Multi-interface composite intelligent control combination circuit board structure

Abstract

The utility model discloses a multi -interface composite intelligent control combination circuit board structure, structure is: power conversion unit, remote control receiving unit, luminous lamp board unit, button control unit, speech control unit, light sensor unit, WIFI radio frequency unit and bluetooth communication unit integration on a piece of PCB board, and electric connection is to a composite interface connector, sets up RC filter circuit to stabilize power supply in power conversion unit and remote control receiving unit etc. power input, and the microphone circuit of speech control unit adopts difference signal pair structure, and configures decoupling capacitor and specific bias resistance, simultaneously adopts copper paving and ground layer and power layer separation structure on PCB layout to minimize electromagnetic interference. The utility model has the advantages of compact structure, high stability, high production efficiency and strong versatility.

Description

Technical Field

[0001] This utility model relates to the field of circuit electronics technology, and in particular to a multi-interface composite intelligent control circuit board structure. Background Technology

[0002] Currently, the remote control receiver unit, LED panel unit, button control unit, WIFI radio frequency unit, voice control unit, light sensor unit, and Bluetooth communication unit of TV products on the market are all placed separately as independent modules. This use of independent modules results in numerous communication interfaces on the TV's internal motherboard, cumbersome assembly processes, high manufacturing time, and a lack of overall unit universality, making the overall cost uncompetitive. Utility Model Content

[0003] The purpose of this utility model is to provide a multi-interface composite intelligent control circuit board structure.

[0004] The technical solution adopted in this utility model is:

[0005] The multi-interface composite intelligent control circuit board structure includes a PCB board and integrated composite interface connectors, a power conversion unit, a remote control receiver unit, an LED light board unit, a button control unit, a voice control unit, a light sensor unit, a WIFI radio frequency unit, and a Bluetooth communication unit. The power conversion unit, remote control receiver unit, LED light board unit, button control unit, voice control unit, light sensor unit, WIFI radio frequency unit, and Bluetooth communication unit are electrically connected to the corresponding pins of the composite interface connector. The power conversion unit's input is connected to 5V DC, and the power conversion unit outputs 3.3V DC. The remote control receiver unit processes infrared or radio frequency remote control commands. The LED light board unit provides visual feedback or lighting effects. The button control unit allows direct user input. The voice control unit includes a microphone circuit and a voice processor for voice pickup and recognition. The light sensor unit monitors changes in ambient light to adjust device response. The WIFI radio frequency unit connects to the internet to support remote data exchange. The Bluetooth communication unit is used for short-range device-to-device communication.

[0006] Furthermore, the power input terminals of the power conversion unit and the remote control receiver unit are respectively connected to an RC circuit to filter out noise and stabilize the power supply; the power input terminal of the microphone circuit of the voice control unit is connected to a decoupling capacitor.

[0007] Furthermore, the power conversion unit includes a buck converter chip. The power input terminal of the buck converter chip is connected to 5V DC power through a first RC circuit. The first RC circuit includes a resistor R202, a capacitor C202, and a capacitor C203. The power input terminal of the buck converter chip is connected to one end of capacitor C202, one end of capacitor C203, and one end of resistor R202, respectively. The other end of resistor R202 is connected to 5V DC power, and the other ends of capacitors C202 and C203 are grounded. The first RC circuit filters out noise and increases power supply stability.

[0008] Furthermore, the remote control receiving unit includes an IR receiving chip, one end of which is connected to a 3.3V power supply via a second RC circuit. The second RC circuit includes a resistor R22 and a capacitor C12. One end of the IR receiving chip is connected to one end of the resistor R22, and the other end of the resistor R22 is connected to one end of the capacitor C12 and the 3.3V power supply. The other end of the capacitor C12 is grounded. The second RC circuit filters out noise and increases power supply stability.

[0009] Specifically, the remote control receiving unit is based on conventional infrared receiving circuits in the field, and an RC circuit is connected to the power input terminal of the IR receiving circuit to filter out noise and stabilize the power supply.

[0010] Furthermore, the microphone circuit is a MIC DATA0 / MIC_CLK differential signal pair structure. The microphone circuit includes a first microphone chip and a second microphone chip. The MIC_CLK signal terminal is connected to the clock pins of the first and second microphone chips respectively through an RC circuit. The DATA pins of the first and second microphone chips are each connected to the MIC DATA0 signal terminal through an RC circuit. The power input terminal of the first microphone chip is connected to a 3.3V microphone power supply and one end of the decoupling capacitor C14. The power input terminal of the second microphone chip is connected to a 3.3V microphone power supply and one end of the decoupling capacitor C15. The other ends of the decoupling capacitors C14 and C15 are grounded. The L / R pin of the first microphone chip is connected to the 3.3V microphone power supply through a resistor R14 (10k ohm). The L / R pin of the second microphone chip is grounded through a resistor R15 (10k ohm). Copper ground is laid around the corresponding MIC DATA0 / MIC_CLK signal output on the PCB board to isolate noise. At the same time, the ground plane and power plane of the microphone circuit on the PCB board are set separately to minimize electromagnetic interference.

[0011] Furthermore, the PCB board has several high-frequency signal routing areas, which are configured to be used only for routing high-frequency signal lines, while other signal lines are prohibited from being routed; the high-frequency signal lines on the PCB board have the highest priority routing level; high-frequency signal lines and noise-sensitive lines are arranged at intervals on the PCB board to avoid crossing or long-distance parallel routing.

[0012] This invention adopts the above technical solution to integrate the functional boards currently used in TVs, saving space and simplifying production. However, while integrating, it is necessary to ensure that the signals of each function do not interfere with each other and cause functional abnormalities. Decoupling capacitors, filter inductors, and RC networks are added near the power input and key components to suppress power supply noise. Simultaneously, a comprehensive signal isolation strategy is implemented. The microphone circuit uses differential signal pairs, increases line spacing, adds guard traces, and optimizes ground plane segmentation to minimize electromagnetic interference. Furthermore, the PCB layout and routing follow the principle of prioritizing high-frequency signals, avoiding sensitive line crossings to ensure signal integrity. This invention's structure effectively reduces noise impact, prevents functional failures, and thus improves system stability, energy efficiency, and user experience. Attached Figure Description

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments;

[0014] Figure 1 This is a schematic diagram of the circuit principle of the multi-interface composite intelligent control circuit board structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the circuit structure of the composite interface connector of this utility model;

[0016] Figure 3 This is a schematic diagram of the circuit structure of the power conversion unit of this utility model;

[0017] Figure 4 This is a schematic diagram of the circuit structure of the remote control receiver unit (infrared) of this utility model;

[0018] Figure 5 This is a schematic diagram of the circuit structure of the light-emitting lamp board unit of this utility model;

[0019] Figure 6 This is a schematic diagram of the circuit structure of the button control unit of this utility model;

[0020] Figure 7 This is a schematic diagram of the processor connection circuit structure of the voice control unit of this utility model;

[0021] Figure 8 This is a schematic diagram of the microphone circuit structure of the voice control unit of this utility model;

[0022] Figure 9 This is a schematic diagram of the circuit structure of the optical sensor unit of this utility model;

[0023] Figure 10 This is a schematic diagram of the circuit structure of the WIFI radio frequency unit of this utility model. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0025] like Figures 1 to 10 As shown in the diagram, this utility model discloses a multi-interface composite intelligent control circuit board structure, which includes a PCB board and a composite interface connector, a power conversion unit, a remote control receiving unit, a light-emitting board unit, a button control unit, a voice control unit, a light sensor unit, a WIFI radio frequency unit, and a Bluetooth communication unit integrated on the PCB board. The power conversion unit, remote control receiving unit, light-emitting board unit, button control unit, voice control unit, light sensor unit, WIFI radio frequency unit, and Bluetooth communication unit are respectively electrically connected to the connection pins of the corresponding units on the composite interface connector. The input terminal of the power conversion unit is connected to 5V DC power, and the power conversion unit converts and outputs 3.3V DC power. The remote control receiving unit is used to process infrared or radio frequency remote control commands. The light-emitting board unit is used to provide visual feedback or lighting effects. The button control unit is used for direct user input operation. The voice control unit includes a microphone circuit and a voice processor for voice pickup and voice recognition. The light sensor unit is used to monitor changes in ambient light to adjust the device response. The WIFI radio frequency unit is connected to the Internet to support remote data exchange. The Bluetooth communication unit is used for short-range communication between devices.

[0026] It should be noted that the light-emitting board unit, button control unit, light sensor unit, WIFI radio frequency unit and Bluetooth communication unit in this utility model are all implemented using existing conventional and mature technologies, which will not be described in detail here.

[0027] Furthermore, the power input terminals of the power conversion unit and the remote control receiver unit are respectively connected to an RC circuit to filter out noise and stabilize the power supply; the power input terminal of the microphone circuit of the voice control unit is connected to a decoupling capacitor.

[0028] Furthermore, the power conversion unit includes a buck converter chip. The power input terminal of the buck converter chip is connected to 5V DC power through a first RC circuit. The first RC circuit includes a resistor R202, a capacitor C202, and a capacitor C203. The power input terminal of the buck converter chip is connected to one end of capacitor C202, one end of capacitor C203, and one end of resistor R202, respectively. The other end of resistor R202 is connected to 5V DC power, and the other ends of capacitors C202 and C203 are grounded. The first RC circuit filters out noise and increases power supply stability.

[0029] Furthermore, the remote control receiving unit includes an IR receiving chip, one end of which is connected to a 3.3V power supply via a second RC circuit. The second RC circuit includes a resistor R22 and a capacitor C12. One end of the IR receiving chip is connected to one end of the resistor R22, and the other end of the resistor R22 is connected to one end of the capacitor C12 and the 3.3V power supply. The other end of the capacitor C12 is grounded. The second RC circuit filters out noise and increases power supply stability.

[0030] Specifically, the remote control receiving unit is based on conventional infrared receiving circuits in the field, and an RC circuit is connected to the power input terminal of the IR receiving circuit to filter out noise and stabilize the power supply.

[0031] Furthermore, the microphone circuit is a MIC DATA0 / MIC_CLK differential signal pair structure. The microphone circuit includes a first microphone chip and a second microphone chip. The MIC_CLK signal terminal is connected to the clock pins of the first and second microphone chips respectively through an RC circuit. The DATA pins of the first and second microphone chips are each connected to the MIC DATA0 signal terminal through an RC circuit. The power input terminal of the first microphone chip is connected to a 3.3V microphone power supply and one end of the decoupling capacitor C14. The power input terminal of the second microphone chip is connected to a 3.3V microphone power supply and one end of the decoupling capacitor C15. The other ends of the decoupling capacitors C14 and C15 are grounded. The L / R pin of the first microphone chip is connected to the 3.3V microphone power supply through a resistor R14 (10k ohm). The L / R pin of the second microphone chip is grounded through a resistor R15 (10k ohm). Copper ground is laid around the corresponding MIC DATA0 / MIC_CLK signal output on the PCB board to isolate noise. At the same time, the ground plane and power plane of the microphone circuit on the PCB board are set separately to minimize electromagnetic interference.

[0032] Furthermore, the PCB board has several high-frequency signal routing areas, which are configured to be used only for routing high-frequency signal lines, while other signal lines are prohibited from being routed; the high-frequency signal lines on the PCB board have the highest priority routing level; high-frequency signal lines and noise-sensitive lines are arranged at intervals on the PCB board to avoid crossing or long-distance parallel routing.

[0033] This invention adopts the above technical solution to integrate the functional boards currently used in TVs, saving space and simplifying production. However, while integrating, it is necessary to ensure that the signals of each function do not interfere with each other and cause functional abnormalities. Decoupling capacitors, filter inductors, and RC networks are added near the power input and key components to suppress power supply noise. Simultaneously, a comprehensive signal isolation strategy is implemented. The microphone circuit uses differential signal pairs, increases line spacing, adds guard traces, and optimizes ground plane segmentation to minimize electromagnetic interference. Furthermore, the PCB layout and routing follow the principle of prioritizing high-frequency signals, avoiding sensitive line crossings to ensure signal integrity. This invention's structure effectively reduces noise impact, prevents functional failures, and thus improves system stability, energy efficiency, and user experience.

[0034] Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Without conflict, the embodiments and features in the embodiments of this application can be combined with each other. The components of the embodiments of this application described and illustrated herein can generally be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A multi-interface composite intelligent control circuit board structure, characterized in that: It includes a PCB board and integrated on the PCB board a composite interface connector, a power conversion unit, a remote control receiver unit, an LED light board unit, a button control unit, a voice control unit, a light sensor unit, a WIFI radio frequency unit, and a Bluetooth communication unit. The power conversion unit, remote control receiver unit, LED light board unit, button control unit, voice control unit, light sensor unit, WIFI radio frequency unit, and Bluetooth communication unit are electrically connected to the corresponding connection pins on the composite interface connector. The input terminal of the power conversion unit is connected to 5V DC, and the power conversion unit outputs 3.3V DC. The remote control receiver unit processes infrared or radio frequency remote control commands. The LED light board unit provides visual feedback or lighting effects. The button control unit allows direct user input. The voice control unit includes a microphone circuit and a voice processor for voice pickup and recognition. The light sensor unit monitors changes in ambient light. The WIFI radio frequency unit connects to the internet to support remote data exchange. The Bluetooth communication unit is used for short-range communication between devices.

2. The multi-interface composite intelligent control circuit board structure according to claim 1, characterized in that: The power input terminals of the power conversion unit and the remote control receiver unit are respectively connected to an RC circuit to filter out noise and stabilize the power supply; the power input terminal of the microphone circuit of the voice control unit is connected to a decoupling capacitor.

3. The multi-interface composite intelligent control circuit board structure according to claim 1 or 2, characterized in that: The power conversion unit includes a step-down chip. The power input terminal of the step-down chip is connected to 5V DC through a first RC circuit. The first RC circuit includes a resistor R202, a capacitor C202, and a capacitor C203. The power input terminal of the step-down chip is connected to one end of capacitor C202, one end of capacitor C203, and one end of resistor R202, respectively. The other end of resistor R202 is connected to 5V DC, and the other ends of capacitor C202 and capacitor C203 are grounded.

4. The multi-interface composite intelligent control circuit board structure according to claim 1 or 2, characterized in that: The remote control receiver unit includes an IR receiver chip. One end of the IR receiver chip is connected to a 3.3V power supply through a second RC circuit. The second RC circuit includes a resistor R22 and a capacitor C12. One end of the IR receiver chip is connected to one end of the resistor R22, and the other end of the resistor R22 is connected to one end of the capacitor C12 and the 3.3V power supply. The other end of the capacitor C12 is grounded. The second RC circuit filters out noise and increases power supply stability.

5. The multi-interface composite intelligent control circuit board structure according to claim 1, characterized in that: The microphone circuit is a differential signal pair structure of MIC DATA0 and MIC_CLK. The microphone circuit includes a first microphone chip and a second microphone chip. The MIC_CLK signal terminal is connected to the clock pins of the first and second microphone chips respectively through an RC circuit. The DATA pins of the first and second microphone chips are each connected to the MIC DATA0 signal terminal through an RC circuit. The power input terminal of the first microphone chip is connected to a 3.3V microphone power supply and one end of decoupling capacitor C14. The power input terminal of the second microphone chip is connected to a 3.3V microphone power supply and one end of decoupling capacitor C15. The other ends of decoupling capacitors C14 and C15 are grounded. The L / R pin of the first microphone chip is connected to the 3.3V microphone power supply through resistor R14. The L / R pin of the second microphone chip is grounded through resistor R15.

6. The multi-interface composite intelligent control circuit board structure according to claim 5, characterized in that: Copper ground is laid around the corresponding MIC DATA0 / MIC_CLK signal outputs on the PCB to isolate noise.

7. The multi-interface composite intelligent control circuit board structure according to claim 5 or 6, characterized in that: The ground plane and power plane of the microphone circuit on the PCB are set separately to minimize electromagnetic interference.

8. The multi-interface composite intelligent control circuit board structure according to claim 1, characterized in that: The PCB board has several high-frequency signal routing areas, which are configured to be used only for routing high-frequency signal lines, while other signal lines are prohibited from being routed. The high-frequency signal lines on the PCB board have the highest priority routing level. High-frequency signal lines and noise-sensitive lines are arranged at intervals on the PCB board to avoid crossing or long parallel traces.

Images