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Diffstat (limited to '2459/CH12/EX12.22/Ex12_22.sce')
| -rw-r--r-- | 2459/CH12/EX12.22/Ex12_22.sce | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/2459/CH12/EX12.22/Ex12_22.sce b/2459/CH12/EX12.22/Ex12_22.sce new file mode 100644 index 000000000..5df65f147 --- /dev/null +++ b/2459/CH12/EX12.22/Ex12_22.sce @@ -0,0 +1,22 @@ +//chapter12
+//example12.22
+//page257
+
+V_CC=10 // V
+R1=1.5 // kilo ohm
+R2=0.68 // kilo ohm
+R_E=0.24 // kilo ohm
+V_BE=0.7 // V
+beta_min=100
+beta_max=400
+
+V2=V_CC*R2/(R1+R2)
+I_E=(V2-V_BE)/R_E
+I_C=I_E
+
+beta_avg=(beta_min*beta_max)^0.5
+I_B=I_E/(beta_avg+1)
+
+printf("base current = %f micro ampere \n",I_B*1000)
+
+// the accurate answer for base current is 50.151 micro ampere but in book it is given as 49.75 micro ampere
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