Transcription of Example A BJT Circuit in Saturation
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Example A BJT Circuit in Saturation
12/3/2004 Example A BJT Circuit in Saturation 1/7 Example : A BJT Circuit in Saturation Determine all currents for the BJT in the Circuit below. K K V 10 K V = 99 Hey! I remember this Circuit , its just like a previous Example . The BJT is in active mode! Let s see if you are correct! ASSUME it is in active mode and ENFORCE VCE = V and iC = iB. The B-E KVL is therefore: 10 iB 2 (99+1) iB=0 Therefore iB = A 12/3/2004 Example A BJT Circuit in Saturation 2/7 2 See! Base current iB = A, just like before. Therefore collector current and emitter current are again iC = 99iB = mA and iE = 100 iB = mA.
mode! Let’s see if you are correct! ASSUME it is in active mode and ENFORCE V CE = 0.7 V and i C = β i B. The B-E KVL is therefore: 5.7 – 10 i B –0.7 – 2 (99+1) i B=0 Therefore i B = 23.8 µA . 12/3/2004 Example A BJT Circuit in Saturation 2/7 2 See! Base current i
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