turns-voltage-ratio-three-row-scan - Electronic Circuits XV: Transformers and Coupled Inductors Step by Step

Secondary turns scan the ideal voltage ratio with exact rows. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

Secondary voltage is primary voltage times turns ratio

Each row is a checked ideal transformer with the same primary voltage and primary turns.

V_s=V_p{N_s\over N_p}

Three secondary turn counts scan the voltage ratio

Primary side values stay fixed while secondary turns choose the output voltage.

\begin{array}{c|c|c|c}N_p&N_s&V_p&V_s\\4&1&12\ \text{V}&3\ \text{V}\\4&2&12\ \text{V}&6\ \text{V}\\4&4&12\ \text{V}&12\ \text{V}\\\end{array}

The displayed voltage is sourced from the checked transformer row

The final row binds turn counts, primary voltage, and secondary voltage in one source object.

V_s=12\ \text{V}\cdot4/4=12\ \text{V}