Researchers enhance efficiency of small electric drives for pumps and fans

https://techxplore.com/news/2024-09-efficiency-small-electric-fans.html

"brushless integrated drives consuming less energy, quieter, lighter,  improved magnetic flux, 50% fewer capacitors... reduced cogging torques of claw pole motor drive by skewing/ slotting claws, with no added cost, minimizing claws' momentary engagement when motor turned, reducing vibrations 70%... aimplified control reduces switching losses, simplified current flow regulation... only switch drives on/ off once per desired rectangle... 3D printed circuit board windings generating ferrite core magnetic field"