Common Base Amplifier Calculator (DC Analysis)

This calculator calculates the Base Current, Collector Current and Voltage between the collector and emitter, i.e. DC parameters for a BJT Common Base (CB) circuit. In this configuration the emitter of the BJT is the input, the collector is the output and the based is the common port, which is usually connected to ground. This configuration is equivalent to the common gate configuration in a FET transistor.

DC Analysis of a Common Base (CB) BJT circuit

Emitter biasing voltage (V_EE)

Collector Biasing Voltage (V_CC)

Common Emitter current gain (β)

Collector Resistance (R_C)

K-Ohm

Emitter Resistance (R_E)

K-Ohm

Base Resistance (R_B)

K-Ohm

Result

Base Current

Collector Current

Collector Emitter Voltage (V_CE)

Click here to view image

where

β=Common Emitter Current gain

V_BE=0.7 V

and the resistances are marked in the diagram.