公开(公告)号：US11470698B2

公开(公告)日：2022-10-11

申请号：US17098828

申请日：2020-11-16

Applicant: ABL IP Holding LLC

Inventor： Yelena N. Davis ,  Yaser Abdelsamed ,  Ryan D. Meldahl ,  Yan Rodriguez

IPC: H05B45/20 ,  H05B45/10 ,  H05B47/19 ,  H05B45/60 ,  H05B45/325

Abstract: A light fixture controller is configured for controlling the color temperature and intensity of a light fixture that includes at least two LED groups. Each LED group includes multiple LEDs configured to produce light at certain color temperatures. The light fixture controller receives a color temperature setting and an intensity setting for the light fixture and generates control signals based on these settings. A first control signal only turns on the first LED group for a first duration of a cycle and a second control signal only turns on the second LED group for a second duration of the cycle. The ratio between the first and second duration is determined based on the color temperature setting. The control signal further includes a dimming control signal for controlling a current flowing through the LED groups based on the intensity setting for the light fixture.

公开(公告)号：US20210068226A1

公开(公告)日：2021-03-04

申请号：US17098828

申请日：2020-11-16

Applicant: ABL IP Holding LLC

Inventor： Yelena N. Davis ,  Yaser Abdelsamed ,  Ryan D. Meldahl ,  Yan Rodriguez

IPC: H05B45/20 ,  H05B47/19 ,  H05B45/00 ,  H05B45/10 ,  H05B45/325

Abstract: A light fixture controller is configured for controlling the color temperature and intensity of a light fixture that includes at least two LED groups. Each LED group includes multiple LEDs configured to produce light at certain color temperatures. The light fixture controller receives a color temperature setting and an intensity setting for the light fixture and generates control signals based on these settings. A first control signal only turns on the first LED group for a first duration of a cycle and a second control signal only turns on the second LED group for a second duration of the cycle. The ratio between the first and second duration is determined based on the color temperature setting. The control signal further includes a dimming control signal for controlling a current flowing through the LED groups based on the intensity setting for the light fixture.