Granted Patent B2

US 12,426,136 · App. 17/893,809 · Granted Sep 23, 2025

Inventors: Yupeng Chen (Dongguan, CN); Fengyong Jiang (Dongguan, CN)

Assignee: HKC-US, LLC

H05B45/20H05B45/46H05B45/50

Abstract

Claims (66)

1. A circuit for a lighting assembly comprising:

a power supply;

a first light source connected with an output of the power supply;

a second light source connected with the output of the power supply, wherein the first and second light sources are connected with the output of the power supply in parallel;

at least one integrated circuit including a driver, wherein the at least one integrated circuit is configured to regulate current to each of the first light source and the second light source; and

a switch configured to select a brightness level of each of the first and second light sources, wherein the at least one integrated circuit, in regulating the current to each of the first light source and the second light source, is configured to:

reduce a first current to the first light source at a rate of reduction;

increase a second current to the second light source at a rate of increase, wherein the rate of reduction is greater than the rate of increase; and

reduce the first current and increase the second current until a predetermined dimming cycle is complete.

2. The circuit of claim 1 , wherein the first light source is a first series of light emitting diodes and the second light source is a second series of light emitting diodes.

3. The circuit of claim 1 , wherein the first light source is a two series of light emitting diodes in parallel and the second light source is a single series of light emitting diodes.

4. The circuit of claim 1 , wherein the first light source is configured to produce a first light having a Correlated Color Temperature from about 3000 Kelvin degrees to about 4000 Kelvin degrees, and the second light source is configured to produce a second light having a Correlated Color Temperature from about 1500 Kelvin degrees to about 3000 Kelvin degrees.

5. The circuit of claim 1 , wherein the at least one integrated circuit is a plurality of circuits each having an integrated internal driver.

6. The circuit of claim 5 , wherein one of the plurality of circuits is configured to regulate the first current to the first light source and another of the plurality of circuits is configured to regulate the second current to the second light source.

7. The circuit of claim 1 , wherein the switch includes a switch integrated circuit electrically coupled with one or more resistors.

8. The circuit of claim 1 , wherein the switch is configured to determine a corresponding Correlated Color Temperature for the selected brightness level and the at least one integrated circuit is configured to provide the first current and the second current to achieve the selected brightness level and the corresponding Correlated Color Temperature.

9. The circuit of claim 1 , further comprising:

a transistor configured to reduce fluctuations in illumination of the first and second light sources.

10. The circuit of claim 1 , further comprising:

a diode bridge configured to convert power from the power supply to DC power; and

one or more surge protectors electrically coupled with the diode bridge.

11. A method of controlling a lighting assembly, comprising:

providing electrical input from a power source to a diode bridge;

programming a switch integrated circuit to receive input and determine a corresponding Correlated Color Temperature for the lighting assembly, wherein the input is a selected brightness level;

programming one or more control integrated circuits to receive input from the switch integrated circuit; and

regulating current to first and second light sources via the one or more control integrated circuits to illuminate the first and second light sources simultaneously in response to the input from the switch integrated circuit to achieve the selected brightness level and the corresponding Correlated Color Temperature, wherein regulating current to first and second light sources via the one or more control integrated circuits includes:

reducing a first current to the first light source at a rate of reduction;

increasing a second current to the second light source at a rate of increase, wherein the rate of reduction is greater than the rate of increase; and

reducing the first current and increasing the second current until a predetermined dimming cycle is complete.

12. A method of controlling a lighting assembly, comprising:

providing electrical input from a power source to a diode bridge;

programming a switch integrated circuit to receive input and determine a corresponding Correlated Color Temperature for the lighting assembly, wherein the input is a selected brightness level;

programming one or more control integrated circuits to receive input from the switch integrated circuit; and

regulating current to first and second light sources via the one or more control integrated circuits to illuminate the first and second light sources simultaneously in response to the input from the switch integrated circuit to achieve the selected brightness level and the corresponding Correlated Color Temperature, wherein regulating current to first and second light sources via the one or more control integrated circuits includes:

reducing a first current to the first light source at a first rate of reduction;

reducing a second current to the second light source at a second rate of reduction, wherein the first rate of reduction is greater than the second rate of reduction; and

reducing the first and second currents until a predetermined dimming cycle is complete.

13. A method of controlling a lighting assembly, comprising:

providing electrical input from a power source to a diode bridge;

programming a switch integrated circuit to receive input and determine a corresponding Correlated Color Temperature for the lighting assembly, wherein the input is a selected brightness level;

programming one or more control integrated circuits to receive input from the switch integrated circuit; and

regulating current to first and second light sources via the one or more control integrated circuits to illuminate the first and second light sources simultaneously in response to the input from the switch integrated circuit to achieve the selected brightness level and the corresponding Correlated Color Temperature, wherein regulating current to first and second light sources via the one or more control integrated circuits includes:

reducing a first current to the first light source at a rate of reduction;

reducing a second current to the second light source at the rate of reduction; and

halting the reduction of the second current when the first and second currents result in a selected dimming level.

14. The method of controlling a lighting assembly of claim 13 , wherein regulating current to first and second light sources via the one or more control integrated circuits further includes:

continuing reduction of the first current until a predetermined dimming cycle is complete.

15. The method of controlling a light assembly of claim 13 , wherein the selected dimming level is about sixty percent of the full illumination of the second light source.

16. A circuit for a lighting assembly comprising:

a power supply;

a first light source connected with an output of the power supply;

a second light source connected with the output of the power supply, wherein the first and second light sources are connected with the output of the power supply in parallel;

at least one integrated circuit including a driver, wherein the at least one integrated circuit is configured to regulate current to each of the first light source and the second light source; and

a switch configured to select a brightness level of each of the first and second light sources, wherein the at least one integrated circuit, in regulating the current to each of the first light source and the second light source, is configured to:

reduce a first current to the first light source at a first rate of reduction;

reduce a second current to the second light source at a second rate of reduction, wherein the first rate of reduction is greater than the second rate of reduction; and

reduce the first and second currents until a predetermined dimming cycle is complete.

17. A circuit for a lighting assembly comprising:

a power supply;

a first light source connected with an output of the power supply;

a second light source connected with the output of the power supply, wherein the first and second light sources are connected with the output of the power supply in parallel;

at least one integrated circuit including a driver, wherein the at least one integrated circuit is configured to regulate current to each of the first light source and the second light source; and

a switch configured to select a brightness level of each of the first and second light sources, wherein the at least one integrated circuit, in regulating the current to each of the first light source and the second light source, is configured to:

reduce a first current to the first light source at a rate of reduction;

reduce a second current to the second light source at the rate of reduction; and

halt the reduction of the second current when the first and second currents result in a selected dimming level.

Assignments (2)

Priority Claims (1)

Continuity (1)

References Cited (41)