Topic: Analog Circuits
Which of following class of amplifiers provides highest efficiency?
- A. Class A
- B. Class B
- C. Class C
- D. Class F
Answer: D. Class F
Explanation: Among the options provided, Class F amplifiers offer the highest theoretical efficiency. Class F amplifiers use harmonic resonators in the output network to shape the voltage and current waveforms (square and half-sine respectively), minimizing the region where both voltage and current are non-zero, pushing efficiency towards 100%.