CN109193575A - A kind of optical module power supply protection device - Google Patents
A kind of optical module power supply protection device Download PDFInfo
- Publication number
- CN109193575A CN109193575A CN201811295230.XA CN201811295230A CN109193575A CN 109193575 A CN109193575 A CN 109193575A CN 201811295230 A CN201811295230 A CN 201811295230A CN 109193575 A CN109193575 A CN 109193575A
- Authority
- CN
- China
- Prior art keywords
- pin
- optical module
- management controller
- baseboard management
- protection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/20—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment
Abstract
A kind of optical module power supply protection device, including over-current protection device, over-current protection device input pin are connected to voltage regulator output pin, and over-current protection device output pin is connected to optical module input pin；Baseboard management controller; the enable pin and failure pin of baseboard management controller are connected respectively to over-current protection device enable pin and failure pin, and I2C bus, LPMOD pin and the pin in place of baseboard management controller are connected respectively to I2C bus, LPMOD pin and the pin in place of optical module；Switch chip, the input pin of switch chip are connected to the GPIO port of baseboard management controller, and the base pin selection of switch chip is connected respectively to the resistance of different resistance values, and the COM pin of switch chip is connected to the ILIM pin of over-current protection device.Device through the invention can either support the optical module of different power consumption simultaneously, and can provide timely and effectively overcurrent protection, increase the safety and reliability of optical module power supply circuit.
Description
Technical field
This field is related to computer field, also, relates more specifically to a kind of optical module power supply protection device.
Background technique
The various network datas of modern society are in explosive increase, therefore the requirement for server data transport speed is also got over
Come higher.Optical module is fast as a kind of transmission speed, and the high transmission mode of stability has obtained widely answering in the server
With.Optical module used in server is by initial QSFP (four-way SFP interface) (1Gb/s) at present, step up for
QSFP+ (10Gb/s), and the faster QSFP28 of speed (28Gb/s) recently.Along with the promotion of optical module speed, power supply
Mode also becomes more sophisticated, and QSFP28 optical module type is more, supports different function, power supply power consumption that can be divided into 7 respectively
Grade.
Power supply for QSFP28 module, existing method are increased between QSFP28 module and voltage regulator (VR)
Fuse protects circuit, and the blowout current of fuse is configured again according to the corresponding maximum current 1.5 of Power Level 7, and will
The LPMODE pin of QSFP28 module directly drags down, and disables low-power consumption function, makes QSFP28 optical module in initialization after the completion of institute
Functional normal operation, the power supply circuit can support the QSFP28 module of 1-7 different power consumption grade simultaneously, and have certain protect
Shield effect.But there are some problems for this method, i.e., when lower than the QSFP28 module of grade 7 short trouble occurs for power consumption, electricity
Stream not necessarily reaches blown fuse threshold value, and fuse can not play the role of protection, therefore the power supply protection circuit at this time
There are great risks.Fig. 1 is existing scheme power supply circuit.
Summary of the invention
In view of this, the purpose of the embodiment of the present invention is to propose a kind of optical module power supply protection device, through the invention
Device, can either support the optical module of different power consumption simultaneously, and timely and effectively overcurrent protection can be provided, increase optical module
The safety and reliability of power supply circuit.
Based on above-mentioned purpose, the one aspect of the embodiment of the present invention provides a kind of optical module power supply protection device, packet
It includes:
Over-current protection device, over-current protection device input pin are connected to voltage regulator output pin, overcurrent protector
Part output pin is connected to optical module input pin；
Baseboard management controller, the enable pin and failure pin of baseboard management controller are connected respectively to overcurrent protector
Part enable pin and failure pin, I2C bus, LPMOD pin and the pin in place of baseboard management controller are connected respectively to light
I2C bus, LPMOD pin and the pin in place of module；
The input pin of switch chip, switch chip is connected to the GPIO port of baseboard management controller, switch chip
Base pin selection is connected respectively to the resistance of different resistance values, and the COM pin of switch chip is connected to the ILIM pipe of over-current protection device
Foot, to combine the resistance that the ILIM pin of over-current protection device is connected to different resistance values according to the varying level of GPIO port.
According to one embodiment of present invention, optical module is QSFP28 optical module.
According to one embodiment of present invention, switch chip is that CD4051 switches chip.
According to one embodiment of present invention, baseboard management controller includes three GPIO ports, baseboard management controller
Three GPIO ports be connected respectively to three input ports of switch chip.
According to one embodiment of present invention, switch chip includes at least 7 base pin selections, and 7 base pin selections connect respectively
It is connected to 7 resistance R1-R7.
According to one embodiment of present invention, the resistance value of resistance R1-R7 corresponds respectively to the 1-7 grade of QSFP28 optical module
The current-limiting resistance value of power consumption.
According to one embodiment of present invention, the resistance value of 7 resistance R1-R7 is respectively as follows: R1=150K Ω, R2=115K
Ω, R3=105K Ω, R4=71.5K Ω, R5=56K Ω, R6=52.3K Ω, R7=51K Ω.
According to one embodiment of present invention, the level input combination of three GPIO ports of baseboard management controller is with warp
The power consumption energy level of the optical module determined by the I2C bus of optical module changes.
According to one embodiment of present invention, combination is inputted according to the level of the three of baseboard management controller GPIO ports
One in 7 resistance is only connected.
The other side of the embodiment of the present invention additionally provides a kind of optical module, which includes above-mentioned apparatus.
The present invention has following advantageous effects: optical module power supply protection device provided in an embodiment of the present invention passes through
Increase over-current protection device, over-current protection device input pin is connected to voltage regulator output pin, and over-current protection device is defeated
Pin is connected to optical module input pin out；Baseboard management controller, the enable pin and failure pin of baseboard management controller
Be connected respectively to over-current protection device enable pin and failure pin, the I2C bus of baseboard management controller, LPMOD pin and
Pin in place is connected respectively to I2C bus, LPMOD pin and the pin in place of optical module；Switch chip, the input of switch chip
Pin is connected to the GPIO port of baseboard management controller, and the base pin selection of switch chip is connected respectively to the electricity of different resistance values
Resistance, the COM pin of switch chip are connected to the ILIM pin of over-current protection device, to be combined according to the varying level of GPIO port
The ILIM pin of over-current protection device is connected to the technical solution of the resistance of different resistance values, can either support different power consumption simultaneously
Optical module, and timely and effectively overcurrent protection can be provided, increase the safety and reliability of optical module power supply circuit.
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 embodiments are obtained according to these attached drawings.
Fig. 1 is the optical module power supply circuit of the prior art；
Fig. 2 is the schematic diagram according to the optical module power supply protection device of one embodiment of the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
The embodiment of the present invention is further described in attached drawing.
It should be noted that all statements for using " first " and " second " are for differentiation two in the embodiment of the present invention
The non-equal entity of a same names or non-equal parameter, it is seen that " first " " second " only for the convenience of statement, does not answer
It is interpreted as the restriction to the embodiment of the present invention, subsequent embodiment no longer illustrates this one by one.
Based on above-mentioned purpose, the first aspect of the embodiment of the present invention proposes a kind of optical module power supply protection device
One embodiment.Fig. 2 shows be the device schematic diagram.
As shown in Figure 2, which includes:
Over-current protection device (such as TPS2556), over-current protection device input pin are connected to voltage regulator efferent duct
Foot, over-current protection device output pin are connected to optical module input pin；
Baseboard management controller (BMC), the enable pin and failure pin of baseboard management controller are connected respectively to overcurrent
Protection device enable pin and failure pin, I2C bus, LPMOD pin and the pin in place of baseboard management controller connect respectively
It is connected to I2C bus, LPMOD pin and the pin in place of optical module；
(switch) chip is switched, the input pin of switch chip is connected to the GPIO port of baseboard management controller, opens
The base pin selection for closing chip is connected respectively to the resistance of different resistance values, and the COM pin of switch chip is connected to over-current protection device
ILIM pin, with according to the varying level of GPIO port combination the ILIM pin of over-current protection device is connected to different resistance values
Resistance.
By above technical scheme, the optical module of different power consumption can either be supported simultaneously, and timely and effectively mistake can be provided
Stream protection, increases the safety and reliability of optical module power supply circuit.
In a preferred embodiment of the invention, optical module is QSFP28 optical module.
In a preferred embodiment of the invention, switch chip is that CD4051 switches chip.
In a preferred embodiment of the invention, baseboard management controller includes three GPIO ports, substrate management control
Three GPIO ports of device processed are connected respectively to three input ports of switch chip.
In a preferred embodiment of the invention, switch chip includes at least 7 base pin selections, 7 base pin selections point
It is not connected to 7 resistance R1-R7.
In a preferred embodiment of the invention, the resistance value of resistance R1-R7 corresponds respectively to QSFP28 optical module
The current-limiting resistance value of 1-7 grades of power consumptions.
In a preferred embodiment of the invention, the resistance value of 7 resistance R1-R7 is respectively as follows: R1=150K Ω, R2=
115K Ω, R3=105K Ω, R4=71.5K Ω, R5=56K Ω, R6=52.3K Ω, R7=51K Ω.
In a preferred embodiment of the invention, the level of three GPIO ports of baseboard management controller inputs combination
Change with the power consumption energy level of the determining optical module of the I2C bus via optical module.
In a preferred embodiment of the invention, it is inputted according to the level of the three of baseboard management controller GPIO ports
Combination is only connected one in 7 resistance.
In order to support the QSFP28 optical module of different power consumption simultaneously, and timely and effectively overcurrent protection can be provided,
The QSFP28 optical module power supply protection device of one embodiment of the present of invention, as shown in Figure 2.Among VR and QSFP28 optical module
Increase the over-current protection device (TPS2556) of current adjustment section, management module (BMC) and for TPS2556 protection electricity to be arranged
The switch chip CD4051 of stream.The protective current of TPS2556 is configured by the pull down resistor value of ILIM pin, this hair
The QSFP28 optical module of 1-7 level of power consumption (as shown in table 2), ILIM pin is supported to reserve 7 different resistances in bright simultaneously
The pull down resistor (R1-R7) of value.CD4051 switching chip selects 1 switching chip for 8, and wherein COM is the external TPS2556 of common pin
ILIM pin, input pin A, B, C be gating signal, controlled by BMC chip GPIO [2:0] signal, according to substrate pipe
One in level input combination 7 resistance of conducting of three GPIO ports of controller is managed, i.e., is combined by varying level
To open corresponding channel to connect the resistance of different resistance values, as shown in table 2.
The setting of table 2TPS2556 current-limiting resistance
| Level of power consumption | Maximum power | Maximum current | Maximum limitation electric current | Current-limiting resistance value | Current-limiting resistance |
| 1 | 1.5W | 0.46A | 0.69A | 150K | R1 |
| 2 | 2.0W | 0.61A | 0.92A | 115K | R2 |
| 3 | 2.5W | 0.76A | 1.14A | 105K | R3 |
| 4 | 3.5W | 1.07A | 1.61A | 71.5K | R4 |
| 5 | 4.0W | 1.22A | 1.83A | 56K | R5 |
| 6 | 4.5W | 1.37A | 2.06A | 52.3K | R6 |
| 7 | 5.0W | 1.52A | 2.28A | 51K | R7 |
Letter is carried out to the protection process of the power supply protection device of the QSFP28 optical module of one embodiment of the present of invention below
It describes:
Prsnt signal is the signal in place of QSFP28 optical module, and after optical module is in place, which sets 0 and pass through optical mode
The Prsnt pin of block sends the Prsnt pin of BMC to, indicates that QSFP28 optical module is in place；
After BMC receives the signal in place of QSFP28 optical module, GPIO [2:0]=000 is set by GPIO0-2 pin, is made
CD4051 switching chip is switched to be connect with resistance R1, that is to say, that the ILIM pin of TPS2556 is connected to resistance R1 and pulls down to
Ground, to set level of power consumption 1 for protective current；
BMC enable pin enables TPS2556, and VR is made to power by TPS2556 QSFP28 optical module, and carries out it just
Beginningization；
BMC is by I2C bus access QSFP28 optical mode block register, to determine the level of power consumption of QSFP28 optical module；
If it is determined that the level of power consumption of QSFP28 optical module be 1, then BMC by GPIO0-2 pin be set as GPIO [2:0]=
000 is constant, and sets high level for LPMODE pin, makes its work in low power consumpting state；If it is determined that QSFP28 optical module
Level of power consumption be greater than 1, then BMC is by control GPIO [2:0] signal by the ILIM pin pull down resistor of TPS2556 (in R2-R6
One) be set as corresponding level of power consumption, while setting low level for LPMODE pin, exit QSFP28 optical module low
Power consumption state, the functional normal operation of institute；
When power supply over current fault occurs for QSFP28 optical module, TPS2556 will export current limit in protective current value, and
Supply access is cut off within a certain period of time, while triggering warning information and drags down FAULT signal and being sent to BMC, indicates that electricity occurs
Source failure is so that staff is safeguarded in time.
Based on above-mentioned purpose, the second aspect of the embodiment of the present invention additionally provides a kind of optical module, the optical module packet
Include above-mentioned apparatus.
It is important to note that the embodiment of above system uses the embodiment of the above method to illustrate each mould
The course of work of block, those skilled in the art can be it is readily conceivable that other by these module applications to the above method be implemented
In example.
Those skilled in the art will also understand is that, various illustrative logical blocks, mould in conjunction with described in disclosure herein
Block, circuit and algorithm steps may be implemented as the combination of electronic hardware, computer software or both.It is hard in order to clearly demonstrate
This interchangeability of part and software, with regard to various exemplary components, square, module, circuit and step function to its into
General description is gone.This function is implemented as software and is also implemented as hardware depending on concrete application and application
To the design constraint of whole system.The function that those skilled in the art can realize in various ways for every kind of concrete application
Can, but this realization decision should not be interpreted as causing a departure from range disclosed by the embodiments of the present invention.
It is exemplary embodiment disclosed by the invention above, it should be noted that in the sheet limited without departing substantially from claim
Under the premise of inventive embodiments scope of disclosure, it may be many modifications and modify.According to open embodiment described herein
The function of claim to a method, step and/or movement be not required to the execution of any particular order.In addition, although the present invention is implemented
Element disclosed in example can be described or be required in the form of individual, but be unless explicitly limited odd number, it is understood that be multiple.
Above-described embodiment, especially any " preferably " embodiment are the possibility examples realized, and only for clear geography
It solves the principle of the present invention and proposes.It can be in the case where not departing from the spirit and principle of techniques described herein to above-mentioned reality
It applies example and carries out many change and modification.All modifications are intended to be included in the scope of the present disclosure and are protected by appended claims
Shield.
Claims (10)
1. a kind of optical module power supply protection device characterized by comprising
Over-current protection device, the over-current protection device input pin are connected to voltage regulator output pin, and the overcurrent is protected
Shield device output pin is connected to the optical module input pin；
Baseboard management controller, the enable pin and failure pin of the baseboard management controller are connected respectively to the overcurrent and protect
Protect device enable pin and failure pin, I2C bus, LPMOD pin and the pin in place difference of the baseboard management controller
It is connected to I2C bus, LPMOD pin and the pin in place of the optical module；
Switch chip, the input pin of the switch chip is connected to the GPIO port of the baseboard management controller, described to open
The base pin selection for closing chip is connected respectively to the resistance of different resistance values, and the COM pin of the switch chip is connected to the overcurrent
The ILIM pin of device is protected, to manage the ILIM of the over-current protection device according to the combination of the varying level of the GPIO port
Foot is connected to the resistance of different resistance values.
2. the apparatus according to claim 1, which is characterized in that the optical module is QSFP28 optical module.
3. the apparatus of claim 2, which is characterized in that the switch chip is that CD4051 switches chip.
4. device according to claim 3, which is characterized in that the baseboard management controller includes three GPIO ports,
Three GPIO ports of the baseboard management controller are connected respectively to three input ports of the switch chip.
5. device according to claim 4, which is characterized in that the switch chip includes at least 7 base pin selections, described
7 base pin selections are connected respectively to 7 resistance R1-R7.
6. device according to claim 5, which is characterized in that the resistance value of the resistance R1-R7 corresponds respectively to described
The current-limiting resistance value of the 1-7 grade power consumption of QSFP28 optical module.
7. device according to claim 6, which is characterized in that the resistance value of 7 resistance R1-R7 is respectively as follows: R1=
150K Ω, R2=115K Ω, R3=105K Ω, R4=71.5K Ω, R5=56K Ω, R6=52.3K Ω, R7=51K Ω.
8. device according to claim 7, which is characterized in that three GPIO ports of the baseboard management controller
The power consumption energy level of the optical module that is determined with the I2C bus via the optical module of level input combination change.
9. device according to claim 8, which is characterized in that according to three GPIO of the baseboard management controller
The level input combination of port is only connected one in 7 resistance.
10. a kind of optical module, which is characterized in that including device as described in any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811295230.XA CN109193575B (en) | 2018-11-01 | 2018-11-01 | Optical module power supply protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811295230.XA CN109193575B (en) | 2018-11-01 | 2018-11-01 | Optical module power supply protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109193575A true CN109193575A (en) | 2019-01-11 |
| CN109193575B CN109193575B (en) | 2020-03-10 |
Family
ID=64941326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811295230.XA Active CN109193575B (en) | 2018-11-01 | 2018-11-01 | Optical module power supply protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109193575B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109766303A (en) * | 2019-01-15 | 2019-05-17 | 郑州云海信息技术有限公司 | A kind of device and switching method that chip uplink port automatically switches |
| CN114116545A (en) * | 2021-10-15 | 2022-03-01 | 苏州浪潮智能科技有限公司 | Optical module identification regulation structure, method and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095997A (en) * | 2010-12-10 | 2011-06-15 | 成都优博创技术有限公司 | Automatic detecting device and method for short-circuit exception of interior circuit and shell of optical module |
| CN205071002U (en) * | 2015-09-02 | 2016-03-02 | 深圳市丰润达科技有限公司 | Light module power supply circuit and communications facilities |
| CN206099294U (en) * | 2016-07-14 | 2017-04-12 | 杭州华三通信技术有限公司 | Optical module power supply protection circuit and communication equipment |
| CN107272858A (en) * | 2017-05-26 | 2017-10-20 | 郑州云海信息技术有限公司 | A kind of server adaptive overcurrent protection circuit and adaptive approach |
-
2018
- 2018-11-01 CN CN201811295230.XA patent/CN109193575B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095997A (en) * | 2010-12-10 | 2011-06-15 | 成都优博创技术有限公司 | Automatic detecting device and method for short-circuit exception of interior circuit and shell of optical module |
| CN205071002U (en) * | 2015-09-02 | 2016-03-02 | 深圳市丰润达科技有限公司 | Light module power supply circuit and communications facilities |
| CN206099294U (en) * | 2016-07-14 | 2017-04-12 | 杭州华三通信技术有限公司 | Optical module power supply protection circuit and communication equipment |
| CN107272858A (en) * | 2017-05-26 | 2017-10-20 | 郑州云海信息技术有限公司 | A kind of server adaptive overcurrent protection circuit and adaptive approach |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109766303A (en) * | 2019-01-15 | 2019-05-17 | 郑州云海信息技术有限公司 | A kind of device and switching method that chip uplink port automatically switches |
| CN114116545A (en) * | 2021-10-15 | 2022-03-01 | 苏州浪潮智能科技有限公司 | Optical module identification regulation structure, method and storage medium |
| CN114116545B (en) * | 2021-10-15 | 2023-07-18 | 苏州浪潮智能科技有限公司 | Optical module identification regulation structure, method and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109193575B (en) | 2020-03-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2011357758B2 (en) | High current Multi-Port USB hub | |
| US7877622B2 (en) | Selecting between high availability redundant power supply modes for powering a computer system | |
| CN104181870B (en) | Control method and device | |
| US10559953B2 (en) | Redundant and fault-tolerant power distribution system having an integrated communication network | |
| CN102751714B (en) | Overvoltage protection circuit and current sampling device | |
| CN104242274B (en) | Quantity of state differential protecting method containing distributed power distribution network | |
| CN103684845B (en) | Network stand-by provision and the network system for having the network stand-by provision | |
| CN109193575A (en) | A kind of optical module power supply protection device | |
| CN106302063A (en) | CAN communication line Circuits System and terminal resistance connection control method thereof | |
| CN104133799A (en) | Multi-network-card NCSI management system | |
| CN106081046B (en) | A kind of double remaining aerostatics measure and control devices | |
| CN103683178B (en) | Data center equipment and over-current and under-voltage protection circuit thereof | |
| CN104834246B (en) | Automobile controller and the state synchronization method applied to automobile controller | |
| CN107959806A (en) | A kind of binodal point server KVM switches circuit | |
| CN207869116U (en) | A kind of handover control system of master/slave device | |
| CN102301304B (en) | Power conversion, control, and distribution system | |
| CN204009884U (en) | A kind of many network interface cards NCSI management system | |
| CN108256359B (en) | Power supply protection system and protection method for storage hard disk | |
| CN103491459A (en) | Electronic distributing frame system | |
| CN107291206A (en) | A kind of interconnection architecture of mainboard and BBU | |
| CN108173786A (en) | Management monitoring system and method | |
| CN102361450A (en) | Programmable logic device | |
| CN206894659U (en) | A kind of reverse power supply device | |
| CN103425544A (en) | Method for solving fan electrification maintenance | |
| CN105162731B (en) | Ethernet switch energy-saving structure based on light LOSS signals and power-economizing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |