Chapter 04 : Diode Circuits

Example 4.3, Page No 91

import math
#initialisation of variables
Vr=0.6    #v

#Calculations
i=(1-Vr)/2.01


#Results
print("The current i is= %.2f mA " %(i))

The current i is= 0.20 mA 

Example 4.4, Page No 92

import math
#initialisation of variables
Vr=0.7    #v

#Calculations
i2=((1-Vr)/300.0*10**3)
i1=3-i2

#Results
print("The current i is= %.2f mA " %(i1))

The current i is= 2.00 mA 

Example 4.5, Page No 95

import math
#initialisation of variables
Rl=9.0     # kohm
R=1.0      # kohm
Vr=1.0     #v

#Calculations
v0=(Rl/(R+Rl))*Vr

#Results
print("The output voltage is= %.2f V " %(v0))

The output voltage is= 0.90 V 

Example 4.7, Page No 101

import math
#initialisation of variables
Vs=1.0    #v
Rc=100.0   #ohm
RL=1000  #ohm

#Calculations
Vcmin=Vs*(2+(Rc/RL))

#Results
print("The concentration of germanium atom is= %.2f X 10^22 atom/cm^3 " %(Vcmin))

The concentration of germanium atom is= 2.10 X 10^22 atom/cm^3 

Example 4.8, Page No 105

import math

#initialisation of variables
Vrms=220.0   #v
Rf=10.0
Rl=500.0


#Calculations
Im=(math.sqrt(2.0)*Vrms)/(Rf+Rl)
Idc=Im/math.pi
Irms=Im/2
Vdc=(-Im*Rl)/math.pi
pd=Vrms*Irms
reg=Rf/Rl*100


#Required Formula
print("Peak load current is =  %.2f A " %Im)
print("DC load current is =  %.2f A " %Idc)
print("RMS load current is =  %.2f A " %Irms)
print("The dc diode voltage is =  %.2f V " %Vdc)
print("The total input power to the curcuit is =  %.2f A " %pd)
print("percentage regulation will go from 0 percent to %.f percent " %reg)

Peak load current is =  0.61 A 
DC load current is =  0.19 A 
RMS load current is =  0.31 A 
The dc diode voltage is =  -97.09 V 
The total input power to the curcuit is =  67.11 A 
percentage regulation will go from 0 percent to 2 percent 

Example 4.9 Page No 107

import math

#initialisation of variables
RL=100.0   #ohm
Rf=10.0    #ohm
Vm=5.0     #v
Vr=0.6     #v

#Calculations
Vdc=2*(((Vm/math.pi)*(RL/(RL+Rf)))-Vr)

#Results
print("The dc output voltage is = %.2f v " %Vdc)

The dc output voltage is = 1.69 v