公开(公告)号：US09867247B2

公开(公告)日：2018-01-09

申请号：US15214736

申请日：2016-07-20

Applicant: LITE-ON TECHNOLOGY CORP.

Inventor： Ting-Yi Hsu ,  Shang-Jin Yan ,  Yu-Kang Lo

IPC: H05B37/00 ,  H05B33/08

CPC classification number: H05B33/0845 ,  H05B33/0809 ,  H05B33/0815 ,  H05B33/0827 ,  H05B33/083 ,  H05B33/0887

Abstract: An LED driver of an LED tube includes: an AC-to-DC converting module converting an AC voltage received from a ballast into an intermediate DC voltage that is smaller than or equal to a predetermined threshold voltage, and a DC-to-DC converting module converting the intermediate DC voltage into a DC output voltage for driving LEDs of the LED tube.