CN101841232B - Redundancy backup processing method and redundancy backup control circuit of capacitor - Google Patents

Redundancy backup processing method and redundancy backup control circuit of capacitor Download PDF

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CN101841232B
CN101841232B CN2010101170868A CN201010117086A CN101841232B CN 101841232 B CN101841232 B CN 101841232B CN 2010101170868 A CN2010101170868 A CN 2010101170868A CN 201010117086 A CN201010117086 A CN 201010117086A CN 101841232 B CN101841232 B CN 101841232B
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power supply
fluctuation
circuit
fluctuation situation
situation
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CN101841232A (en
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何冲
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Beijing Star Net Ruijie Networks Co Ltd
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Beijing Star Net Ruijie Networks Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

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Abstract

The invention provides a redundancy backup processing method and a redundancy backup control circuit of a capacitor. The redundancy backup processing method of a capacitor comprises the following steps of: detecting the fluctuating condition of a power supply in a circuit; and automatically adding a backup filtering capacitor in the circuit according to the fluctuating condition of the power supply. The redundancy backup control circuit of a capacitor comprises a detecting module and a redundancy backup control module, wherein the detecting module is used for detecting the fluctuating condition of the power supply in the circuit; and the redundancy backup control module is used for automatically adding the backup filtering capacitor in the circuit according to the fluctuating condition of the power supply. The embodiment of the invention learns the backup filtering capacitor automatically added into the circuit when the filtering capacitor is invalid by detecting the fluctuating condition of the obtained power supply, thereby greatly reducing the maintenance cost and improving the integral performance of electronic equipment.

Description

Redundancy backup processing method and the control circuit thereof of electric capacity
Technical field
The embodiment of the invention relates to electronic technology field, relates in particular to a kind of redundancy backup processing method and control circuit thereof of electric capacity.
Background technology
Powerful gradually along with the function of electronic equipment, the integrated level of chip internal is also more and more higher, and the power consumption of chip also increases thereupon.For the power consumption that reduces chip, the operating efficiency that improves chip, the supply power voltage of chip becomes more and more lower.And under identical power consumption condition, the reduction of the supply power voltage of chip causes its supply current increasing, and the ability of its anti-noise jamming also reduces.Therefore, chip is more and more higher to the requirement of supply power voltage stability.
In the prior art, for the supply power voltage that makes chip tends towards stability, need to come part energy is stored with filter capacitor, with the burst changes in demand of reply electronic equipment to electric current.Because electric capacity has multiple different appearance value, it can store respectively the electric energy of different sizes, when power transfer module in time during the electric current demand of response change, the energy that filter capacitor will be stored in wherein discharges, and so just can avoid occurring the fluctuation of supply power voltage.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art: in actual use, the failure rate of filter capacitor is higher, especially compares with chip, its useful life is relatively low, then so that also be affected the useful life of electronic equipment.And in the prior art when filter capacitor lost efficacy, can only manually change repairing, manually replacing then needs to stop the use of electronic equipment, causes larger maintenance cost, so that the hydraulic performance decline of electronic equipment.
Summary of the invention
The embodiment of the invention provides a kind of redundancy backup processing method and control circuit thereof of electric capacity, in order to solve the problem of the maintenance cost increase of manually changing inefficacy electric capacity in the prior art and causing, realization is to the redundancy backup of filter capacitor, when losing efficacy, filter capacitor automatically filter capacitor for subsequent use was added in the circuit, greatly reduce maintenance cost, improved the overall performance of electronic equipment.
The embodiment of the invention provides a kind of redundancy backup processing method of electric capacity, comprising:
Fluctuation situation to power supply in the circuit detects;
Fluctuation situation according to described power supply adds filter capacitor for subsequent use automatically in described circuit;
Wherein, described fluctuation situation automatic adding filter capacitor for subsequent use in described circuit according to described power supply comprises:
In default timing statistics, the upset number of times of the fluctuation situation upset of described power supply is added up, the fluctuation situation upset of described power supply comprise described power supply from the normal condition to the fluctuation status, described power supply is from the fluctuation status to the normal condition;
When the upset number of times of statistics during greater than default upset number of times threshold value, in described circuit, automatically add filter capacitor for subsequent use.
The embodiment of the invention provides a kind of redundancy backup control circuit of electric capacity, comprising:
Detection module is used for the fluctuation situation of circuit power supply is detected;
The redundancy backup control module is used for automatically adding filter capacitor for subsequent use according to the fluctuation situation of described power supply at described circuit;
Wherein, described redundancy backup control module comprises:
The statistics submodule, be used in default timing statistics, upset number of times to the upset of the fluctuation situation of described power supply is added up, the fluctuation situation upset of described power supply comprise power supply from described normal condition to fluctuation status, described power supply is from the fluctuation status to the normal condition;
Redundancy backup control submodule is used for when the upset number of times of statistics during greater than default upset number of times threshold value, automatic adding filter capacitor for subsequent use in described circuit.
Redundancy backup processing method and the control circuit thereof of the electric capacity of the embodiment of the invention detect by the fluctuation situation to power supply in the circuit, according to fluctuation situation automatic adding filter capacitor for subsequent use in this circuit of the power supply that gets access to; Present embodiment has solved the problem of the maintenance cost increase of manually changing inefficacy electric capacity in the prior art and causing, realization is to the redundancy backup of filter capacitor, the fluctuation situation of the power supply that gets access to by detection was known when filter capacitor lost efficacy, in circuit, automatically add filter capacitor for subsequent use, greatly reduce maintenance cost, improved the overall performance of electronic equipment.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of the redundancy backup processing method embodiment one of electric capacity of the present invention;
Fig. 2 is the flow chart of the redundancy backup processing method embodiment two of electric capacity of the present invention;
Fig. 3 is the particular circuit configurations figure among the redundancy backup processing method embodiment two of electric capacity of the present invention;
Fig. 4 is the structural representation of the redundancy backup control circuit embodiment one of electric capacity of the present invention;
Fig. 5 is the structural representation of the redundancy backup control circuit embodiment two of electric capacity 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 obtains under the creative work prerequisite.
Fig. 1 is the flow chart of the redundancy backup processing method embodiment one of electric capacity of the present invention, and as shown in Figure 1, present embodiment provides a kind of redundancy backup processing method of electric capacity, can comprise the steps:
Step 101 detects the fluctuation situation of power supply in the circuit;
Step 102 is according to fluctuation situation automatic adding filter capacitor for subsequent use in described circuit of power supply.
Present embodiment provides a kind of redundancy backup processing method of electric capacity, detects by the fluctuation situation to power supply in the circuit, according to fluctuation situation automatic adding filter capacitor for subsequent use in this circuit of the power supply that gets access to; Present embodiment has solved the problem of the maintenance cost increase of manually changing inefficacy electric capacity in the prior art and causing, realization is to the redundancy backup of filter capacitor, the fluctuation situation of the power supply that gets access to by detection was known when filter capacitor lost efficacy, in circuit, automatically add filter capacitor for subsequent use, greatly reduce maintenance cost, improved the overall performance of electronic equipment.
Fig. 2 is the flow chart of the redundancy backup processing method embodiment two of electric capacity of the present invention, and as shown in Figure 2, present embodiment provides a kind of redundancy backup processing method of concrete electric capacity, can comprise the steps:
Step 201, the load voltage value of output loading in the Real-time Obtaining circuit.
In the present embodiment, when the fluctuation situation of power supply in the circuit is detected, by the detection of the load voltage value in the output loading in the circuit being obtained the fluctuation situation of power supply.This step detects the load voltage value of output loading in the circuit first, the load voltage value of Real-time Obtaining output loading.
Step 202 according to the described load voltage value of obtaining, default voltage fluctuation lower limit and default voltage fluctuation higher limit, detects the fluctuation situation of power supply in the described circuit, and obtains the fluctuation situation of described power supply.
After getting access to the load voltage value, according to this load voltage value, default voltage fluctuation lower limit and default voltage fluctuation higher limit, the fluctuation situation of power supply in the circuit is detected, and obtain the real-time fluctuation situation of power supply.Wherein, voltage fluctuation lower limit and voltage fluctuation higher limit can specifically be set according to the supply voltage of power supply, generally, the allowable fluctuation range of supply voltage is 5%, guarantees just when namely load voltage need to satisfy following relational expression (1) that supply voltage is stable:
(V out-ΔV)<V<(V out+ΔV) (1)
Wherein, Δ V=V Out* 5%, V is supply voltage.In the present embodiment, (V Out-Δ V) and (V Out+ Δ V) be two and be used for reference voltages relatively, it can produce by other power supplys, or carries out the multiple means such as dividing potential drop by battery and resistance and obtain, and it will be understood by those skilled in the art that certainly it can adopt other means to obtain.
Particularly, present embodiment is when obtaining the real-time fluctuation situation of power supply according to load voltage value, voltage fluctuation higher limit and voltage fluctuation lower limit, can be specially: when the load voltage value that gets access to greater than this voltage fluctuation higher limit, the load voltage value that perhaps gets access to is during less than this voltage fluctuation lower limit, and the fluctuation situation that gets access to power supply is in fluctuation status for this power supply.When the load voltage value that gets access to less than described voltage fluctuation higher limit, and the load voltage value that gets access to is during greater than this voltage fluctuation lower limit, the fluctuation situation that gets access to this power supply is that power supply is in normal condition.In addition, when the load voltage value that gets access to equaled the voltage fluctuation higher limit or equals the voltage fluctuation lower limit, the fluctuation situation that gets access to power supply was in normal condition for this this power supply.Namely when the load voltage value V that gets access to satisfies the condition of above-mentioned relation formula (1), the current normal condition that is in of this power supply, when the load voltage value V that gets access to does not satisfy the condition of above-mentioned relation formula (1), the current fluctuation status that is in of this power supply.Fig. 3 is the particular circuit configurations figure among the redundancy backup processing method embodiment two of electric capacity of the present invention, as shown in Figure 3, when the fluctuation situation to power supply detects, can specifically adopt the form of comparator to detect obtains, can adopt two comparators of comparator A and comparator B, and or the door process.Particularly, load voltage is input to "+" end of comparator A and "-" end of comparator B, "-" end input reference voltage (V of comparator A Out+ Δ V), comparator B "+" end input reference voltage (V Out-Δ V), comparator A and comparator B as a result K1 and K2 relatively is input to logic sum gate, from or the Output rusults of door namely can get access to the fluctuation situation of power supply.
When load voltage during greater than the voltage fluctuation higher limit, comparator A is output as 1, and when load voltage during less than the voltage fluctuation higher limit, comparator A is output as 0; When load voltage during less than the voltage fluctuation lower limit, comparator B is output as 1, and when load voltage during greater than the voltage fluctuation lower limit, comparator B is output as 0.Hence one can see that, when load voltage greater than the voltage fluctuation higher limit, or load voltage is during less than the voltage fluctuation lower limit, or the Output rusults of door is 1; When load voltage less than the voltage fluctuation higher limit, and load voltage is during greater than the voltage fluctuation lower limit, or the Output rusults of door is 0.Then pass through or door after, Output rusults is 1 to show that supply voltage is in fluctuation status, Output rusults is 0 to show that supply voltage is in normal condition.
Step 203 in default timing statistics, is added up the upset number of times that the fluctuation situation of described power supply is overturn.
After getting access to the fluctuation situation of power supply, because present embodiment is for obtaining in real time load voltage, the fluctuation situation of the power supply that then gets access to constantly may be different in difference, upset can appear in the fluctuation situation that is power supply, wherein, the fluctuation situation of power supply upset comprise power supply from the normal condition to the fluctuation status and power supply from the fluctuation status to the normal condition.This step upset number of times to the fluctuation situation upset of power supply in default timing statistics is added up, namely add up power supply within a period of time from the normal condition to the fluctuation status, and the upset number of times of power supply from the fluctuation status to the normal condition.As shown in Figure 3, specifically can be input in the counter by the output signal of general or door, come the upset number of times that the fluctuation situation of power supply is overturn is added up, when 0 to 1,1 to 0 variation namely occurring, the count value of counter adds 1 at every turn.And controller reads the count value of counter with some sufficiently high frequencies in timing statistics.
Further, after the upset number of times that the fluctuation situation of described power supply is overturn was added up, the method that present embodiment provides also comprised:, the upset number of times of statistics is carried out the zero clearing processing.When present embodiment is added up at the upset number of times that the fluctuation situation of power supply is overturn, for the upset number of times in the default timing statistics is added up, then with default timing statistics, the upset number of times of adding up is carried out zero clearing process.As shown in Figure 3, can come that the count value of counter is carried out zero clearing by controller and process, be specially controller and every default timing statistics the upset number of times of adding up is carried out the zero clearing processing.
Step 204 when the upset number of times of statistics during greater than default upset number of times threshold value, adds filter capacitor for subsequent use automatically in described circuit.
After the upset number of times of the fluctuation situation of power supply upset is added up, when the upset number of times in the timing statistics during greater than default upset number of times thresholding, in circuit, automatically add filter capacitor for subsequent use.Wherein, upset number of times threshold value can preset according to the actual conditions of circuit.Particularly, as shown in Figure 3, capacitor C 1 and C2 in the circuit represent original electric capacity, at the output of power module several filter capacitors for subsequent use in parallel, can comprise an electric capacity or a plurality of electric capacity in the filter capacitor for subsequent use in the present embodiment.In the present embodiment, can adopt a series of switches, come filter capacitor for subsequent use is controlled such as the s1 among Fig. 3, s2..., when certain switch cuts out, show that the filter capacitor for subsequent use that connects joins in the circuit.Controller is in the count value that gets access to counter during greater than default upset number of times threshold value, the fluctuation that then shows power supply is too violent, losing efficacy may appear in the filter capacitor in the primary circuit, the switch that controller links to each other with filter capacitor for subsequent use by control joins the filter capacitor of correspondence in the circuit automatically.Wherein, switch s1, s2... can be electronic switch, also can be relay, other switching devices that certainly can also be well known to those skilled in the art.Present embodiment carries out zero clearing to the count value of counter by controller in default timing statistics processes, and just add filter capacitor for subsequent use during greater than default upset number of times threshold value in count value, can effectively prevent because extraneous unexpected interference, the for example interference of thunder and lightning strong electric field in the thunderstorm weather, the perhaps suddenly fluctuation of public electric wire net voltage and the erroneous judgement that causes.The upset number of times of present embodiment in default timing statistics is during greater than upset number of times threshold value, split the pass by controller and drive control, the filter capacitor for subsequent use of correspondence is joined in the circuit automatically realizing, and need not to adopt the mode of manual replacing filter capacitor of the prior art.A plurality of filter capacitors for subsequent use are set in the present embodiment, when in circuit, adding filter capacitor for subsequent use, can add one or more filter capacitors for subsequent use according to the actual conditions of circuit, after adding to a filter capacitor for subsequent use in the circuit, still be in fluctuation status if detect the power supply of circuit, then by the controller driving switch, continuation adds the filter capacitor of other backup in circuit, until power supply is processed normal condition, then can be more accurate so that join capacitance and the quantity of the filter capacitor for subsequent use in the circuit.
Further, the method that present embodiment provides can also comprise: when the fluctuation situation of described power supply in described default timing statistics is continuously described fluctuation status, automatically add filter capacitor for subsequent use in described circuit.As shown in Figure 3, in the present embodiment, controller also to or the door output monitor, namely the fluctuation situation of power supply is monitored, in default timing statistics, when controller monitoring obtains or the output of door is continuously high level, the fluctuation situation that is power supply is continuously fluctuation status, when power supply is in fluctuation status always within a period of time, show that then original filter capacitor lost efficacy in the circuit, also automatically join filter capacitor for subsequent use in the circuit this moment.
Present embodiment provides a kind of redundancy backup processing method of electric capacity, detects by the fluctuation situation to power supply in the circuit, according to fluctuation situation automatic adding filter capacitor for subsequent use in this circuit of the power supply that gets access to; Present embodiment has solved the problem of the maintenance cost increase of manually changing inefficacy electric capacity in the prior art and causing, realization is to the redundancy backup of filter capacitor, the fluctuation situation of the power supply that gets access to by detection was known when filter capacitor lost efficacy, in circuit, automatically add filter capacitor for subsequent use, can effectively prolong the stabilization time of power supply, correspondingly prolong the useful life of electronic equipment, greatly reduce simultaneously maintenance cost, improved the overall performance of electronic equipment.
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: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Fig. 4 is the structural representation of the redundancy backup control circuit embodiment one of electric capacity of the present invention, as shown in Figure 4, present embodiment provides a kind of redundancy backup control circuit of electric capacity, and present embodiment can be carried out each step of said method embodiment one, repeats no more herein.The redundancy backup control circuit of the electric capacity that present embodiment provides can specifically comprise detection module 1 and redundancy backup control module 2.Wherein, detection module 1 is used for the fluctuation situation of circuit power supply is detected.Redundancy backup control module 2 is used for automatically adding filter capacitor for subsequent use according to the fluctuation situation of described power supply at described circuit.
Fig. 5 is the structural representation of the redundancy backup control circuit embodiment two of electric capacity of the present invention, as shown in Figure 5, present embodiment provides a kind of redundancy backup control circuit of electric capacity, each step that present embodiment can be carried out said method embodiment two repeats no more herein, and the physical circuit of the redundancy backup control circuit of the electric capacity that provides of present embodiment can be above-mentioned circuit shown in Figure 3.Present embodiment is on the basis of above-mentioned embodiment shown in Figure 4, and detection module 1 can specifically comprise and obtains submodule 11 and detection sub-module 12.Wherein, obtain the load voltage value that submodule 11 is used for the output loading of Real-time Obtaining circuit.Detection sub-module 12 is used for according to the described load voltage value of obtaining, default voltage fluctuation lower limit and default voltage fluctuation higher limit, the fluctuation situation of power supply in the described circuit is detected, and obtain the fluctuation situation of described power supply.
Particularly, detection sub-module 12 can comprise the first detecting unit 121 and the second detecting unit 122.Wherein, the first detecting unit 121 is used for working as described load voltage value greater than described voltage fluctuation higher limit, and when perhaps described load voltage value was less than described voltage fluctuation lower limit, the fluctuation situation that gets access to described power supply was that described power supply is in fluctuation status.The second detecting unit 122 be used for when described load voltage value less than described voltage fluctuation higher limit, and described load voltage value is during greater than described voltage fluctuation lower limit, the fluctuation situation that gets access to described power supply is that described power supply is in normal condition.
Further, the redundancy backup control module 2 in the present embodiment can specifically comprise statistics submodule 21 and redundancy backup control submodule 22.Wherein, statistics submodule 21 is used in default timing statistics, upset number of times to the upset of the fluctuation situation of described power supply is added up, the fluctuation situation upset of described power supply comprise described power supply from described normal condition to fluctuation status, described power supply is from the fluctuation status to the normal condition.Redundancy backup control submodule 22 is used for when the upset number of times of statistics during greater than default upset number of times threshold value, automatic adding filter capacitor for subsequent use in described circuit.
Further, redundancy backup in present embodiment control submodule 22 also is used for after the upset number of times of the fluctuation situation upset of described power supply is added up, and the upset number of times of described statistics is carried out zero clearing process.
Further, redundancy backup in present embodiment control submodule 22 also is used for when the fluctuation situation of described power supply in described default timing statistics is continuously described fluctuation status, automatic adding filter capacitor for subsequent use in described circuit.
Present embodiment provides a kind of redundancy backup control circuit of electric capacity, detects by the fluctuation situation to power supply in the circuit, according to fluctuation situation automatic adding filter capacitor for subsequent use in this circuit of the power supply that gets access to; Present embodiment has solved the problem of the maintenance cost increase of manually changing inefficacy electric capacity in the prior art and causing, realization is to the redundancy backup of filter capacitor, the fluctuation situation of the power supply that gets access to by detection was known when filter capacitor lost efficacy, in circuit, automatically add filter capacitor for subsequent use, can effectively prolong the stabilization time of power supply, correspondingly prolong the useful life of electronic equipment, greatly reduce simultaneously maintenance cost, improved the overall performance of electronic equipment.
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 puts 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 (11)

1. the redundancy backup processing method of an electric capacity is characterized in that, comprising:
Fluctuation situation to power supply in the circuit detects;
Fluctuation situation according to described power supply adds filter capacitor for subsequent use automatically in described circuit;
Wherein, described fluctuation situation automatic adding filter capacitor for subsequent use in described circuit according to described power supply comprises:
In default timing statistics, the upset number of times of the fluctuation situation upset of described power supply is added up, the fluctuation situation upset of described power supply comprise described power supply from the normal condition to the fluctuation status, described power supply is from the fluctuation status to the normal condition;
When the upset number of times of statistics during greater than default upset number of times threshold value, in described circuit, automatically add filter capacitor for subsequent use.
2. method according to claim 1 is characterized in that, described fluctuation situation to power supply in the circuit detects and comprises:
The load voltage value of output loading in the Real-time Obtaining circuit;
According to the described load voltage value of obtaining, default voltage fluctuation lower limit and default voltage fluctuation higher limit, the fluctuation situation of power supply in the described circuit is detected, and obtain the fluctuation situation of described power supply.
3. method according to claim 2, it is characterized in that, the described load voltage value that described basis is obtained, default voltage fluctuation lower limit and default voltage fluctuation higher limit detect the fluctuation situation of power supply in the described circuit, and the fluctuation situation of obtaining described power supply comprises:
When described load voltage value greater than described voltage fluctuation higher limit, when perhaps described load voltage value was less than described voltage fluctuation lower limit, the fluctuation situation that gets access to described power supply was that described power supply is in fluctuation status;
When described load voltage value less than described voltage fluctuation higher limit, and described load voltage value is during greater than described voltage fluctuation lower limit, the fluctuation situation that gets access to described power supply is that described power supply is in normal condition.
4. method according to claim 1 is characterized in that, after the described upset number of times that the fluctuation situation of described power supply is overturn is added up, also comprises:
Upset number of times to described statistics carries out the zero clearing processing.
5. method according to claim 1 is characterized in that, also comprises:
When the fluctuation situation of described power supply in described default timing statistics is continuously described fluctuation status, in described circuit, automatically add filter capacitor for subsequent use.
6. method according to claim 1 or 5 is characterized in that, describedly automatically adds filter capacitor for subsequent use comprise in described circuit:
By switch corresponding to filter capacitor for subsequent use controlled, so that described filter capacitor for subsequent use is joined in the described circuit automatically.
7. the redundancy backup control circuit of an electric capacity is characterized in that, comprising:
Detection module is used for the fluctuation situation of circuit power supply is detected;
The redundancy backup control module is used for automatically adding filter capacitor for subsequent use according to the fluctuation situation of described power supply at described circuit;
Wherein, described redundancy backup control module comprises:
The statistics submodule, be used in default timing statistics, upset number of times to the upset of the fluctuation situation of described power supply is added up, the fluctuation situation upset of described power supply comprise described power supply from the normal condition to the fluctuation status, described power supply is from the fluctuation status to the normal condition;
Redundancy backup control submodule is used for when the upset number of times of statistics during greater than default upset number of times threshold value, automatic adding filter capacitor for subsequent use in described circuit.
8. circuit according to claim 7 is characterized in that, described detection module comprises:
Obtain submodule, be used for the load voltage value of Real-time Obtaining circuit output loading;
Detection sub-module is used for according to the described load voltage value of obtaining, default voltage fluctuation lower limit and default voltage fluctuation higher limit, the fluctuation situation of power supply in the described circuit is detected, and obtain the fluctuation situation of described power supply.
9. circuit according to claim 8 is characterized in that, described detection sub-module comprises:
The first detecting unit is used for working as described load voltage value greater than described voltage fluctuation higher limit, and when perhaps described load voltage value was less than described voltage fluctuation lower limit, the fluctuation situation that gets access to described power supply was that described power supply is in fluctuation status;
The second detecting unit, be used for when described load voltage value less than described voltage fluctuation higher limit, and described load voltage value is during greater than described voltage fluctuation lower limit, the fluctuation situation that gets access to described power supply is that described power supply is in normal condition.
10. circuit according to claim 7 is characterized in that, described redundancy backup control submodule also is used for after the upset number of times of the fluctuation situation upset of described power supply is added up, and the upset number of times of described statistics is carried out zero clearing process.
11. circuit according to claim 7, it is characterized in that, described redundancy backup control submodule also is used for when the fluctuation situation of described power supply in described default timing statistics is continuously described fluctuation status, automatic adding filter capacitor for subsequent use in described circuit.
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CN106208310B (en) * 2016-07-27 2018-10-12 深圳佰维存储科技股份有限公司 More capacitance grading control systems and its method
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CN110086369B (en) * 2019-05-06 2021-01-08 阳光电源股份有限公司 Type selection method and evaluation method of direct current bus capacitor and application device thereof
CN110912491A (en) * 2019-10-08 2020-03-24 珠海格力电器股份有限公司 Servo motor control system and method based on capacitance control and servo driver

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