Mainboard temperature detection circuit structure

Abstract

The utility model relates to the technical field of computer structures, in particular to a mainboard temperature detection circuit structure, which comprises a control module connected between a mainboard MOS (Metal Oxide Semiconductor) and a south bridge, and the control module is connected with a TSEN pin on the mainboard MOS so as to convert and obtain the temperature of the mainboard MOS; according to the utility model, the temperature detection TSEN pin of the mainboard MOS chip is connected to the single-chip microcomputer, the single-chip microcomputer calculates the signal to output the temperature of the independent phase of the mainboard MOS, and the South Bridge SMBUS adjusts and balances the analog signal difference caused by transmission attenuation, so that the temperature detection is more accurate, and the reliability of the temperature detection is improved. The temperature of the mainboard is checked in real time by outputting the temperature of the mainboard through the nixie tube, the problem that the working state of the MOS is abnormal due to the fact that the difference between temperature detection and the actual MOS temperature is large is effectively avoided, the use safety and durability are improved, and meanwhile, mainboard MOS temperature detection can be accurately achieved according to the difference between different layout mainboards of different platforms.

Description

Technical Field

[0001] The utility model relates to the technical field of computers, and in particular to a mainboard temperature detection circuit structure. Background Art

[0002] The power consumption of CPU is increasing, and the power consumption and computing power of large online games are increasing, which results in the end users being unable to clearly and accurately understand the temperature of the motherboard MOS during daily use. Long-term high temperature will reduce the life of the motherboard, seriously affecting the end user's experience.

[0003] At present, the traditional method for detecting MOS temperature is to use a thermistor placed near the MOS area of ​​the mainboard to detect the mainboard temperature as the MOS temperature. For example, a PCB temperature detection device disclosed in Chinese patent "Publication No. CN114184294A" includes: a temperature detection circuit arranged on the surface of the target PCB for detecting the temperature value of the target PCB; and a thermistor buried at the position with the highest current density of the target PCB, and the thermistor is connected to the temperature detection circuit through a via arranged on the target PCB.

[0004] However, due to uneven heat conduction and differences in LAYOUT, there is a certain difference between the temperature of the motherboard and the actual temperature of the MOS. In addition, the analog signal detected by the thermistor component will have a certain loss during transmission, which will cause a large difference between the temperature detection and the actual MOS temperature, causing the MOS to work abnormally. Based on this, in order to further accurately solve the problems of the motherboard MOS, we propose a motherboard temperature detection circuit structure. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings in the prior art that the analog signal detected by thermistor components will have a certain loss during transmission, which will lead to a large difference between the temperature detection and the actual MOS temperature, causing abnormal working state of the MOS, and propose a motherboard temperature detection circuit structure.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] Design a motherboard temperature detection circuit structure, including:

[0008] A control module connected between the mainboard MOS and the south bridge, wherein the control module is connected to the TSEN pin on the mainboard MOS to convert and obtain the temperature of the mainboard MOS;

[0009] The control module is connected to the south bridge via an SMBUS bus to balance the transmission attenuation between the control module and the mainboard MOS;

[0010] It also includes a display module, which is electrically connected to the control module to display the current temperature of the mainboard MOS.

[0011] Furthermore, the control module is a single chip microcomputer;

[0012] Wherein, the PC4 pin of the single chip microcomputer is electrically connected to the TSEN pin;

[0013] The SWCLK pin and the SWDIO pin of the single chip microcomputer are electrically connected to the SMBUS_CLK line and the SMBUS_DATA line of the south bridge respectively.

[0014] Furthermore, the single chip microcomputer model is NUC120RC1DN.

[0015] Furthermore, the display module is two digital tubes, and PA0, PA1, PA2, PA3, PA4, PA5, and PA6 of the single-chip microcomputer are respectively connected to the A, B, C, D, E, F, and G pins of the two digital tubes.

[0016] Furthermore, an LED_0 line and an LED_1 line are respectively connected in series between the CT pin and the COM pin of the two digital tubes, and the LED_0 line and the LED_1 line are respectively electrically connected to PB6 and PB7 of the single chip microcomputer.

[0017] The utility model proposes a motherboard temperature detection circuit structure, which has the beneficial effects of: in the utility model, the temperature detection TSEN pin of the motherboard MOS chip is connected to the single-chip microcomputer, the temperature of the single-chip microcomputer outputs the temperature of the motherboard MOS individual phase through signal calculation, and the analog signal difference caused by the balanced transmission attenuation is adjusted through the south bridge SMBUS, so that the temperature detection is more accurate, and the motherboard temperature is output through the digital tube to view the motherboard temperature in real time, which effectively avoids the problem of abnormal working state of MOS caused by the large difference between the temperature detection and the actual MOS temperature, improves the safety and durability of use, and can accurately realize the motherboard MOS temperature detection according to the difference between motherboards with different layouts on different platforms, so that terminal users can understand the status of their computer platforms more flexibly, which is beneficial to prolonging the life of the motherboard and enhancing the playability of the DIY motherboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the single chip microcomputer of the utility model;

[0020] Figure 3 This is a schematic diagram of the mainboard MOS structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the display module structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the south bridge structure of the utility model. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-5 An embodiment of the utility model discloses a motherboard temperature detection circuit structure, wherein the circuit structure includes a control module connected between the motherboard MOS and the south bridge, and the control module is connected to the TSEN pin on the motherboard MOS to convert and obtain the temperature of the motherboard MOS;

[0025] The control module is connected to the south bridge via an SMBUS bus to balance the transmission attenuation between the control module and the mainboard MOS;

[0026] It should be noted that the control module in this embodiment is a single-chip microcomputer. Furthermore, the single-chip microcomputer model in this embodiment is NUC120RC1DN;

[0027] Among them, the South Bridge is the host and the MCU is the slave. After the connection is completed, the MCU can be read and written through the BIOS of the motherboard at a speed of standard mode 100Khz;

[0028] Read operation: read the voltage signal collected by the microcontroller and display it;

[0029] Write operation: The voltage signal of the temperature acquisition PIN received by the microcontroller can be adjusted according to the actual tested error to perform temperature calibration;

[0030] The specific calculation formula between voltage and temperature is:

[0031] V=8*(T-25)+800; where T is the actual temperature, V is the detection voltage of the microcontroller, and the unit of the detection voltage V is mV, which corresponds to ℃.

[0032] Furthermore, it also includes a display module, which is electrically connected to the control module to display the current temperature of the mainboard MOS.

[0033] In some embodiments, the PC4 pin of the microcontroller in the present invention is electrically connected to the TSEN pin;

[0034] The SWCLK pin and the SWDIO pin of the single chip microcomputer are electrically connected to the SMBUS_CLK line and the SMBUS_DATA line of the south bridge respectively.

[0035] On the basis of the above embodiment, the display module is two digital tubes, and PA0, PA1, PA2, PA3, PA4, PA5, and PA6 of the single-chip microcomputer are respectively connected to the A, B, C, D, E, F, and G pins of the two digital tubes.

[0036] In addition, an LED_0 line and an LED_1 line are respectively connected in series between the CT pin and the COM pin of the two digital tubes, and the LED_0 line and the LED_1 line are respectively electrically connected to PB6 and PB7 of the single chip microcomputer.

[0037] In other words, this solution connects the temperature detection TSEN pin of the motherboard MOS chip to the microcontroller, calculates the signal and outputs the temperature of the individual phase of the motherboard MOS, and adjusts the analog signal difference caused by the balanced transmission attenuation through the south bridge SMBUS, making the temperature detection more accurate, and outputs the motherboard temperature through the digital tube to view the motherboard temperature in real time, effectively avoiding the problem of abnormal working status of the MOS caused by the large difference between the temperature detection and the actual MOS temperature, thereby improving the safety and durability of use.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mainboard temperature detection circuit structure, characterized in that: include: A control module connected between the mainboard MOS and the south bridge, wherein the control module is connected to the TSEN pin on the mainboard MOS to convert and obtain the temperature of the mainboard MOS; The control module is connected to the south bridge via an SMBUS bus to balance the transmission attenuation between the control module and the mainboard MOS; It also includes a display module, which is electrically connected to the control module to display the current temperature of the mainboard MOS.

2. The mainboard temperature detection circuit structure according to claim 1, characterized in that: The control module is a single chip microcomputer; Wherein, the PC4 pin of the single chip microcomputer is electrically connected to the TSEN pin; The SWCLK pin and the SWDIO pin of the single chip microcomputer are electrically connected to the SMBUS_CLK line and the SMBUS_DATA line of the south bridge respectively.

3. The mainboard temperature detection circuit structure according to claim 2, characterized in that: The single chip microcomputer model is NUC120RC1DN.

4. The mainboard temperature detection circuit structure according to claim 2, characterized in that: The display module is two digital tubes, and PA0, PA1, PA2, PA3, PA4, PA5, and PA6 of the single-chip microcomputer are respectively connected to the A, B, C, D, E, F, and G pins of the two digital tubes.

5. The mainboard temperature detection circuit structure according to claim 4, characterized in that: An LED_0 line and an LED_1 line are respectively connected in series between the CT pin and the COM pin of the two digital tubes. The LED_0 line and the LED_1 line are respectively electrically connected to PB6 and PB7 of the single chip microcomputer.

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