A Design-of-Experiments-Based Approach to Design Planar Transformers for High-Voltage Low-Power Applications
Etienne Foray, Christian Martin, Bruno Allard, Pascal Bevilacqua
Abstract
Transformers with low losses are required in isolated high-to-low voltage, low-power applications, with strong constraints regarding the solution’s size and cost. A design approach based on a design-of-experiments (DoEs) that allows to study the influence of the main key design parameters of such a passive device. It leads to select few solutions whose performances are measured in a 400 to 12 V, 1 W prototype. The best transformer design allows reaching a 85% peak efficiency for a core volume of 2100 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> at an operating frequency of 275 kHz.
Topics & Concepts
TransformerPlanarComputer scienceVoltageHigh voltageElectrical engineeringLow voltageMaterials scienceElectronic engineeringEngineeringComputer graphics (images)Advancements in Semiconductor Devices and Circuit DesignSilicon Carbide Semiconductor TechnologiesSemiconductor materials and devices