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Chapter 4 – Bipolar Junction Transistors (BJTs)
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sedr42021_p03003a.jpg

sedr42021_p03003a.jpg

sedr42021_p03003a.jpg

sedr42021_0513a.jpg Figure 5.13 Circuit symbols for BJTs.

sedr42021_0514a.jpg Figure 5.14 Voltage polarities and current flow in transistors biased in the active mode.

Conceptual circuit for measuring the iC –vCE characteristics of the BJT. sedr42021_p03003a.jpg The iC –vCE characteristics of a practical BJT.

sedr42021_p03003a.jpg

Conceptual circuit to illustrate the operation of the transistor as an amplifier. sedr42021_p03003a.jpg The circuit a) of with the signal source vbe eliminated for dc (bias) analysis.

Linear operation of the BJT transistor under the small-signal condition

Basic BJT digital logic inverter.

Sketch of the voltage transfer characteristic of the inverter circuit

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