公开(公告)号：US11620941B2

公开(公告)日：2023-04-04

申请号：US17012755

申请日：2020-09-04

Applicant: Samsung Display Co., Ltd.

Inventor： Yoon Young Lee ,  Sung Chun Park ,  Chang Seok Chae

IPC: G09G3/3208 ,  H02M3/158 ,  H02M1/084

Abstract: A DC-DC includes a sensor, a determiner, a reference voltage controller and an output voltage controller. The sensor is configured to sense an output voltage to generate a sensed signal. The determiner is electrically connected to the sensor and is configured to determine a difference between the sensed signal and a first protection level for generating a determiner output. The reference voltage controller is electrically connected to the determiner and is configured to generate a second reference voltage based on a first reference voltage and a value of the determiner output. The output voltage controller is electrically connected to the sensor and is configured to output the output voltage based on an input voltage, a feedback voltage of the output voltage, and the second reference voltage.