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ECE315_output_stages

Authored by Sameh Ibrahim

Engineering

University

Used 3+ times

ECE315_output_stages
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5 questions

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1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Power amplifiers are needed to

drive small load resistance

increase the output resistance

deliver large current levels

deliver large voltage swings

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Emitter Followers are

Class B power amplifiers

Class A power amplifiers

Class AB power amplifiers

Class C power amplifiers

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following has the highest theoretical power efficiency?

Emitter Follower

Push-Pull Output Stage

Improved Pull-Pull Output Stage

4.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Replacing the PNP in a push-pull stage with a composite transistor (NPN assisted with a PNP) results in

lower output resistance

higher output resistance

lower input resistance

higher input resistance

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Biasing an improved push-pull output stage requires

1 diode

2 diodes

3 diodes

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