I've got some questions with regards to what he's doing when he's answering this question.
See figure attached.
My textbook gives the equation,
\(v_{o} = V_{p} - V_{r}\) where Vr is the peak-to-peak value of the ripple voltage, and Vp is the peak value of the input sinusoid.
I write one KVL around the loop giving me,
\(v_{s} = 0.7 + v_{o}\)
So I ask myself what the biggest Vo will be? Well 15V with the 1V ripple so 16V.
With the diode added as well,
\(v_{s} = 16.7\)
This should be the peak value of my input sinusoid, Vp = 16.7V
Now the equation I should be using to find the desired capictance value is given as,
\(V_{r} = \frac{V_{p}}{fCR}\)
Why does he insist on using Vp-VD?
Thanks again!
See figure attached.
My textbook gives the equation,
\(v_{o} = V_{p} - V_{r}\) where Vr is the peak-to-peak value of the ripple voltage, and Vp is the peak value of the input sinusoid.
I write one KVL around the loop giving me,
\(v_{s} = 0.7 + v_{o}\)
So I ask myself what the biggest Vo will be? Well 15V with the 1V ripple so 16V.
With the diode added as well,
\(v_{s} = 16.7\)
This should be the peak value of my input sinusoid, Vp = 16.7V
Now the equation I should be using to find the desired capictance value is given as,
\(V_{r} = \frac{V_{p}}{fCR}\)
Why does he insist on using Vp-VD?
Thanks again!
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