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1. BJT amplifier The transistor in the small-signal equivalent circuit below has ẞ = 200 and has been biased so that Ic 5 mA. The transistor's Early effect is characterized by VA = 50 V. You can let I' = Ic. Use the 7-model and determine the overall gain, G = Vout/Usig. Vsig 500 100 k WD 1 k W 10 k Vout Note that all capacitors are large so that their impedance is negligible at signal frequencies of interest. npn equations active Ic Ise VBE/VT = IB = (Is/B)eVB VBE/VT IE = (Is/α)еVB VBE/VT Ic=ẞIB_IС = αIE B α α = B = B+1 1-α Ic α Im Υπ re To= VT 9m Im 550 VA

1. BJT amplifier The transistor in the small-signal equivalent circuit below has ẞ = 200 and has been biased so that Ic 5 mA. The transistor's Early effect is characterized by VA = 50 V. You can let I' = Ic. Use the 7-model and determine the overall gain, G = Vout/Usig. Vsig 500 100 k WD 1 k W 10 k Vout Note that all capacitors are large so that their impedance is negligible at signal frequencies of interest. npn equations active Ic Ise VBE/VT = IB = (Is/B)eVB VBE/VT IE = (Is/α)еVB VBE/VT Ic=ẞIB_IС = αIE B α α = B = B+1 1-α Ic α Im Υπ re To= VT 9m Im 550 VA

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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1. BJT amplifier The transistor in the small-signal equivalent circuit below has ẞ = 200 and has been biased so that Ic 5 mA. The transistor's Early effect is characterized by VA = 50 V. You can let I' = Ic. Use the 7-model and determine the overall gain, G = Vout/Usig. Vsig 500 100 k WD 1 k W 10 k Vout
Transcribed Image Text:1. BJT amplifier The transistor in the small-signal equivalent circuit below has ẞ = 200 and has been biased so that Ic 5 mA. The transistor's Early effect is characterized by VA = 50 V. You can let I' = Ic. Use the 7-model and determine the overall gain, G = Vout/Usig. Vsig 500 100 k WD 1 k W 10 k Vout
Note that all capacitors are large so that their impedance is negligible at signal frequencies of interest. npn equations active Ic Ise VBE/VT = IB = (Is/B)eVB VBE/VT IE = (Is/α)еVB VBE/VT Ic=ẞIB_IС = αIE B α α = B = B+1 1-α Ic α Im Υπ re To= VT 9m Im 550 VA
Transcribed Image Text:Note that all capacitors are large so that their impedance is negligible at signal frequencies of interest. npn equations active Ic Ise VBE/VT = IB = (Is/B)eVB VBE/VT IE = (Is/α)еVB VBE/VT Ic=ẞIB_IС = αIE B α α = B = B+1 1-α Ic α Im Υπ re To= VT 9m Im 550 VA
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