CN213122962U - Server mainboard consumption monitoring devices - Google Patents
Server mainboard consumption monitoring devices Download PDFInfo
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- CN213122962U CN213122962U CN202021808818.3U CN202021808818U CN213122962U CN 213122962 U CN213122962 U CN 213122962U CN 202021808818 U CN202021808818 U CN 202021808818U CN 213122962 U CN213122962 U CN 213122962U
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The application discloses server mainboard consumption monitoring devices, the device includes: two ends of the precision resistor R1 are respectively connected with a power supply end of the server mainboard to collect the working current of the server mainboard; the input end of the current amplifier U2 is connected in parallel to two sides of the precision resistor R1 to obtain the working current collected by the precision resistor R1, the output end of the current amplifier U2 is connected to the positive input end of the first comparator U1A, and the current amplifier U2 is used for converting the working current into detection voltage; the negative input end of the first comparator U1A is connected to the voltage dividing resistor, and the output end of the first comparator U1A is connected to the first detection end of the data comparison unit. Through the technical scheme in this application, realize the monitoring to the server mainboard consumption through electronic devices such as accurate resistance R1, current amplifier U2, first comparator U1A, second comparator U1B, reduce the complexity of server mainboard design, save mainboard wiring space.
Description
Technical Field
The application relates to the technical field of servers, in particular to a server mainboard power consumption monitoring device.
Background
With the increase of the power consumption of CPUs of servers such as Intel and AMD, and more devices to be supported by the servers, even some servers also support multiple high-power-consumption GPU cards, the power consumption of server systems is also higher and higher.
Taking a standard 2-way rack server as an example, the power consumption can be as high as one or two kilowatts when the system runs in full load, and the power consumption of the four-way and eight-way server systems can be higher. Under such a condition, if any abnormal condition (such as short circuit, overload, etc.) occurs to the board card, if the system cannot protect in time, a certain degree of damage may be caused to the equipment in the machine, and in a severe case, a burn-in phenomenon may even occur.
Therefore, how to monitor the power consumption of the whole system and how to protect the system in time under the abnormal condition of the system become more and more important.
In the prior art, the power consumption monitoring of the server motherboard mainly has the following two modes:
1. the Power Management Bus (PMBUS) interface is used for reading the Power consumption of a Power Supply Unit (PSU), but the method is usually insufficient in precision and large in error, and when the system Power consumption is abnormal, effective protection cannot be timely performed.
2. On one hand, the method is generally only used on a blade server system which needs to support hot plug; on the other hand, the circuit design of the hotspot hot-plug chip is complex, and a plurality of MOSFET field effect transistors which are connected in parallel are matched with a precision resistor to occupy the layout space of the mainboard; furthermore, hotspot hot-plug chips are expensive.
SUMMERY OF THE UTILITY MODEL
The purpose of this application lies in: the monitoring of the power consumption of the server mainboard is realized through electronic devices such as a precise resistor, an amplifier, a comparator and the like, the complexity of the design of the server mainboard is reduced, and the wiring space of the mainboard is saved.
The technical scheme of the first aspect of the application is as follows: provided is a server mainboard power consumption monitoring device, the device includes: the circuit comprises a precision resistor R1, a current amplifier U2, a first comparator U1A, a voltage dividing resistor and a data comparison unit; overcurrent pins at two ends of the precision resistor R1 are respectively connected to a power supply end of the server mainboard to collect the working current of the server mainboard; the input end of the current amplifier U2 is connected in parallel with the detection pins at the two ends of the precision resistor R1 to obtain the working current collected by the precision resistor R1, the output end of the current amplifier U2 is connected with the anode input end of the first comparator U1A, and the current amplifier U2 is used for converting the working current into detection voltage; the negative input end of the first comparator U1A is connected to the voltage dividing resistor, and the output end of the first comparator U1A is connected to the first detection end of the data comparison unit.
In any one of the above technical solutions, further, the voltage dividing resistor includes: a resistor R5 and a resistor R8; one end of the resistor R5 is connected in series with one end of the resistor R8, the other end of the resistor R5 is connected to a circuit high level, the other end of the resistor R8 is connected to a circuit ground terminal, and the voltage across the resistor R8 is a first reference voltage.
In any one of the above technical solutions, further, the apparatus further includes: a transistor Q1 and a diode D1; the base electrode of the triode Q1 is connected with the output end of the first comparator U1A, the collector electrode of the triode Q1 is connected with the negative electrode of the diode D1, and the base electrode and the collector electrode of the triode Q1 are respectively connected with the high level of the circuit through a resistor R4 and a resistor R2; the anode of the diode D1 is connected to the first detection terminal of the data comparison unit.
In any of the above technical solutions, a capacitor C6 is connected in series between the negative input terminal of the first comparator U1A and the circuit ground.
In any one of the above technical solutions, further, the apparatus further includes: a resistor R20; one end of the resistor R20 is connected to the base of the transistor Q1, and the other end of the resistor R20 is connected to the second detection end of the data comparison unit.
In any one of the above technical solutions, further, the apparatus further includes: a second comparator U1B, a resistor R16, and a resistor R19; one end of the resistor R16 is connected in series with one end of the resistor R19, the other end of the resistor R16 is connected to a circuit high level, the other end of the resistor R19 is connected to a circuit ground terminal, and the voltage at the two ends of the resistor R19 is recorded as a second reference voltage; the positive input end of the second comparator U1B is connected to the output end of the current amplifier U2, the negative input end of the second comparator U1B is connected between the resistor R16 and the resistor R19, and the output end of the second comparator U1B is connected to the third detection end of the data comparison unit.
In any one of the above technical solutions, further, the apparatus further includes: a transistor Q2 and a diode D2; the base electrode of the triode Q2 is connected with the output end of the second comparator U1B, the collector electrode of the triode Q2 is connected with the negative electrode of the diode D2, and the base electrode and the collector electrode of the triode Q2 are respectively connected with the high level of the circuit through a resistor R17 and a resistor R15; the anode of the diode D2 is connected to the third detection terminal of the data comparison unit.
In any of the above technical solutions, a capacitor C9 is connected in series between the negative input terminal of the second comparator U1B and the circuit ground.
In any of the above technical solutions, further, the power supply terminal of the current amplifier U2 is connected to the circuit high level and one terminal of the capacitor C7, respectively, and the other terminal of the capacitor C7 is connected to the circuit ground terminal.
The technical scheme of the second aspect of the application is as follows: there is provided a server, where the server is provided with a server motherboard power consumption monitoring device according to any of the first technical solutions, so as to monitor power consumption of a motherboard in the server.
The beneficial effect of this application is:
according to the method, the precision resistor is used as a sampling element, the working current capable of directly reflecting the power consumption of the server mainboard is detected, the detected working current is converted into detection voltage through the current amplifier, the detection voltage is compared with two preset reference voltages (frequency reduction and overcurrent protection triggered voltage) through the comparator, and when corresponding conditions are met, the action of frequency reduction or power supply turning off can be taken to protect the server mainboard.
The monitoring device (circuit) in this application adds this circuit on the mainboard that need not support the hot plug, can play the effect of server mainboard consumption monitoring and overcurrent protection to reduce the design complexity of server mainboard, saved mainboard wiring space.
Drawings
The advantages of the above and/or additional aspects of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic block diagram of a server motherboard power consumption monitoring apparatus according to an embodiment of the present application;
fig. 2 is a schematic block diagram of a server motherboard power consumption monitoring apparatus according to another embodiment of the present application;
fig. 3 is a schematic block diagram of a server motherboard power consumption monitoring apparatus according to yet another embodiment of the present application.
Detailed Description
In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
As shown in fig. 1, the present embodiment provides a server motherboard power consumption monitoring device, which includes: the circuit comprises a precision resistor R1, a current amplifier U2, a first comparator U1A, a voltage dividing resistor and a data comparison unit; overcurrent pins at two ends of the precision resistor R1 are respectively connected to the power supply end of the server mainboard to collect the working current of the server mainboard.
It should be noted that the data comparison unit in this embodiment may be a conventional data processing unit, such as a complex programmable logic device CPLD, and only utilizes the data comparison function of the CPLD.
In this embodiment, the model of the precision resistor R1 is LR2512-23R00075F4, a first port of an overcurrent pin of the precision resistor R1 is connected to a power supply terminal P12V _ VIN of the server motherboard, and a second port of the overcurrent pin is connected to a power supply terminal P12V of the server motherboard, where the first port includes pins 1 and 5 and the second port includes pins 2 and 6. The power supply terminal P12V _ VIN is further connected to one end of each of the capacitors C1 and C2, the other end of each of the capacitors C1 and C2 is connected to the circuit ground, the capacitors C1 and C2 are ceramic capacitors having a model number of C22u25CX1026 and used for filtering signals in the circuit, and similarly, the power supply terminal P12V is connected to the capacitors C3 and C4.
The detection pin 3 of the precision resistor R1 is connected to the positive input end IN + of the current amplifier U2 as one input end, the detection pin 4 of the precision resistor R1 is connected to the negative input end IN-of the current amplifier U2 as the other input end, and the precision resistor R1 sends the detected working current of the server mainboard to the current amplifier U2.
In this embodiment, the type, resistance value, and number of the precision resistor may be configured according to the specific power consumption and current of the system.
The input end of the current amplifier U2 is connected in parallel with the detection pins at the two ends of the precision resistor R1 to obtain the working current collected by the precision resistor R1, and the output end of the current amplifier U2 is connected with the positive input end of the first comparator U1A.
In this embodiment, a current amplifier U2 is provided to convert (amplify) the working current of the server motherboard detected by the precision resistor R1 into a voltage signal, which is recorded as a detection voltage, the current amplifier U2 is of type INA214, and its power supply terminal is connected to the circuit high level P5V _ STBY.
Furthermore, the power supply terminal of the current amplifier U2 is connected to one terminal of the circuit high level P5V _ STBY and one terminal of the capacitor C7, the other terminal of the capacitor C7 is connected to the circuit ground terminal, and the type C0.1u15x0402 of the capacitor C7 is used for filtering the circuit high level P5V _ STBY.
The negative electrode input end of the first comparator U1A is connected to a voltage-dividing resistor, wherein the voltage-dividing resistor is composed of a resistor R5 and a resistor R8 which are connected in series, one end of the resistor R5 is connected in series with one end of the resistor R8, the other end of the resistor R5 is connected to the high level P5V _ STBY of the circuit, the other end of the resistor R8 is connected to the ground end of the circuit, the voltage at the two ends of the resistor R8 is used as a first reference voltage, the magnitude of the first reference voltage can be configured according to the set power consumption reduction frequency point by adjusting the resistance values of the resistor R5 and the resistor R8. The output terminal of the first comparator U1A is connected to the first detection terminal SIGNAL1# of the data comparison unit.
In this embodiment, the first comparator U1A may have a model LM393DR, and its power supply terminals are respectively connected to the circuit high level P5V _ STBY and the capacitor C5.
When the detection voltage received by the first comparator U1A is higher than the first reference voltage, the output voltage of the first comparator U1A changes from low level to high level, which indicates that the power consumption of the server motherboard is large and exceeds the set power consumption reduction point, and the power consumption needs to be reduced.
In order to improve the accuracy of the data comparison unit on monitoring the power consumption of the server mainboard, the device further comprises: a transistor Q1 and a diode D1; the base of the triode Q1 is connected to the output end of the first comparator U1A, the collector of the triode Q1 is connected to the negative electrode of the diode D1, and the base and the collector of the triode Q1 are respectively connected to the high level P5V _ STBY of the circuit through a resistor R4 and a resistor R2; the anode of the diode D1 is connected to the first detection terminal SIGNAL1# of the data comparison unit.
When the output voltage of the first comparator U1A changes from low level to high level, the transistor Q1 is turned on, and at this time, the negative electrode of the diode D1 is at low level, so that the SIGNAL received by the first detection end SIGNAL1# of the data comparison unit CPLD changes from high level to low level, and the data comparison unit CPLD can notify the CPU in the server motherboard to perform down-conversion according to the low level SIGNAL, thereby achieving the purpose of reducing the power consumption of the server motherboard.
Further, a capacitor C6, whose type is c0.1u16x0402, is connected in series between the negative input terminal of the first comparator U1A and the circuit ground terminal, and is used for filtering the first reference voltage received by the negative input terminal.
As shown in fig. 2, on the basis of the above embodiment, in order to prevent the CPU from frequently lowering the frequency due to the misoperation, the apparatus further includes: a resistor R20; one end of the resistor R20 is connected to the base of the transistor Q1, and the other end of the resistor R20 is connected to the second detection terminal T _ SENSE of the data comparison unit.
In this embodiment, the resistor R20 is arranged to transmit the high level SIGNAL output by the first comparator U1A to the second detection terminal T _ SENSE of the data comparison unit CPLD to detect the duration of the high power consumption operation of the server motherboard, when the data comparison unit CPLD determines the low level of the SIGNAL received by the first detection terminal SIGNAL1#, it is determined whether the duration of the high level SIGNAL of the second detection terminal T _ SENSE is greater than or equal to the preset time, if so, the CPU in the server motherboard is notified to perform down-conversion, and if not, the CPU in the server motherboard is not notified to perform down-conversion, so as to achieve the purpose of preventing the CPU from frequently performing down-conversion due to misoperation.
As shown in fig. 3, in a preferred implementation manner of this embodiment, the apparatus may further integrate a power consumption abnormality protection circuit, which specifically includes: a second comparator U1B, a resistor R16, and a resistor R19; one end of the resistor R16 is connected in series with one end of the resistor R19 to serve as a voltage dividing resistor, the other end of the resistor R16 is connected to the high level P5V _ STBY of the circuit, the other end of the resistor R19 is connected to the ground end of the circuit, the voltage across the resistor R19 is recorded as a second reference voltage, and the magnitude of the second reference voltage can be set according to the actual requirements of the system by adjusting the resistance values of the resistor R16 and the resistor R19.
The negative input terminal of the second comparator U1B is connected between the resistor R16 and the resistor R19, and the output terminal of the second comparator U1B is connected to the third detection terminal POWER _ OFF # -of the data comparison unit. The positive input of the second comparator U1B is connected to the output of the current amplifier U2.
Further, a capacitor C9, whose type is c0.1u16x0402, is connected in series between the negative input terminal of the second comparator U1B and the circuit ground terminal, and is used for filtering the second reference voltage received by the negative input terminal.
In this embodiment, the second comparator U1B may be a LM393DR, which has substantially the same function as the first comparator U1A, and its power supply terminals are respectively connected to the circuit high level P5V _ STBY and the capacitor C8.
When the working current detected by the precision resistor R1 increases to a certain value, the detection voltage of the current amplifier U2 increases, so that the detection voltage received by the positive input terminal of the second comparator U1B is greater than the second reference voltage received by the negative input terminal thereof, and at this time, the output signal of the second comparator U1B is converted from low level to high level.
Likewise, the apparatus further comprises: a transistor Q2 and a diode D2; the base of the triode Q2 is connected to the output end of the second comparator U1B, the collector of the triode Q2 is connected to the negative electrode of the diode D2, and the base and the collector of the triode Q2 are connected to the circuit high level P5V _ STBY through a resistor R17 and a resistor R15 respectively; the anode of the diode D2 is connected to the third detection terminal POWER _ OFF # -of the data comparison unit.
Under the action of the high level signal output by the second comparator U1B, the transistor Q2 is turned on, so that the cathode of the diode D2 is at a low level, and the third detection terminal POWER _ OFF # of the data comparison unit CPLD receives the low level signal, so that the data comparison unit CPLD turns OFF all POWER supplies on the server motherboard to protect the devices connected to the system.
In the case of performing power consumption abnormality protection, it is not necessary to detect the duration time in order to avoid the server board from being burned out due to power abnormality.
In this embodiment, a server is further provided, and the server is provided with the server motherboard power consumption monitoring device in the above embodiments, so as to monitor power consumption of the motherboard in the server, and ensure safe operation of the server.
The technical solution of the present application is described in detail above with reference to the accompanying drawings, and the present application provides a server motherboard power consumption monitoring device, which includes: two ends of the precision resistor R1 are respectively connected with a power supply end of the server mainboard to collect the working current of the server mainboard; the input end of the current amplifier U2 is connected in parallel to two sides of the precision resistor R1 to obtain the working current collected by the precision resistor R1, the output end of the current amplifier U2 is connected to the positive input end of the first comparator U1A, and the current amplifier U2 is used for converting the working current into detection voltage; the negative input end of the first comparator U1A is connected to the voltage dividing resistor, and the output end of the first comparator U1A is connected to the first detection end SIGNAL1# of the data comparison unit. Through the technical scheme in this application, realize the monitoring to server mainboard consumption through electronic devices such as precision resistance R1, current amplifier U2, first comparator U1A, reduce the complexity of server mainboard design, save mainboard wiring space.
In the present application, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The shapes of the various elements in the drawings are illustrative and do not preclude the existence of certain differences from the actual shapes, and the drawings are used for the purpose of illustrating the principles of the present application and are not intended to limit the present application.
Although the present application has been disclosed in detail with reference to the accompanying drawings, it is to be understood that such description is merely illustrative and not restrictive of the application of the present application. The scope of the present application is defined by the appended claims and may include various modifications, adaptations, and equivalents of the subject application without departing from the scope and spirit of the present application.
Claims (10)
1. The utility model provides a server mainboard power consumption monitoring devices which characterized in that, the device includes: the circuit comprises a precision resistor R1, a current amplifier U2, a first comparator U1A, a voltage dividing resistor and a data comparison unit;
overcurrent pins at two ends of the precision resistor R1 are respectively connected to a power supply end of a server mainboard to collect working current of the server mainboard;
the input end of the current amplifier U2 is connected in parallel to the detection pins at two ends of the precision resistor R1 to obtain the working current collected by the precision resistor R1, the output end of the current amplifier U2 is connected to the positive input end of the first comparator U1A, and the current amplifier U2 is used for converting the working current into detection voltage;
the negative input end of the first comparator U1A is connected to the voltage dividing resistor, and the output end of the first comparator U1A is connected to the first detection end of the data comparison unit.
2. The server motherboard power consumption monitoring device as recited in claim 1, wherein said voltage dividing resistor comprises: a resistor R5 and a resistor R8;
one end of the resistor R5 is connected in series with one end of the resistor R8, the other end of the resistor R5 is connected to a circuit high level, the other end of the resistor R8 is connected to a circuit ground terminal, and the voltage across the resistor R8 is a first reference voltage.
3. The server motherboard power consumption monitoring apparatus as recited in claim 1, wherein said apparatus further comprises: a transistor Q1 and a diode D1;
the base of the triode Q1 is connected to the output end of the first comparator U1A, the collector of the triode Q1 is connected to the negative electrode of the diode D1, and the base and the collector of the triode Q1 are connected to a circuit high level through a resistor R4 and a resistor R2 respectively;
the anode of the diode D1 is connected to the first detection terminal of the data comparison unit.
4. The device for monitoring power consumption of the server motherboard according to claim 2, wherein a capacitor C6 is connected in series between the negative input terminal of the first comparator U1A and the circuit ground terminal.
5. The server motherboard power consumption monitoring apparatus as recited in claim 3, wherein said apparatus further comprises: a resistor R20;
one end of the resistor R20 is connected to the base of the transistor Q1, and the other end of the resistor R20 is connected to the second detection end of the data comparison unit.
6. The server motherboard power consumption monitoring apparatus as recited in claim 1, wherein said apparatus further comprises: a second comparator U1B, a resistor R16, and a resistor R19;
one end of the resistor R16 is connected in series with one end of the resistor R19, the other end of the resistor R16 is connected to a circuit high level, the other end of the resistor R19 is connected to a circuit ground, and the voltage across the resistor R19 is recorded as a second reference voltage;
a positive input terminal of the second comparator U1B is connected to the output terminal of the current amplifier U2, a negative input terminal of the second comparator U1B is connected between the resistor R16 and the resistor R19, and an output terminal of the second comparator U1B is connected to the third detection terminal of the data comparison unit.
7. The server motherboard power consumption monitoring apparatus as recited in claim 6, said apparatus further comprising: a transistor Q2 and a diode D2;
the base of the triode Q2 is connected to the output end of the second comparator U1B, the collector of the triode Q2 is connected to the negative electrode of the diode D2, and the base and the collector of the triode Q2 are connected to a circuit high level through a resistor R17 and a resistor R15 respectively;
the anode of the diode D2 is connected to the third detection terminal of the data comparison unit.
8. The device for monitoring power consumption of the server motherboard according to claim 6, wherein a capacitor C9 is connected in series between the negative input terminal of the second comparator U1B and the circuit ground terminal.
9. The device for monitoring power consumption of the server motherboard according to claim 1, wherein the power supply terminals of the current amplifier U2 are respectively connected to a circuit high level and one terminal of a capacitor C7, and the other terminal of the capacitor C7 is connected to a circuit ground terminal.
10. A server, characterized in that the server is provided with a server motherboard power consumption monitoring device according to any one of claims 1 to 9, so as to monitor power consumption of a motherboard in the server.
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| CN202021808818.3U CN213122962U (en) | 2020-08-26 | 2020-08-26 | Server mainboard consumption monitoring devices |
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| CN202021808818.3U CN213122962U (en) | 2020-08-26 | 2020-08-26 | Server mainboard consumption monitoring devices |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113204469A (en) * | 2021-05-14 | 2021-08-03 | 山东英信计算机技术有限公司 | GPU power supply protection structure and method based on frequency reduction control |
| CN114509979A (en) * | 2022-02-22 | 2022-05-17 | 中国科学院微电子研究所 | Integrated circuit safety detection system |
| CN116699452A (en) * | 2023-06-15 | 2023-09-05 | 合芯科技(苏州)有限公司 | System and method for testing power efficiency of server main board |
-
2020
- 2020-08-26 CN CN202021808818.3U patent/CN213122962U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113204469A (en) * | 2021-05-14 | 2021-08-03 | 山东英信计算机技术有限公司 | GPU power supply protection structure and method based on frequency reduction control |
| CN114509979A (en) * | 2022-02-22 | 2022-05-17 | 中国科学院微电子研究所 | Integrated circuit safety detection system |
| CN116699452A (en) * | 2023-06-15 | 2023-09-05 | 合芯科技(苏州)有限公司 | System and method for testing power efficiency of server main board |
| CN116699452B (en) * | 2023-06-15 | 2024-01-09 | 合芯科技(苏州)有限公司 | System and method for testing power efficiency of server main board |
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