Newport Transporter Bridge Local Landmark.

MW0LLO Common Emitter Amplifier Design Page



Common emitter amplifier circuit diagram.

Supply Voltage Vs = V
Transistor Current Gain Β = (dimensionless)
Collector Current Ic = mA (Note 1)
IR1 / Ib = (dimensionless) (Note 2)
Vbe = V (Note 3)

Note 1: A good starting point for small signal amplifiers might be 2mA.

Note 2: For the base voltage to be held firmly at low frequencies, this value should be 10.

Note 3: For silicon transistors this is generally assumed to be 0.7 Volts.