Illumination control system

Abstract

The lighting control system comprises a power supply module, a step-down circuit module, an MCU control circuit module, a switch circuit module and a lighting load module, the step-down circuit module, the switch circuit module and the lighting load module are respectively connected with the MCU control circuit module, and the power supply module is connected with the step-down circuit module and the lighting load module. After the switching circuit module is switched on and switched off, the MCU control circuit module limits the current of the switched-on switching circuit module so as to control the lighting load module to be switched on or switched off; according to the utility model, the MCU control circuit module is connected with the switch circuit module and the lighting load module, even if a plurality of switches of the switch circuit module are turned on and turned on at the same time, the MCU control circuit module can automatically control the output signals of the switches, thereby controlling the number of turned-on lighting loads in the lighting load module. The current stability of the whole lighting control system is ensured, overlarge current is avoided, the service life of the lighting load is prolonged, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting, and particularly relates to a lighting control system. Background Art

[0002] LEDs have the characteristics of energy saving, environmental protection, long service life, small size, etc., and are widely used in the lighting field. Such as indoor lighting, landscape lighting, etc. In actual applications, generally, multiple LED lighting loads are centrally controlled. After multiple LED lighting loads are turned on simultaneously, the current in the power supply circuit is too large, which will cause serious damage to the LED lighting loads, shorten the service life, and pose a safety hazard. Therefore, how to achieve lighting control, prevent excessive current, and improve the service life of LED lighting loads is a technical problem that needs to be solved currently. Summary of the Utility Model

[0003] The main purpose of the utility model is to overcome the above-mentioned shortcomings and deficiencies of the prior art, and provide a lighting control system.

[0004] A lighting control system includes a power supply module, a buck circuit module, an MCU control circuit module, a switch circuit module, and a lighting load module. The buck circuit module, the switch circuit module, and the lighting load module are respectively connected to the MCU control circuit module. The power supply module is connected to the buck circuit module and the lighting load module. After the switch circuit module is turned on and connected, the MCU control circuit module limits the current of the turned-on switch circuit module, and then controls the turning on or off of the lighting load module.

[0005] In one embodiment, the buck circuit module includes a diode D1, a diode TVS1, a resistor R1, a chip U1, a capacitor C1, a capacitor C2, and a capacitor C3. One end of the diode D1 and the diode TVS1 is connected to the power supply module. The other end of the diode D1 is connected to the resistor R1. The other end of the resistor R1 is connected to the first pin of the chip U1 and the capacitor C1. The third pin of the chip U1 is connected to the capacitor C2, the capacitor C3, and the MCU control circuit module. The diode TVS1, the capacitor C1, the capacitor C2, the capacitor C3, and the second pin of the chip U1 are all grounded.

[0006] In one embodiment, the MCU control circuit module includes a resistor R2, a resistor R9, a capacitor C4, a capacitor C5, and a chip U2. One end of the resistor R9 is connected to the third pin of the chip U1. The other end of the resistor R9 is connected to the capacitor C4, the capacitor C5, the resistor R2, and the first pin of the chip U2. The other end of the resistor R2 is connected to the fourth pin of the chip U2. The capacitor C4, the capacitor C5, and the eighth pin of the chip U2 are all grounded.

[0007] In the implementation of one of the embodiments, the switch circuit module includes switch S1, switch S2, switch S3, resistor R6, resistor R7, and resistor R8. Switch S1 is connected to resistor R6, switch S2 is connected to resistor R7, and switch S3 is connected to resistor R8. The other end of resistor R6 is connected to the 5th pin of U2, the other end of resistor R7 is connected to the 4th pin of U2, and the other end of resistor R8 is connected to the 2nd pin of U2. Switches S1, S2, and S3 are all grounded.

[0008] In the implementation of one of the embodiments, the lighting load module includes three lighting loads, and the 2nd, 6th, and 7th pins of chip U2 are respectively connected to the three lighting loads.

[0009] In the implementation of one of the embodiments, the lighting load includes resistor R3, triode Q1, relay switch K1, and diode D1. Resistor R3 is connected to the 6th pin of chip U2. One end of triode Q1 is connected to the other end of resistor R3, and the other two ends of triode Q1 are respectively connected to relay switch K1 and diode D1. Relay switch K1 and diode D1 are connected to the power supply module.

[0010] The lighting control system of the present utility model has the following beneficial effects: By setting the MCU control circuit module to be connected to the switch circuit module and the lighting load module, even if multiple switches of the switch circuit module are turned on and conducted simultaneously, the MCU control circuit module can automatically control its output signal, thereby controlling the number of lighting loads turned on in the lighting load module, ensuring the current stability of the entire lighting control system, avoiding excessive current, increasing the service life of the lighting load, and reducing potential safety hazards. Description of the Drawings

[0011] Figure 1 is a schematic diagram of the principle of the lighting control system of the present utility model;

[0012] Figure 2 is the circuit diagram of the buck circuit module in the lighting control system of the present utility model;

[0013] Figure 3 is the circuit diagram of the MCU control circuit module in the lighting control system of the present utility model;

[0014] Figure 4 is the circuit diagram of the switch circuit module in the lighting control system of the present utility model;

[0015] Figure 5 is the circuit diagram of the first lighting load in the lighting control system of the present utility model;

[0016] Figure 6This is the circuit diagram of lighting load two in the lighting control system of the present utility model;

[0017] Figure 7 This is the circuit diagram of lighting load three in the lighting control system of the present utility model. Specific embodiments

[0018] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0019] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0020] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0021] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0023] The present utility model provides an illumination control system, which includes a power supply module, a step-down circuit module, an MCU control circuit module, a switching circuit module and an illumination load module. The step-down circuit module, the switching circuit module and the illumination load module are respectively connected to the MCU control circuit module. The power supply module is connected to the step-down circuit module and the illumination load module. After the switching circuit module is turned on and connected, the MCU control circuit module limits the current of the turned-on switching circuit module, and further controls the turning on or off of the illumination load module.

[0024] By arranging the MCU control circuit module to be connected to the switching circuit module and the illumination load module, even if multiple switches of the switching circuit module are turned on and conducted simultaneously, the MCU control circuit module can automatically control its output signal, and further control the number of turned-on illuminations in the illumination load module, ensuring the current stability of the entire illumination control system, avoiding excessive current, increasing the service life of the illumination load, and reducing potential safety hazards.

[0025] Embodiment

[0026] Please refer to Figure 1 , the present utility model provides an illumination control system, which includes a power supply module 1, a step-down circuit module 2, an MCU control circuit module 3, a switching circuit module 4 and an illumination load module 5. The step-down circuit module 2, the switching circuit module 4 and the illumination load module 5 are respectively connected to the MCU control circuit module 3. The power supply module 1 is connected to the step-down circuit module 2 and the illumination load module 5. The power supply module 1 converts the commercial power of 220V into 24V, and supplies power to the step-down circuit module 2 and the illumination load module 5. The step-down circuit module 2 reduces the voltage provided by the power supply module 1 from 24V to 5V, and supplies power to the MCU control circuit module 3. After the switching circuit module 4 is turned on and connected, the MCU control circuit module 3 limits the current of the turned-on switching circuit module 4, and further controls the turning on or off of the illumination load module 5.

[0027] The lighting control system of the present utility model is connected to a switch circuit module 4 and a lighting load module 5 by setting an MCU control circuit module 3. Even if multiple switches of the switch circuit module 4 are turned on and conducted simultaneously, the MCU control circuit module 3 can automatically control its output signal, thereby controlling the number of lighting loads turned on in the lighting load module 5, ensuring the current stability of the entire lighting control system, avoiding excessive current, increasing the service life of the lighting load, and reducing potential safety hazards.

[0028] More specifically, please refer to Figure 2 , the buck circuit module 2 includes a diode D1, a diode TVS1, a resistor R1, a chip U1, a capacitor C1, a capacitor C2, and a capacitor C3. One end of the diode D1 and the diode TVS1 is connected to the power supply module 1, the other end of the diode D1 is connected to the resistor R1, the other end of the resistor R1 is connected to the first pin of the chip U1 and the capacitor C1, the third pin of the chip U1 is connected to the capacitor C2, the capacitor C3, and the MCU control circuit module 3, and the diode TVS1, the capacitor C1, the capacitor C2, the capacitor C3, and the second pin of the chip U1 are all grounded.

[0029] More specifically, please refer to Figure 3 , the MCU control circuit module 3 includes a resistor R2, a resistor R9, a capacitor C4, a capacitor C5, and a chip U2. One end of the resistor R9 is connected to the third pin of the chip U1, the other end of the resistor R9 is connected to the capacitor C4, the capacitor C5, the resistor R2, and the first pin of the chip U2, the other end of the resistor R2 is connected to the fourth pin of the chip U2, and the capacitor C4, the capacitor C5, and the eighth pin of the chip U2 are all grounded.

[0030] More specifically, please refer to Figure 3 and Figure 4 , the switch circuit module includes a switch S1, a switch S2, a switch S3, a resistor R6, a resistor R7, and a resistor R8. The switch S1 is connected to the resistor R6, the switch S2 is connected to the resistor R7, the switch S3 is connected to the resistor R8, the other end of the resistor R6 is connected to the fifth pin of the U2, the other end of the resistor R7 is connected to the fourth pin of the U2, the other end of the resistor R8 is connected to the second pin of the U2, and the switch S1, the switch S2, and the switch S3 are all grounded.

[0031] More specifically, please refer to Figure 1 , Figure 3 , Figure 5 , Figure 6 and Figure 7 , the lighting load module 5 includes three lighting loads 51, and the second pin, the sixth pin, and the seventh pin of the chip U2 are respectively connected to the three lighting loads 51.

[0032] More specifically, please refer to Figure 3 and Figure 5, the first lighting load 51 includes a resistor R3, a triode Q1, a relay switch K1, and a diode D2. The resistor R3 is connected to the 6th pin of the chip U2. One end of the triode Q1 is connected to the other end of the resistor R3, and the other two ends of the triode Q1 are respectively connected to the relay switch K1 and the diode D2. The relay switch K1 and the diode D2 are connected to the power supply module 1.

[0033] More specifically, please refer to Figure 3 and Figure 6 , the second lighting load 51 includes a resistor R4, a triode Q2, a relay switch K2, and a diode D3. The resistor R4 is connected to the 7th pin of the chip U2. One end of the triode Q2 is connected to the other end of the resistor R4, and the other two ends of the triode Q2 are respectively connected to the relay switch K2 and the diode D3. The relay switch K2 and the diode D3 are connected to the power supply module 1.

[0034] More specifically, please refer to Figure 3 and Figure 7 , the third lighting load 51 includes a resistor R5, a triode Q3, a relay switch K3, and a diode D4. The resistor R5 is connected to the 2nd pin of the chip U2. One end of the triode Q3 is connected to the other end of the resistor R5, and the other two ends of the triode Q3 are respectively connected to the relay switch K3 and the diode D4. The relay switch K3 and the diode D4 are connected to the power supply module 1.

[0035] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as within the scope described in this specification.

[0036] The above-described embodiments only represent several implementation manners of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A lighting control system, characterized in that: It includes a power supply module, a step-down circuit module, an MCU control circuit module, a switch circuit module and a lighting load module. The step-down circuit module, the switch circuit module and the lighting load module are respectively connected to the MCU control circuit module. The power supply module is connected to the step-down circuit module and the lighting load module. After the switch circuit module is turned on and connected, the MCU control circuit module limits the current of the turned-on switch circuit module, thereby controlling the turning on or off of the lighting load module.

2. The lighting control system according to claim 1, characterized in that: The step-down circuit module includes a diode D1, a diode TVS1, a resistor R1, a chip U1, a capacitor C1, a capacitor C2 and a capacitor C3. One end of the diode D1 and the diode TVS1 is connected to the power module, the other end of the diode D1 is connected to the resistor R1, the other end of the resistor R1 is connected to the first pin of the chip U1 and the capacitor C1, the third pin of the chip U1 is connected to the capacitor C2, the capacitor C3 and the MCU control circuit module, and the second pin of the diode TVS1, the capacitor C1, the capacitor C2, the capacitor C3 and the chip U1 are all grounded.

3. The lighting control system according to claim 2, characterized in that: The MCU control circuit module includes a resistor R2, a resistor R9, a capacitor C4, a capacitor C5 and a chip U2, one end of the resistor R9 is connected to the third pin of the chip U1, the other end of the resistor R9 is connected to the capacitor C4, the capacitor C5, the resistor R2 and the first pin of the chip U2, the other end of the resistor R2 is connected to the fourth pin of the chip U2, and the capacitor C4, the capacitor C5 and the eighth pin of the chip U2 are all grounded.

4. The lighting control system according to claim 3, characterized in that: The switch circuit module includes a switch S1, a switch S2, a switch S3, a resistor R6, a resistor R7 and a resistor R8. The switch S1 is connected to the resistor R6, the switch S2 is connected to the resistor R7, the switch S3 is connected to the resistor R8, the other end of the resistor R6 is connected to the 5th pin of U2, the other end of the resistor R7 is connected to the 4th pin of U2, the other end of the resistor R8 is connected to the 2nd pin of U2, and the switch S1, the switch S2 and the switch S3 are all grounded.

5. The lighting control system according to claim 3, characterized in that: The lighting load module includes three lighting loads, and the second pin, the sixth pin, and the seventh pin of the chip U2 are respectively connected to the three lighting loads.

6. The lighting control system according to claim 5, characterized in that: The lighting load includes a resistor R3, a transistor Q1, a relay switch K1 and a diode D1, the resistor R3 is connected to the 6th pin of the chip U2, one end of the transistor Q1 is connected to the other end of the resistor R3, and the other two ends of the transistor Q1 are respectively connected to the relay switch K1 and the diode D1, and the relay switch K1 and the diode D1 are connected to the power module.

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