Ferrite Transformer Turns Calculation  
Transformer operation point P In= W     Core        
F =  Khz P out = W  
     
Bmax = Tesla         Ae   mm²      
Temperature core  °C         le  mm      
Curr. density Iin = A/mm²         Volt per 1 turn  Volt      
Curr.density Iout = A/mm²         Ae  Cm²      
eff. %                      
Vin = Volt Npri = Turn              
      Pri Wire  Ø = mm              
Vout = Volt Nsec = Turns              
Iout = A Sec Wire  Ø= mm              
                       
                         
The Form Factor of Various AC Waveforms
S.No. Type of Wave Form Factor(FF)
1. Sinusoidal wave π/2√2 = 1.11072073
2. Rectified sine wave (half-wave ) π/2 = 1.5707963
3. Rectified sine wave (full-wave ) π/2√2 = 1.11072073
4. Square wave 1/1= 1
5. Triangular waveform 2/√3 = 1.15470054
6. Sawtooth waveform 2/√3 = 1.15470054
7. Pulse wave √D/D=√D
8. Gaussian noise 1/√3/  1/2=2/√3
     
The form factor of AC is a very important parameter and deviation of FF from its specified value deteriorates the power transmission efficiency, device performance, and useful life of equipment. The insightful knowledge of FF helps in designing and optimizing AC systems and equipment. Engineers and technicians can regularly monitor form factors( FF) to ensure AC power systems’ reliable and efficient operation.