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Diffstat (limited to '2459/CH16/EX16.9')
| -rw-r--r-- | 2459/CH16/EX16.9/Ex16_9.PNG | bin | 0 -> 9826 bytes | |||
| -rw-r--r-- | 2459/CH16/EX16.9/Ex16_9.sce | 22 |
2 files changed, 22 insertions, 0 deletions
diff --git a/2459/CH16/EX16.9/Ex16_9.PNG b/2459/CH16/EX16.9/Ex16_9.PNG Binary files differnew file mode 100644 index 000000000..ecae8e446 --- /dev/null +++ b/2459/CH16/EX16.9/Ex16_9.PNG diff --git a/2459/CH16/EX16.9/Ex16_9.sce b/2459/CH16/EX16.9/Ex16_9.sce new file mode 100644 index 000000000..1f6fd1870 --- /dev/null +++ b/2459/CH16/EX16.9/Ex16_9.sce @@ -0,0 +1,22 @@ +//chapter16
+//example16.9
+//page351
+
+Av=10000
+R1=10 // kilo ohm
+R2=90 // kilo ohm
+Zin=10 // kilo ohm
+Zout=100d-3 // kilo ohm
+
+mv=R1/(R1+R2)
+Avf=Av/(1+Av*mv)
+Zin_dash=(1+Av*mv)*Zin
+Zout_dash=Zout/(1+Av*mv)
+
+printf("feedbackfraction = %.1f \n",mv)
+
+printf("voltage gain with negative feedback = %.1f \n",Avf)
+
+printf("input impedence with feedback = %.3f kilo ohm or %.3f mega ohm \n",Zin_dash,Zin_dash/1000)
+
+printf("output impedence with feedback = %f kilo ohm or %.3f ohm \n",Zout_dash,Zout_dash*1000)
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