diff options
Diffstat (limited to '3754/CH25/EX25.8/25_8.sce')
| -rw-r--r-- | 3754/CH25/EX25.8/25_8.sce | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/3754/CH25/EX25.8/25_8.sce b/3754/CH25/EX25.8/25_8.sce new file mode 100644 index 000000000..f6af109e5 --- /dev/null +++ b/3754/CH25/EX25.8/25_8.sce @@ -0,0 +1,30 @@ +clear//
+
+//Variables
+
+hie = 1500.0 //hie (in ohm)
+hfe = 50.0 //hfe
+hre = 50.0 * 10**-4 //hre
+hoe = 20.0 * 10**-6 //hoe
+R1 = 20.0 * 10**3 //Resistance (in ohm)
+R2 = 10.0 * 10**3 //Resistance (in ohm)
+RC = 5.0 * 10**3 //Collector resistance (in ohm)
+RE = 1.0 * 10**3 //Emitter resistance (in ohm)
+RL = 10.0 * 10**3 //Load resistance (in ohm)
+RS = 0 //Source resistance (in ohm)
+
+//Calculation
+
+Ai = -hfe
+rL = RC * RL /(RC + RL) //a.c. load resistance (in ohm)
+Ri = hie //Input resistance (in ohm)
+Ris = (R1*R2*Ri)/(Ri*R1 + Ri*R2 + R1*R2) //Input resistance of the amplified stage (in ohm)
+Ro = 1 / hoe //Output resistance (in ohm)
+Ros = Ro * rL /(Ro + rL) //Output resistance of the stage (in ohm)
+Av = Ai * rL / Ri //Voltage gain
+Avs = Av * Ris / (RS + Ris) //Voltage gain of the stage
+Ais = Ai //Current gain of the stage
+
+//Result
+
+printf("\n Input resistance of the stage is %0.2f kilo-ohm.\nOutput resistance of the stage is %0.1f kilo-ohm.\nVoltage gain of the stage is %0.0f .\nCurrent gain of the stage is %0.3f .",Ris*10**-3,Ros*10**-3,Avs,Ai)
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