公开(公告)号：US20250096845A1

公开(公告)日：2025-03-20

申请号：US18889309

申请日：2024-09-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kye Seok YOON ,  In Kui CHO ,  Jung Hoon OH ,  Jang Yeol KIM ,  Hyun Joon LEE

IPC: H04B5/24 ,  H04B1/00 ,  H04B5/43

Abstract: A system for performing magnetic field communication is disclosed. According to one embodiment of the present disclosure, a system for performing magnetic field communication may include a first current mode power supply having a voltage and one or more inductors connected thereto; a power amplifier connected to the first current mode power supply; a first matching impedance unit including a first capacitor connected to the power amplifier; and a first magnetic field antenna including a coil and a resistor connected in parallel with the first matching impedance unit.

公开(公告)号：US20240421637A1

公开(公告)日：2024-12-19

申请号：US18668575

申请日：2024-05-20

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seong Min KIM ,  Gwang Zeen KO ,  Sang Won KIM ,  Kye Seok YOON ,  In Kui CHO

IPC: H02J50/12 ,  H02J7/00 ,  H02J50/40 ,  H02J50/80

Abstract: The present disclosure relates to a method and apparatus for performing multiple wireless charging. A method or performing wireless charging according to an embodiment of the present disclosure may comprise: identifying one or more receiving coils subject to wireless charging; setting a plurality of transmission frequencies based on a plurality of receiving coils being identified; and transmitting a wireless power transmission signal to the plurality of receiving coils using a plurality of transmitting coils connected to one inverter. Herein, a wireless power transmission signal transmitted from each transmitting coil belonging to the plurality of transmitting coils may be generated by applying the plurality of transmission frequencies in a pre-configured order.