diff options
Diffstat (limited to '2459/CH14/EX14.13/Ex14_13.sce')
| -rw-r--r-- | 2459/CH14/EX14.13/Ex14_13.sce | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/2459/CH14/EX14.13/Ex14_13.sce b/2459/CH14/EX14.13/Ex14_13.sce new file mode 100644 index 000000000..43cf07d00 --- /dev/null +++ b/2459/CH14/EX14.13/Ex14_13.sce @@ -0,0 +1,19 @@ +// chapter14
+// example14.13
+// page 307
+
+Vcc=20 // V
+R3=10 // kilo ohm
+R4=2.2 // kilo ohm
+Rc=3.6 // kilo ohm
+
+V_B=Vcc*R4/(R3+R4)
+
+// replacing Cc by wire
+Req=R3*Rc/(R3+Rc)
+V_B2=Vcc*R4/(Req+R4)
+
+printf("biasing potential before replacing Cc = %.3f V \n",V_B)
+printf("biasing potential after replacing Cc = %.3f V \n \n",V_B2)
+printf("thus biasing potential of second stage changes.\nThis could cause the transistor to saturate and it would not work as amplifier.\n")
+printf("Also, we see the use of coupling capacitor to maintain \nindependent biasing potential for each stage.\nThis allows ac output from one stage to pass to next stage.\n")
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