Integrated multi-function dimming controller

Abstract

This utility model relates to wireless IoT industry applications and smart building fields, and discloses an integrated multi-channel dimming controller with multiple functions. It includes a controller housing and a circuit board, with the circuit board mounted on the bottom shell of the housing. The top shell of the housing is connected to the bottom shell via a bayonet. The circuit board includes an LED indicator unit, a dimming control unit, a dry contact control unit, a self-organizing wireless module, an MCU main control chip, a 485 control unit, a button control unit, a power supply unit, and a relay control unit. The MCU main control chip is connected to the self-organizing wireless module and the 485 control unit via UART. By integrating multiple dimming modes into one device, user operation is simplified, costs are reduced, and users can easily control light, preset multiple lighting configurations, achieve intelligent lighting management, improve user experience, and open up new paths for the development of intelligent lighting control systems.

Description

Technical Field

[0001] This utility model relates to wireless Internet of Things industry applications and smart building fields, specifically to an integrated multi-channel dimming controller with multiple functions. Background Technology

[0002] With the rapid development of smart homes and smart buildings, the intelligence level of lighting control systems is increasing day by day. Traditional lighting control methods mostly rely on manual switches or basic timer control, which is difficult to meet users' growing personalized needs for lighting environments. To address this issue, intelligent dimming control has become an important direction in the lighting field. It can automatically adjust the brightness of lights according to environmental changes and user needs, creating a more comfortable and efficient lighting environment, thereby improving the user experience.

[0003] Compared to traditional lighting control solutions, dimming control solutions offer greater flexibility and adaptability, enabling a variety of functions such as area lighting, ambiance enhancement, and energy-saving optimization. However, existing dimming control systems generally lack sufficient functionality and integration, often requiring multiple separate devices to achieve their purpose. This increases system complexity and cost, especially given the growing prevalence of IoT technology and smart control concepts, making it difficult to ensure rich device functionality while reducing overall user costs. Utility Model Content

[0004] The purpose of this utility model is to provide an integrated multi-channel dimming controller with multiple functions to solve the following technical problems: dimming control schemes offer a better experience than traditional lighting control schemes, but are also more expensive, making it difficult to reduce the overall cost to users while ensuring rich device functions.

[0005] The objective of this utility model can be achieved through the following technical solution: an integrated multi-channel dimming controller with multiple functions, including a controller housing and a circuit function board. The circuit function board is mounted on the bottom shell of the housing, and the top shell of the housing is connected to the bottom shell by a bayonet. The circuit function board includes an LED indicator unit, a dimming control unit, a dry contact control unit, a self-organizing wireless module, an MCU main control chip, a 485 control unit, a button control unit, a power supply unit, and a relay control unit.

[0006] The MCU main control chip is connected to the self-organizing network wireless module and the 485 control unit via UART, the MCU main control chip is connected to the dimming control unit via PWM, the MCU main control chip is connected to the relay control unit via GPIO, and the self-organizing network wireless module is connected to the LED indicator unit, the dry contact control unit and the button control unit via GPIO.

[0007] The LED indicator unit, dimming control unit, dry contact control unit, self-organizing wireless module, MCU main control chip, 485 control unit, button control unit and relay control unit are all powered by the power supply unit.

[0008] As a preferred embodiment of this utility model, the LED indicator unit is used to indicate the power status and the status of the controlled device.

[0009] As a preferred embodiment of this utility model: the dimming control unit includes 8 independent output circuits, each of which drives a power MOSFET through a push-pull circuit chip.

[0010] As a preferred embodiment of this utility model, the dry contact control unit includes 6 independent inputs and 4 independent outputs.

[0011] As a preferred embodiment of this utility model: the self-organizing wireless module has a three-sided half-hole design and is connected to the circuit board by surface mount soldering.

[0012] As a preferred embodiment of this utility model: the self-organizing wireless module communicates with the MCU main control chip via UART to realize wireless signal transmission to drive PWM dimming, relay control unit and 485 control unit.

[0013] As a preferred embodiment of this utility model, the button control unit and the LED indicator unit are used to control and indicate the operating status of the device.

[0014] As a preferred embodiment of this utility model: the power supply unit includes a conversion circuit, a linear regulator and a low dropout regulator. The power supply unit supports an external 24V input and has a maximum output of 12V / 3A. The 24V input is converted to 12V through the conversion circuit, to 5V through the linear regulator, and to 3.3V through the low dropout regulator.

[0015] The power supply unit's input terminal is connected to an external power supply terminal, its 12V output terminal is connected to the dry contact control unit and the relay control unit, its 5V output terminal is connected to the dimming control unit, and its 3.3V output terminal is connected to the MCU main control chip, the self-organizing wireless module, the 485 control unit, the button control unit, and the LED indicator control unit.

[0016] As a preferred embodiment of this utility model, the relay control unit includes 5 independent dry contact outputs.

[0017] The beneficial effects of this utility model are:

[0018] This utility model controller integrates multiple dimming modes into a single device, greatly simplifying the user operation process and reducing the overall system cost. Users can easily achieve flexible light control and preset various lighting configurations according to different scenario requirements, thus realizing intelligent lighting management. The innovative design of this controller not only improves the user experience but also provides a new technological path for the development of future intelligent lighting control systems. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a framework diagram of the present utility model;

[0021] Figure 2 This is a schematic diagram of the controller housing in this utility model;

[0022] Figure 3 This is a schematic diagram of the LED indicator unit in this utility model;

[0023] Figure 4 This is a schematic diagram of the dimming control unit in this utility model;

[0024] Figure 5 This is a schematic diagram of the integrated circuit U1 in this utility model;

[0025] Figure 6 This is a schematic diagram of the integrated circuit U4 in this utility model;

[0026] Figure 7 This is a schematic diagram of the self-organizing wireless module in this utility model;

[0027] Figure 8 This is a schematic diagram of the MCU main control chip in this utility model;

[0028] Figure 9 This is a schematic diagram of the 485 control unit in this utility model;

[0029] Figure 10 This is a schematic diagram of the button control unit in this utility model;

[0030] Figure 11 This is a schematic diagram of the conversion circuit in this utility model;

[0031] Figure 12 This is a schematic diagram of the linear voltage regulator in this utility model;

[0032] Figure 13 This is a schematic diagram of the low differential voltage regulator of this utility model;

[0033] Figure 14 This is a schematic diagram of the relay control unit in this utility model. Detailed Implementation

[0034] 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.

[0035] Please see Figure 1 and Figure 2 As shown, this utility model is an integrated multi-channel dimming controller with multiple functions, including a controller housing and a circuit function board. The circuit function board is installed on the bottom shell of the housing, and the top shell of the housing is connected to the bottom shell by a bayonet. The circuit function board includes an LED indicator unit, a dimming control unit, a dry contact control unit, a self-organizing wireless module, an MCU main control chip, a 485 control unit, a button control unit, a power supply unit, and a relay control unit.

[0036] The controller housing is black and has a track-type design. The circuit board is fixed to the bottom housing with four screws, and the top housing is connected to the bottom housing via a snap-fit ​​mechanism, forming a complete functional device.

[0037] The MCU main control chip is connected to the self-organizing wireless module and the 485 control unit via UART, the MCU main control chip is connected to the dimming control unit via PWM, the MCU main control chip is connected to the relay control unit via GPIO, and the self-organizing wireless module is connected to the LED indicator unit, the dry contact control unit and the button control unit via GPIO.

[0038] The LED indicator unit, dimming control unit, dry contact control unit, self-organizing wireless module, MCU main control chip, 485 control unit, button control unit and relay control unit are all powered by the power supply unit.

[0039] Please see Figure 3 As shown, the LED indicator unit is used to indicate the power status and the status of the controlled device. The LED indicator unit includes a green light-emitting diode LED1, a red light-emitting diode LED2, a resistor R7, and a resistor R8.

[0040] One end of the green LED1 is connected to the power supply, and the other end of the green LED1 is connected to one end of the resistor R7. The other end of the resistor R7 is connected to ground.

[0041] One end of the red LED2 is connected to the power supply, and the other end of the red LED2 is connected to one end of the resistor R8, with the other end of the resistor R8 grounded.

[0042] The LED indicator control unit includes a power indicator and a status indicator. A red indicator in a 0603 package has its positive terminal connected to 3.3V, and its negative terminal connected in series with a 560R 0603 package resistor to GND; a green indicator in a 0603 package has its positive terminal connected to 3.3V, and its negative terminal connected in series with a 560R 0603 package resistor, and then connected to the PD2 port of the self-organizing wireless module.

[0043] Please see Figure 4 As shown, the dimming control unit contains 8 independent output circuits, each of which drives a power MOSFET through a push-pull circuit chip to achieve dimming. The dimming control unit includes controller Q5, capacitor C18, resistor R10, resistor R18 and transistor Q9.

[0044] The power supply pin of controller Q5 is connected to one end of PWMO, the input pin of controller Q5 is connected to one end of capacitor C18, the other end of capacitor C18 is grounded, the intersection of the input pin of controller Q5 and capacitor C18 is connected to the power supply, and the ground pin of controller Q5 is connected to ground.

[0045] The output pin of controller Q5 is connected to one end of resistor R10, the other end of resistor R10 is connected to one end of resistor R18, the other end of resistor R18 is connected to the source of transistor Q10, the intersection of resistor R10 and resistor R18 is connected to the drain of transistor Q9, and the intersection of the source of Q9 and resistor R18 is connected to ground.

[0046] The dimming control unit contains 8 independent output circuits, each driven by a SOT23-5 packaged push-pull circuit chip N531, specifically a TO-252-2 packaged NMOS 60V / 80A. 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 1-8 are connected to the PA13, PA12, PA10, PA11, PB4, PB7, PB14, and PA9 ports of the MCU chip, respectively; pin 3 is connected in series with a 0805 packaged 4.7R resistor and then to the gate of the NMOS; the source is connected to GND, and a 0805 packaged 10K resistor is connected in parallel between the gate and source; the drain output is connected to an external terminal block.

[0047] Please see Figure 5 and Figure 6As shown, the dry contact control unit includes 6 independent inputs and 4 independent outputs, and includes integrated circuit U1 and integrated circuit U4;

[0048] Integrated circuit U1 includes multiple input pins for receiving input signals. The output pin of integrated circuit U1 is connected to ground. The output pin of integrated circuit U4 is connected to the input pin of integrated circuit U1. The power supply pin of integrated circuit U4 is connected to the power supply. The ground pin of integrated circuit U4 is connected to ground.

[0049] The dry contact control unit includes 6 independent inputs and 4 independent outputs. The dry contact input section uses a ULN2003A in an SOP16 package, with pins 1-6 connected to external terminals as 6 external inputs; pins 7, 9, and 10 are left floating; pin 8 is connected to GND; pins 11-16 are connected to the PA1, PD7, PD4, PD3, PC6, and PA0 ports of the self-organizing wireless module, respectively. The dry contact output section uses a ULN2003A in an SOP16 package as the current sink input, with pins 1-4 connected to the PB4, PC1, PC0, and PC4 ports of the self-organizing wireless module, respectively; 5 Pins 6, 7, 10, 11, and 12 are left floating; pin 8 is connected to GND; pin 9 is connected to 12V; pins 13-16 are connected to external terminals as 4-channel dry contact outputs, or a TBD62783AFG in SOP18 package can be used as a current-source input, where pins 1-4 are connected to the PB4, PC1, PC0, and PC4 ports of the self-organizing wireless module, respectively; pins 5, 6, 7, 8, 11, 12, 13, and 14 are left floating; pin 9 is connected to 12V; pin 10 is connected to GND; pins 15-18 are connected to external terminals as 4-channel dry contact outputs.

[0050] Please see Figure 7 As shown, the self-organizing wireless module has a three-sided half-hole design and is connected to the circuit board by surface mount soldering. The power supply terminal of the self-organizing wireless module is connected to capacitors C10 and C12.

[0051] The power supply pin of microcontroller U7 is connected to one end of capacitor C12, and the other end of capacitor C12 is connected to the ground pin of microcontroller U7. The intersection of the power supply pin of microcontroller U7 and capacitor C12 is connected to one end of capacitor C10. The intersection of the ground pin of microcontroller U7 and capacitor C12 is connected to one end of capacitor C10. The intersection of the power supply pin of microcontroller U7 and capacitor C10 is connected to the power supply. The intersection of the ground pin of microcontroller U7 and capacitor C10 is connected to ground.

[0052] 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 around the TLSR8359F52 SoC processor chip, which hides the communication chip, external components, and 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 wireless module, which can be compatible with other types of wireless modules with the same form factor, realizing the functional design of flexible replacement of wireless modules.

[0053] The MT31 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.

[0054] Please see Figure 8 As shown, the self-organizing wireless module communicates with the MCU main control chip via UART to realize wireless signal transmission to drive PWM dimming, relay control unit and 485 control unit. The MCU main control chip includes relay U8, crystal oscillator Q19, capacitor C26, capacitor C27 and capacitor C29.

[0055] The receiving pin of relay U8 is connected to one end of capacitor C26, and the other end of capacitor C26 is grounded. The transmitting pin of relay U8 is connected to the output pin of crystal oscillator Q19. The control pin of relay U8 is connected to one end of crystal oscillator Q19. Crystal oscillator Q19 includes two ground pins, and the ground pin of crystal oscillator Q19 is connected to ground.

[0056] The input pin of relay U8 is connected to one end of capacitor C27, and the other end of capacitor C27 is connected to ground. The receiving pin of relay U8 is connected to one end of capacitor C29, and the other end of capacitor C29 is connected to ground. The intersection of the receiving pin of relay U8 and capacitor C29 is connected to the power supply. The grounding pin of relay U8 is connected to ground.

[0057] The MCU uses the Qinheng CH592F as the main controller, mainly implementing PWM dimming, relay control, 485 communication, and communication with the self-organizing wireless module. Pin 5 is connected to 3.3V, and a 1uF / 10V capacitor in a 0603 package is connected to GND. Pins 3, 4, and 22 are shorted, and a 100nF / 50V capacitor in a 0603 package is connected to GND. Pins 12, 13, and 17 are brought out and, together with 5V and GND, form a 5P programming hole with a 2mm pitch. Pins 18 and 19 are connected to a 32MHz crystal oscillator in an SMD 3225 package. Pin 20 is connected to a 1uF / 10V capacitor in a 0603 package to GND. Pin 22 is connected to a 100nF / 50V capacitor in a 0603 package to GND.

[0058] Please see Figure 9 As shown, the 485 control unit enables the device to work in different networks through protocol interfacing. The 485 control unit includes converter U2, resistor R1, capacitor C2, resistor R2, resistor R3, resistor R4 and suppressor TV1.

[0059] The receive pin of converter U2 is connected to one end of resistor R1, the other end of resistor R1 is connected to ground, and the intersection of the receive pin of converter U2 and resistor R1 is connected to the drive pin of converter U2.

[0060] The power supply pin of converter U2 is connected to one end of capacitor C2, the other end of capacitor C2 is grounded, the intersection of the power supply pin of converter U2 and capacitor C2 is connected to the power supply, and the ground pin of converter U2 is connected to ground.

[0061] The negative output pin of converter U2 is connected to one end of resistor R2, and the other end of resistor R2 is grounded. The positive output pin of converter U2 is connected to one end of resistor R4, and the other end of resistor R4 is connected to the power supply. The intersection of the negative output pin of converter U2 and resistor R2 is connected to one end of resistor R3, and the other end of resistor R3 is connected to the intersection of the positive output pin of converter U2 and resistor R4.

[0062] The junction of resistors R2 and R3 is connected to the negative pin of suppressor TV1, the junction of resistors R3 and R4 is connected to the positive pin of suppressor TV1, and the ground pin of suppressor TV1 is connected to ground.

[0063] The 485 control unit contains an SP3485 chip in an SOP8 package. Pin 1 is connected to the PA4 port of the MCU chip; pins 2 and 3 are shorted and connected to the PA8 port of the MCU chip, along with a 10K pull-down resistor in a 0603 package; pin 4 is connected to the PA5 port of the MCU chip; pin 5 is connected to GND; pin 8 is connected to 3.3V and is filtered by a 100nF / 50V capacitor in a 0603 package; pin 6 is connected to a 10K pull-up resistor in a 0603 package, then to pin 2 of a TVS PESD12VL2BT in an SOT23-3 package, and then to an external terminal block; pin 7 is connected to a 10K pull-down resistor in a 0603 package, then to pin 1 of a TVS PESD12VL2BT in an SOT23-3 package, and then to an external terminal block; a 120R resistor in a 0603 package is connected in parallel between pins 6 and 7. Connect pin 3 of TVS PESD12VL2BT to GND.

[0064] Please see Figure 10 As shown, the button control unit and LED indicator unit are used to control and indicate the operating status of the equipment. The button control unit includes button P2 and fuse resistor FR1.

[0065] One end of the fuse resistor FR1 is connected to the positive terminal of the power supply, and the other end of the fuse resistor FR1 is connected to one end of the button P2. The button P2 also includes multiple transmission pins.

[0066] The button control unit includes a plug-in packaged button. Pin 1 of the button is connected to the PA7 port of the self-organizing wireless module, and is also connected to a 10K fuse resistor in a 0603 package and a 100nF / 50V filter capacitor in a 0603 package. Pins 2, 3, and 4 of the button are connected to GND.

[0067] Please see Figures 11-13 As shown, the power supply unit includes a conversion circuit, a linear regulator, and a low-dropout regulator. The power supply unit supports an external 24V input and has a maximum output of 12V / 3A. The 24V input is converted to 12V through the conversion circuit, to 5V through the linear regulator, and to 3.3V through the low-dropout regulator.

[0068] The power supply unit's input terminal is connected to an external power supply terminal, its 12V output terminal is connected to the dry contact control unit and relay control unit, its 5V output terminal is connected to the dimming control unit, and its 3.3V output terminal is connected to the MCU main control chip, self-organizing wireless module, 485 control unit, button control unit, and LED indicator control unit.

[0069] The conversion circuit includes electrolytic capacitor EC3, resistors R26, R27, R28, and R29, transistors Q17 and Q18, diodes D1 and D2, electrolytic capacitor EC3, capacitor C1, controller U3, capacitor C3, inductor L1, resistors R5 and R6, capacitors C4 and C5.

[0070] One end of electrolytic capacitor EC3 is grounded, and the other end of electrolytic capacitor EC3 is connected to one end of resistor R26. The other end of electrolytic resistor R26 is connected to one end of resistor R27 and the anode of diode D1. The other end of resistor R27 is connected to the drain of transistor Q17 and transistor Q18. The cathode of diode D1 is grounded.

[0071] The junction of electrolytic capacitor EC3 and resistor R26 is connected to the positive power supply and one end of resistor R28, respectively. The other end of resistor R28 is connected to one end of resistor R29, and the other end of resistor R29 is grounded. The gates of transistors Q17 and Q18 are both connected to the negative power supply. The source of transistor Q17 is connected to the junction of resistors R26 and R27, and the source of transistor Q18 is connected to the junction of resistors R28 and R29.

[0072] The anode of electrolytic capacitor EC1 is connected to the positive terminal of the power supply, the cathode of electrolytic capacitor EC1 is connected to the negative terminal of the power supply, one end of capacitor C1 is connected to the positive terminal of the power supply, and the other end is connected to the negative terminal of the power supply.

[0073] The input pin and enable pin of controller U3 are both connected to the positive terminal of the power supply, the ground pin of controller U3 is connected to the negative terminal of the power supply, the switch pin of controller U3 is connected to one end of inductor L1, the other end of inductor L1 is connected to one end of resistor R5, the other end of resistor R5 is connected to one end of resistor R6, and the other end of resistor R6 is connected to the negative terminal of the power supply.

[0074] The intersection of the switch pin of controller U3 and inductor L1 is connected to one end of capacitor C3. The other end of capacitor C3 is connected to the boost pin of controller U3. The intersection of resistor R5 and resistor R6 is connected to the feedback pin of controller U3 and one end of capacitor C4, respectively. The other end of capacitor C4 is connected to one end of capacitor C5. The other end of capacitor C5 is connected to the negative terminal of the power supply and grounded.

[0075] The linear regulator includes regulator VR1, capacitor C7, capacitor C9, capacitor 11, and capacitor EC2;

[0076] The input pin of voltage regulator VR1 is connected to one end of capacitor C7 and capacitor EC2, and the other end of capacitor C7 and capacitor EC2 is grounded. The output pin of voltage regulator VR1 is connected to one end of capacitor C9 and capacitor C11, and the other end of capacitor C9 and capacitor C11 is connected to ground. The ground pin of voltage regulator VR1 is connected to ground.

[0077] The low dropout voltage regulator includes regulator VR2, capacitor C13, capacitor C14, capacitor C16, and capacitor C17;

[0078] The input pin of voltage regulator VR2 is connected to one end of capacitors C13 and C14, and the other end of capacitors C13 and C14 is connected to ground. The output pin of voltage regulator VR2 is connected to one end of capacitors C16 and C17, and the other end of capacitors C16 and C17 is connected to ground. The ground pin of voltage regulator VR2 is connected to ground.

[0079] The power supply unit includes a 24V to 12V DC-DC converter, a 12V to 5V LDO, and a 5V to 3.3V LDO. The DC-DC chip is an RY9430 in an ESOP-8 package. The external 24V positive input is filtered by a 1000uF / 35V electrolytic capacitor (12.5 * 20mm), then by a 100uF / 50V electrolytic capacitor (8 * 12mm), and finally by a 100nF / 50V capacitor (0805) before being connected to pin 2 of the DC-DC chip. The 24V negative input is connected in series with two TO-252-2 packaged NMOS transistors. The 60V / 80A design incorporates reverse polarity protection. Specifically, the negative terminal of the 24V input is connected to the drain of the NMOS transistor; the source of the NMOS transistor is connected to GND; two 10K resistors in 0805 packages are connected in series, with one end connected to the positive terminal of the 24V input and the other end connected to GND. After dividing the voltage at the midpoint to obtain 12V, the midpoint is connected to the gate of the NMOS transistor. At the same time, a Zener diode in an SOD-123FL package, MMSZ12VCW, is connected in parallel between the gate and GND; the other NMOS transistor is connected in the same way. Pins 7 and 2 of the DC-DC chip are shorted together; pins 4 and 9 are connected to GND; pin 6 is left floating; a 100nF / 50V 0805-package capacitor is connected in parallel between pins 1 and 3; a 6.8uH / 3A 8*10mm inductor is connected in series with pin 3, and after filtering by a 47uF / 25V 1206-package capacitor, a 12V output is generated; the 12V output is connected to a 120K 0805-package resistor, and then to pin 5 of the DC-DC chip. Pin 5 is also connected to a 10K 0805-package pull-down resistor, forming a feedback loop. The 12V output then passes through an 8*10mm inductor... A 100uF / 50V electrolytic capacitor in a 12mm package filters the voltage, followed by another 100nF / 50V capacitor in a 0603 package. This filtered voltage is then connected to the Vin pin of a TO-252-2 packaged 78M05 capacitor. The GND pin of the 78M05 is connected to GND. The Vout pin output is filtered by a 10uF / 16V capacitor in a 0603 package, then by another 100nF / 50V capacitor in a 0603 package, resulting in a 5V output. The 5V output is then filtered by yet another 100nF / 50V capacitor in a 0603 package. After being filtered by a 10uF / 16V capacitor in a 0603 package, it is 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 / 16V capacitor in a 0603 package, and then by a 100nF / 50V capacitor in a 0603 package, resulting in an output of 3.3V. The positive terminals of the 24V input are connected in series with two plug-in fuses STS2300 to the common terminals 1 and 2 of the external wiring terminals.

[0080] Please see Figure 14As shown, the relay control unit contains 5 independent dry contact outputs. The relay control unit includes relay KA1. The high-voltage contact control terminal of relay KA1 is connected to an external terminal block, and the low-voltage coil control terminal is connected to a power supply.

[0081] The relay control unit contains 5 independent dry contact outputs. Here, a 12V / 10A relay in a 10.2 * 18.4mm package and an SOP16 packaged ULN2003A are selected for driving. The high-voltage contact control terminal of the relay is connected to an external terminal block; the low-voltage coil control terminal is connected to 12V, and the other end is connected to pins 12-16 of the ULN2003A respectively; pins 1-5 of the ULN2003A are connected to the PB10, PB11, PB12, PB13, and PB15 ports of the MCU chip respectively; pins 6, 7, 10, and 11 are left floating; pin 8 is connected to GND; and pin 9 is connected to 12V.

[0082] The working principle of this utility model is as follows: The self-organizing wireless module and the MCU are connected via a serial port; the dimming control unit is connected to 8 independent GPIO ports of the MCU; the dry contact control unit is connected to 10 independent GPIO ports of the self-organizing wireless module; the 485 control unit is connected to 3 independent GPIO ports of the MCU; the relay control unit is connected to 5 independent GPIO ports of the MCU; the button control unit is connected to 1 independent GPIO port of the self-organizing wireless module; the LED indicator control unit is connected to 1 independent GPIO port of the self-organizing wireless module; the power supply unit input is connected to an external power supply terminal, the 12V output is connected to the dry contact control unit and the relay control unit, the 5V output is connected to the dimming control unit, and the 3.3V output is connected to the MCU main control chip, the self-organizing wireless module, the 485 control unit, the button control unit, and the LED indicator control unit;

[0083] The circuit board is secured to the housing with four screws. The self-organizing wireless module features a three-sided half-hole design and is connected to the circuit board via surface mount soldering. The area of ​​the circuit board below the wireless module antenna is a blank rectangular area. The dimming control unit contains eight independent output circuits, each driven by a push-pull circuit chip to achieve dimming. The dry contact control unit contains six independent inputs and four independent outputs, with the outputs selectable for sinking or sourcing current via surface mount technology. The RS-485 control unit includes an RS-485 chip, allowing the device to operate on different networks through protocol interfacing. The relay control unit contains five independent dry contact outputs. The button control unit and LED indicator control unit indicate the device's operating status. The power supply unit supports an external 24V input with a maximum output of 12V / 3A. The 24V input is converted to 12V via a DC-DC chip, further converted to 5V via an LDO, and then further converted to 3.3V via an LDO to power the other modules.

[0084] 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. Integrated multi-channel dimmer controller with multiple functions, comprising a controller housing and a circuit function board, said circuit function board is mounted on the bottom shell of said housing, the top shell of said housing is connected with the bottom shell by the way of bayonet, characterized in that, The circuit board includes an LED indicator unit, a dimming control unit, a dry contact control unit, a self-organizing wireless module, an MCU main control chip, a 485 control unit, a button control unit, a power supply unit, and a relay control unit. The MCU main control chip is connected to the self-organizing network wireless module and the 485 control unit via UART, the MCU main control chip is connected to the dimming control unit via PWM, the MCU main control chip is connected to the relay control unit via GPIO, and the self-organizing network wireless module is connected to the LED indicator unit, the dry contact control unit and the button control unit via GPIO. The LED indicator unit, dimming control unit, dry contact control unit, self-organizing wireless module, MCU main control chip, 485 control unit, button control unit and relay control unit are all powered by the power supply unit.

2. The integrated multi-functional multi-channel dimmer controller of claim 1, wherein, The LED indicator unit is used to indicate the power status and the status of the controlled device.

3. The integrated multi-functional multi-channel dimmer controller of claim 1, wherein, The dimming control unit contains 8 independent output circuits, each of which drives a power MOSFET through a push-pull circuit chip.

4. The integrated multi-functional multi-channel dimmer controller of claim 1, wherein, The dry contact control unit includes 6 independent inputs and 4 independent outputs.

5. The integrated multi-functional multi-channel dimmer controller of claim 1, wherein, The self-organizing wireless module has a three-sided half-hole design and is connected to the circuit board by surface mount soldering.

6. The integrated multi-functional multi-channel dimmer controller of claim 1, wherein, The self-organizing wireless module communicates with the MCU main control chip via UART to realize wireless signal transmission to drive PWM dimming, relay control unit and 485 control unit.

7. The integrated multi-functional multi-channel dimmer controller of claim 1, wherein, The button control unit and LED indicator unit are used to control and indicate the operating status of the device.

8. The integrated multi-functional multi-channel dimmer controller of claim 1, wherein, The power supply unit includes a conversion circuit, a linear regulator, and a low-dropout regulator. The power supply unit supports an external 24V input and has a maximum output of 12V / 3A. The 24V input is converted to 12V by the conversion circuit, to 5V by the linear regulator, and to 3.3V by the low-dropout regulator. The power supply unit's input terminal is connected to an external power supply terminal, its 12V output terminal is connected to the dry contact control unit and the relay control unit, its 5V output terminal is connected to the dimming control unit, and its 3.3V output terminal is connected to the MCU main control chip, the self-organizing wireless module, the 485 control unit, the button control unit, and the LED indicator control unit.

9. The integrated multi-functional multi-channel dimmer controller of claim 1, wherein, The relay control unit contains 5 independent dry contact outputs.

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