Screenshot 2023 06 16 124429

eBook: Delving Into Power Density Vol. 6

June 20, 2023
Explore how wide-bandgap devices can enhance power designs, the significance of optimal heatsink methods for high-power devices, the potential of axial-flux permanent-magnet motors in electric vehicles.

Wide-bandgap (WBG) devices being integrated into transportation power design have significantly raised power levels – reducing fossil fuel usage. See how WBG devices outshine their silicon counterparts in enhancing medium and high-power systems, improving power density in inverters and actuators and motors in turn. But, optimal heatsink methods for medium to high-power devices are critical. Explore how the proper use of thermal interface materials (TIMs) can manage thermal transfer. TIMs are compared to traditional thermal grease to see which creates a minimal bond line thickness and the lowest thermal resistance at any one interface. The importance of printed circuit board (PCB) material thermal analysis is also covered.

In the vein of increased power density, axial-flux permanent-magnet (AFPM) motor advantages include small volume, low weight, and high torque – particularly revolutionizing electric in-wheel traction applications. The use of AFPM motors is highlighted alongside their challenges in rotor loss and heat dissipation.

The technological advancements culminate in how they have changed the unmanned aerial vehicle (UAV) industry. Power density is the focus, including how hybrid systems like fuel cells, supercapacitors and spark ignition engines can extend flight times, distance and increase payload. See how the Advanced Aircraft Company's six-rotor drone wins.

This content is sponsored by: