Automotive Cores

[INQ. NO. 2408M18] YUSEUNG Co., Ltd. was established in 2011, and has since been developing EGR cooler parts and powder metallurgy parts for internal combustion engines. YUSEUNG is a company that develops magnetic inductor cores and materials for power-conversion devices.
YUSEUNG recently began developing inductor cores for the On Board Chargers (OBCs) of electric hydrogen vehicles and hybrid vehicles, and confirmed delivery to Hyundai Motor Company in 2026.
YUSEUNG has a mission to ‘lead the way to energy-efficiency improvement through innovative technology and product development to reduce energy loss that inevitably occurs during power conversion.’
“We plan to expand our business to inductor core products in the future, leading the way in accelerating the transition to sustainable energy,” remarked the company’s CEO.

Inductor Core
An inductor is one of the three passive components that make up an electric circuit. It is made up of a core made by molding a soft magnetic powder material, and winding a conductive coil (wire) around it.
An inductor temporarily stores energy in the form of a magnetic field in the coil and acts to block changes in the current passing through it, and its size is determined by inductance, which is the ratio of electromotive force to current change (unit: henry, H).

Inductors are essential passive components that make up power circuits, and they play a role in smoothing the current and controlling noise in power circuits. They are also essential components used in power-conversion systems of power-driven devices such as electric vehicles.

Powder magnetic cores
Powder magnetic cores are manufactured by compressing insulating-coated metallic magnetic powder that has uniform voids distributed between the powder particles.
This unique design results in minimal magnetic flux leakage and high insulation proper-ties between the powder particles, thereby making them suitable for low-loss applications even in high-frequency environments.

  
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