US 12,316,135 B2
Electronic device for wirelessly transmitting power including a plurality of coils, and method of operating the same
Beomwoo Gu, Suwon-si (KR); Jaehyun Park, Suwon-si (KR); Jaeseok Park, Suwon-si (KR); and Kangho Byun, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Aug. 2, 2023, as Appl. No. 18/364,403.
Application 18/364,403 is a continuation of application No. PCT/KR2023/009701, filed on Jul. 7, 2023.
Claims priority of application No. 10-2022-0099060 (KR), filed on Aug. 9, 2022.
Prior Publication US 2024/0055901 A1, Feb. 15, 2024
Int. Cl. H02J 50/12 (2016.01); H03H 7/01 (2006.01); H03H 7/38 (2006.01)
CPC H02J 50/12 (2016.02) [H03H 7/1741 (2013.01); H03H 7/38 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device for wirelessly transmitting power, comprising:
a first resonator including a first coil;
a second resonator including a second coil having a different size from the first coil;
an impedance matching circuit including at least one capacitor connected through a switch; and
a controller comprising processing circuitry,
wherein the controller is configured to:
identify to which of a first electronic device not mounted on the electronic device and a second electronic device mounted on the electronic device, the power is to be transmitted,
control to transmit the power through the first resonator by opening the switch, when the power is to be transmitted to the first electronic device, and
control to transmit the power through the second resonator by closing the switch, when the power is to be transmitted to the second electronic device,
wherein, when the power is transmitted to the first electronic device through the first resonator, a current based on an input voltage of the electronic device is conducted in the first coil by magnetic coupling between the second coil and the first coil.