Transistor Amplifier Circuits Unit 3 – Common Emitter Circuit
After a base-emitter voltage (VBE) of about 0.6 Vdc, the base current (IB) increases very
rapidly.
The transistor circuit ac and dc load lines intersect at the Q-point on the collector current
characteristic curves.
A voltage divider circuit uses a single dc power supply to provide a constant base terminal
voltage for the CE transistor. The CE circuit has high current, voltage, and power gains. The
input and output impedances are high.