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.