公开(公告)号：US20240036626A1

公开(公告)日：2024-02-01

申请号：US18137665

申请日：2023-04-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyunseok Nam ,  Seongmun Park ,  Yongsung Cho

IPC: G06F1/3203

CPC classification number: G06F1/3203

Abstract: An operating method of a power management integrated circuit includes outputting a first enable signal of a first regulator at a high level, determining whether a detection signal of a second regulator has a high level when a second enable signal of the second regulator has a low level, changing set values of the first regulator and the second regulator for a parallel mode when the detection signal has a high level, setting the first regulator and the second regulator to the changed set values, and outputting the second enable signal at a high level.

公开(公告)号：US11444538B2

公开(公告)日：2022-09-13

申请号：US16911763

申请日：2020-06-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seunggyu Lee ,  Seongmun Park ,  Jaehyuk Yang

IPC: H02M3/158 ,  G05F1/56 ,  G05F1/46 ,  G05F1/565 ,  H03K5/24 ,  G01R19/165 ,  H03K3/0233 ,  H02M1/00

Abstract: A switching regulator may be used to generate an output voltage from an input voltage. The switching regulator includes; an inductor including a first terminal and a second terminal that passes an inductor current from the first terminal to the second terminal, a first switch that applies the input voltage to the first terminal when turned ON, a second switch that applies a ground potential to the first terminal when turned ON, a feedback circuit configured to estimate a load receiving the output voltage, detect when the inductor current reaches an upper bound or a lower bound, and adjust the lower bound based on the estimated load, and a switch driver configured to control the first switch and the second switch, such that the inductor current is between the upper bound and the lower bound in response to at least one feedback signal provided by the feedback circuit.

公开(公告)号：US20240210976A1

公开(公告)日：2024-06-27

申请号：US18336278

申请日：2023-06-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyunseok NAM ,  Seongmun Park

IPC: G05F1/565 ,  G05F1/575

CPC classification number: G05F1/565 ,  G05F1/575

Abstract: A regulator circuit includes a first linear regulator circuit, configured to control a voltage on an output node based on a first reference voltage and to provide first current to the output node, and a second linear regulator circuit, connected in parallel to the first linear regulator circuit and configured to provide second current to the output node, and the second linear regulator circuit is further configured to control a magnitude of the second current based on a magnitude of the first current.