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Diffstat (limited to '317/CH8/EX8.3')
-rwxr-xr-x | 317/CH8/EX8.3/example3.sce | 27 | ||||
-rwxr-xr-x | 317/CH8/EX8.3/example3.txt | 1 |
2 files changed, 28 insertions, 0 deletions
diff --git a/317/CH8/EX8.3/example3.sce b/317/CH8/EX8.3/example3.sce new file mode 100755 index 000000000..eaf1d17c1 --- /dev/null +++ b/317/CH8/EX8.3/example3.sce @@ -0,0 +1,27 @@ +// find emitter current +// Electronic Principles +// By Albert Malvino , David Bates +// Seventh Edition +// The McGraw-Hill Companies +// Example 8-3, page 266 + +clear;clc; close; + +// Given data +R1=10*10^3;// in ohms +R2=2.2*10^3;// in ohms +Rc=3.6*10^3;// in ohms +Re=1*10^3;// in ohms +Bdc=200;// current gain +Vbb=1.8;// base supply voltage in volts +Vbe=0.7;// voltage across emitter in volts + +// Calculations +Rth=(R1*R2)/(R1+R2);// thevenin voltage in volts(R1||R2) +Rin=Bdc*Re;// input resistance of base +// as Rth<0.01*Rin, voltage divider is stiff +Ie=(Vbb-Vbe)/(Re+(Rth/Bdc));// emitter current in amperes +disp("Amperes",Ie,"Emitter Current") + +// Result +// voltage divider is stiff, emitter current is 1.09 milliamperes diff --git a/317/CH8/EX8.3/example3.txt b/317/CH8/EX8.3/example3.txt new file mode 100755 index 000000000..8ba3f87cd --- /dev/null +++ b/317/CH8/EX8.3/example3.txt @@ -0,0 +1 @@ +voltage divider is stiff, emitter current is 1.09 milliamperes |