CN101752824A - Overload protection method, overload protection device and system for load - Google Patents
Overload protection method, overload protection device and system for load Download PDFInfo
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Abstract
The embodiment of the invention provides an overload protection method, an overload protection device and a system for loads. The overload protection method comprises the steps of detecting the information output by the output end of a current sharing control circuit in a thermal stand-by power source; determining whether the thermal stand-by power source is overloaded according to the detected information; and if the power supply of the thermal stand-by power source is overloaded, powering off the thermal stand-by power source. By detecting the information output from the output end of the current sharing control circuit, whether the power supply of the thermal stand-by power source is overloaded is determined according to the detected information, and the thermal stand-by power source is powered off if the power supply of the thermal stand-by power source is overloaded, thereby overcoming the defects of poor overload protection effect and low reliability of loads in the prior art, and effectively powering off the thermal stand-by power source when the power supply of loads is overloaded, thus effectively protecting loads from being damaged and improving the reliability of using the thermal stand-by power source on loads.
Description
Technical field
The present invention relates to electronic technology field, relate in particular to a kind of load overload protection method, overload protection arrangement and system.
Background technology
At present, when the higher storage system of reliability is powered, in order to improve the reliability that power supply uses, power supply adopts the supply power mode of hot stand-by power source usually, the instant heating stand-by power source is made up of the identical power module of a plurality of functions, the rated power of each power module is not less than the rated power of load, and all power modules were worked simultaneously when hot stand-by power source started.Wherein, be provided with equalizing control circuit in each power module, the output of each power module in hot stand-by power source together connects external loading when powering, the equalizing control circuit of each power module is electrically connected mutually, equalizing control circuit can be according to the current value of load, make the electric current of the average load sharing of each power module, thereby make each power module export the electric current of identical size.For example, comprise that with hot stand-by power source two power modules are example.During two power module operate as normal, equalizing control circuit will make half electric current of each power module burden load; When one of them power module broke down, all during operate as normal, each power module electric current was necessarily less than 50% of load rating value for two power modules.On hot stand-by power source fuse is set, plays effect to the load overload protection by fuse, another power module will power to the load alone, and the electric current in full of burden load.
Yet when the power supply overload appearred in hot stand-by power source, because the current precision that fuse can be controlled is lower, and fuse just can cut off the electricity supply after need fusing, and makes easily to load on damage when transshipping; In addition, because the power of power module is not less than the rated power of load, power module need surpass the load rating electric current at electric current just can start overload protection mechanism under the situation of twice at least.Therefore, load overload protection weak effect in the prior art, reliability is low.
Summary of the invention
The embodiment of the invention provides a kind of load overload protection method, overload protection arrangement and system; in order to improve the overload protection weak effect of load in the prior art; the defective that hot stand-by power source dependability in load is low improves the reliability that hot stand-by power source uses in load.
The embodiment of the invention provides a kind of overload protection method of load, comprising:
The information of equalizing control circuit output output in the hot stand-by power source of detection load;
Whether according to detected described information, determining that described hot stand-by power source powers to the load transships;
If described hot stand-by power source power supply overload is then closed described hot stand-by power source.
The embodiment of the invention provides a kind of overload protection arrangement, comprising:
Detection module is used for detecting the information of the hot stand-by power source equalizing control circuit output output of load;
Analysis module is used for according to detected described information, determines whether described hot stand-by power source power supply transships;
Processing module is used for if described hot stand-by power source power supply overload is then closed described hot stand-by power source.
The embodiment of the invention provides a kind of overload protective device, comprises load and hot stand-by power source, and the equalizing control circuit in each power module in the described hot stand-by power source interconnects, and also comprises aforesaid overload protection arrangement; Described hot stand-by power source is connected with described load, is used for to described electric; One end of described overload protection arrangement is connected with described equalizing control circuit output, and the other end of described overload protection arrangement is connected with described load.
The load overload protection method of the embodiment of the invention; overload protection arrangement and system; the information of the equalizing control circuit output output of the power module by detecting hot stand-by power source; and determine according to detected information whether the power supply of hot stand-by power source transships; and when hot stand-by power source power supply overload, close hot stand-by power source; improve hot stand-by power source overload protection weak effect in the prior art; the defective that reliability is low; can be effectively when hot stand-by power source power supply be transshipped; close hot stand-by power source; thereby protect load not to be damaged effectively, improved the reliability that hot stand-by power source uses in load.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done an introduction simply in will describing embodiment below, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is load overload protection method embodiment one flow chart of the present invention;
Fig. 2 A is load overload protection method embodiment two flow charts of the present invention;
Fig. 2 B is load overload protection method embodiment three flow charts of the present invention;
Fig. 3 A is hot stand-by power source power output figure;
Fig. 3 B is the voltage pattern of the equalizing control circuit output of power module in the hot stand-by power source;
Fig. 4 is an overload protection arrangement example structure schematic diagram of the present invention;
Fig. 5 is the hot stand-by power source example structure of a present invention schematic diagram;
Fig. 6 is the structural representation of overload protective device embodiment of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Fig. 1 is load overload protection method embodiment one flow chart of the present invention.As shown in Figure 1, present embodiment load overload protection method comprises:
The information of equalizing control circuit output output in the hot stand-by power source of step 100, detection load;
In the embodiment of the invention; the information that detects equalizing control circuit output output in the hot stand-by power source is by introducing the sharing control signal at equalizing control circuit; and then obtain equalizing control circuit output information in the hot stand-by power source; by certain time interval; detect the output information of equalizing control circuit; and determine according to detected information whether the power supply of hot stand-by power source transships; and when hot stand-by power source power supply overload, close all power modules in the hot stand-by power source; improve hot stand-by power source overload protection weak effect in the prior art; the defective that reliability is low; can be effectively when hot stand-by power source power supply be transshipped; the powered-down module; thereby effectively protect load not to be damaged, improved the reliability of hot stand-by power source.
Wherein, in embodiments of the present invention, determine hot stand-by power source power to the load whether transship be according to above-mentioned detected information judge hot stand-by power source to the power supply of load whether overcurrent realize.
Fig. 2 A is load overload protection method embodiment two flow charts of the present invention.Shown in Fig. 2 A, the hot stand-by power source overload protection method of present embodiment comprises:
The information setting of step 200, equalizing control circuit output output when load is in rated power is a pre-set threshold value.
Concrete, hot stand-by power source to the electric process in, pre-set threshold value is that load is under the situation of rated power, the information of equalizing control circuit output output.
Concrete, the detected information of present embodiment load overload protection method can be magnitude of voltage, pre-set threshold value can be the predeterminated voltage threshold values; Perhaps, information can be current value, and pre-set threshold value can be the predetermined current threshold values.Wherein, present embodiment load overload protection method is when magnitude of voltage that detects the equalizing control circuit output or current value; can detect according to default sense cycle; and the magnitude of voltage or the current value of the detection equalizing control circuit output that need not stop; reduce the number of times that detects, thereby helped improving the efficient of detection.Wherein, default sense cycle can be set according to actual needs, and the present invention does not limit the length of default sense cycle.
Concrete, present embodiment is that magnitude of voltage is an example with the information that detects the output of equalizing control circuit output, and present embodiment is described.Behind the magnitude of voltage that detects the equalizing control circuit output, whether the magnitude of voltage that analyzing and testing arrives is greater than the predeterminated voltage threshold values of equalizing control circuit output.Wherein, the predeterminated voltage threshold values of equalizing control circuit output is a hot stand-by power source when being in the load rating power rating, the magnitude of voltage of equalizing control circuit output.Wherein, the predeterminated voltage threshold values of this equalizing control circuit output can be learnt in the following way: mode one, be under the state of load rating power in load, detect the voltage of the equalizing control circuit output of power module in the hot stand-by power source and learn.Mode two, because the magnitude of voltage of hot stand-by power source output is changeless, according to the formula of rated output: power equals voltage and multiply by electric current as can be known, and the power and the electric current of hot stand-by power source output are linear.And the equalizing control circuit of each power module makes the current value in each power module keep identical in the hot stand-by power source, that is to say, current value in each equalizing control circuit is also identical, is equal to the 1/n (n is the number of power module in the hot stand-by power source) of hot stand-by power source output current.Simultaneously, resistance in the equalizing control circuit is constant, make the power of voltage in the equalizing control circuit and hot stand-by power source output linear, therefore, can be when detecting load and be in different capacity the magnitude of voltage of equalizing control circuit output, learn the predeterminated voltage threshold values of equalizing control circuit output when load is in rated power.Be specially, Fig. 3 A is hot stand-by power source power output figure, and Fig. 3 B is the voltage pattern of the equalizing control circuit output of power module in the hot stand-by power source.Shown in Fig. 3 A and Fig. 3 B, present embodiment is that 500W is an example with the rated power of load, and the predeterminated voltage threshold values that how to obtain the equalizing control circuit output is described.In the load running process, when the power of hot stand-by power source supply load is 250W, can detect the magnitude of voltage of equalizing control circuit output, the magnitude of voltage of ordering as A among Fig. 3 B; When the power of hot stand-by power source supply load is 375W, can detect the magnitude of voltage of equalizing control circuit output, the magnitude of voltage of ordering as B among Fig. 3 B.The voltage of ordering according to A point and B, can learn the linear relationship of the magnitude of voltage and the hot stand-by power source output power value of equalizing control circuit output, thereby can draw the predeterminated voltage threshold values of load equalizing control circuit output when being in rated power operation, the magnitude of voltage of ordering as C among Fig. 3 B.Wherein, the predetermined current threshold values of equalizing control circuit output also can be learnt by said method, does not repeat them here.
Further, in order more effective load to carry out overload protection to hot stand-by power source power supply, the wrong conclusion that draws the load overload that prevents each power module in the hot stand-by power source owing to there is current error, avoid frequent overload protection is carried out in load, so that load can move stably, step 202 in the present embodiment is preferably: if detected magnitude of voltage, is then determined hot stand-by power source power supply overload greater than k times of the predeterminated voltage threshold values; Perhaps, if detected current value, is then determined hot stand-by power source power supply overload greater than k times of the predetermined current threshold values; Wherein, the span of k is 1～1.5.
Wherein, in embodiments of the present invention, determine described hot stand-by power source power to the load whether transship be according to detected information judge hot stand-by power source to the power supply of load whether overcurrent realize.
Concrete, when loading on operate as normal, the electric current in the hot stand-by power source in each power module can not be identical completely, and there is some difference for possibility.Therefore, in order to determine more accurately whether hot stand-by power source the phenomenon of powering and transshipping occurs, when judging hot stand-by power source carries out whether occurring in the power supply process power supply overload to load, whether the magnitude of voltage of the equalizing control circuit output that step 202 arrives by analyzing and testing is greater than the k of the predeterminated voltage threshold values of equalizing control circuit output doubly, if the magnitude of voltage of equalizing control circuit output, is then determined hot stand-by power source power supply overload greater than k times of the predeterminated voltage threshold values of equalizing control circuit output.Equally, for the current value of detected equalizing control circuit output, can doubly compare with the k of the predetermined current threshold values of equalizing control circuit output.Wherein, the quantity relation in direct ratio of power module in the value of k and the hot stand-by power source, power module is many more, and the error that power module produces is big more, so the value of k is with corresponding increase, with the accuracy of guaranteeing to judge whether hot stand-by power source power supply transships.Present embodiment is that example describes with the predeterminated voltage threshold values, for example, can be 1.25 with the k value, then, can determine hot stand-by power source power supply overload when the magnitude of voltage that detects the equalizing control circuit output during greater than 1.25 times of the predeterminated voltage threshold values of equalizing control circuit output.Whether because detected magnitude of voltage and 1.25 times predeterminated voltage threshold values are compared, can judge more exactly that hot stand-by power source is powered transships.
Concrete, in the load normal course of operation, hot stand-by power source is because the phenomenon that immediate current surpasses the rated current of load can appear in the influence of external environment condition, but the electric current of load can recover normal again through immediate current after the of short duration buffering.In order to prevent when above-mentioned phenomenon occurring; hot stand-by power source frequent to the load overload protection of powering; present embodiment step 202 is being judged hot stand-by power source power supply overload, and time of state continuance that load is in the power supply overload during greater than default time, just closes hot stand-by power source.That is to say; hot stand-by power source is satisfying hot stand-by power source power supply overload; and satisfy simultaneously under the situation of time greater than the default time of state continuance that load is in power supply overload, just can close the power module in the hot stand-by power source, thereby reduce the overload protection of powering of load frequent.Wherein, the default time can determine that the present invention does not limit the length of default time according to the actual conditions of load.For example, it is 0.5 or 1 second that the default time can be set, and when hot stand-by power source is in the power supply overload above 1 second, then closes hot stand-by power source.Determine the hot stand-by power source overload of whether powering by the default time is set, can judge the load overload of whether really powering more accurately,, make the load can't operate as normal to prevent the overload protection of powering of load frequent.
Wherein, the hot stand-by power source overload protection method of the embodiment of the invention can be applied to using in the higher storage system of power reguirements, for example, and SSD hard disk or high-reliability storage equipment; Also can be applied on the user terminal of the phenomenon that can not occur cutting off the power supply and use, for example, equipment such as the server in the bank.
The hot stand-by power source overload protection method of the embodiment of the invention; the magnitude of voltage or the current value of the equalizing control circuit output by detecting power module; analyzing and testing to magnitude of voltage or current value to determine whether hot stand-by power source power supply transships; and when hot stand-by power source power supply overload, close power module in the hot stand-by power source; improve load overload protection weak effect in the prior art; the defective that reliability is low; can be effectively when hot stand-by power source power supply be transshipped; the powered-down module; thereby protect load not to be damaged effectively, improved the reliability of hot stand-by power source.By detect the magnitude of voltage or the current value of equalizing control circuit output according to default sense cycle, reduced the number of times that detects, thereby helped improving the efficient of detection.By with the k of the magnitude of voltage (or current value) of equalizing control circuit output and the predeterminated voltage threshold values of equalizing control circuit output doubly (or the k of predetermined current threshold values doubly) compare; to determine the hot stand-by power source overload of whether powering; can more effectively carry out overload protection to the load of hot stand-by power source power supply; avoid frequent overload protection is carried out in load, so that load can move stably.By transshipping in hot stand-by power source power supply; and hot stand-by power source is in time that the power supply overload continues during greater than default time; just close hot stand-by power source; can reduce the frequent overload protection of powering of hot stand-by power source; so that load can move stably, thereby more help improving the reliability of hot stand-by power source.
Fig. 2 B is load overload protection method embodiment three flow charts of the present invention.Shown in Fig. 2 B, present embodiment load overload protection method comprises:
The information setting of step 200, equalizing control circuit output output when load is in rated power is a pre-set threshold value.
Step 202 ', according to detected information, calculate the performance number of hot stand-by power source output, if the performance number of hot stand-by power source output, is determined hot stand-by power source power supply overload greater than the rated power of load; Perhaps,, calculate the current value of hot stand-by power source output, if the current value of hot stand-by power source output, is determined hot stand-by power source power supply overload greater than the rated current of load according to detected information.
Concrete, identical among the step 200 in the present embodiment, step 201 and step 203 and the embodiment two specifically can not repeat them here referring to the record among the embodiment two.Step 202 in the present embodiment ' by according to detected information, calculate the performance number of learning hot stand-by power source output; Compare by the performance number that will calculate and the power-handling capability of load, just can learn the hot power backup heat overload of whether powering easily.Equally, step 201 also can be calculated the current value of learning hot stand-by power source output by according to detected information; Compare by the current value that will calculate and the current threshold of load, just can learn the hot power backup heat overload of whether powering easily.Wherein, the detected information in the present embodiment can be magnitude of voltage or current value.In addition, present embodiment calculates the performance number of hot stand-by power source output or the method for current value, can be with reference to the method for calculating the threshold voltage of equalizing control circuit output in the aforesaid way two.Concrete, the performance number that magnitude of voltage that the performance number of the magnitude of voltage that can order according to A among Fig. 3 B and corresponding hot stand-by power source output and B orders and corresponding hot stand-by power source are exported draws the linear ratio relation's formula between the magnitude of voltage of equalizing control circuit output and the performance number that hot stand-by power source is exported.Behind the magnitude of voltage that detects the equalizing control circuit output, can learn the performance number of hot stand-by power source output according to linear ratio relation's formula, thereby the rated power of this performance number and load can be compared.Equally, draw the method for hot stand-by power source output current value, can not repeat them here referring to the method for the performance number of hot stand-by power source output.
The hot stand-by power source overload protection method of present embodiment, by information according to detected equalizing control circuit output output, the performance number or the current value of hot stand-by power source output learnt in calculating, thereby can be easily by the performance number of comparative heat stand-by power source output and the rated power size of load, learn the hot stand-by power source overload of whether powering; Equally, can be easily by the current value of comparative heat stand-by power source output and the size of current of load, learn the hot stand-by power source overload of whether powering.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Fig. 4 is an overload protection arrangement example structure schematic diagram of the present invention.As shown in Figure 4, the present embodiment overload protection arrangement comprises: detection module 1, analysis module 2 and processing module 3, wherein:
Detection module 1 is used for detecting the information of the hot stand-by power source equalizing control circuit output output of load;
Particularly, the detection module 1 in the present embodiment overload protection arrangement can detect the magnitude of voltage or the current value of the equalizing control circuit output of power module in the hot stand-by power source; Analysis module 2 will be analyzed detection module 1 detected magnitude of voltage or current value, determine whether hot stand-by power source power supply transships; The result that processing module 3 is analyzed according to analysis module 2 determines at analysis module 2 to close hot stand-by power source under the situation of hot stand-by power source power supply overload.Wherein, the present embodiment overload protection arrangement can be installed to the hot stand-by power source that is used for to the High Performance Cache and Memory System power supply; Also can be installed on the equipment of ask for something continued power.
The overload protection arrangement of the embodiment of the invention; detect the information of the equalizing control circuit output output of power module by detection module 1; and determine according to detected information whether the power supply of hot stand-by power source transships by analysis module 2; and processing module is closed power module in the hot stand-by power source when hot stand-by power source power supply overload; improve load overload protection weak effect in the prior art; the defective that reliability is low; can be effectively when hot stand-by power source power supply be transshipped; the powered-down module; thereby effectively protect load not to be damaged, improved the reliability that hot stand-by power source uses.
Based on technique scheme, optionally, the present embodiment overload protection arrangement also comprises setting module 4: the information setting of equalizing control circuit output output is a pre-set threshold value when being used for that load is in rated power.
Particularly, the setting module 4 in the present embodiment is used to set a pre-set threshold value so that pre-set threshold value supply analysis module 2 is used, by analysis module 2 according to pre-set threshold value with and detected information, determine the hot stand-by power source overload of whether powering.Wherein, pre-set threshold value is that load is under the situation of rated power, the information of equalizing control circuit output output.
The present embodiment overload protection arrangement by setting module is set, can be set a pre-set threshold value by setting module, thereby makes things convenient for analysis module to determine the hot stand-by power source overload of whether powering.
Based on technique scheme, optionally, the information in the present embodiment is magnitude of voltage, and pre-set threshold value is the predeterminated voltage threshold values; Perhaps, information is current value, and pre-set threshold value is the predetermined current threshold values; Analysis module 2 specifically is used for if detected magnitude of voltage, is then determined hot stand-by power source power supply overload greater than the predeterminated voltage threshold values; Perhaps, perhaps, analysis module 2 is used for if detected current value, is then determined hot stand-by power source power supply overload greater than the predetermined current threshold values.Concrete, whether the analysis module 2 in the present embodiment can bigger than the predeterminated voltage threshold values of equalizing control circuit output according to detection module 1 detected magnitude of voltage; If hot stand-by power source power supply overload then is described.Perhaps, whether analysis module 2 can bigger than the predetermined current threshold values of equalizing control circuit output according to detection module 1 detected current value; If hot stand-by power source power supply overload then is described.
Further, in order more effective load to carry out overload protection to hot stand-by power source power supply, the wrong conclusion that draws the load overload that prevents each power module in the hot stand-by power source owing to there is current error, avoid frequent overload protection is carried out in load, so that load can move stably, analysis module 2 in the present embodiment can also be used for if detected magnitude of voltage greater than the k of predeterminated voltage threshold values doubly, is then determined hot stand-by power source power supply overload; Perhaps, analysis module 2 can also be used for if detected current value greater than the k of predetermined current threshold values doubly, is then determined hot stand-by power source power supply overload; Wherein, the span of k is 1～1.5.Concrete, when loading on operate as normal, the electric current in the hot stand-by power source in each power module can not be identical completely, and there is some difference for possibility.Therefore, in order to determine by analysis module 2 whether hot stand-by power source the phenomenon of powering and transshipping occurs more accurately, when judging hot stand-by power source carries out whether occurring in the power supply process power supply overload to load, analysis module 2 doubly compares the k of detected magnitude of voltage and predeterminated voltage threshold values; Equally, analysis module 2 also can doubly compare the k of detected current value and predetermined current threshold values.Present embodiment is that example describes with the predeterminated voltage threshold values, for example, can be 1.25 with the k value, then, can determine hot stand-by power source power supply overload when the magnitude of voltage that detects the equalizing control circuit output during greater than 1.25 times of the threshold voltage of equalizing control circuit output.Whether because detected magnitude of voltage and 1.25 times predeterminated voltage threshold values are compared, can judge more accurately that hot stand-by power source is powered transships.
The present embodiment overload protection arrangement; analyze detection module 1 detected magnitudes of voltage relatively or current value whether greater than the threshold voltage or the current threshold of equalizing control circuit output by analysis module 2; determining the hot stand-by power source overload of whether powering, thereby can be easy to the power supply state of definite hot stand-by power source.In addition; analyze detection modules 1 detected magnitude of voltage (or current value) relatively whether greater than the k of the predeterminated voltage threshold values of equalizing control circuit output doubly (or the k of predetermined current threshold values doubly) by analysis module 2; to determine the hot stand-by power source overload of whether powering; can learn the power supply state of hot stand-by power source more accurately; avoid frequent overload protection is carried out in load, so that load can move stably.
Based on technique scheme, optionally, the analysis module 2 in the present embodiment can also be used for according to detected information, calculates the performance number of hot stand-by power source output, if the performance number of hot stand-by power source output, is determined hot stand-by power source power supply overload greater than the rated power of load; Perhaps, analysis module 2 can also be used for according to detected information, calculates the current value of hot stand-by power source output, if the current value of hot stand-by power source output, is determined hot stand-by power source power supply overload greater than the rated current of load.Concrete, the information in the present embodiment can be magnitude of voltage or current value.Analysis module 2 in the present embodiment can calculate the performance number of hot stand-by power source output according to detection module 1 detected magnitude of voltage or current value, and whether the performance number of judging hot stand-by power source output is greater than the rated power of load; If hot stand-by power source power supply overload then is described.Same, the analysis module 2 in the present embodiment can also calculate the current value of hot stand-by power source output according to detection module 1 detected magnitude of voltage or current value, and whether the current value of judging hot stand-by power source output is greater than the rated current of load; If hot stand-by power source power supply overload then is described.
The present embodiment overload protection arrangement, by magnitude of voltage or the current value of analysis module 2 according to detected equalizing control circuit output, the performance number or the current value of hot stand-by power source output learnt in calculating, thereby can be easily by the performance number of comparative heat stand-by power source output and the rated power size of load, learn the hot stand-by power source overload of whether powering; Equally, can be easily by the current value of comparative heat stand-by power source output and the size of current of load, learn the hot stand-by power source overload of whether powering.
Based on technique scheme, optionally, if the processing module 3 in the present embodiment can also be used for hot stand-by power source power supply overload, and hot stand-by power source is in time that the power supply overload continues during greater than default time, closes hot stand-by power source.Concrete; in order to prevent that hot stand-by power source from producing moment overload phenomenon because of external environment influence; and the frequent processing module 3 that load is carried out in the overload protection present embodiment is being judged hot stand-by power source power supply overload; and time of state continuance that hot stand-by power source is in power supply overload is just closed hot stand-by power source during greater than default time.
The present embodiment overload protection arrangement; transship in hot stand-by power source power supply by processing module; and hot stand-by power source is in time that the power supply overload continues during greater than default time; just close hot stand-by power source; can reduce the frequent overload protection of powering of hot stand-by power source; so that load can move stably, thereby more help improving the reliability of hot stand-by power source.
Based on technique scheme, optionally, the detection module 1 in the present embodiment can also be used for detecting according to default sense cycle the information of equalizing control circuit output output.Concrete, during the information of the equalizing control circuit output in detecting power module of the detection module 1 in the present embodiment, can detect according to default sense cycle, and the information of the detection equalizing control circuit output that need not stop output, reduce the number of times that detects, thereby helped improving the efficient of detection.
The present embodiment overload protection arrangement detects according to the information of default sense cycle to the output of equalizing control circuit output by detection module, thereby can reduce the number of times of detection, has improved the detection efficiency of detection module.
Wherein, the performance entity of the detection module in the overload protection arrangement 1 can be a testing circuit in the present embodiment; And analysis module 2 and processing module 3 can be integrated on the block analysis treatment circuit plate.For example, this testing circuit can be made up of follow circuit and amplifying circuit.Lower when signal voltage, do not satisfy the analyzing and processing circuit board section to voltage request the time, then by using amplifying circuit that detected voltage is handled; In order to make testing circuit have the direct current amplifying power, can add certain direct current biasing, thus live part that can more effective amplifying signal; Higher when voltage, in the time of can satisfying the requirement of analyzing and processing circuit board, only need to use the follow circuit detectable voltage signals.The different loads that this analyzing and processing circuit board can obtain according to testing circuit judges whether hot stand-by power source is to be in overload, and the analyzing and processing circuit board can be made up of amplifier and transistor, also can use multiple means such as single-chip microcomputer, FPGA (Field Programmable Gate Array) to realize.The embodiment of the invention does not limit the performance entity of detection module 1, analysis module 2 and processing module 3.
Fig. 5 is the hot stand-by power source example structure of a present invention schematic diagram.As shown in Figure 5, the hot stand-by power source of present embodiment comprises a plurality of power modules, equalizing control circuit in each power module interconnects, also comprise overload protection arrangement 20, wherein, overload protection arrangement 20 is the overload protection arrangement among the overload protection arrangement embodiment of the present invention; The detection module 201 of this overload protection arrangement 20 is connected with the equalizing control circuit output of power module, the processing module 203 of overload protection arrangement 20 and being connected of each power module.Wherein, the concrete structure of the overload protection arrangement 20 in the present embodiment can not repeat them here referring to the record of overload protection arrangement embodiment of the present invention and accompanying drawing 4.Wherein, the equalizing control circuit output in the present embodiment in each power module interconnects, thereby makes the information of each equalizing control circuit output output identical.
Particularly, present embodiment comprises that with hot stand-by power source first power module 101 and second source module 102 are that example describes.The power output end of first power module 101 and second source module 102 links together to load 30 power supplies, simultaneously in first power module 101 in the output 1011 of equalizing control circuit and the second source module 102 output 1021 of equalizing control circuit link together so that the average needed electric current of load sharing 30 of first power module 101 and second source module 102.Overload protection arrangement 20 comprises detection module 201, analysis module 202 and processing module 203, and the three is connected in turn.Detection module 201 respectively with first power module 101 in the output 1011 of equalizing control circuit be connected with the output 1021 of equalizing control circuit in the second source module 102, to detect magnitude of voltage or current value; Processing module 203 is connected with second source module 102 with first power module 101 respectively, with after confirming the hot stand-by power source power supply of present embodiment overload, closes first power module 101 and second source module 102.The hot stand-by power source of the present invention does not limit the quantity of power module.
The hot stand-by power source of the embodiment of the invention; detect the magnitude of voltage or the current value of the equalizing control circuit output of power module by the detection module in the overload protection arrangement; and by the analysis module analyzing and testing in the overload protection arrangement to magnitude of voltage or current value to determine whether hot stand-by power source power supply transships; and processing module is closed power module in the hot stand-by power source when hot stand-by power source power supply overload; improve hot stand-by power source overload protection weak effect in the prior art; the defective that reliability is low; can be effectively when hot stand-by power source power supply be transshipped; the powered-down module; thereby effectively protect load not to be damaged, improved the reliability of hot stand-by power source.
Fig. 6 is the structural representation of overload protective device embodiment of the present invention.As shown in Figure 6, the overload protective device that the embodiment of the invention provides comprises hot stand-by power source 601 and load 602, and the equalizing control circuit in each power module in the hot stand-by power source 601 interconnects; Wherein, also comprise overload protection arrangement 603; this overload protection arrangement 603 is the overload protection arrangement among the overload protection arrangement embodiment of the present invention, and its concrete structure can not repeat them here referring to the record of overload protection arrangement embodiment of the present invention and accompanying drawing 4 and Fig. 5.Hot stand-by power source 601 is connected with load 602, is used for to load 602 power supplies; One end of overload protection arrangement 603 is connected (not shown) with the equalizing control circuit output, and the other end of overload protection arrangement 603 is connected with load 602.
Particularly, the hot stand-by power source 601 in the present embodiment can avoid load 602 to damage because of hot stand-by power source 601 power supply overloads effectively by overload protection arrangement 603 protection loads 602 in the process of powering for load 602.Wherein, the overload protective device that provides of the embodiment of the invention can be high performance storage system, the equipment such as server higher to power reguirements.For example, be example with high performance storage system, system embodiment of the present invention is described.Load 602 in the present embodiment can be the contour performance storage device of SSD, and 601 pairs of loads 602 of hot stand-by power source are powered.When 601 pairs of loads of hot stand-by power source, 602 power supply overloads, overload protection arrangement 603 will cut out hot stand-by power source 601, thereby effectively protect load 602.
The overload protective device of the embodiment of the invention; detect the information of equalizing control circuit output output by the detection module of overload protection arrangement; analysis module determines according to detected information whether hot stand-by power source power supply transships; and when hot stand-by power source power supply overload, close hot stand-by power source; improve hot stand-by power source overload protection weak effect in the prior art; the defective that reliability is low; can be effectively when hot stand-by power source power supply be transshipped; the powered-down module; thereby effectively protect load not to be damaged, improved the reliability of hot stand-by power source.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a load overload protection method is characterized in that, comprising:
The information of equalizing control circuit output output in the hot stand-by power source of detection load;
Whether according to detected described information, determining that described hot stand-by power source powers to the load transships;
If described hot stand-by power source power supply overload is then closed described hot stand-by power source.
2. load overload protection method according to claim 1 is characterized in that, also comprises before the information of the output of equalizing control circuit output in the hot stand-by power source of described detection:
The information setting of described equalizing control circuit output output was a pre-set threshold value when load was in rated power, and wherein, described information is magnitude of voltage, and described pre-set threshold value is the predeterminated voltage threshold values; Perhaps, described information is current value, and described pre-set threshold value is the predetermined current threshold values;
Described according to detected described information, determine that described hot stand-by power source powers to the load whether to transship to comprise:
If described detected described magnitude of voltage, is then determined described hot stand-by power source power supply overload greater than described predeterminated voltage threshold values; Perhaps, if described detected described current value, is then determined described hot stand-by power source power supply overload greater than described predetermined current threshold values.
3. load overload protection method according to claim 2 is characterized in that, and is described if described detected described magnitude of voltage, is then determined described hot stand-by power source power supply overload greater than described predeterminated voltage threshold values; Perhaps, if, then determining described hot stand-by power source power supply overload greater than described predetermined current threshold values, described detected described current value comprises:
If described detected described magnitude of voltage, is then determined described hot stand-by power source power supply overload greater than k times of described predeterminated voltage threshold values; Perhaps, if described detected described current value, is then determined described hot stand-by power source power supply overload greater than k times of described predetermined current threshold values; Wherein, the span of k is 1～1.5.
4. load overload protection method according to claim 1 is characterized in that, if described hot stand-by power source power supply overload is then closed described hot stand-by power source and is comprised:
If described hot stand-by power source power supply overload, and described hot stand-by power source is in time that the power supply overload continues during greater than default time, closes described hot stand-by power source.
5. an overload protection arrangement is characterized in that, comprising:
Detection module is used for detecting the information of the hot stand-by power source equalizing control circuit output output of load;
Analysis module is used for according to detected described information, determines whether described hot stand-by power source power supply transships;
Processing module is used for if described hot stand-by power source power supply overload is then closed described hot stand-by power source.
6. overload protection arrangement according to claim 5 is characterized in that, also comprises:
Setting module: the information setting of described equalizing control circuit output output is a pre-set threshold value when being used for that load is in rated power.
7. according to the described overload protection arrangement of claim 5-6, it is characterized in that: described information is magnitude of voltage, and described pre-set threshold value is the predeterminated voltage threshold values; Perhaps, described information is current value, and described pre-set threshold value is the predetermined current threshold values;
When described information is magnitude of voltage, when described pre-set threshold value was the predeterminated voltage threshold values, described analysis module was used for if described detected described magnitude of voltage, is then determined described hot stand-by power source power supply overload greater than described predeterminated voltage threshold values; Perhaps,
When described information is current value, when described pre-set threshold value was the predetermined current threshold values, described analysis module was used for if described detected described current value, is then determined described hot stand-by power source power supply overload greater than described predetermined current threshold values.
8. overload protection arrangement according to claim 7 is characterized in that: described if described detected described magnitude of voltage, is then determined described hot stand-by power source power supply overload greater than described predeterminated voltage threshold values; Perhaps, if, then determining described hot stand-by power source power supply overload greater than described predetermined current threshold values, described detected described current value comprises:
If described detected described magnitude of voltage is greater than k times of described predeterminated voltage threshold values, described analysis module is used for determining described hot stand-by power source power supply overload; Perhaps,
If described detected described current value is greater than k times of described predetermined current threshold values, described analysis module is used for determining described hot stand-by power source power supply overload; Wherein, the span of k is 1～1.5.
9. overload protection arrangement according to claim 5; it is characterized in that: described processing module is used for when described hot stand-by power source power supply is transshipped; and described hot stand-by power source is in time that the power supply overload continues during greater than default time, closes described hot stand-by power source.
10. an overload protective device comprises load and hot stand-by power source, and the equalizing control circuit in each power module in the described hot stand-by power source interconnects, and it is characterized in that: also comprise arbitrary described overload protection arrangement as claim 5-9; Described hot stand-by power source is connected with described load, is used for to described electric; One end of described overload protection arrangement is connected with described equalizing control circuit output, and the other end of described overload protection arrangement is connected with described load.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010115395A CN101752824A (en) | 2010-02-09 | 2010-02-09 | Overload protection method, overload protection device and system for load |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010115395A CN101752824A (en) | 2010-02-09 | 2010-02-09 | Overload protection method, overload protection device and system for load |
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| CN101752824A true CN101752824A (en) | 2010-06-23 |
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| CN201010115395A Pending CN101752824A (en) | 2010-02-09 | 2010-02-09 | Overload protection method, overload protection device and system for load |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103543360A (en) * | 2013-10-29 | 2014-01-29 | 珠海许继芝电网自动化有限公司 | Method and system for monitoring repeated overload of power distribution network lines |
| CN106484022A (en) * | 2016-10-31 | 2017-03-08 | 广州视源电子科技股份有限公司 | Mainboard overvoltage protection method and system |
| CN107797047A (en) * | 2017-09-27 | 2018-03-13 | 深圳和而泰智能控制股份有限公司 | Load state detecting method, device and electronic equipment |
| CN107844185A (en) * | 2016-09-19 | 2018-03-27 | 华为数字技术（成都）有限公司 | A kind of method for managing power supply and device |
| CN109839525A (en) * | 2019-03-13 | 2019-06-04 | 深圳市鼎阳科技有限公司 | A kind of overpower protection method and protective device for electronic load |
| CN110318283A (en) * | 2019-07-16 | 2019-10-11 | 山鹰国际控股股份公司 | A kind of overload protective device for slurrying scalping |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103543360A (en) * | 2013-10-29 | 2014-01-29 | 珠海许继芝电网自动化有限公司 | Method and system for monitoring repeated overload of power distribution network lines |
| CN107844185A (en) * | 2016-09-19 | 2018-03-27 | 华为数字技术（成都）有限公司 | A kind of method for managing power supply and device |
| CN107844185B (en) * | 2016-09-19 | 2020-01-31 | 华为数字技术（成都）有限公司 | power supply management method and device |
| CN106484022A (en) * | 2016-10-31 | 2017-03-08 | 广州视源电子科技股份有限公司 | Mainboard overvoltage protection method and system |
| CN107797047A (en) * | 2017-09-27 | 2018-03-13 | 深圳和而泰智能控制股份有限公司 | Load state detecting method, device and electronic equipment |
| CN107797047B (en) * | 2017-09-27 | 2020-07-17 | 深圳和而泰智能控制股份有限公司 | Load state detection method and device and electronic equipment |
| CN109839525A (en) * | 2019-03-13 | 2019-06-04 | 深圳市鼎阳科技有限公司 | A kind of overpower protection method and protective device for electronic load |
| CN109839525B (en) * | 2019-03-13 | 2021-02-02 | 深圳市鼎阳科技股份有限公司 | Over-power protection method and protection device for electronic load |
| CN110318283A (en) * | 2019-07-16 | 2019-10-11 | 山鹰国际控股股份公司 | A kind of overload protective device for slurrying scalping |
| CN110318283B (en) * | 2019-07-16 | 2021-01-12 | 山鹰国际控股股份公司 | Overload protection system for pulping coarse screen |
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Application publication date: 20100623 |