SBIR-STTR Award

The goal of this project is to develop Power-Dense Passives that can increase the Power Density to 25 kW/liter and facilitate operation at high ambient temperature of up to 150 C. The passives will consist of a core, winding and built-in advanced cooling system. Existing inductor and transformer configurations will be reviewed and a trade study will be conducted to identify an innovative core configuration. A detailed design of a prototype passive will be conducted to quantify the power density. A core material that offers lowest core loss will be chosen and the core will be configured to provide an easy path for flux and a high resistance path for eddy currents. The winding will be designed to minimize ac losses and will use high temperature insulation materials. The advanced cooling system will be designed to cool both the winding and the core uniformly and offer low thermal resistance. A preliminary layout of a passive is the end result of this effort