US 11,699,954 B2
Multi-phase switching regulator including interleaving circuit and switching regulating method using the same
Sun-Kyu Lee, Suwon-si (KR); Nguyen Huyhieu, Suwon-si (KR); Dong-Jin Keum, Seoul (KR); Je-Hyung Yoon, Seoul (KR); and Hee-Seok Han, Yongin-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Sep. 6, 2021, as Appl. No. 17/467,388.
Application 17/467,388 is a continuation of application No. 16/540,249, filed on Aug. 14, 2019, granted, now 11,152,860.
Claims priority of application No. 10-2018-0120594 (KR), filed on Oct. 10, 2018.
Prior Publication US 2021/0399641 A1, Dec. 23, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H02M 3/158 (2006.01); H02M 1/08 (2006.01); H02M 1/00 (2006.01)
CPC H02M 3/1584 (2013.01) [H02M 1/08 (2013.01); H02M 3/158 (2013.01); H02M 1/0003 (2021.05); H02M 1/0009 (2021.05); H02M 3/1586 (2021.05)] 20 Claims
OG exemplary drawing
 
1. A multi-phase switching regulator, comprising:
a first regulating circuit configured to receive an input voltage and to output a first sub-output voltage with a first phase to a first output node by transforming the input voltage;
a second regulating circuit configured to receive the input voltage and to output a second sub-output voltage with a second phase to a second output node by transforming the input voltage;
a first current sensor configured to sense a first current flowing in the first output node;
a second current sensor configured to sense a second current flowing in the second output node; and
a current balancer configured to receive the first current and the second current and to output a current control signal to the second regulating circuit based on a first sensing value of the first current and a second sensing value of the second current, and
wherein the second regulating circuit adjusts a second current level of the second current to be equal to a first current level of the first current based on the current control signal.