initial commit / add all books

14 files changed, 246 insertions, 0 deletions

diff --git a/3754/CH27/EX27.10/27_10.sce b/3754/CH27/EX27.10/27_10.sce
new file mode 100644
index 000000000..a78b7e63b
--- /dev/null
+++ b/3754/CH27/EX27.10/27_10.sce
@@ -0,0 +1,16 @@
+clear//

+

+//Variables 

+

+RL = 8.0                    //Load resistance (in ohm)

+a = 10.0                    //Turns ratio

+ICQ = 500.0 * 10**-3        //Collector current (in Ampere)

+

+//Calculation

+

+R1L = a**2 * RL             //Effective load (in ohm)

+Poac = 1.0/2* ICQ**2 * R1L  //Maximum power delieverd (in watt)

+

+//Result

+

+printf("\n The maximum power delievered to load is  %0.3f  W.",Poac)

diff --git a/3754/CH27/EX27.11/27_11.sce b/3754/CH27/EX27.11/27_11.sce
new file mode 100644
index 000000000..e1a7b7b65
--- /dev/null
+++ b/3754/CH27/EX27.11/27_11.sce
@@ -0,0 +1,19 @@
+clear//

+

+//Variables 

+

+Ptrdc = 100.0 * 10**-3           //Maximum collector dissipated power (in watt)

+VCC = 10.0                       //Source voltage (in volts)

+RL = 16.0                        //Load resistance (in ohm)

+no=0.5;nc=0.5;

+

+//Calculation

+

+Poac = no * Ptrdc                //Maximum undistorted a.c. output power (in watt)

+ICQ = 2 * Poac / VCC             //Quiescent collector current (in Ampere)

+R1L = VCC / ICQ                  //Effective load resistance (in ohm)

+a = (R1L / RL)**0.5

+

+//Result

+

+printf("\n Maximum undistorted a.c. output power is  %0.3f  W.\nQuiescent collector current is  %0.3f  A.\nTransformer turns ratio is  %0.0f .",Poac,ICQ,a)

diff --git a/3754/CH27/EX27.13/27_13.sce b/3754/CH27/EX27.13/27_13.sce
new file mode 100644
index 000000000..59b08b757
--- /dev/null
+++ b/3754/CH27/EX27.13/27_13.sce
@@ -0,0 +1,14 @@
+clear//

+

+//Variables 

+

+RL = 1.0 * 10**3                   //Load resistance (in ohm)

+IC = 10.0 * 10**-3                 //Collector current (in Ampere)

+

+//Calculation

+

+PL = IC**2 * RL                    //Load power (in watt)

+

+//Result

+

+printf("\n Power delivered to the load is  %0.3f  W.",PL)

diff --git a/3754/CH27/EX27.14/27_14.sce b/3754/CH27/EX27.14/27_14.sce
new file mode 100644
index 000000000..deabf0934
--- /dev/null
+++ b/3754/CH27/EX27.14/27_14.sce
@@ -0,0 +1,14 @@
+clear//

+

+//Variables 

+

+RL = 8.0                   //Load resistance (in ohm)

+VP = 16.0                  //Peak output voltage (in volts)

+

+//Calculation

+

+P = VP**2 / (2 * RL)       //Power drawn from the source (in watt)  

+

+//Result

+

+printf("\n The power drawn from the source is  %0.3f  W.",P)

diff --git a/3754/CH27/EX27.15/27_15.sce b/3754/CH27/EX27.15/27_15.sce
new file mode 100644
index 000000000..fb5a98929
--- /dev/null
+++ b/3754/CH27/EX27.15/27_15.sce
@@ -0,0 +1,15 @@
+clear//

+

+//Variables 

+

+Pcdc = 10.0              //Power rating of amplifier (in watt)

+n = 0.785                //Maximum overall efficiency           

+

+//Calculation

+

+PT = 2 * Pcdc            //Total power dissipation of two transistors (in watt)

+Poac = (PT * n) / (1-n)  //Maximum power output (in watt)

+

+//Result

+

+printf("\n Maximum power output is  %0.2f  W.",Poac)

diff --git a/3754/CH27/EX27.16/27_16.sce b/3754/CH27/EX27.16/27_16.sce
new file mode 100644
index 000000000..379da2247
--- /dev/null
+++ b/3754/CH27/EX27.16/27_16.sce
@@ -0,0 +1,16 @@
+clear//

+

+//Variables 

+

+no = 0.6                  //efficiency 

+Pcdc = 2.5                //Maximum collector dissipation of each transistor (in watt)

+

+//Calculation

+

+PT = 2 * Pcdc            //Total power dissipation of two transistors (in watt)

+Pindc = PT / (1 - no )   //dc input power (in watt)

+Poac = no * Pindc        //ac output power (in watt)     

+

+//Result

+

+printf("\n The d.c. input power is  %0.3f  W.\nThe a.c. output power is  %0.3f  W.",Pindc,Poac)

diff --git a/3754/CH27/EX27.2/27_2.sce b/3754/CH27/EX27.2/27_2.sce
new file mode 100644
index 000000000..a39314119
--- /dev/null
+++ b/3754/CH27/EX27.2/27_2.sce
@@ -0,0 +1,28 @@
+clear//

+

+//Variables 

+

+VCC = 20.0                        //Source voltage (in volts)

+R1 = 10.0                         //Resistance (in kilo-ohm)

+R2 = 1.8                          //Resistance (in kilo-ohm)

+RC = 620.0 * 10**-3               //Collector resistance (in kilo-ohm)    

+RE = 200.0 * 10**-3               //Emitter resistance (in kilo-ohm)  

+RL = 1.2                          //Load resistance (in kilo-ohm)

+beta = 180.0                      //Common emitter current gain

+VBE = 0.7                         //Emitter-to-Base voltage (in volts)

+

+//Calculation

+

+VB = VCC * (R2 /(R1 + R2))        //Voltage drop across R2 (in volts)

+VE = VB - VBE                     //Voltage at the emitter (in volts)

+IE = VE / RE                      //Emitter current (in milli-Ampere)

+IC = IE                           //Collector current (in milli-Ampere)

+VCE = VCC - IE*(RC + RE)          //Collector-to-emitter voltage (in volts)

+ICEQ = IC                         //Collector current at Q (in milli-Ampere)

+VCEQ = VCE                        //Collector-to-emitter voltage at Q (in volts)  

+rL = RC * RL/(RC + RL)            //a.c. load resistance (in kilo-ohm)  

+PP = 2 * ICEQ * rL                //Compliance of the amplifier (in volts) 

+

+//Result

+

+printf("\n Overall compliance (PP) of the amplifier is  %0.2f  V.",PP)

diff --git a/3754/CH27/EX27.3/27_3.sce b/3754/CH27/EX27.3/27_3.sce
new file mode 100644
index 000000000..3d33e41f0
--- /dev/null
+++ b/3754/CH27/EX27.3/27_3.sce
@@ -0,0 +1,21 @@
+clear//

+

+//Variables 

+

+r1e = 8.0                       //a.c. load resistance (in ohm)

+RC = 220.0                      //Collector resistance (in ohm)

+RE = 47.0                       //Emitter resistance (in ohm)

+R1 = 4.7 * 10**3                //Resistance (in ohm)

+R2 = 470.0                      //Resistance (in ohm)

+beta = 50.0                     //Common emitter current gain

+

+//Calculation

+

+rL = RC                         //Load resistance (in ohm)

+Av = rL / r1e                   //Voltage gain

+Ai = beta                       //Current gain

+Ap = Av * Ai                    //Power gain  

+

+//Result

+

+printf("\n Voltage gain is  %0.3f  and Power gain is  %0.3f .",Av,Ap)

diff --git a/3754/CH27/EX27.4/27_4.sce b/3754/CH27/EX27.4/27_4.sce
new file mode 100644
index 000000000..e977ba30e
--- /dev/null
+++ b/3754/CH27/EX27.4/27_4.sce
@@ -0,0 +1,15 @@
+clear//

+

+//Variables 

+

+Ptrdc = 20.0                        //dc Power (in watt)

+Poac = 5.0                          //ac Power (in watt)     

+

+//Calculation

+

+ne = Poac / Ptrdc                   //Collector efficiency   

+P = Ptrdc                           //Power rating of the transistor

+

+//Result

+

+printf("\n Collector efficiency is  %0.3f percentage.\nPower rating of the transistor is  %0.3f  W.",ne*100,P)

diff --git a/3754/CH27/EX27.5/27_5.sce b/3754/CH27/EX27.5/27_5.sce
new file mode 100644
index 000000000..007dc9bde
--- /dev/null
+++ b/3754/CH27/EX27.5/27_5.sce
@@ -0,0 +1,14 @@
+clear//

+

+//Variables 

+

+Pcdc = 10.0                   //dc power (in watt)

+ne = 0.32                     //efficiency

+

+//Calculation

+

+Poac = ne * Pcdc / (1 - ne)   //a.c. power output (in watt)

+

+//Result

+

+printf("\n The a.c. power output is  %0.1f  W.",Poac)

diff --git a/3754/CH27/EX27.6/27_6.sce b/3754/CH27/EX27.6/27_6.sce
new file mode 100644
index 000000000..68cef3c02
--- /dev/null
+++ b/3754/CH27/EX27.6/27_6.sce
@@ -0,0 +1,16 @@
+clear//

+

+//Variables 

+

+nc = 0.5                       //Efficiency

+VCC = 24.0                     //Source voltage (in volts)

+Poac = 3.5                     //a.c. power output (in watt)

+

+//Calculation

+

+Ptrdc = Poac / nc              //dc power (in watt)

+Pcdc = Ptrdc - Poac            //Power dissipated as heat (in watt)   

+

+//Result

+

+printf("\n Total power within the circuit is  %0.3f  W.\nThe power Pcdc =  %0.3f  W is dissipated in the form of heat within the transistor collector region.",Ptrdc,Pcdc)

diff --git a/3754/CH27/EX27.7/27_7.sce b/3754/CH27/EX27.7/27_7.sce
new file mode 100644
index 000000000..a15ae20eb
--- /dev/null
+++ b/3754/CH27/EX27.7/27_7.sce
@@ -0,0 +1,30 @@
+clear//

+

+//Variables 

+

+VCC = 20.0                       //Supply voltage (in volts)

+VCEQ = 10.0                      //Collector-to-emitter voltage (in volts)

+ICQ = 600.0 * 10**-3             //Collector current (in Ampere)

+RL = 16.0                        //Load resistance (in ohm)

+Ip = 300.0 * 10**-3              //Output current variation (in Ampere)

+

+//Calculation

+

+Pindc = VCC * ICQ                //dc power supplied (in watt)

+PRLdc = ICQ**2 * RL              //dc power consumed by load resistor (in watt)  

+I = Ip / 2**0.5                  //r.m.s. value of Collector current (in Ampere) 

+Poac = I**2 * RL                 //a.c. power across load resistor (in ohm) 

+Ptrdc = Pindc - PRLdc            //dc power delievered to transistor (in watt)

+Pcdc = Ptrdc - Poac              //dc power wasted in transistor collector (in watt) 

+no = Poac / Pindc                //Overall efficiency

+nc = Poac / Ptrdc                //Collector efficiency  

+

+//Result

+

+printf("\n Power supplied by the d.c. source to the amplifier circuit is  %0.3f  W.",Pindc)

+printf("\n D.C. power consumed by the load resistor is  %0.3f  W.",PRLdc)

+printf("\n A.C. power developed across the load resistor is  %0.3f  W.",Poac)

+printf("\n D.C. power delivered to the transistor is  %0.3f  W.",Ptrdc)

+printf("\n D.C. power wasted in the transistor collector is  %0.3f  W.",Pcdc)

+printf("\n Overall efficiency is  %0.3f .",no)

+printf("\n Collector efficiency is  %0.1f percentage.",nc * 100)

diff --git a/3754/CH27/EX27.8/27_8.sce b/3754/CH27/EX27.8/27_8.sce
new file mode 100644
index 000000000..1809803e5
--- /dev/null
+++ b/3754/CH27/EX27.8/27_8.sce
@@ -0,0 +1,14 @@
+clear//

+

+//Variables 

+

+a = 15.0                     //Turns ratio

+RL = 8.0                     //Load resistance (in ohm)   

+

+//Calculation

+

+R1L = a**2 * RL              //Effective resistance (in ohm)   

+

+//Result

+

+printf("\n The effective resistance is  %0.3f  kilo-ohm.",R1L * 10**-3)

diff --git a/3754/CH27/EX27.9/27_9.sce b/3754/CH27/EX27.9/27_9.sce
new file mode 100644
index 000000000..2c92b28ba
--- /dev/null
+++ b/3754/CH27/EX27.9/27_9.sce
@@ -0,0 +1,14 @@
+clear//

+

+//Variables 

+

+RL = 16.0                    //Load resistance (in ohm)

+R1L = 10.0 * 10**3           //Effective resistance (in ohm)

+

+//Calculation

+

+a = (R1L / RL)**0.5          //Turns ratio

+

+//Result

+

+printf("\n Turns ratio is  %0.3f : 1.",a)