Design of Low-Profile Integrated Transformer and Inductor for Substrate-Embedding in 1-5kW Isolated GaN DC-DC Converters
Conference
Lee, H, Smet, V, Raj, PM et al. (2017). Design of Low-Profile Integrated Transformer and Inductor for Substrate-Embedding in 1-5kW Isolated GaN DC-DC Converters
. 2256-2262. 10.1109/ECTC.2017.312
Lee, H, Smet, V, Raj, PM et al. (2017). Design of Low-Profile Integrated Transformer and Inductor for Substrate-Embedding in 1-5kW Isolated GaN DC-DC Converters
. 2256-2262. 10.1109/ECTC.2017.312
This paper presents the design analysis of low-profile transformers in 1-5kW DC-DC resonant converters. Recent advances in GaN devices are expected to improve the efficiency and power density of power converters, while the magnetics still remain the major bottleneck to miniaturization. A low-profile integrated magnetic component design that enables low-loss and high-power density is proposed for 400V/48V DC-DC resonant converters with 1kW output power. The winding loss, core loss, and power density of the novel magnetic component design is analyzed and compared with the conventional design approach using planar cores. Higher power density and lower loss are demonstrated with the novel design approach.
