What Is To Be Optimized In Magnetic Component Design?

by Dennis Feucht, Innovatia Laboratories, Cayo, Belize, How2Power Today, May 15 2014

Focus:
It is generally believed that the best strategy for optimizing the design of magnetic components is to design the magnetic and electrical aspects for equal, or near-equal power loss (i.e., core loss = winding loss.) This principle has a sound basis in the maximum power-transfer theorem from passive circuits theory. However, a different and not necessarily contradictory strategy is to maximize the utilization of the core. This article explores the differences in these strategies. It starts by reviewing the principles of power transfer optimization in magnetics design and then the principles of size optimization or maximizing core utilization by pushing core power loss and saturation to their limits. The article then discusses how these two strategies are related and concludes by describing a strategy for optimizing both power transfer and core utilization.

What you’ll learn:

• How to optimize transformers and coupled inductors for maximum power transfer and maximum core utilization

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