Question 24.4: Determine the pulse repetition frequency and the duty cycle ...
Determine the pulse repetition frequency and the duty cycle for the oscilloscope pattern in Fig. 24.13 having the indicated sensitivities.
T=(3.2 div .)(1 ms / \text { div. })=3.2 ms.
t_{p}=(0.8 \text { div. })(1 ms / \text { div. })=0.8 ms.
\operatorname{prf}=\frac{1}{T}=\frac{1}{3.2 ms }=312.5 Hz.
\text { Duty cycle }=\frac{t_{p}}{T} \times 100 \%=\frac{0.8 ms }{3.2 ms } \times 100 \%=25 \%.
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