Transformer Design (Part 1): Maximizing Core Utilization

by Dennis Feucht, Innovatia Laboratories, Cayo, Belize, How2Power Today, Jan 15 2018

Focus:
A previous article explained how to determine the optimal number of turns and other conditions for maximizing use of the core in the magnetic part of coupled-inductor designs. This article extends the discussion to transformer designs. First, the earlier work on coupled inductors is reviewed, then key differences between coupled inductor and transformer design are identified and different criteria are derived for making the same maximum use of a transformer core. Ultimately, the limiting factors are core saturation and overheating, and operating frequency plays a role in determining which of these factors determines maximum core utilization.

What you’ll learn:

• How to determine the optimal number of turns leading to maximum core utilization in transformer designs

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