Section _ Understanding (Darlington transistor ) or Darlington pair
Check (Common Emitter Amplifier Configuration) in Darlington Transistor = Pair or Pair
Researcher and Author: Dr. ( Afshin Rashid)
Note: The common-emitter amplifier configuration increases voltage and is one of the most widely used Darlington transistor configurations for electronic circuit design.
The common emitter Darlington transistor amplifier circuit is one of the basic circuits for use in electronic circuit design, which has many advantages. The common emitter circuit configuration is used in many areas of electronic circuit design, in the structure and internal construction of the Darlington transistor pair as an audio amplifier, as a basic switch for logic circuits, as a general analog amplifier, and in many other applications. In the structure and internal construction of the Darlington transistor pair , the common emitter circuit configuration provides a voltage with a moderate current gain, as well as a moderate input and a moderate output impedance. As such, the common emitter configuration is a suitable circuit for use in many applications. It should also be noted that at this stage the common emitter transistor amplifier inverts the input signal.
So in the internal structure of the Darlington transistor pair, if a rising waveform is input to the input of the common emitter amplifier, it will cause a drop in the output voltage. In other words, it has a 180 degree phase shift in the circuit. Depending on the actual electronic circuit design, the common emitter does not use many electronic components, sometimes even two resistors, although for analog circuits it requires bias adjustment.
Of the three types of transistor configurations used in electronic circuit design, the common emitter transistor connection is the most widely used due to its main characteristics. The common emitter amplifier applies the signal to the base and then the output is taken from the collector circuit. However, as the name suggests, the main characteristic of this circuit is that the emitter circuit is common to both the input and output.
Researcher and Author: Dr. ( Afshin Rashid)
Specialized PhD in Nano-Microelectronics