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Unformatted text preview: -12 V 13.18 *Problem 13.17 - NPN Common-Emitter Amplifier VCC 7 0 DC 12 VEE 8 0 DC -12 R1 3 8 5K R2 7 3 10K RE 4 8 4K RC 7 5 6K Q1 5 3 4 NBJT .OP .MODEL NBJT NPN IS=1E-15 BF=75 VA=75 .END Results: IC 1.78E-03 VCE 6.14E+00 VBE 7.28E-01 13.37 (a) Q R 3 R 1 R 2 v o +-R E v i R I R C (b) R 3 R B R E r r o v +-g m v v i R I v o +-R C (c) C 1 is a coupling capacitor that couples the ac component of v I into the amplifier. C 2 is a coupling capacitor that couples the ac component of the signal at the collector to the output v O . C 3 is a bypass capacitor. 13.54 13.62 13.67 13.107...
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