US 12,341,356 B2
Electronic device and method for controlling wireless charging in electronic device
Jeongman Lee, Suwon-si (KR); Beomwoo Gu, Suwon-si (KR); Jaeseok Park, Suwon-si (KR); Jaehyun Park, Suwon-si (KR); Sungku Yeo, Suwon-si (KR); Chongmin Lee, Suwon-si (KR); and Hyoseok Han, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on May 26, 2021, as Appl. No. 17/330,932.
Claims priority of application No. 10-2020-0064003 (KR), filed on May 28, 2020; and application No. 10-2020-0092342 (KR), filed on Jul. 24, 2020.
Prior Publication US 2021/0376668 A1, Dec. 2, 2021
Int. Cl. H02J 50/90 (2016.01); H02J 50/12 (2016.01); H02J 50/40 (2016.01); H02J 50/80 (2016.01)
CPC H02J 50/90 (2016.02) [H02J 50/12 (2016.02); H02J 50/40 (2016.02); H02J 50/80 (2016.02)] 18 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
a sensor;
a battery;
a resonance circuit configured to wirelessly receive power;
a rectification circuit configured to rectify an alternating current (AC) power provided from the resonance circuit into a direct current (DC) power;
a DC/DC converter configured to convert the DC power provided from the rectification circuit to output a converted power;
a charging control circuit configured to charge the battery using the converted power provided from the DC/DC converter; and
a controller,
wherein the controller is configured to:
identify whether the electronic device has moved based on a value sensed via the sensor,
based on identifying that the electronic device has moved, identify a voltage value of the DC power rectified via the rectification circuit, and
based on identifying that the voltage value of the DC power rectified via the rectification circuit increases, control the DC/DC converter to increase an impedance of a rear end of the rectification circuit by adjusting an output of the DC/DC converter, to decrease power transfer efficiency of the electronic device.