RGB LED lightening control device based on single power supply and digital potentiometer

Abstract

The utility model discloses an RGB LED lightening control device based on a single power supply and digital potentiometers. The RGB LED lightening control device comprises a power supply module, three parallel circuit modules, corresponding digital potentiometers, a switch, a signal controller and a current module. The power supply module provides stable electric energy for the whole system; and each parallel circuit module comprises a digital potentiometer, a switch, a signal controller and a current module and is used for independently controlling the current of one path of RGB LED. The utility model aims to realize independent and mixed control of three-color light of the RGB LED lamp bead through a single power supply and a parallel circuit structure in combination with a fine adjustment function of the digital potentiometer, and has the advantages of low cost, strong portability, simplicity and convenience in manufacturing and use and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of LED lighting control, and specifically relates to a device for realizing independent control and mixed adjustment of three-color light of RGB LED beads through a single power supply combined with a digital potentiometer. Background Art

[0002] In the prior art, LED lighting devices mostly adopt the principle of voltage regulation or current regulation, but most of them can only realize the control of a single light source or a fixed color, and cannot realize the flexible adjustment of multi-color light such as RGB. In addition, traditional solutions often require multiple power supplies to separately control LEDs of different colors, which not only increases the cost, but also reduces the portability and usability of the system. Summary of the Utility Model

[0003] In view of the above problems, the utility model proposes an RGB LED lighting control device based on a single power supply and a digital potentiometer, aiming to realize the independent and mixed control of three-color light of RGB LED beads through a single power supply and a parallel circuit structure, combined with the fine adjustment function of the digital potentiometer, which has the advantages of low cost, strong portability, simple production and use.

[0004] The technical solution of the utility model is as follows:

[0005] An RGB LED lighting control device based on a single power supply and a digital potentiometer includes a power supply module, three parallel circuit modules and corresponding digital potentiometers, switches, signal controllers and current modules. The power supply module provides stable electric energy for the whole system; each parallel circuit module includes a digital potentiometer (such as mcp4017t-502e / lt of Microchip company), a switch, a signal controller (such as PZ254V-11-03P of XFCN company) and a current module (such as YB4835VA digital ammeter of Feinade company), which are used to independently control the current of one path of RGB LED.

[0006] Working Principle:

[0007] Power Distribution: The electric energy output by the power supply module is evenly distributed to the three parallel circuit modules.

[0008] Digital Potentiometer Control: The B pin of each digital potentiometer is connected to the circuit, one end of the W pin is grounded, and the other end is connected to the circuit through an internal resistor. The SCL and SDA pins receive instructions from the signal controller to adjust the internal resistance value, thereby changing the current magnitude of the parallel circuit where it is located.

[0009] Signal Control: The signal controller sends control signals to each digital potentiometer through SDA and SCL according to external input or a preset program, precisely adjusts the RGB three-way current, and realizes independent or mixed color adjustment.

[0010] Current monitoring: The current module monitors and displays the current values of each parallel circuit in real time to ensure the stable operation of the system.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1. Cost saving: Only one power supply is required to achieve full-color control of RGB LEDs, significantly reducing the hardware cost.

[0013] 2. Lightweight and convenient: The system has a simple structure, small volume, is easy to carry and install, and is suitable for a variety of application scenarios.

[0014] 3. Simple production: Common electronic components are used, reducing the design and production difficulty.

[0015] 4. Simple use: Users can control all color changes through a single interface or program, with convenient operation. Description of the drawings

[0016] Figure 1 is the structural module diagram of the present utility model;

[0017] Figure 2 is the circuit diagram of the circuit module of the present utility model;

[0018] Figure 3 is the circuit diagram of the power supply module;

[0019] Figure 4 is the schematic diagram of the digital potentiometer control. Detailed implementation manners

[0020] The present utility model will be further described below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model and cannot be used to limit the protection scope of the present utility model.

[0021] Embodiment:

[0022] As Figures 1-4 shown, a control device for lighting RGB LEDs based on a single power supply and a digital potentiometer includes:

[0023] a) A power supply module for providing stable electric energy for the entire system and evenly distributing the electric energy into at least three parallel circuit modules;

[0024] b) At least three parallel circuit modules, each circuit module including:

[0025] i. A digital potentiometer, whose B pin is connected to the circuit, one end of the W pin is grounded, and the other end is connected to the circuit through an internal resistor. The SCL and SDA pins are used to receive control signals to adjust the internal resistor value, thereby changing the current magnitude of the circuit where it is located;

[0026] ii. A switch for controlling the on / off of the corresponding circuit;

[0027] iii. A signal controller for sending control signals to each digital potentiometer via SDA and SCL according to an external input or a preset program to achieve precise adjustment of the RGB three-way current;

[0028] iv. A current module for real-time monitoring and displaying the current values of each parallel circuit.

[0029] Preferably, the above digital potentiometer is of the mcp4017t-502e / lt type from Microchip.

[0030] Preferably, the above signal controller is of the PZ254V-11-03P type from XFCN.

[0031] Preferably, the above current module is the YB4835VA digital ammeter from Feinade.

[0032] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An RGB LED lighting control device based on a single power supply and a digital potentiometer, characterized in that including: a) A power supply module for providing stable electrical energy for the entire system and evenly distributing the electrical energy into at least three parallel circuit modules; b) At least three parallel circuit modules, each circuit module including: i. A digital potentiometer, whose B pin is connected to the circuit, one end of the W pin is grounded, and the other end is connected to the circuit through an internal resistor. The SCL and SDA pins are used to receive control signals to adjust the internal resistance value, thereby changing the current magnitude of the circuit where it is located; ii. A switch for controlling the on / off of the corresponding circuit; iii. A signal controller for sending control signals to each digital potentiometer through SDA and SCL according to external input or a preset program to achieve precise adjustment of the RGB three-way current; iv. A current module for real-time monitoring and displaying the current values of each parallel circuit.

2. The RGB LED lighting control device based on a single power supply and a digital potentiometer according to claim 1, wherein The digital potentiometer selects the mcp4017t-502e / lt type of Microchip Company.

3. A control device for lighting an RGB LED based on a single power supply and a digital potentiometer according to claim 1, characterized in that, The signal controller selects the PZ254V-11-03P type of XFCN Company.

4. A control device for lighting an RGB LED based on a single power supply and a digital potentiometer according to claim 1, characterized in that, The current module selects the YB4835VA type digital ammeter of Feinaide Company.

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