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//chapter9
//example9.16
//page158
// for dc output
// for centre-tap circuit
n=5
Vp=230 // V rms
Rl=100 //ohm
Vs=Vp/n // V rms
Vsm=Vs*2^0.5 // maximum voltage across secondary
Vm=Vsm/2 // maximum voltage across half secondary winding
Vdc=2*Vm/%pi // since Vdc=Idc*Rl and Idc=2*Vm/(%pi*Rl)
// for bridge circuit
n_dash=5
Vp_dash=230 // V rms
Rl_dash=100 //ohm
Vs_dash=Vp_dash/n_dash// V rms
Vsm_dash=Vs*2^0.5 // maximum voltage across secondary
Vm_dash=Vsm_dash
Vdc_dash=2*Vm_dash/%pi // since Vdc=Idc*Rl and Idc=2*Vm/(%pi*Rl)
// for same dc output Vm must be same for both circuits i.e. n=5 for centre-tap and n=10 for bridge
// for centre-tap circuit
n1=5
Vs1=Vp/n1 // V rms
Vsm1=Vs1*2^0.5 // maximum voltage across secondary
Vm1=Vsm1/2
PIV1=2*Vm1
// for bridge circuit
n2=5
Vs2=Vp/n2 // V rms
Vsm2=Vs2*2^0.5 // maximum voltage across secondary
Vm2=Vsm2/2
PIV2=Vm2
printf("dc output voltage for centre-tap circuit = %.3f V \n",Vdc)
printf("dc output voltage for bridge circuit = %.3f V \n \n",Vdc_dash)
printf("for same output, PIV for centre-tap circuit = %.3f V and bridge circuit = %.3f V \n",PIV1,PIV2)
// the figure of transformer is for reference only. Also it cannot be plotted in scilab since scilab does not have centre-tap transformer
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