CN103997086B - Amplifier ultracapacitor formula battery power supply system - Google Patents
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Abstract
The invention discloses a kind of amplifier ultracapacitor formula battery power supply system, comprise supply module, it comprises alternately discharge and recharge and identical the first power supply of structure and second source, includes the bank of super capacitors of two groups of serial connections; Charging module, comprises positive and negative mains charger, and their power input connects external ac power source respectively, and the power output end of positive and negative mains charger connects positive and negative output port of power source and the common of first, second power supply respectively; Intelligent recharge and discharge control module, input gathers the charging and discharging state feedback information of charging module, and control signal output is control connection supply module and charging module respectively.The present invention realizes AC power by control circuit and to take turns discharge and recharge to first, second power supply, realizes the uninterrupted power supply to audio-frequency power amplifier, and stops the interference of mains to power amplifier completely, improve acoustical quality and realize HIFI function.The present invention is applicable to drive audio-frequency power amplifier work.
Description
Technical field
The invention belongs to rechargeable battery field, relate to a kind of ultracapacitor battery, specifically a kind of amplifier ultracapacitor formula battery power supply system.
Background technology
Audio-frequency power amplifier is from the extensive use of being born till now, and the history in existing century more than one, its performance also development upgrades.Along with the development of audio-frequency power amplifier technology, for the power supply technology of its power supply is also at development., at present, except for except the audio-frequency power amplifier of multimedia equipment, 220V civil power is mostly adopted to power, and when adopting 220V civil power to power, mostly need to carry out direct current conversion to alternating current, power again after utilizing bridge rectifier electric capacity to carry out filtering to direct current afterwards.
But, because existing current rectifying and wave filtering circuit cannot eliminate ripple voltage, therefore, to audio signal generation noise jamming in various degree, the performance of audio-frequency power amplifier can be affected.In addition, when audio-frequency power amplifier works, instantaneous power by audio signal affects very large, the fluctuation of its supply power voltage is also very large, cause audio signal distortion in various degree, directly affect the performance of audio-frequency power amplifier, therefore, be badly in need of improving the power supply of power audio amplifier, to meet the needs of its stable performance.
At present, be convenient for carrying because storage battery has, supply power voltage is by the minimum advantage of load effect, therefore, adopt storage battery to carry out power supply as power supply to audio-frequency power amplifier and become main flow, but also there is following shortcoming in existing storage battery: the charging interval is long, discharge and recharge number of times is few, can not excessively discharge and recharge, and can not be high temperature resistant, cold-resistant etc.Therefore, storage battery is restricted in the application of audio-frequency power amplifier for electrical domain and other fields.How to utilize storage battery to power well for audio-frequency power amplifier, become the technical barrier needing to capture.
Summary of the invention
The technical problem to be solved in the present invention, be to provide a kind of amplifier ultracapacitor formula battery power supply system, this system can prevent ripple voltage, reduce ripple to the impact of audio signal, improve the precision of audio signal, this electric power system also has automatic charge and discharge function simultaneously, and the charging interval is short, discharge and recharge often, and the advantage such as high temperature resistant, cold-resistant.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of amplifier ultracapacitor formula battery power supply system, it comprises
1. supply module
Described supply module comprises the first power supply and the second source of alternately discharge and recharge, and the first power supply is identical with second source structure, includes the bank of super capacitors of two groups of serial connections respectively as positive and negative power supply;
2. charging module
Described charging module comprises being respectively in first and second power supply and carries out as the bank of super capacitors of cathode power supply the positive supply charger that charges, and is respectively in first, second power supply and carries out as the bank of super capacitors of negative power supply the negative supply charger that charges;
The power input of described positive and negative mains charger connects external ac power source respectively, the power output end of positive supply charger connects the positive supply output port of first, second power supply and the common of supply module respectively, and the power output end of negative supply charger connects the negative supply output port of first, second power supply and the common of supply module respectively;
3. intelligent recharge and discharge control module
The signal input part of intelligent recharge and discharge control module gathers the charging and discharging state feedback information of charging module, and control signal output is control connection supply module and charging module respectively, and then controls the alternately discharge and recharge of first, second power supply.
Restriction as to intelligent recharge and discharge control module:
Described intelligent recharge and discharge control module comprises the main control unit as control centre, for gathering first, the information acquisition unit of the charging and discharging state feedback information of second source, driver element, and electronic switch unit, wherein, the signal input part of described information acquisition unit receives the charging and discharging state feedback information of positive-negative power charger, signal output part connects the signal input part of main control unit, the control signal output of main control unit is connected for controlling first by driver element, second source replaces the electronic switch unit of discharge and recharge, described electronic switch unit is control connection supply module and charging module respectively.
Further restriction as to intelligent recharge and discharge control module:
Described electronic switch unit comprises the first ~ eight electronic switch; First, second electronic switch is corresponding to be respectively serially connected with on the discharge line of positive and negative power supply of the first power supply; Three, the 4th electronic switch is corresponding is respectively serially connected with on the discharge line of positive and negative power supply of second source; Five, on the 6th electronic switch circuit that the corresponding positive supply to first, second power supply being serially connected with positive supply charger charges respectively; Seven, on the 8th electronic switch circuit that the corresponding negative supply to first, second power supply being serially connected with negative supply charger charges respectively;
Described driver element comprises electronic switch drive circuit, and the signal input part of described electronic switch drive circuit connects the pulse signal output end of main control unit, the control end of signal output part control connection the first ~ eight electronic switch of electronic switch drive circuit.
Further restriction as to intelligent recharge and discharge control module:
Described electronic switch drive circuit comprises control circuit, and provides the power circuit of power drives for control circuit,
The signal input part of described control circuit connects the pulse signal output end of pulse signal generating circuit, and the power drives input of control circuit connects the power output end of power circuit.
Restriction as to supply module:
The positive supply of described first power supply is the first bank of super capacitors, and negative supply is the second bank of super capacitors,
The positive supply of second source is the 3rd bank of super capacitors, and negative supply is the 4th bank of super capacitors,
Described first bank of super capacitors is connected with the second bank of super capacitors; 3rd bank of super capacitors is connected with the 4th bank of super capacitors; The output that the positive pole of the first bank of super capacitors is connected in series with the first diode, the first electronic switch, and the output that the positive pole of the 3rd bank of super capacitors is connected in series with the 3rd diode, the 3rd electronic switch is jointly as the positive supply output of supply module; The output that the negative pole of the second bank of super capacitors is connected in series with the second diode, the second electronic switch, and the output that the negative pole of the 4th bank of super capacitors is connected in series with the 4th diode, the 4th electronic switch is jointly as the negative supply output of supply module; The negative pole of the first bank of super capacitors, the 3rd bank of super capacitors is connected the common as supply module with the positive pole of the second bank of super capacitors, the 4th bank of super capacitors;
The first, the positive pole of the 3rd bank of super capacitors also connects two charging outputs of positive supply charger respectively, the second, the negative pole of the 4th bank of super capacitors also connects two charging outputs of negative supply charger respectively, and the common of positive and negative mains charger is connected with the common of supply module.
Further restriction as to supply module:
The structure of described first ~ four bank of super capacitors is identical, include the ultracapacitor of several serial connections, and each ultracapacitor two ends of the first ~ four bank of super capacitors is parallel with overvoltage crowbar respectively.
Further restriction as to supply module:
Described supply module also comprises the load capacitance of two serial connections, for the first energy storage electrochemical capacitor and the second energy storage electrochemical capacitor of series connection, the series circuit that described first energy storage electrochemical capacitor and the second energy storage electrochemical capacitor are formed is connected in parallel on the two ends of the first power supply, second source, first energy storage electrochemical capacitor is connected with the positive and negative output of supply module respectively with the two ends of the second energy storage electrochemical capacitor sequential circuit, and the first energy storage electrochemical capacitor is connected with the common of supply module with the intermediate node of the second energy storage electrochemical capacitor series circuit.
As aligning, the restriction of negative supply charger:
Described positive supply charger is identical with the structure of negative supply charger, includes PMW controller, constant current charger, charging overvoltage protection and charging and discharging state testing circuit; The input of described PWM controller connects external ac power source, the input of positive power signal output serial connection constant current charger, the output of constant current charger connects the positive-negative power end of first, second power supply by the electronic switch of serial connection, and the negative power signal output that PWM controls it connects the earth terminal of first, second power supply;
Described charging overvoltage protection and charging and discharging state testing circuit are connected to common and the charging end of positive supply charger and negative supply charger.
To sum up, owing to have employed above-mentioned technical scheme, compared with prior art, acquired technological progress is in the present invention:
(1) supply module of the present invention is provided with two power supplys, automatic charge and discharge can be replaced under the control of intelligent recharge and discharge control module, audio-frequency power amplifier is replaced, Non-intermittent powers, ensure the functional reliability of audio-frequency power amplifier application circuit, and directly do not use outside 220V AC power, can ripple voltage be eliminated, reduce ripple voltage to the impact of audio signal;
(2) first, second power supply forms by bank of super capacitors serial connection, therefore, first, second power supply has that capacitance is large, charging is fast, discharge and recharge often, the advantage such as high temperature resistant, cold-resistant;
(3) the single ultracapacitor in the bank of super capacitors of first, second power supply is formed by the ultracapacitor of serial connection, each ultracapacitor two ends are all parallel with overvoltage crowbar, therefore, supply module of the present invention can not damage because of excessive charge and discharge;
(4) first to fourth bank of super capacitors are equipped with overvoltage crowbar, can make first, second power supply output class voltage that seemingly powered battery is equally constant, ensure as audio-frequency power amplifier provides constant driving voltage.
In sum, structure of the present invention is simple, it is convenient to control, realize AC power by control circuit to take turns to charge to first, second power supply, and then realize making first, second power supply at any one time in turn to the power supply of audio-frequency power amplifier, realize the ultralow internal resistance voltage stabilizing output function of direct-flow storage battery formula simultaneously, and stop the interference of mains to power amplifier completely, improve acoustical quality and realize HIFI function.
The present invention is applicable to drive audio-frequency power amplifier work.
The present invention is described in further detail below in conjunction with Figure of description and specific embodiment.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the embodiment of the present invention;
Fig. 2 is the circuit theory diagrams of the embodiment of the present invention;
Fig. 3 is the bank of super capacitors schematic diagram be in series by N number of ultracapacitor in the embodiment of the present invention;
Fig. 4 is the circuit diagram of the pressure limited protection circuit forming single ultracapacitor in bank of super capacitors in the embodiment of the present invention;
Fig. 5 is the circuit diagram of overvoltage protection and charging state detection circuit in bank of super capacitors in the embodiment of the present invention;
Fig. 6 is the circuit diagram of discharging headlamp circuit in bank of super capacitors in the embodiment of the present invention;
When Fig. 7 is bank of super capacitors electric discharge in the embodiment of the present invention, the time dependent curve synoptic diagram of voltage in time t;
Fig. 8 is the waveform schematic diagram of the pulse signal that in the embodiment of the present invention, pulse signal generating circuit produces.
In figure: 1 ~ supply module, 2 ~ charging module, 21 ~ positive supply charger, 22 ~ negative supply charger, 3 ~ intelligent recharge and discharge control module, 31 ~ main control unit, 32 ~ information acquisition unit, 33 ~ driver element, 41 ~ control circuit, 42 ~ power circuit.
Embodiment
embodimenta kind of amplifier ultracapacitor formula battery power supply system
The present embodiment is a kind of amplifier ultracapacitor formula battery power supply system, and with reference to figure 1, it comprises:
(1) supply module 1
Supply module 1 comprises the first power supply and the second source of alternately discharge and recharge, and the first power supply is identical with second source structure, includes two groups of bank of super capacitors respectively as positive and negative power supply.Concrete structure is as shown in Figure 2:
First power supply comprises the first bank of super capacitors C1 and the second bank of super capacitors C2 of serial connection, wherein the negative pole of the first bank of super capacitors C1 is connected with the positive pole of the second bank of super capacitors C2, the positive pole of the first bank of super capacitors C1 is by the first diode D1, as the positive pole of the first power supply after first electronic switch M1 exports, the negative pole of the second bank of super capacitors C2 is by the 3rd diode D3, as the negative pole of the first power supply after second electronic switch M2 exports, the positive pole of the first bank of super capacitors C1 is also as the charging input end A1 of self simultaneously, the negative pole of the second bank of super capacitors C2 is as the charging input end A2 of self.
Second source comprises the 3rd bank of super capacitors C3 and the 4th bank of super capacitors C4 of serial connection, wherein the negative pole of the 3rd bank of super capacitors C3 is connected with the positive pole of the 4th bank of super capacitors C4, the positive pole of the 3rd bank of super capacitors C3 is by the 5th diode D5, as the positive pole of second source after 3rd electronic switch M3 exports, the negative pole of the 4th bank of super capacitors C4 is by the 7th diode D7, as the negative pole of second source after 4th electronic switch M4 exports, the positive pole of the first bank of super capacitors C1 is also as the charging input end A1 of self simultaneously, the negative pole of the second bank of super capacitors C2 is as the charging input end A2 of self.
And the first power supply and the positive pole of second source are connected the cathode output end+VCC as supply module 1 jointly, first power supply is connected the cathode output end-VCC as supply module 1 jointly with the negative pole of second source, the negative pole of the first bank of super capacitors C1, the 3rd bank of super capacitors C3 respectively with the positive pole junction of the second bank of super capacitors C2, the 4th bank of super capacitors C4 common B as supply module 1.
The structure of the first above-mentioned bank of super capacitors C1, the second bank of super capacitors C2, the 3rd bank of super capacitors C3, the 4th bank of super capacitors C4 is also identical, include the ultracapacitor of several serial connections, several ultracapacitors described are connected in series successively as shown in Figure 3 and form corresponding bank of super capacitors, what often organize in the present embodiment that bank of super capacitors C1 ~ C4 all adopts is that 20 ultracapacitors serial connections form, in the specific implementation, supply voltage required for audio-frequency power amplifier the number of serial connected super capacitor can be selected.
First to fourth above-mentioned electronic switch M1 ~ M4 structure is also identical, all adopts a diode and a MOS switching device to form.For the first electronic switch M1, comprise the first metal-oxide-semiconductor, second diode D2, the anode of the second diode D2 is connected with the source electrode of the first metal-oxide-semiconductor, the negative electrode of the second diode D2 is connected with the drain electrode of the first metal-oxide-semiconductor, the drain electrode of described first metal-oxide-semiconductor connects the positive pole of the first bank of super capacitors C1 by the first diode D1, if source electrode connects supply module 1 positive supply output+VCC(but the inner diode being integrated with reverse parallel connection drain-source two ends of the MOS switching device used, be connected in parallel on drain electrode in figure can omit with the diode at source electrode two ends, this example adopts general mode namely to think needs to be connected in parallel on the diode at drain-source two ends).Second electronic switch M2 is then made up of the 4th diode D4, the second metal-oxide-semiconductor; 3rd electronic switch M3 is then made up of the 6th diode D6, the 3rd metal-oxide-semiconductor; 4th electronic switch M4 is then made up of the 8th diode D8, the 4th metal-oxide-semiconductor, and in second to the 4th electronic switch M2 ~ M4, the annexation of each device is consistent with the annexation of each device in the first electronic switch M1.
And in order to ensure the charging safety of each ultracapacitor in bank of super capacitors C1 ~ C4, the identical pressure limited protection circuit of structure is all parallel with at the two ends of each ultracapacitor, described pressure limited protection circuit as shown in Figure 4, comprise the switching circuit that PNP triode Q1 and the 4th resistance R4 is formed, and pressurizer first pressurizer DW1, first resistance R1, second resistance R2, the first reference voltage circuit that 3rd resistance R3 is formed, the reference edge of described first voltage-stabiliser tube DW1 is connected with the connection mid point of the second resistance R2 with the first resistance R1, the base stage of the direct connecting triode Q1 of intermediate node that the negative electrode of described first voltage-stabiliser tube DW1 is connected with the 3rd resistance R3, the emitter of triode Q1 is by the 4th resistance R4 and the second resistance R2, the 3rd resistance R3 other end is separately connected and the collector electrode of himself and the other end of the 5th resistance R5, the tie point of the anode of the first voltage-stabiliser tube DW1 is as two outputs of pressure limited protection circuit, connect the two ends of each ultracapacitor in each bank of super capacitors C1 ~ C4.
(2) charging module 2
Charging module 2 is for charging to the first power supply in supply module 1 and second source.Described charging module 2 comprises being respectively in first and second power supply and carries out as the bank of super capacitors of cathode power supply the positive supply charger 21 that charges, and is respectively in first, second power supply and carries out as the bank of super capacitors of negative power supply the negative supply charger 22 that charges.
The power input of described positive supply charger 21, negative supply charger 22 connects external ac power source respectively, the power output end of positive supply charger 21 connects positive pole port A1, A2 of first, second power supply and the common B of supply module 1 respectively, and the power output end of negative supply charger 22 connects negative pole port A3, A4 of first, second power supply and the common B of supply module 1 respectively.
The structure of above-mentioned positive supply charger 21, negative supply charger 22 is identical, includes PWM controller, constant current charger, two electronic switches and two charging overvoltage protections and charging and discharging state detection module.For positive supply charger 21; as shown in Figure 2; it comprises the first PWM controller PWM1, the first constant current charger U1, the 5th electronic switch M5 and the 6th electronic switch M6, the first overvoltage protection and charging and discharging state detection module and the second overvoltage protection and charging and discharging state detection module.The input of the first PWM controller PWM1 connects outside 220V AC power, cathode output end ground connection, also connect the common B of supply module 1 simultaneously, cathode output end connects the input of the first constant current charger U1, the output of the first constant current charger U1 connects the A1 end of supply module 1 by the 5th electronic switch M5, connected the A2 end of supply module 1 by the 6th electronic switch M6 simultaneously.The output of negative supply charger 22 connects A3 end, the A4 end of supply module 1 and common B respectively.First overvoltage protection and charging and discharging state detection module are attempted by port A1, B two ends, and the second overvoltage protection and charging and discharging state detection module are attempted by port A2, B two ends.
Correspondingly; negative supply charger 22 comprises the second PWM controller PWM2; second constant current charger U2, the 7th electronic switch M7 and the 8th electronic switch M8; 3rd overvoltage protection and charging and discharging state detection module and the 4th overvoltage protection and charging and discharging state detection module, the annexation between each component is corresponding to the annexation of positive supply charger 21.
Wherein, the circuit diagram of the first overvoltage protection and charging and discharging state detection module and the second overvoltage protection and charging and discharging state detection module is the circuit shown in Fig. 5, Fig. 6:
Described overvoltage protection and charging state detection circuit adopt structure as shown in Figure 5: comprise the second pressurizer DW2, 5th resistance R5, the second reference voltage circuit that 6th resistance R6 is formed, first photoelectrical coupler QA1, and the 7th resistance R7 of current limliting and the 8th resistance R8, wherein the second reference voltage circuit is identical with the first reference voltage-stabilizing circuit structure, difference is, described second voltage-stabiliser tube DW2 and the light-emitting diode being connected in series the first photoelectrical coupler QA1 between the 7th resistance R7, the collector electrode of the phototriode of the first photoelectrical coupler QA1 detects output C as charged state, emitter is connected with the digitally end of main control unit, and the collector electrode of the phototriode of the first photoelectrical coupler QA1 is connected with the power supply of main control unit 31 by the 8th resistance R8 of serial connection, the output of the contact of the points of common connection of the 6th resistance R6 and the 7th resistance R7 and the 5th resistance R5 and the second pressurizer DW2 anode overvoltage protection and charging state detection circuit is as a whole connected to the two ends of each bank of super capacitors C1 ~ C4.
Described discharging headlamp circuit adopts structure as shown in Figure 6: comprise pressurizer the 3rd pressurizer DW3, 9th resistance R9, the 3rd reference voltage circuit that tenth resistance R10 is formed, second photoelectrical coupler QA2, and the 11 resistance R11 of current limliting and the 12 resistance R12, wherein the 3rd reference voltage circuit is identical with the second reference voltage-stabilizing circuit structure, the collector electrode of the phototriode of the second photoelectrical coupler QA2 is connected with the power supply of main control unit 31, emitter is as discharging headlamp output D, and be connected with the digitally end of main control unit 31 by the 12 resistance R12, tenth resistance R10, 11 resistance R11 points of common connection and the 9th resistance R9, the contact of the 3rd pressurizer DW3 anode is connected to the two ends of each bank of super capacitors C1 ~ C4 as the output of discharging headlamp circuit.
First to the 3rd voltage-stabiliser tube DW1 ~ DW3 in above-mentioned Fig. 4 to Fig. 6 in the first to the 3rd reference voltage circuit all adopts adjustable accurate shunt regulator tube LMV431, and itself and reference resistance connected mode are the mode of connection common in prior art.
And above-mentioned in the 5th to the 8th electronic switch M5 ~ M8 identical with the structure of first to fourth electronic switch M1 ~ M4, form by a diode and a MOS device, annexation is the output of the source electrode connection constant current charger of MOS device, drain electrode connects the charging input end of supply module 1, with MOS device and the diode anode connect connects the source electrode of MOS device, negative electrode connects the drain electrode of MOS device, grid received pulse control signal.
(3) intelligent recharge and discharge control module 3
The signal input part of intelligent recharge and discharge control module 3 gathers the charging and discharging state feedback information of charging module 2, and control signal output controls the alternately discharge and recharge of first, second power supply in supply module 1.
Described intelligent recharge and discharge control module 3 comprises the main control unit 31 as control centre, and gathers the information acquisition unit 32 of positive and negative mains charger signal respectively.
The signal output part of described information acquisition unit 32 connects the signal output part of main control unit 31.The control signal output of main control unit 31 connects the first to fourth electronic switch M1 ~ M4 being used for first, second power supply alternating discharge of control connection by driver element 33, go back the 5th to the 8th electronic switch M5 ~ M8 in control connection positive supply charger 21, negative supply charger 22 simultaneously.
Main control unit 31 in the present embodiment adopts PC controller, information acquisition unit 32 adopts digital level identification of the prior art, to delivering in PC controller after the logic level identifying processing of first to fourth overvoltage protection charging and discharging state detection module feedback, above-mentioned four overvoltage protections and charging detecting circuit and four discharge detection circuits form four overvoltage protections and charging and discharging state detection module, the two ends of described overvoltage protection and charging and discharging state detection module are connected between the A end of supply module 1 and B hold, i.e. the first bank of super capacitors C1, second bank of super capacitors C2, 3rd bank of super capacitors C3, the two ends of the 4th bank of super capacitors C4 respectively and be connected to the overvoltage protection of said structure and charging detecting circuit and discharge detection circuit.The detection feedback information end vf of four overvoltage protections and charging and discharging state detection module connects the signal input part of PC controller respectively.
Driver element 33 then comprises pulse signal generating circuit and electronic switch drive circuit, as shown in Figure 1, owing to having eight electronic switch M1 ~ M8 in the present embodiment, has therefore selected and has exported the PC controller of eight pulse signals as pulse signal generating circuit; Electronic switch drive circuit comprises control circuit 41 and provides the power circuit 42 of power drives for control circuit, concrete structure as shown in Figure 2, described control circuit 41 correspondence is provided with eight tunnels, the structure on every road is all identical, all adopt the 3rd photoelectrical coupler QA3, wherein in the 3rd photoelectrical coupler QA3, the anode of light-emitting diode connects the pulse signal output end S of pulse signal generating circuit
vGthe negative electrode of light-emitting diode connects the digitally end of main control unit 31 by the 14 resistance R14, the collector electrode of the phototriode of the 3rd photoelectrical coupler QA3 connects the signal output part of power circuit 42, emitter connects the source electrode of MOS device in respective electronic switch by the 13 resistance R13, and the emitter of phototriode is also as the grid of MOS device in output connection first to the 8th electronic switch M1 ~ M8 of control signal simultaneously.
Power circuit 42 then adopts transformer coupled one-tenth to organize alternating voltage more, the separate direct voltage VDD1 ~ VDD8 in eight tunnels is obtained again, the voltage VDD of transistor collector input in the second photoelectrical coupler QA2 in corresponding No. eight control circuits 41 of this eight roads direct voltage difference through rectifying and wave-filtering.
The specific works principle of the present embodiment is: the wiring of the present embodiment according to Fig. 2 connected, and by+VCC, common B and-VCC are connected the positive power source terminal of the audio-frequency power amplifier that outside need drives respectively, ground end and negative power end, eight group pulse signals are produced by program control PC controller, because the present embodiment produces eight group pulse signals, and eight group pulse signals control first by its corresponding the first ~ eight electronic switch M1 ~ M8 controlled, the discharge and recharge in turn of second liang of group power supply, therefore, PC controller control wave is also corresponding is divided into two groups, control first respectively, the discharge and recharge in turn of second source, be specially: one group of four pulse signal drives the first electronic switch M1, second electronic switch M2, 5th electronic switch M5, 7th electronic switch M7, another group four pulse signals drive the 3rd electronic switch M3, 4th electronic switch M4, 6th electronic switch M6, 8th electronic switch M8.Such as initial first power supply is powered, second source charges, first of the pulse signal order correspondence that PC controller exports, second, 6th, 8th electronic switch M1, M2, M6, M8 conducting, the 3rd of order correspondence, 4th, 5th, 7th electronic switch M3, M4, M5, M7 disconnects, in this time period, first power supply is by first of conducting, second electronic switch M1, M2 powers to power amplifier, positive-negative power charger 21, 22 by the 6th of conducting, 8th electronic switch M6, M8 charges to second source, the first power outage when the both end voltage of the first power supply drops to the magnitude of voltage of setting, start charging, change second source to power, now, PC controller then controls the 3rd, 4th, 5th, 7th electronic switch M3, M4, M5, M7 conducting, and make first, second, 6th, 8th electronic switch M1, M2, M6, M8 closes.
Be determined by the width of pulse signal owing to taking turns discharge and recharge time length to one of first, second power supply, and the width of pulse signal is controlled by the program in PC controller, the maintenance of therefore charge and discharge state is until impulse level changes.Under normal circumstances, eight group pulse signals are periodic rectangular ripple, as shown in the timing chart of Fig. 8, control opening with closed of corresponding electronic switch by the change of waveform.Concrete control procedure is: waveform is timing, the electronic switch conducting of place Waveform Control, when waveform is zero, and the electronic switch closes of place Waveform Control.When power source charges; in a wave period; the both ends of power voltage of charging reaches set point and waveform when also not changing; be connected in parallel on the overvoltage crowbar conducting at bank of super capacitors two ends; charged state detects output C and produces low level, and feedback information delivers to PC controller, and PC controller sends the electronic switch that instruction positive closing charging controls; make the bank of super capacitors of charging stop charging, thus reach the object of protection power source and overvoltage crowbar.Equally when bank of super capacitors both end voltage do not reach magnitude of voltage is set and have single ultracapacitor both end voltage to reach its rated voltage in bank of super capacitors time; the overvoltage crowbar conducting being connected in parallel on single ultracapacitor two ends makes charging current flow through overvoltage crowbar and stop charging to this ultracapacitor, thus reaches the object protecting single ultracapacitor.
When corona discharge, the time dependent schematic diagram of super capacitor group both end voltage as shown in Figure 7, if in a wave period, the both ends of power voltage of electric discharge reaches electric discharge minimum voltage set point and waveform when also not changing, discharging headlamp output D produces low level, feedback information delivers to PC controller, PC controller sends the electronic switch of this corona discharge of instruction positive closing control and the electronic switch of another group power source charges control, and send instruction closedown just at the discharge control switch of discharge power supply, open charged electrical switch, open the electric discharge electronic switch of another group power supply simultaneously, realize two groups of power supplys and exchange charging and discharging state.
And the first diode D1, the 3rd diode D3 of one-way conduction that arrange in the present embodiment supply module 1, the 5th diode D5, the 7th diode D7 are when ensure that one of them Power supply, prevent the power supply of powering to the power source charges of charging, can not ensure that power supply independently works.
At power supply by discharge condition to charged state, and when discharge condition switches, there is a Dead Time by charged state, as Fig. 8 timing chart is depicted as △ t, in this section of Dead Time, first, second source is not all powered to audio-frequency power amplifier, in order to reach the object being continuously external audio power amplifier and powering, the supply module 1 of the present embodiment is also provided with load capacitance, comprise the first energy storage electrochemical capacitor CP of series connection, second energy storage electrochemical capacitor CN, described first energy storage electrochemical capacitor CP, the series circuit of the second energy storage electrochemical capacitor CN is respectively at the first power supply, second source is in parallel, and power output end during its power supply is identical with the output of supply module 1.Owing to being provided with energy storage electrochemical capacitor, when first, second power supply is in Dead Time, powered by the audio-frequency power amplifier of load capacitance to outside.
Claims (10)
1. an amplifier ultracapacitor formula battery power supply system, is characterized in that it comprises:
1. supply module
Described supply module comprises the first power supply and the second source of alternately discharge and recharge, and the first power supply is identical with second source structure, includes the bank of super capacitors of two groups of serial connections respectively as positive and negative power supply;
2. charging module
Described charging module comprises being respectively in first and second power supply and carries out as the bank of super capacitors of positive supply the positive supply charger that charges, and is respectively in first, second power supply and carries out as the bank of super capacitors of negative supply the negative supply charger that charges;
The power input of described positive and negative mains charger connects external ac power source respectively, the power output end of positive supply charger connects the positive supply output port of first, second power supply and the common of supply module respectively, and the power output end of negative supply charger connects the negative supply output port of first, second power supply and the common of supply module respectively;
3. intelligent recharge and discharge control module
The signal input part of intelligent recharge and discharge control module gathers the charging and discharging state feedback information of charging module, and control signal output is control connection supply module and charging module respectively, and then controls the alternately discharge and recharge of first, second power supply.
2. amplifier ultracapacitor formula battery power supply system according to claim 1,
it is characterized in that:
Described intelligent recharge and discharge control module comprises the main control unit as control centre, for gathering the information acquisition unit of first, second power supply charging and discharging state feedback information, driver element, and electronic switch unit;
The signal input part of described information acquisition unit receives the charging and discharging state feedback information of positive-negative power charger, and signal output part connects the signal input part of main control unit;
The control signal output of main control unit connects the electronic switch unit replacing discharge and recharge for controlling first, second power supply by driver element;
Described electronic switch unit is control connection supply module and charging module respectively.
3. amplifier ultracapacitor formula battery power supply system according to claim 2,
it is characterized in that:
Described electronic switch unit comprises the first ~ eight electronic switch;
First, second electronic switch is corresponding to be respectively serially connected with on the discharge line of positive and negative power supply of the first power supply; Three, the 4th electronic switch is corresponding is respectively serially connected with on the discharge line of positive and negative power supply of second source; Five, on the 6th electronic switch circuit that the corresponding positive supply to first, second power supply being serially connected with positive supply charger charges respectively; Seven, on the 8th electronic switch circuit that the corresponding negative supply to first, second power supply being serially connected with negative supply charger charges respectively;
Described driver element comprises electronic switch drive circuit, and the signal input part of described electronic switch drive circuit connects the pulse signal output end of main control unit, the control end of signal output part control connection the first ~ eight electronic switch of electronic switch drive circuit.
4. amplifier ultracapacitor formula battery power supply system according to claim 3,
it is characterized in that:
Described electronic switch drive circuit comprises control circuit, and provides the power circuit of power drives for control circuit,
The signal input part of described control circuit connects the pulse signal output end of pulse signal generating circuit, and the power drives input of control circuit connects the power output end of power circuit.
5. amplifier ultracapacitor formula battery power supply system as claimed in any of claims 1 to 4,
it is characterized in that:
The positive supply of described first power supply is the first bank of super capacitors, and negative supply is the second bank of super capacitors,
The positive supply of second source is the 3rd bank of super capacitors, and negative supply is the 4th bank of super capacitors,
Described first bank of super capacitors is connected with the second bank of super capacitors; 3rd bank of super capacitors is connected with the 4th bank of super capacitors; The output that the positive pole of the first bank of super capacitors is connected in series with the first diode, the first electronic switch, and the output that the positive pole of the 3rd bank of super capacitors is connected in series with the 3rd diode, the 3rd electronic switch is jointly as the positive supply output of supply module; The output that the negative pole of the second bank of super capacitors is connected in series with the second diode, the second electronic switch, and the output that the negative pole of the 4th bank of super capacitors is connected in series with the 4th diode, the 4th electronic switch is jointly as the negative supply output of supply module; The negative pole of the first bank of super capacitors, the 3rd bank of super capacitors is connected the common as supply module with the positive pole of the second bank of super capacitors, the 4th bank of super capacitors;
The first, the positive pole of the 3rd bank of super capacitors also connects two charging outputs of positive supply charger respectively, the second, the negative pole of the 4th bank of super capacitors also connects two charging outputs of negative supply charger respectively, and the common port of positive and negative mains charger is connected with the common of supply module.
6. amplifier ultracapacitor formula battery power supply system according to claim 5,
it is characterized in that:the structure of described first ~ four bank of super capacitors is identical, include the ultracapacitor of several serial connections, and each ultracapacitor two ends of the first ~ four bank of super capacitors is parallel with overvoltage crowbar respectively.
7. amplifier ultracapacitor formula battery power supply system according to claim 5,
it is characterized in that:described supply module also comprises the load capacitor of two serial connections, for the first energy storage electrochemical capacitor and the second energy storage electrochemical capacitor of series connection, the series circuit that described first energy storage electrochemical capacitor and the second energy storage electrochemical capacitor are formed is connected in parallel on the two ends of the first power supply, second source, first energy storage electrochemical capacitor is connected with the positive and negative output of supply module respectively with the two ends of the second energy storage electrochemical capacitor sequential circuit, and the first energy storage electrochemical capacitor is connected with the common of supply module with the intermediate node of the second energy storage electrochemical capacitor series circuit.
8. amplifier ultracapacitor formula battery power supply system according to claim 6,
it is characterized in that:described supply module also comprises the load capacitor of two serial connections, for the first energy storage electrochemical capacitor and the second energy storage electrochemical capacitor of series connection, the series circuit that described first energy storage electrochemical capacitor and the second energy storage electrochemical capacitor are formed is connected in parallel on the two ends of the first power supply, second source, first energy storage electrochemical capacitor is connected with the positive and negative output of supply module respectively with the two ends of the second energy storage electrochemical capacitor sequential circuit, and the first energy storage electrochemical capacitor is connected with the common of supply module with the intermediate node of the second energy storage electrochemical capacitor series circuit.
9. amplifier ultracapacitor formula battery power supply system according to claim 5,
it is characterized in that:
Described positive supply charger is identical with the structure of negative supply charger, includes PWM controller, constant current charger, charging overvoltage protection and charging and discharging state testing circuit; The input of described PWM controller connects external ac power source, the input of positive power signal output serial connection constant current charger, the output of constant current charger connects the positive-negative power end of first, second power supply by the electronic switch of serial connection, the negative power signal output of PWM controller connects the earth terminal of first, second power supply;
Described charging overvoltage protection and charging and discharging state testing circuit are connected to common and the charging end of positive supply charger and negative supply charger.
10. according to the ultracapacitor formula battery power supply system of the amplifier in claim 6 to 8 described in any one,
it is characterized in that:
Described positive supply charger is identical with the structure of negative supply charger, includes PWM controller, constant current charger, charging overvoltage protection and charging and discharging state testing circuit; The input of described PWM controller connects external ac power source, the input of positive power signal output serial connection constant current charger, the output of constant current charger connects the positive-negative power end of first, second power supply by the electronic switch of serial connection, the negative power signal output of PWM controller connects the earth terminal of first, second power supply;
Described charging overvoltage protection and charging and discharging state testing circuit are connected to common and the charging end of positive supply charger and negative supply charger.
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| CN104410118B (en) * | 2014-11-21 | 2023-03-24 | 重庆洋迪机电有限公司 | Quick charging and storing circuit |
| CN104821628A (en) * | 2015-05-20 | 2015-08-05 | 北京小声科技有限公司 | Super capacitor sound box device and control method |
| CN107425580B (en) * | 2017-09-13 | 2023-06-27 | 重庆大及电子科技有限公司 | Charging and discharging circuit based on comparator |
| CN107864435B (en) * | 2017-11-09 | 2024-03-15 | 广州艾美网络科技有限公司 | Audio power control method, control circuit and audio equipment |
| CN108891262B (en) * | 2018-06-27 | 2024-08-16 | 珠海银隆电器有限公司 | High-voltage control circuit and high-voltage control box |
| CN118137650B (en) * | 2024-05-06 | 2024-07-05 | 深圳市积加创新技术有限公司 | Positive and negative symmetrical dual-power switch control circuit of amplifier |
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