公开(公告)号：US10334678B2

公开(公告)日：2019-06-25

申请号：US15727248

申请日：2017-10-06

Applicant: Cooper Technologies Company

Inventor： Raymond George Janik ,  Russell Scott Trask

IPC: H05B33/08

Abstract: A lighting device includes a light source that emits an illumination light. The light source includes a first group of light emitting diodes (LEDs) to emit a first light, a second group of LEDs to emit a second light, and a third group of LEDs to emit a third light. The second light is warmer light than the first light, and the third light is cooler light than the first light. The lighting device further includes a first difference amplifier that controls a first current flow through the second group of LEDs at least based on a magnitude of a current flowing through the light source. The lighting device also includes a second difference amplifier that controls a second current flow through the third group of LEDs at least based on the magnitude of the current flowing through the light source.

公开(公告)号：US20180103518A1

公开(公告)日：2018-04-12

申请号：US15727248

申请日：2017-10-06

Applicant: Cooper Technologies Company

Inventor： Raymond George Janik ,  Russell Scott Trask

IPC: H05B33/08

CPC classification number: H05B33/0845 ,  H05B33/0827 ,  H05B33/0857

Abstract: A lighting device includes a light source that emits an illumination light. The light source includes a first group of light emitting diodes (LEDs) to emit a first light, a second group of LEDs to emit a second light, and a third group of LEDs to emit a third light. The second light is warmer light than the first light, and the third light is cooler light than the first light. The lighting device further includes a first difference amplifier that controls a first current flow through the second group of LEDs at least based on a magnitude of a current flowing through the light source. The lighting device also includes a second difference amplifier that controls a second current flow through the third group of LEDs at least based on the magnitude of the current flowing through the light source.

公开(公告)号：US09936557B1

公开(公告)日：2018-04-03

申请号：US15458713

申请日：2017-03-14

Applicant: Cooper Technologies Company

Inventor： Raymond George Janik ,  Russell Scott Trask

IPC: H05B33/08

CPC classification number: H05B33/086 ,  H05B33/0827

Abstract: A lighting device include a first string of light emitting diodes (LEDs) to emit a white light having a warm white Correlated Color Temperature (CCT) and a second string of LEDs. The second string of LEDs includes blue light LEDs that emit a blue light and green light LEDs that emit a green light. The lighting device further includes a tuning circuit to adjust an amount of current flowing through the second string of LEDs. The warm white light, the blue light and the green light produce a combined light, and a CCT of the combined light is tuned by adjusting the amount of current flowing through the second string of LEDs.

公开(公告)号：US10064248B2

公开(公告)日：2018-08-28

申请号：US15456046

申请日：2017-03-10

Applicant: Cooper Technologies Company

Inventor： Raymond George Janik ,  Russell Scott Trask

IPC: H05B41/16 ,  H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0809 ,  H05B33/0845 ,  H05B33/0896

Abstract: A lighting device includes a ferroresonant transformer that receives an alternating current (AC) power signal and outputs an output power signal. The lighting device further includes a rectifier coupled to the ferroresonant transformer. The rectifier rectifies the output power signal from the ferroresonant transformer and generates a rectified power signal. The lighting device also includes a dc-to-dc converter coupled to the rectifier, wherein the dc-to-dc converter receives the rectified power signal and generates a regulated power signal.

公开(公告)号：US20170265259A1

公开(公告)日：2017-09-14

申请号：US15456046

申请日：2017-03-10

Applicant: Cooper Technologies Company

Inventor： Raymond George Janik ,  Russell Scott Trask

IPC: H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0809 ,  H05B33/0845 ,  H05B33/0896

Abstract: A lighting device includes a ferroresonant transformer that receives an alternating current (AC) power signal and outputs an output power signal. The lighting device further includes a rectifier coupled to the ferroresonant transformer. The rectifier rectifies the output power signal from the ferroresonant transformer and generates a rectified power signal. The lighting device also includes a dc-to-dc converter coupled to the rectifier, wherein the dc-to-dc converter receives the rectified power signal and generates a regulated power signal.