CN108093529A - Intelligent constant-current supply and its control method applied to LED product - Google Patents

Abstract

The invention discloses an intelligent constant current power supply applied to LED products, comprising a Bluetooth module with its own networking function, an AC/DC main power supply circuit, and a Bluetooth power supply BUCK circuit, wherein the Bluetooth module is embedded with a The intelligent control port of the PWM output signal, the AC/DC main power supply circuit includes an LED constant current controller connected to the PWM output end of the Bluetooth module through the pin 1, connected to the pin 4 of the LED constant current controller The resistance branch on the upper part, the rectifier bridge BD1 connected in parallel with the resistance branch, the capacitor C1, and the inductance-capacitance series branch connected in parallel with the capacitor C1, the input end of the rectifier bridge is connected with a piezoresistor RV1; The Bluetooth power supply BUCK circuit is connected to both ends of the capacitor C1. The invention integrates the Bluetooth MESH technology with the LED power supply, so that the LED lamps at the output end of the same power supply can be flexibly adjusted and controlled according to the operator's wishes, so that it can be more energy-saving and environmentally friendly while realizing lighting. The effect of beautifying the environment.

Description

Intelligent constant current power supply applied to LED products and its control method

technical field

The invention relates to an LED power supply, in particular to an intelligent constant-current power supply applied to LED products and a control method thereof.

Background technique

With the rapid development of science and technology, LED products are constantly developing and replacing. People's initial requirement for LED products is to realize energy saving while realizing lighting. Now, with the increase and change of application scenarios of LED products, people's demand for LED products The requirements are no longer just for lighting and energy saving, but also for technical indicators such as brightness, color temperature, and color of LED products. However, after the existing LED lamps are installed in the same place, they usually can only display fixed brightness, color temperature and color, and can only be switched as a whole. Not only is it difficult to meet people's requirements for changes in brightness, color temperature and color of LED products, The long-term high brightness and high color temperature of LED lamps will cause damage to the life of the power supply and lamp beads, which is not conducive to the long-term stable use of LED products. Therefore, intelligent LED products with variable technical indicators such as brightness, color temperature, and color have become the goal pursued by people.

Contents of the invention

The purpose of the present invention is to provide an intelligent constant current power supply and its control method applied to LED products. By introducing a Bluetooth mesh module into the existing lighting power supply, the wireless remote intelligent control of LED lamps can be realized, thereby achieving the control of the lamps. The purpose of unified control or individual control makes the control of LED lamps more flexible, and the efficacy of LED lamps in energy saving, environmental protection, decoration and environmental beautification is more fully reflected.

To achieve the above object, the technical scheme adopted in the present invention is as follows:

An intelligent constant current power supply for LED products, including a Bluetooth module with its own networking function, an AC/DC main power supply circuit, and a Bluetooth power supply BUCK circuit, wherein the Bluetooth module is embedded with an intelligent control for adjusting the PWM output signal port, the AC/DC main power supply circuit includes an LED constant current controller connected to the PWM output end of the Bluetooth module through pin 1, and a resistor branch connected to pin 4 of the LED constant current controller, A rectifier bridge BD1, a capacitor C1 connected in parallel with the resistance branch, and an inductance-capacitance series branch connected in parallel with the capacitor C1, the input end of the rectifier bridge is connected with a piezoresistor RV1; the Bluetooth power supply BUCK circuit and the capacitor Both ends of C1 are connected.

Preferably, the Bluetooth power supply BUCK circuit includes a non-isolated step-down CN2800, the pin 4 of the CN2800 is connected to the negative pole of the capacitor C1 through a diode D2, the pin 5 is connected to the positive pole of the capacitor C1, and the pin 1 is connected to the positive pole of the capacitor C1. 4 are connected in series with a resistor R5, an inductor L2, and a resistor R8, the pin 3 is connected to the pin 2 through a capacitor C4, and a capacitor C5 is also connected between the diode D2 and the inductor L2; the power output terminal of the Bluetooth power supply BUCK circuit Connect with the power input terminal of the bluetooth module.

In particular, the bluetooth module is configured with at least one PWM output terminal, and each PWM output terminal adjusts a technical index of the LED lamp.

The control method of the intelligent constant current power supply applied to LED products provided by the present invention comprises the following steps:

(1) Turn on the power switch, and the Bluetooth power supply BUCK circuit will continue to supply power to the Bluetooth module;

(2) According to the needs of the scene, change the PWM output signal through the intelligent control port;

(3) The changed PWM output signal enters the LED constant current controller to change its output power;

(4) The LED lamps connected to the output terminal of the power supply change their brightness, color temperature or color under the influence of input power changes.

In particular, an intelligent constant current power supply is connected to at least one LED lamp, and simultaneously controls all LED lamps connected to the output end of the intelligent constant current power supply.

Compared with the prior art, the present invention has the following beneficial effects:

(1) The present invention combines the Bluetooth MESH technology with the LED power supply, and utilizes the characteristics of the Bluetooth module power-on ad hoc network, so that the LED lamps at the output end of the same power supply can be flexibly adjusted and controlled according to the operator's wishes, thereby greatly The functions of LED lamps are enriched, so that they can be more energy-saving and environmentally friendly while realizing lighting, reflecting the effect of decoration and beautifying the environment.

(2) The present invention can use the wireless network of the Bluetooth module to realize remote intelligent control of LED lamps. It only needs to connect smart devices such as mobile phones, computers, and IPADs to the wireless network port of the Bluetooth module to perform remote control, which is flexible and And convenient.

(3) The present invention is not only applicable to the control of lamps in various large-scale public places, but also suitable for the control of private lamps in small households, and the application range is very wide.

(4) The present invention can automatically form a network, and hand in hand, can control multiple intelligent constant current power supplies at the same time.

Description of drawings

Fig. 1 is a schematic circuit diagram of an AC/DC main power supply circuit in the present invention.

Fig. 2 is a schematic diagram of the Bluetooth power supply BUCK circuit in the present invention.

Fig. 3 is a schematic circuit diagram of the bluetooth module in the present invention.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and embodiments, and the mode of the present invention includes but not limited to the following embodiments.

Example

As shown in Figures 1 to 3, the intelligent constant current power supply for LED products disclosed by the present invention includes a Bluetooth module with its own networking function, an AC/DC main power supply circuit, and a Bluetooth power supply BUCK circuit, wherein the The Bluetooth module is embedded with an intelligent control port for adjusting the PWM output signal. The AC/DC main power supply circuit includes an LED constant current controller connected to the PWM output end of the Bluetooth module through pin 1. The resistance branch on the pin 4 of the current controller, the rectifier bridge BD1 and capacitor C1 connected in parallel with the resistance branch respectively, and the inductance-capacitance series branch connected in parallel with the capacitor C1, the input end of the rectifier bridge is connected with Varistor RV1; the Bluetooth power supply BUCK circuit is connected to both ends of the capacitor C1.

As shown in Figure 2, the Bluetooth power supply BUCK circuit includes a non-isolated step-down CN2800, the pin 4 of the CN2800 is connected to the negative pole of the capacitor C1 through a diode D2, its pin 5 is connected to the positive pole of the capacitor C1, and the pin 1 is connected to the positive pole of the capacitor C1. A resistor R5, an inductor L2, and a resistor R8 are connected in series with the pin 4, the pin 3 is connected to the pin 2 through a capacitor C4, and a capacitor C5 is also connected between the diode D2 and the inductor L2; the Bluetooth power supply BUCK circuit The power output end is connected with the power input end of the Bluetooth module.

In particular, the bluetooth module is configured with at least one PWM output terminal, and each PWM output terminal adjusts a technical index of the LED lamp.

The control method of the intelligent constant current power supply applied to LED products disclosed by the present invention comprises the following steps:

(1) Turn on the power switch, and the Bluetooth power supply BUCK circuit will continue to supply power to the Bluetooth module;

(2) According to the needs of the scene, change the PWM output signal through the intelligent control port;

(3) The changed PWM output signal enters the LED constant current controller to change its output power;

(4) The LED lamps connected to the output terminal of the power supply change their brightness, color temperature or color under the influence of input power changes.

In particular, an intelligent constant current power supply is connected to at least one LED lamp, and simultaneously controls all LED lamps connected to the output end of the intelligent constant current power supply.

In different application places, you can choose an intelligent constant current power supply to connect several LED lamps according to the size of the LED lamps. After loading the intelligent control program on the Bluetooth module in the power supply, an intelligent terminal can pass through the power supply. The bluetooth module inputs different PWM signals to different LED constant current controllers, and then realizes different controls on different LED lamps. After installation, only the switch can be controlled uniformly and the brightness, color temperature, and color of the LED lamp cannot be adjusted flexibly. This can greatly improve the efficacy of LED lamps other than lighting, thereby greatly improving the practical value of LED lamps, and has broad market prospects.

The above-mentioned embodiment is only one of the preferred implementation modes of the present invention, and should not be used to limit the scope of protection of the present invention, but any modification or embellishment without substantive significance made on the main design concept and spirit of the present invention shall be solved by it. If the technical problems are still consistent with the present invention, all should be included in the protection scope of the present invention.

Claims (5)

1. The intelligent constant-current power supply applied to LED products is characterized in that it includes a Bluetooth module with its own networking function, an AC/DC main power supply circuit, and a Bluetooth power supply BUCK circuit, wherein the Bluetooth module is embedded with a BUCK circuit for adjusting The intelligent control port of the PWM output signal, the AC/DC main power supply circuit includes an LED constant current controller connected to the PWM output end of the Bluetooth module through the pin 1, connected to the pin 4 of the LED constant current controller The resistance branch on the upper part, the rectifier bridge BD1 connected in parallel with the resistance branch, the capacitor C1, and the inductance-capacitance series branch connected in parallel with the capacitor C1, the input end of the rectifier bridge is connected with a piezoresistor RV1; The Bluetooth power supply BUCK circuit is connected to both ends of the capacitor C1. 2. The intelligent constant current power supply applied to LED products according to claim 1, characterized in that, the Bluetooth power supply BUCK circuit includes a non-isolated step-down CN2800, and the pin 4 of the CN2800 passes through a diode D2 and a capacitor C1 Connected to the negative pole of the capacitor C1, its pin 5 is connected to the positive pole of the capacitor C1, a resistor R5, an inductor L2, and a resistor R8 are connected in series between the pin 1 and the pin 4, the pin 3 is connected to the pin 2 through the capacitor C4, and the diode D2 A capacitor C5 is also connected between the inductance L2; the power output end of the Bluetooth power supply BUCK circuit is connected with the power input end of the Bluetooth module. 3. The intelligent constant-current power supply applied to LED products according to claim 1, wherein the Bluetooth module is equipped with at least one PWM output terminal, and each PWM output terminal adjusts a technical index of the LED lamp. 4. The control method of the intelligent constant current power supply applied to LED products, characterized in that it comprises the following steps: (1) Turn on the power switch, and the Bluetooth power supply BUCK circuit will continue to supply power to the Bluetooth module; (2) According to the needs of the scene, change the PWM output signal through the intelligent control port; (3) The changed PWM output signal enters the LED constant current controller to change its output power; (4) The LED lamps connected to the output terminal of the power supply change their brightness, color temperature or color under the influence of input power changes. 5. The control method of an intelligent constant current power supply applied to LED products according to claim 4, wherein an intelligent constant current power supply is connected to at least one LED lamp, and at the same time controls the output of the intelligent constant current power supply All LED fixtures at the end.