diff options
Diffstat (limited to '3809/CH17')
| -rw-r--r-- | 3809/CH17/EX17.1/EX17_1.sce | 17 | ||||
| -rw-r--r-- | 3809/CH17/EX17.2/EX17_2.sce | 13 | ||||
| -rw-r--r-- | 3809/CH17/EX17.3/EX17_3.sce | 18 | ||||
| -rw-r--r-- | 3809/CH17/EX17.4/EX17_4.sce | 20 | ||||
| -rw-r--r-- | 3809/CH17/EX17.5/EX17_5.sce | 21 | ||||
| -rw-r--r-- | 3809/CH17/EX17.6/EX17_6.sce | 21 | ||||
| -rw-r--r-- | 3809/CH17/EX17.7/EX17_7.sce | 15 |
7 files changed, 125 insertions, 0 deletions
diff --git a/3809/CH17/EX17.1/EX17_1.sce b/3809/CH17/EX17.1/EX17_1.sce new file mode 100644 index 000000000..b56218817 --- /dev/null +++ b/3809/CH17/EX17.1/EX17_1.sce @@ -0,0 +1,17 @@ +//Chapter 17, Example 17.1 +clc +//Initialisation +rd=100*10**3 //resistance in ohm +gm=2*10**-3 //in seimens +RD=2*10**3 //resistance in ohm +RG=10**6 //resistance in ohm + +//Calculation +ro=((rd*RD)/(rd+RD)) //Input Resistance +v=-gm*ro //Small Signal Voltage Gain +ri=RG //Input Resistance + +//Results +printf("Small Signal Voltage Gain = %.1f \n",v) +printf("Input Resistance, ri = %d MOhm \n",ri/10**6) +printf("Ouput Resistance, ro = %d kOhm \n",round(ro/10**3)) diff --git a/3809/CH17/EX17.2/EX17_2.sce b/3809/CH17/EX17.2/EX17_2.sce new file mode 100644 index 000000000..145890ab0 --- /dev/null +++ b/3809/CH17/EX17.2/EX17_2.sce @@ -0,0 +1,13 @@ +//Chapter 17, Example 17.2 +clc +//Initialisation +C=10**-6 //capacitance in farad +RG=10**6 //resistance in ohm +pi=3.14 //pi + + +//Calculation +fc=1/(2*pi*C*RG) //frequency in Hz + +//Results +printf("Fc = %.2f Hz",fc ) diff --git a/3809/CH17/EX17.3/EX17_3.sce b/3809/CH17/EX17.3/EX17_3.sce new file mode 100644 index 000000000..e865e5b54 --- /dev/null +++ b/3809/CH17/EX17.3/EX17_3.sce @@ -0,0 +1,18 @@ +//Chapter 17, Example 17.3 +clc +//Initialisation +VDD=15 //voltage +Vq=10 //quiescent output voltage +VGS=3 //voltage +RD=2.5*10**3 //resistance in Ohm + +//Calculation +VR=VDD-Vq //voltage +ID=VR/RD //quiescent drain current +Rs=VGS/ID //resistance in ohm + + +//Results +printf("Rs = %.1f kOhm\n",Rs/1000) +printf("ID = %d mA\n",ID*1000) +printf("VR = %d V",VR) diff --git a/3809/CH17/EX17.4/EX17_4.sce b/3809/CH17/EX17.4/EX17_4.sce new file mode 100644 index 000000000..13e60ece7 --- /dev/null +++ b/3809/CH17/EX17.4/EX17_4.sce @@ -0,0 +1,20 @@ +//Chapter 17, Example 17.4 +clc +//Initialisation +VDD=15 //voltage +Vq=10 //quiescent output voltage +RD=2.5*10**3 //resistance in Ohm +Vp=-6 //voltage +IDSS=8*10**-3 //saturation drain current in amp + +//Calculation +VR=VDD-Vq //voltage +ID=VR/RD //quiescent drain current +VGS=Vp*(1-sqrt(ID/IDSS)) //voltage +Rs=VGS/ID //resistance in ohm + + +//Results +printf("Rs = %.1f kOhm\n",-Rs/1000) +printf("ID = %d mA\n",ID*1000) +printf("VGS = %d V\n",VGS) diff --git a/3809/CH17/EX17.5/EX17_5.sce b/3809/CH17/EX17.5/EX17_5.sce new file mode 100644 index 000000000..d64959db0 --- /dev/null +++ b/3809/CH17/EX17.5/EX17_5.sce @@ -0,0 +1,21 @@ +//Chapter 17, Example 17.5 +clc +//Initialisation +r1=10**6 //resistance in ohm +r2=2*10**6 //resistance in ohm +Rd=3.3*10**3 //resistance in ohm +Rs=10**3 //resistance in ohm +c=10**-6 //capactance in farad +pi=3.14 //pi + +//Calculation +ri=(r1*r2)/(r1+r2) //resistance in R1 & R2 parallel +ro=Rd //output resistance +av=-Rd/Rs //votlage gain +fc=1/(2*pi*ri*c) //frequency in Hz + +//Results +printf("Input resistance ri = %d kOhm\n",round(ri/1000)) +printf("Output resistance ro = %.1f kOhm\n",ro/1000) +printf("Small Signal Voltage Gain = %.1f\n",av) +printf("Fo = %.2f Hz ",fc) diff --git a/3809/CH17/EX17.6/EX17_6.sce b/3809/CH17/EX17.6/EX17_6.sce new file mode 100644 index 000000000..d362fee18 --- /dev/null +++ b/3809/CH17/EX17.6/EX17_6.sce @@ -0,0 +1,21 @@ +//Chapter 17, Example 17.6 +clc +//Initialisation +rd=50*100*3 //resistance in ohm +gm=72*10**-3 //in siemens +Rd=3.3*10**3 //resistance in ohm +Rs=10**3 //resistance in ohm + + + +//Calculation +av=-Rd/Rs //votlage gain from eq 17.7 +b=gm*Rd +c=gm*Rs +av1=-(b)/(1+(c)+((Rd+Rs)/rd)) //voltage gain from eq 17.8 +av2=-(b)/(1+(c)) //voltage gain from eq 17.9 + +//Results +printf("From Eq 17.7, Gain = %.1f\n",av) +printf("From Eq 17.8, Gain = %.3f\n",av1) +printf("From Eq 17.9, Gain = %.3f\n",av2) diff --git a/3809/CH17/EX17.7/EX17_7.sce b/3809/CH17/EX17.7/EX17_7.sce new file mode 100644 index 000000000..57d8da13b --- /dev/null +++ b/3809/CH17/EX17.7/EX17_7.sce @@ -0,0 +1,15 @@ +//Chapter 17, Example 17.7
+clc
+//Initialisation
+gm=72*10**-3 //in siemens
+Rd=3.3*10**3 //resistance in ohm
+
+
+
+//Calculation
+b=-gm*Rd //gain of the circuit
+
+
+//Results
+printf(" Gain = %.1f\n",round(b))
+
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