Electronic Devices and Amplifier Circuits with MATLAB Computing, Second Edition
Emphasizing operational amplifiers and integrated devices used in digital circuits, this text presents a thorough discussion of state-of-the-art electronic devices.
TABLE OF CONTENTS Electronic Devices and Amplifier Circuits with MATLAB Computing, Second Edition
3.2: NPN Transistor Operation
3.2 NPN Transistor Operation
For proper operation, the NPN and PNP transistors must be biased as shown in Figure 3.5.
Figure 3.5: Biased NPN and PNP Transistors for proper operation
The bias voltage sources are V BB for the base voltage and V CC for the collector voltage. Typical values for V BB are about 1 V or less, and for V CC about 10 V to 12 V. The difference in these bias voltages is necessary to cause current flow from the collector to the emitter in an NPN transistor and from the emitter to collector in a PNP transistor.
Copyright Orchard Publications 2008 under license agreement with Books24x7
