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Which of these is incorrect for complementary symmetry push-pull amplifiers?
- a)During positive cycle NPN transistor conducts
- b)It is easier to fabricate on IC
- c)Size of the transformer required reduces
- d)Efficiency and figure of merit are same as transformer coupled push-pull amplifier
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Which of these is incorrect for complementary symmetry push-pull ampli...
Incorrect statement: c) Size of the transformer required reduces
Explanation:
Complementary symmetry push-pull amplifiers are a type of amplifier configuration that uses both NPN and PNP transistors to achieve a balanced output. They are commonly used in audio amplifier applications.
1. During positive cycle NPN transistor conducts:
During the positive half-cycle of the input signal, the NPN transistor conducts while the PNP transistor remains off. This allows the current to flow through the load connected to the collector of the NPN transistor, producing an amplified output signal.
2. It is easier to fabricate on IC:
Complementary symmetry push-pull amplifiers can be fabricated on integrated circuits (ICs), making them easier to manufacture and integrate into various electronic systems. The use of IC technology allows for smaller form factors, reduced power consumption, and improved reliability.
3. Size of the transformer required reduces:
This statement is incorrect. Complementary symmetry push-pull amplifiers do not require a transformer for their operation. Instead, they typically use a split power supply to provide the necessary positive and negative voltages for the NPN and PNP transistors. The load is connected directly to the collector of the transistors, eliminating the need for a transformer.
4. Efficiency and figure of merit are same as transformer coupled push-pull amplifier:
Complementary symmetry push-pull amplifiers offer similar efficiency and figure of merit as transformer-coupled push-pull amplifiers. The complementary symmetry configuration helps to cancel out even-order harmonics, resulting in low distortion and high efficiency. However, it is important to note that the efficiency and figure of merit can vary depending on the specific design and implementation of the amplifier.
In conclusion, the correct answer is c) Size of the transformer required reduces. Complementary symmetry push-pull amplifiers do not require a transformer for their operation, and instead, they utilize a split power supply.
Explanation:
Complementary symmetry push-pull amplifiers are a type of amplifier configuration that uses both NPN and PNP transistors to achieve a balanced output. They are commonly used in audio amplifier applications.
1. During positive cycle NPN transistor conducts:
During the positive half-cycle of the input signal, the NPN transistor conducts while the PNP transistor remains off. This allows the current to flow through the load connected to the collector of the NPN transistor, producing an amplified output signal.
2. It is easier to fabricate on IC:
Complementary symmetry push-pull amplifiers can be fabricated on integrated circuits (ICs), making them easier to manufacture and integrate into various electronic systems. The use of IC technology allows for smaller form factors, reduced power consumption, and improved reliability.
3. Size of the transformer required reduces:
This statement is incorrect. Complementary symmetry push-pull amplifiers do not require a transformer for their operation. Instead, they typically use a split power supply to provide the necessary positive and negative voltages for the NPN and PNP transistors. The load is connected directly to the collector of the transistors, eliminating the need for a transformer.
4. Efficiency and figure of merit are same as transformer coupled push-pull amplifier:
Complementary symmetry push-pull amplifiers offer similar efficiency and figure of merit as transformer-coupled push-pull amplifiers. The complementary symmetry configuration helps to cancel out even-order harmonics, resulting in low distortion and high efficiency. However, it is important to note that the efficiency and figure of merit can vary depending on the specific design and implementation of the amplifier.
In conclusion, the correct answer is c) Size of the transformer required reduces. Complementary symmetry push-pull amplifiers do not require a transformer for their operation, and instead, they utilize a split power supply.
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Community Answer
Which of these is incorrect for complementary symmetry push-pull ampli...
The complementary symmetry push-pull amplifier uses one NPN and one PNP transistor to conduct in positive and negative cycles respectively. It does not affect efficiency or figure of merit, but since no transformer is being used, it is easier to fabricate on ICs.
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Which of these is incorrect for complementary symmetry push-pull amplifiers?a)During positive cycle NPN transistor conductsb)It is easier to fabricate on ICc)Size of the transformer required reducesd)Efficiency and figure of merit are same as transformer coupled push-pull amplifierCorrect answer is option 'C'. Can you explain this answer?
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