Electronic System Design B.E Practicals

Experiment VII 

DC and AC analysis of given circuit.

Voltage Divider Biasing:  

Voltage divider is formed using external resistors R1 and R2. The voltage across R2 forward biases the emitter junction. By proper selection of resistors R1 and R2, the operating point of the transistor can be made independent of β. In this circuit, the voltage divider holds the base voltage fixed independent of base current provided the divider current is large compared to the base current. However, even with a fixed base voltage, collector current varies with temperature so an emitter resistor is added to stabilize the Q-point, similar to the above circuits with emitter resistor. 

In this circuit the base voltage is given by: VB

                                                         

Circuit Diagram:

Fig 1: Voltage Divider Bias Circuit

Refer Following Video for Detail Explanation👇:

                                                     Video Exp7

Reference Document📑:

 Experiment Write-Up

Take A Test!👍

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