Five-way wireless dimmer controller for light strips

Abstract

The utility model relates to the technical field of intelligent building, specifically disclose five way light belt wireless dimming controller, including self -organizing network wireless module, dimming control unit, signal input control unit, button control unit and LED pilot lamp control unit and power unit, through the quick response of MOS in dimming control unit to PWM signal, can switch on and off state quickly, can high -efficient control current on -off simultaneously, improve the electric energy conversion efficiency, reduce the heat generation, the built -in wireless module can pass through and the two -way communication of surrounding product realizes intelligent control, effectively reduces the power consumption, improves the electric energy utilization rate, thereby reduces the cost, provides better intelligent application for the customer.

Description

Technical Field

[0001] This utility model relates to the field of intelligent building technology, specifically to a five-way wireless dimming controller for light strips. Background Technology

[0002] Intelligent dimming control is a technology that uses advanced electronic technology and control systems to automatically adjust the brightness of lighting equipment. Intelligent dimming control mainly uses sensors to sense ambient light, controllers to process signals and generate control commands according to preset rules, and finally actuators to adjust the brightness of lighting equipment to achieve automatic and precise dimming function.

[0003] In the existing technology, intelligent dimming control is an important direction and trend in the lighting field. Dimming control solutions offer a better experience compared to traditional lighting control solutions, but they are also more expensive. Wired dimming solutions are costly and require professional maintenance, while most wireless solutions do not offer single-channel or dual-channel dimming and lack multi-channel dimming solutions using wireless methods. Utility Model Content

[0004] The purpose of this utility model is to provide a five-channel wireless dimming controller for LED strip lights, solving the following technical problems: (1) How to make it easier for customers to implement intelligent applications at a lower cost.

[0005] The objective of this utility model can be achieved through the following technical solutions: The five-way LED strip wireless dimming controller includes a self-organizing wireless module, a dimming control unit, a signal input control unit, a button control unit, an LED indicator control unit, and a power supply unit; The power supply unit provides power to the self-organizing wireless module, the dimming control unit, the signal input control unit, the button control unit, and the LED indicator control unit; The self-organizing network wireless module is connected to the dimming control unit, the signal input control unit, the LED indicator control unit, and the button control unit, respectively.

[0006] Furthermore, the self-organizing wireless module includes a three-sided half-hole design and is connected to the circuit function board by surface mount soldering. The area of ​​the circuit function board below the antenna position of the wireless module is a blank rectangular area.

[0007] Furthermore, the dimming control unit includes five independent output circuits, each of which drives a power MOSFET through a push-pull circuit chip to achieve dimming.

[0008] Furthermore, the signal input control unit includes one input, which is active high.

[0009] Furthermore, the button control unit and the LED indicator control unit are used to indicate the operating status of the device.

[0010] Furthermore, the power supply unit supports external power input. The input is converted to 5V via a DC-DC chip, and further converted to 3.3V via an LDO to power other modules.

[0011] Furthermore, the circuit board is fixed inside the housing, which is divided into a bottom shell and a top shell, and is fixed by clips.

[0012] The beneficial effects of this utility model are: (1) This utility model can quickly switch between on and off states by rapidly responding to the PWM signal through the MOS switch in the dimming control unit, and can also efficiently control the current on and off, improve the power conversion efficiency and reduce heat generation; at the same time, the conversion efficiency can be increased to 70%-95% through the chip U2 in the power supply unit, effectively reducing power consumption and improving power utilization; the wireless control and multi-channel dimming array design significantly reduce costs and provide customers with better intelligent applications. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the frame of the five-way wireless dimming controller for LED strips in this utility model; Figure 2 This is a schematic diagram of the overall structure of the controller device in this utility model; Figure 3 This is a circuit diagram of the power supply unit and the signal input control unit in this utility model; Figure 4 This is the circuit diagram of the dimming control unit in this utility model; Figure 5 This is the circuit diagram of the LED indicator control unit in this utility model; Figure 6 This is the circuit diagram of the button control unit in this utility model; Figure 7 This is a circuit diagram of the self-organizing wireless module in this utility model; Figure 8 This is a circuit diagram of the output circuit in the dimming control unit of this utility model. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] Please refer to the attached diagram. Figures 1-8 As shown, the five-way LED strip wireless dimming controller in this embodiment of the present invention includes a self-organizing wireless module, a dimming control unit, a signal input control unit, a button control unit, an LED indicator control unit, and a power supply unit. The power supply unit provides power to the self-organizing wireless module, the dimming control unit, the signal input control unit, the button control unit, and the LED indicator control unit; The self-organizing network wireless module is connected to the dimming control unit, the signal input control unit, the LED indicator control unit, and the button control unit, respectively. In operation, this application uses a single circuit board. The dimming control unit is connected to five independent GPIO ports of the self-organizing wireless module; the signal input control unit is connected to one independent GPIO port of the self-organizing wireless module; the button control unit is connected to one independent GPIO port of the self-organizing wireless module; the LED indicator control unit is connected to one independent GPIO port of the self-organizing wireless module; the power supply unit's input terminal is connected to an external power supply terminal, its 5V output terminal is connected to the dimming control unit, and its 3.3V output terminal is connected to the self-organizing wireless module, the button control unit, and the LED indicator control unit. The signal input control unit is connected via a dry contact port. The self-organizing network intelligent wireless module, model MT31, is a 2.4GHz wireless sensor network communication module compliant with the IEEE 802.15.4 standard. It is designed with the TLSR8359F52SoC processor chip as its core. It hides the communication chip, external components, and other complex RF-related design processes such as high-frequency wiring, forming a stable communication module with high RF performance. It adopts a three-sided half-hole design layout, and the circuit function board has a surface-mount package for the self-organizing network wireless module, which can be compatible with other types of wireless modules with the same form factor package, realizing the functional design of flexible replacement of wireless modules. The self-organizing wireless module can be directly soldered onto the PCB board through a half-hole via. A 10uF / 16V 0603-packaged capacitor and a 100nF / 50V 0603-packaged capacitor are connected to the VCC pin for filtering. Five signal lines, namely VCC, GND, PD2, SWS, and RESET, are led out and connected to a 1.5mm*1.5mm circular pad with a 0.8mm via size. The programming interface is arranged with a 2mm spacing for easy software updates and iterations. The dimming control unit contains 5 independent output circuits. Each circuit is driven by a SOT23-5 packaged push-pull circuit chip N531, which drives a power MOSFET. Here, a TO-252-2 packaged NMOS 60V / 80A is selected. Pin 1 of the N531 is connected to a 5V power supply and a 0805 packaged 100nF / 16V capacitor for filtering. Pin 2 is left floating. Pin 4 is connected to GND. Pins 5 of circuits 1-5 are connected to the PC1, PC4, PD2, PB4, and PD3 ports of the self-organizing wireless module, respectively. Pin 3 is connected to the gate of the NMOS after being connected in series with a 0805 packaged 4.7R resistor. The source is connected to GND, and a 0805 packaged 10K resistor is connected in parallel between the gate and the source. The drain output is connected to an external terminal block. The signal input control unit connects to the external terminal for the input signal, then connects it in series with a 5.1K resistor in a 0603 package to the base of an 8050 transistor in an SOT-23-3 package; the emitter is connected to GND; a 30K resistor in a 0603 package is connected in parallel between the emitter and the base; the collector is connected to the PA1 port of the self-organizing wireless module, and a 10K pull-up resistor in a 0603 package is also connected. The button control unit includes an SMD packaged button. Pins 1 and 2 of the button are connected to the PD4 port of the self-organizing wireless module, and are also connected to a 10K pull-up resistor in a 0603 package and a 100nF / 50V filter capacitor in a 0603 package. Pins 3 and 4 of the button are connected to GND. The LED indicator control unit includes a status indicator light. The positive terminal of a red indicator light in a 0603 package is connected to 3.3V, and the negative terminal is connected in series with a 560R resistor in a 0603 package and then connected to the PC0 port of the self-organizing wireless module. The power supply unit includes a 24V to 5V DC-DC converter and a 5V to 3.3V LDO. The DC-DC chip is an ESOP-8 packaged XL7005A. The external 24V positive input is filtered by a 10*16mm packaged 330uF / 50V electrolytic capacitor, then filtered again by an 8*12mm packaged 47uF / 100V electrolytic capacitor before being connected to pin 1 of the DC-DC chip. The 24V input negative terminal is connected in series with a TO-252-2 packaged NMOS 60V / 80A for reverse polarity protection. The negative terminals are connected to the drain of the NMOS transistor; the source terminals of the NMOS transistor are connected to GND; two 10K resistors in 0805 packages are connected in series, one end to the 24V input positive terminal and the other end to GND. After dividing the voltage at the midpoint to obtain 12V, the midpoint is connected to the gate of the NMOS transistor. Simultaneously, an SOD-123FL packaged Zener diode MMSZ12VCW is connected in parallel between the gate and GND. Pins 5, 6, 7, and 8 of the DC-DC chip are connected to GND; pin 4 is left floating; pin 2 is connected in series with a 47uH SMD packaged inductor, which then flows through a 0805 packaged... The DC-DC converter outputs 5V after being filtered by a 22uF / 16V capacitor and then by a 220uF / 16V electrolytic capacitor in a 6.3*11mm package. A Schottky diode SK24 in an SOD-123FL package is connected in parallel with pin 2 and GND, with the diode's anode connected to GND and its cathode connected to pin 2 of the DC-DC chip. The 5V output is then connected to pin 3 of the DC-DC chip via a 10K resistor in a 0603 package. A 33nF / 50V capacitor in a 0603 package is connected in parallel with this resistor. Pin 3 is connected to a 3.3K capacitor in a 0603 package. The circuit is connected to GND to form a feedback loop. The 5V is filtered by a 10uF / 25V capacitor in a 0805 package and then connected to the Vin pin of an AMS1117-3.3 in an SOT-223-3 package. The GND pin of the AMS1117-3.3 is connected to GND. The Vout pin output is filtered by a 10uF / 25V capacitor in a 0805 package and then by a 100nF / 50V capacitor in a 0603 package to output 3.3V. The positive terminal of the 24V input is connected in series with an SMD packaged fuse STS2300 to the common terminal of the external wiring terminal. like Figure 7 As shown, the self-organizing wireless module includes a three-sided half-hole design and is connected to the circuit board by surface mount soldering. The area of ​​the circuit board below the antenna of the wireless module is a blank rectangular area. During operation, the self-organizing wireless module includes chip U1, capacitor C8, and chip P3. One end of capacitor C8 is grounded, and the other end is connected to the output terminal of the power supply unit and chip U1. Chip P3 and chip U1 are powered by the power supply unit. Chip U1 interacts with external circuits through its pins to realize the various functions of the self-organizing wireless module.

[0017] like Figure 4 As shown, the dimming control unit contains 5 independent output circuits, each of which drives a power MOSFET through a push-pull circuit chip to achieve dimming; During operation, the dimming control unit contains 5 independent output circuits. For one of the output circuits, output circuit one includes: chip Q1, capacitor C2, resistor R1, resistor R4, and NMOS transistor Q4. The power supply unit is grounded through capacitor C2, and the other end is connected to chip Q1 to supply power. One end of chip Q1 is grounded, and the other end is connected to resistor R1. Resistor R1 is connected to resistor R4. The other end of resistor R4 is grounded. The source of NMOS transistor Q4 is grounded, and the gate is connected to resistor R4. Each circuit drives the power MOS transistor through a push-pull circuit chip to achieve dimming.

[0018] like Figure 3 As shown, the signal input control unit contains one input, which is active high. During operation, the signal input control unit includes one input loop, consisting of resistors R19, R17, and R18, and transistor Q12. One end of resistor R19 is connected to the power supply unit, and the other end is connected to the collector of transistor Q12. One end of resistor R17 is connected to the base of transistor Q12, and the other end is connected to one end of resistor R18. The other end of resistor R18 is grounded. The emitter of transistor Q12 is grounded. By controlling the base current of the transistor, the INPUT signal output from the collector is affected, ultimately converting the induced signal into an electrical signal suitable for subsequent circuit processing.

[0019] like Figure 5 and Figure 6 As shown, the button control unit and the LED indicator control unit are used to indicate the operating status of the device; During operation, the button control unit and the LED indicator control unit are as follows: The button control unit includes a resistor R14, a button K1, and a capacitor C15; the LED indicator control unit includes a light-emitting diode D1 and a resistor R7. The power supply unit is connected to one end of the resistor R14; the other end of the resistor R14 is connected to the button K1; the other pin of the button K1 is grounded, and this pin is also connected to the capacitor C15; the other end of the capacitor C15 is connected to the node between the power supply unit and the resistor R14; the power supply unit is connected to the anode of the light-emitting diode D1; the cathode of the light-emitting diode D1 is connected to the resistor R7.

[0020] like Figure 3 As shown, the power supply unit supports external power input. The input is converted to 5V via a DC-DC chip, and further converted to 3.3V via an LDO to power other modules. During operation, the power supply unit includes a power input section and a secondary step-down section; the power input section includes power input interface P4, power input interface P5, capacitor EC1, capacitor EC2, capacitor C5, capacitor C13, capacitor EC4, resistor R15, resistor R16, resistor R12, resistor R13, NMOS transistor Q11, diode D2, diode VR2, chip U2, and inductor L1; The secondary step-down section includes voltage regulator chip VR3, capacitor C6, capacitor C7, and capacitor C16; Power input interface P4 is connected to one end of capacitor EC1; the other end of capacitor EC1 is grounded; one end of power input interface P5 is connected to resistor R17, and the other end is connected to power input interface P4; the drain of NMOS transistor Q11 is connected to power input interface P5, the source is grounded, and the gate is connected to resistor R16 and also through resistor R15; pin 1 of chip U2 is connected to one end of capacitor EC4; the other end of capacitor EC4 is grounded; pin 3 of chip U2 is connected to resistor R13 and also through resistor R12 to ground; diode VR2 is connected to inductor L1; one end of inductor L1 is connected to the power supply unit, and the other end is connected to pin 2 of chip U2; the power supply unit is connected to capacitor EC2, capacitor C5, and capacitor C13; The power supply unit is connected to pin 3 of the voltage regulator chip VR3; the output of the voltage regulator chip VR3 is grounded through capacitors C6, C7, and C16. During operation, the power supply unit supports external power input. The input is converted to 5V via a DC-DC chip, and further converted to 3.3V via an LDO to power other modules.

[0021] like Figure 2 As shown, the circuit board is fixed inside the housing, which consists of a bottom shell and a top shell, and is fixed by clips. When in operation, the white controller housing contains the circuit board, which is fixed inside the housing. The housing consists of a bottom shell and a top shell, which are secured by clips to form a complete functional device.

[0022] The working principle of this utility model is as follows: The dimming control unit contains 5 independent output circuits. Each circuit is driven by a SOT23-5 packaged push-pull circuit chip N531 to drive a power MOSFET. Here, a TO-252-2 packaged NMOS 60V / 80A is selected. Pin 1 of the N531 is connected to a 5V power supply and a 0805 packaged 100nF / 16V capacitor for filtering. Pin 2 is left floating. Pin 4 is connected to GND. Pins 5 of circuits 1-5 are connected to the PC1, PC4, PD2, PB4, and PD3 ports of the self-organizing wireless module, respectively. Pin 3 is connected to the gate of the NMOS after being connected in series with a 0805 packaged 4.7R resistor. The source is connected to GND, and a 0805 packaged 10K resistor is directly connected in parallel between the gate and the source. The drain output is connected to an external terminal block.

[0023] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.

Claims

1. A five-channel wireless dimming controller for LED strip lights, characterized in that, It includes a self-organizing wireless module, a dimming control unit, a signal input control unit, a button control unit, an LED indicator control unit, and a power supply unit; The power supply unit provides power to the self-organizing wireless module, the dimming control unit, the signal input control unit, the button control unit, and the LED indicator control unit; The self-organizing network wireless module is connected to the dimming control unit, the signal input control unit, the LED indicator control unit, and the button control unit, respectively. The self-organizing wireless module includes a three-sided half-hole design and is connected to the circuit board by surface mount soldering. The area of ​​the circuit board below the antenna of the wireless module is a blank rectangular area. The dimming control unit contains 5 independent output circuits, each of which drives a power MOSFET through a push-pull circuit chip to achieve dimming; The signal input control unit includes one input, which is active high. The button control unit and the LED indicator control unit are used to indicate the operating status of the device.

2. The five-channel LED strip wireless dimming controller according to claim 1, characterized in that, The power supply unit supports external power input. The input is converted to 5V through a DC-DC chip and further converted to 3.3V through an LDO to power other modules.

3. The five-channel LED strip wireless dimming controller according to claim 2, characterized in that, The circuit board is fixed inside the outer casing, which consists of a bottom casing and a top casing, and is secured by clips.

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