Question

Design and implement a common-emitter audio amplifier using a general purpose transistor 2N3904. The design must provide features such as; mid-band gain of 100 with undistorted output, stable bias with voltage divider bias (from a 12 or 15V dc source), AC gain stability with emitter bypass capacitor, and coupling capacitors at the input and output to block the dc components.

Your design should include complete calculations for choosing voltages, various circuit components (resistors, coupling capacitors), and the circuit diagram. The assumptions and approximations (if any) used must be clearly shown in the design. The datasheet for the 2N3904 indicates that beta ranges from 100 to 300 for a collector current of 10 mA. Refer the datasheet for various parameters required for the design.

Answer 1