initial commit / add all books

1 files changed, 26 insertions, 0 deletions

diff --git a/2882/CH7/EX7.1/Ex7_1.sce b/2882/CH7/EX7.1/Ex7_1.sce
new file mode 100755
index 000000000..a48115874
--- /dev/null
+++ b/2882/CH7/EX7.1/Ex7_1.sce
@@ -0,0 +1,26 @@
+//Tested on Windows 7 Ultimate 32-bit

+//Chapter 7 Field Effect Transistors Pg no. 220

+clear;

+clc;

+

+//Given Data

+//Figure 7.7

+

+IDSS=15D-3;//drain saturation current in amperes

+VGS_cutoff=-5;//gate to source cutoff voltage in volts

+RD=300;//drain resistance in ohms

+

+//Solution

+

+VP=-VGS_cutoff;//pinch-off voltage in volts

+VDS=VP;//drain to source voltage in volts should be equal to VP or more than that for constant current region

+VGS=0;//gate to source voltage in volts

+ID=IDSS;//drain current in amperes is saturation current because VGS=0 volts

+VRD=ID*RD;//voltage drop across resistor

+VD_dash_min=VRD+VDS;//minimum source voltage required for constant current region in volts

+printf("Minimum VD'' required to place JFET into constant current region = %.1f Volts\n ",VD_dash_min);

+VD_dash=15;//given value of VD'

+if VD_dash>VD_dash_min then

+    ID=IDSS;//drain current in equal to saturation current

+end

+printf("Drain current for VD'' = %d Volts , ID = %d mA\n And increased voltage will appear as drop in drain source terminals.",VD_dash,ID*1000);