Hello, if somebody could please help me with this multi-part question, It\'d be
ID: 1811537 • Letter: H
Question
Hello, if somebody could please help me with this multi-part question, It'd be greatly appreciated. Also, if you could please show me what/how you did it, that'd help even more.
A) An Astable multi-vibrator is built out of an inverting Schmitt trigger and an R-C timing circuit as shown in the figure below:
figure: http://i41.tinypic.com/eg760j.jpg
(i) How do I find the time constant (tau) of the R-C timing circuit of the multi-vibrator?
Tau = ____________ (ms)
(ii) How do I find the feedback voltage V1 at the non-inverting input, when the output voltage Vo is at Vsat = 14 V?
V1 = _________(V)
(iii) How do I find the period (T) and frequency (f) of the oscillation?
T=_______(ms)
f= ________(Hz)
B) The figure below is the use of a 555 timer to design an astable multi-vibrator. The frequency of oscillation is 2kHZ, and the duty cycle is 80%.
Figure: http://i43.tinypic.com/14y4xv5.jpg
(i) How do I determine the high state (Th) and low state (Tl) of the output?
Th=_________(ms)
Tl=___________(ms)
(ii) Using the solutions of part (i), design for Ra and Rb in the multivibrator circuit. Assume
C=0.01uF.
Rb=__________(K ohms)
Ra=___________(K ohms)
C) Question: http://i41.tinypic.com/9gzhn5.jpg
D)The waveform from question C is the ac part of a signal fed into an OP-Amp integrator with a gain of K=2500 (s^-1). How do I use the gain constant, and one or more of the results from the area under the curve, to determine the peak-to-peak value of the output Vo(pp) of the integrator?
Vo(pp)=___________(V)
Explanation / Answer
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