Movable lighting control circuit

Abstract

The utility model relates to a movable illumination control circuit. The utility model comprises a power supply unit, a touch control unit, a main control unit, an LED driving unit and an LED unit. Wherein the main control unit is respectively connected with the touch control unit and the LED driving unit, the LED driving unit is connected with the LED unit, and the power supply unit is respectively connected with the touch control unit and the main control unit; the power supply unit is used for supplying power to the touch control unit, the main control unit, the LED driving unit and the LED unit; the touch control unit is used for collecting a touch signal and transmitting the collected touch signal to the main control unit; the main control unit is used for generating an LED control signal according to the touch signal and outputting the LED control signal to the LED driving unit; and the LED driving unit is used for driving the LED unit according to the received LED control signal so as to realize the change of light. According to the utility model, the problems of complex circuit and high maintenance cost of a movable lighting circuit are solved, physical keys can be eliminated, the circuit can be simplified, the maintenance cost can be reduced, and a more energy-saving scheme is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent lighting control, in particular to a movable lighting control circuit. Background Art

[0002] In the current field of movable circuit lighting control, physical buttons or knobs are usually used to control the change of lights. However, this method results in a relatively complex circuit structure, inconvenient for maintenance, and poor stability of the circuit structure. Summary of the Invention

[0003] Therefore, the utility model provides a movable lighting control circuit, which solves the problems of complex movable lighting circuit and high maintenance cost. It can not only eliminate physical buttons to simplify the circuit, but also reduce the maintenance cost and provide a more energy-saving solution.

[0004] To solve the above technical problems, the utility model provides a movable lighting control circuit, including a power supply unit, a touch control unit, a main control unit, an LED driving unit, and an LED unit;

[0005] Wherein, the main control unit is respectively connected to the touch control unit and the LED driving unit, the LED driving unit is connected to the LED unit, and the power supply unit is respectively connected to the touch control unit and the main control unit;

[0006] The power supply unit is used to supply power to the touch control unit, the main control unit, the LED driving unit, and the LED unit;

[0007] The touch control unit is used to collect touch signals and transmit the collected touch signals to the main control unit;

[0008] The main control unit is used to generate an LED control signal according to the touch signal and output the LED control signal to the LED driving unit;

[0009] The LED driving unit is used to drive the LED unit according to the received LED control signal to realize the change of lights.

[0010] In an embodiment of the utility model, the power supply unit includes a connected BUCK bucking unit and an LDO voltage stabilizing unit. The BUCK bucking unit is used to convert the 24V power supply voltage into 10V voltage, and the LDO voltage stabilizing unit is used to convert the 10V voltage provided by the BUCK bucking unit into 5V voltage to supply power to the main control unit.

[0011] In an embodiment of the present utility model, the BUCK bucking unit includes a DCDC bucking chip U3, and the model of the DCDC bucking chip U3 is RY8401.

[0012] In an embodiment of the present utility model, the LDO voltage regulation unit includes an LDO voltage conversion chip U1, and the model of the LDO voltage conversion chip U1 is AMS1117-5.0.

[0013] In an embodiment of the present utility model, the touch control unit includes a touch chip U5, and the model of the touch chip U5 is XW05A.

[0014] In an embodiment of the present utility model, the main control unit includes an MCU.

[0015] In an embodiment of the present utility model, the LED driving unit includes LED driving chips U4 and U6, and the models of both the LED driving chip U4 and the LED driving chip U6 are Hi7001.

[0016] In an embodiment of the present utility model, the LED unit includes two groups of LED lamp beads. One group of the LED lamp beads uses 6000K lamp beads, and the other group of the LED lamp beads uses 2700K lamp beads.

[0017] The above technical solution of the present utility model has the following advantages compared with the prior art:

[0018] The movable lighting control circuit described in the present utility model can realize the control of the LED light change through manual touch sensing of a person, reducing the complexity of human operation. When someone touches the induction switch of the lamp, the built-in function of the lamp itself can be triggered. After the built-in lighting effect demonstration is completed, it will automatically return to the constant-on state, increasing the interaction between people and the light and reducing the complexity of the circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the present utility model easier to be clearly understood, the following further describes the present utility model in detail according to the specific embodiments of the present utility model and in conjunction with the attached drawings.

[0020] Figure 1 It is a structural block diagram of the LED driving circuit of the movable lighting control circuit provided by the present utility model.

[0021] Figure 2 It is a circuit diagram of the BUCK bucking unit provided by the present utility model.

[0022] Figure 3 It is a circuit diagram of the LDO voltage regulation unit provided by the present utility model.

[0023] Figure 4 The drive circuit diagram provided for the present utility model.

[0024] Figure 5 The circuit diagram of the touch control unit provided for the present utility model.

[0025] Figure 6 The circuit diagram of the main control unit provided for the present utility model.

[0026] Figure 7 The circuit diagram of the LED drive unit (chip U4) provided for the present utility model.

[0027] Figure 8 The circuit diagram of the LED drive unit (chip U6) provided for the present utility model.

[0028] Figure 9 The circuit diagram of the LED unit provided for the present utility model. Detailed implementation manners

[0029] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the cited embodiments shall not be construed as a limitation to the present utility model.

[0030] In the present utility model, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present utility model, rather than indicating or implying that the technical features referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0031] In the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and understandings such as "greater than", "less than", "exceeding" do not include the present number; understandings such as "above", "below", "within" include the present number. In the description of the present utility model, if "first" and "second" are described, they are only for the purpose of distinguishing technical features and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0032] In the present utility model, unless otherwise clearly defined, words such as "arranged", "installed", "connected" should be understood in a broad sense. For example, they can be directly connected, or indirectly connected through an intermediate medium; they can be fixedly connected, or detachably connected, and can also be integrally formed; they can be mechanically connected, or electrically connected or capable of communicating with each other; they can be the communication inside two components or the interaction relationship between two components. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0033] Referring to Figure 1 shown, a movable lighting control circuit of the present utility model includes a power supply unit, a touch control unit, a main control unit, an LED driving unit, and an LED unit;

[0034] Wherein, the main control unit is respectively connected to the touch control unit and the LED driving unit, the LED driving unit is connected to the LED unit, and the power supply unit is respectively connected to the touch control unit and the main control unit;

[0035] The power supply unit is used to supply power to the touch control unit, the main control unit, the LED driving unit, and the LED unit;

[0036] The touch control unit is used to collect touch signals and transmit the collected touch signals to the main control unit;

[0037] The main control unit is used to generate an LED control signal according to the touch signal and output the LED control signal to the LED driving unit;

[0038] The LED driving unit is used to drive the LED unit according to the received LED control signal to realize the change of the light.

[0039] In one embodiment, referring to Figures 2 - 4 shown, the power supply unit includes a BUCK step-down unit and an LDO voltage stabilization unit. The BUCK step-down unit is used to convert the 24V power supply voltage into 10V voltage, and then the LDO voltage stabilization unit is used to convert the 10V voltage provided by the BUCK step-down unit into 5V voltage to supply power to the main control unit.

[0040] Specifically, referring to Figure 2 、 Figure 3 shown, the BUCK step-down unit includes a DCDC step-down chip U3, and the model of the DCDC step-down chip U1 is RY8401; the LDO voltage stabilization unit includes an LDO voltage conversion chip U1, and the model of the LDO voltage conversion chip U1 is AMS1117-5.

[0041] Referring to Figure 4 shown, the input voltage of this two-way LED driving circuit is DC24V. Diodes D1 and D2 are at the input end of the entire power supply unit, which can prevent the power supply from being reversed and burning out the entire control board, playing a protective role for the entire circuit. Capacitors E1 and C9 and the common mode suppressor L2 at the input end can filter out the ripple of the input voltage, making the entire power supply unit work more stably. Resistors R2 and R3 are used to adjust the output voltage of the BUCK step-down unit. High-precision resistors with 1% accuracy are selected, which can ensure that the output voltage is more stable. At the same time, referring toFigure 3 As shown in the figure, a filtering capacitor C7 is placed at the output end of the power supply unit, which also filters the output +5V voltage to remove the AC noise interference inside, making the subsequent units work more stably. The BUCK step-down unit selects the DCDC step-down chip U3 of Chengdu Ruiyuan. The input voltage range of this DCDC step-down chip U1 is 4 - 42V, with a wide working range and high conversion efficiency. The chip U1 has an internal MOS transistor, which simplifies the peripheral circuit and reduces costs at the same time. The power supply unit first converts DC24V to DC10V through the BUCK step-down unit, and then converts the output DC10V voltage to DC5V through the LDO voltage conversion chip U1 of Weimeng. A capacitor C7 (with a capacitance value of 4.7 μF) is placed at the output end of the LDO voltage stabilization unit to filter the AC ripple in the output voltage and supply power to the main control unit, making the main control unit work more stably.

[0042] In one embodiment, referring to Figure 5 As shown in the figure, the touch control unit includes a touch chip U10 and its peripheral circuit. The model of the touch chip U5 is XW05A. The fourth, fifth, sixth, seventh, and eighth pins of the touch chip U10 are connected to the TH pad. The touch chip U5 is used to capture the touch signal and output a low-level signal to the main control unit when a human touches the TH pad. After receiving the low-level signal, the main control unit will transmit the control instructions stored in the MCU to the LED driving unit through the PWM signal to achieve the effect of the combined bright and dark changes of the two-way LED lamp beads. At the same time, the touch sensitivity can be adjusted by adjusting the capacitance value of the capacitor in the peripheral circuit. Therefore, the touch control unit has strong versatility and can adjust the sensitivity according to the thickness of different installation enclosures.

[0043] In one embodiment, referring to Figure 6 As shown in the figure, the main control unit includes an MCU. The MCU used is HC32F005C6PA of Huada Semiconductor, which serves as the core processing unit of this system.

[0044] In one embodiment, referring to Figure 7 、 Figure 8 As shown in the figure, the LED driving unit includes LED driving chips U4 and U6. The models of both the LED driving chip U4 and the LED driving chip U6 are Hi7001.

[0045] The circuit is controlled by using high-performance constant-current drive chips, namely LED drive chip U4 and LED drive chip U6, in the LED drive unit. It supports a dimming ratio of up to 65536:1, thus achieving precise brightness adjustment. Meanwhile, the drive chip has high efficiency, with the highest efficiency reaching 95%, a constant-current accuracy of ≤±3%, supports soft start, supports PWM and analog dimming, an average current operating mode, supports over-temperature current reduction, and supports output short-circuit protection. The main function of this drive unit is to drive the LED light source. By processing the received PWM signal through the internal logic circuit of the chip, it realizes the on / off changes of the combination of two groups of LED lamp beads, and can achieve high-gray-scale refreshing. This driving method can achieve high-gray-scale refreshing, thereby improving the competitiveness of the product and the visual experience of users.

[0046] In one embodiment, as Figure 9 shown, the first group of the LED lamp beads uses 6000K LED lamp beads, and the second group of the LED lamp beads uses 2700K LED lamp beads.

[0047] In this embodiment, the LED unit mainly consists of LED lamp beads. The driving method of the LED drive unit for the LED lamp beads is constant-current drive, and the LED unit adopts a common-anode circuit design.

[0048] The LED drive circuit provided by the present utility model is compatible with touch sensing and DMX512 control. When someone touches the external touch unit, the touch unit will transmit the triggered low-level signal to the MCU, and the MCU will transmit the built-in control effect to the LED drive unit through the PWM signal, thereby driving the LED lamp beads to start realizing the built-in lighting effect.

[0049] The mobile lighting circuit control method and circuit provided by the present utility model change the traditional way of using physical buttons to control the mobile circuit, and can have multiple functions built in, improving the interaction between people and the lamps and the competitiveness of the product.

[0050] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present utility model and are not restrictive. Although the present utility model has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A portable lighting control circuit, characterized in that: It includes a power supply unit, a touch control unit, a main control unit, an LED driving unit and an LED unit; The main control unit is connected to the touch control unit and the LED driving unit respectively, the LED driving unit is connected to the LED unit, and the power supply unit is connected to the touch control unit and the main control unit respectively; The power supply unit is used to supply power to the touch control unit, the main control unit, the LED driving unit and the LED unit; The touch control unit is used to collect touch signals and transmit the collected touch signals to the main control unit; The main control unit is used to generate an LED control signal according to the touch signal, and output the LED control signal to the LED driving unit; The LED driving unit is used to drive the LED unit according to the received LED control signal to achieve the change of light; The LED unit includes two groups of LED lamp beads, one group of LED lamp beads uses 6000K lamp beads, and the other group of LED lamp beads uses 2700K lamp beads.

2. A portable lighting control circuit according to claim 1, characterized in that: The power supply unit includes a connected BUCK buck unit and an LDO voltage stabilizing unit, wherein the BUCK buck unit is used to convert a 24V power supply voltage into a 10V voltage, and the LDO voltage stabilizing unit is used to convert the 10V voltage provided by the BUCK buck unit into a 5V voltage to supply power to the main control unit.

3. A portable lighting control circuit according to claim 2, characterized in that: The BUCK step-down unit includes a DCDC step-down chip U3, and the model of the DCDC step-down chip U3 is RY8401.

4. A movable lighting control circuit according to claim 2, characterized in that: The LDO voltage stabilizing unit includes an LDO voltage conversion chip U1, and the model of the LDO voltage conversion chip U1 is AMS1117-5.

0.

5. The movable lighting control circuit according to claim 1, characterized in that: The touch control unit includes a touch chip U5, and the model of the touch chip U5 is XW05A.

6. The movable lighting control circuit according to claim 1, characterized in that: The main control unit includes an MCU.

7. The movable lighting control circuit according to claim 1, characterized in that: The LED driving unit includes an LED driving chip U4 and an LED driving chip U6. The models of the LED driving chip U4 and the LED driving chip U6 are both Hi7001.

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