primary-ramp-induces-secondary-pulse - Electronic Circuits XV: Transformers and Coupled Inductors Step by Step

A finite primary interval can be paired with an ideal secondary pulse. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

The primary interval has a current ramp and a voltage pulse

The inductor ramp and the transformer voltage row are separate checks for the same declared primary voltage interval.

\Delta I_p={V_p\Delta t\over L}\quad;\quad V_s=V_p{N_s\over N_p}

More primary voltage raises both current ramp and secondary pulse

The interval, inductance, and turns ratio stay fixed.

\begin{array}{c|c|c}V_p&\Delta I_p&V_s\\4\ \text{V}&1\ \text{A}&2\ \text{V}\\8\ \text{V}&2\ \text{A}&4\ \text{V}\\12\ \text{V}&3\ \text{A}&6\ \text{V}\\\end{array}

A primary ramp induces the secondary pulse by turns ratio

The ramp and transformer rows are separate checked ledgers for one declared interval.

\Delta I_p=3\ \text{A}\quad V_s=6\ \text{V}