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Adding the K statement displays the phasing dot of the included inductors. Adjust the inductor positions to match the transformer polarity by using move (F7), rotate (Ctrl + R) and mirror (Ctrl + E) commands.The following is an equivalent to the statement above: Only a single K statement is needed per transformer LTspice applies a single coupling coefficient to all inductors within a transformer. For practical circuits, it is recommended you start with a coupling coefficient of 1. The last entry in the K statement is the coupling coefficient, which can vary between 0 and 1, where 1 represents no leakage inductance. Couple them using a single mutual inductance (K) statement via a SPICE directive:.Draft an inductor for each transformer winding.Here is the simple approach to simulate a transformer in LTspice IV: LTspice: Simple Steps for Simulating Transformers
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