# US 2014/0151727 A1 · Structure of led light color mixing circuit

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2014/0151727 A1
- Document ID: US20140151727A1
- Status: Published application
- Kind: A1
- Application number: 13/691,847
- Filed: 2012-12-03
- Published: 2014-06-05
- Earliest claimed: 2012-12-03
- Inventors: MEI-LING PENG
- Web page: https://patentgrep.com/patent/US20140151727A1

## CPC

- H05B 45/42: Antiparallel configurations
- H05B 45/20: Controlling the colour of the light
- H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS

## Abstract

The present invention provides a structure of color mixing circuit of LED light. The LED light includes two input terminals and two output terminals. The two input terminals are respectively an input terminal of reverse parallel connection of any two light-emitting chips of three primary-color light-emitting chips of R, G, B and an anode input terminal of the remaining light-emitting chip and the two output terminals are respectively an output terminal of reverse parallel connection of any two light-emitting chips of the three primary-color light-emitting chips of R, G, B and a cathode output terminal of the remaining light-emitting chip. The structure is simple and the purposes of reducing the number of IC control chips and synchronous color change of light-emitting chips are achieved with modification only made on electrical connection among the three primary-color light-emitting chips in realizing operation of a group of LED lights connected in series.

## Claims

### Claim 1

A structure color mixing circuit of LED light, characterized in that the LED light comprises two separate input terminals and two separate output terminals, wherein the two input terminals are respectively an input terminal of reverse parallel connection of any two light-emitting chips of the three primary-color light-emitting chips of R, G, B and an anode input terminal of the remaining single light-emitting chip and the two output terminals are respectively an output terminal of reverse parallel connection of any two light-emitting chips of the three primary-color light-emitting chips of R, G, B and a cathode output terminal of the remaining single light-emitting chip, two integrated circuits being respectively connected to and controlling the reverse parallel connection of an two light-emitting chips and the remaining single light-emitting chip.

### Claim 2 (depends on 1)

The structure color mixing circuit of LED light according to claim 1, characterized in that the two input terminals are respectively an input terminal of parallel connection of an anode of an R primary-color light-emitting chip and a cathode of a G primary-color light-emitting chip and an anode input terminal of a B primary-color light-emitting chip and the two output terminals are respectively an output terminal of parallel connection of a cathode of the R primary-color light-emitting chip and an anode of the G primary-color light-emitting chip and a cathode input terminal of the B primary-color light-emitting chip.

### Claim 3 (depends on 1)

The structure color mixing circuit of LED light according to claim 1, characterized in that the two input terminals are respectively an input terminal of parallel connection of an anode of an R primary-color light-emitting chip and a cathode of a B primary-color light-emitting chip and an anode input terminal of a G primary-color light-emitting chip and the two output terminals are respectively an output terminal of parallel connection of a cathode of the R primary-color light-emitting chip and an anode of the B primary-color light-emitting chip and a cathode input terminal of the G primary-color light-emitting chip.

### Claim 4 (depends on 1)

The structure color mixing circuit of LED light according to claim 1, characterized in that the two input terminals are respectively an input terminal of parallel connection of an anode of a G primary-color light-emitting chip and a cathode of a B primary-color light-emitting chip and an anode input terminal of an R primary-color light-emitting chip and the two output terminals are respectively an output terminal of parallel connection of a cathode of the G primary-color light-emitting chip and an anode of the B primary-color light-emitting chip and a cathode input terminal of the R primary-color light-emitting chip.

### Claim 5 (depends on 1)

The structure color mixing circuit of LED light according to claim 1, characterized in that the two input terminals are respectively an input terminal of parallel connection of an anode of a G primary-color light-emitting chip and a cathode of an R primary-color light-emitting chip and an anode input terminal of a B primary-color light-emitting chip and the two output terminals are respectively an output terminal of parallel connection of a cathode of the G primary-color light-emitting chip and an anode of the R primary-color light-emitting chip and a cathode input terminal of the B primary-color light-emitting chip.

### Claim 6 (depends on 1)

The structure color mixing circuit of LED light according to claim 1, characterized in that the two input terminals are respectively an input terminal of parallel connection of an anode of a B primary-color light-emitting chip and a cathode of an R primary-color light-emitting chip and an anode input terminal of a G primary-color light-emitting chip and the two output terminals are respectively an output terminal of parallel connection of a cathode of the B primary-color light-emitting chip and an anode of the R primary-color light-emitting chip and a cathode input terminal of the G primary-color light-emitting chip.

### Claim 7 (depends on 1)

The structure color mixing circuit of LED light according to claim 1, characterized in that the two input terminals are respectively an input terminal of parallel connection of an anode of a B primary-color light-emitting chip and a cathode of a G primary-color light-emitting chip and an anode input terminal of an R primary-color light-emitting chip and the two output terminals are respectively an output terminal of parallel connection of a cathode of the B primary-color light-emitting chip and an anode of the G primary-color light-emitting chip and a cathode input terminal of the R primary-color light-emitting chip.