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Ideal Buck Converter Calculator — result sheet
Estimate buck-converter output voltage, output power, and input current from input voltage, duty cycle, load current, and efficiency.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: Vout = D Vin; Pout = Vout Iout; Pin = Pout/η; Iin = Pin/Vin.
The ideal duty-cycle relation is separated from the visitor-supplied efficiency so the difference between output voltage and input power is visible.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Input voltage — V; minimum 1.0E-6; maximum 1000000
- Duty cycle — %; minimum 1.0E-6; maximum 99.999999
- Output current — A; minimum 0; maximum 1000000
- Efficiency — %; minimum 1.0E-6; maximum 100
Worked example
| Input | Value |
|---|---|
| Input voltage | 24 |
| Duty cycle | 50 |
| Output current | 2 |
| Efficiency | 90 |
Output is 12 V and 24 W; input current is about 1.11 A.
Assumptions and limits
- The converter operates in a continuous ideal buck topology with duty cycle expressed as a percentage.
- Efficiency is a positive visitor-supplied fraction and output current is treated as a steady average.
- Switching ripple, inductor selection, transient response, thermal limits, protection, and component ratings are not modeled.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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