Operational Modes/ Regions:
EBJ CBJ Mode
Forward Reverse Forward active
Forward Forward Saturation
Reverse Reverse Cut off
Reverse Forward Reverse active
Depend on biasing we can get different type of output from the BJT. We knew that BJT has two junctions that’s are Emitter-Base junction (EBJ) and Collector-Base junction (CBJ). By giving different input among these two junctions, we get those moods:--
For the case of digital circuit we use the biasing of Forward-Forward or Reverse-Reverse between EBJ-CBJ. And in the case of analog circuit we make biased between EBJ-CBJ is Forward-Reverse or Forward-Reverse. But the most common using for amplifying is Forward active mode. [2]
So it can be tell that there are three modes or regions of operation that is
1. Active
2. Cut off
3. Saturation
No comments:
Post a Comment