Three-wire colorful LED lamp strip

Abstract

The invention discloses a three-wire colorful LED lamp strip. The three-wire colorful LED lamp strip comprises a power supply plug, an input power supply wire, a controller, an output power supply wire and a lamp strip body electrically connected in sequence, wherein functional keys are arranged on the controller; three parallel main leads S1, S2 and S3, a single-color LED lamp string and a double-color LED lamp string are arranged in the lamp strip body; the single-color LED lamp string R is connected between the main leads S1 and S2; the double-color LED lamp string is connected between the main leads S2 and S3, and is serially connected by multiple double-color LED sets; and two LED base colors contained in the double-color LED sets and an LED color of the single-color LED lamp string are formed to a three-color combination. The LED lamp strip is formed by matching three main leads with a nonpolar blue-green double-color LED lamp string and a red LED lamp string, reduces one main wire compared with a traditional lamp string having four wires, simplifies the production process, saves the internal space, and reduces the manufacturing cost.

Description

technical field [0001] The invention relates to an LED light strip, in particular to a three-line multi-color LED light strip. Background technique [0002] Such as figure 1 As shown, it is a four-wire three-primary-color LED light strip with a traditional structure. One of the four wires is a common wire, and the other three are main wires with opposite polarities to the common wire. Red LED light strings are respectively set between the common wire and the three main wires ( R), green LED light string (G) and blue LED light string (B), through the controller to control the conduction and disconnection between the public line and the three main lines to realize the red LED light string (R), green light The on and off of the LED light string (G) and the blue LED light string (B), the red LED light string (R), the green LED light string (G) and the blue LED light string (B) can be individually It can be turned on or off, or it can be turned on at the same time to mix two or...

AI Technical Summary

Problems solved by technology

[0003] However, this traditional light strip structure still has major defects. For example, the four-wire system takes up a lot of wires, and the production process is relatively complicated. Since four wires and three circuits are required, when making a three-color light strip To ensure the insulation between the four wires, the lamp body must be made large enough, resulting in high cost. At the same time, the large-volume lamp body also leads to an excessively large bending radius, which loses the use value that the light strip should have; what is more serious is , since red LED light strings (R), green LED light strings (G) and blue LED light strings (B) are all linearly arranged, when mixing colors, especially when mixing white light with three primary colors, the same The distance between the red LED, green LED and blue LED of the node is relatively large, and the distortion degree is extremely high when mixing colors. This is why the industry often criticizes that RGB cannot mix pure white light.

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