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a6) BJT theory, electrical engineering course. i) We learned in lectures that to increase gm, one...

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Electrical Engineering

a6) BJT theory, electrical engineering course.

i) We learned in lectures that to increase gm, one needs to increase collectorcurrent subsequently power consumption. There are two ways toincrease collector current. What are they?

ii) Show that gm of a BJT in active mode is largerthan that in saturation mode

iii) What is rbe? rbe has two components,what are they and which one dictates?

iv) Show that gm, go, and rbeare all related to the DC current of BJTs (This is the reason thatthese parameters are small-signal parameters as they are defined ata specific DC operating point).

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