Engineering Workbench: free calculator sample report

Free website calculator example; not a report from the pre-release application.

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Inputs

Input and unit	Value
Input voltage (V)	5
Upper resistor R₁ (Ω)	10000
Lower resistor R₂ (Ω)	10000
R₁ tolerance (%)	1
R₂ tolerance (%)	1

Equation

V_{out} = V_{in} \times \frac{R_{2}}{R_{1} + R_{2}}

Result

Nominal output2.5V

Minimum output2.475V

Maximum output2.525V

Divider current0.25mA

Calculation record

Nominal resistor ratio

Vout = Vin \times \frac{R_{2}}{(R_{1} + R_{2})} = 2.5 V

Worst-case tolerance corners

Minimum uses R₁ high and R₂ low: 2.475 V.

Maximum uses R₁ low and R₂ high: 2.525 V.

Independent worked example

With 5 V, two 10 kΩ resistors, and ±1% tolerance on each, the nominal output is 2.5 V. The corner combinations give 2.475 V minimum and 2.525 V maximum. Divider current is 0.25 mA.

Assumptions & limitations

Unloaded DC divider with positive resistances and a fixed, nonnegative input voltage. Tolerances are independent worst-case bounds, not a statistical confidence interval. Load impedance, input-voltage tolerance, temperature coefficients, and self-heating are excluded. Enter resistances in ohms.

Calculation provenance: Engineering Workbench calculation engine; unloaded DC divider model.

This record uses the same free calculation engine as the interactive tool. Example results support independent review; they do not certify a design or validate the full Engineering Workbench application.

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