(See related pages)
After studying this chapter, you should be able to:
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• Define the different classes of operation for a transistor amplifier. |
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• Calculate the ac load power, dc input power, and percent efficiency of a class A amplifier. |
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• Draw the ac load line for an RC coupled class A amplifier. |
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• Explain the operation of a class B push-pull amplifier. |
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• Calculate the dc quantities in a class B push-pull amplifier. |
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• Explain the advantage of using diode bias instead of standard resistor biasing in a class B push-pull amplifier. |
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• Define the term crossover distortion and explain why it occurs in a class B pushpull amplifier. |
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• Calculate the ac load power, dc input power, and percent efficiency of a class B push-pull amplifier. |
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• Explain the operation of a class C amplifier with a tuned LC tank circuit in the collector. |
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• Explain why the dc base voltage is negative for a class C amplifier using an npn transistor. |
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• Explain how a class C rf amplifier can be used as a frequency multiplier. |