公开(公告)号：US11324091B2

公开(公告)日：2022-05-03

申请号：US16267112

申请日：2019-02-04

Applicant: ABL IP Holding LLC

Inventor： Jie Wang

IPC: H05B33/08 ,  H05B45/385 ,  H05B45/00 ,  H02J7/00

Abstract: A constant power backup power supply for LED lighting fixtures is disclosed. The power supply includes a storage battery that is charged while an AC power source is in an ON condition. When AC power transitions to an OFF condition, a capacitor bank charged by the battery supplies current to the primary side of a flyback converter operating in discontinuous conduction mode. The secondary side of the flyback converter supplies constant output power to the LED lighting fixture for an arbitrary output voltage within a predetermined range.

公开(公告)号：US12004277B2

公开(公告)日：2024-06-04

申请号：US17733655

申请日：2022-04-29

Applicant: ABL IP HOLDING LLC

Inventor： Jie Wang

IPC: H05B45/385 ,  H02J7/00 ,  H05B44/00 ,  H05B45/00

CPC classification number: H05B45/385 ,  H02J7/00 ,  H02J7/0068 ,  H02J7/007 ,  H05B44/00 ,  H05B45/00

Abstract: A constant power backup power supply for LED lighting fixtures is disclosed. The power supply includes a storage battery that is charged while an AC power source is in an ON condition. When AC power transitions to an OFF condition, a capacitor bank charged by the battery supplies current to the primary side of a flyback converter operating in discontinuous conduction mode. The secondary side of the flyback converter supplies constant output power to the LED lighting fixture for an arbitrary output voltage within a predetermined range.