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For the following circuit from the NCV5171 datasheet:

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What is the meaning of a solid dot on one inductor and an open dot on the other?

Sittin Hawk
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  • Doe this [What do phase dots on an inductor mean?](https://electronics.stackexchange.com/questions/6657/what-do-phase-dots-on-an-inductor-mean) answer your question? – GrapefruitIsAwesome Jan 28 '22 at 12:01
  • I understand the concept of mutual inductance and transformers, but I usually only see solid dots on the inductors. I'm not familiar with dots that are patterned differently (one is solid, the other is open). – Sittin Hawk Jan 28 '22 at 12:19

1 Answers1

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I don't think it is intentional, and doesn't mean anything.

The dots show the phase of the winding because in the SEPIC they are coupled as in a 1:1 transformer. The open versus the solid dot is not meaningful.

Kevin White
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