DC Analysis of CE/CC BJT Amplifier Calculator

Calculate the DC operating point parameters for a BJT amplifier with emitter resistance.

For Common Emitter: \( V_E = V_B – V_{BE},\ I_E = \frac{V_E}{R_E},\ V_C = V_{CC} – I_C R_C,\ V_{CE} = V_C – V_E \). For Common Collector: \( V_E = V_B – V_{BE},\ I_E = \frac{V_E}{R_E} \) (output ≈ \(V_E\)).

Step 1: Enter Circuit Parameters

Amplifier Configuration:

Supply Voltage, \(V_{CC}\) (V):

e.g., 12 V

Base Bias Voltage, \(V_B\) (V):

e.g., 2.7 V (set by bias network)

Emitter Resistor, \(R_E\) (Ω):

e.g., 1000 Ω

Collector Resistor, \(R_C\) (Ω):

e.g., 4700 Ω

Base-Emitter Voltage, \(V_{BE}\) (V):

Typically ~0.7 V for silicon transistors

Step 1: Enter Circuit Parameters

Calculated Operating Point