Circuit for improving anti-static and anti-interference capabilities of product

Abstract

The invention, which relates to the technical field of the integrated circuit, discloses a circuit for improving antistatic and anti-interference capabilities of a product, comprising a touch control IC, a signal line and an antistatic module. The touch control IC is connected with the antistatic module through the signal line; the antistatic module is used for performing electrostatic protection on the touch IC; the signal line comprises an AVDD line, an SCL line, an SDA line, an INT line and an RST line; the antistatic module comprises a TVS tube; the first end of the TVS tube is connected with the signal line, and the second end of the TVS tube is connected with a ground line. The anti-static module is arranged on the connection portion of the touch control IC and the signal line, the TVS tube is additionally arranged on the basis that the touch control IC is directly connected with the signal line to resist static electricity, and the anti-static and anti-interference capacity of a product circuit in a high-static-electricity environment is improved in combination with static electricity protection of the touch control IC.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated circuits, and in particular to a circuit for increasing the anti-static and anti-interference capabilities of a product. Background Art

[0002] Electrostatic discharge can cause permanent damage to tiny electronic components, causing performance degradation or failure of electronic products. Therefore, electronic products usually have anti-static designs to protect sensitive internal electronic components from the effects of electrostatic discharge. As the number of outdoor demand scenarios for electronic products increases, in order to adapt to various application environments, the demand for electronic products to resist static electricity is also increasing, which requires electronic products to have higher anti-static capabilities.

[0003] Existing electronic products rely on the antistatic design of the touch IC itself for electrostatic protection. However, relying solely on the antistatic ability of the touch IC cannot meet the needs of electronic products. When encountering high-static application scenarios, the touch IC cannot withstand excessive static electricity, which will cause the touch IC to be broken down and the touch to fail. Summary of the invention

[0004] The purpose of the present invention is to provide a circuit for increasing the anti-static and anti-interference capabilities of a product. The present invention provides an anti-static module on the connection between a touch IC and a signal line, and adds a TVS tube for anti-static treatment on the basis of the direct connection between the touch IC and the signal line. Combined with the electrostatic protection of the touch IC itself, the anti-static and anti-interference capabilities of the product circuit in a high electrostatic environment are improved.

[0005] The purpose of the present invention is achieved by the following technical means: In a first aspect, the present invention provides a circuit for increasing the anti-static and anti-interference capabilities of a product, comprising: a touch control IC, a signal line, and an anti-static module; The touch control IC is connected to the antistatic module via the signal line; The antistatic module is used to provide electrostatic protection for the touch control IC; The signal lines include: AVDD line, SCL line, SDA line, INT line and RST line; The antistatic module includes: a first TVS tube, a second TVS tube, a third TVS tube, a fourth TVS tube and a fifth TVS tube; A first end of the first TVS tube is connected to the AVDD line, and a second end of the first TVS tube is connected to the ground line; A first end of the second TVS tube is connected to the SCL line, and a second end of the second TVS tube is connected to the ground line; The first end of the third TVS tube is connected to the SDA line, and the second end of the third TVS tube is connected to the ground line; The first end of the fourth TVS tube is connected to the INT line, and the second end of the fourth TVS tube is connected to the ground line; A first end of the fifth TVS tube is connected to the RST line, and a second end of the fifth TVS tube is connected to the ground line.

[0006] Preferably, the AVDD line, the SCL line, the SDA line, the INT line and the RST line are connected to the same ground line.

[0007] Preferably, the anti-static module further comprises: a first capacitor; The first end of the first capacitor is connected to the first end of the first TVS tube, and the second end of the first capacitor is connected to the second end of the first TVS tube.

[0008] Preferably, the antistatic module comprises: a second capacitor; The first end of the second capacitor is connected to the first end of the second TVS tube, and the second end of the second capacitor is connected to the second end of the second TVS tube.

[0009] Preferably, the antistatic module comprises: a third capacitor; The first end of the third capacitor is connected to the first end of the third TVS tube, and the second end of the third capacitor is connected to the second end of the third TVS tube.

[0010] Preferably, the antistatic module comprises: a fourth capacitor; The first end of the fourth capacitor is connected to the first end of the fourth TVS tube, and the second end of the fourth capacitor is connected to the second end of the fourth TVS tube.

[0011] Preferably, the antistatic module comprises: a fifth capacitor; The first end of the fifth capacitor is connected to the first end of the fifth TVS tube, and the second end of the fifth capacitor is connected to the second end of the fifth TVS tube.

[0012] Preferably, it also includes: a decoupling module; The decoupling module is connected to the AVDD line, the SCL line and the SDA line; The decoupling module is used to remove noise; The decoupling module includes: a first resistor, a second resistor, a sixth capacitor and a seventh capacitor; The first end of the first resistor is connected to the SCL pin of the touch control IC, and the second end of the first resistor is connected to the first end of the sixth capacitor; The first end of the second resistor is connected to the SDA pin of the touch control IC, and the second end of the second resistor is connected to the first end of the sixth capacitor; The second end of the sixth capacitor is connected to the ground line; A first end of the seventh capacitor is connected to the AVDD pin of the touch control IC, and a second end of the seventh capacitor is connected to the ground line.

[0013] Preferably, it also includes: a voltage detection module; The voltage detection module is connected to the SCL line and the SDA line; The voltage detection module is used to perform voltage detection on the SCL line and the SDA line; The voltage detection module includes: a voltage conversion unit, a voltage display unit, a third resistor and a fourth resistor; The voltage conversion unit is connected to the SCL line and the SDA line; The voltage display unit is connected to the voltage conversion unit; A first end of the third resistor is connected to the SCL pin of the voltage conversion unit, and a second end of the third resistor is connected to the power supply voltage; A first end of the fourth resistor is connected to the SDA pin of the voltage conversion unit, and a second end of the fourth resistor is connected to the power supply voltage.

[0014] Preferably, the voltage detection module is used to perform voltage detection on the SCL line and the SDA line, including: Initializing the voltage display unit and sampling interval; According to a sampling interval, sampling the voltage of the SCL line and the voltage of the SDA line to obtain a sampled voltage; The sampled voltage is subjected to analog-to-electric conversion, and the conversion result is output to the voltage display unit.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides an antistatic module on the connection between the touch IC and the signal line, adds a TVS tube for antistatic on the basis of direct connection between the touch IC and the signal line, and combines the electrostatic protection of the touch IC itself to improve the antistatic and anti-interference capabilities of the product circuit in a high-static environment. The present invention connects the AVDD line, the SCL line, the SDA line, the INT line and the RST line to the same ground line, thereby alleviating static electricity entering the touch IC and improving the anti-static ability of the product circuit; The present invention improves the anti-interference ability of the product circuit by adding a filter capacitor connected in parallel with the TVS tube. The present invention improves the anti-interference ability of the product circuit by arranging a decoupling module on the AVDD line, the SCL line and the SDA line of the touch control IC. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 A schematic diagram of the structure of a circuit for increasing the anti-static and anti-interference capabilities of a product provided in this embodiment; Figure 2 A schematic diagram of the structure of the touch control IC provided in this embodiment; Figure 3 A schematic diagram of the structure of the antistatic module provided in this embodiment; Figure 4 A schematic diagram of the structure of a touch control IC including a decoupling module provided in this embodiment; Figure 5 This is a schematic diagram of the structure of the voltage detection module provided in this embodiment. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0022] This embodiment provides a circuit for increasing the anti-static and anti-interference capabilities of a product. Figure 1 and Figure 2 As shown, it includes: touch IC, AVDD line, SCL line, SDA line, INT line, RST line and antistatic module; The AVDD line is connected to the AVDD pin, SCL line, SDA line, INT line and RST line of the touch IC; The SCL line is connected to the SCL pin of the touch IC; The SDA line is connected to the SDA pin of the touch IC; The INT line is connected to the INT pin of the touch IC; The RST line is connected to the RST pin of the touch IC; The antistatic module is connected to the AVDD line, the SCL line, the SDA line, the INT line and the RST line; Touch IC, used to exchange data with the main controller; AVDD line, used to provide power supply voltage; SCL line, used to synchronize data transmission; SDA line, used to transmit data; INT line, used to interrupt data transmission; RST line, used to reset the main controller and touch IC; Antistatic module for static protection.

[0023] It should be noted that the product refers to an electronic consumer product with a touch screen, such as mobile phones and tablets. The touch IC is an integrated circuit that manages and controls the operation of the touch screen. It is responsible for sending the contact information on the touch screen to the main controller through specific interfaces such as IIC and SPI. The SCL line is the serial clock line, and the SDA line is the serial data line. When the touch IC communicates with the main controller through the IIC bus, the SCL line and the SDA line are involved. Specifically, the SCL pin of the touch IC is connected to the SCL pin of the main controller through the SCL line, and the SDA pin of the touch IC is connected to the SDA pin through the SDA line. Considering that the conventionally designed IIC wiring is directly connected to the pin without any protective measures in between, when external static electricity comes into the motherboard, it will directly act on the touch IC and cause the touch IC to be broken down. Therefore, an anti-static module is set on the IIC wiring and other connecting lines such as the power line AVDD line, the interrupt line INT line and the reset line RST line to protect the touch IC from static electricity. The touch IC also has pins with other functions. Figure 1 This is not shown.

[0024] In this embodiment, an anti-static module is provided at the connection between the touch IC and the signal line, and a TVS tube is added for anti-static protection on the basis of the direct connection between the touch IC and the signal line. Combined with the electrostatic protection of the touch IC itself, the anti-static and anti-interference capabilities of the product circuit in a high electrostatic environment are improved.

[0025] In some embodiments, the AVDD line, the SCL line, the SDA line, the INT line, and the RST line are connected to the same ground line.

[0026] It should be noted that, in addition to adding an antistatic module in the circuit to improve the antistatic ability of the circuit, the AVDD line, SCL line, SDA line, INT line and RST line are also connected to the same ground line to achieve single-point grounding. Specifically, by setting the inner and outer grounds, the connecting wires in the circuit are connected to the inner ground, and the inner ground is connected to a ground reference point through a small resistor. In a preferred embodiment, the specification of the small resistor is 0R / 1% / 0402, wherein 0R indicates that the resistance value is 0 ohms, 1% indicates that the error range of the resistor is ±1%, and 0402 indicates the size of the resistor. When external static electricity enters the mainboard, the external static electricity does not directly enter the touch IC, which slows down a certain amount of external static electricity. At the same time, it reduces the path for external static electricity to enter the touch IC, and the touch IC is electrostatically protected.

[0027] In this embodiment, by connecting the AVDD line, the SCL line, the SDA line, the INT line, and the RST line to the same ground line, static electricity entering the touch IC is alleviated, thereby improving the anti-static capability of the product circuit.

[0028] In some embodiments, Figure 3 As shown, the antistatic module includes: a first TVS tube D1 and a first capacitor C1; A first end of the first TVS tube D1 is connected to the AVDD line, and a second end of the first TVS tube D1 is connected to the ground line; A first end of the first capacitor C1 is connected to a first end of the first TVS tube D1 , and a second end of the first capacitor C1 is connected to a second end of the first TVS tube D1 .

[0029] It should be noted that a first TVS tube D1 is provided between the connection of the AVDD line and the ground line, and when external static electricity enters the circuit, it will pass through the first TVS tube D1. The first TVS tube D1 is in a high-impedance state when the circuit is working normally, and does not affect the operation of the circuit. When the external static electricity is higher than a certain level, the first TVS tube D1 will be turned on to guide the external static electricity to the ground for release. At the same time, a first capacitor C1 connected in parallel with the first TVS tube D1 is provided between the connection of the AVDD line and the ground line. The first capacitor C1 disperses the transient energy, reduces the pressure on the first TVS tube D1, and provides electrostatic protection for the touch IC. The first capacitor C1 can also improve the anti-interference performance of the circuit as a filter capacitor. In a preferred embodiment, the capacitance value of the first capacitor C1 is 4.7 microfarads.

[0030] In this embodiment, a TVS tube is provided between the signal line and the ground line to improve the anti-static ability of the product circuit. On this basis, a filter capacitor is added in parallel with the TVS tube to improve the anti-interference ability of the product circuit.

[0031] In some embodiments, Figure 3 As shown, the antistatic module includes: a second TVS tube D2 and a second capacitor C2; A first end of the second TVS tube D2 is connected to the SCL line, and a second end of the second TVS tube D2 is connected to the ground line; A first end of the second capacitor C2 is connected to a first end of the second TVS tube D2 , and a second end of the second capacitor C2 is connected to a second end of the second TVS tube D2 .

[0032] It should be noted that a second TVS tube D2 is provided between the connection of the SCL line and the ground line, and when external static electricity enters the circuit, it will pass through the second TVS tube D2. The second TVS tube D2 is in a high-impedance state when the circuit is working normally, and does not affect the operation of the circuit. When the external static electricity is higher than a certain level, the second TVS tube D2 will be turned on to guide the external static electricity to the ground for release. At the same time, a second capacitor C2 connected in parallel with the second TVS tube D2 is provided between the connection of the SCL line and the ground line. The second capacitor C2 disperses the transient energy, reduces the pressure on the second TVS tube D2, and performs electrostatic protection on the touch IC. The second capacitor C2 can also improve the anti-interference performance of the circuit as a filter capacitor. In a preferred embodiment, the capacitance value of the second capacitor C2 is 4.7 microfarads.

[0033] In this embodiment, a TVS tube is provided between the signal line and the ground line to improve the anti-static ability of the product circuit. On this basis, a filter capacitor is added in parallel with the TVS tube to improve the anti-interference ability of the product circuit.

[0034] In some embodiments, Figure 3As shown, the antistatic module includes: a third TVS tube D3 and a third capacitor C3; A first end of the third TVS tube D3 is connected to the SDA line, and a second end of the third TVS tube D3 is connected to the ground line; A first end of the third capacitor C3 is connected to a first end of the third TVS tube D3 , and a second end of the third capacitor C3 is connected to a second end of the third TVS tube D3 .

[0035] It should be noted that a third TVS tube D3 is provided between the connection of the SDA line and the ground line, and when external static electricity enters the circuit, it will pass through the third TVS tube D3. The third TVS tube D3 is in a high-impedance state when the circuit is working normally, and does not affect the operation of the circuit. When the external static electricity is higher than a certain level, the third TVS tube D3 will be turned on to guide the external static electricity to the ground for release. At the same time, a third capacitor C3 connected in parallel with the third TVS tube D3 is provided between the connection of the SDA line and the ground line. The third capacitor C3 disperses the transient energy, reduces the bearing pressure of the third TVS tube D3, and performs electrostatic protection on the touch IC. The third capacitor C3 can also improve the anti-interference performance of the circuit as a filter capacitor. In a preferred embodiment, the capacitance value of the third capacitor C3 is 4.7 microfarads.

[0036] In this embodiment, a TVS tube is provided between the signal line and the ground line to improve the anti-static ability of the product circuit. On this basis, a filter capacitor is added in parallel with the TVS tube to improve the anti-interference ability of the product circuit.

[0037] In some embodiments, Figure 3 As shown, the antistatic module includes: a fourth TVS tube D4 and a fourth capacitor C4; A first end of the fourth TVS tube D4 is connected to the INT line, and a second end of the fourth TVS tube D4 is connected to the ground line; A first end of the fourth capacitor C4 is connected to a first end of the fourth TVS tube D4 , and a second end of the fourth capacitor C4 is connected to a second end of the fourth TVS tube D4 .

[0038] It should be noted that a fourth TVS tube D4 is provided between the connection of the INT line and the ground line, and when external static electricity enters the circuit, it will pass through the fourth TVS tube D4. The fourth TVS tube D4 is in a high-impedance state when the circuit is working normally, and does not affect the operation of the circuit. When the external static electricity is higher than a certain level, the fourth TVS tube D4 will be turned on to guide the external static electricity to the ground for release. At the same time, a fourth capacitor C4 connected in parallel with the fourth TVS tube D4 is provided between the connection of the INT line and the ground line. The fourth capacitor C4 disperses the transient energy, reduces the pressure on the fourth TVS tube D4, and performs electrostatic protection on the touch IC. The fourth capacitor C4 can also improve the anti-interference performance of the circuit as a filter capacitor. In a preferred embodiment, the capacitance value of the fourth capacitor C4 is 4.7 microfarads.

[0039] In this embodiment, a TVS tube is provided between the signal line and the ground line to improve the anti-static ability of the product circuit. On this basis, a filter capacitor is added in parallel with the TVS tube to improve the anti-interference ability of the product circuit.

[0040] In some embodiments, Figure 3 As shown, the antistatic module includes: a fifth TVS tube D5 and a fifth capacitor C5; A first end of the fifth TVS tube D5 is connected to the RST line, and a second end of the fifth TVS tube D5 is connected to the ground line; A first end of the fifth capacitor C5 is connected to a first end of the fifth TVS tube D5 , and a second end of the fifth capacitor C5 is connected to a second end of the fifth TVS tube D5 .

[0041] It should be noted that a fifth TVS tube D5 is provided between the connection of the RST line and the ground line, and when external static electricity enters the circuit, it will pass through the fifth TVS tube D5. The fifth TVS tube D5 is in a high-impedance state when the circuit is working normally, and does not affect the operation of the circuit. When the external static electricity is higher than a certain level, the fifth TVS tube D5 will be turned on to guide the external static electricity to the ground for release. At the same time, a fifth capacitor C5 connected in parallel with the fifth TVS tube D5 is provided between the connection of the RST line and the ground line. The fifth capacitor C5 disperses the transient energy, reduces the pressure on the fifth TVS tube D5, and performs electrostatic protection on the touch IC. The fifth capacitor C5 can also improve the anti-interference performance of the circuit as a filter capacitor. In a preferred embodiment, the capacitance value of the fifth capacitor C5 is 4.7 microfarads.

[0042] In this embodiment, a TVS tube is provided between the signal line and the ground line to improve the anti-static ability of the product circuit. On this basis, a filter capacitor is added in parallel with the TVS tube to improve the anti-interference ability of the product circuit.

[0043] In some embodiments, it further includes: a decoupling module; The decoupling module is connected to the AVDD line, the SCL line, and the SDA line; Decoupling module, used to remove noise.

[0044] It should be noted that when the touch IC encounters a fast switching operation, a transient current will be generated, causing voltage fluctuations. Therefore, a decoupling module needs to be set to remove the transient current to maintain the stability of the touch IC. Specifically, a decoupling module is set near the AVDD pin, SCL pin, and SDA pin to remove the noise of the AVDD pin, SCL pin, and SDA pin.

[0045] In this embodiment, by providing a decoupling module on the AVDD line, the SCL line and the SDA line of the touch IC, the anti-interference capability of the product circuit is improved.

[0046] In some embodiments, Figure 4 As shown, the decoupling module includes: a first resistor R1, a second resistor R2 and a sixth capacitor C6; A first end of the first resistor R1 is connected to the SCL pin of the touch IC, and a second end of the first resistor R1 is connected to a first end of the sixth capacitor C6; A first end of the second resistor R2 is connected to the SDA pin of the touch IC, and a second end of the second resistor R2 is connected to a first end of the sixth capacitor C6; A second terminal of the sixth capacitor C6 is connected to the ground line.

[0047] It should be noted that, for the setting of the decoupling module, the scale of the decoupling module should be reduced as much as possible to ensure the size of the product. Specifically, a first resistor R1 is set between the SCL pin and the ground wire, a second resistor R2 is set between the SDA pin and the ground wire, the first resistor R1 and the second resistor R2 are connected to the same ground wire to form a parallel structure, and a sixth capacitor C6 is set between the parallel end and the ground wire. In order to suppress transient current, in a preferred embodiment, the specifications of the first resistor R1 and the second resistor R2 are 4.7K / 6% / 0402. Among them, 4.7K means that the resistance value is 4.7k ohms, 6% means that the error range of the resistor is ±6%, and 0402 represents the size of the resistor. The specification of the sixth capacitor C6 is 10uF / 10V / 0603. Among them, 10uF means that the capacitance value is 10 microfarads, 10V means that the rated voltage is 10 volts, and 0603 represents the size of the capacitor.

[0048] In this embodiment, by providing the first resistor R1, the second resistor R2 and the sixth capacitor C6 on the SCL line and the SDA line of the touch IC, the anti-interference capability of the product circuit is improved.

[0049] In some embodiments, Figure 4As shown, the decoupling module includes: a seventh capacitor C7; A first end of the seventh capacitor C7 is connected to the AVDD pin of the touch IC, and a second end of the seventh capacitor C7 is connected to the ground line.

[0050] It should be noted that a seventh capacitor C7 is provided between the AVDD pin and the ground line to form a series structure to reduce the impedance of the power supply and suppress transient current. In order to better reduce the impedance of the power supply and suppress transient current, in a preferred embodiment, the specification of the seventh capacitor C7 is 10uF / 10V / 0603. Among them, 10uF means that the capacitance value is 10 microfarads, 10V means that the rated voltage is 10 volts, and 0603 means the size of the capacitor.

[0051] In this embodiment, by providing the seventh capacitor C7 on the AVDD line of the touch IC, the anti-interference capability of the product circuit is improved.

[0052] In some embodiments, Figure 5 Also shown are: a voltage detection module; The voltage detection module is connected to the SCL line and the SDA line; Voltage detection module, used to detect the voltage of SCL line and SDA line; The voltage detection module includes: a voltage conversion unit, a voltage display unit, a third resistor R3 and a fourth resistor R4; The voltage conversion unit is connected to the SCL line and the SDA line; The voltage display unit is connected to the voltage conversion unit; A first end of the third resistor R3 is connected to the SCL pin of the voltage conversion unit, and a second end of the third resistor R3 is connected to the power supply voltage; A first end of the fourth resistor R4 is connected to the SDA pin of the voltage conversion unit, and a second end of the fourth resistor R4 is connected to the power supply voltage.

[0053] It should be noted that the anti-static module may fail due to excessive static electricity or other reasons such as too long a time. Regular inspections of the product cannot effectively and timely discover product problems. The voltage detection module is used to detect the voltage of the IIC bus after anti-static treatment, and display the voltage of the IIC bus in real time. When it is detected that the instantaneous voltage is still in a high voltage state, the circuit can be further remedied. Specifically, by initializing the voltage display unit and the sampling interval; the voltage conversion unit samples the voltage of the SCL line and the voltage of the SDA line according to the sampling interval to obtain the sampled voltage, performs analog-to-electric conversion on the sampled voltage, and outputs the conversion result to the voltage display unit.

[0054] The above are only specific embodiments of the present invention, which enable those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A circuit for increasing the anti-static and anti-interference capabilities of a product, characterized in that: include: Touch IC, signal line and antistatic module; The touch control IC is connected to the antistatic module via the signal line; The antistatic module is used to provide electrostatic protection for the touch control IC; The signal lines include: AVDD line, SCL line, SDA line, INT line and RST line; The antistatic module includes: a first TVS tube, a second TVS tube, a third TVS tube, a fourth TVS tube and a fifth TVS tube; A first end of the first TVS tube is connected to the AVDD line, and a second end of the first TVS tube is connected to the ground line; A first end of the second TVS tube is connected to the SCL line, and a second end of the second TVS tube is connected to the ground line; The first end of the third TVS tube is connected to the SDA line, and the second end of the third TVS tube is connected to the ground line; The first end of the fourth TVS tube is connected to the INT line, and the second end of the fourth TVS tube is connected to the ground line; A first end of the fifth TVS tube is connected to the RST line, and a second end of the fifth TVS tube is connected to the ground line.

2. A circuit for increasing the anti-static and anti-interference capabilities of a product according to claim 1, characterized in that: The AVDD line, the SCL line, the SDA line, the INT line, and the RST line are connected to the same ground line.

3. A circuit for increasing the anti-static and anti-interference capabilities of a product according to claim 1, characterized in that: The anti-static module further includes: a first capacitor; The first end of the first capacitor is connected to the first end of the first TVS tube, and the second end of the first capacitor is connected to the second end of the first TVS tube.

4. A circuit for increasing the anti-static and anti-interference capabilities of a product according to claim 1, characterized in that: The anti-static module includes: a second capacitor; The first end of the second capacitor is connected to the first end of the second TVS tube, and the second end of the second capacitor is connected to the second end of the second TVS tube.

5. The circuit for increasing the anti-static and anti-interference capabilities of a product according to claim 1, characterized in that: The anti-static module comprises: a third capacitor; The first end of the third capacitor is connected to the first end of the third TVS tube, and the second end of the third capacitor is connected to the second end of the third TVS tube.

6. A circuit for increasing the anti-static and anti-interference capabilities of a product according to claim 1, characterized in that: The anti-static module comprises: a fourth capacitor; The first end of the fourth capacitor is connected to the first end of the fourth TVS tube, and the second end of the fourth capacitor is connected to the second end of the fourth TVS tube.

7. A circuit for increasing the anti-static and anti-interference capabilities of a product according to claim 1, characterized in that: The anti-static module comprises: a fifth capacitor; The first end of the fifth capacitor is connected to the first end of the fifth TVS tube, and the second end of the fifth capacitor is connected to the second end of the fifth TVS tube.

8. The circuit for increasing the anti-static and anti-interference capabilities of a product according to claim 1, characterized in that: Also includes: Decoupling module; The decoupling module is connected to the AVDD line, the SCL line and the SDA line; The decoupling module is used to remove noise; The decoupling module includes: a first resistor, a second resistor, a sixth capacitor and a seventh capacitor; The first end of the first resistor is connected to the SCL pin of the touch control IC, and the second end of the first resistor is connected to the first end of the sixth capacitor; The first end of the second resistor is connected to the SDA pin of the touch control IC, and the second end of the second resistor is connected to the first end of the sixth capacitor; The second end of the sixth capacitor is connected to the ground line; A first end of the seventh capacitor is connected to the AVDD pin of the touch control IC, and a second end of the seventh capacitor is connected to the ground line.

9. The circuit for increasing the anti-static and anti-interference capabilities of a product according to claim 1, characterized in that: Also includes: Voltage detection module; The voltage detection module is connected to the SCL line and the SDA line; The voltage detection module is used to perform voltage detection on the SCL line and the SDA line; The voltage detection module includes: a voltage conversion unit, a voltage display unit, a third resistor and a fourth resistor; The voltage conversion unit is connected to the SCL line and the SDA line; The voltage display unit is connected to the voltage conversion unit; A first end of the third resistor is connected to the SCL pin of the voltage conversion unit, and a second end of the third resistor is connected to the power supply voltage; A first end of the fourth resistor is connected to the SDA pin of the voltage conversion unit, and a second end of the fourth resistor is connected to the power supply voltage.

10. A circuit for increasing the anti-static and anti-interference capabilities of a product according to claim 9, characterized in that: The voltage detection module is used to perform voltage detection on the SCL line and the SDA line, including: Initializing the voltage display unit and sampling interval; According to a sampling interval, sampling the voltage of the SCL line and the voltage of the SDA line to obtain a sampled voltage; The sampled voltage is subjected to analog-to-electric conversion, and the conversion result is output to the voltage display unit.

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