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Isolated Flyback Converter Transformer Magnetizing Inductance (DCM) Calculator

Easily calculate and compute isolated flyback converter transformer magnetizing inductance (dcm) calculator with accurate equations, live formulas, and expert guidance.

Typically kept <= 0.45 to guarantee core demagnetization in DCM.

Calculated Result
238 μH

Primary Inductance (L_m)

Primary Inductance (L_m)

238 μH

Primary Magnetizing Inductance Micro H

238

Primary Peak Current Amps

2.61

Primary Rms Current Amps

1.01

Input Power Requirement Watts

52.9

238 — μH

Calculation Breakdown

  1. Applied FormulaSizes coupled inductor transformers for isolated offline switch-mode flyback power supplies operating in Discontinuous Conduction Mode (DCM).L_m = \frac{(V_{\text{in},\min} D_{\max})^2 \eta}{2 P_{\text{out}} f_{\text{sw}}}

Flyback Transformer Inductance Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.060119179238Primary Inductance (L_m)

What Is the Isolated Flyback Converter Transformer Magnetizing Inductance (DCM) Calculator?

This tool computes isolated flyback converter transformer magnetizing inductance (dcm) calculator with high precision arithmetic.

How Does the Isolated Flyback Converter Transformer Magnetizing Inductance (DCM) Calculator Work?

Sizes coupled inductor transformers for isolated offline switch-mode flyback power supplies operating in Discontinuous Conduction Mode (DCM).

Isolated Flyback Converter Transformer Magnetizing Inductance (DCM) Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

Lm=(Vin,min⁡Dmax⁡)2η2PoutfswL_m = \frac{(V_{\text{in},\min} D_{\max})^2 \eta}{2 P_{\text{out}} f_{\text{sw}}}

Sizes coupled inductor transformers for isolated offline switch-mode flyback power supplies operating in Discontinuous Conduction Mode (DCM).

How to Use the Isolated Flyback Converter Transformer Magnetizing Inductance (DCM) Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Isolated Flyback Converter Transformer Magnetizing Inductance (DCM) Calculator Example

Input Values:

minimumInputVoltageVolts:90
totalOutputPowerWatts:45
switchingFrequencyKhz:65
maximumDutyCycleDmax:0.45
estimatedPowerSupplyEfficiency:0.85
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required μH.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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