Winding Layering Techniques Determine Interlayer Capacitance

Focus:

Adjacent winding layers in a transformer (or coupled inductor) have capacitance between them that varies in effect depending on how the successive layers are wound and connected. This article derives the effective capacitance for successive unidirectional and bidirectional layer windings. The choice of bidirectional or unidirectional layering affects interlayer capacitance, the distribution of voltages across the layers and the storage of electric field energy in the interlayer capacitance. This article explains the origins of these differences, how to calculate the interlayer capacitances, voltages and stored energies, and a technique for emulating unidirectional layering without the mechanical drawbacks.

What you’ll learn:

• How to understand the effects of unidirectional and bidirectional layering of windings on interlayer capacitance in transformers
• How to emulate unidirectional layering in transformer windings without the mechanical drawbacks

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Author & Publication:

Dennis Feucht, Innovatia Laboratories, Cayo, Belize, How2Power Today, Mar 21 2018

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