![]() ![]() ![]() What wire size should i use? Hope you can guide on this or at least give a better reference on this. Nsec = (1.1 * (Vout + Vfwd) * NPRI) / (Vin (min) * DCmax) NPRI = (Vin(max) * 10 ^ 8) / (4 * F * Bmax * Ac) Primary Turns The standard formula for calculating the primary number of turns is given below: N (prim) Vin (nom) x 108 / 4 x f x Bmax x Ac Here N (prim) refers to the primary turn numbers. Calculated values: Input 220 Volts 2. EI core intersection square is 50 by 48 milimeters. Output voltage two times by 27 Volts 8 Ampers, simetric for amplifire. Transformer: 220V 2x27V 8A Input voltage 220 Volts. Rated Output Power Po = (12Vdc) * (40Amps) = 480WattsĢ.Ğstimated Input Power Pin = 480W/0.8 = 384Watts (for 80% efficiency)ģ.ĝC input voltages (A voltage doubler will used for 110Vac)Ī. Here are some calculations what I made and from what I build transformers. ![]() My project is a low voltage high current power supply using controller TL494.ġ. I have the following calculation and I cannot start in contructing my transformer since I stop in determining the wire size. I've been studying book of marty brown and abraham pressman but it lacks answer in determining the wire size. I'm just wondering how to determine the estimated wire size in AWG. ![]()
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