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Diffstat (limited to '1514/CH7/EX7.1/ch7_1.sce')
| -rwxr-xr-x | 1514/CH7/EX7.1/ch7_1.sce | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/1514/CH7/EX7.1/ch7_1.sce b/1514/CH7/EX7.1/ch7_1.sce new file mode 100755 index 000000000..ae32e0ebd --- /dev/null +++ b/1514/CH7/EX7.1/ch7_1.sce @@ -0,0 +1,18 @@ +//chapter 7
+//example 7.1
+//page 196
+clear;
+clc ;
+//given
+Vce=20; //collector to emitter voltage in volts
+T=125 ; //temperature in degreeC
+excessT=T-25;
+D=2.81*excessT; //derating in power of device in mW
+
+//maximum power dissipation in mW
+PD=310-D; //from datasheet of 2N3904
+
+//max collector current in mA
+Ic=PD/Vce;
+
+printf('maximum Ic that can be used is %.2f mA',Ic);
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