O'Reilly logo

Consumer Electronics by S. P. Bali

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

CIRCUIT CONFIGURATION

The common-emitter circuit is the most convenient arrangement for low-frequency amplifier circuits. Its high current gain makes possible the use of resistance-capacitance coupling. Although the input resistance is normally of the order of one to two thousand ohms, it can readily be increased by inserting an unbypassed resistor in the emitter circuit. There will be a loss of signal across the emitter resistance, RE and since it is common to both input and output circuits, it will also introduce negative feedback, thus reducing the stage gain. The input resistance can also be increased by including a resistor RB in series with the input to the base. Again there will be a loss of signal across RB. A third method of obtaining ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required