The output stage of a multistage amplifier usually employs ___________
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Electrical Engineering · all questionsTransistor Audio Power Amplifiers
Transistor Audio Power Amplifiers
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___________ coupling is generally employed in power amplifiers
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The class B push-pull circuit can deliver 100 W of a.c. output power. What should be the minimum power rating of each transistor?
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The maximum efficiency of resistance loaded class A power amplifier is
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The disadvantage of impedance matching is that it ___________
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In class A operation, the operating point is generally located ___________ of the d.c. load line.
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The output transformer used in a power amplifier is a ___________ transformer
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Transformer coupling can be used in ___________ amplifiers
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A 2-transistor class B power amplifier is commonly called ___________ amplifier
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A class A power amplifier is sometimes called ___________ amplifier
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If a transistor is operated in such a way that output current flows for 60° of the input signal, then it is ___________ operation
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The push-pull circuit must use ___________ operation
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The most costly coupling is ___________ coupling
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When no signal is applied, the approximate collector efficiency of class A power amplifier is
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If the zero signal dissipation of a transistor is 1W, then power rating of the transistor should be at least ___________
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The maximum collector efficiency of class B operation is ___________
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Class C power amplifier has the highest collector efficiency
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Class ___________ operation gives the maximum distortion
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An AF amplifier is shielded to ___________
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The maximum a.c. power output from a class A power amplifier is 10 W. What should be the minimum power rating of the transistor used ?
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