Machine-translated by Google. Questions are authored in English.
Top

Discussion

What is the conduction angle of a class B stage?

  • A.Well under half the cycle
  • B.One hundred and eighty degrees
  • C.Three hundred and sixty degrees, the whole cycle
  • D.Rather more than half the cycle, to avoid crossover

Answer: B

Class B conducts for exactly half the cycle, so two devices working alternately cover both halves. The whole cycle is class A, rather more than half is class AB, and well under half is class C. The half-cycle is what gives class B its high efficiency and also what produces crossover distortion at the handover, so both the virtue and the vice come from the same number.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.