US 11,722,059 B2
DC-DC converter and display device including the same
Yang Uk Nam, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Sep. 8, 2022, as Appl. No. 17/930,527.
Application 17/930,527 is a continuation of application No. 17/332,073, filed on May 27, 2021, granted, now 11,463,001.
Claims priority of application No. 10-2020-0149653 (KR), filed on Nov. 10, 2020.
Prior Publication US 2023/0006553 A1, Jan. 5, 2023
Int. Cl. G09G 3/20 (2006.01); H02M 3/157 (2006.01); H02M 1/00 (2006.01); H02M 3/158 (2006.01)
CPC H02M 3/157 (2013.01) [G09G 3/20 (2013.01); H02M 1/0009 (2021.05); H02M 3/1584 (2013.01); G09G 2330/023 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A DC-DC converter comprising:
a voltage converter to convert an input voltage into an output voltage; and
an input terminal to receive a control signal, the input terminal electrically connected to the voltage converter,
wherein the voltage converter is configured to:
generate the output voltage having a first target level based on the control signal corresponding to a first frequency and a first duty ratio in a first mode, and
adjust the output voltage to have a second target level based on the control signal corresponding to a second frequency and a second duty ratio in a second mode,
wherein the second frequency is different from the first frequency, and the second duty ratio is different from the first duty ratio.