US 12,131,687 B2
Mini LED driving power supply and mini LED television
Shengping Cai, Shenzhen (CN); Jianhua Zhou, Shenzhen (CN); Zantian Chen, Shenzhen (CN); Hao Wei, Shenzhen (CN); and Xuan Yuan, Shenzhen (CN)
Assigned to SHENZHEN SKYWORTH-RGB ELECTRONIC CO., LTD, Guangdong (CN)
Appl. No. 18/044,447
Filed by SHENZHEN SKYWORTH-RGB ELECTRONIC CO., LTD, Guangdong (CN)
PCT Filed Dec. 30, 2021, PCT No. PCT/CN2021/143153
§ 371(c)(1), (2) Date Mar. 8, 2023,
PCT Pub. No. WO2023/005146, PCT Pub. Date Feb. 2, 2023.
Claims priority of application No. 202110855542.7 (CN), filed on Jul. 28, 2021.
Prior Publication US 2023/0343273 A1, Oct. 26, 2023
Int. Cl. G09G 3/32 (2016.01); H05B 45/355 (2020.01)
CPC G09G 3/32 (2013.01) [H05B 45/355 (2020.01); G09G 2310/0237 (2013.01); G09G 2330/028 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A MINI LED driving power supply, comprising a power supply board connecting with a mainboard and a MINI LED screen, wherein the power supply board comprises a first conversion module and a second conversion module;
the first conversion module is connected to the mainboard and the second conversion module;
the first conversion module is configured to output a power supply voltage to power the mainboard after the first conversion module is powered on, and output a first voltage and a second voltage to power the mainboard according to a power-on/off signal output by the mainboard, as well as output a first power supply and a high-voltage direct current to the second conversion module;
the second conversion module is connected to the MINI LED screen; and
the second conversion module is configured to convert the high-voltage direct current into a third voltage and output the third voltage to the MINI LED screen according to an enable signal output by the mainboard and the first power supply, to light up the MINI LED screen,
wherein the second conversion module comprises an enabling switching unit and a second conversion unit;
the enabling switching unit is connected to the first converting unit and the second converting unit, respectively;
the enabling switching unit is configured to convert the first power supply into a second power supply and output the second power supply to the second conversion unit according to the enable signal output by the mainboard;
the second conversion unit is connected to the MINI LED screen; and
the second conversion unit is configured to convert the high-voltage direct current into the third voltage to power the MINI LED screen according to the second power supply.