Multi-functional LED dimmer

Abstract

This utility model discloses a multifunctional LED dimmer, which includes a dimming circuit board, a color temperature switching switch, a color temperature fine-tuning potentiometer, and multiple color temperature setting units disposed on the dimming circuit board. The dimming circuit board has a first connection terminal and a second connection terminal. The color temperature switching switch has multiple switching positions. The input terminal of each switching position of the color temperature switching switch is connected to the first connection terminal, and the output terminal of each switching position of the color temperature switching switch is respectively connected to the input terminal of each color temperature setting unit. The output terminal of each color temperature setting unit is connected to the movable contact of the color temperature fine-tuning potentiometer, and a fixed contact of the color temperature fine-tuning potentiometer is connected to the second connection terminal. The resistance values ​​of each color temperature setting unit are different. This utility model's multifunctional LED dimmer has a color temperature fine-tuning function, enabling different adjustable color temperature LED light sources to be adjusted to the same color temperature.

Description

Technical Field

[0001] This utility model relates to the field of LED lighting fixtures, and in particular to a multifunctional LED dimmer. Background Technology

[0002] Existing dimming circuits using the RX dimming principle all require an additional dimmer. The dimmer inputs different color temperature voltage signals and brightness voltage signals to the RX driver of the dimming circuit, thereby controlling the color temperature and brightness of the adjustable color temperature LED light source. However, existing dimmers can generally only switch between multiple color temperature levels. Due to manufacturing errors of electronic components, different dimmers may control different adjustable color temperature LED light sources separately, resulting in color temperature deviations when different adjustable color temperature LED light sources are at the same color temperature level.

[0003] In view of the above problems, it is necessary to study a multifunctional LED dimmer with color temperature fine-tuning function, which can adjust different adjustable color temperature LED light sources to the same color temperature. Utility Model Content

[0004] The purpose of this invention is to provide a multifunctional LED dimmer with a color temperature fine-tuning function, which enables different adjustable color temperature LED light sources to be adjusted to the same color temperature.

[0005] To achieve the above objectives, the solution of this utility model is:

[0006] A multifunctional LED dimmer includes a dimming circuit board, a color temperature switching switch, a color temperature fine-tuning potentiometer, and multiple color temperature setting units disposed on the dimming circuit board. The dimming circuit board has a first connection terminal and a second connection terminal. The color temperature switching switch has multiple switching positions. The input terminal of each switching position of the color temperature switching switch is connected to the first connection terminal. The output terminal of each switching position of the color temperature switching switch is connected to the input terminal of each color temperature setting unit. The output terminal of each color temperature setting unit is connected to the movable contact of the color temperature fine-tuning potentiometer. A fixed contact of the color temperature fine-tuning potentiometer is connected to the second connection terminal. The resistance values ​​of each color temperature setting unit are different.

[0007] The color temperature switch has six switching positions.

[0008] The color temperature setting unit includes a first color temperature resistor and a second color temperature resistor connected in parallel.

[0009] The multi-functional LED dimmer also includes a brightness adjustment potentiometer disposed on the dimming circuit board; the dimming circuit board is also provided with a third connection terminal, the movable contact of the brightness adjustment potentiometer is connected to the third connection terminal, and a fixed contact of the brightness adjustment potentiometer is connected to the second connection terminal.

[0010] The first connection terminal, the second connection terminal, and the third connection terminal of the dimming circuit board are arranged side by side.

[0011] By adopting the above solution, this utility model can fine-tune the color temperature of adjustable color temperature LED light sources through a color temperature fine-tuning potentiometer, thereby enabling different adjustable color temperature LED light sources to be adjusted to the same color temperature. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the multifunctional LED dimmer of this utility model.

[0013] Figure 2 This is a schematic diagram illustrating the working principle of the multifunctional LED dimmer of this utility model.

[0014] Label Explanation:

[0015] Multifunctional LED dimmer A

[0016] Dimming circuit board 1, first connection terminal 11, second connection terminal 12, third connection terminal 13.

[0017] Brightness adjustment potentiometer 2

[0018] Color temperature switch 3

[0019] Color temperature fine-tuning potentiometer 4

[0020] Color temperature setting unit 5, first color temperature resistor 51, second color temperature resistor 52.

[0021] RX drive B,

[0022] Adjustable color temperature LED light source C. Detailed Implementation

[0023] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0024] like Figure 1 and Figure 2As shown, this utility model discloses a multifunctional LED dimmer A, which includes a dimming circuit board 1, and a brightness adjustment potentiometer 2, a color temperature switching switch 3, a color temperature fine-tuning potentiometer 4, and multiple color temperature setting units 5 disposed on the dimming circuit board 1; wherein, the dimming circuit board 1 is provided with a first connection terminal 11, a second connection terminal 12, and a third connection terminal 13; the color temperature switching switch 3 has multiple switching positions (one switching position is one switch), the input terminal of each switching position of the color temperature switching switch 3 is connected to the first connection terminal 11, the output terminal of each switching position of the color temperature switching switch 3 is respectively connected to the input terminal of each color temperature setting unit 5, the output terminal of each color temperature setting unit 5 is connected to the movable contact of the color temperature fine-tuning potentiometer 4, one fixed contact of the color temperature fine-tuning potentiometer 4 is connected to the second connection terminal 12, and the resistance values ​​of each color temperature setting unit 5 are different; the movable contact of the brightness adjustment potentiometer 2 is connected to the third connection terminal 13, and one fixed contact of the brightness adjustment potentiometer 2 is connected to the second connection terminal 12.

[0025] Cooperate Figure 2 As shown, in use, the multifunctional LED dimmer A of this invention connects the first connection terminal 11, the second connection terminal 12, and the third connection terminal 13 of the dimming circuit board 1 to the CCT+, DIM- / CCT-, and DIM+ pins of the RX driver B, respectively. The LED+, C-, and W- pins of the RX driver B are connected to the adjustable color temperature LED light source C. The L and N pins of the RX driver B are connected to AC power. The user can select the corresponding switching position by operating the color temperature switching switch 3, thereby controlling the different color temperature setting units 5 connected to the RX driver B, and thus controlling the voltage of the CCT+ pin of the RX driver B, causing the RX driver B to switch the color temperature of the adjustable color temperature LED light source C accordingly, thus achieving color temperature switching. Furthermore, the user can linearly adjust the resistance of the part of the color temperature fine-tuning potentiometer 4 connected to the circuit by rotating the color temperature fine-tuning potentiometer 4, thereby adjusting the voltage of the CCT+ pin of the RX driver B, causing the RX driver B to linearly adjust the color temperature of the adjustable color temperature LED light source C accordingly, thus achieving color temperature fine-tuning. In addition, the user can linearly adjust the resistance of the part of the brightness adjustment potentiometer 2 connected to the circuit by rotating the brightness adjustment potentiometer 2, thereby adjusting the voltage of the DIM+ pin of the RX driver B, so that the RX driver B linearly adjusts the brightness of the adjustable color temperature LED light source C, thereby realizing brightness adjustment.

[0026] In an embodiment of this utility model, the color temperature switching switch 3 may have six switching positions, and the color temperature setting unit 5 is also provided with six corresponding positions; the color temperature setting unit 5 may include a first color temperature resistor 51 and a second color temperature resistor 52 connected in parallel, which can improve the power and efficiency of the circuit, and improve the stability, reliability and accuracy of the circuit.

[0027] In an embodiment of this utility model, the first connection terminal 11, the second connection terminal 12, and the third connection terminal 13 of the dimming circuit board 1 are arranged side by side so that the dimming circuit board 1 can be connected to the RX driver B.

[0028] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A multifunctional LED dimmer, characterized in that: It includes a dimming circuit board, as well as a color temperature switching switch, a color temperature fine-tuning potentiometer, and multiple color temperature setting units disposed on the dimming circuit board; The dimming circuit board has a first connection terminal and a second connection terminal; The color temperature switch has multiple switching positions. The input terminal of each switching position of the color temperature switch is connected to the first connection terminal. The output terminal of each switching position of the color temperature switch is connected to the input terminal of each color temperature setting unit. The output terminal of each color temperature setting unit is connected to the movable contact of the color temperature fine-tuning potentiometer. One fixed contact of the color temperature fine-tuning potentiometer is connected to the second connection terminal. The resistance value of each color temperature setting unit is different.

2. The multifunctional LED dimmer as described in claim 1, characterized in that: The color temperature switch has six switching positions.

3. The multifunctional LED dimmer as described in claim 1, characterized in that: The color temperature setting unit includes a first color temperature resistor and a second color temperature resistor connected in parallel.

4. The multifunctional LED dimmer as described in claim 1, characterized in that: It also includes a brightness adjustment potentiometer disposed on the dimming circuit board; the dimming circuit board is also provided with a third connection terminal, the movable contact of the brightness adjustment potentiometer is connected to the third connection terminal, and a fixed contact of the brightness adjustment potentiometer is connected to the second connection terminal.

5. The multifunctional LED dimmer as described in claim 4, characterized in that: The first connection terminal, the second connection terminal, and the third connection terminal of the dimming circuit board are arranged side by side.

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