Korea Advanced Institute of Science and Technology

University-industry Cooperation Group of Kyung Hee University

Joung Ho Kim

Dong Ho Cho

Seung-Young Ahn

Gyeng-Chul Kim

Eun-Jung Kim

Ji-Yun Ryu

Gu Ho Jeong

Mi-Joo Kim

Yang Bae Chun

Il-Song Han

Dong Hyun Kim

Bom Son Lee

Ii-Song Han

Disclosed are a magnetic field generating apparatus and a method of generating a magnetic field using the same. A magnetic field generating apparatus according to an embodiment of the present disclosure includes a coil part configured to generate a magnetic field transmitted to the target to which wireless power is to be supplied; a first ferrite member configured to extend in the vicinity of the coil part a bar shape and penetrate an inner peripheral surface of the coil part; and a second ferrite member configured to extend in a dome shape in the vicinity of the coil part, surround the coil part, include an opening formed along the magnetic field transmission path.

Magnetic field generating apparatus having cannon shape and magnetic field generation method thereof

The present invention relates to a power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in a resonant frequency. More particularly, the present invention relates to a power supply and pickup system capable of maintaining the stability of efficiency of transmitting power to a pickup device from a power supply device even when a voltage or current changes by the variation in a resonant frequency. According to the power supply and pickup system of the present invention, Q-factor of a power supply and pickup system is set to a low value, a stability of efficiency of transmitting power to a pickup device from a power supply device is maintained even when a voltage of current changes by the variation in a resonant frequency.

Power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in resonant frequency

Growing community of inventors

Daejeon, South Korea

Joung Ho Kim