(See related pages)
After studying this chapter, you should be able to:
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• State the difference between a low-pass and a high-pass filter. |
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• Explain what is meant by pulsating direct current. |
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• Explain how a transformer acts as a high-pass filter. |
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• Explain how an RC coupling circuit couples alternating current but blocks direct current. |
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• Explain the function of a bypass capacitor. |
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• Calculate the cutoff frequency, output voltage, and phase angle of basic RL and RC filters. |
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• Explain the operation of band-pass and band-stop filters. |
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• Explain why log-log graph paper or semilog graph paper is used to plot a frequency response. |
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• Define the term decibel. |
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• Explain how resonant circuits can be used as band-pass or band-stop filters. |
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• Describe the function of a power-line filter and a television antenna filter. |