CN207612046U - One kind being based on server system overload protection circuit - Google Patents
One kind being based on server system overload protection circuit Download PDFInfo
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- CN207612046U CN207612046U CN201721292416.0U CN201721292416U CN207612046U CN 207612046 U CN207612046 U CN 207612046U CN 201721292416 U CN201721292416 U CN 201721292416U CN 207612046 U CN207612046 U CN 207612046U
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- imon
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- 238000012544 monitoring process Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 101150085905 DCP2 gene Proteins 0.000 claims description 5
- 101100031494 Schizosaccharomyces pombe (strain 972 / ATCC 24843) psu1 gene Proteins 0.000 claims description 5
- 101100422754 Schizosaccharomyces pombe (strain 972 / ATCC 24843) sui1 gene Proteins 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 8
- 230000005611 electricity Effects 0.000 description 4
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model discloses one kind and being based on server system overload protection circuit, is related to server overload protection technology, including several PSU, converting current value to voltage value externally exports；The voltage value of summing circuit, PSU is handled through summing circuit, exports PSU_IMON_SUM；The PSU_PGD of NAND gate, PSU is handled by NAND gate, output signal PSU_PGD_N；Circuit Q1 connects the output end of NAND gate, through circuit Q1 output threshold values IMON_THRESHOLD；Comparator is connected to the output end of summing circuit, circuit Q1；When PSU_IMON_SUM is more than IMON_THRESHOLD, server system overload, CPLD control system power down shutdown.The utility model compares the overcurrent protection chip of integrated circuit, and the load protection circuit built by separating component is at low cost, has greatly saved the cost of server product.
Description
Technical field
The utility model is related to server overload protection technologies, specifically a kind of to be based on server system overload
Protect circuit.
Background technology
With the development and application of computer technology, at present increasingly to the reliability of server system and security requirement
It is high.In general, the reliability in order to ensure server system and safety, server system to each function module of server all
Power supply monitoring can be carried out, when avoiding because of some function module exception, electric current is caused to increased dramatically, and destroys entire server system
System.
In server design, often through overload protection module is increased, real-time guard is carried out to server system.
Currently, the overload protection module used in server system is all integrated circuit type, compares and built by separating component
Overload protection scheme, therefore cost higher is badly in need of developing a kind of server system overload protection circuit, to server
While system plays overload protection, it will not also cause cost raising that can be widely applied.
Invention content
The utility model is directed to the demand and shortcoming of current technology development, provides a kind of excessively negative based on server system
Carry protection circuit.
It is described in the utility model a kind of based on server system overload protection circuit, solve what above-mentioned technical problem used
Technical solution is as follows：Described to be based on server system overload protection circuit, structure includes：
Several PSU have output circuit monitoring function, external for converting current value to voltage value according to a certain ratio
Output；
Summing circuit, the voltage value PSU_IMON that all PSU are externally exported carry out summation process, output through summing circuit
PSU_IMON_SUM；
The PSU_PGD of NAND gate, all PSU is handled by NAND gate, output signal PSU_PGD_N；
Circuit Q1 connects the output end of NAND gate, is controlled its cut-off by the output signal PSU_PGD_N of NAND gate or is led
It is logical；Through Q1 output threshold values IMON_THRESHOLD；
Comparator is connected to the output end of summing circuit, circuit Q1, the output valve PSU_IMON_ for comparing the two
SUM, IMON_THRESHOLD, and output signal PSU_OVER_LOAD；
Circuit Q2 is connected to the output end of comparator, its cut-off is controlled by the output signal PSU_OVER_LOAD of comparator
Or conducting；
CPLD, the output end of connection circuit Q2 export OVERLOAD_FAULT_N to CPLD through circuit Q2；Also, it is all
PSU is directly connected to CPLD by enabled circuit；
When summing circuit output valve PSU_IMON_SUM is more than threshold value IMON_THRESHOLD, then server system is in
The output signal PSU_OVER_LOAD of overload state, comparator is high level, and then circuit Q2 is connected, OVERLOAD_
FAULT_N is pulled low, and CPLD receives server system and is in overload state, so that system is fallen by dragging down PSU_ENABLE
Electricity shutdown.
Further, summing circuit is built by several differential comparators, and each PSU corresponds to a differential comparator.
Further, circuit Q1, circuit Q2 are built by N-MOS pipes, diode.
Further, a resistance R3 is set between circuit Q1 and comparator, a resistance is set between comparator and stand-by power supply
R4, meanwhile, circuit Q1 is parallel with a resistance R5.
Further, if NAND gate output signal PSU_PGD_N is high level, circuit Q1 cut-offs；It is exported through circuit Q1
The value of IMON_THRESHOLD is resistance R4 and (R3+R5) divides obtained value.
Further, if NAND gate output signal PSU_PGD_N is low level, circuit Q1 conductings；It is exported through circuit Q1
The value of IMON_THRESHOLD is the value that R4 and R3 are divided.
Further, it should be based in server system overload protection circuit, PSU1, PSU2 are set, when a PSU works,
The NAND gate output signal PSU_PGD_N is high level, the value that IMON_THRESHOLD is exported through circuit Q1 be resistance R4 and
(R3+R5) obtained value is divided；
When two PSU work, the NAND gate output signal PSU_PGD_N is low level, and IMON_ is exported through circuit Q1
The value of THRESHOLD is the value that resistance R4 and R3 are divided；
In a PSU job or two PSU work, corresponding overload protection value is automatically selected；According to different clothes
Business device system, by the value of regulation resistance R3, R4, R5, to adjust the threshold value of monitoring.
Further, the comparator or circuit Q2 are both provided with stand-by power supply.
Described in the utility model a kind of based on server system overload protection circuit, what is had compared with prior art has
Beneficial effect is：The utility model builds an overload protection circuit by separating component, real in conjunction with the control of PSU and CPLD
In the case of existing multiple PSU working conditions differences, corresponding overload protection value is automatically selected；It realizes in server system accident
When overload, quickly server system is shut down, avoids damaging entire server system, the overcurrent for the integrated circuit that compares
Chip is protected, the load protection circuit built by separating component is at low cost, greatly saves the cost of server product, can be with
It is widely used in server design, there is preferable popularizing value.
Description of the drawings
Illustrate the utility model embodiment or technology contents in the prior art in order to clearer, it is new to this practicality below
Type embodiment or required attached drawing does simple introduction in the prior art.It will be apparent that attached drawing disclosed below is only this
A part of the embodiment of utility model without creative efforts, may be used also to those skilled in the art
With obtain other attached drawings according to these attached drawings, but it both is within the protection scope of the present invention.
Attached drawing 1 is the schematic block diagram of server system overload protection circuit described in embodiment 1；
Attached drawing 2 is the schematic diagram of server system overload protection circuit described in embodiment 3.
Specific implementation mode
The technical issues of to make the technical solution of the utility model, solving and technique effect are more clearly understood, and tie below
Specific embodiment is closed, the technical solution of the utility model is checked, is completely described, it is clear that described embodiment is only
Only it is a part of the embodiment of the utility model, instead of all the embodiments.Based on the embodiments of the present invention, this field
All embodiments that technical staff obtains without making creative work, all in the scope of protection of the utility model
Within.
Embodiment 1:
The present embodiment proposes that one kind being based on server system overload protection circuit, and as shown in Fig. 1, structure includes：
Several PSU, PSU, that is, Power Supply Unit, power supply unit module；There is PSU output circuit to monitor work(
Can, current value can be converted to voltage value according to a certain ratio and externally exported；
Summing circuit is built by several differential comparators, and each PSU corresponds to a differential comparator；All PSU pairs
The voltage value PSU_IMON of outer output carries out summation process through summing circuit, and output valve is denoted as PSU_IMON_SUM；By other electricity
The summing circuit that sub- device is built meets the realization purpose of summing circuit, both is within the protection scope of the present invention；
The PSU_PGD of NAND gate, all PSU is handled by NAND gate, output signal PSU_PGD_N；
Circuit Q1 is built by N-MOS pipes, diode, the output end of NAND gate is connected, by the output signal of NAND gate
PSU_PGD_N controls its cut-off or conducting；Through circuit Q1 output threshold values IMON_THRESHOLD；
Specifically, if PSU_PGD_N is high level, circuit Q1 ends；PSU_PGD_N is low level, circuit Q1 conductings.
The circuit Q1 built by other electronic devices meets the realization purpose of circuit Q1, both is within the protection scope of the present invention.
Comparator is connected to the output end of summing circuit, circuit Q1, the output valve PSU_IMON_ for comparing the two
SUM, IMON_THRESHOLD, and output signal PSU_OVER_LOAD；
Circuit Q2 is built by N-MOS pipes, diode, is connected to the output end of comparator, is believed by the output of comparator
Number PSU_OVER_LOAD controls its cut-off or conducting；The circuit Q2 built by other electronic devices, meets the realization of circuit Q2
Purpose both is within the protection scope of the present invention；
CPLD, i.e. Complex Programmable Logic Device, Complex Programmable Logic Devices；Connect circuit
The output end of Q2 exports OVERLOAD_FAULT_N to CPLD through circuit Q2；Also, all PSU are directly connected by enabled circuit
Meet CPLD.
The present embodiment is based on server system overload protection circuit, and PSU itself monitors PSU current values, current value is pressed
Voltage value is converted into according to a certain ratio externally to export；Summation process is carried out to the voltage value of PSU by summing circuit, exports PSU_
IMON_SUM；
Meanwhile PSU is by a NAND gate output signal PSU_PGD_N, when PSU_PGD_N is high level, control circuit Q1
Cut-off, when PSU_PGD_N is low level, control circuit Q1 is connected, output threshold value IMON_THRESHOLD in the case of two kinds；
When PSU_IMON_SUM is more than IMON_THRESHOLD, then illustrate that server system is in overload state, leads to
The output signal PSU_OVER_LOAD for crossing comparator is high level, and then circuit Q2 conductings, OVERLOAD_FAULT_N can be drawn
Low, CPLD receives server system and is in overload state, it will so that system power failure is shut down by dragging down PSU_ENABLE.
Embodiment 2：
One kind that the present embodiment proposes is based on server system overload protection circuit, on the basis of embodiment 1, increases
Circuit follower can improve the ability of PSU driving subsequent conditioning circuits, further enhance the overload protection circuit performance and
Practicability.
The circuit follower is built by integrated transporting discharging, and the output end of all PSU is connected to the circuit follower.PSU
Inside will monitor the current value of PSU, and being translated into voltage value PSU_IMON according to a certain special ratios externally exports, by electricity
Follower is pressed, the voltage value of PSU_IMON will not be changed after output, while its ability for driving subsequent conditioning circuit can be improved.
Also, the present embodiment be based on server system overload protection circuit, in order to increase circuit versatility and flexibly
Property, a resistance R3 is set between circuit Q1 and comparator, a resistance R4 is set between comparator and stand-by power supply, meanwhile, electricity
Road Q1 is parallel with a resistance R5.
All PSU_PGD are by NAND gate, and when output signal PSU_PGD_N is high level, Q1 cut-offs are exported through Q1
The value of IMON_THRESHOLD, at this point, the value of IMON_THRESHOLD is resistance R4 and (R3+R5) divides obtained value；Output
When signal PSU_PGD_N is low level, Q1 conductings, the value that IMON_THRESHOLD is exported through Q1 is what R4 and R3 was divided
Value.And it is possible to according to different server systems, by the resistance value of regulation resistance R3, R4, R5, to adjust the threshold of monitoring
Value.
Based on server system overload protection circuit, resistance or other component are set between each circuit unit, removed
Above-mentioned technical proposal, other can realize the technical solution of the present embodiment purpose, the scope of protection of the utility model it
It is interior.
Embodiment 3：
One kind that the present embodiment proposes is based on server system overload protection circuit, on the basis of embodiment 2, this reality
Example is applied by taking two PSU of server system setting PSU1, PSU2 as an example, the technical characterstic and technology of the utility model is described in detail
Content.
As shown in Fig. 2, in the server system overload protection circuit, summing circuit is built by two differential comparators
It forms, PSU1, PSU2 correspond to a differential comparator of summing circuit respectively, the two differential comparator output ends are respectively set
Resistance R3 is arranged in resistance R1, resistance R2 between circuit Q1 and comparator, resistance R4 is arranged between comparator and its stand-by power supply,
Circuit Q1 is parallel with resistance R5；In addition, being provided with resistance R6 between circuit Q2 and its stand-by power supply.
The current value of PSU1, PSU2 internal monitoring PSU, and it is translated into voltage value PSU1_ according to a certain special ratios
IMON, PSU2_IMON are externally exported, after voltage follower exports, by summing circuit to PSU1_IMON and PSU2_
IMON carries out summation process, and exports PSU_IMON_SUM, here PSU_IMON_SUM=1/2x (PSU1_IMON+PSU2_
IMON)。
PSU1_PGD and PSU2_PGD then illustrates one by NAND gate when NAND gate output PSU_PGD_N is high level
A PSU is in running order, and Q1 cut-offs export threshold value IMON_THRESHOLD, at this time the value of IMON_THRESHOLD after Q1
Obtained value is divided for resistance R4 and (R3+R5).When NAND gate output PSU_PGD_N is low level, then illustrate that two PSU are equal
Locate working condition, Q1 conductings, the value that threshold value IMON_THRESHOLD is exported after Q1 is the value that R4 and R3 are divided.It realizes
In a PSU job or two PSU work, corresponding overload protection value can be automatically selected；It can be according to different clothes
Business device system, by regulation resistance R3, R4, R5, to adjust the threshold value of monitoring.
When the PSU_IMON_SUM of summing circuit output is more than IMON_THRESHOLD, illustrate that server system has been in
Overload state, then the output PSU_OVER_LOAD of comparator is high level, and Q2 will be connected, OVERLOAD_FAULT_N meetings
It is pulled low, CPLD receives server system and is in overload state, it will by dragging down PSU1_ENABLE and PSU2_
ENABLE enabled systems power down is shut down.
Use above specific case elaborates the principles of the present invention and embodiment, these embodiments
It is merely used to help understand the core technology content of the utility model, the protection domain being not intended to limit the utility model, sheet
The technical solution of utility model is not limited in above-mentioned specific implementation mode.Above-mentioned specific embodiment based on the utility model,
Without departing from the principle of this utility model, any to made by the utility model changes those skilled in the art
Into and modification, should all fall into the scope of patent protection of the utility model.
Claims (10)
1. one kind being based on server system overload protection circuit, which is characterized in that its structure includes：
Several PSU have output circuit monitoring function, externally defeated for converting current value to voltage value according to a certain ratio
Go out；
Summing circuit, the voltage value PSU_IMON that all PSU are externally exported carry out summation process through summing circuit, export PSU_
IMON_SUM；
The PSU_PGD of NAND gate, all PSU is handled by NAND gate, output signal PSU_PGD_N；
Circuit Q1 connects the output end of NAND gate, its cut-off or conducting are controlled by the output signal PSU_PGD_N of NAND gate；Through
Circuit Q1 output threshold values IMON_THRESHOLD；
Comparator is connected to the output end of summing circuit, circuit Q1, output valve PSU_IMON_SUM for both comparing,
IMON_THRESHOLD, and output signal PSU_OVER_LOAD；
Circuit Q2 is connected to the output end of comparator, is controlled its cut-off by the output signal PSU_OVER_LOAD of comparator or is led
It is logical；
CPLD, the output end of connection circuit Q2 export OVERLOAD_FAULT_N to CPLD through circuit Q2；Also, all PSU are logical
It crosses enabled circuit and is directly connected to CPLD；
When the summing circuit output valve PSU_IMON_SUM is more than threshold value IMON_THRESHOLD, server system was in
The output signal PSU_OVER_LOAD of load condition, the comparator is high level, and then the circuit Q2 is connected,
OVERLOAD_FAULT_N is pulled low, and the CPLD receives server system and is in overload state, by dragging down PSU_
ENABLE makes system power failure shut down.
2. a kind of according to claim 1 be based on server system overload protection circuit, which is characterized in that the summation
Circuit is built by several differential comparators, and each PSU corresponds to a differential comparator.
3. a kind of according to claim 2 be based on server system overload protection circuit, which is characterized in that the circuit
Q1, circuit Q2 are managed by N-MOS, diode is built.
4. a kind of according to claim 3 be based on server system overload protection circuit, which is characterized in that the circuit Q1
One resistance R3 is set between comparator, a resistance R4 is set between the comparator and its stand-by power supply；Meanwhile the circuit
One resistance R5 of Q1 parallel connections.
5. a kind of according to claim 4 be based on server system overload protection circuit, which is characterized in that if it is described with it is non-
Door output signal PSU_PGD_N is high level, then the circuit Q1 cut-offs；The value that IMON_THRESHOLD is exported through circuit Q1 is
Resistance R4 and (R3+R5) divide obtained value.
6. a kind of according to claim 4 be based on server system overload protection circuit, which is characterized in that if it is described with it is non-
Door output signal PSU_PGD_N is low level, then the circuit Q1 conductings；The value that IMON_THRESHOLD is exported through circuit Q1 is
The value that resistance R4 and R3 are divided.
7. a kind of according to claim 4 be based on server system overload protection circuit, which is characterized in that setting PSU1,
PSU2, when a PSU works, the NAND gate output signal PSU_PGD_N is high level, and IMON_ is exported through circuit Q1
The value of THRESHOLD is resistance R4 and (R3+R5) divides obtained value；
When two PSU work, the NAND gate output signal PSU_PGD_N is low level, and IMON_ is exported through circuit Q1
The value of THRESHOLD is the value that resistance R4 and R3 are divided；
In a PSU job or two PSU work, corresponding overload protection value is automatically selected；According to different servers
System, by the value of regulation resistance R3, R4, R5, to adjust the threshold value of monitoring.
8. any described a kind of based on server system overload protection circuit according to claim 5 to 7, which is characterized in that also
Including circuit follower, the output end of all PSU is connected to the circuit follower.
9. a kind of according to claim 8 be based on server system overload protection circuit, which is characterized in that the circuit
Follower is built by integrated transporting discharging.
10. a kind of according to claim 9 be based on server system overload protection circuit, which is characterized in that the comparison
Device or circuit Q2 are both provided with stand-by power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721292416.0U CN207612046U (en) | 2017-10-09 | 2017-10-09 | One kind being based on server system overload protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721292416.0U CN207612046U (en) | 2017-10-09 | 2017-10-09 | One kind being based on server system overload protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207612046U true CN207612046U (en) | 2018-07-13 |
Family
ID=62793506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721292416.0U Expired - Fee Related CN207612046U (en) | 2017-10-09 | 2017-10-09 | One kind being based on server system overload protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207612046U (en) |
-
2017
- 2017-10-09 CN CN201721292416.0U patent/CN207612046U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180713 Termination date: 20191009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |