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

Discussion

Which configuration is preferred as an output buffer?

  • A.Common emitter
  • B.Any of the three equally
  • C.Common collector
  • D.Common base

Answer: C

The common collector's low output impedance and high input impedance make it the natural buffer, isolating a delicate source from a demanding load at the cost of no voltage gain. Common emitter has a high output impedance and common base an even higher one. Choosing a configuration means asking what impedance transformation the interface needs, not only how much gain is wanted.

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

Post your comment

Please log in or register to post a comment.