CN109885152A - Applied to the overheating protection circuit and high-performance server on high-performance server - Google Patents
Applied to the overheating protection circuit and high-performance server on high-performance server Download PDFInfo
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- CN109885152A CN109885152A CN201910330798.9A CN201910330798A CN109885152A CN 109885152 A CN109885152 A CN 109885152A CN 201910330798 A CN201910330798 A CN 201910330798A CN 109885152 A CN109885152 A CN 109885152A
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- 230000004224 protection Effects 0.000 title claims abstract description 48
- 238000013021 overheating Methods 0.000 title claims abstract description 42
- 239000003990 capacitor Substances 0.000 claims abstract description 65
- 230000005611 electricity Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 description 11
- 230000002159 abnormal effect Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000036581 peripheral resistance Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
Abstract
The present invention relates to the overheating protection circuits for being applied to high-performance server, including hardware circuit, the hardware circuit include first capacitor, first resistor, triode, second resistance, 3rd resistor, output module；Wherein, first resistor is thermistor；The emitter of the triode is connect with the reset signal one from control panel, the first resistor is connected between the base stage and emitter of the triode, the second resistance is connected between the base stage and ground wire of three pole, the 3rd resistor and the second resistance are in parallel, the output module is connected between the collector and ground wire of the triode, and the first capacitor is connected between the emitter and ground wire of the triode；The output module output reset signal two is to veneer operation chip.In such a way that onboard thermistor is set, when temperature is sufficiently high, the key signal of operation chip is forced to draw and arrives invalid state, allows operation chip not work, to realize overheating protection.
Description
Technical field
The present invention relates to a kind of field of circuit technology more particularly to a kind of overheating protections applied on high-performance server
Circuit and high-performance server.
Background technique
High-performance server is mainly made of several parts such as shell, AC-DC power supply, operation board, control panel and fans, is such as schemed
It is the structural schematic diagram of high-performance server shown in 1.Wherein alternating current is switched to direct current, provisioning server by AC-DC power supply
It uses；Operation board is the arithmetic element of core, there is many operation chips on plate；Control panel is the control unit of core；Fan is used
It radiates in operation board.
The usual power of server is all very big, and operation plate temperature is very high, the ring of device and chip long-term work in high temperature on plate
Under border, various failures can inevitably occur, cause to run abnormal.And since server needs ceaselessly operate for a long time, server
Fan may also can break down, such as stalling or revolving speed it is abnormal.
Due to above, server is once abnormal, and temperature of single plate is likely to steeply rise, or even the service of burning
Device veneer causes fire, this is one and needs the problem of paying much attention to.
It, can be advanced after thering is onboard DC-DC circuit, AC-DC voltage to enter veneer on the server operation plate of some early stages
Row decompression processing is available to device on plate and uses.It, can be in enabled foot (EN) foot of DC-DC controller for this veneer
Upper plus thermistor, when server is abnormal, and temperature is increased to sufficiently high, thermistor resistance value changes, and leads to EN foot
Voltage drop is as low as enabled thresholding hereinafter, DC-DC circuit closing, no longer powers on plate, and server is out of service at this time, temperature drop
It is low, realize overheating protection.Hereinafter referred to as this method is method one.
On newer server operation plate, in order to improve overall efficiency, usually not onboard DC-DC circuit does not have yet
There are relay or MOSFET etc. that can cut off the device of power supply, can not be cut off the power by hardware circuit.In this case, lead to
The method being often used is to carry out overheating protection to server using the house dog of control panel software cooperation AC-DC power supply.Principle is:
Control panel reads temperature value on operation board at regular intervals, when discovery when the temperature is excessively high, just reduce operation board working frequency, or
AC-DC power supply is closed, realizes overheating protection.But control panel software, which also has, runs winged or abnormal possibility, therefore AC-DC power source internal
A settable house dog, when control panel works normally, (such as several milliseconds, a few tens of milliseconds or more long) and AC- at regular intervals
DC power supply communication is primary (commonly referred to as feeding dog), and AC-DC power supply is allowed to know that oneself is working properly.When control panel software anomaly,
With the communication disruption of AC-DC power supply, AC-DC power supply can not receive communication signal (feeding-dog signal) for a long time, it is believed that control panel software
Abnormal, that is, output of cutting off the power, server is out of service at this time.Server overheating protection is realized by the two links.Claim this
Kind method is method two.
The basis that method two is realized is control panel software and AC-DC power supply, this still remains hidden danger.Because software is possible
There is BUG, even if without BUG, it is also possible to occur abnormal or race due to external disturbance and fly, while the house dog of AC-DC power supply
Mechanism may also fail.In either case, it can not all react to overheat condition, server is it is possible to deposit
In the risk that overheat is burnt, this once repeatedly occurred in actual motion environment.
In conclusion in the method one, in the case where onboard DC-DC circuit is arranged in early days, the operational efficiency of complete machine
It can reduce, in the method two, protective value is unstable, and server still has the risk that overheat is burnt.There has been no mention at present
The overheating protection circuit of high efficiency, high stability out.
Summary of the invention
In view of this, present invention mainly solves the overheating protections of high-performance server operation veneer to need depended software, move
Make this unreliable problem, to keep the operational efficiency of server high, and overheating protection stability is high.
The present invention adopts the following technical scheme that, a kind of overheating protection circuit applied on high-performance server, the mistake
Thermal protection circuit includes first capacitor, first resistor, triode, second resistance, 3rd resistor, output module；First electricity
Resistance is thermistor；The emitter of the triode is connect with the reset signal one from control panel, the current collection of the triode
Pole is connected to output module, and the base stage of the triode is connected with first resistor, second resistance, 3rd resistor；First electricity
Resistance one end is connected to the base stage of the triode, and the other end of the first resistor is connected to the emitter of the triode；Institute
The one end for stating second resistance is connected to the base stage of the triode, the other end and first capacitor, the third electricity of the second resistance
Resistance, output module, ground wire are connected to；Described 3rd resistor one end is connected to the base stage of the triode, the 3rd resistor
The other end is connected to first capacitor, second resistance, output module, ground wire；Described first capacitor one end is connected to control panel
Reset signal one, the other end and second resistance, 3rd resistor, output module, the ground wire of the first capacitor are connected to；It is described defeated
Module one end is connected to the collector of the triode out, and the other end is connected to ground wire, the output module output reset signal
Two to veneer operation chip.
The model MMBT3906 of the triode.
The first resistor is negative tempperature coefficient thermistor, and zero power resistance is 10K Ω, and B value is 3950,25 degree of electricity
Resistance is 10K Ω.
The resistance of the second resistance is 4.7K Ω, and the resistance of the 3rd resistor is respectively 20K Ω.
The capacitor of the first capacitor is 0.1uF.
The output module includes the 4th resistance, the 5th resistance, the 6th resistance and the second capacitor；4th resistance one
End is connected to the collector of the triode.The other end of 4th resistance is connected to ground wire；6th resistance and second
Capacitor forms a parallel circuit, and parallel circuit one end that the 6th resistance and the second capacitor are formed is connected to the 5th resistance, institute
It states the parallel circuit other end that the 6th resistance and the second capacitor are formed and is connected to ground wire；Described 5th resistance one end is connected to described
The collector of triode, the other end of the 5th resistance are connected to the parallel connection electricity formed by the 6th resistance and the second capacitor
Road；The reset signal one is 3.3V, and the resistance of the 4th resistance is 10K Ω, and the resistance of the 5th resistance is 750 Ω,
The resistance of 6th resistance is 909 Ω, and the capacitor of second capacitor is 10pF.
The output module includes the 4th resistance and the second capacitor, and the 4th resistance and the second capacitor form electricity in parallel
Road, parallel circuit one end that the 4th resistance and the second capacitor are formed are connected to the collector of the triode, and the described 4th
Another one end of parallel circuit that resistance and the second capacitor are formed is connected to ground wire；The reset signal one be 1.8V, the described 4th
The resistance value of resistance is 10K Ω, and the capacitor of second capacitor is 10pF.
Correspondingly, the present invention also provides a kind of high-performance server, including it is above-described applied to high performance service
Overheating protection circuit on device, the signal input part applied to the overheating protection circuit on high-performance server are connected to control
Making sheet, the signal output end for realizing high-performance server overheating protection circuit are connected to the operation chip on operation board.
Realization high-performance server overheating protection circuit according to the present invention, in the feelings of other outer protection mechanisms fails
Under condition, last one of barrier can be used as, circuit does not depend on software, and safe and reliable, cost is very low.By being onboard arranged
The mode of thermistor forces the key signal of operation chip to draw and arrives invalid state when temperature is sufficiently high, allows operation
Chip does not work, to realize overheating protection.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of server；
Fig. 2 is according to embodiments of the present invention one circuit diagram；
Fig. 3 is according to embodiments of the present invention two circuit diagram；
Wherein, appended drawing reference:
C1, first capacitor；C2, the second capacitor；R1, first resistor；R2, second resistance；R3,3rd resistor；R4, the 4th electricity
Resistance；R5, the 5th resistance；R6, the 6th resistance；Q1, triode.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Applied to the overheating protection circuit on high-performance server, the overheating protection circuit involved in the embodiment of the present invention
Including first capacitor, first resistor, triode, second resistance, 3rd resistor, output module；The first resistor is temperature-sensitive electricity
Resistance；The emitter of the triode is connect with the reset signal one from control panel, and the collector of the triode is connected to defeated
Module out, the base stage of the triode are connected with first resistor, second resistance, 3rd resistor；First resistor one end connection
The base stage of the triode, the other end of the first resistor be connected to the emitter of the triode；The second resistance
One end be connected to the base stage of the triode, the other end and first capacitor, 3rd resistor, the output mould of the second resistance
Block, ground wire are connected to；Described 3rd resistor one end is connected to the base stage of the triode, the other end of the 3rd resistor and
One capacitor, second resistance, output module, ground wire are connected to；Described first capacitor one end is connected to the reset signal one of control panel,
The other end of the first capacitor is connected to second resistance, 3rd resistor, output module, ground wire；Described output module one end
It is connected to the collector of the triode, the other end is connected to ground wire, and the output module output reset signal two to veneer is transported
Calculate chip.
Fig. 1 shows the structural schematic diagram of high-performance server, is based on the basis of high performance service, further includes having realization
High-performance server overheating protection circuit, the signal input part for realizing high-performance server overheating protection circuit are connected to control
Making sheet, the signal output end for realizing high-performance server overheating protection circuit are connected to the operation chip on operation board.
Common triode (such as common positive-negative-positive low-power transistor) and thermistor are used in the embodiment of the present invention
(such as common negative tempperature coefficient thermistor), cooperates a small amount of peripheral resistance capacitance to realize overheating protection.
Specifically, the reset signal voltage of the operation chip on operation board is 1.8V, it is low effective, that is to say, that 1.8V is just
Often work, low level do not work.The reset signal (hereinafter referred to as reset signal one) that control panel comes is 3.3V, is applied to high property
Overheating protection circuit on energy server as shown in Fig. 2, introduce circuit composition and principle briefly below:
First resistor R1 is connected between the base stage and emitter of PNP type triode Q1；Second resistance R2 is connected to three poles
Between the base stage and ground wire GND of pipe Q1；3rd resistor R3 and second resistance R2 are in parallel；4th resistance R4 is connected to triode Q1's
Between collector and ground wire GND；5th resistance R5 and the 6th resistance R6 series connection, be connected to triode Q1 collector and GND it
Between；First capacitor C1 is connected between the collector of triode Q1 and ground wire GND, and the second capacitor C2 and the 6th resistance R6 are in parallel；
Reset signal one is introduced from the emitter of triode Q1, from the 5th resistance R5 and the 6th resistance R6 draw 1.8V reset signal (with
Lower abbreviation reset signal two), reset signal two is added on veneer operation chip.
Specifically, output module includes the 4th resistance, the 5th resistance, the 6th resistance and the second capacitor；4th electricity
Resistance one end is connected to the collector of the triode.The other end of 4th resistance is connected to ground wire；6th resistance and second
Capacitor forms a parallel circuit, and parallel circuit one end that the 6th resistance and the second capacitor are formed is connected to the 5th resistance, institute
It states the parallel circuit other end that the 6th resistance and the second capacitor are formed and is connected to ground wire；Described 5th resistance one end is connected to described
The collector of triode, the other end of the 5th resistance are connected to the parallel connection electricity formed by the 6th resistance and the second capacitor
Road；The reset signal one is 3.3V, and the resistance of the 4th resistance is 10K Ω, and the resistance of the 5th resistance is 750 Ω,
The resistance of 6th resistance is 909 Ω, and the capacitor of second capacitor is 10pF.
Wherein, triode Q1 uses MMBT3906；First resistor R1 is 3950,25 degree of zero power resistance 10K Ω, B value resistances
The negative tempperature coefficient thermistor of value 10K；Second resistance R2 and 3rd resistor R3 is respectively 4.7K and 20K Ω；4th resistance R4
For 10K Ω；5th resistance R5 is 750 Ω；6th resistance R6 is 909 Ω；First capacitor C1 is 0.1uF；Second capacitor C2 is
10pF。
The working principle of Fig. 2 circuit is as follows: the formation point in parallel of first resistor R1 and second resistance R2,3rd resistor R3
Pressure, is added between the base stage and emitter of triode Q1, forms a suitable pressure difference V.At normal temperature, V is sufficiently large, triode
Conducting, collector voltage are high level, and reset signal two is the 1.8V, Ye Jiyun after the 5th resistance R5, the 6th resistance R6 partial pressure
Calculating chip reset foot is height, normal working of single board.
When temperature is raised, the resistance value of negative tempperature coefficient thermistor reduces, and causes V to reduce, when temperature is increased to enough
When high, V can be low enough to that triode is allowed to end, and reset signal two is low level at this time namely operation chip reset foot is
Low, veneer does not work, and temperature reduces, and realizes overheating protection.
The occasion for being 1.8V for reset signal one, the protection circuit of design have lacked the 5th as shown in figure 3, compare with Fig. 2
The connection type of resistance R5 and the 6th resistance R6, the other parts of circuit are identical with Fig. 2, and parameter is also identical.
Specifically, output module includes the 4th resistance and the second capacitor here, the 4th resistance and the second capacitor are formed simultaneously
Join circuit, parallel circuit one end that the 4th resistance and the second capacitor are formed is connected to the collector of the triode, the 4th electricity
Another one end of parallel circuit that resistance and the second capacitor are formed is connected to ground wire；The reset signal one is 1.8V, the 4th electricity
The resistance value of resistance is 10K Ω, and the capacitor of second capacitor is 10pF.
The working principle of Fig. 3 circuit is similar with Fig. 2, is summarized as follows: first resistor R1 and second resistance R2,3rd resistor R3
It is in parallel form partial pressure, be added between the base stage of triode and emitter, form a suitable pressure difference V.At normal temperature, V foot
Enough big, triode ON, collector voltage is high level, and reset signal two is 1.8V high level namely operation chip reset foot
For high level, normal working of single board.
When temperature is raised, the resistance value of negative tempperature coefficient thermistor reduces, and causes V to reduce, when temperature is increased to enough
When high, V can be low enough to that triode is allowed to end, and reset signal two is low level at this time namely operation chip reset foot is
Low level, veneer do not work, and temperature reduces, and realize overheat protector.
It is the high operation chip that then chip stops working conversely, for another kind of reset signal, similarly design protection is electric
Road, reset signal becomes high level when temperature being allowed to increase, and operation chip is allowed to stop working.Principle is similar with Fig. 2, Fig. 3, herein not
It is described in detail again.
Realization high-performance server overheating protection circuit according to the present invention, in the feelings of other outer protection mechanisms fails
Under condition, last one of barrier can be used as, circuit does not depend on software, and safe and reliable, cost is very low.By being onboard arranged
The mode of thermistor forces the key signal of operation chip to draw and arrives invalid state when temperature is sufficiently high, allows operation
Chip does not work, to realize overheating protection.
Listed resistance, capacitance and device type are that example is used in upper texts and pictures, are not fixed.According to work
Voltage and protect threshold value difference, capacitance-resistance value can be adjusted (such as control panel communication level be 5V, operation chip communication
Level is 2V, and needs higher or lower overheating protection threshold value etc.), it can also be replaced with field-effect tube (MOSFET)
Triode.Nevertheless, all should all be in the scope of this patent using overheating protection circuit designed by this patent thinking.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random
Access Memory), disk or CD etc..
In addition, being provided for the embodiments of the invention above applied to the overheating protection circuit and height on high-performance server
Performance server structure is described in detail, and specific case used herein carries out the principle of the present invention and embodiment
It illustrates, the above description of the embodiment is only used to help understand the method for the present invention and its core ideas；Meanwhile for ability
The those skilled in the art in domain, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, comprehensive
Upper described, the contents of this specification are not to be construed as limiting the invention.
Claims (8)
1. a kind of overheating protection circuit applied on high-performance server, the overheating protection circuit includes first capacitor,
One resistance, triode, second resistance, 3rd resistor, output module；It is characterized in that, the first resistor is thermistor；Institute
It states the emitter of triode to connect with the reset signal one from control panel, the collector of the triode is connected to output mould
Block, the base stage of the triode are connected with first resistor, second resistance, 3rd resistor；Described first resistor one end is connected to institute
The base stage of triode is stated, the other end of the first resistor is connected to the emitter of the triode；The one of the second resistance
End is connected to the base stage of the triode, the other end and first capacitor of the second resistance, 3rd resistor, output module,
Line is connected to；Described 3rd resistor one end is connected to the base stage of the triode, the other end of the 3rd resistor and the first electricity
Appearance, second resistance, output module, ground wire are connected to；Described first capacitor one end is connected to the reset signal one of control panel, described
The other end of first capacitor is connected to second resistance, 3rd resistor, output module, ground wire；Output module one end connection
The collector of the triode, the other end be connected to ground wire, the output module output reset signal two to veneer operation core
Piece.
2. the overheating protection circuit according to claim 1 applied on high-performance server, it is characterised in that: described three
The model MMBT3906 of pole pipe.
3. the overheating protection circuit according to claim 1 applied on high-performance server, it is characterised in that: described the
One resistance is negative tempperature coefficient thermistor, and zero power resistance is 10K Ω, and B value is that 3950,25 degree of resistance are 10K Ω.
4. the overheating protection circuit according to claim 1 applied on high-performance server, it is characterised in that: described the
The resistance of two resistance is 4.7K Ω, and the resistance of the 3rd resistor is respectively 20K Ω.
5. the overheating protection circuit according to claim 1 applied on high-performance server, it is characterised in that: described the
The capacitor of one capacitor is 0.1uF.
6. the overheating protection circuit according to any one of claims 1 to 5 applied on high-performance server, feature exist
In: the output module includes the 4th resistance, the 5th resistance, the 6th resistance and the second capacitor；Described 4th resistance one end connects
Connect the collector in the triode.The other end of 4th resistance is connected to ground wire；6th resistance and the second capacitor
Forming a parallel circuit, parallel circuit one end that the 6th resistance and the second capacitor are formed is connected to the 5th resistance, and described the
The parallel circuit other end that six resistance and the second capacitor are formed is connected to ground wire；Described 5th resistance one end is connected to three pole
The other end of the collector of pipe, the 5th resistance is connected to the parallel circuit formed by the 6th resistance and the second capacitor；
The reset signal one is 3.3V, and the resistance of the 4th resistance is 10K Ω, and the resistance of the 5th resistance is 750 Ω, described
The resistance of 6th resistance is 909 Ω, and the capacitor of second capacitor is 10pF.
7. the overheating protection circuit according to any one of claims 1 to 5 applied on high-performance server, feature exist
In, it is characterised in that: the output module includes the 4th resistance and the second capacitor, and the 4th resistance and the second capacitor are formed
Parallel circuit one end that parallel circuit, the 4th resistance and the second capacitor are formed is connected to the collector of the triode, institute
It states another one end of parallel circuit that the 4th resistance and the second capacitor are formed and is connected to ground wire；The reset signal one is 1.8V, institute
The resistance value for stating the 4th resistance is 10K Ω, and the capacitor of second capacitor is 10pF.
8. a kind of high-performance server, which is characterized in that be applied to high-performance including as described in any one of claim 1 to 7
Overheating protection circuit on server, the signal input part connection applied to the overheating protection circuit on high-performance server
Control panel, it is described realize high-performance server overheating protection circuit signal output end be connected to the operation core on operation board
Piece.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910330798.9A CN109885152A (en) | 2019-04-23 | 2019-04-23 | Applied to the overheating protection circuit and high-performance server on high-performance server |
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|---|---|---|---|
| CN201910330798.9A CN109885152A (en) | 2019-04-23 | 2019-04-23 | Applied to the overheating protection circuit and high-performance server on high-performance server |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1195127A (en) * | 1997-03-28 | 1998-10-07 | 国际商业机器公司 | Computer system having thermal sensing with dual voltage sources for sensor stabilization |
| JP3097746U (en) * | 2003-05-13 | 2004-02-05 | 建準電機工業股▲分▼有限公司 | Overheat protection circuit for brushless motor |
| CN202840493U (en) * | 2012-07-24 | 2013-03-27 | 珠海格力电器股份有限公司 | Motor, controller thereof and overheating protection circuit of power drive module thereof |
| CN209514545U (en) * | 2019-04-23 | 2019-10-18 | 深圳市致宸信息科技有限公司 | Applied to the overheating protection circuit and high-performance server on high-performance server |
-
2019
- 2019-04-23 CN CN201910330798.9A patent/CN109885152A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1195127A (en) * | 1997-03-28 | 1998-10-07 | 国际商业机器公司 | Computer system having thermal sensing with dual voltage sources for sensor stabilization |
| JP3097746U (en) * | 2003-05-13 | 2004-02-05 | 建準電機工業股▲分▼有限公司 | Overheat protection circuit for brushless motor |
| CN202840493U (en) * | 2012-07-24 | 2013-03-27 | 珠海格力电器股份有限公司 | Motor, controller thereof and overheating protection circuit of power drive module thereof |
| CN209514545U (en) * | 2019-04-23 | 2019-10-18 | 深圳市致宸信息科技有限公司 | Applied to the overheating protection circuit and high-performance server on high-performance server |
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