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Chapter 15: Problem 6
A full-wave rectified signal of \(18 \mathrm{~V}\) peak is fed into a capacitor filter. What is the voltage regulation of the filter if the output is \(17 \mathrm{~V} \mathrm{dc}\) at full load?
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Draw the circuit of a voltage supply comprised of a full-wave bridge rectifier, capacitor filter, and IC regulator to provide an output of \(+12 \mathrm{~V}\).
Calculate the percentage ripple for the voltage developed across a \(120-\mu \mathrm{F}\) filter capacitor when providing a load current of \(80 \mathrm{~mA}\). The full-wave rectifier operating from the \(60-\mathrm{Hz}\) supply develops a peak rectified voltage of \(25 \mathrm{~V}\).
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 \(500 \Omega\) ?
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.
A full-wave rectified voltage of \(18 \mathrm{~V}\) peak is connected to a \(400-\mu \mathrm{F}\) filter capacitor. What are the ripple and dc voltages across the capacitor at a load of \(100 \mathrm{~mA}\) ?
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