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Chapter 15: Problem 5

A simple capacitor filter fed by a full-wave rectifier develops \(14.5 \mathrm{~V} \mathrm{dc}\) at \(8.5 \%\) ripple factor. What is the output ripple voltage (rms)?

Short Answer

Expert verified
The output ripple voltage (rms) is approximately \(1.2325 V\).

Step by step solution

01

Convert Ripple Factor

The ripple factor is given as \(8.5\% \). Therefore, we first convert this percentage to a decimal by dividing by 100. We get the ripple factor = \(0.085\).
02

Determine DC output voltage

It's given that the simple capacitor filter's full-wave rectifier's DC output voltage is \(14.5 V\). We use this value to calculate the output ripple voltage.
03

Calculate Output Ripple Voltage

The formula to calculate the rms value of the output ripple voltage is as follows: \[ \text{Output ripple voltage (rms)} = \text{Ripple factor} \times \text{DC output voltage} \] So, Substitute the values we have for the ripple factor and the DC output voltage: \[ \text{Output ripple voltage (rms)} = 0.085 \times 14.5 V = 1.2325 V \]

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Most popular questions from this chapter

A simple capacitor filter has an input of \(40 \mathrm{~V}\) dc. If this voltage is fed through an \(R C\) filter section \((R=50 \Omega, C=40 \mu \mathrm{F})\), what is the load current for a load resistance of \(500 \Omega\) ?

What is the ripple factor of a sinusoidal signal having peak ripple of \(2 \mathrm{~V}\) on an average of \(50 \mathrm{~V}\) ?

Calculate the rms ripple voltage at the output of an \(R C\) filter section that feeds a \(1-\mathrm{k} \Omega\) load when the filter input is \(50 \mathrm{~V}\) dc with \(2.5\) - \(\mathrm{V}\) rms ripple from a full-wave rectifier and capacitor filter. The \(R C\) filter section components are \(R=100 \Omega\) and \(C=100 \mu \mathrm{F}\).

A filter circuit provides an output of \(28 \mathrm{~V}\) unloaded and \(25 \mathrm{~V}\) under full-load operation. Calculate the percentage voltage regulation.

A full-wave rectifier (operating from a 60-Hz supply) drives a capacitor- filter circuit \((C=100 \mu \mathrm{F})\), which develops \(12 \mathrm{~V}\) dc when connected to a \(2.5-\mathrm{k} \Omega\) load. Calculate the output voltage ripple.
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