt*Cext.
When Cext is > 1 μF, the output pulse duration is defined as:
Tw = 0.33*Rt*Cext.
Siva said:
1 decade ago
T1 = 0.693 * R. Formula gives the pulse width.
Aalya said:
1 decade ago
TW = KRC(1 + 0.7/RX)
Seema said:
1 decade ago
What is the formula for pulse width of the o/p of a 74123 ?
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