Control circuit of LED lamp strip
By designing a simple LED strip control circuit and using parallel modules and RGBW LED beads, the problems of complex structure and high cost of existing LED strips have been solved, achieving low-cost, high-brightness and flexible lighting effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-23
- Publication Date
- 2026-03-17
AI Technical Summary
Existing LED light strips have complex structures and high production costs.
Two parallel LED strip modules are used. Each module is controlled by an LED differential parallel protocol chip to control several LED beads. RGBW beads and current-limiting resistors are used. The circuit design is simple and is controlled by a 24V working voltage.
It achieves a simple structure, low production cost, high brightness and flexibility, can adapt to different lighting needs, and extend the life of LED beads.
Smart Images
Figure CN224006844U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LED light strip technology, specifically to a control circuit for an LED light strip. Background Technology
[0002] LED light strips are lighting products that use LED chips soldered onto a flexible circuit board and driven by a power supply to emit light. They are characterized by energy saving, environmental friendliness, flexibility, high brightness, and long lifespan, and are widely used in various lighting and decorative applications. However, existing LED light strips have complex structures and high production costs. Utility Model Content
[0003] To address the issue of the complex structure of existing LED light strips, this invention provides a control circuit for LED light strips. The specific technical solution of this invention is as follows:
[0004] A control circuit for an LED light strip includes: two parallel LED light strip modules with identical structures. Each LED light strip module includes an LED differential parallel protocol chip and a plurality of LED beads. The plurality of LED beads are connected in series and then connected in series with the LED differential parallel protocol chip. The LED differential parallel protocol chip is used to control the working state of the LED beads connected in series with itself.
[0005] Furthermore, the LED light strip module includes six LED beads connected in series. One end of each LED bead is connected to the operating voltage, and the other end is connected to an LED differential parallel protocol chip.
[0006] Furthermore, the LED beads are RGBW beads.
[0007] Furthermore, there are four signal connection lines between the LED beads.
[0008] Furthermore, resistors for current limiting are connected in series between the four signal connection lines of the six LED beads connected in series.
[0009] Furthermore, the LED differential parallel protocol chip is model TM512AC. Pins 2, 3, 4 and 5 of the LED differential parallel protocol chip are connected to the signal connection lines of the last LED in the series connection. Pins 2, 3, 4 and 5 are used to output control current.
[0010] Furthermore, the operating voltage is 24V.
[0011] Compared with the existing technology, the beneficial effects of this utility model are as follows: The control circuit of the LED light strip described in this application is provided with two LED light strip modules with the same structure. Each LED light strip module controls several LED beads through an LED differential parallel protocol chip. The structure is simple and the production cost is low. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the control circuit for an LED light strip in one embodiment of the present invention. Detailed Implementation
[0013] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.
[0014] In the description of this utility model, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.
[0015] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature, and in this description of the utility model, "at least" means one or more, unless otherwise explicitly specified.
[0016] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0017] In this utility model, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Above," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0018] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0019] like Figure 1 As shown, a control circuit for an LED light strip includes two parallel LED light strip modules with identical structures. Each LED light strip module includes an LED differential parallel protocol chip and several LED beads. The LED beads are connected in series and then connected in series with the LED differential parallel protocol chip. The LED differential parallel protocol chip is used to control the operating state of the LED beads connected in series with it. The control circuit for the LED light strip includes two identical LED light strip modules. This design allows the circuit to provide higher output power and flexibility while maintaining simplicity. The two LED light strip modules can be controlled independently or work together to adapt to different lighting needs. Through precise current control and efficient power management, this circuit can achieve high brightness output while maintaining low energy consumption. The dual-module design provides greater flexibility and scalability, allowing the number of modules to be increased or decreased as needed to adapt to different lighting requirements.
[0020] In one embodiment, the LED strip module includes six LED beads connected in series. One end of each LED bead is connected to the operating voltage, and the other end is connected to an LED differential parallel protocol chip.
[0021] In one embodiment, the LED beads are RGBW LED beads. The use of RGBW LED beads enables this circuit to achieve rich color changes and color temperature adjustment, making it suitable for various lighting and decorative scenarios.
[0022] In one embodiment, the LED beads have four signal connection lines.
[0023] In one embodiment, a current-limiting resistor is connected in series between each of the four signal connection lines of the six LEDs connected in series. The use of current-limiting resistors and precise current control helps to extend the lifespan of the LEDs and improve the reliability of the entire system.
[0024] In one embodiment, the LED differential parallel protocol chip is model TM512AC. Pins 2, 3, 4 and 5 of the LED differential parallel protocol chip are connected to the signal connection lines of the last LED in the series connection. Pins 2, 3, 4 and 5 are used to output control current.
[0025] In one embodiment, the operating voltage is 24V.
[0026] The control circuit of the LED light strip described in this application has two LED light strip modules with identical structures. Each LED light strip module controls several LED beads through an LED differential parallel protocol chip. The structure is simple and the production cost is low.
[0027] In the description of this specification, the terms "in one embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. The connection methods linked in the description of this specification have significant effects and practical utility.
[0028] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Any improvements and substitutions made using techniques known in the art based on this utility model fall within the protection scope of this utility model and should be defined by the claims. 。
Claims
1. A control circuit for an LED light strip, characterized in that, The application relates to an LED lamp strip module. The LED lamp strip module comprises two LED lamp strip modules in parallel, the two LED lamp strip modules are identical in structure, the LED lamp strip module comprises an LED differential parallel protocol chip and a plurality of LED lamp beads, the plurality of LED lamp beads are connected in series and connected in series with the LED differential parallel protocol chip, and the LED differential parallel protocol chip is used for controlling the working state of the LED lamp beads connected in series with the LED differential parallel protocol chip.
2. The control circuit for an LED light strip of claim 1, wherein, The LED lamp strip module comprises six LED lamp beads connected in series, one end of the LED lamp beads connected in series is connected with a working voltage, and the other end is connected with the LED differential parallel protocol chip.
3. The control circuit for an LED light strip of claim 2, wherein, The LED lamp beads are RGBW lamp beads.
4. The control circuit for an LED light strip of claim 2, wherein, The LED lamp beads are connected with four signal connection lines.
5. The control circuit for an LED light strip of claim 4, wherein, Six LED lamp beads are connected with resistors for current limiting in series.
6. The control circuit for an LED light strip of claim 5, wherein, The model of the LED differential parallel protocol chip is TM512AC, pins 2, 3, 4 and 5 of the LED differential parallel protocol chip are connected with signal connection lines of the last LED lamp bead in series, and the pins 2, 3, 4 and 5 are used for outputting control current.
7. The control circuit for an LED light strip of claim 2, wherein, The working voltage is 24V.