Chpt. 4e 1

Application of EM modelApplication of EM model

forward active modeforward active mode saturation modesaturation mode inverse modeinverse mode

Chpt. 4e 2

EM model -- Transport modelEM model -- Transport model

transport model of the transport model of the npnnpn BJT BJT

Chpt. 4e 3

Basic BJT logic inverterBasic BJT logic inverter

Chpt. 4e 4

minority-carrier concentrationminority-carrier concentration line (c) = conc. Blue => currentline (c) = conc. Blue => current

in base of sat. trans. Grey => in base of sat. trans. Grey => sat.sat.

Chpt. 4e 5

Complete Static Characteristics Complete Static Characteristics of BJTof BJT

common-base characteristics of common-base characteristics of npnnpn

Chpt. 4e 6

hybrid -hybrid - model model

Chpt. 4e 7

common-emitter char.common-emitter char.

Chpt. 4e 8

expanded view (common-emitter char.)expanded view (common-emitter char.)

Chpt. 4e 9

other static char. Of BJTother static char. Of BJT

the transistor the transistor (short-circuit current (short-circuit current gain)gain)

transistor breakdown (sustaining transistor breakdown (sustaining voltage)voltage)

internal capacitances of BJTinternal capacitances of BJT high-frequency hybrid-high-frequency hybrid-modelmodel cutoff frequencycutoff frequency