US 11,862,995 B2
Method, electronic device, and storage medium for performing adaptive impedance matching
Sungku Yeo, Suwon-si (KR); Jaeseok Park, Suwon-si (KR); Kangyoon Lee, Suwon-si (KR); Chongmin Lee, Suwon-si (KR); Imran Ali, Suwon-si (KR); Kwangtae Kim, Suwon-si (KR); Dongin Kim, Suwon-si (KR); Seongjin Oh, Suwon-si (KR); and Solhee In, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR); and Research & Business Foundation Sungkyunkwan University, Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR); and RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY, Suwon-si (KR)
Filed on Sep. 21, 2021, as Appl. No. 17/448,256.
Application 17/448,256 is a continuation of application No. PCT/KR2020/003700, filed on Mar. 18, 2020.
Claims priority of application No. 10-2019-0037254 (KR), filed on Mar. 29, 2019.
Prior Publication US 2022/0006333 A1, Jan. 6, 2022
Int. Cl. H02J 50/90 (2016.01); H02J 50/80 (2016.01); G06N 20/00 (2019.01); G06N 3/045 (2023.01); H02J 50/12 (2016.01)
CPC H02J 50/90 (2016.02) [G06N 3/045 (2023.01); G06N 20/00 (2019.01); H02J 50/80 (2016.02); H02J 50/12 (2016.02)] 13 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a first impedance matching circuit configured to perform first impedance matching on a power signal wirelessly received from a wireless power transmission device;
a second impedance matching circuit configured to perform second impedance matching on the first impedance-matched power signal using one of a plurality of impedance values;
a control circuit configured to perform control to change an impedance value of the second impedance matching circuit to an impedance value learned using an impedance matching network model in accordance with a power and a frequency of the second impedance-matched power signal; and
a power conversion circuit configured to convert the second impedance-matched power signal in an AC form into a power in a DC form for a battery according to the changed impedance value,
wherein the impedance matching network model is configured to sequentially acquire second impedance-matched power signals using the plurality of impedance values, identify a maximum power signal among the second impedance-matched power signals based on a comparison between powers of the second impedance-matched power signals, and change the impedance value of the second impedance matching circuit to the learned impedance value, which is an impedance value corresponding to the maximum power signal, among the plurality of impedance values.