CN110187737A - Electric time sequence control device under a kind of board - Google Patents
Electric time sequence control device under a kind of board Download PDFInfo
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- CN110187737A CN110187737A CN201910401285.2A CN201910401285A CN110187737A CN 110187737 A CN110187737 A CN 110187737A CN 201910401285 A CN201910401285 A CN 201910401285A CN 110187737 A CN110187737 A CN 110187737A
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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
- G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
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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
Abstract
The application provides electric time sequence control device under a kind of board, described device includes power module and power detection module, CPLD module, multiple power supply chip modules, the CPLD module is attached with the power detection module, the multiple power supply chip module respectively, and the power module is respectively used to as the CPLD module, the multiple power supply chip module for power supply；Power detection module is for detecting whether power module voltage drops to predeterminated voltage threshold value, if power module Voltage Drop sends power module electric voltage exception signal to CPLD module to predeterminated voltage threshold value；CPLD module is used to receive the power module electric voltage exception signal that power detection module is sent, and in the case where receiving the power module electric voltage exception signal of power detection module transmission, is instructed according to the lower electricity being locally stored, sequentially lower to each power supply chip module electric.
Description
Technical field
This application involves time sequence control devices electric under field of communication technology more particularly to a kind of board.
Background technique
In the board that current basis is designed containing large scale integrated circuits such as CPU, if typically containing supply core
Piece.Not only there is strict demand to parameters such as the voltages of power supply chip in board, but also to upper and lower between each power supply chip
Electric timing often also has strict demand, i.e., must comply with specific sequence between each power supply chip and carry out electric control up and down.
When need to board is debugged in the network equipment when, the problem of inevitably encountering hot plug.Work as board
When being inserted into some slot position of the network equipment, on board between each power supply chip power up be it is controllable, existing heat can be passed through
Plugging technique is coped with；But when board is extracted from some slot position of the network equipment, on board between each power supply chip under
Electric process is uncontrollable.
For this purpose, increasing timing controller newly on board, the power-on and power-off timing of each power supply chip is by timing control on board
Coremaking piece is provided enable signal and is controlled, specifically: the power-on and power-off instruction that master control board card issues is received, is referred to according to the power-on and power-off
Order sequentially executes power-on and power-off to power supply chip each on board.However often occurs following two situation in practical applications: 1,
Board hot plug；2, external power supply power supply is closed.In above-mentioned two situations, timing controller can not work normally, no
It is able to achieve and sequentially executes lower electricity to each power supply chip, increase the risk of device failure on board.
Summary of the invention
In view of this, the application provides electric time sequence control device under a kind of board.
Specifically, the application is achieved by the following technical solution:
Electric time sequence control device under a kind of board, which is characterized in that described device includes power module and power detecting
Module, CPLD module, multiple power supply chip modules, the CPLD module respectively with the power detection module, the multiple electricity
Source chip module is attached, and the power module is respectively used to supply for the CPLD module, the multiple power supply chip module
Electricity；
Power detection module is for detecting whether power module voltage drops to predeterminated voltage threshold value, if power module is electric
Pressure drops to predeterminated voltage threshold value, sends power module electric voltage exception signal to CPLD module；
CPLD module is used to receive the power module electric voltage exception signal of power detection module transmission, is receiving power supply inspection
In the case where surveying the power module electric voltage exception signal that module is sent, instructed according to the lower electricity being locally stored, to each power supply core
Piece module is sequentially lower electric.
Further, the power module specifically: board input power submodule and board local power supply submodule,
It is connected between the board local power supply submodule and the board input power submodule by hot-swapping controller, the plate
Card local power supply submodule voltage converts the board input power submodule voltage via hot-swapping controller；The electricity
Source detection module specifically: board input power detection sub-module, board local power supply detection sub-module.
Further, the power module is respectively used to as the CPLD module, the multiple power supply chip module for power supply
Specifically:
Board local power supply submodule is respectively used to as the CPLD module, the multiple power supply chip module for power supply.
Further, the board local power supply submodule is used to be the CPLD module for power supply specifically:
Board local power supply submodule is used to be LDO module for power supply, and the LDO module is used to supply for the CPLD module
Electricity, wherein the LDO module is connect with the board local power supply submodule, the CPLD module respectively.
Further, the power detection module is for detecting whether power module voltage drops to predeterminated voltage thresholding
Value, if it is specific to send power module electric voltage exception signal to CPLD module to predeterminated voltage threshold value for power module Voltage Drop
Are as follows:
Board input power detection sub-module is for detecting whether board input power submodule voltage drops to default electricity
Pressure gate limit value, if board input power submodule Voltage Drop sends power module to CPLD module to predeterminated voltage threshold value
Electric voltage exception signal；
Board local power supply detection sub-module is for detecting whether board local power supply submodule voltage drops to default electricity
Pressure gate limit value, if board local power supply submodule Voltage Drop sends power module to CPLD module to predeterminated voltage threshold value
Electric voltage exception signal.
Further, the CPLD module is used to receive the power module electric voltage exception signal of power detection module transmission,
In the case where receiving the power module electric voltage exception signal of power detection module transmission, referred to according to the lower electricity being locally stored
It enables, it is sequentially lower to each power supply chip module electric specifically:
The CPLD module is used to receive the power module electric voltage exception signal of board input power detection sub-module transmission,
In the case where receiving the power module electric voltage exception signal of board input power detection sub-module transmission, according to being locally stored
Lower electricity instruction, to each power supply chip module sequentially lower electricity；
Or
The CPLD module is used to receive the power module electric voltage exception signal of board local power supply detection sub-module transmission,
In the case where receiving the power module electric voltage exception signal of board local power supply detection sub-module transmission, according to being locally stored
Lower electricity instruction, to each power supply chip module sequentially lower electricity.
Further, described device further include:
Board signal detection module in place, the board signal detection module in place in the form of hour hand and back panel connector into
Row connection；
The board signal detection module in place is stuck in whether signal changes for detection plate, if board is believed in place
It number changes, notice CPLD module board is stuck in a signal and changes；
CPLD module is instructed according to the lower electricity being locally stored, sequentially lower to each power supply chip module electric.
Further, the lower electricity instruction is the lower electricity instruction that master control board card issues.
Electric time sequence control device under board provided by the embodiments of the present application, by CLPD control each power supply chip module according to
It is electric under sequence, board can be made in the case where hot plug or external power supply power supply are closed, be still able to maintain to each power supply chip according to
Sequence executes lower electricity, reduces the risk of device failure on board.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to required attached in embodiment description
Figure is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments as described in this application, for
For those of ordinary skill in the art, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of board internal hardware connection schematic diagram shown in one exemplary embodiment of the application；
Fig. 2 is another board internal hardware connection schematic diagram shown in one exemplary embodiment of the application；
Fig. 3 is another board internal hardware connection schematic diagram shown in one exemplary embodiment of the application.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the application.
It is only to be not intended to be limiting the application merely for for the purpose of describing particular embodiments in term used in this application.
It is also intended in the application and the "an" of singular used in the attached claims, " described " and "the" including majority
Form, unless the context clearly indicates other meaning.It is also understood that term "and/or" used herein refers to and wraps
It may be combined containing one or more associated any or all of project listed.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the application
A little information should not necessarily be limited by these terms.These terms are only used to for same type of information being distinguished from each other out.For example, not departing from
In the case where the application range, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determination ".
It is as shown in Figure 1 existing board internal hardware structural schematic diagram, board is powered by external power supply (such as 12V-IN),
By hot-swapping controller (such as hot-swapping controller LTC4215), external power supply (such as 12V-IN) is converted into board
Internal main power source (such as 12V-Main).Main power source 12V-Main is used to power for each power supply chip and timing controller,
The power-on and power-off timing of each power supply chip is provided enable signal (Enable) by timing controller and is controlled on board, specifically
Are as follows: the power-on and power-off instruction that master control board card issues is received, power supply chip each on board is sequentially executed according to power-on and power-off instruction
Power-on and power-off can be considered as a kind of form of software control power supply chip power-on and power-off.
Master control board card issues power-on and power-off instruction, by the sequentially power-on and power-off of each power supply chip of software control.However it is actually answering
With in the process, frequently encountering following two situation: 1, board hot plug；2, external power supply power supply is closed.In above-mentioned two situations
Under, timing controller can not work normally, and can not achieve and sequentially executes lower electricity to each power supply chip, increases on board
The risk of device failure.
In view of above-mentioned technical problem, the embodiment of the present application measures the storage capacitor on board, all exists on general board big
The storage capacitor of amount, in the case where board hot plug or external power supply power supply are closed, due to the storage of storage capacitor on board
Energy effect, main power voltage (such as 12V-Main) can not drop to 0V moment, but follow voltage falloff curve and slowly drop
To 0V.The time of this process experience about between a few tens of milliseconds, thus provides main power voltage (such as 12V-Main)
A possibility that each power supply chip is sequentially lower electric is controlled before droping to 0V.
Based on this, the embodiment of the present application provides electric time sequence control device under a kind of board, is illustrated in figure 2 the application implementation
Example board internal hardware structural schematic diagram, including it is power module 210 and power detection module 220, CPLD module 230, multiple
Power supply chip module (240A, 240B ...).
In the embodiment of the present application, using CPLD, (Complex Programmable Logic Device, complexity can be compiled
Journey logical device) the existing timing controller of replacement, the CPLD of LCMXO2 series can be used for example, the spy of series CPLD
Point is that normal working voltage is very low, only 1.2V.
Power module 210 is respectively used to as CPLD module 230, multiple power supply chip module for power supply, the difference of CPLD module 230
It is attached with power detection module 220, multiple power supply chip modules.Such as CPLD module 230 and the multiple power supply chip
It is attached between module by Enable signal wire.
Power detection module 220 is for detecting whether 210 voltage of power module drops to predeterminated voltage threshold value, if power supply
210 Voltage Drop of module sends 210 electric voltage exception signal of power module to CPLD module 230 to predeterminated voltage threshold value.Such as
210 normal voltage of power module is 12V, and predeterminated voltage threshold value can be 10V in actual application, works as power module
210 voltage 12V drop to predeterminated voltage threshold value 10V, send 210 electric voltage exception signal of power module to CPLD module 230.
The 210 electric voltage exception signal of power module that CPLD module 230 is sent for receiving power detection module 220, and
In the case where the 210 electric voltage exception signal of power module for receiving the transmission of power detection module 220, according to the lower electricity being locally stored
Instruction, it is sequentially lower to each power supply chip module electric.
As shown in figure 3, being another board internal hardware structural schematic diagram of the embodiment of the present application, power module 210 includes plate
Card input power submodule 210A (such as 12V-IN) and board local power supply submodule 210B (such as 12V-Main), it is described
It is (such as hot by hot-swapping controller between board local power supply submodule 210B and the board input power submodule 210A
Swap controller LTC4215) connection, described in the board local power supply submodule 210B voltage is converted via hot-swapping controller
Board input power submodule 210A voltage.Then above-mentioned power module 210 is respectively used to as the CPLD module 230, institute
State multiple power supply chip module for power supply, specifically board local power supply submodule 210B be respectively used to for the CPLD module 230,
The multiple power supply chip module for power supply.
Wherein, in order to preferably extend working time of CPLD module 230, can further draw in the embodiment of the present application
Entering LDO, (Low-dropout regulator, also known as low pressure difference linear voltage regulator, low dropout voltage regulator are linear DC pressure stabilizings
One kind of device, purposes are to provide steady dc voltage.Compared to general linear direct current stabilizer, low-dropout regulator can be in more
Work in the case where small input and output voltage difference) chip, power supply of the LDO chip as CPLD is selected, then above-mentioned board sheet
Ground power supply submodule 210B is used to power for the CPLD module 230, specifically: board local power supply submodule 210B is for being
LDO module 250 is powered, and the LDO module 250 is used to power for the CPLD module 230, wherein the LDO module 250 is distinguished
It is connect with the board local power supply submodule 210B, the CPLD module 230, the LDO module 250 is used as the board sheet
Connection medium between ground power supply submodule 210B and the CPLD module 230.
Here simple to introduce lower the reason of introducing LDO chip: LDO chip as a kind of decompression linear stabilized power supply, as long as
Input voltage 0.2V higher than output voltage or so can work.Therefore in board local power supply submodule 210B (such as 12V-
Main) during Voltage Drop to 0V, as long as board local power supply submodule 210B voltage is greater than 1.4V, CPLD can be normal
Work.This just greatly extends the working time of CPLD, so that the feelings that CPLD is closed in board hot plug or external power supply
It is capable of the lower electricity sequence of each power supply chip of normal control under condition.In addition another feature of LDO chip is become in input voltage
Energy basic guarantee output voltage stabilization is constant when change, provides guarantee for the CPLD work for capableing of normal table.At work
CPLD only makees the use of power supply timing control, and electric current is tens milliamperes of ranks, therefore the power consumption of LDO itself consumption is only several hundred millis
Watt, it not will cause big power consumption penalty.
It include board input power submodule 210A (such as 12V-IN) and the local electricity of board in above-mentioned power module 210
Source submodule 210B (such as 12V-Main), similarly power detection module 220 include board input power detection sub-module 220A,
Board local power supply detection sub-module 220B.The corresponding CPLD module 230 is connected with the power detection module 220
It connects, is specifically attached respectively with board input power detection sub-module 220A, board local power supply detection sub-module 220B.
Power detection module 220 is for detecting whether 210 voltage of power module drops to predeterminated voltage threshold value, if power supply
210 Voltage Drop of module sends 210 electric voltage exception signal of power module to CPLD module 230, specifically to predeterminated voltage threshold value
Be: board input power detection sub-module 220A (such as 12V-IN-Check) is for detecting board input power submodule 210A
Whether voltage (such as 12V-IN), which drops to predeterminated voltage threshold value, (such as in actual use can be set as voltage threshold
10V), if board input power submodule 210A Voltage Drop sends power supply mould to CPLD module 230 to predeterminated voltage threshold value
210 electric voltage exception signal of block；Board local power supply detection sub-module 220B (such as 12V-Main-Check) is for detecting board
Whether local power supply submodule 210B voltage (such as 12V-Main) drops to predeterminated voltage threshold value, if board local power supply
Module 210B Voltage Drop sends 210 electric voltage exception signal of power module to CPLD module 230 to predeterminated voltage threshold value.
CPLD module 230 is used to receive the 210 electric voltage exception signal of power module of the transmission of power detection module 220, is connecing
In the case where the 210 electric voltage exception signal of power module for receiving the transmission of power detection module 220, referred to according to the lower electricity being locally stored
It enables, it is sequentially lower to each power supply chip module electric, specifically:
The CPLD module 230 is for receiving board input power detection sub-module 220A (such as 12V-IN-Check) hair
The 210 electric voltage exception signal of power module sent, in the power module for receiving board input power detection sub-module 220A transmission
In the case where 210 electric voltage exception signals, instructed according to the lower electricity being locally stored, it is sequentially lower to each power supply chip module electric；
Or
The CPLD module 230 is for receiving board local power supply detection sub-module 220B (such as 12V-Main-Check)
The 210 electric voltage exception signal of power module of transmission, in the power supply mould for receiving board local power supply detection sub-module 220B transmission
In the case where 210 electric voltage exception signal of block, instructed according to the lower electricity being locally stored, it is sequentially lower to each power supply chip module electric.
On the basis of above-mentioned apparatus, electric time sequence control device can also include: board under the embodiment of the present application board
Signal detection module 260 in place, the board signal detection module 260 in place are connected in the form of hour hand with back panel connector
It connects.The board signal detection module 260 in place is stuck in whether signal changes for detection plate, wherein if board quilt
Electrification is extracted, and hour hand is detached from back panel connector at first, board signal in place is caused to change；If board signal in place changes
Become, notice 230 board of CPLD module signal in place changes；CPLD module 230 is instructed according to the lower electricity being locally stored, to each
A power supply chip module is sequentially lower electric.
In the embodiment of the present application, under normal circumstances still using each power supply chip of software control in the prior art sequentially
Power-on and power-off, the lower electricity instruction that lower electricity instruction described above can issue for master control board card.
Electric time sequence control device under board provided by the embodiments of the present application, by CLPD control each power supply chip module according to
It is electric under sequence, board can be made in the case where hot plug or external power supply power supply are closed, be still able to maintain to each power supply chip according to
Sequence executes lower electricity, reduces the risk of device failure on board.
The foregoing is merely the preferred embodiments of the application, not to limit the application, all essences in the application
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the application protection.
Claims (8)
1. electric time sequence control device under a kind of board, which is characterized in that described device includes power module and power detecting mould
Block, CPLD module, multiple power supply chip modules, the CPLD module respectively with the power detection module, the multiple power supply
Chip module is attached, and the power module is respectively used to as the CPLD module, the multiple power supply chip module for power supply；
Power detection module is for detecting whether power module voltage drops to predeterminated voltage threshold value, if power module voltage falls
Predeterminated voltage threshold value is dropped down onto, sends power module electric voltage exception signal to CPLD module；
CPLD module is used to receive the power module electric voltage exception signal of power detection module transmission, is receiving power detecting mould
In the case where the power module electric voltage exception signal that block is sent, instructed according to the lower electricity being locally stored, to each power supply chip mould
Block is sequentially lower electric.
2. the apparatus according to claim 1, which is characterized in that the power module include board input power submodule with
And board local power supply submodule, pass through heat between the board local power supply submodule and the board input power submodule
Swap controller connection, the board local power supply submodule voltage convert the board input power via hot-swapping controller
Submodule voltage；
The power detection module includes board input power detection sub-module, board local power supply detection sub-module.
3. the apparatus of claim 2, which is characterized in that the power module be respectively used to for the CPLD module,
The multiple power supply chip module for power supply, comprising:
Board local power supply submodule is respectively used to as the CPLD module, the multiple power supply chip module for power supply.
4. device according to claim 3, which is characterized in that the board local power supply submodule is used to be the CPLD
Module for power supply, comprising:
Board local power supply submodule is used to be LDO module for power supply, and the LDO module is used to be the CPLD module for power supply,
Described in LDO module connect respectively with the board local power supply submodule, the CPLD module.
5. the apparatus of claim 2, which is characterized in that the power detection module is for detecting power module voltage
Whether predeterminated voltage threshold value is dropped to, if power module Voltage Drop sends electricity to CPLD module to predeterminated voltage threshold value
Source module electric voltage exception signal, comprising:
Board input power detection sub-module is for detecting whether board input power submodule voltage drops to predeterminated voltage door
Limit value, if board input power submodule Voltage Drop sends power module voltage to CPLD module to predeterminated voltage threshold value
Abnormal signal；
Board local power supply detection sub-module is for detecting whether board local power supply submodule voltage drops to predeterminated voltage door
Limit value, if board local power supply submodule Voltage Drop sends power module voltage to CPLD module to predeterminated voltage threshold value
Abnormal signal.
6. according to the method described in claim 5, it is characterized in that, the CPLD module is for receiving power detection module transmission
Power module electric voltage exception signal, receive power detection module transmission power module electric voltage exception signal the case where
Under, it is instructed according to the lower electricity being locally stored, it is sequentially lower to each power supply chip module electric, comprising:
The CPLD module is used to receive the power module electric voltage exception signal of board input power detection sub-module transmission, is connecing
In the case where the power module electric voltage exception signal for receiving the transmission of board input power detection sub-module, according to being locally stored down
Electricity instruction, it is sequentially lower to each power supply chip module electric；
Or
The CPLD module is used to receive the power module electric voltage exception signal of board local power supply detection sub-module transmission, is connecing
In the case where the power module electric voltage exception signal for receiving the transmission of board local power supply detection sub-module, according to being locally stored down
Electricity instruction, it is sequentially lower to each power supply chip module electric.
7. device according to any one of claims 1 to 6, which is characterized in that described device further include:
Board signal detection module in place, the board signal detection module in place are connected in the form of hour hand with back panel connector
It connects；
The board signal detection module in place is stuck in whether signal changes for detection plate, if board signal hair in place
Raw to change, notice CPLD module board is stuck in a signal and changes；
CPLD module is instructed according to the lower electricity being locally stored, sequentially lower to each power supply chip module electric.
8. device according to any one of claims 1 to 7, which is characterized in that the lower electricity instruction issues for master control board card
It is lower electricity instruction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910401285.2A CN110187737B (en) | 2019-05-15 | 2019-05-15 | Board card power-off time sequence control device |
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| CN201910401285.2A CN110187737B (en) | 2019-05-15 | 2019-05-15 | Board card power-off time sequence control device |
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| CN111443652A (en) * | 2020-03-24 | 2020-07-24 | 深圳市紫光同创电子有限公司 | Power supply structure of CP L D logic unit array |
| CN112731860A (en) * | 2020-12-11 | 2021-04-30 | 邦彦技术股份有限公司 | VPX blade power-on control method and circuit and VPX blade |
| CN113835510A (en) * | 2021-09-27 | 2021-12-24 | 新华三信息安全技术有限公司 | Power supply control method and system |
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| CN111443652A (en) * | 2020-03-24 | 2020-07-24 | 深圳市紫光同创电子有限公司 | Power supply structure of CP L D logic unit array |
| CN111443652B (en) * | 2020-03-24 | 2021-06-18 | 深圳市紫光同创电子有限公司 | Power supply structure of CPLD (complex programmable logic device) logic unit array |
| CN112731860A (en) * | 2020-12-11 | 2021-04-30 | 邦彦技术股份有限公司 | VPX blade power-on control method and circuit and VPX blade |
| CN113835510A (en) * | 2021-09-27 | 2021-12-24 | 新华三信息安全技术有限公司 | Power supply control method and system |
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| CN110187737B (en) | 2021-07-23 |
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