Common Base Amplifier DC Analysis Calculator

Common Base Amplifier DC Analysis

Calculate the operating point of a common base amplifier.

Assumptions: NPN transistor with \(V_{BE} \approx 0.7\,V\) and \(I_C \approx I_E\).

Step 1: Enter Parameters

e.g., 12 V

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

e.g., 1000 Ω

e.g., 4700 Ω

Typically around 0.7 V for silicon transistors

Formulas:
\( V_E = V_B – V_{BE} \)
\( I_E = \frac{V_E}{R_E} \) (in A; convert to mA if desired)
\( V_C = V_{CC} – I_C R_C \) (with \(I_C \approx I_E\))
\( V_{CE} = V_C – V_E \)