CN104391557A - Circuit and method for solving RACK node hot plug instant input voltage jitter - Google Patents
Circuit and method for solving RACK node hot plug instant input voltage jitter Download PDFInfo
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- CN104391557A CN104391557A CN201410678198.9A CN201410678198A CN104391557A CN 104391557 A CN104391557 A CN 104391557A CN 201410678198 A CN201410678198 A CN 201410678198A CN 104391557 A CN104391557 A CN 104391557A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 239000010949 copper Substances 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims description 3
- 239000000047 product Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The invention particularly relates to a circuit and a method for solving the problem of RACK node hot plug instant input voltage jitter. The circuit and the method for solving RACK node hot plug instant input voltage jitter comprise a hot plug circuit and a hot plug connector, wherein the hot plug circuit is connected with a power supply copper bar through the hot plug connector, and an RC delay circuit is arranged in the hot plug circuit. The circuit and the method for solving the RACK node hot plug instant input voltage jitter control the enabling signal of the hot plug line by using a simple RC delay circuit, avoid the time period of the instantaneous fluctuation of the power supply voltage by delaying the enabling signal, and enable the enabling signal of the hot plug line to become effective until the power supply voltage is stable; therefore, reliable and safe protection is provided for RACK nodes in the plugging process, false warning triggering caused by hot plugging is completely avoided, and false triggering action is avoided.
Description
Technical field
The present invention relates to RACK equipment cabinet server technical field, particularly a kind of circuit and method solving the shake of RACK node hot plug moment input voltage.
Background technology
Along with the fast development of cloud computing, the RACK equipment cabinet server product of heat radiation and centrally connected power supply is concentrated to arise at the historic moment.Because current product user is higher to the maintenance requirement of band electric heating, what node hot plug power taking was just become is essential.Due in RACK rack, number of nodes is more, and adopt 12V to power, centrally connected power supply will be with incoming current very large simultaneously; In the face of needing the application scenario of carrying high currents, adopt the mode that copper bar is powered, all nodes must by power connector from hot plug power taking copper bar.But there is various hidden danger in use in traditional plug-and-play circuit.
Traditional plug-and-play circuit when RACK node carries out insertion power taking, the enable(enable signal of hot-swapping controller) will be driven high immediately, make hot plug circuit get final product work.But the bad situation causing hot plug to export instability of connector contact just can be there is in the action of inserting power taking.In the moment of hot plug power taking, often there will be because of connector and copper bar loose contact, cause hot-swapping controller to trigger under-voltage protection, this false triggering can bring false alarm to whole node system.Sometimes, this warning or irreversible is (as: because of the alarm signal that under-voltage protection triggers, reach CPU, on trigger node, frequency reducing appears in CPU, the calculated performance of influential system) that cannot accept to RACK product.
For this reason, the present invention proposes a kind of circuit and the method that solve the shake of RACK node hot plug moment input voltage, its object is to: for RACK node is in swapping process, provide reliable and secure protection.Meanwhile, avoid completely in node hot plug process, occur the situation (as: because the shake of voltage triggers under-voltage protection) of false triggering.
Summary of the invention
The present invention, in order to make up the defect of prior art, provides circuit and the method for a kind of safe and reliable solution RACK node hot plug moment input voltage shake.
The present invention is achieved through the following technical solutions:
A kind of circuit solving the shake of RACK node hot plug moment input voltage, it is characterized in that: comprise plug-and-play circuit and hot plug connector, described plug-and-play circuit connects power supply copper bar by hot plug connector, RC delay circuit is provided with, hot-swapping controller and MOS switch in described plug-and-play circuit; Described RC delay circuit connects hot plug connector and hot-swapping controller, and hot-swapping controller connects P12V power supply by MOS switch; Described hot plug connector is connected by sense resistance with MOS switch; Described sense resistance two ends connect hot-swapping controller, and hot-swapping controller regulates and controls the size of sense resistor current by the voltage at control sense resistance two ends, and then control MOS switch.
Described plug-and-play circuit, hot plug connector and power supply copper bar are all connected with ground wire.
Described RC delay circuit comprises the parallel circuit that electric capacity C1 and resistance R3 forms, and with the R2 of parallel circuit in series; Resistance R2 one end connects hot plug connector, and the other end connects parallel circuit and hot-swapping controller, parallel circuit other end ground wire.
Described hot-swapping controller is also directly connected with RACK node by signal wire.
The present invention solves the method for RACK node hot plug moment input voltage shake, it is characterized in that: after described plug-and-play circuit is inserted hot plug connector, first electric capacity C1 is charged, effect due to the resistance R3 in parallel with electric capacity C1 can make the enable signal voltage of hot-swapping controller slowly rise, and avoids the time period that momentary fluctuation appears in supply voltage; When enable signal voltage rise is to the enable level of hot-swapping controller, hot plug circuit is started working, and MOS switch in circuit is opened simultaneously, and hot plug circuit normally works.
When described hot plug circuit normally works, hot-swapping controller also sends PWR GOOD signal to RACK node simultaneously.
The invention has the beneficial effects as follows: the circuit of this solution RACK node hot plug moment input voltage shake and method, utilize simple R C delay circuit to control the enable signal of hot plug circuit, postpone to avoid by enable signal the time period that momentary fluctuation appears in supply voltage, until supply voltage steadily after, the enable signal of hot plug circuit becomes effectively; Thus in swapping process, provide reliable, safe protection for RACK node, avoid the warning of the mistake brought due to hot plug to trigger simultaneously completely, avoid occurring false triggering action.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Accompanying drawing 1 is power supply the principle schematic diagram of the present invention.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.The circuit of this solution RACK node hot plug moment input voltage shake, comprise plug-and-play circuit and hot plug connector, described plug-and-play circuit connects power supply copper bar by hot plug connector, is provided with RC delay circuit, hot-swapping controller and MOS switch in described plug-and-play circuit; Described RC delay circuit connects hot plug connector and hot-swapping controller, and hot-swapping controller connects P12V power supply by MOS switch; Described hot plug connector is connected by sense resistance with MOS switch; Described sense resistance two ends connect hot-swapping controller, and hot-swapping controller regulates and controls the size of sense resistor current by the voltage at control sense resistance two ends, and then control MOS switch.
Described plug-and-play circuit, hot plug connector and power supply copper bar are all connected with ground wire.
Described RC delay circuit comprises the parallel circuit that electric capacity C1 and resistance R3 forms, and with the R2 of parallel circuit in series; Resistance R2 one end connects hot plug connector, and the other end connects parallel circuit and hot-swapping controller, parallel circuit other end ground wire.
Described hot-swapping controller is also directly connected with RACK node by signal wire.
The concrete grammar of this solution RACK node hot plug moment input voltage shake is: after described plug-and-play circuit is inserted hot plug connector, first electric capacity C1 is charged, effect due to the resistance R3 in parallel with electric capacity C1 can make the enable signal voltage of hot-swapping controller slowly rise, and avoids the time period that momentary fluctuation appears in supply voltage; When enable signal voltage rise is to the enable level of hot-swapping controller, hot plug circuit is started working, and MOS switch in circuit is opened simultaneously, and hot plug circuit normally works.
When described hot plug circuit normally works, hot-swapping controller also sends PWR GOOD signal to RACK node simultaneously.
Concrete delay time can be determined according to the time (greatly about 0.5s ~ 1s) of reality plug, and then determines the resistance R2 of RC delay circuit, the value of resistance R3 and electric capacity C1.
The present invention utilizes simple RC charging circuit to the enable signal time delay of hot-swapping controller; optimize RACK rack interior joint hot plug circuit; solve the problem of the supply voltage of interior nodes during this period of time instability because node hot plug moment connector and copper bar loose contact cause; avoid hot plug circuit and occur under-voltage protection misoperation; and its whole node caused occurs that operation irregularity situation is (as: because of the alarm signal that under-voltage protection triggers; reach CPU, on trigger node there is frequency reducing etc. in CPU).
Claims (6)
1. one kind solves the circuit of RACK node hot plug moment input voltage shake, it is characterized in that: comprise plug-and-play circuit and hot plug connector, described plug-and-play circuit connects power supply copper bar by hot plug connector, RC delay circuit is provided with, hot-swapping controller and MOS switch in described plug-and-play circuit; Described RC delay circuit connects hot plug connector and hot-swapping controller, and hot-swapping controller connects P12V power supply by MOS switch; Described hot plug connector is connected by sense resistance with MOS switch; Described sense resistance two ends connect hot-swapping controller, and hot-swapping controller regulates and controls the size of sense resistor current by the voltage at control sense resistance two ends, and then control MOS switch.
2. the circuit of solution RACK node hot plug moment input voltage according to claim 1 shake, it is characterized in that: described plug-and-play circuit, hot plug connector and power supply copper bar are all connected with ground wire.
3. the circuit of solution RACK node hot plug moment input voltage according to claim 1 shake, is characterized in that: described RC delay circuit comprises the parallel circuit that electric capacity C1 and resistance R3 forms, and with the R2 of parallel circuit in series; Resistance R2 one end connects hot plug connector, and the other end connects parallel circuit and hot-swapping controller, parallel circuit other end ground wire.
4. the circuit of solution RACK node hot plug moment input voltage according to claim 1 shake, is characterized in that: described hot-swapping controller is also directly connected with RACK node by signal wire.
5. the method for the solution RACK node hot plug moment input voltage shake according to claim 1,2,3 and 4, it is characterized in that: after described plug-and-play circuit is inserted hot plug connector, first electric capacity C1 is charged, effect due to the resistance R3 in parallel with electric capacity C1 can make the enable signal voltage of hot-swapping controller slowly rise, and avoids the time period that momentary fluctuation appears in supply voltage; When enable signal voltage rise is to the enable level of hot-swapping controller, hot plug circuit is started working, and MOS switch in circuit is opened simultaneously, and hot plug circuit normally works.
6. the method for solution RACK node hot plug moment input voltage according to claim 5 shake, it is characterized in that: when described hot plug circuit normally works, hot-swapping controller also sends PWR GOOD signal to RACK node simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410678198.9A CN104391557A (en) | 2014-11-24 | 2014-11-24 | Circuit and method for solving RACK node hot plug instant input voltage jitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410678198.9A CN104391557A (en) | 2014-11-24 | 2014-11-24 | Circuit and method for solving RACK node hot plug instant input voltage jitter |
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| Publication Number | Publication Date |
|---|---|
| CN104391557A true CN104391557A (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410678198.9A Pending CN104391557A (en) | 2014-11-24 | 2014-11-24 | Circuit and method for solving RACK node hot plug instant input voltage jitter |
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| CN (1) | CN104391557A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129980A (en) * | 2016-06-30 | 2016-11-16 | 山东超越数控电子有限公司 | A kind of hot-swappable circuit with Power Limitation function |
| CN107038140A (en) * | 2017-04-17 | 2017-08-11 | 广东浪潮大数据研究有限公司 | A kind of RACK servers and method for avoiding damaging chip when node heat is slotting |
| CN107357707A (en) * | 2017-07-18 | 2017-11-17 | 郑州云海信息技术有限公司 | A kind of hot plug framework, storage server and method for reducing switching power loss |
| CN107562175A (en) * | 2017-09-06 | 2018-01-09 | 郑州云海信息技术有限公司 | It is a kind of to reduce the method and device that MOSFET is lost in warm connection function module |
| CN107834612A (en) * | 2016-09-14 | 2018-03-23 | 航天科工惯性技术有限公司 | For with the Power Supply Monitoring instrument and method for boring instrument |
| CN109188242A (en) * | 2018-08-29 | 2019-01-11 | 郑州云海信息技术有限公司 | A kind of time sequence test method, device and VR chip |
| CN111258403A (en) * | 2020-02-10 | 2020-06-09 | 苏州浪潮智能科技有限公司 | Control device for centralized power supply of server |
| CN112380074A (en) * | 2020-11-10 | 2021-02-19 | 中科可控信息产业有限公司 | Connector processing method and device, processing module and electronic equipment |
| CN113448905A (en) * | 2021-06-13 | 2021-09-28 | 苏州浪潮智能科技有限公司 | Equipment hot adding method, system, equipment and medium |
-
2014
- 2014-11-24 CN CN201410678198.9A patent/CN104391557A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129980A (en) * | 2016-06-30 | 2016-11-16 | 山东超越数控电子有限公司 | A kind of hot-swappable circuit with Power Limitation function |
| CN107834612A (en) * | 2016-09-14 | 2018-03-23 | 航天科工惯性技术有限公司 | For with the Power Supply Monitoring instrument and method for boring instrument |
| CN107038140A (en) * | 2017-04-17 | 2017-08-11 | 广东浪潮大数据研究有限公司 | A kind of RACK servers and method for avoiding damaging chip when node heat is slotting |
| CN107357707A (en) * | 2017-07-18 | 2017-11-17 | 郑州云海信息技术有限公司 | A kind of hot plug framework, storage server and method for reducing switching power loss |
| CN107562175A (en) * | 2017-09-06 | 2018-01-09 | 郑州云海信息技术有限公司 | It is a kind of to reduce the method and device that MOSFET is lost in warm connection function module |
| CN109188242B (en) * | 2018-08-29 | 2021-08-31 | 郑州云海信息技术有限公司 | Time sequence testing method and device and VR chip |
| CN109188242A (en) * | 2018-08-29 | 2019-01-11 | 郑州云海信息技术有限公司 | A kind of time sequence test method, device and VR chip |
| CN111258403A (en) * | 2020-02-10 | 2020-06-09 | 苏州浪潮智能科技有限公司 | Control device for centralized power supply of server |
| WO2021159651A1 (en) * | 2020-02-10 | 2021-08-19 | 苏州浪潮智能科技有限公司 | Control device for centralized power supply of server |
| CN111258403B (en) * | 2020-02-10 | 2022-02-18 | 苏州浪潮智能科技有限公司 | Control device for centralized power supply of server |
| CN112380074A (en) * | 2020-11-10 | 2021-02-19 | 中科可控信息产业有限公司 | Connector processing method and device, processing module and electronic equipment |
| CN112380074B (en) * | 2020-11-10 | 2024-05-28 | 中科可控信息产业有限公司 | Connector processing method and device, processing module and electronic equipment |
| CN113448905A (en) * | 2021-06-13 | 2021-09-28 | 苏州浪潮智能科技有限公司 | Equipment hot adding method, system, equipment and medium |
| CN113448905B (en) * | 2021-06-13 | 2023-01-06 | 苏州浪潮智能科技有限公司 | Equipment hot adding method, system, equipment and medium |
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Application publication date: 20150304 |