CN106648020A - Method and apparatus for preventing over-current protection malfunction - Google Patents
Method and apparatus for preventing over-current protection malfunction Download PDFInfo
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- CN106648020A CN106648020A CN201710007361.2A CN201710007361A CN106648020A CN 106648020 A CN106648020 A CN 106648020A CN 201710007361 A CN201710007361 A CN 201710007361A CN 106648020 A CN106648020 A CN 106648020A
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- power supply
- duration
- supply circuit
- auxiliary power
- electrical equipment
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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
- G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
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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
- G06F1/28—Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention provides a method and an apparatus for preventing an over-current protection malfunction. The method and the apparatus are applied to a power supply. The method comprises the steps of receiving a startup signal of electric equipment taking the power supply as a power source; sending out a first control instruction according to the startup signal, thereby disabling an over-current protection function of an auxiliary power supply line on the power supply; judging whether a duration of disabling the over-current protection function reaches a preset first standard duration or not; and if yes, sending out a second control instruction to recover the over-current protection function. The apparatus comprises a receiving unit, a function shielding unit, a first judgment unit and a function recovery unit. According to the scheme, the cost of the power supply can be reduced.
Description
Technical field
The present invention relates to field of computer technology, more particularly to a kind of method and device for preventing over-current protection malfunction from making.
Background technology
With the continuous development and progress of computer technology, server due to stronger computing capability, security and
Reliability, be widely used in living, produce in every field.Power supply is used as the vitals of server, and it is steady that it runs
The qualitative stability for directly determining server.In order to prevent the high current produced during power failure from damaging server master
Plate, server power supply is usually provided with overcurrent protection function, when server is short-circuited or heavy current impact is occurred by thunderbolt
When, the overcurrent protection function of server power supply is triggered, and server power supply stops output power, to protect to server master board
Shield.
Server power supply includes mains supply line and auxiliary power supply circuit, and wherein auxiliary power supply circuit (Stand By) is used for
Realize the startup of power supply.In the moment of server start, the electric capacity on server master board is charged, and auxiliary power supply circuit can be produced
Raw transient high-current impact, the heavy current impact can trigger the overcurrent protection function of server power supply, cause server without
Method normally starts.
At present, in order to prevent server power supply over-current protection malfunction from making, the property of hardware is lifted when server power supply is designed
Can, to lift the trigger current of overcurrent protection, the heavy current impact that auxiliary power supply circuit is produced when making server start shooting is less than tactile
Generate electricity stream, the situation of over-current protection malfunction work occurs so as to avoid server power supply.
The method for preventing server power supply over-current protection malfunction from making at present is directed to, lifting the performance of power supply hardware can cause
The performance of server power supply is superfluous, causes the relatively costly of power supply.
The content of the invention
Embodiments provide it is a kind of prevent over-current protection malfunction make method and device, can reduce power supply into
This.
A kind of method for preventing over-current protection malfunction from making is embodiments provided, power supply is applied to, including：
Receive the starting-up signal using the power supply as the electrical equipment of power source；
First control instruction is sent according to the starting-up signal, is protected with the excessively stream for closing auxiliary power supply circuit on the power supply
Protective function；
Judge whether the duration for closing the overcurrent protection function reaches default first standard duration；
If it is, the second control instruction is sent, to recover the overcurrent protection function.
Preferably,
It is described judge whether the duration for closing the overcurrent protection function reaches default first standard duration before, enter
One step includes：
The capacity of each electric capacity according to included by the mainboard of the electrical equipment, and the auxiliary power supply circuit is defeated
Go out voltage, the first standard duration is determined by equation below one；
The formula one includes：
Wherein, the T is the first standard duration, and the V is the output voltage of the auxiliary power supply circuit, the k
The total number of the electric capacity included by the mainboard of the electrical equipment, the CiIt is electric for i-th on the mainboard of the electrical equipment
The capacity of appearance, the M is constant.
Preferably,
It is described judge whether the duration for closing the overcurrent protection function reaches default first standard duration before, enter
One step includes：
The capacity of each included electric capacity, the output of the auxiliary power supply circuit on mainboard according to the electrical equipment
The duration of voltage and first control instruction, by equation below two the first standard duration is determined；
The formula two includes：
Wherein, the T is the first standard duration, and the V is the output voltage of the auxiliary power supply circuit, the k
The total number of the electric capacity included by the mainboard of the electrical equipment, the CiIt is electric for i-th on the mainboard of the electrical equipment
The capacity of appearance, the t is the duration of first control instruction, and the N is constant.
Preferably,
It is described judge whether the duration for closing the overcurrent protection function reaches default first standard duration before, enter
One step includes：
Judge the electric current on the auxiliary power supply circuit whether more than default threshold limit value；
If it is, the first standard duration is set as into zero；
If not, any one duration the first standard duration being set as between the 1-5 seconds.
Preferably,
Before the reception is using the power supply as the starting-up signal of the electrical equipment of power source, further include：
Reception makes the auxiliary power supply circuit start the voltage output signal of output voltage；
3rd control instruction is sent according to the voltage output signal, the overcurrent protection function of the auxiliary power supply circuit is made
Close default second standard duration.
The embodiment of the present invention additionally provides a kind of device for preventing over-current protection malfunction from making, and is applied to power supply, including：Receive
Unit, functional shielding unit, the first judging unit and functional rehabilitation unit；
The receiving unit, for receiving the starting-up signal using the power supply as the electrical equipment of power source；
The functional shielding unit, refers to for receiving the starting-up signal according to the receiving unit and sending the first control
Order, to close the overcurrent protection function of auxiliary power supply circuit on the power supply；
First judging unit, be for judging that the functional shielding unit closes the duration of the overcurrent protection function
It is no to reach default first standard duration；
The functional rehabilitation unit, for according to the judged result of first judging unit, if it is, sending the second control
System instruction, to recover the overcurrent protection function.
Preferably, the device is further included：First default unit；
Described first default unit, for the capacity of each electric capacity according to included by the mainboard of the electrical equipment, with
And the output voltage of the auxiliary power supply circuit, the first standard duration is determined by equation below one；
The formula one includes：
Wherein, the T is the first standard duration, and the V is the output voltage of the auxiliary power supply circuit, the k
The total number of the electric capacity included by the mainboard of the electrical equipment, the CiIt is electric for i-th on the mainboard of the electrical equipment
The capacity of appearance, the M is constant.
Preferably, the device is further included：Second default unit；
Described second default unit, for according to the capacity of each electric capacity included on the mainboard of the electrical equipment,
The duration of the output voltage of the auxiliary power supply circuit and first control instruction, is determined described by equation below two
First standard duration；
The formula two includes：
Wherein, the T is the first standard duration, and the V is the output voltage of the auxiliary power supply circuit, the k
The total number of the electric capacity included by the mainboard of the electrical equipment, the CiIt is electric for i-th on the mainboard of the electrical equipment
The capacity of appearance, the t is the duration of first control instruction, and the N is constant.
Preferably, the device is further included：3rd default unit；
Described 3rd default unit, for judging the electric current on the auxiliary power supply circuit whether more than default critical
Value, if it is, the first standard duration is set as into zero, is otherwise set as the first standard duration between the 1-5 seconds
Any one duration.
Preferably, the device is further included：Control unit；
The receiving unit, is further used for receiving the voltage output letter for making the auxiliary power supply circuit start output voltage
Number；
Described control unit, the voltage output signal for being received according to the receiving unit sends the 3rd control
Instruction, the overcurrent protection function for making the auxiliary power supply circuit closes default second standard duration.
A kind of method and device for preventing over-current protection malfunction from making is embodiments provided, electrical equipment is being received
Starting-up signal after, send the first control instruction to close the overcurrent protection function of auxiliary power supply circuit on power supply, excessively stream protect
Protective function is closed duration and is reached after default first standard duration, sends the second control instruction to recover the mistake of auxiliary power supply circuit
Stream defencive function.So, because the overcurrent protection function of auxiliary power supply circuit is temporarily closed, overcurrent protection function will not by with
The transient high-current impact produced on auxiliary power supply circuit when electric equipment is started shooting is triggered, it is ensured that electrical equipment can be just normally opened
Machine.Therefore the performance of power supply hardware need not be lifted just can prevent the over-current protection malfunction of auxiliary power supply circuit from making, so as to reduce
The cost of power supply.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of flow chart for preventing over-current protection malfunction from making method that one embodiment of the invention is provided；
Fig. 2 is a kind of signal for preventing over-current protection malfunction from making device place equipment that one embodiment of the invention is provided
Figure；
Fig. 3 is a kind of schematic diagram for preventing over-current protection malfunction from making device that one embodiment of the invention is provided；
Fig. 4 is that a kind of over-current protection malfunction that prevents including the first default unit that one embodiment of the invention is provided is filled
The schematic diagram put；
Fig. 5 is that a kind of over-current protection malfunction that prevents including the second default unit that one embodiment of the invention is provided is filled
The schematic diagram put；
Fig. 6 is that a kind of over-current protection malfunction that prevents including the 3rd default unit that one embodiment of the invention is provided is filled
The schematic diagram put；
Fig. 7 is that a kind of over-current protection malfunction that prevents including control unit that one embodiment of the invention is provided makees device
Schematic diagram；
Fig. 8 is a kind of flow chart for preventing over-current protection malfunction from making method that another embodiment of the present invention is provided.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than the embodiment of whole, based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
As shown in figure 1, embodiments providing a kind of method for preventing over-current protection malfunction from making, power supply is applied to,
The method may comprise steps of：
Step 101：Receive the starting-up signal using the power supply as the electrical equipment of power source；
Step 102：First control instruction is sent according to the starting-up signal, to close auxiliary power supply circuit on the power supply
Overcurrent protection function；
Step 103：Judge whether the duration for closing the overcurrent protection function reaches default first standard duration, if
It is that execution step 104 otherwise continues executing with step 103；
Step 104：The second control instruction is sent, to recover the overcurrent protection function.
A kind of method for preventing over-current protection malfunction from making is embodiments provided, the start of electrical equipment is being received
After signal, the first control instruction is sent to close the overcurrent protection function of auxiliary power supply circuit on power supply, in overcurrent protection function
Close duration to reach after default first standard duration, send the second control instruction to recover the overcurrent protection of auxiliary power supply circuit
Function.So, because the overcurrent protection function of auxiliary power supply circuit is temporarily closed, overcurrent protection function will not be by electrical equipment
The transient high-current impact produced on auxiliary power supply circuit during start is triggered, it is ensured that electrical equipment being capable of normal boot-strap.Therefore
The performance of power supply hardware need not be lifted just can prevent the over-current protection malfunction of auxiliary power supply circuit from making, so as to reduce power supply into
This.
In an embodiment of the invention, each electric capacity before step 103, according to included by the mainboard of electrical equipment
Capacity, and the output voltage of auxiliary power supply circuit, if determining the first standard duration by formula one；
Formula one includes：
Wherein, T is the first standard duration, and V is the output voltage for aiding in supply line, and k is wrapped by the mainboard of electrical equipment
The total number of the electric capacity for including, CiFor the capacity of i-th electric capacity on the mainboard of electrical equipment, M is constant.
Specifically,
When electrical equipment is started shooting, power supply is charged to each electric capacity included by electrical equipment mainboard, electrical equipment
The total capacity of electric capacity included by mainboard is bigger, and the time required for charging is longer, correspondingly produces on auxiliary power supply circuit
The duration of heavy current impact is longer, in order to the over-current protection malfunction for preventing auxiliary power supply circuit is made, at overcurrent protection function
It is correspondingly longer in the first standard duration of closed mode, therefore the first standard duration and electric capacity included by electrical equipment mainboard
Total capacity is into positive correlation.
When electrical equipment is started shooting, power supply is charged to each electric capacity included by electrical equipment mainboard, power supply auxiliary
The output voltage of supply line is higher, and the time needed for each electric capacity is fully charged is longer, correspondingly, produces on auxiliary power supply circuit
Heavy current impact duration it is longer, in order to the over-current protection malfunction for preventing auxiliary power supply circuit is made, overcurrent protection function
The first standard duration being closed correspondingly should be longer, therefore the first standard duration and auxiliary power supply circuit output electricity
The magnitude of voltage of pressure is into positive correlation.
To sum up, the first standard duration and the total capacity of electric capacity included by electrical equipment mainboard and auxiliary power supply circuit output electricity
Pressure determined for the first standard time by formula one into positive correlation, it is ensured that aid in electrical equipment start process
The heavy current impact produced in supply line will not trigger over-current protection malfunction work, and then ensure that electrical equipment can be just normally opened
Machine.
For example, electrical equipment is server, on server power supply the output voltage of auxiliary power supply circuit be 5V, server master
The total capacity of each electric capacity is 5000 μ F on plate, and constant M is taken 6000, calculated by above-mentioned formula one：
First standard duration T is determined according to above-mentioned result of calculation, such as determines that the first standard duration T is 5, then received
During the starting-up signal of server, recover after the overcurrent protection function of auxiliary power supply circuit on server power supply is closed 5 seconds.
In an embodiment of the invention, when the first standard duration was determined before step 103, can be according to electrical equipment
On mainboard the capacity of each included electric capacity, the output voltage of auxiliary power supply circuit and the first control instruction it is lasting when
It is long, the first standard duration is determined by equation below two；
Formula two includes：
Wherein, T is the first standard duration, and V is the output voltage for aiding in supply line, and k is wrapped by the mainboard of electrical equipment
The total number of the electric capacity for including, CiFor the capacity of i-th electric capacity on the mainboard of electrical equipment, t be the first control instruction it is lasting when
Long, N is constant.
Specifically,
When electrical equipment is started shooting, if the duration of the first control instruction is longer, the mains supply line on power supply is replaced
It is a process for progressively carrying out that auxiliary power supply circuit is changed to the process that electrical equipment is powered, and can trigger auxiliary power supply circuit mistake
The duration of the heavy current impact of stream protection is shorter, and now the first standard duration can be shorter；If the first control instruction
Duration is shorter, and the mains supply line on power supply is replaced rapidly auxiliary power supply circuit and powered to electrical equipment, now in auxiliary
Produced heavy current impact is larger in supply line, and the heavy current impact that can trigger auxiliary power supply circuit overcurrent protection is held
Continuous duration is longer, and now the first standard duration should be longer.Therefore the duration of the first standard duration and the first control instruction
Into negative correlativing relation.
With reference to the explanation in above-described embodiment, the first standard duration and the total capacity of electric capacity included by electrical equipment mainboard and
Auxiliary power supply circuit output voltage into positive correlation, with the duration of the first control instruction into negative correlativing relation, therefore
First standard duration is determined by formula two, using the duration of the first control instruction as an affecting parameters, it is ensured that it is determined that
The the first standard duration for going out is more accurate, and the overcurrent protection of power supply auxiliary power supply circuit when ensureing that electrical equipment is started shooting will not be
On the premise of action, shorten the time for closing power supply auxiliary power supply circuit overcurrent protection function, it is ensured that power supply and electrical equipment
Safety.
For example, electrical equipment is server, on server power supply the output voltage of auxiliary power supply circuit be 5V, server master
The total capacity of each electric capacity is 5000 μ F on plate, and the duration of the first control instruction is 0.2s, and constant N takes 60000, by upper
State formula two to be calculated：
First standard duration T is determined according to above-mentioned result of calculation, such as is determined a length of 3 during the first standard, then received
During the starting-up signal of server, the excessively stream of auxiliary power supply circuit on server power supply is included into that function is recovered after closing 3 seconds.
In an embodiment of the invention, judge whether the duration for closing overcurrent protection function reaches in a step 102 pre-
If the first standard duration before, it can be determined that whether the electric current on power supply auxiliary power supply circuit is more than default threshold limit value,
If it is, the first standard duration is set as into zero, when otherwise the first standard duration being set as into any one between the 1-5 seconds
It is long.
Specifically, the electric current on power supply auxiliary power supply circuit is detected, by judging it is pre- whether detected electric current exceedes
If threshold limit value, it may be determined that whether power supply working properly.If the electric current on auxiliary power supply circuit is more than threshold limit value, say
Bright power supply or electrical equipment are likely to occur the failures such as short circuit, now the first standard duration are set as into zero, i.e., do not close auxiliary and supply
The overcurrent protection function of electric line, it is ensured that overcurrent protection function can normal work, to occur in power supply auxiliary power supply circuit
Take protection act during stream in time, it is ensured that the safety of power supply and electrical equipment.If the electric current on auxiliary power supply circuit be less than or
Equal to threshold limit value, illustrate that power supply and electrical equipment do not have failure, now the first standard duration is set as into appointing between the 1-5 seconds
Meaning one duration, with due to electric capacity charge cause auxiliary power supply circuit to close overcurrent protection function when there is heavy current impact,
Ensure that electrical equipment being capable of normal boot-strap on the premise of power supply, electrical equipment is not damaged.
Therefore, by whether judging the electric current on auxiliary power supply circuit more than threshold limit value, power supply auxiliary power supply is being prevented
On the premise of circuit over-current protection malfunction is made, it is ensured that the safety of power supply and electrical equipment, improve the embodiment of the present invention and provided
The over-current protection malfunction that prevents make the reasonability of method and the security of electrical equipment.
In an embodiment of the invention, before step 101 receives starting-up signal, reception starts auxiliary power supply circuit
The voltage output signal of output voltage, the 3rd control instruction of setting out after voltage output signal is received, so that auxiliary power supply line
The overcurrent protection function on road closes default second standard duration.
Specifically, the voltage output letter for making auxiliary power supply circuit start output voltage can be produced after power supply connects civil power
Number, the 3rd control instruction is formed after voltage output signal is received, auxiliary power supply circuit is closed according to the 3rd control instruction
Overcurrent protection function, and duration is closed equal to default second duration.When power supply just connects civil power, the circuit of power source internal
Disturbing line can be produced, therefore after power supply just connects civil power, produces voltage output signal, be formed simultaneously according to voltage output signal
The 3rd control instruction is sent, when the overcurrent protection function of auxiliary power supply circuit being closed into the second standard according to the 3rd control instruction
Long, the interference electric current that power source internal is produced when can so shield just connection civil power prevents the mistake of auxiliary power supply circuit on power supply
Stream defencive function triggered by the interference signal, cause power supply cannot normal output voltage situation occur, it is ensured that power supply is to electricity consumption
Reliability and stability that equipment is powered.
As shown in Figure 2 and Figure 3, a kind of device for preventing over-current protection malfunction from making is embodiments provided.Device is implemented
Example can be realized by software, it is also possible to be realized by way of hardware or software and hardware combining.From for hardware view, such as scheme
It is a kind of hardware structure diagram of the device place equipment for preventing over-current protection malfunction from making provided in an embodiment of the present invention shown in 2, removes
Outside processor, internal memory, network interface and nonvolatile memory shown in Fig. 2, the equipment that device is located in embodiment
Other hardware can also generally be included, be such as responsible for processing the forwarding chip of message.As a example by implemented in software, as shown in figure 3,
It is by corresponding computer in nonvolatile memory by the CPU of its place equipment as the device on a logical meaning
Programmed instruction reads what operation in internal memory was formed.What the present embodiment was provided prevents the device of over-current protection malfunction work, is applied to
Power supply, including：Receiving unit 301, functional shielding unit 302, the first judging unit 303 and functional rehabilitation unit 304；
The receiving unit 301, for receiving the starting-up signal using the power supply as the electrical equipment of power source；
The functional shielding unit 302, for receiving the starting-up signal according to the receiving unit 301 first is sent
Control instruction, to close the overcurrent protection function of auxiliary power supply circuit on the power supply；
First judging unit 303, for judging that the functional shielding unit 302 closes the overcurrent protection function
Whether duration reaches default first standard duration；
The functional rehabilitation unit 304, for according to the judged result of first judging unit 303, if it is, sending
Second control instruction, to recover the overcurrent protection function.
In an embodiment of the invention, as shown in figure 4, this prevents the device that over-current protection malfunction is made from can also include：
First default unit 405；
Described first default unit 405, for the capacity of each electric capacity according to included by the mainboard of the electrical equipment,
And the output voltage of the auxiliary power supply circuit, the first standard duration is determined by equation below one；
The formula one includes：
Wherein, the T is the first standard duration, and the V is the output voltage of the auxiliary power supply circuit, the k
The total number of the electric capacity included by the mainboard of the electrical equipment, the CiIt is electric for i-th on the mainboard of the electrical equipment
The capacity of appearance, the M is constant.
Wherein, the first standard duration that the first default unit 405 is calculated, judges that closing is auxiliary as judging unit 303
Help the standard of supply line's overcurrent protection function duration.
In an embodiment of the invention, as shown in figure 5, this prevents the device of overcurrent protection electric current misoperation from can also wrap
Include：Second default unit 506；
Described second default unit 506, for according to the appearance of each electric capacity included on the mainboard of the electrical equipment
The duration of amount, the output voltage of the auxiliary power supply circuit and first control instruction, is determined by equation below two
The first standard duration；
The formula two includes：
Wherein, the T is the first standard duration, and the V is the output voltage of the auxiliary power supply circuit, the k
The total number of the electric capacity included by the mainboard of the electrical equipment, the CiIt is electric for i-th on the mainboard of the electrical equipment
The capacity of appearance, the t is the duration of first control instruction, and the N is constant.
Wherein, the first standard duration that the second default unit 506 is calculated, judges that closing is auxiliary as judging unit 303
Help the standard of supply line's overcurrent protection function duration.
In an embodiment of the invention, as shown in fig. 6, this prevents the device of overcurrent protection electric current misoperation from can also wrap
Include：3rd default unit 607；
Described 3rd default unit 607, for judging whether the electric current on the auxiliary power supply circuit faces more than default
Dividing value, if it is, the first standard duration is set as into zero, is otherwise set as the first standard duration between the 1-5 seconds
Any one duration.
Wherein, the 3rd default unit 607 is integrated with the function of the default unit 506 of the first default unit 405 or second, when the
When three default units 607 judge that the electric current on auxiliary power supply circuit is less than or equal to critical value, by first preset unit 405 or
The function of the second default unit 506, any one duration the first standard duration being set as between the 1-5 seconds.
In an embodiment of the invention, as shown in fig. 7, this prevents the device of overcurrent protection electric current misoperation from can also wrap
Include：Control unit 708；
The receiving unit 301, is further used for receiving the voltage for making the auxiliary power supply circuit start output voltage defeated
Go out signal；
Described control unit 708, the voltage output signal for being received according to the receiving unit 301 sends
Three control instructions, the overcurrent protection function for making the auxiliary power supply circuit closes default second standard duration.
The contents such as the information exchange between each unit, implementation procedure in said apparatus, due to implementing with the inventive method
Example is based on same design, and particular content can be found in the narration in the inventive method embodiment, and here is omitted.
Below by taking the server power supply with overcurrent protection function as an example, the embodiment of the present invention is provided prevents overcurrent protection
The method of misoperation is described in further detail, as shown in figure 8, the method may comprise steps of：
Step 801：Reception makes server power supply start the voltage output signal of output voltage.
In an embodiment of the invention, the electric energy of the civil power or battery input outside reception is started in server power supply
When, a voltage output signal for making server power supply start output voltage can be produced, the signal is to characterize server power supply
Auxiliary power supply circuit start output voltage.The voltage output signal is received after electricity on server power supply.
Step 802：The 3rd control instruction is formed and sent according to voltage output signal, so that the excessively stream of auxiliary power supply circuit
Defencive function closes the second standard duration.
In an embodiment of the invention, after voltage output signal is received, the 3rd control instruction is formed, and will be formed
The 3rd control instruction send, the 3rd control instruction can make the overcurrent protection function of auxiliary power supply circuit on server power supply
The second standard duration is closed, to shield the interference electric current that server power supply back produces when server power supply just goes up electricity, clothes is prevented
The overcurrent protection function of auxiliary power supply circuit is triggered by the interference electric current on business device power supply.
For example, electricity is being carried out to server power supply, when the AUX ENABLE signals on server power supply are effective, with effective
AUX ENABLE signals as voltage output signal.When AUX ENABLE signals are effective, form and send the 3rd control and refer to
Order, drags down the level of AUX_OCP ENABLE signals on server power supply according to the 3rd control instruction, will server power supply
The overcurrent protection function of upper auxiliary power supply circuit is closed, and is closed duration and is reached the electricity of AUX_OCP ENABLE signals after 100ms
Horizontal drawing is high, that is, recover the overcurrent protection function of auxiliary power supply circuit on server power supply.
Step 803：The starting-up signal of the reception server.
In an embodiment of the invention, the auxiliary power supply circuit in server power supply starts the main board power supply for server
Afterwards, the starting-up signal of real-time reception server.
For example, whether the PS_ON signals on real-time monitoring server power supply are low level, are when PS_ON signals are detected
After low level, using low level PS_ON signals as starting-up signal.
Step 804：Whether the electric current on server power supply auxiliary power supply circuit is judged more than default threshold limit value, if
It is, execution step 805, otherwise execution step 806.
In an embodiment of the invention, the main power supply after the starting-up signal for receiving server, on server power supply
Circuit substitutes auxiliary power supply circuit and server master board is powered, now the electricity on detection service device power supply auxiliary power supply circuit
Stream, and whether the electric current is judged more than default threshold limit value, if it is, existing on explanation server power supply or server master board
The failures such as short circuit, cause the current overload on server power supply auxiliary power supply circuit, can not now close auxiliary power supply circuit
Overcurrent protection function, correspondingly execution step 805；If the electric current on auxiliary power supply circuit is less than or equal to default Threshold extent
Value, illustrates that server power supply and server master board do not have failure, can close the overcurrent protection function of auxiliary power supply circuit, in case
Only server master board electric capacity charging produces transient high-current impact and makes the overcurrent protection function misoperation of auxiliary power supply circuit, accordingly
Ground execution step 806.
For example, the PS_ON signals on server power supply are pulled to after low level, and server electricity is judged in the time of 1ms
Whether the electric current on the auxiliary power supply circuit of source is more than 3.6A, if it is, execution step 805, otherwise execution step 806.
Step 805：The overcurrent protection function of server power supply auxiliary power supply circuit is maintained, and terminates current process.
In an embodiment of the invention, face more than default when judging the electric current on server power supply auxiliary power supply circuit
After boundary's threshold value, illustrate to there occurs the failures such as short circuit on server power supply inside or server master board, if now closing server
The overcurrent protection function of power supply auxiliary power supply circuit, the overload current on server power supply auxiliary power supply circuit may damage clothes
Business device power supply or server master board, therefore, the overcurrent protection function of server power supply auxiliary power supply circuit is now maintained, with to clothes
Business device power supply and server master board are protected.
Step 806：The first control instruction is sent, to close the overcurrent protection work(of auxiliary power supply circuit on server power supply
Energy.
In an embodiment of the invention, the electric current on server power supply auxiliary power supply circuit is judged is not above presetting
Temp Threshold after, the first control instruction is sent, to close the overcurrent protection function of auxiliary power supply circuit on server power supply.
For example, after the electric current on detection service device power supply auxiliary power supply circuit is not above 3.6A, the first control is sent
Instruction, the level of the AUX_OCP ENABLE signals on server power supply is dragged down, and closes the overcurrent protection of server power supply
Function.
Step 807：Judge whether the duration for closing auxiliary power supply circuit overcurrent protection function reaches default first standard
Duration, if it is, execution step 808, otherwise continues executing with step 807.
In an embodiment of the invention, on server power supply is closed after the overcurrent protection function of auxiliary power supply circuit,
The duration that record auxiliary power supply circuit overcurrent protection function is closed, when the duration that overcurrent protection function is closed reaches default first
During standard duration, the overcurrent protection function for replying auxiliary power supply circuit is needed, correspondingly execution step 808；If recorded
Close duration be not reaching to default first standard duration, then continue executing with step 807, until close overcurrent protection function when
Length reaches default first standard duration.Wherein, the first standard duration can be by formula one or formula two in above-described embodiment
Obtain.
For example, a length of 3s when obtaining the first standard by the formula two in above-described embodiment, when auxiliary on server power supply
The overcurrent protection function of supply line close duration reach on 3s, i.e. server power supply at AUX_OCP ENABLE signals with low electricity
Flat duration is reached after 3s, execution step 808 correspondingly, when 3s is not reaching to, continuously carries out step 807 until server
The overcurrent protection function closing duration of auxiliary power supply circuit reaches 3s on power supply.
Step 808：The second control instruction is sent, to recover the overcurrent protection work(of auxiliary power supply circuit on server power supply
Energy.
In an embodiment of the invention, when the duration for closing auxiliary power supply circuit overcurrent protection function on server power supply
After reaching default first standard duration, the second control instruction is sent, to recover the mistake of auxiliary power supply circuit on server power supply
Stream defencive function.
For example, after auxiliary power supply circuit overcurrent protection function duration reaches 3s on server power supply is closed, form concurrent
The second control instruction is sent, AUX_OCP ENABLE signals on server power supply are drawn high to high level, recovered on server power supply
The overcurrent protection function of auxiliary power supply circuit.
A kind of method and device for preventing over-current protection malfunction from making is embodiments provided, at least with following beneficial
Effect：
1st, in the method and device for preventing over-current protection malfunction from making provided in an embodiment of the present invention, set electricity consumption is received
After standby starting-up signal, the first control instruction is sent to close the overcurrent protection function of auxiliary power supply circuit on power supply, in excessively stream
Defencive function is closed duration and is reached after default first standard duration, sends the second control instruction to recover auxiliary power supply circuit
Overcurrent protection function.So, because the overcurrent protection function of auxiliary power supply circuit is temporarily closed, overcurrent protection function will not be by
The transient high-current impact produced on auxiliary power supply circuit when electrical equipment is started shooting is triggered, it is ensured that electrical equipment can be just normally opened
Machine.Therefore the performance of power supply hardware need not be lifted just can prevent the over-current protection malfunction of auxiliary power supply circuit from making, so as to reduce
The cost of power supply.
2nd, in the method and device for preventing over-current protection malfunction from making provided in an embodiment of the present invention, can be set according to electricity consumption
The total capacity and auxiliary power supply circuit output electric current of electric capacity included by standby mainboard determines the first standard duration, it is ensured that electrical equipment is opened
The heavy current impact produced on auxiliary power supply circuit during machine will not trigger over-current protection malfunction work, and then ensure electrical equipment
Being capable of normal boot-strap.Recover the overcurrent protection function of auxiliary power supply circuit in time simultaneously, it is ensured that the safety of power supply and electrical equipment.
3rd, in the method and device for preventing over-current protection malfunction from making provided in an embodiment of the present invention, can be with electrical equipment master
The duration of the total capacity, auxiliary power supply circuit output voltage and the first control instruction of electric capacity included by plate determines the first standard
Duration, using the duration of the first control instruction as an affecting parameters, it is ensured that the first standard duration determined is more accurate
Really, on the premise of the overcurrent protection of power supply auxiliary power supply circuit will not be for action when ensureing that electrical equipment is started shooting, shorten and close
The time of power supply auxiliary power supply circuit overcurrent protection function, it is ensured that the safety of power supply and electrical equipment.
4th, in the method and device for preventing over-current protection malfunction from making provided in an embodiment of the present invention, auxiliary power supply is being closed
Before the overcurrent protection function of circuit, judge that the electric current on auxiliary power supply circuit, whether more than threshold limit value, is preventing power supply auxiliary
On the premise of helping supply line's over-current protection malfunction to make, it is ensured that the safety of power supply and electrical equipment, the embodiment of the present invention is improve
The over-current protection malfunction that prevents for being provided makees the reasonability of method and the security of electrical equipment.
It should be noted that herein, such as first and second etc relational terms are used merely to an entity
Or operation makes a distinction with another entity or operation, and not necessarily require or imply presence between these entities or operation
Any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to non-
Exclusiveness is included, so that a series of process, method, article or equipment including key elements not only includes those key elements,
But also including other key elements being not expressly set out, or also include solid by this process, method, article or equipment
Some key elements.In the absence of more restrictions, the key element for being limited by sentence " including a 〃 ", does not arrange
Except also there is other identical factor in including the process of the key element, method, article or equipment.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of said method embodiment can pass through
Completing, aforesaid program can be stored in the storage medium of embodied on computer readable the related hardware of programmed instruction, the program
Upon execution, the step of including said method embodiment is performed；And aforesaid storage medium includes：ROM, RAM, magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
It is last it should be noted that：Presently preferred embodiments of the present invention is the foregoing is only, the skill of the present invention is merely to illustrate
Art scheme, is not intended to limit protection scope of the present invention.All any modifications made within the spirit and principles in the present invention,
Equivalent, improvement etc., are all contained in protection scope of the present invention.
Claims (10)
1. a kind of method for preventing over-current protection malfunction from making, is applied to power supply, it is characterised in that include：
Receive the starting-up signal using the power supply as the electrical equipment of power source；
First control instruction is sent according to the starting-up signal, to close the overcurrent protection work(of auxiliary power supply circuit on the power supply
Energy；
Judge whether the duration for closing the overcurrent protection function reaches default first standard duration；
If it is, the second control instruction is sent, to recover the overcurrent protection function.
2. method as requested described in 1, it is characterised in that
It is described judge whether the duration for closing the overcurrent protection function reaches default first standard duration before, further
Including：
The capacity of each electric capacity according to included by the mainboard of the electrical equipment, and the output electricity of the auxiliary power supply circuit
Pressure, by equation below one the first standard duration is determined；
The formula one includes：
Wherein, the T is the first standard duration, and the V is the output voltage of the auxiliary power supply circuit, and the k is institute
State the total number of the electric capacity included by the mainboard of electrical equipment, the CiFor i-th electric capacity on the mainboard of the electrical equipment
Capacity, the M is constant.
3. method according to claim 1, it is characterised in that
It is described judge whether the duration for closing the overcurrent protection function reaches default first standard duration before, further
Including：
The capacity of each included electric capacity, the output voltage of the auxiliary power supply circuit on mainboard according to the electrical equipment
And the duration of first control instruction, the first standard duration is determined by equation below two；
The formula two includes：
Wherein, the T is the first standard duration, and the V is the output voltage of the auxiliary power supply circuit, and the k is institute
State the total number of the electric capacity included by the mainboard of electrical equipment, the CiFor i-th electric capacity on the mainboard of the electrical equipment
Capacity, the t is the duration of first control instruction, and the N is constant.
4. method according to claim 1, it is characterised in that
It is described judge whether the duration for closing the overcurrent protection function reaches default first standard duration before, further
Including：
Judge the electric current on the auxiliary power supply circuit whether more than default threshold limit value；
If it is, the first standard duration is set as into zero；
If not, any one duration the first standard duration being set as between the 1-5 seconds.
5. according to arbitrary described method in Claims 1-4, it is characterised in that
Before the reception is using the power supply as the starting-up signal of the electrical equipment of power source, further include：
Reception makes the auxiliary power supply circuit start the voltage output signal of output voltage；
3rd control instruction is sent according to the voltage output signal, the overcurrent protection function for making the auxiliary power supply circuit is closed
Default second standard duration.
6. a kind of device for preventing over-current protection malfunction from making, is applied to power supply, it is characterised in that include：Receiving unit, function screen
Cover unit, the first judging unit and functional rehabilitation unit；
The receiving unit, for receiving the starting-up signal using the power supply as the electrical equipment of power source；
The functional shielding unit, for receiving the starting-up signal according to the receiving unit the first control instruction is sent,
To close the overcurrent protection function of auxiliary power supply circuit on the power supply；
First judging unit, for judging that the functional shielding unit closes whether the duration of the overcurrent protection function reaches
To default first standard duration；
The functional rehabilitation unit, for according to the judged result of first judging unit, if it is, send the second control referring to
Order, to recover the overcurrent protection function.
7. device according to claim 6, it is characterised in that further include：First default unit；
Described first default unit, for the capacity of each electric capacity according to included by the mainboard of the electrical equipment, Yi Jisuo
The output voltage of auxiliary power supply circuit is stated, the first standard duration is determined by equation below one；
The formula one includes：
Wherein, the T is the first standard duration, and the V is the output voltage of the auxiliary power supply circuit, and the k is institute
State the total number of the electric capacity included by the mainboard of electrical equipment, the CiFor i-th electric capacity on the mainboard of the electrical equipment
Capacity, the M is constant.
8. device according to claim 6, it is characterised in that further include：Second default unit；
Described second default unit, for according to the capacity of each electric capacity included on the mainboard of the electrical equipment, described
The duration of the output voltage of auxiliary power supply circuit and first control instruction, by equation below two described first is determined
Standard duration；
The formula two includes：
Wherein, the T is the first standard duration, and the V is the output voltage of the auxiliary power supply circuit, and the k is institute
State the total number of the electric capacity included by the mainboard of electrical equipment, the CiFor i-th electric capacity on the mainboard of the electrical equipment
Capacity, the t is the duration of first control instruction, and the N is constant.
9. device according to claim 6, it is characterised in that further include：3rd default unit；
Described 3rd default unit, for judging whether the electric current on the auxiliary power supply circuit is more than default critical value, such as
Fruit is that the first standard duration is set as into zero, is otherwise set as the first standard duration any one between the 1-5 seconds
Individual duration.
10. according to arbitrary described device in claim 6 to 9, it is characterised in that further include：Control unit；
The receiving unit, is further used for receiving the voltage output signal for making the auxiliary power supply circuit start output voltage；
Described control unit, the voltage output signal for being received according to the receiving unit sends the 3rd control and refers to
Order, the overcurrent protection function for making the auxiliary power supply circuit closes default second standard duration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710007361.2A CN106648020A (en) | 2017-01-05 | 2017-01-05 | Method and apparatus for preventing over-current protection malfunction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710007361.2A CN106648020A (en) | 2017-01-05 | 2017-01-05 | Method and apparatus for preventing over-current protection malfunction |
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Family
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|---|---|---|---|
| CN201710007361.2A Pending CN106648020A (en) | 2017-01-05 | 2017-01-05 | Method and apparatus for preventing over-current protection malfunction |
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| CN109828652A (en) * | 2018-12-26 | 2019-05-31 | 维沃移动通信有限公司 | The control method and terminal device of power consumption mode |
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Application publication date: 20170510 |