Electricity Calculator Group

Transformers and Power Supplies Calculators

Work with transformer ratios, rectifiers, ripple, regulators, and converter power stages.

Choose the electrical result you need

Check component ratings, isolation requirements, temperature, waveform, and manufacturer limits.

Open the calculator whose primary output matches the decision at hand. Each worksheet shows its formula, loaded example, input definitions, limitations, and related calculations.

Transformers and Power Supplies worksheets

Transformer Turns RatioCalculate secondary voltage for a defined electrical case.Transformer CurrentCalculate secondary current for a defined electrical case.Transformer VA RatingCalculate apparent power for a defined electrical case.Transformer EfficiencyCalculate transformer efficiency for a defined electrical case.Transformer Voltage RegulationCalculate voltage regulation for a defined electrical case.Transformer Copper LossCalculate copper loss for a defined electrical case.Transformer Core LossCalculate core loss for a defined electrical case.Autotransformer RatingCalculate transferred apparent power for a defined electrical case.Current Transformer RatioCalculate primary current for a defined electrical case.Current Transformer BurdenCalculate cT burden for a defined electrical case.Flyback TransformerCalculate ideal secondary voltage for a defined electrical case.Rectifier DC OutputCalculate average DC output for a defined electrical case.Power Supply RippleCalculate ripple voltage for a defined electrical case.Smoothing CapacitorCalculate required capacitance for a defined electrical case.Linear Regulator HeatCalculate regulator heat for a defined electrical case.Converter Duty CycleCalculate ideal duty cycle for a defined electrical case.Buck ConverterCalculate ideal buck output for a defined electrical case.Boost ConverterCalculate ideal boost output for a defined electrical case.Buck-Boost ConverterCalculate output magnitude for a defined electrical case.Power Supply EfficiencyCalculate power-supply efficiency for a defined electrical case.

Use ratings and measurements deliberately

Keep voltage type, current path, frequency, phase arrangement, operating time, and temperature with the result. A value taken from a nameplate may describe a different condition from a meter reading.

These calculators support arithmetic and comparison. They do not replace electrical codes, equipment instructions, qualified design, safe isolation, or test procedures.