公开(公告)号：US11621639B2

公开(公告)日：2023-04-04

申请号：US17329226

申请日：2021-05-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyosang Youn ,  Minwoo Kim ,  Hyungju Park ,  Deokgi Lee ,  Changseok Chae

IPC: H02M3/158 ,  H02M3/18

Abstract: A switching regulator generates an output voltage from an input voltage and includes; a charge sharing circuit that selectively forms one of a first charge sharing path between a first flying capacitor and a second bootstrap capacitor and a second charge sharing path between a second flying capacitor and a first bootstrap capacitor based on first and second conversion modes.

公开(公告)号：US20240421709A1

公开(公告)日：2024-12-19

申请号：US18678387

申请日：2024-05-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Minwoo Kim ,  Hyungju Park ,  Minyong Jung

IPC: H02M3/158 ,  H02M1/00

Abstract: An electronic circuit includes a buck-boost converter and controller. The converter includes an inductive element, a plurality of switches and a plurality of drivers therein, and is configured to generate an output voltage in response to an input voltage. The controller configured to: (i) generate a ramp signal having a reset timing that is delayed as the input voltage decreases, (ii) generate a sensing voltage having a magnitude that is a function of a magnitude of an inductor current in the inductive element, (iii) generate a feedback voltage having a magnitude that is a function of a magnitude of the output voltage, (iv) generate a compensation voltage in response to the feedback voltage and a reference voltage, and (v) uniformly maintain the compensation voltage based on the ramp signal and the sensing voltage, and independent of any change in the input voltage.

公开(公告)号：US12040714B2

公开(公告)日：2024-07-16

申请号：US18130006

申请日：2023-04-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyosang Youn ,  Minwoo Kim ,  Hyungju Park ,  Deokgi Lee ,  Changseok Chae

IPC: H02M3/158 ,  H02M3/18

CPC classification number: H02M3/1582 ,  H02M3/18

Abstract: A switching regulator generates an output voltage from an input voltage and includes; a charge sharing circuit that selectively forms one of a first charge sharing path between a first flying capacitor and a second bootstrap capacitor and a second charge sharing path between a second flying capacitor and a first bootstrap capacitor based on first and second conversion modes.