Ferrite Transformer Turns Calculation  
Transformer operation point  
F =  Khz  
Bmax = Tesla  
Temperature core  °C  
Curr. density Iin = A/mm²  
Curr.density Iout = A/mm²  
eff. %    
Vin = Volt  
Vout = Volt  
Iout = A  
Npri = Turn  
Pri Wire  Ø = mm  
Nsec = Turns  
Sec Wire  Ø= mm  
P In= W  
P out = W  
Volt per 1 turn =  Volt  
Ae =  Cm²  
  Core    
 
   
Ae  mm² le 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.