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Electronic Devices & CircuitsPower Amplifiers

Class-AB operation is commonly used instead of pure class-B operation primarily to?

  • AReduce crossover distortion
  • BEliminate all power dissipation
  • CMake voltage gain exactly zero
  • DOperate both devices permanently in cutoff
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Correct Answer: A. Reduce crossover distortion
Explanation: Class-AB biases the output devices slightly on around zero crossing, substantially reducing crossover distortion while retaining better efficiency than class A.
Reference: Standard analog electronics: class-AB amplifier
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