CN109917893A - A kind of server system overcurrent protective device and its method - Google Patents
A kind of server system overcurrent protective device and its method Download PDFInfo
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Abstract
The invention discloses a kind of server system overcurrent protective devices, comprising: system administration chip, extrapolation card slot, adjustable resistance module, power source protective module and power supply；System administration chip, for reading the characteristic for the outer plug-in card being inserted on extrapolation card slot, according to characteristic and the resistance value of default regulation rule adjustment adjustable resistance module；Power source protective module, for determining the current protection point of outer plug-in card on institute's extrapolation card slot according to the electric parameter between collection terminal in adjustable resistance module；Output electric current according to current protection point control power supply；Overcurrent protection is carried out according to the outer plug-in card on the external card slot of current protection point.A kind of server system overcurrent protective device and its method; make it possible to the outer plug-in card for different performance; different current protection points is set dynamically; so that when each outer plug-in card on external card slot carries out overcurrent protection; specific aim is stronger; the scope of application is wider, can more accurately support the overcurrent protection of all types of outer plug-in cards.
Description
Technical field
The present invention relates to system current protection technology field, more particularly to a kind of server system overcurrent protective device and
Its method.
Background technique
In server design now, server system need support more add-on cards include GPU card/Raid card/MOC card and
Associated communication is with the configuration produced, and server system is set all according to the design scheme of standard PCIe card slot according to its electrical property at present
Meter goes to realize, OCP (over current protect, overcurrent protection) can be also designed for PCIe card slot and is sentenced in the number of inquiring
The functions signal foot position such as message I2C (Inter-Integrated Circuit, IC bus) reading on not/card
Over current protection protection mechanism is designed, can be with when crime prevention system short circuit or the injury of caused when single deck tape-recorder short circuit complete machine, it can
Deactivation, then power supply mould are set to penetrate overload current voltage protection set by the Current Voltage protection chip in system in real time
Block also has equal protection mechanism, is the common design scheme of general server system
Since existing system design specification needs to cooperate a variety of GPU cards/outer plug-in card kenel, and a variety of AI training may be executed
The pumping of model or high voltage and current carries test, therefore the OCP current protection point that system has been set may be because of different systems
It is sent out under outer plug-in card or test software by place.
Current protection point dynamically being adjusted according to outer plug-in card currently without method, therefore the scope of application is small, specific aim is poor,
It can not accurately support the overcurrent protection of all types of outer plug-in cards.
Therefore, how a kind of stronger server system overcurrent protective device of specific aim is provided and its method is this field skill
The current problem to be solved of art personnel.
Summary of the invention
The object of the present invention is to provide a kind of server system overcurrent protective device and its methods, make it possible to as dissimilarity
The outer plug-in card of energy, is set dynamically different current protection points, so that each outer plug-in card on external card slot carries out overcurrent guarantor
When shield, specific aim is stronger, and the scope of application is wider, can more accurately support the overcurrent protection of all types of outer plug-in cards.
In order to solve the above technical problems, the present invention provides a kind of server system overcurrent protective devices, comprising: be
System managing chip, extrapolation card slot, adjustable resistance module, power source protective module and power supply；The system administration chip connects respectively
Connect the control terminal of the extrapolation card slot and the adjustable resistance module；The power source protective module is separately connected the adjustable electric
Hinder collection terminal, the power supply and the extrapolation card slot of module；The power supply connects the extrapolation card slot；The adjustable resistance
The positive terminal of module is connected and fixed positive pole, the negative pole end ground connection of the adjustable resistance module；
The system administration chip, for reading the characteristic for the outer plug-in card being inserted on the extrapolation card slot, according to institute
State the resistance value of adjustable resistance module described in characteristic and default regulation rule adjustment；
The power source protective module, for determining institute according to the electric parameter between collection terminal in the adjustable resistance module
The current protection point of outer plug-in card on extrapolation card slot；The output electric current of the power supply is controlled according to the current protection point；According to institute
It states current protection point and overcurrent protection is carried out to the outer plug-in card on the extrapolation card slot.
Preferably, the adjustable resistance module include an adjustable resistance, the adjustable resistance control terminal connection described in
The output end of system administration chip, the first end of the adjustable resistance connect the fixed power source anode, the adjustable resistance
Second end ground connection, the first end and second end of the adjustable resistance is as the adjustable resistance module collection terminal；The electric parameter
For electric current.
Preferably, the adjustable resistance module includes n adjustable resistance, and n is equal to the card slot sum in the extrapolation card slot；
The system administration chip is separately connected the control terminal of each adjustable resistance, and the first end of each adjustable resistance is separately connected correspondence
Fixed power source anode, each adjustable resistance second end ground connection, the first end and second end of each adjustable resistance
Collection terminal as adjustable resistance described in this connects the power source protective module；The electric parameter is electric current；
Each adjustable resistance is provided with mark corresponding with each card slot in the extrapolation card slot；The system pipes
Manage the mark that the adjustable resistance is pre-saved in chip and the power source protective module and its corresponding outer plug-in card
The mark of card slot in slot；
The system administration chip is specifically used for: reading the feature for each outer plug-in card being inserted on the extrapolation card slot respectively
Data and its locating card slot mark, according to the characteristic and the default regulation read each card slot mark of rule adjustment
Know the resistance value of corresponding adjustable resistance；
The power source protective module is specifically used for: determining according to the electric parameter between the collection terminal of each adjustable resistance
The current protection point of its corresponding card slot；The each output end for controlling the power supply according to the current protection point distinguishes output phase
Answer the electric current of size to corresponding card slot；Overcurrent protection is carried out to it according to each card slot corresponding current protection point.
Preferably, the adjustable resistance module includes an adjustable resistance and a divider resistance, the adjustable resistance
Control terminal connects the output end of the system administration chip, the series circuit after the adjustable resistance and divider resistance series connection
First end connect fixed power source anode, the second end ground connection of the series circuit, the both ends conduct of the adjustable resistance
The collection terminal of the adjustable resistance module；The electric parameter is voltage or electric current.
Preferably, the adjustable resistance module further includes motor；The system administration chip output drive signal is to described
Motor, the driver control the resistance value that the motor adjusts the adjustable resistance according to the driving signal.
In order to solve the above technical problems, the present invention also provides a kind of server system over-current protection method, be based on more than
Described in any item server system overcurrent protective devices, which comprises
System administration chip reads the characteristic for the outer plug-in card being inserted on the extrapolation card slot, according to the characteristic
And the resistance value of default regulation rule adjustment adjustable resistance module；
Power source protective module determines outer on institute's extrapolation card slot according to the electric parameter between the adjustable resistance module collection terminal
The current protection point of plug-in card；
The power source protective module controls the output electric current of the power supply according to the current protection point；
The power source protective module carries out overcurrent guarantor to the outer plug-in card on the extrapolation card slot according to the current protection point
Shield.
Preferably, the adjustable resistance module include an adjustable resistance, the adjustable resistance control terminal connection described in
The output end of system administration chip, the first end of the adjustable resistance connect the fixed power source anode, the adjustable resistance
Second end ground connection, the first end and second end of the adjustable resistance is as the adjustable resistance module collection terminal；The electric parameter
For electric current.
Preferably, when being inserted with multiple outer plug-in cards on the extrapolation card slot, and current protection point is that single card slot is corresponding
Current protection point when, it is described according to the characteristic and the resistance value of adjustable resistance module described in default regulation rule adjustment
Process include:
Determine performance power consumption corresponding to performance is least in power-consuming on the extrapolation card slot outer plug-in card；
Table is corresponded to according to identified performance power consumption and preset power consumption resistance value, determines the corresponding target of performance power consumption
Resistance value adjusts the resistance value of the adjustable resistance module according to target resistance value；
Correspondingly, the power source protective module carries out the outer plug-in card on the extrapolation card slot according to the current protection point
The process of overcurrent protection are as follows:
The power source protective module detects whether the electric current flowed through at each card slot reaches the adjustable resistance correspondence respectively
Current protection point control the connection disconnected between the card slot and power supply if reaching.
Preferably, whole for the extrapolation card slot when being inserted with multiple outer plug-in cards and current protection point on the extrapolation card slot
It is described according to the characteristic and the resistance value of default regulation rule adjustment adjustable resistance module when the current protection point of body
Process includes:
The sum of the performance power consumption for calculating each outer plug-in card on the extrapolation card slot, according to the sum of described performance power consumption and in advance
If power consumption resistance value correspond to table, the corresponding target resistance value of the sum of described performance power consumption is determined, according to can described in the adjustment of target resistance value
Adjust the resistance value of resistive module；
Correspondingly, the power source protective module carries out the outer plug-in card on the extrapolation card slot according to the current protection point
The process of overcurrent protection are as follows:
It is corresponding whether the total current that the power source protective module detects on the extrapolation card slot reaches the adjustable resistance
Current protection point controls the connection disconnected between the card slot and power supply if reaching.
Preferably, the adjustable resistance module includes n adjustable resistance, and n is equal to the card slot sum in the extrapolation card slot；
N is equal to the card slot sum in the extrapolation card slot；The system administration chip is separately connected the control terminal of each adjustable resistance, often
The first end of a adjustable resistance is separately connected corresponding fixed power source anode, and the second end of each adjustable resistance is grounded, often
The first end and second end of a adjustable resistance connects the power source protective module as the collection terminal of adjustable resistance described in this；
The electric parameter is electric current；
Each adjustable resistance is provided with mark corresponding with each card slot in the extrapolation card slot；The system pipes
Manage the mark that the adjustable resistance is pre-saved in chip and the power source protective module and its corresponding outer plug-in card
The mark of card slot in slot；
The system administration chip reads the characteristic for the outer plug-in card being inserted on the extrapolation card slot, according to the feature
The process of the resistance value of adjustable resistance module described in data and default regulation rule adjustment, specifically includes:
The system administration chip read respectively each outer plug-in card being inserted on the extrapolation card slot characteristic and its
Locating card slot mark, it is corresponding according to the characteristic and the read each card slot mark of default regulation rule adjustment
The resistance value of adjustable resistance；
The power source protective module determines institute's outer plug-in card according to the electric parameter between collection terminal in the adjustable resistance module
The current protection point of outer plug-in card on slot；The output electric current of the power supply is controlled according to the current protection point；According to the electric current
Protection point carries out the process of overcurrent protection to the outer plug-in card on the extrapolation card slot, specifically includes:
The power source protective module determines that its is corresponding according to the electric parameter between the collection terminal of each adjustable resistance
The current protection point of card slot；Each output end that the power supply is controlled according to the current protection point exports of corresponding size respectively
Electric current is to corresponding card slot；Overcurrent protection is carried out to it according to each card slot corresponding current protection point.
The present invention provides a kind of server system overcurrent protective device, including it is system administration chip, extrapolation card slot, adjustable
Resistive module, power supply and power source protective module, system administration chip can be according to the outer plug-in cards being inserted on extrapolation card slot come really
Determine the characteristic of the outer plug-in card, later the resistance value of foundation this feature data point reuse adjustable resistance module, later power protection mould
Voltage or electric current in block foundation adjustable resistance module is come the current protection point determined, and power source protective module foundation determines later
The current protection point control external card slot of power supply be powered, and overcurrent protection behaviour externally is carried out to outer plug-in card on card slot
Make.As it can be seen that the present invention is directed to the outer plug-in card with different characteristic data, different current protection points can be set dynamically, so that
When each outer plug-in card on external card slot carries out overcurrent protection, specific aim is stronger, and the scope of application is wider, can be more accurate
The all types of outer plug-in card of support overcurrent protection.The server system overcurrent based on above-mentioned apparatus that the present invention also provides a kind of
Guard method.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to institute in the prior art and embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of current server system overcurrent protective device；
Fig. 2 is a kind of structural schematic diagram of server system overcurrent protective device provided by the invention；
Fig. 3 is a kind of structural representation of a kind of specific embodiment of server system overcurrent protective device provided by the invention
Figure；
Fig. 4 is that a kind of structure of another specific embodiment of server system overcurrent protective device provided by the invention is shown
It is intended to；
Fig. 5 is a kind of flow chart of the process of server system over-current protection method provided by the invention.
Specific embodiment
Core of the invention is to provide a kind of server system overcurrent protective device and its method, makes it possible to as dissimilarity
The outer plug-in card of energy, is set dynamically different current protection points, so that each outer plug-in card on external card slot carries out overcurrent guarantor
When shield, specific aim is stronger, and the scope of application is wider, can more accurately support the overcurrent protection of all types of outer plug-in cards.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The present invention provides a kind of server system overcurrent protective devices, comprising: system administration chip 1, extrapolation card slot 4,
Adjustable resistance module 5, power source protective module 2 and power supply 3；System administration chip 1 is separately connected extrapolation card slot 4 and adjustable electric
Hinder the control terminal of module 5；Power source protective module 2 is separately connected the collection terminal of adjustable resistance module 5, power supply 3 and extrapolation card slot
4；Power supply 3 connects extrapolation card slot 4；The positive terminal of adjustable resistance module 5 is connected and fixed 3 anode of power supply, and adjustable resistance module 5 is born
Extreme ground connection；
System administration chip 1, for reading the characteristic for the outer plug-in card being inserted on extrapolation card slot 4, according to characteristic
And the resistance value of default regulation rule adjustment adjustable resistance module 5；
Power source protective module 2, for determining institute's outer plug-in card according to the electric parameter between collection terminal in adjustable resistance module 5
The current protection point of outer plug-in card on slot 4；Output electric current according to current protection point control power supply 3；It is external according to current protection point
Outer plug-in card on card slot 4 carries out overcurrent protection.
Referring to figure 1 and figure 2, wherein VC is 3 anode of fixed power source.
The present invention provides a kind of server system overcurrent protective device, including system administration chip 1, extrapolation card slot 4, can
Tune resistive module 5, power supply 3 and power source protective module 2, system administration chip 1 can be according to the extrapolations being inserted on extrapolation card slot 4
Block the characteristic to determine the outer plug-in card, later the resistance value of foundation this feature data point reuse adjustable resistance module 5, later power supply
Protective module 2 according in adjustable resistance module 5 voltage or electric current come the current protection point determined, power source protective module 2 later
Be powered according to the identified current protection point control external card slot 4 of power supply 3, and externally on card slot 4 to outer plug-in card
Carry out overcurrent protection operation.As it can be seen that the present invention is directed to the outer plug-in card with different characteristic data, different electricity can be set dynamically
Stream protection point, so that specific aim is stronger, and the scope of application is more when each outer plug-in card on external card slot 4 carries out overcurrent protection
Extensively, the overcurrent protection of all types of outer plug-in cards can be more accurately supported.
Preferably, adjustable resistance module 5 includes an adjustable resistance, and the control terminal of adjustable resistance connects system administration
The output end of chip 1, the first end of adjustable resistance are connected and fixed 3 anode of power supply, the second end ground connection of adjustable resistance, adjustable resistance
First end and second end as 5 collection terminal of adjustable resistance module；Electric parameter is electric current.It is shown in Figure 3.
It is understood that the resistance value of adjustable resistance by system administration chip 1 adjustment and after changing, due to its both ends
Voltage is constant, therefore electric current can change thereon.Therefore, by adjusting the resistance value of adjustable resistance, power source protective module 2
Obtain the corresponding different current protection point of different electric currents.
In another embodiment, since multiple outer plug-in cards can be set on extrapolation card slot 4, these outer plug-in cards can have difference
Current protection point.Therefore, adjustable resistance module 5 may include n adjustable resistance, and the card slot that n is equal in extrapolation card slot 4 is total
Number；System administration chip 1 is separately connected the control terminal of each adjustable resistance, and the first end of each adjustable resistance is separately connected correspondence
The anode of fixed power source 3, the second end ground connection of each adjustable resistance, the first end and second end of each adjustable resistance can as this
The collection terminal of resistance is adjusted to connect power source protective module 2；Electric parameter is electric current；
Each adjustable resistance is provided with mark corresponding with each card slot in extrapolation card slot 4；System administration chip 1 and
The mark of adjustable resistance and its mark of the card slot in corresponding extrapolation card slot 4 are pre-saved in power source protective module 2；
System administration chip 1 is specifically used for: read respectively the characteristic of each outer plug-in card being inserted on extrapolation card slot 4 and
Card slot mark locating for it, according to characteristic and the read each card slot mark of default regulation rule adjustment is corresponding can
Adjust the resistance value of resistance；
Power source protective module 2 is specifically used for: determining its correspondence according to the electric parameter between the collection terminal of each adjustable resistance
Card slot current protection point；Each output end according to current protection point control power supply 3 exports electric current of corresponding size respectively
To corresponding card slot；Overcurrent protection is carried out to it according to each card slot corresponding current protection point.
It is understood that in the present embodiment, by the way that adjustable resistance identical with pocket numbers is arranged, so that each may be used
Ohmically resistance value is adjusted to respectively correspond the current protection point of respective card slot.This mode makes can be right simultaneously in same card slot
Each outer plug-in card carries out different overcurrent protections, and specific aim is stronger, and the scope of application is wider.
In another preferred embodiment, adjustable resistance module 5 includes an adjustable resistance and a divider resistance, adjustable electric
Resistance control terminal connection system administration chip 1 output end, adjustable resistance and divider resistance series connection after series circuit first
End is connected and fixed 3 anode of power supply, the second end ground connection of series circuit, both ends the adopting as adjustable resistance module 5 of adjustable resistance
Collect end；Electric parameter is voltage or electric current.It is shown in Figure 4.
It is understood that since adjustable resistance is connected with divider resistance, when the resistance value of adjustable resistance changes
Afterwards, the sum of adjustable resistance and the resistance value of divider resistance also change, so that the electric current on adjustable resistance changes.Meanwhile
Since the resistance value of only adjustable resistance changes, the partial pressure on adjustable resistance also changes, therefore, such case can
Adjust ohmically voltage and current can be as resistance value changes.Therefore, power source protective module 2 can be according on adjustable resistance
Voltage or current carry out the setting of current protection point.
In other instances, adjustable resistance module 5 also may include n group series circuit, and every group of series circuit includes one
Adjustable resistance and a divider resistance, n are equal to the card slot sum in extrapolation card slot 4；System administration chip 1 be separately connected it is each can
The control terminal of resistance is adjusted, the corresponding fixed power source 3 of the first end connection of every group of series circuit is positive, and the second of every group of series circuit
The first end and second end of end ground connection, each adjustable resistance connects power source protective module 2 as the collection terminal of the adjustable resistance；Electricity
Parameter is current or voltage；
Each adjustable resistance is provided with mark corresponding with each card slot in extrapolation card slot 4；System administration chip 1 and
The mark of adjustable resistance and its mark of the card slot in corresponding extrapolation card slot 4 are pre-saved in power source protective module 2；
At this point, system administration chip 1 is specifically used for: reading the feature for each outer plug-in card being inserted on extrapolation card slot 4 respectively
Data and its locating card slot mark, according to characteristic and the read each card slot mark pair of default regulation rule adjustment
The resistance value for the adjustable resistance answered；
Power source protective module 2 is specifically used for: determining its correspondence according to the electric parameter between the collection terminal of each adjustable resistance
Card slot current protection point；Each output end according to current protection point control power supply 3 exports electric current of corresponding size respectively
To corresponding card slot；Overcurrent protection is carried out to it according to each card slot corresponding current protection point.
It is understood that in the present embodiment, by be arranged series circuit identical with pocket numbers make it is each can
Ohmically resistance value is adjusted to respectively correspond the current protection point of respective card slot.This mode makes can be right simultaneously in same card slot
Each outer plug-in card carries out different overcurrent protections, and specific aim is stronger, and the scope of application is wider.
In a preferred embodiment, power source protective module 2 includes current protection chip ADM1276, since ADM1276 only includes
Therefore one sampling end can be only attached with the collection terminal of an adjustable resistance.Therefore adjustable resistance module 5 includes
When multiple adjustable resistances, the corresponding multiple current protection chip ADM1276 of setting are needed in power source protective module 2.Each
The sampling end of ADM1276 connects the collection terminal of an adjustable resistance.Join as shown in figure 3 and figure 4, due to the electricity that C1 is ADM1276
The input of source 3 protection capacitor needs to be arranged a C1 to carry out to the end Vc when VC is provided by the end Vc of power source protective module 2
Protection.
Certainly, in other embodiments, if current protection chip includes multiple sampling ends, one can also be only arranged
Current protection chip, the present invention do not limit the number of set current protection chip and the model of current protection chip.
The above is only specific embodiment, the present invention does not limit the quantity for the adjustable resistance for including in adjustable resistance module 5,
Or the quantity of adjustable resistance and the formed series circuit of divider resistance.
Preferably, adjustable resistance module 5 further includes motor；1 output drive signal of system administration chip is to motor, institute
State resistance value of the driver according to driving signal control motor adjustment adjustable resistance.
It is understood that adjustable resistance needs are controlled manually, such as potentiometer.And the present invention is in order to make adjustable electric
Resistance can be controlled by signal, so that adjustable resistance module 5 further includes driver and motor.Driver passes through different drives
Dynamic signal rotates different angles to control motor, so that the adjustment end in adjustable resistance realizes different degrees of movement,
To complete the control of resistance value.The present invention does not limit the type of adjustable resistance.Certainly, in other embodiments, adjustable resistance
Device motor obstructed can overdrive to control, which is not limited by the present invention.In addition, when the resistance value for needing motor control tune resistance
When, if in adjustable resistance module 5 including multiple tune resistance, may respectively be each adjustable resistance be arranged a corresponding motor with
And driver, or one motor and driver can be only set in order to reduce cost, then by motor according to system administration
A series of driving signals that chip 1 is sent, to adjust separately the resistance value of each adjustable resistance.In addition when there are multiple adjustable resistances
When, one motor can also be set for each adjustable resistance, one driver is set for multiple motors later and is successively driven,
The quantity present invention of the driver and motor that are specifically arranged is without limitation.
In addition, being connected between system administration chip 1 and extrapolation card slot 4 by I2C bus.Since I2C bus protocol has
The function that information is read, therefore connected by I2C bus, enable system administration chip 1 to obtain the characteristic of outer plug-in card.
The present invention also provides a kind of server system over-current protection method, the server system mistake based on any of the above item
Protective device is flowed, it is shown in Figure 5, this method comprises:
Step s1: system administration chip reads the characteristic for the outer plug-in card being inserted on extrapolation card slot, according to characteristic
And the resistance value of default regulation rule adjustment adjustable resistance module；
Step s2: power source protective module determines institute's extrapolation card slot according to the electric parameter between adjustable resistance module collection terminal
The current protection point of upper outer plug-in card；
Step s3: output electric current of the power source protective module according to current protection point control power supply；
Step s4: power source protective module carries out overcurrent protection according to the outer plug-in card on the external card slot of current protection point.
Wherein, overcurrent protection here refers to that power source protective module detects the electricity flowed through on corresponding card slot or outer plug-in card
Flow valuve, judges whether current value is greater than its corresponding current protection point, if more than disconnecting between the card slot and power supply is then controlled.
Preferably, adjustable resistance module includes an adjustable resistance, and the control terminal of adjustable resistance connects system administration
The output end of chip, the first end of adjustable resistance are connected and fixed positive pole, and the second end of adjustable resistance is grounded, adjustable resistance
First end and second end is as adjustable resistance module collection terminal；Electric parameter is electric current.
Further, when being inserted with multiple outer plug-in cards on extrapolation card slot, and current protection point is the corresponding electric current of single card slot
(adjustable resistance module only includes the string of an adjustable resistance or adjustable resistance and divider resistance in the present embodiment when protection point
Join circuit, and system administration chip has only carried out a secondary control to adjustable resistance module), according to characteristic and default tune
The process of resistance value for controlling rule adjustment adjustable resistance module includes:
Determine performance power consumption corresponding to performance is least in power-consuming on extrapolation card slot outer plug-in card；According to identified performance function
Consumption and preset power consumption resistance value correspond to table, determine the corresponding target resistance value of the performance power consumption, adjust according to target resistance value adjustable
The resistance value of resistive module；
Correspondingly, power source protective module carries out the mistake of overcurrent protection according to the outer plug-in card on the external card slot of current protection point
Journey are as follows:
Power source protective module detects whether the electric current flowed through at each card slot reaches the corresponding electric current guarantor of adjustable resistance respectively
Point is protected, if reaching, controls the connection disconnected between the card slot and power supply.
It is understood that since different outer plug-in cards has different performance power consumptions, when each card slot corresponds to phase
With current protection point when, the current protection point is in order to protecting whole outer plug-in cards, it should according to least in power-consuming outer of performance
Plug-in card is arranged, therefore the current value that performance extrapolation khaki least in power-consuming is able to bear is minimum, if therefore according to other extrapolations
The performance of card if current protection point is arranged, inevitably results in performance outer plug-in card least in power-consuming and does not reach in current protection point
It then just damages, therefore, current protection point, energy is arranged with the performance power consumption of performance outer plug-in card least in power-consuming in this case
Enough safeties for guaranteeing whole outer plug-in cards.
In another preferred embodiment, whole for extrapolation card slot when being inserted with multiple outer plug-in cards and current protection point on extrapolation card slot
(adjustable resistance module only includes an adjustable resistance or adjustable resistance and partial pressure in the present embodiment when the current protection point of body
The series circuit of resistance, and system administration chip has only carried out a secondary control to adjustable resistance module), according to characteristic with
And the process of the resistance value of default regulation rule adjustment adjustable resistance module includes:
The sum of the performance power consumption for calculating each outer plug-in card on extrapolation card slot, according to the sum of performance power consumption and preset power consumption
Resistance value corresponds to table, determines the corresponding target resistance value of the sum of performance power consumption, the resistance value according to target resistance value adjustment adjustable resistance module；
Correspondingly, power source protective module carries out the mistake of overcurrent protection according to the outer plug-in card on the external card slot of current protection point
Journey are as follows:
Whether the total current on power source protective module detection extrapolation card slot reaches the corresponding current protection point of adjustable resistance, if
Reach, then controls the connection disconnected between the card slot and power supply.
It is understood that since outer plug-in card is arranged in outer card slot, if extrapolation card slot is Parallel Design, outer plug-in card
The maximum current allowed to flow through in slot is the sum of corresponding current protection point of each outer plug-in card, therefore, if current protection point is outer
When the current protection point of card slot entirety, the sum of the performance power consumption according to outer plug-in cards whole on extrapolation card slot is needed, as tune
The foundation of whole adjustable resistance.This adjustment mode makes subsequent power protective module only need to detect that the electric current of extrapolation card slot entirety
Value, without detecting the electric current in each card slot, overcurrent protection process is more simple.But it is individual due to being likely to occur
Electric current is lower beyond electric current on itself current protection point but other outer plug-in cards on outer plug-in card, leads to extrapolation card slot overall current not
Occur beyond the case where current protection point, therefore overcurrent protection effect is inaccurate.
In addition, when adjustable resistance module only includes the series circuit of an adjustable resistance or adjustable resistance and divider resistance
When, in order to realize to each outer plug-in card using the corresponding purpose for carrying out overcurrent protection of different current protection points, system can be enabled
Repeatedly control adjustable resistance module carries out resistance value adjustment to managing chip respectively.This method, which is suitable for extrapolation card slot interpolation, expires extrapolation
When the case where card.It is specific: to preserve the row of the card slot on extrapolation card slot in system administration chip and power management module respectively
Sequence；System administration chip successively obtains the characteristic of each outer plug-in card according to the sequence of extrapolation card slot respectively, later system pipes
Reason chip successively adjusts the resistance value of adjustable resistance, the every variation one of the resistance value of adjustable resistance according to the characteristic of each outer plug-in card
Secondary, then power management module then determines the corresponding current protection point of electric parameter on an adjustable resistance, and by the current protection
Point is saved according to predetermined order (or can be by the preservation corresponding with the sequence serial number of card slot of current protection point, the present invention couple
This is without limitation), power management module is according to corresponding card on the external card slot of each current protection point of self record later
Slot carries out overcurrent protection.
In another preferred embodiment, adjustable resistance module includes n adjustable resistance, and n is equal to the card slot in extrapolation card slot
Sum；N is equal to the card slot sum in extrapolation card slot；System administration chip is separately connected the control terminal of each adjustable resistance, each
The first end of adjustable resistance is separately connected corresponding fixed power source anode, and the second end ground connection of each adjustable resistance is each adjustable
The first end and second end of resistance connects power source protective module as the collection terminal of the adjustable resistance；Electric parameter is electric current；It is each
Adjustable resistance is provided with mark corresponding with each card slot in extrapolation card slot；In system administration chip and power source protective module
Pre-save the mark of adjustable resistance and its mark of the card slot in corresponding extrapolation card slot；
System administration chip reads the characteristic for the outer plug-in card being inserted on extrapolation card slot, according to characteristic and presets
The process for regulating and controlling the resistance value of rule adjustment adjustable resistance module, specifically includes:
System administration chip read respectively each outer plug-in card being inserted on extrapolation card slot characteristic and its locating card
Slot mark identifies the resistance of corresponding adjustable resistance according to characteristic and the default regulation read each card slot of rule adjustment
Value；
Power source protective module determines extrapolation on institute's extrapolation card slot according to the electric parameter between collection terminal in adjustable resistance module
The current protection point of card；Output electric current according to current protection point control power supply；According on the external card slot of current protection point
Outer plug-in card carries out the process of overcurrent protection, specifically includes:
Power source protective module determines the electricity of its corresponding card slot according to the electric parameter between the collection terminal of each adjustable resistance
Stream protection point；Each output end according to current protection point control power supply exports electric current of corresponding size to corresponding card respectively
Slot；Overcurrent protection is carried out to it according to each card slot corresponding current protection point.
In other instances, adjustable resistance module also may include n group series circuit.Every group of series circuit can comprising one
Resistance and a divider resistance are adjusted, n is equal to the card slot sum in extrapolation card slot；System administration chip is separately connected each adjustable electric
The control terminal of resistance, the first end of every group of series circuit connect corresponding fixed power source anode, the second termination of every group of series circuit
The first end and second end on ground, each adjustable resistance connects power source protective module as the collection terminal of the adjustable resistance；Electric parameter
For current or voltage；
Each adjustable resistance is provided with mark corresponding with each card slot in extrapolation card slot；System administration chip and electricity
The mark of adjustable resistance and its mark of the card slot in corresponding extrapolation card slot are pre-saved in source protection module；
At this point, system administration chip reads the characteristic of outer plug-in card being inserted on extrapolation card slot, according to characteristic with
And the process of the resistance value of default regulation rule adjustment adjustable resistance module, specifically include: system administration chip reads extrapolation respectively
The characteristic for each outer plug-in card being inserted on card slot and its locating card slot mark, according to characteristic and default regulation rule
Then adjust the resistance value that read each card slot identifies corresponding adjustable resistance；
Power source protective module determines extrapolation on institute's extrapolation card slot according to the electric parameter between collection terminal in adjustable resistance module
The current protection point of card；Output electric current according to current protection point control power supply；According on the external card slot of current protection point
Outer plug-in card carries out the process of overcurrent protection, specifically includes: between collection terminal of the power source protective module according to each adjustable resistance
Electric parameter determines the current protection point of its corresponding card slot；Each output end according to current protection point control power supply exports respectively
Electric current of corresponding size is to corresponding card slot；Overcurrent protection is carried out to it according to each card slot corresponding current protection point.
Certainly, the above is only several specific embodiments, the present invention does not limit the composition of adjustable resistance module, current protection point
Number and system administration chip adjustment adjustable resistance resistance value when based on data content.
In addition, the characteristic for the outer plug-in card that system administration chip obtains can be performance power consumption, or it is also possible to outer
The model of plug-in card, system administration chip determines the performance power consumption of corresponding outer plug-in card according to model later.The present invention does not limit feature
The particular content of data.
In addition, power source protective module in order to according on adjustable resistance voltage or electric current protect generating corresponding electric current
Point is protected, needs to prestore the corresponding relationship between the electric parameter on adjustable resistance and current protection point in power source protective module.
Wherein, the embodiment that method provided by the invention includes is filled with server system overcurrent protection provided by the invention
It sets the embodiment for including and corresponds realization each other.
Above several specific embodiments are only the preferred embodiment of the present invention, and above several specific embodiments can be with
Any combination, the embodiment obtained after combination is also within protection scope of the present invention.It should be pointed out that for the art
For those of ordinary skill, relevant speciality technical staff deduced out in the case where not departing from spirit of that invention and concept thereof other change
Into and variation, should all be included in the protection scope of the present invention.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or equipment for including element.
Claims (10)
1. a kind of server system overcurrent protective device characterized by comprising system administration chip, extrapolation card slot, adjustable electric
Hinder module, power source protective module and power supply；The system administration chip is separately connected the extrapolation card slot and described adjustable
The control terminal of resistive module；The power source protective module be separately connected the collection terminal of the adjustable resistance module, the power supply with
And the extrapolation card slot；The power supply connects the extrapolation card slot；The positive terminal of the adjustable resistance module is connected and fixed power supply
Anode, the negative pole end ground connection of the adjustable resistance module；
The system administration chip, for reading the characteristic for the outer plug-in card being inserted on the extrapolation card slot, according to the spy
Levy the resistance value of adjustable resistance module described in data and default regulation rule adjustment；
The power source protective module, for determining institute's extrapolation according to the electric parameter between collection terminal in the adjustable resistance module
The current protection point of outer plug-in card on card slot；The output electric current of the power supply is controlled according to the current protection point；According to the electricity
Stream protection point carries out overcurrent protection to the outer plug-in card on the extrapolation card slot.
2. server system overcurrent protective device according to claim 1, which is characterized in that the adjustable resistance module packet
An adjustable resistance is included, the control terminal of the adjustable resistance connects the output end of the system administration chip, the adjustable resistance
First end connect fixed power source anode, the second end ground connection of the adjustable resistance, the first end of the adjustable resistance and
Second end is as the adjustable resistance module collection terminal；The electric parameter is electric current.
3. server system overcurrent protective device according to claim 1, which is characterized in that the adjustable resistance module packet
N adjustable resistance is included, n is equal to the card slot sum in the extrapolation card slot；The system administration chip is separately connected each adjustable
The control terminal of resistance, the first end of each adjustable resistance are separately connected corresponding fixed power source anode, each adjustable resistance
Second end ground connection, the first end and second end of each adjustable resistance connects institute as the collection terminal of adjustable resistance described in this
State power source protective module；The electric parameter is electric current；
Each adjustable resistance is provided with mark corresponding with each card slot in the extrapolation card slot；The system administration core
It is pre-saved in piece and the power source protective module in the mark and its corresponding extrapolation card slot of the adjustable resistance
Card slot mark；
The system administration chip is specifically used for: reading the characteristic for each outer plug-in card being inserted on the extrapolation card slot respectively
And its locating card slot mark, according to the characteristic and the read each card slot mark pair of default regulation rule adjustment
The resistance value for the adjustable resistance answered；
The power source protective module is specifically used for: determining that its is right according to the electric parameter between the collection terminal of each adjustable resistance
The current protection point for the card slot answered；The each output end difference output phase for controlling the power supply according to the current protection point should be big
Small electric current is to corresponding card slot；Overcurrent protection is carried out to it according to each card slot corresponding current protection point.
4. server system overcurrent protective device according to claim 1, which is characterized in that the adjustable resistance module packet
An adjustable resistance and a divider resistance are included, the control terminal of the adjustable resistance connects the output of the system administration chip
The first end of series circuit after end, the adjustable resistance and divider resistance series connection connects the fixed power source anode, institute
State the second end ground connection of series circuit, collection terminal of the both ends of the adjustable resistance as the adjustable resistance module；The electricity
Parameter is voltage or electric current.
5. server system overcurrent protective device according to claim 2 or 3, which is characterized in that the adjustable resistance mould
Block further includes driver and motor；The system administration chip output drive signal to the driver, the driver according to
The resistance value that the motor adjusts the adjustable resistance is controlled according to the driving signal.
6. a kind of server system over-current protection method, which is characterized in that be based on the described in any item servers of claim 1-5
System overcurrent protective device, which comprises
System administration chip reads the characteristic for the outer plug-in card being inserted on the extrapolation card slot, according to the characteristic and
The resistance value of default regulation rule adjustment adjustable resistance module；
Power source protective module determines outer plug-in card on institute's extrapolation card slot according to the electric parameter between the adjustable resistance module collection terminal
Current protection point；
The power source protective module controls the output electric current of the power supply according to the current protection point；
The power source protective module carries out overcurrent protection to the outer plug-in card on the extrapolation card slot according to the current protection point.
7. server system over-current protection method according to claim 6, which is characterized in that the adjustable resistance module packet
An adjustable resistance is included, the control terminal of the adjustable resistance connects the output end of the system administration chip, the adjustable resistance
First end connect fixed power source anode, the second end ground connection of the adjustable resistance, the first end of the adjustable resistance and
Second end is as the adjustable resistance module collection terminal；The electric parameter is electric current.
8. server system over-current protection method according to claim 7, which is characterized in that when slotting on the extrapolation card slot
There are multiple outer plug-in cards, and when current protection point is single card slot corresponding current protection point, it is described according to the characteristic
Accordingly and the process of the resistance value of adjustable resistance module described in default regulation rule adjustment includes:
Determine performance power consumption corresponding to performance is least in power-consuming on the extrapolation card slot outer plug-in card；
Table is corresponded to according to identified performance power consumption and preset power consumption resistance value, determines the corresponding target resistance of the performance power consumption
Value adjusts the resistance value of the adjustable resistance module according to target resistance value；
Correspondingly, the power source protective module carries out overcurrent to the outer plug-in card on the extrapolation card slot according to the current protection point
The process of protection are as follows:
The power source protective module detects whether the electric current flowed through at each card slot reaches the corresponding electricity of the adjustable resistance respectively
Stream protection point controls the connection disconnected between the card slot and power supply if reaching.
9. server system over-current protection method according to claim 7, which is characterized in that when slotting on the extrapolation card slot
It is described according to the feature when to have multiple outer plug-in cards and current protection point be the current protection point of the extrapolation card slot entirety
The process of the resistance value of data and default regulation rule adjustment adjustable resistance module includes:
The sum of the performance power consumption for calculating each outer plug-in card on the extrapolation card slot, according to the sum of described performance power consumption and preset
Power consumption resistance value corresponds to table, determines the corresponding target resistance value of the sum of described performance power consumption, adjusts the adjustable electric according to target resistance value
Hinder the resistance value of module；
Correspondingly, the power source protective module carries out overcurrent to the outer plug-in card on the extrapolation card slot according to the current protection point
The process of protection are as follows:
Whether the total current that the power source protective module detects on the extrapolation card slot reaches the corresponding electric current of the adjustable resistance
Point is protected, if reaching, controls the connection disconnected between the card slot and power supply.
10. server system over-current protection method according to claim 6, which is characterized in that the adjustable resistance module
Including n adjustable resistance, n is equal to the card slot sum in the extrapolation card slot；N is equal to the card slot sum in the extrapolation card slot；
The system administration chip is separately connected the control terminal of each adjustable resistance, and the first end of each adjustable resistance is separately connected correspondence
Fixed power source anode, each adjustable resistance second end ground connection, the first end and second end of each adjustable resistance
Collection terminal as adjustable resistance described in this connects the power source protective module；The electric parameter is electric current；
Each adjustable resistance is provided with mark corresponding with each card slot in the extrapolation card slot；The system administration core
It is pre-saved in piece and the power source protective module in the mark and its corresponding extrapolation card slot of the adjustable resistance
Card slot mark；
The system administration chip reads the characteristic for the outer plug-in card being inserted on the extrapolation card slot, according to the characteristic
And the process of the resistance value of adjustable resistance module described in default regulation rule adjustment, it specifically includes:
The system administration chip reads the characteristic of each outer plug-in card being inserted on the extrapolation card slot and its locating respectively
Card slot mark, it is corresponding adjustable according to the characteristic and the read each card slot mark of default regulation rule adjustment
The resistance value of resistance；
The power source protective module determines on institute's extrapolation card slot according to the electric parameter between collection terminal in the adjustable resistance module
The current protection point of outer plug-in card；The output electric current of the power supply is controlled according to the current protection point；According to the current protection
Point carries out the process of overcurrent protection to the outer plug-in card on the extrapolation card slot, specifically includes:
The power source protective module determines its corresponding card slot according to the electric parameter between the collection terminal of each adjustable resistance
Current protection point；The each output end for controlling the power supply according to the current protection point exports electric current of corresponding size respectively
To corresponding card slot；Overcurrent protection is carried out to it according to each card slot corresponding current protection point.
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| CN201910168602.0A CN109917893A (en) | 2019-03-06 | 2019-03-06 | A kind of server system overcurrent protective device and its method |
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| CN201910168602.0A CN109917893A (en) | 2019-03-06 | 2019-03-06 | A kind of server system overcurrent protective device and its method |
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| WO2023045201A1 (en) * | 2021-09-23 | 2023-03-30 | 苏州浪潮智能科技有限公司 | Over current protection method and apparatus, and power supply circuit |
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