CN217936005U

CN217936005U - LED brightness adjustment controller

Info

Publication number: CN217936005U
Application number: CN202221471973.XU
Authority: CN
Inventors: 漆军; 黄坤
Original assignee: Sichuan Zhongke Zhigu Information Engineering Co ltd
Current assignee: Sichuan Zhongke Zhigu Information Engineering Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2022-11-29
Anticipated expiration: 2032-09-26

Abstract

The utility model relates to a LED adjustting of lighteness technical field, concretely relates to LED adjustting of lighteness controller, including power module, communication module, processing module and constant current output module, power module respectively with communication module, processing module and constant current output module electric connection, communication module and processing module electric connection, processing module and constant current output module; the controller CAN process serial port communication in the module to convert the serial port communication into CAN bus communication, and simultaneously supports 9-36V wide voltage power supply, so that the controller has a wider application range, is simpler in wiring, and is easier to control with other intelligent systems in a unified way; the signal is input into the constant current control module, the output is controlled by the constant current according to the ambient light, and the brightness of the LED is intelligently adjusted, so that the energy loss is reduced, and the LED intelligent constant current control system is in line with green life.

Description

LED brightness adjustment controller

Technical Field

The utility model relates to a LED adjustting of lighteness technical field especially relates to a LED adjustting of lighteness controller.

Background

At present, the intelligent home industry is hot, many enterprises are involved in the field of intelligent home, and a plurality of intelligent home products are brought out. Because the lighting system is one of the most basic requirements of family life, the intelligent lighting control series products become the preferred entry points of intelligent household practitioners. With the general improvement of science and technology and living standard, the audio-visual experience level of people also shows a trend of rising continuously. Consumers generally have an interest in novel light control equipment, electric lamps in homes are not only lighting equipment, but also more intelligent elements are put into people, and therefore an intelligent light control system becomes a trend.

The existing controller adopts serial port communication, so that the application range is small, and the wiring is troublesome.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a LED brightness adjustment controller has solved because current controller adopts serial communication, and application scope is less, the comparatively troublesome technical problem of wiring.

In order to achieve the above object, the utility model provides a LED brightness adjustment controller, which comprises a power module, a communication module, a processing module and a constant current output module, wherein the power module is electrically connected with the communication module, the processing module and the constant current output module respectively, the communication module is electrically connected with the processing module, and the processing module is electrically connected with the constant current output module;

the communication module comprises a DCDC _ CAN, a U200, a U201 and a U202, wherein a pin 1 of the DCDC _ CAN is input without a power ground GND, a pin 2 of the DCDC _ CAN is input with a power supply of 5V, a pin 3 of the DCDC _ CAN is output with an isolated power ground, a pin 4 of the DCDC _ CAN is output with an isolated power supply of 5V, a pin 6 of the U200 is electrically connected with a pin 1 of the U202 through a CANTX _ ISO network interface, a pin 3 of the U201 is electrically connected with a pin 4 of the U202 through a CANRX _ ISO network interface, a serial port signal is input from the pin 3 of the U200, and CANH and CANL of CAN bus signals are respectively output from the pin 6 and the pin 7 of the U202 through the U200 and the U202; the CAN bus signal is input by

pins

6 and 7 of U202, passes through U202 and U201, and is output as a serial port signal by pin 6 of U201.

Wherein, the U200 and the U2001 are both HCPL-0600, and the U202 is PCA82C250.

The constant current output module is composed of 8 paths of constant current output circuits, and the constant current output circuits are chips AL8806.

The processing module comprises an MCU, a clock Y101 and a clock Y102, wherein pin 1 and pin 2 of the clock Y101 are electrically connected with pin 3 and pin 4 of the MCU respectively, pin 1 and pin 2 of the clock Y102 are electrically connected with pin 5 and pin 6 of the MCU respectively, pin 3 of U200 is electrically connected with pin 43 of the MCU, pin 6 of U201 is electrically connected with pin 44 of the MCU, and PD2, PB3, PB4, PB5, PB6, PB7, PC12 and PC11 in the constant current output module correspond to pin 54, pin 55, pin 56, pin 57, pin 58, pin 59, pin 53 and pin 52 of the MCU in sequence.

Wherein, the MCU adopts STM32F103VBT6.

The power module comprises U400, U401, C400, C401, C402, C403, C404, C405, C407, C408 and 409, the U400 is TD1509-5V, a self-recovery fuse F400 and a voltage dependent resistor RL400 are arranged at the input end of the U400, the C402 is used as a filter capacitor of the input voltage of the U400, the C403, the C404 and the C405 are used as a filter capacitor of the output voltage of +5V of the U400, the U401 is LD1117-3.3V, the C400 and the C401 are used as a filter capacitor of the input voltage of +3.3V of the U401, and the C407, the C408 and the 409 are used as a filter capacitor of the output voltage of +3.3V of the U401.

The utility model discloses a LED luminance regulation controller, this controller CAN handle serial port communication in the module and convert to CAN bus communication, supports 9-36V wide voltage power supply simultaneously, and application scope is bigger like this, and the wiring is more succinct, also is easier to control with other intelligent systems are unified; the signal is input into the constant current control module, the output is controlled by the constant current according to the ambient light, and the brightness of the LED is intelligently adjusted, so that the energy loss is reduced, and the LED intelligent constant current control system is in line with green life.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic block diagram of an LED brightness adjustment controller according to the present invention.

Fig. 2 is a schematic circuit diagram of the communication module of the present invention.

Fig. 3 is a schematic circuit diagram of the constant current output module of the present invention.

Fig. 4 is a schematic circuit diagram of the processing module of the present invention.

Fig. 5 is a schematic circuit diagram of the power module of the present invention.

Detailed Description

The embodiments of the invention will be described in detail hereinafter, examples of which are illustrated in the accompanying drawings, and the embodiments described hereinafter with reference to the drawings are exemplary and intended to be illustrative of the invention and should not be construed as limiting the invention.

Referring to fig. 1-5, the present invention provides an LED brightness adjustment controller, which includes a power module, a communication module, a processing module and a constant current output module, wherein the power module is electrically connected to the communication module, the processing module and the constant current output module, the communication module is electrically connected to the processing module, and the processing module is electrically connected to the constant current output module;

pins

In this embodiment, both the U200 and the U2001 are HCPL-0600, the U202 is PCA82C250, and the circuit where the U200 and the U201 are located is an optical coupling circuit, which mainly functions as an isolation function, can isolate high voltage, protect equipment from being burned out by the high voltage, and can also filter out high frequency interference; the circuit where the U202 is located is a serial port-CAN conversion circuit; a pin 3 of the CON201 is used as an H signal input end of an external CAN communication bus, and a pin 4 is used as an L signal input end of the external CAN communication bus; a pin 6 of the U200 is connected with a pin 1 of the U202 through a CANTX _ ISO network interface, and a pin 3 of the U201 is connected with a pin 4 of the U202 through a CANRX _ ISO network interface; serial port signals are input by a PA12 (pin 3 of the U200), and CANH and CANL of CAN bus signals are respectively output by pin 6 and pin 7 of the U202 through the U200 and the U202; CAN bus signals are input by CANH and CANL (

pins

6 and 7 of the U202), and serial port signals are output by the pin 6 of the U201 through the U202 and the U201.

The constant current output module is composed of 8 paths of constant current output circuits, and the constant current output circuits adopt chips AL8806.

In the present embodiment, the same principle is applied to 8-channel circuits, the first example is AL8806 is 1.5A BUCK driver, and LED05P, LED N is used to drive LED; by inputting the PWM signal generated by the processing module into AL8806 through the CTRL pin (4 pins of AL 8806) via the PD2 (left end of R301), the LED can be controlled to present different brightness according to the PWM duty ratio, as shown in FIG. 3

The processing module comprises an MCU, a clock Y101 and a clock Y102, wherein pin 1 and pin 2 of the clock Y101 are respectively electrically connected with pin 3 and pin 4 of the MCU, pin 1 and pin 2 of the clock Y102 are respectively electrically connected with pin 5 and pin 6 of the MCU, pin 3 of U200 is electrically connected with pin 43 of the MCU, pin 6 of U201 is electrically connected with pin 44 of the MCU, and PD2, PB3, PB4, PB5, PB6, PB7, PC12 and PC11 in the constant current output module sequentially correspond to pin 54, pin 55, pin 56, pin 57, pin 58, pin 59, pin 53 and pin 52 of the MCU; the MCU adopts STM32F103VBT6.

In this embodiment, the MCU of the processing module in the system adopts STM32F103VBT6, which has an operating frequency up to 72MHz and has 1Mb flash and 96KB SRAM inside, as shown in fig. 4 below.

The power module comprises U400, U401, C400, C401, C402, C403, C404, C405, C407, C408 and 409, wherein the U400 is TD1509-5V, the input end of the U400 is provided with a self-recovery fuse F400 and a voltage dependent resistor RL400, the C402 is used as a filter capacitor of the input voltage of the U400, the C403, the C404 and the C405 are used as a filter capacitor of the output voltage of +5V of the U400, the U401 is LD1117-3.3V, the C400 and the C401 are used as a filter capacitor of the input voltage of +3.3V of the U401, and the C407, the C408 and the 409 are used as a filter capacitor of the output voltage of +3.3V of the U401.

In the embodiment, the module completes the direct current power supply of each module of the whole device, and ensures that the device operates normally. As shown in fig. 5, the input voltage of the power module is +12V, and a self-recovery fuse F400 and a voltage dependent resistor RL400 (the self-recovery fuse is used to prevent the current in the power loop from being too large, and the voltage dependent resistor is used to prevent the input voltage from being too large) are added to the input end to self-protect the power module. The direct current voltage conversion chip TD1509 converts the input voltage into +5V output, the C402 is used as a filter capacitor of the input voltage of the TD1509, and the C403, the C404 and the C405 are used as filter capacitors of the +5V output voltage, so that the influence of voltage ripple change is reduced; when the +5V power supply outputs, the LED4A indicator lamp is normally on in the figure. The direct current voltage conversion chip LD1117-3.3V converts the input +5V into +3.3V output, wherein the C400 and the C401 are used as filter capacitors of the +5V power input LD1117-3.3V, and the C407, the C408 and the C409 are used as filter capacitors of the +3.3V power output, so that the influence of voltage ripple change is reduced.

The controller CAN convert serial port communication in the processing module into CAN bus communication, and simultaneously supports 9-36V wide voltage power supply, so that the controller has the advantages of wider application range, simpler wiring and easier unified control with other intelligent systems. This controller STM32F103VBT6 is the core processor of processing module, can intelligent perception external environment, if: light, etc., to generate 8 paths of PWM signals; the signal is input into the constant current control module, the output is controlled by the constant current according to the ambient light, and the brightness of the LED is intelligently adjusted, so that the energy loss is reduced, and the LED intelligent constant current control system is in line with green life.

In order to reduce or eliminate the decline condition of the electronic operating performance, the system coats the circuit board with three-proofing paint and adopts a strong shell design, thereby not only achieving the three-proofing effects of water resistance, moisture resistance and dust resistance, but also enhancing the performances of cold and hot shock resistance, aging resistance, radiation resistance, salt mist resistance, ozone corrosion resistance, vibration resistance, high flexibility, strong adhesive force and the like of the product.

While the above disclosure describes one or more preferred embodiments of the present invention, it is not intended to limit the scope of the claims to such embodiments, and one skilled in the art will understand that all or a portion of the processes performed in the above embodiments may be practiced without departing from the spirit and scope of the claims.

Claims

1. An LED brightness adjusting controller is characterized in that,

the power supply module is electrically connected with the communication module, the processing module and the constant current output module respectively, the communication module is electrically connected with the processing module, and the processing module is electrically connected with the constant current output module;

the communication module comprises a DCDC _ CAN, a U200, a U201 and a U202, wherein 1 pin of the DCDC _ CAN is input without a power ground GND, 2 pin of the DCDC _ CAN is input with a 5V power supply, 3 pin of the DCDC _ CAN is output with an isolation power ground, 4 pin of the DCDC _ CAN is output with an isolation power supply 5V, 6 pin of the U200 is electrically connected with 1 pin of the U202 through a CANTX _ ISO network interface, 3 pin of the U201 is electrically connected with 4 pin of the U202 through a CANRX _ ISO network interface, serial port signals are input from 3 pin of the U200, and CANH and CANL of CAN bus signals are respectively output from 6 pin and 7 pin of the U202 through the U200 and the U202; the CAN bus signal is input by pins 6 and 7 of U202, passes through U202 and U201, and is output as a serial port signal by pin 6 of U201.

2. The LED brightness adjustment controller of claim 1,

the U200 and the U2001 are both HCPL-0600, and the U202 is PCA82C250.

3. The LED brightness adjustment controller of claim 2,

4. The LED brightness adjustment controller of claim 3,

5. The LED brightness adjustment controller of claim 4,

the MCU adopts STM32F103VBT6.

6. The LED brightness adjustment controller of claim 5,