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MOSFET Resistive Conduction Loss

Online mosfet resistive conduction loss. Current is RMS during on-time; temperature-dependent resistance supplied separately.

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mosfet resistive conduction loss calculator online

Use mosfet resistive conduction loss online for rms current A, on resistance ohm, duty pct. Current is RMS during on-time; temperature-dependent resistance supplied separately. Ideal nominal component model. Verify topology, operating range, tolerances and ratings against the actual component datasheet.

How to use it

Enter rms current A. Set on resistance ohm, duty pct. Select Calculate and check the labeled output. Copy or download the JSON result.

Options and example settings

OptionChoices / valueExample default
rms current AMain input. Zero or positive values. 5
on resistance ohmOption. Positive values. 0.02
duty pctOption. Zero or positive values. Maximum 100.50

Calculation method

conduction_W = rms_current_A^2*on_resistance_ohm*duty_pct/100 (^ means exponentiation; trig functions ending in d use degrees).

Worked examples

Apply mosfet resistive conduction loss to the case below, keeping the displayed units and assumptions. Current is RMS during on-time; temperature-dependent resistance supplied separately.

MOSFET Resistive Conduction Loss — worked case

Settings: on resistance ohm: 0.02; duty pct: 50

Input:

5

Calculated result for these inputs:

Output:

{
  "conduction_W": 0.25
}

Choose the right tool

Match the topology before entering values: series and parallel networks, inverting and noninverting stages, and buck and boost converters use different equations. Component ratings, parasitics, protection and measured conditions require separate review.

Limitations and common mistakes

  • Current is RMS during on-time; temperature-dependent resistance supplied separately. Ideal nominal component model. Verify topology, operating range, tolerances and ratings against the actual component datasheet.
  • Use the displayed unit in every field. Ratios and percentages are different inputs; percent fields use values such as 25 rather than 0.25.

Frequently asked questions

How can I use mosfet resistive conduction loss calculator online?

Enter rms current A. Set on resistance ohm, duty pct. Select Calculate and check the labeled output. Copy or download the JSON result.

Technical references

Where is my input processed?

The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.

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