CN206805447U

CN206805447U - One kind soar computer temperature detection circuit

Info

Publication number: CN206805447U
Application number: CN201720528430.XU
Authority: CN
Inventors: 王泽方; 聂海武
Original assignee: Shenzhen Rong Da Computer Co Ltd
Current assignee: Shenzhen Rong Da Computer Co Ltd
Priority date: 2017-05-12
Filing date: 2017-05-12
Publication date: 2017-12-26
Anticipated expiration: 2027-05-12

Abstract

It the utility model is related to a kind of temperature detection field, especially one kind soar computer temperature detection circuit, can be with real-time monitoring system temperature and chip temperature, detection circuit of the present utility model is provided with chip U45, chip U45 can detect the temperature coefficient of pyrotoxin on CPU and mainboard, single-chip microcomputer is connected with chip U45 by SMBUS buses and obtains chip U45 internal register information, real-time detection chip U45 temperature and report system, then system is adjusted radiating further according to temperature information, to reach purpose of the control chip U45 temperature in zone of reasonableness, so as to avoid the CPU that soars, mainboard because temperature is too high and caused by burn the phenomenon or system in case of system halt phenomenon of chip, it ensure that the stabilization of system, improve the quality of product, it is simple in construction, manufacturing cost is low.

Description

One kind soar computer temperature detection circuit

Technical field

The utility model is related to a kind of temperature sensing circuit field, especially one kind soar computer temperature detection circuit.

Background technology

Temperature sensor, refer to that temperature can be experienced and be converted into the sensor of usable output signal.

In current main flow Intel, AMD plateform systems, chip internal is equipped with integrated temperature sensor, can supervise in real time Chip self-temperature is surveyed, and protects chip to be influenceed from high temperature.

Existing patent document 201310095743.7 discloses a kind of temperature sensor, including：Resistance, vary with temperature resistance Value；Resistance frequency converting circuit, for resistance variations to be converted into frequency change；Resistance and the resistance frequency converting circuit In same chip；The resistance is the resistance formed using the metal level in resistance frequency converting circuit.

But under this background, on the existing CPU that soars, mainboard and integrated temperature sensor is not provided with, if being Temperature of uniting is too high, can cause system in case of system halt or burn chip, bring serious security incident.

The content of the invention

To solve the above problems, the utility model provide one kind soar computer temperature detection circuit, can monitor in real time System temperature and chip temperature.

The utility model provides one kind and soared computer temperature detection circuit, is exported according to system temperature and chip temperature One corresponding cooling profiles, improve the stability of system.

To achieve the above object, the technical solution adopted in the utility model is：One kind soar computer temperature detection circuit, Include triode Q13, EMC1412-1-ACZL-TR chip U45, the single-chip microcomputer for reading temperature information, the single-chip microcomputer It is connected with system, the chip U45 is located between CPU and mainboard, and No. 1 pin and the power supply P3V3_S0 ends of the chip U45 connect Connect, No. 1 pin of the chip U45 is also grounded by electric capacity C668, No. 2 pins of the chip U45 and triode Q13 base Pole is connected, and the base stage of the triode Q13 is connected with triode Q13 colelctor electrode, the emitter stage and chip of the triode Q13 U45 No. 3 pins connection, No. 2 pins of the chip U45 are also connected by electric capacity C669 with No. 3 pins, the chip U45 No. 4 pins be connected by resistance R609 with power supply P3V3_S0 ends, No. 6 pins of the chip U45 pass through resistance R740 and list Piece machine GPIO17_THERMAL_INT ends connect, and No. 7 pins, No. 8 pins of the chip U45 pass through resistance R606, electricity respectively Resistance R605 is connected with power supply P3V3_S0 ends, No. 7 pins of the chip U45, No. 8 pins also respectively with single-chip microcomputer Thermal_ SDA ends, the connection of Thermal_SCL ends, No. 7 pins, No. 8 pins of the chip U45 also pass through resistance R611, resistance respectively R610 is connected with system EC_Thermal_SCL ends, EC_Thermal_SDA ends.The chip U45 is arranged on CPU and mainboard Pyrotoxin between, single-chip microcomputer is read from chip U45 No. 3 pins and No. 4 pins by SMBUS buses and posted inside chip U45 Storage information, real-time detection chip U45 temperature and reports system and is controlled by regulating system radiating mode, to reach control Purpose of the coremaking piece U45 temperature in zone of reasonableness.

Further, the model of the triode Q13 is PMBS3904.

Further, the electric capacity C669 capacity is 0.0022uF, and institute's electric capacity C668 capacity is 0.1uF.

Further, the resistance R605, resistance R606, resistance R609 resistance are 10K.

The beneficial effects of the utility model are：

For existing technology, detection circuit of the present utility model is provided with chip U45, and chip U45 can be detected The temperature coefficient of pyrotoxin on to CPU and mainboard, single-chip microcomputer are connected with chip U45 by SMBUS buses and obtain chip U45 Internal register information, real-time detection chip U45 temperature and reports system, and then system is subject to further according to temperature information Regulation radiating, to reach purpose of the control chip U45 temperature in zone of reasonableness, so as to avoid the CPU that soars, mainboard because of temperature mistake It is high and cause to burn the phenomenon of chip or system in case of system halt phenomenon, the stabilization of system is ensure that, improves the quality of product, structure Simply, manufacturing cost is low.

Brief description of the drawings

Fig. 1 is the circuit diagram of utility model.

Embodiment

Refer to shown in Fig. 1, the utility model on：One kind soar computer temperature detection circuit, include triode Q13, EMC1412-1-ACZL-TR chip U45, the single-chip microcomputer for reading temperature information, the single-chip microcomputer are connected with system, institute State chip U45 to be located between CPU and mainboard, No. 1 pin of the chip U45 is connected with power supply P3V3_S0 ends, the chip U45 No. 1 pin is also grounded by electric capacity C668, and No. 2 pins of the chip U45 are connected with triode Q13 base stage, described Triode Q13 base stage is connected with triode Q13 colelctor electrode, and the emitter stage of the triode Q13 draws with No. 3 of chip U45 Pin is connected, and No. 2 pins of the chip U45 are also connected by electric capacity C669 with No. 3 pins, and No. 4 pins of the chip U45 lead to Cross resistance R609 to be connected with power supply P3V3_S0 ends, No. 6 pins of the chip U45 pass through resistance R740 and single-chip microcomputer GPIO17_ THERMAL_INT ends are connected, and No. 6 pins of the chip U45 are also connected with test point TP106, and No. 7 of the chip U45 are drawn Pin, No. 8 pins are connected by resistance R606, resistance R605 with power supply P3V3_S0 ends respectively, No. 7 pins, 8 of the chip U45 Number pin is also connected with single-chip microcomputer Thermal_SDA ends, Thermal_SCL ends respectively, No. 7 pins of the chip U45, No. 8 Pin is also connected by resistance R611, resistance R610 with system EC_Thermal_SCL ends, EC_Thermal_SDA ends respectively.

Detection circuit of the present utility model is provided with chip U45, and chip U45 is connected with test point TP106, and chip U45 passes through Test point TP106 can detect the temperature coefficient of pyrotoxin on CPU and mainboard, and single-chip microcomputer passes through SMBUS buses and chip U45 Connection and chip U45 internal register information is obtained, real-time detection chip U45 temperature and report system, then system Radiating is adjusted further according to temperature information, to reach purpose of the control chip U45 temperature in zone of reasonableness, so as to avoid Soar CPU, mainboard because temperature is too high and caused by burn the phenomenon or system in case of system halt phenomenon of chip, ensure that the stabilization of system, The quality of product is improved, simple in construction, manufacturing cost is low.

Specifically, the model of the triode Q13 is PMBS3904.

Specifically, the electric capacity C669 capacity is 0.0022uF, and institute's electric capacity C668 capacity is 0.1uF.

Specifically, the resistance R605, resistance R606, resistance R609 resistance are 10K.

In this specific embodiment, chip U45 is arranged between the pyrotoxin on CPU and mainboard, single in motherboard design Piece machine reads internal register information by SMBUS buses from chip U45 No. 3 pins, No. 4 pins, total by reading SMBUS Line read chip U45 internal register information, in real time monitor chip U45 temperature, chip U45 temperature i.e. be regarded as CPU and Mainboard temperature, go to control heat sink conception by system, with temperature in balance system in rational scope, to reach guarantee system It is stable, the purpose of reliability service, prevent the security hidden trouble caused by system temperature is too high.

Embodiment of above is only that preferred embodiment of the present utility model is described, not to the utility model Scope be defined, on the premise of the utility model design spirit is not departed from, this area ordinary skill technical staff is to reality The various modifications made with new technical scheme and improvement, the protection that claims of the present utility model determine all should be fallen into In the range of.

Claims

1. one kind is soared, computer temperature detects circuit, it is characterised in that includes triode Q13, EMC1412-1-ACZL-TR Chip U45, the single-chip microcomputer for reading temperature information, the single-chip microcomputer are connected with system, and the chip U45 is located at CPU and master Between plate, No. 1 pin of the chip U45 is connected with power supply P3V3_S0 ends, and No. 1 pin of the chip U45 also passes through electric capacity C668 is grounded, and No. 2 pins of the chip U45 are connected with triode Q13 base stage, base stage and three poles of the triode Q13 Pipe Q13 colelctor electrode connection, the emitter stage of the triode Q13 are connected with chip U45 No. 3 pins, and the 2 of the chip U45 Number pin is also connected by electric capacity C669 with No. 3 pins, and No. 4 pins of the chip U45 pass through resistance R609 and power supply P3V3_ S0 ends are connected, and No. 6 pins of the chip U45 are connected by resistance R740 with single-chip microcomputer GPIO17_THERMAL_INT ends, institute State chip U45 No. 7 pins, No. 8 pins are connected by resistance R606, resistance R605 with power supply P3V3_S0 ends respectively, the core Piece U45 No. 7 pins, No. 8 pins are also connected with single-chip microcomputer Thermal_SDA ends, Thermal_SCL ends respectively, the chip U45 No. 7 pins, No. 8 pins also pass through resistance R611, resistance R610 and system EC_Thermal_SCL ends, EC_ respectively Thermal_SDA ends connect.

2. one kind according to claim 1 is soared, computer temperature detects circuit, it is characterised in that the triode Q13 Model be PMBS3904.

3. one kind according to claim 1 is soared, computer temperature detects circuit, it is characterised in that the electric capacity C669 holds It is 0.1uF to measure as 0.0022uF, the electric capacity C668 capacity.

4. one kind according to claim 1 is soared, computer temperature detects circuit, it is characterised in that the resistance R605, Resistance R606, resistance R609 resistance are 10K.