School of Computer Science and Electrical Engineering 17/05/01 Asymmetry of Transistor Although in the nPn schematic, it looks like the collector and emitter can be reversed, in reality the device is very inefficient in reverse connection and has very little amplification gain) collector base emitter collector emitter base Is really n-type p-type n-type quite asymmetric NPN NPN Lecture 11 ENG1030 Electrical Physics and Electronics B./T DownsENG1030 Electrical Physics and Electronics B.Lovell/T.Downs School of Computer Science and Electrical Engineering 3 17/05/01 Lecture 11 Asymmetry of Transistor • Although in the NPN schematic, it looks like the collector and emitter can be reversed, in reality the device is very inefficient in reverse connection and has very little amplification (gain). n-type p-type n-type NPN is really collector base emitter collector base emitter NPN quite asymmetric