CN104821628A - Super capacitor sound box device and control method - Google Patents
Super capacitor sound box device and control method Download PDFInfo
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- CN104821628A CN104821628A CN201510259698.3A CN201510259698A CN104821628A CN 104821628 A CN104821628 A CN 104821628A CN 201510259698 A CN201510259698 A CN 201510259698A CN 104821628 A CN104821628 A CN 104821628A
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Abstract
The invention provides a super capacitor sound box device and a control method. The device comprises a super capacitor module, a charging management module, a DC voltage stabilization module, a power amplification module, an audio decoding module and a loudspeaker. When the charging management module detects connection of an external DC power supply, the super capacitor module is controlled to stop providing power for the DC voltage stabilization module, and the external DC power supply is controlled to charge the super capacitor module. When connection of no external DC power supply is detected, the super capacitor module is controlled to provide power for the DC voltage stabilization module. The DC voltage stabilization module converts the external DC power supply into first voltage and second voltage, the first voltage provides power for the power amplification module, and the second voltage provides power for the audio decoding module. The audio decoding module decodes inputted audio and sends the audio to the power amplification module. The power amplification module drives the loudspeaker to play a sound. Compared with a lithium battery, the super capacitor has the advantages of being fast in charging and environmental friendly. In the case of full charging, use can be lasted for several hours, and the sound box can be truly portable.
Description
Technical field
The present invention relates to sound equipment power supply technique field, particularly a kind of super capacitor acoustics and control method.
Background technology
Along with the rise of Portable sound, portability is becoming a trend of electronic audio development, and battery becomes the key technology of restriction Portable sound development.
The power supply of current Portable sound device adopts lithium battery substantially.The portability of lithium battery and the larger advantage of energy density facilitate the rise of Portable sound.
But the fail safe of well-known lithium battery is poor, there is the risk of blast, and the charging interval is longer, is completely charged to few 3 hours.The life-span of lithium battery is also shorter in addition, and the number of times of degree of depth discharge and recharge is in theory less than 1000 times, large about 200 ~ 500 times in practical application, according to the custom useful life of namely 1 ~ 2 year of general user.Due to the general non-exchange battery of acoustics of sealing, namely just discard because of the decay of lithium battery less than 2 years Portable sounds.In addition, lithium battery contains various heavy composition, if waste treatment is improper will cause ill effect to environment.
To sum up, current sound equipment use lithium battery to exist as power supply fail safe is poor, the charging interval is longer, power source life is shorter and the problem of contaminated environment.
Therefore, those skilled in the art need to provide a kind of acoustics, can have the power supply that charging rate is very fast, fail safe better, the life-span is longer and free from environmental pollution, really realize the safe and convenient of Portable sound.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of super capacitor acoustics and control method, can have the power supply that charging rate is very fast, fail safe better, the life-span is longer and free from environmental pollution, realize the safe and convenient of Portable sound.
The embodiment of the present invention provides a kind of super capacitor acoustics, comprising: super capacitor module, charge management module, DC voltage-stabilizing module, power amplifier module, audio decoder module and loud speaker;
Described charge management module, during for having detected that external dc power accesses, controlling described super capacitor module and stopping as described DC voltage-stabilizing module for power supply, control external dc power is the charging of described super capacitor module simultaneously; Also for detect do not have external dc power to access time, controlling described super capacitor module is described DC voltage-stabilizing module for power supply;
Described DC voltage-stabilizing module, for being converted to the first voltage and the second voltage by described external dc power; Described first voltage is that described power amplifier module is powered, and described second voltage is described audio decoder module for power supply;
Described audio decoder module, sends to described power amplifier module after being decoded by the audio frequency of input;
Described power amplifier module, plays sound for driving described loud speaker.
Preferably, described super capacitor module comprises multiple super capacitor;
Described multiple super capacitor any one mode following connects:
Series, parallel or connection in series-parallel mixing.
Preferably, also comprise: the first voltage detection module and the first charge and discharge balancing control module;
Described first voltage detection module, for detecting the voltage at each super capacitor two ends, and sends to described first charge and discharge balancing control module by the voltage of detection;
Described first charge and discharge balancing control module, during for judging the voltage at super capacitor two ends more than the first reference voltage value, stops charging for this super capacitor; Described first reference voltage value is obtain described super capacitor sampling in advance.
Preferably, also comprise: the second voltage detection module and the second charge and discharge balancing control module;
Described second voltage detection module, for detecting the voltage sum of all super capacitors in described super capacitor module, and sends to described second charge and discharge balancing control module by the voltage sum of detection;
Described second charge and discharge balancing control module, during for judging described voltage sum more than the first scheduled voltage, cuts off the charging path of described charge management module and super capacitor module.
Preferably, described second charge and discharge balancing control module comprises: the first comparator and the first switching device;
Described first switching device is connected in the charging path of described charge management module and super capacitor module;
The first input end of described first comparator connects described first scheduled voltage, and the second input of described first comparator connects described voltage sum, and the output of described first comparator connects the control end of described first switching device; When described voltage sum exceedes described scheduled voltage, described in the signal controlling that described first comparator exports, the first switching device disconnects.
Preferably, also comprise: the first super capacitor logic judgment module, first and door and second switch device;
Described second switch devices in series is in the charging path of described charge management module and super capacitor module;
The corresponding described first super capacitor logic judgment module of each super capacitor, when the voltage of super capacitor is more than the second reference voltage value, corresponding described first super capacitor logic judgment module exports high level;
The output of all described first super capacitor logic judgment module connect described first with the input of door, the first control end being connected described second switch device with the output of door, when first exports high level with door, described second switch device disconnection.
Preferably, also comprise: the second super capacitor logic judgment module, first or door and the 3rd switching device;
Described 3rd switching device is connected in the charging path of described charge management module and super capacitor module;
The corresponding described second super capacitor logic judgment module of each super capacitor, when the voltage of super capacitor is more than the 3rd reference voltage value, corresponding described second super capacitor logic judgment module exports high level;
The output of all described second super capacitor logic judgment module connects the input of described first or door, described first or the output of door connect the control end of described 3rd switching device, when described first or door output high level, described 3rd switching device disconnects, automatically electric voltage equalization is carried out between each super capacitor in described super capacitor module, after electric voltage equalization, when described first or door output low level, described 3rd switching device closes.
The embodiment of the present invention also provides a kind of method controlling super capacitor and power to acoustics, comprising:
When having detected that external dc power accesses, control super capacitor module and stop powering for sound equipment; Control described external dc power is that sound equipment is powered simultaneously, and utilizes described external dc power to be the charging of described super capacitor module;
Detect that when not having external dc power to access, controlling described super capacitor module is that sound equipment is powered.
Preferably, when being the charging of described super capacitor module when utilizing described external dc power, also comprise:
Detect the voltage at each super capacitor two ends;
When judging the voltage at super capacitor two ends more than the first reference voltage value, stop charging for this super capacitor; Described reference voltage value is obtain described super capacitor sampling in advance.
Preferably, when being the charging of described super capacitor module when utilizing described external dc power, also comprise:
Detect the voltage sum of all super capacitors in described super capacitor module, when judging described voltage sum more than the first scheduled voltage, stop as all super capacitor chargings in described super capacitor module.
Preferably, when being the charging of described super capacitor module when utilizing described external dc power, also comprise:
Detect the voltage at each super capacitor two ends;
When judging the voltage of all super capacitors all more than the second reference voltage value, stop as all super capacitor chargings in described super capacitor module.
Preferably, when being the charging of described super capacitor module when utilizing described external dc power, also comprise:
Detect the voltage at each super capacitor two ends;
When judging to have the voltage of a super capacitor at least more than the 3rd reference voltage value, stop as all super capacitor chargings in described super capacitor module; Automatically carry out electric voltage equalization between each super capacitor in described super capacitor module, after electric voltage equalization, when not having the voltage of super capacitor to exceed described 3rd reference voltage value, all super capacitors continued as in described super capacitor module charge.
Compared with prior art, the present invention has the following advantages:
The present embodiment provides a kind of super capacitor acoustics, utilizes super capacitor to power to acoustics.Super capacitor has the feature of rapid charge, and the charging interval generally only has several minutes, goes out doubly a lot than the charging interval of lithium battery soon.And the process of this rapid charge belongs to physical process, safer than the chemical reaction of lithium battery, there is not the risk of blast.Further, the acoustics of the present embodiment can continue to use several hours after being full of electricity, can continue big current work, so both achieve the really portable of sound equipment, also ensure that the result of broadcast of sound equipment.In addition, the number of times that super capacitor can charge repeatedly reaches tens thousand of times, and far away higher than lithium battery, and the harmful substance contained in super capacitor is less, than lithium battery more environmental protection.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is super capacitor acoustics embodiment one schematic diagram provided by the invention;
Fig. 2 is super capacitor acoustics embodiment two schematic diagram provided by the invention;
Fig. 3 is super capacitor acoustics embodiment three schematic diagram provided by the invention;
Fig. 4 is super capacitor acoustics embodiment four schematic diagram provided by the invention;
Fig. 5 is super capacitor acoustics embodiment five schematic diagram provided by the invention;
Fig. 6 is embodiment of the method one flow chart provided by the invention;
Fig. 7 is embodiment of the method two flow chart provided by the invention;
Fig. 8 is embodiment of the method three flow chart provided by the invention;
Fig. 9 is embodiment of the method four flow chart provided by the invention;
Figure 10 is embodiment of the method five flow chart provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Device embodiment one:
See Fig. 1, this figure is super capacitor acoustics embodiment one schematic diagram provided by the invention.
The super capacitor acoustics that the present embodiment provides, comprising: super capacitor module 100, charge management module 200, DC voltage-stabilizing module 300, power amplifier module 400, audio decoder module 500 and loud speaker 600;
Described charge management module 200, during for having detected that external dc power accesses, control described super capacitor module 100 and stop powering for described DC voltage-stabilizing module 300, control external dc power is that described super capacitor module 100 charges simultaneously; Also for detect do not have external dc power to access time, control described super capacitor module 100 and power for described DC voltage-stabilizing module 300;
It should be noted that, external dc power can select voltage level according to the maximum voltage of super capacitor module.Generally can connect the external dc power of 9V-24V.
Described DC voltage-stabilizing module 300, for being converted to the first voltage and the second voltage by described external dc power; Described first voltage is that described power amplifier module 400 is powered, and described second voltage is that described audio decoder module 500 is powered;
Described audio decoder module 500, sends to described power amplifier module 400 after being decoded by the audio frequency of input;
Be understandable that, audio decoder module 500 can connect external audio source, also can connect the input of microphone, and its connection can adopt wired or wireless mode.
Described power amplifier module 400, plays sound for driving described loud speaker 600.
It should be noted that, the power amplifier module 400 in the embodiment of the present invention can preferred D class power amplifier module.
Be understandable that, what power amplifier module 400 drove is not limited only to single channel loud speaker, can configure multichannel loud speaker according to the requirement of acoustics.
The present embodiment provides a kind of super capacitor acoustics, utilizes super capacitor to power to acoustics.
Super capacitor has the charge-discharge performance more stable than lithium battery and better fail safe.Charge and discharge process due to super capacitor is completely reversibility, and period chemical reaction does not occur, and therefore the number of times of its cycle charge-discharge can reach tens thousand of times, and there is not any memory effect.The mechanical strength of super capacitor is high, and fail safe is fine, does not exist because overheated or clash into explosion caused risk.The longer service life of super capacitor in addition, the harmful substance contained is less, than lithium battery environmental protection more.
Therefore, utilize super capacitor as the power supply of sound equipment, Portable sound can be made really to realize safe and portable.Because acoustics all needs casing, just utilize this space to settle super capacitor module, circumvented the shortcoming that super capacitor volume is larger.Meanwhile, the charging rate of super capacitor is very fast, exceeds several times, generally only needs within several minutes, can be full of electricity, and can power several hours to sound equipment continuously than the charging interval of lithium battery.In addition, can continue heavy-current discharge in super capacitor power supply process, this meets the feature of speaker operation, ensure that the effect that sound equipment is play.
It should be noted that, described super capacitor module comprises multiple super capacitor;
Described multiple super capacitor any one mode following connects:
Series, parallel or connection in series-parallel mixing.
That is, the electric capacity in super capacitor module can be the series connection of multiple super capacitor, also can be that multiple super capacitor is in parallel, also can be the mixing of multiple super capacitor series and parallel connections.The voltage of series connection for improving super capacitor module, the capacity for increasing super capacitor module in parallel, can obtain the super capacitor module required for acoustics by various combination.
Device embodiment two:
See Fig. 2, this figure is super capacitor acoustics embodiment two schematic diagram provided by the invention.
The super capacitor acoustics that the present embodiment provides, also comprises: the first voltage detection module 700 and the first charge and discharge balancing control module 800;
Described first voltage detection module 700, for detecting the voltage at each super capacitor two ends, and sends to described first charge and discharge balancing control module 800 by the voltage of detection;
Described first charge and discharge balancing control module 800, during for judging the voltage at super capacitor two ends more than the first reference voltage value, stops charging for this super capacitor; Described first reference voltage value is obtain described super capacitor sampling in advance.
It should be noted that, the first reference voltage value is by carrying out voltage sample acquisition to super capacitor.
Carry out reference voltage sampling to super capacitor, according to the range of capacity of current super capacitor, generally choosing value in the scope of 2.4V ~ 2.8V, also can choose other fiducial values such as 1.25V.
The device that the present embodiment provides, protects single super capacitor, when the voltage at super capacitor two ends is more than the first reference voltage value, just stops continuing as this capacitor charging, can avoid single super capacitor overcharge like this.
In addition, it should be noted that, when super capacitor module comprises multiple super capacitor, when the super capacitor had is full of electricity, bypass electric discharge (near short circuit) of completely filling super capacitor can be utilized to continue as the super capacitor not being full of electricity and charge.
Device embodiment three:
See Fig. 3, this figure is super capacitor acoustics embodiment three schematic diagram provided by the invention.
The super capacitor acoustics that the present embodiment provides, also comprises: the second voltage detection module and the second charge and discharge balancing control module;
Described second voltage detection module, for detecting the voltage sum of all super capacitors in described super capacitor module, and sends to described second charge and discharge balancing control module by the voltage sum of detection;
Described second charge and discharge balancing control module, during for judging described voltage sum more than the first scheduled voltage Vref1, cuts off the charging path of described charge management module and super capacitor module.
A kind of specific implementation is introduced in citing below, as shown in Figure 3.
Described second charge and discharge balancing control module comprises: the first comparator U1 and the first switching device K1;
Described first switching device K1 is connected in the charging path of described charge management module and super capacitor module;
The first input end of described first comparator U1 connects described first scheduled voltage Vref1, and second input of described first comparator U1 connects described voltage sum, and the output of described first comparator U1 connects the control end of described first switching device K1; When described voltage sum exceedes described scheduled voltage, described in the signal controlling that described first comparator U1 exports, the first switching device K1 disconnects.
It should be noted that, the first switching device K1 can be relay, triode or metal-oxide-semiconductor.
As can be seen from Figure 3, the voltage sum of what second input of U1 (being normal phase input end in the present embodiment) connected the is super capacitor of series connection, when the voltage sum of the super capacitor of connecting is more than Vref1, U1 just exports high level, on the contrary output low level.When U1 exports high level, corresponding K1 disconnects.
Certainly can arrange as required when U1 output low level, K1 disconnects, and connects second input (i.e. normal phase input end) of U1 by Vref1, the voltage sum of the super capacitor of series connection is connected the first input end of U1.
It should be noted that, although after K1 disconnection, charge management module 200 no longer gives the charging of super capacitor module, still automatically carry out active voltage balancing between each super capacitor in super capacitor module.
The embodiment that Fig. 3 is corresponding is a kind of safeguard measure of carrying out whole super capacitor module, and concrete what adopt is voltage compare mode, below introduce two kinds of measures that whole super capacitor module is protected again in addition.
Device embodiment four:
See Fig. 4, this figure is super capacitor acoustics embodiment four schematic diagram provided by the invention.
The super capacitor acoustics that the present embodiment provides, also comprises: the first super capacitor logic judgment module, first and door A and second switch device K2;
Described second switch device K2 is connected in the charging path of described charge management module and super capacitor module 100;
The corresponding described first super capacitor logic judgment module of each super capacitor, when the voltage of super capacitor is more than the second reference voltage value, corresponding described first super capacitor logic judgment module exports high level;
As shown in Figure 4, when super capacitor module comprises n super capacitor, to n the first super capacitor logic judgment module should be had, be respectively the first super capacitor logic judgment module 1, first super capacitor logic judgment module 2 902, until the first super capacitor logic judgment module N90n.
The output of all described first super capacitor logic judgment module connects the input of described first and door A, first control end being connected described second switch device K2 with the output of door A, when first exports high level with door A, described second switch device K2 disconnects.
It should be noted that, second switch device K2 can selective relay, triode or metal-oxide-semiconductor.
As can be seen from Figure 4, only have when the first super capacitor logic judgment module that all super capacitors are corresponding all exports high level, first with door A just can export high level, as long as wherein there is a first super capacitor logic judgment module output low level, then first with door A just can output low level.Namely adopt the judgment mode of logical AND in the present embodiment, when only having all super capacitors all to complete charging, just super capacitor module 100 and charge management module 200 are disconnected.
It should be noted that, although after K2 disconnection, charge management module 200 charges no longer to super capacitor module 100, still automatically carry out active voltage balancing between each super capacitor in super capacitor module 100.
Device embodiment five:
See Fig. 5, this figure is super capacitor acoustics embodiment five schematic diagram provided by the invention.
The judgment mode of what embodiment corresponding to Fig. 4 adopted is logical AND, what adopt in the present embodiment is the judgment mode of logic OR, introduces its operation principle in detail below in conjunction with Fig. 5.
The super capacitor acoustics that the present embodiment provides, also comprises: the second super capacitor logic judgment module, first or door R and the 3rd switching device K3;
Described 3rd switching device K3 is connected in the charging path of described charge management module and super capacitor module 100;
The corresponding described second super capacitor logic judgment module of each super capacitor, when the voltage of super capacitor is more than the 3rd reference voltage value, corresponding described second super capacitor logic judgment module exports high level;
As shown in Figure 5, when super capacitor module 100 comprises n super capacitor, to there being n the second super capacitor logic judgment module, be respectively the second super capacitor logic judgment module 1, second super capacitor logic judgment module 2 1002, until the second super capacitor logic judgment module N100n.
The output of all described second super capacitor logic judgment module connects the input of described first or door R, described first or the output of door R connect the control end of described 3rd switching device K3, when described first or door R output high level, described 3rd switching device K3 disconnects, automatically electric voltage equalization is carried out between each super capacitor in described super capacitor module 100, after electric voltage equalization, when described first or door R output low level, described 3rd switching device K3 closes.
It should be noted that, the 3rd switching device K3 can selective relay, triode or metal-oxide-semiconductor.
As can be seen from Figure 5, as long as when the second super capacitor logic judgment module having super capacitor corresponding exports high level, first or door R will export high level now corresponding K3 will disconnect.
It should be noted that, although after K3 disconnection, charge management module 200 charges no longer to super capacitor module 100, still automatically carry out active voltage balancing between each super capacitor in super capacitor module 100.After equilibrium completes, all equal output low levels of the second super capacitor logic judgment module, now first or door R output low level again, K3 closes, charge management module 200 continues to charge to super capacitor module 100, so repeatedly charges several times, completes the charging to all super capacitors.
Provide not only the protected mode for single super capacitor in the embodiment of the present invention, but also provide the protected mode for whole super capacitor module 100, the duplicate protection mode arranged like this can protect the safety of super capacitor all sidedly.
Based on a kind of super capacitor acoustics that above embodiment provides, the embodiment of the present invention additionally provides a kind of method controlling super capacitor and power to acoustics, is described in detail below in conjunction with accompanying drawing.
Embodiment of the method one:
See Fig. 6, this figure is embodiment of the method one flow chart that control super capacitor provided by the invention is powered to acoustics.
The method that the control super capacitor that the present embodiment provides is powered to acoustics, comprising:
S601: when having detected that external dc power accesses, controls super capacitor module and stops powering for sound equipment; Control described external dc power is that sound equipment is powered simultaneously, and utilizes described external dc power to be the charging of described super capacitor module;
S602: detect that when not having external dc power to access, controlling described super capacitor module is that sound equipment is powered.
It should be noted that, external dc power can select voltage level according to the maximum voltage of super capacitor module.Generally can connect the external dc power of 9V-24V.
It should be noted that, in sound equipment except comprising super capacitor module, also comprise DC voltage-stabilizing module, audio decoder module, power amplifier module and loud speaker.
Described DC voltage-stabilizing module, for being converted to the first voltage and the second voltage by described external dc power; Described first voltage is that described power amplifier module is powered, and described second voltage is described audio decoder module for power supply;
Described audio decoder module, sends to described power amplifier module after being decoded by the audio frequency of input;
Be understandable that, audio decoder module can connect external audio source, also can connect the input of microphone, and its connection can adopt wired or wireless mode.
Described power amplifier module, plays sound for driving described loud speaker.
It should be noted that, the power amplifier module in the embodiment of the present invention can preferred D class power amplifier module.
Be understandable that, what power amplifier module drove is not limited only to single channel loud speaker, can configure multichannel loud speaker according to the requirement of acoustics.
It should be noted that, described super capacitor module comprises multiple super capacitor;
Described multiple super capacitor connects in any one mode following:
Series, parallel or connection in series-parallel mixing.
That is, the super capacitor in super capacitor module can be multiple capacitances in series, also can be that multiple super capacitor is in parallel, also can be the mixing of multiple super capacitor series and parallel connections.
Embodiment of the method two:
See Fig. 7, this figure is embodiment of the method two flow chart that control super capacitor provided by the invention is powered to acoustics.
S701 and S601 is identical, does not repeat them here.
The method that the present embodiment provides, also comprises:
S702: the voltage detecting each super capacitor two ends;
S703: when judging the voltage at super capacitor two ends more than the first reference voltage value, stops charging for this super capacitor; Described reference voltage value is obtain described super capacitor sampling in advance.
It should be noted that, the first reference voltage value is by carrying out real-time sampling acquisition to super capacitor.
Carry out reference voltage sampling to super capacitor, according to the range of capacity of current super capacitor, generally choosing value in the scope of 2.4V ~ 2.8V, also can choose other fiducial values such as 1.25V.
The method that the present embodiment provides, protects single super capacitor, when the voltage at super capacitor two ends is more than the first reference voltage value, just stops continuing as this capacitor charging, can avoid single super capacitor overcharge like this.
In addition, it should be noted that, when super capacitor module comprises multiple super capacitor, when the super capacitor had is full of electricity, bypass electric discharge (near short circuit) of completely filling super capacitor can be utilized to continue as the super capacitor not being full of electricity and charge.
Embodiment of the method three:
See Fig. 8, this figure is embodiment of the method three flow chart that control super capacitor provided by the invention is powered to acoustics.
S801 and S601 is identical, does not repeat them here.
The method that the present embodiment provides, also comprises:
S802: the voltage sum detecting all super capacitors in described super capacitor module, when judging described voltage sum more than the first scheduled voltage, stops as all super capacitor chargings in described super capacitor module.
It should be noted that, although stop as all super capacitor chargings in super capacitor module, between each super capacitor in super capacitor module, still automatically carry out active voltage balancing.
The method that the present embodiment provides is a kind of guard method carried out whole super capacitor module, and concrete what adopt is voltage compare mode, below introduce two kinds of methods that whole super capacitor module is protected again in addition.
Embodiment of the method four:
See Fig. 9, this figure is embodiment of the method four flow chart that control super capacitor provided by the invention is powered to acoustics.
S901 and S601 is identical, does not repeat them here.
The method that the present embodiment provides, also comprises:
S902: the voltage detecting each super capacitor two ends;
S903: when judging the voltage of all super capacitors all more than the second reference voltage value, stops as all super capacitor chargings in described super capacitor module.
The method that the present embodiment provides adopts logical AND judgment mode, only has when all super capacitors are all full of electricity, just stops charging to super capacitor module.
It should be noted that, although no longer give the charging of super capacitor module, between each super capacitor in super capacitor module, still automatically carry out active voltage balancing.
Embodiment of the method five:
See Figure 10, this figure is embodiment of the method five flow chart that control super capacitor provided by the invention is powered to acoustics.
S1001 and S601 is identical, does not repeat them here.
The method that the present embodiment provides, also comprises:
S1002: the voltage detecting each super capacitor two ends;
S1003: when judging to have the voltage of a super capacitor at least more than the 3rd reference voltage value, stops as all super capacitor chargings in described super capacitor module; Automatically carry out electric voltage equalization between each super capacitor in described super capacitor module, after electric voltage equalization, when not having the voltage of super capacitor to exceed described 3rd reference voltage value, all super capacitors continued as in described super capacitor module charge.
It should be noted that, although no longer give the charging of super capacitor module, between each super capacitor in super capacitor module, still automatically carry out active voltage balancing.When not having the voltage of super capacitor to exceed described 3rd reference voltage value, all super capacitors continued as in described super capacitor module charge.So repeatedly charge several times, complete the charging to all super capacitors.
Provide not only the protected mode for single super capacitor in the embodiment of the present invention, but also provide the protected mode for whole super capacitor module, the duplicate protection mode arranged like this can protect the safety of super capacitor all sidedly.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (12)
1. a super capacitor acoustics, is characterized in that, comprising: super capacitor module, charge management module, DC voltage-stabilizing module, power amplifier module, audio decoder module and loud speaker;
Described charge management module, during for having detected that external dc power accesses, controlling described super capacitor module and stopping as described DC voltage-stabilizing module for power supply, control external dc power is the charging of described super capacitor module simultaneously; Also for detect do not have external dc power to access time, controlling described super capacitor module is described DC voltage-stabilizing module for power supply;
Described DC voltage-stabilizing module, for being converted to the first voltage and the second voltage by described external dc power; Described first voltage is that described power amplifier module is powered, and described second voltage is described audio decoder module for power supply;
Described audio decoder module, sends to described power amplifier module after being decoded by the audio frequency of input;
Described power amplifier module, plays sound for driving described loud speaker.
2. super capacitor acoustics according to claim 1, is characterized in that, described super capacitor module comprises multiple super capacitor;
Described multiple super capacitor any one mode following connects:
Series, parallel or connection in series-parallel mixing.
3. super capacitor acoustics according to claim 2, is characterized in that, also comprise: the first voltage detection module and the first charge and discharge balancing control module;
Described first voltage detection module, for detecting the voltage at each super capacitor two ends, and sends to described first charge and discharge balancing control module by the voltage of detection;
Described first charge and discharge balancing control module, during for judging the voltage at super capacitor two ends more than the first reference voltage value, stops charging for this super capacitor; Described first reference voltage value is obtain described super capacitor sampling in advance.
4. the super capacitor acoustics according to claim 1 or 3, is characterized in that, also comprise: the second voltage detection module and the second charge and discharge balancing control module;
Described second voltage detection module, for detecting the voltage sum of all super capacitors in described super capacitor module, and sends to described second charge and discharge balancing control module by the voltage sum of detection;
Described second charge and discharge balancing control module, during for judging described voltage sum more than the first scheduled voltage, cuts off the charging path of described charge management module and super capacitor module.
5. super capacitor acoustics according to claim 4, is characterized in that, described second charge and discharge balancing control module comprises: the first comparator and the first switching device;
Described first switching device is connected in the charging path of described charge management module and super capacitor module;
The first input end of described first comparator connects described first scheduled voltage, and the second input of described first comparator connects described voltage sum, and the output of described first comparator connects the control end of described first switching device; When described voltage sum exceedes described scheduled voltage, described in the signal controlling that described first comparator exports, the first switching device disconnects.
6. the super capacitor acoustics according to claim 1 or 3, is characterized in that, also comprise: the first super capacitor logic judgment module, first and door and second switch device;
Described second switch devices in series is in the charging path of described charge management module and super capacitor module;
The corresponding described first super capacitor logic judgment module of each super capacitor, when the voltage of super capacitor is more than the second reference voltage value, corresponding described first super capacitor logic judgment module exports high level;
The output of all described first super capacitor logic judgment module connect described first with the input of door, the first control end being connected described second switch device with the output of door, when first exports high level with door, described second switch device disconnection.
7. the super capacitor acoustics according to claim 1 or 3, is characterized in that, also comprise: the second super capacitor logic judgment module, first or door and the 3rd switching device;
Described 3rd switching device is connected in the charging path of described charge management module and super capacitor module;
The corresponding described second super capacitor logic judgment module of each super capacitor, when the voltage of super capacitor is more than the 3rd reference voltage value, corresponding described second super capacitor logic judgment module exports high level;
The output of all described second super capacitor logic judgment module connects the input of described first or door, described first or the output of door connect the control end of described 3rd switching device, when described first or door output high level, described 3rd switching device disconnects, automatically electric voltage equalization is carried out between each super capacitor in described super capacitor module, after electric voltage equalization, when described first or door output low level, described 3rd switching device closes.
8. control the method that super capacitor is powered to acoustics, it is characterized in that, comprising:
When having detected that external dc power accesses, control super capacitor module and stop powering for sound equipment; Control described external dc power is that sound equipment is powered simultaneously, and utilizes described external dc power to be the charging of described super capacitor module;
Detect that when not having external dc power to access, controlling described super capacitor module is that sound equipment is powered.
9. the control super capacitor according to claim 8 method of powering to acoustics, is characterized in that, when being the charging of described super capacitor module when utilizing described external dc power, also comprises:
Detect the voltage at each super capacitor two ends;
When judging the voltage at super capacitor two ends more than the first reference voltage value, stop charging for this super capacitor; Described reference voltage value is obtain described super capacitor sampling in advance.
10. the control super capacitor according to claim 8 or claim 9 method of powering to acoustics, is characterized in that, when being the charging of described super capacitor module when utilizing described external dc power, also comprising:
Detect the voltage sum of all super capacitors in described super capacitor module, when judging described voltage sum more than the first scheduled voltage, stop as all super capacitor chargings in described super capacitor module.
The method that 11. control super capacitors are according to claim 8 or claim 9 powered to acoustics, is characterized in that, when being the charging of described super capacitor module when utilizing described external dc power, also comprises:
Detect the voltage at each super capacitor two ends;
When judging the voltage of all super capacitors all more than the second reference voltage value, stop as all super capacitor chargings in described super capacitor module.
The method that 12. control super capacitors are according to claim 8 or claim 9 powered to acoustics, is characterized in that, when being the charging of described super capacitor module when utilizing described external dc power, also comprises:
Detect the voltage at each super capacitor two ends;
When judging to have the voltage of a super capacitor at least more than the 3rd reference voltage value, stop as all super capacitor chargings in described super capacitor module; Automatically carry out electric voltage equalization between each super capacitor in described super capacitor module, after electric voltage equalization, when not having the voltage of super capacitor to exceed described 3rd reference voltage value, all super capacitors continued as in described super capacitor module charge.
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| CN201510259698.3A CN104821628A (en) | 2015-05-20 | 2015-05-20 | Super capacitor sound box device and control method |
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| CN201510259698.3A CN104821628A (en) | 2015-05-20 | 2015-05-20 | Super capacitor sound box device and control method |
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