Use this electronics calculation for a first-pass component, converter, signal, motor, or sensor estimate when the stated operating conditions and units match the device data.

Supply To Short (V) (V)

Required number input.

Short Circuit Current (A) (A)

Required number input.

Estimate output-stage dissipation during an op-amp short to ground as supply-to-short voltage magnitude times the measured short-circuit current; this is not total device power. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Output Stage Power (W) (W)

The resulting output stage power (w) returned as a number.

• Compact electronics formulas omit some combination of tolerances, temperature drift, bandwidth, loading, parasitics, noise spectrum, nonlinearity, clipping, calibration, layout, and device-specific limits. Typical datasheet values are not guaranteed limits.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Check the result against the current datasheet and worst-case operating corners, then verify the circuit or measurement with simulation and bench testing where failure matters.

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  Estimate a solar cell's maximum-power-point output from open-circuit voltage, short-circuit current, and measured fill factor at the same conditions.

• Transformer Total Loss

  Add winding copper, core iron, and other measured transformer losses in watts. This is a loss budget sum, not an efficiency estimate without input or output power.

• Motor Power Factor At Load

  Calculate balanced three-phase motor power factor as real input power divided by √3 times line voltage and line current; the result is a magnitude.