Isolated · Example
Flyback — turns ratio and load
A flyback converter for testing transformer ratio and output load separately.

Try this first
Change L2 from 1.5 µH to 3 µH, then compare several R4 load values.
The app opens this template, adds the recommended probe, and runs it once. Change the suggested value and run it again to compare the results.
Limits
This example works in the browser, but it is not a promoted LTspice comparison, hardware design, or certification. Check the app for model limits. It does not cover packaging, layout, thermal behavior, or operating conditions that are not listed.
Need batch runs or CI for this circuit?
Tell us what your workflow needs.