Copper-etched PCB stators (green) are sandwiched between permanent-magnet rotors in Infinitum’s ironless Aircore motor.
Credit: Infinitum
Conventional electric motors have heavy iron cores and copper windings. U.S. startup Infinitum has developed a motor with a stator that is a lightweight printed circuit board, eliminating the iron core with its weight and losses, and increasing both power density and efficiency. Infinitum is...
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