US 12,456,931 B2
Power supply, electronic device, and method for controlling same
Jonghyun Shin, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on May 17, 2023, as Appl. No. 18/198,603.
Application 18/198,603 is a continuation of application No. PCT/KR2022/001343, filed on Jan. 26, 2022.
Claims priority of application No. 10-2021-0022734 (KR), filed on Feb. 19, 2021.
Prior Publication US 2023/0291331 A1, Sep. 14, 2023
Int. Cl. H02P 6/16 (2016.01); H02M 1/42 (2007.01); H02M 7/5387 (2007.01); H02P 27/08 (2006.01)
CPC H02M 7/53875 (2013.01) [H02M 1/4266 (2013.01); H02P 27/08 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a rectifier that rectifies an input alternating current (AC) voltage
into a direct current (DC) voltage;
an inverter that includes a plurality of switching elements to convert the DC voltage into a three-phase AC voltage and to output the converted three-phase AC voltage to a load;
a DC linker positioned between the rectifier and the inverter; and
a controller that controls the inverter to convert the DC voltage into the three-phase AC voltage according to a pulse width modulation (PWM) control signal,
wherein the controller controls the load:
to reduce a speed of the load upon detecting a stop signal for the PWM control signal; and
to stop a driving of the load in response to detecting a link voltage of the DC linker being a minimum value, and
wherein the controller detects a phase of an input voltage supplied from outside and determines the minimum value of the link voltage based on the detected phase.