Description
The planar magnetic structure offers many advantages for transformers and inductors – low profile, improved heat dissipation capability, greater power density, lower AC resistance, lower leakage inductance, and better reproducibility. High frequency AC current flow patterns are determined entirely by the magnetic field. In the planar structure, AC current flow patterns are inherently favorable for transformers, but unfavorable for fly back transformers with center leg gap. Using a specific core in a design example, this paper discussed the process for achieving an optimized transformer design, and discusses topological alternatives for operation at high frequencies.

PRESENTER
Lloyd Dixon – Lloyd has the distinction of being Unitrode's longest-term employee and, while now retired, is maintaining his interest and involvement in our power supply seminar program. With most of his professional career devoted to the semiconductor industry in an application engineering role, he has more recently made significant contributions in power factor correction and control loop design. His unorthodox approach to teaching magnetic design for switching power supplies is always well received.

Objective

Key Learning

Course Modules
1. Module 01