The BJT can operate in 4 different modes/zones since there are two voltages on it:
- Active mode
- Inverse/Reverse active mode
- Saturation mode
- Cut-off mode
Because Emitter and Collector junctions can be represented as diodes (with amplification) there are 4 different operating modes of BJT.
But do all of these modes apply for each of BJT orientation: Common Base, Common Emitter, Common Collector?
Are there 12 (3x4) different BJT circuits regarding to polarity of junctions and orientation of BJT?