Common emitter transistor amplifier

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SUMMARY

The discussion focuses on the analysis of a common emitter transistor amplifier with specific component values: Rc=5k ohm, R1=100k ohm, R2=27k ohm, Re=3.3k ohm, beta=200, and Vs=12.7V. The saturation voltage (Vce) is noted as 0.3V, and the DC voltage between the collector and ground is measured at 7.7V. Participants express confusion regarding the calculation of base, emitter, and collector currents, particularly in relation to the validity of the formula Ib=Ic/beta in saturation conditions.

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  • Knowledge of transistor parameters such as beta and Vce
  • Familiarity with Ohm's Law and Kirchhoff's Voltage Law
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  • Calculate base, emitter, and collector currents using the provided component values
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jmher0403
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Rc= 5k ohm
R1=100k ohm
R2= 27k ohm
Re=3.3k ohm
beta=200
Vs=12.7V

Vce= 0.3V at saturation

With no signal applied, dc voltage btw collector ans ground measured as 7.7V

Calculate the transistors base,emitter,collector currents

Ive only come across problems with transistor in linear region so I am confused where to start as I learned that Ib=Ic/beta no longer valid.

Please help.
 
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