Magnetics & Transformers Formulas
Magnetics & Transformers formulas cover Transformer EMF Equation, Transformer VA Rating, Transformer Voltage Regulation and more. These calculators let you solve for any unknown by entering the values you already know. Use them for quick design checks, study, and verifying real circuits.
Magnetics & Transformers Formula Calculators
- Transformer EMF Equation E = 4.44 · f · N · Bmax · A
- Transformer VA Rating S = Vp × Ip = Vs × Is
- Transformer Voltage Regulation VR = (Vnl − Vfl) / Vfl
- Transformer Current Ratio Ip / Is = Ns / Np
- Transformer Copper Loss Pcu = Ip² Rp + Is² Rs
- Transformer Iron (Core) Loss Piron = Physt + Peddy
- Transformer Turns-per-Volt TPV = 1 / (4.44 · f · Bmax · A)
- Transformer Impedance Matching Zin = (Np/Ns)² · Zload
- Magnetomotive Force (MMF) F = N × I
- Magnetic Reluctance S = l / (µ0 · µr · A)
- Hopkinson’s Law (Magnetic Ohm’s Law) Φ = F / S
- Magnetic Field Strength (H) H = N · I / l
- Magnetic Coupling Coefficient k = M / √(L1 · L2)
- Inductance from Flux Linkage L = N · Φ / I
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