CN204615474U - A kind of cell activation management circuit being applied to batteries to store energy DC power supply - Google Patents
A kind of cell activation management circuit being applied to batteries to store energy DC power supply Download PDFInfo
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- CN204615474U CN204615474U CN201520357063.2U CN201520357063U CN204615474U CN 204615474 U CN204615474 U CN 204615474U CN 201520357063 U CN201520357063 U CN 201520357063U CN 204615474 U CN204615474 U CN 204615474U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a kind of cell activation management circuit being applied to batteries to store energy DC power supply, batteries to store energy DC power supply comprises battery management circuit, PWM controls drive circuit, DC-DC converter and storage battery, cell activation control circuit comprises the activation act circuit connected successively, activation signals testing circuit and activation signals buffer circuit, and for being activation signals testing circuit, activation signals buffer circuit and battery management circuit provide the reference voltage circuit of reference voltage, the compensation end that PWM controls drive circuit connects with the output of activation signals buffer circuit, the comparative voltage input of battery management circuit connects with the output of activation signals testing circuit.The utility model structure is simple, reasonable in design, and realization is convenient and cost is low, and use easy to operate, effectively can extend the useful life of storage battery, improve the service efficiency of storage battery, practical, result of use is good, is convenient to promote the use of.
Description
Technical field
The utility model belongs to power technique fields, is specifically related to a kind of cell activation management circuit being applied to batteries to store energy DC power supply.
Background technology
Along with the fast development of the technology such as electric power conveying, communication, in order to the problem of the aspect such as device damage, data loss, operating interruptions that prevents power failure, voltage fluctuation, noise jamming from causing, the application of batteries to store energy DC power supply seems and becomes more and more important.And storage battery is as the energy storage device of batteries to store energy DC power supply, be one of key equipment ensureing system worked well, its effect is when losing civil power or city's electricity quality exceeds the scope of power consumption equipment permission, provides electric energy to load.But storage battery is again a kind of expensive running stores.Therefore, how reasonably use storage battery and manage to extend its useful life, be the problem that UPS manufacturer and each applying unit are paid close attention to for many years always.
It is reported, current storage battery is widely used in the fields such as electric power, communication, instrument and meter, ups power.As everyone knows, the life-span of floating charge on storage battery of storage battery has considerable impact, if storage battery is in floating charge state for a long time, very easily cause electrode sulfuration, mainly the sulfuration of negative electrode active material was lost efficacy, hydraulic performance decline, the internal resistance of cell is increased, battery capacity decays, particularly when the float charge voltage of battery exceedes certain value, grid corrosion phenomenon can be aggravated further, oxygen in battery and hydrogen produce comparatively hyperbar, discharged by air valve, thus cause storage battery dehydration, positive pole corrosion then means battery dehydration, further aggravation storage battery deterioration, the lost of life.If float charge voltage exceedes certain amplitude, the floating charge of increase fails to be convened for lack of a quorum and produces more surplus gas, so just makes oxygen be subject to resistance in negative pole compound, thus weakens the circulating function of oxygen, seriously reduce the life-span.Solution to the problems described above, carry out battery capacity test by the artificial calculating to battery capacity, determine whether battery capacity meets the demands according to test result, but this method is too complicated, higher to personnel requirement, and often there is relatively large deviation in result of calculation.At present, for a long time floating charge state is in for storage battery and causes the problem of service life reduction and capacity attenuation, many employings to the regular charging and discharging of storage battery to maintain the activity of negative electrode active material, prevent electrode sulfuration and storage battery deterioration and cause the life of storage battery to shorten, namely storage battery activation.By starting the activation of storage battery, the recovery being conducive to battery capacity keeps, and greatly extends the useful life of battery, and safe and reliable, and cost performance is high, conforms extensively.The activating technology of recent domestic, mainly contains following several: (1) large current charge method.When large lead sulfate crystal grain produces impedance in charging, big current energy is adopted to make its electrolysis and activation, prevention plate vulcanizing phenomenon.This method eliminates sulfuration only to obtain temporary transient effect, and can bring in the process eliminating sulfuration and increase the weight of dehydration and positive plate softens problem, is difficult to the effect playing extending battery life, only should helps out.(2) negative pulse charging method.Design principle adds negative pulse in charging process, has effect to minimizing temperature rise, also has certain effect to prevention plate vulcanizing, not obvious, although use comparatively wide at present, but belongs to the method for eliminating.And at present, each application of storage battery, except requiring power saving, long service life, also must ensure power supply uninterrupted power supply.Because electrical network also inevitably there will be power outage, therefore, be badly in need of proposing a kind of follow-on cell activation management circuit being applied to batteries to store energy DC power supply.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of cell activation management circuit being applied to batteries to store energy DC power supply is provided, its structure is simple, reasonable in design, and realization is convenient and cost is low, use easy to operate, effectively can extend the useful life of storage battery, improve the service efficiency of storage battery, practical, result of use is good, is convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of cell activation management circuit being applied to batteries to store energy DC power supply, described batteries to store energy DC power supply comprises battery management circuit, PWM controls drive circuit and controls with PWM the DC-DC converter that drive circuit connects, and positive pole connects with the output of DC-DC converter and the storage battery that connects with battery management circuit of negative pole, it is characterized in that: described cell activation control circuit comprises the activation act circuit connected successively, activation signals testing circuit and activation signals buffer circuit, and for being activation signals testing circuit, activation signals buffer circuit and battery management circuit provide the reference voltage circuit of reference voltage, the compensation end that described PWM controls drive circuit connects with the output of activation signals buffer circuit, the comparative voltage input of described battery management circuit connects with the output of activation signals testing circuit,
Described activation act circuit comprises activation start button S3, triode Q8 and resistance R11, one end of described resistance R11 is the remote signal input of activation act circuit, the base stage of described triode Q8 connects with the other end of resistance R11, the base stage of described triode Q8 be connected to resistance R12 in parallel and electric capacity C2 between emitter, the collector electrode of described triode Q8 connects the output end vo of DC-DC converter by the resistance R13 of series connection and resistance R10, the series connection node of described resistance R13 and resistance R10 is by resistance R14 in parallel and electric capacity C3 ground connection, the series connection node of described resistance R13 and resistance R10 is the output of activation act circuit, between the collector electrode that described activation start button S3 is connected on triode Q8 and emitter, the emitter of described triode Q8 connects the output end vo of DC-DC converter,
Described activation signals testing circuit comprises comparator U1, the in-phase input end of described comparator U1 connects the reference voltage output end of reference voltage circuit by resistance R5, and by resistance R3 ground connection, the output of taking over a job of the inverting input function circuit of described comparator U1, be connected to resistance R6 between the output of described comparator U1 and in-phase input end, the output of described comparator U1 is the output of activation signals testing circuit;
Described activation signals buffer circuit comprises light-coupled isolation chip U2 and triode Q2, the anode of described light-coupled isolation chip U2 connects the reference voltage output end of reference voltage circuit by resistance R4, the output of taking over a job of the negative electrode signal deteching circuit of described light-coupled isolation chip U2, the base stage of the collector connecting transistor Q2 of described light-coupled isolation chip U2, the emitter of described light-coupled isolation chip U2 and the equal ground connection of collector electrode of triode Q2, resistance R2 is connected between the base stage of described triode Q2 and emitter, the output of the transmitting of described triode Q2 very activation signals buffer circuit.
Above-mentioned a kind of cell activation management circuit being applied to batteries to store energy DC power supply, it is characterized in that: described reference voltage circuit is made up of integrated three-terminal voltage-stabilizing chip TL431, resistance R16, resistance R17 and resistance R18, the output end vo of the termination DC-DC converter after described resistance R16, resistance R17 and resistance R18 series connection, other end ground connection; The series connection node of described resistance R16 and resistance R17 connects with the negative electrode of integrated three-terminal voltage-stabilizing chip TL431, the negative electrode of integrated three-terminal voltage-stabilizing chip TL431 is the reference voltage output end of reference voltage circuit, the series connection node of described resistance R17 and resistance R18 connects with the reference pole of integrated three-terminal voltage-stabilizing chip TL431, the plus earth of described integrated three-terminal voltage-stabilizing chip TL431.
Above-mentioned a kind of cell activation management circuit being applied to batteries to store energy DC power supply, it is characterized in that: described PWM controls drive circuit and comprises controller chip UC3845 and resistance R1,1st pin of described controller chip UC3845 is the compensation end that PWM controls drive circuit, one end of described resistance R1 connects with the 6th pin of controller chip UC3845, and the other end of described resistance R1 is the output that PWM controls drive circuit.
Above-mentioned a kind of cell activation management circuit being applied to batteries to store energy DC power supply, it is characterized in that: described DC-DC converter comprises transformer T1, switch mosfet pipe Q3 and diode D1, the grid of described switch mosfet pipe Q3 is the control signal input of DC-DC converter, the source ground of described switch mosfet pipe Q3, one end of the primary coil of described transformer T1 is the power input of DC-DC converter and connects with the output of external power source, the other end of the primary coil of described transformer T1 connects with the drain electrode of switch mosfet pipe Q3, one end of the secondary coil of described transformer T1 connects with the anode of diode D1, the negative electrode of described diode D1 is the output end vo of DC-DC converter, and by electric capacity C1 ground connection, the other end ground connection of the secondary coil of described transformer T1.
Above-mentioned a kind of cell activation management circuit being applied to batteries to store energy DC power supply, it is characterized in that: described battery management circuit comprises switch mosfet pipe Q4 and light-coupled isolation chip U5, the anode of described light-coupled isolation chip U5 connects the reference voltage output end of reference voltage circuit by resistance R20, the negative electrode of described light-coupled isolation chip U5 is the comparative voltage input of battery management circuit and the output of taking over a job signal deteching circuit, the collector electrode of described light-coupled isolation chip U5 connects the output end vo of DC-DC converter by resistance R19, the grid of described switch mosfet pipe Q4 connects with the emitter of light-coupled isolation chip U5, the grounded drain of described switch mosfet pipe Q4, the negative pole of described storage battery connects with the source electrode of switch mosfet pipe Q4, resistance R21 is connected between the source electrode of described switch mosfet pipe Q4 and grid.
The utility model compared with prior art has the following advantages:
1, structure of the present utility model is simple, reasonable in design, and realization is convenient and cost is low, uses easy to operate.
2, the utility model manually can activate startup and remote control activation startup two kinds of modes activate storage battery, action was made before sulfation appears in storage battery, can effectively prevent plate vulcanizing phenomenon, effectively can extend the useful life of storage battery, and it is safe and reliable, cost performance is high, improves the service efficiency of storage battery, significant with application to the development prospect of storage battery.
3, in the utility model Switching Power Supply that can be applied to the uninterrupted power supply environment such as electric power, communication, bank, hospital, security protection or related electronic products, conform extensively.
4, result of use of the present utility model is good, is convenient to promote the use of.
In sum, the utility model structure is simple, reasonable in design, and realization is convenient and cost is low, and use easy to operate, effectively can extend the useful life of storage battery, improve the service efficiency of storage battery, practical, result of use is good, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Description of reference numerals:
1-activation act circuit; 2-activation signals testing circuit; 3-activation signals buffer circuit;
4-reference voltage circuit; 5-PWM controls drive circuit; 6-DC-DC converter;
7-battery management circuit; 8-storage battery.
Embodiment
As depicted in figs. 1 and 2, the cell activation management circuit being applied to batteries to store energy DC power supply of the present utility model, described batteries to store energy DC power supply comprises battery management circuit 7, PWM controls drive circuit 5 and controls with PWM the DC-DC converter 6 that drive circuit 5 connects, and positive pole connects with the output of DC-DC converter 6 and the storage battery 8 that connects with battery management circuit 7 of negative pole, described cell activation control circuit comprises the activation act circuit 1 connected successively, activation signals testing circuit 2 and activation signals buffer circuit 3, and for being activation signals testing circuit 2, activation signals buffer circuit 3 and battery management circuit 7 provide the reference voltage circuit 4 of reference voltage, the compensation end that described PWM controls drive circuit 5 connects with the output of activation signals buffer circuit 3, the comparative voltage input of described battery management circuit 7 connects with the output of activation signals testing circuit 2,
As shown in Figure 2, described activation act circuit 1 comprises activation start button S3, triode Q8 and resistance R11, one end of described resistance R11 is the remote signal input HK of activation act circuit 1, the base stage of described triode Q8 connects with the other end of resistance R11, the base stage of described triode Q8 be connected to resistance R12 in parallel and electric capacity C2 between emitter, the collector electrode of described triode Q8 connects the output end vo of DC-DC converter 6 by the resistance R13 of series connection and resistance R10, the series connection node of described resistance R13 and resistance R10 is by resistance R14 in parallel and electric capacity C3 ground connection, the series connection node of described resistance R13 and resistance R10 is the output of activation act circuit 1, between the collector electrode that described activation start button S3 is connected on triode Q8 and emitter, the emitter of described triode Q8 connects the output end vo of DC-DC converter 6, wherein, resistance R12 is the base biasing resistor of triode Q8, and in activation act circuit 1, the effect of electric capacity C2 and resistance R12 ensures when the remote signal input HK of activation act circuit 1 is unsettled, and triode Q8 can reliable turn-off, simultaneously, when the remote signal input HK of activation act circuit 1 receives the low level of remote controller transmitting and needs to make triode Q8 conducting, after necessarily requiring the low level of the remote signal input HK of activation act circuit 1 to maintain a period of time (such as several ms), could allow triode Q8 conducting, can prevent from like this producing misoperation because of the instantaneous disturbance low level of the remote signal input HK of activation act circuit 1, in activation act circuit 1, the effect of electric capacity C3 ensures that at the inverting input of power supply electrifying moment comparator U1 be low level, and can continue for some time (such as several ms), guarantee power supply electrifying moment, the output of comparator U1 exports as high level, thus can normally work after guaranteeing batteries to store energy electrifying DC power supply.
As shown in Figure 2, described activation signals testing circuit 2 comprises comparator U1, the in-phase input end of described comparator U1 meets the reference voltage output end Vref of reference voltage circuit 4 by resistance R5, and by resistance R3 ground connection, the output of taking over a job of the inverting input function circuit 1 of described comparator U1, be connected to resistance R6 between the output of described comparator U1 and in-phase input end, the output of described comparator U1 is the output of activation signals testing circuit 2; During concrete wiring, the reference voltage output end Vref of the power supply termination reference voltage circuit 4 of described comparator U1, the earth terminal ground connection of described comparator U1;
As shown in Figure 2, described activation signals buffer circuit 3 comprises light-coupled isolation chip U2 and triode Q2, the anode of described light-coupled isolation chip U2 meets the reference voltage output end Vref of reference voltage circuit 4 by resistance R4, the output of taking over a job of the negative electrode signal deteching circuit 2 of described light-coupled isolation chip U2, the base stage of the collector connecting transistor Q2 of described light-coupled isolation chip U2, the emitter of described light-coupled isolation chip U2 and the equal ground connection of collector electrode of triode Q2, resistance R2 is connected between the base stage of described triode Q2 and emitter, the output of the transmitting of described triode Q2 very activation signals buffer circuit 3.
As shown in Figure 2, in the present embodiment, described reference voltage circuit 4 is made up of integrated three-terminal voltage-stabilizing chip TL431, resistance R16, resistance R17 and resistance R18, the output end vo of the termination DC-DC converter 6 after described resistance R16, resistance R17 and resistance R18 series connection, other end ground connection; The series connection node of described resistance R16 and resistance R17 connects with the negative electrode of integrated three-terminal voltage-stabilizing chip TL431, the negative electrode of integrated three-terminal voltage-stabilizing chip TL431 is the reference voltage output end Vref of reference voltage circuit 4, the series connection node of described resistance R17 and resistance R18 connects with the reference pole of integrated three-terminal voltage-stabilizing chip TL431, the plus earth of described integrated three-terminal voltage-stabilizing chip TL431.
As shown in Figure 2, in the present embodiment, described PWM controls drive circuit 5 and comprises controller chip UC3845 and resistance R1,1st pin of described controller chip UC3845 is the compensation end that PWM controls drive circuit 5, one end of described resistance R1 connects with the 6th pin of controller chip UC3845, and the other end of described resistance R1 is the output that PWM controls drive circuit 5.
As shown in Figure 2, in the present embodiment, described DC-DC converter 6 comprises transformer T1, switch mosfet pipe Q3 and diode D1, the grid of described switch mosfet pipe Q3 is the control signal input of DC-DC converter 6, the source ground of described switch mosfet pipe Q3, one end of the primary coil of described transformer T1 is the power input Vi+ of DC-DC converter 6 and connects with the output of external power source, the other end of the primary coil of described transformer T1 connects with the drain electrode of switch mosfet pipe Q3, one end of the secondary coil of described transformer T1 connects with the anode of diode D1, the negative electrode of described diode D1 is the output end vo of DC-DC converter 6, and by electric capacity C1 ground connection, the other end ground connection of the secondary coil of described transformer T1.During concrete enforcement, between the output end vo that load RL is connected on DC-DC converter 6 and ground.
As shown in Figure 2, in the present embodiment, described battery management circuit 7 comprises switch mosfet pipe Q4 and light-coupled isolation chip U5, the anode of described light-coupled isolation chip U5 meets the reference voltage output end Vref of reference voltage circuit 4 by resistance R20, the negative electrode of described light-coupled isolation chip U5 is the comparative voltage input of battery management circuit 7 and the output of taking over a job signal deteching circuit 2, the collector electrode of described light-coupled isolation chip U5 connects the output end vo of DC-DC converter 6 by resistance R19, the grid of described switch mosfet pipe Q4 connects with the emitter of light-coupled isolation chip U5, the grounded drain of described switch mosfet pipe Q4, the negative pole of described storage battery 8 connects with the source electrode of switch mosfet pipe Q4, resistance R21 is connected between the source electrode of described switch mosfet pipe Q4 and grid.
During concrete enforcement, described activation act circuit 1, activation signals testing circuit 2 and reference voltage circuit 4 all with the secondary coil of transformer T1 altogether, the primary coil of described activation signals buffer circuit 3 and transformer T1 is altogether.The model of described light-coupled isolation chip U2 and light-coupled isolation chip U5 is PC817.
When cell activation control circuit of the present utility model uses, reference voltage circuit 4 provides reference voltage V for activation signals testing circuit 2
refthe remote signal received by the activation start button S3 in activation act circuit 1 and remote signal input HK controls the output level height of activation signals testing circuit 2, and then control drive circuit 5 and battery management circuit 7 by activation signals buffer circuit 3, PWM, make storage battery 8 complete activation.Concrete operation principle is:
(1) in the whole course of work, by reference voltage circuit 4 be activation signals testing circuit 2, activation signals buffer circuit 3 and battery management circuit 7 provide reference voltage V
ref;
(2) when cell activation does not start, namely activate start button S3 do not press and the remote signal input HK of activation act circuit 1 is unsettled time, the anti-phase input terminal voltage V of comparator U1 in activation signals testing circuit 2
-1lower than in-phase input end voltage V
+ 1, the output of comparator U1 exports as high level, and light-coupled isolation chip U2 does not work, and triode Q2 turns off, and PWM controls drive circuit 5 and DC-DC converter 6 normally works;
(3) start moment in cell activation, namely press activation start button S3 or the remote signal input HK of activation act circuit 1 when receiving the low level that remote controller launches, the anti-phase input terminal voltage V of comparator U1 in activation signals testing circuit 2
-2higher than in-phase input end voltage V
+ 1, the output of comparator U1 exports as low level, thus makes the in-phase input end voltage of comparator U1 by V
+ 1reduce to V
+ 2, and obviously have V
-2>V
+ 2, therefore unclamp activation start button S3 or the remote signal input HK of activation act circuit 1 unsettled after, still meet the anti-phase input terminal voltage V of comparator U1
-1be greater than in-phase input end voltage V
+ 2, make the output of comparator U1 maintain low level; When the output of comparator U1 is low level, on the one hand, light-coupled isolation chip U2 in activation signals buffer circuit 3 is started working, thus triode Q2 saturation conduction, the 1st pin voltage making PWM control drive circuit 5 middle controller chip UC3845 is dragged down, and PWM controls drive circuit 5 output low level, and switch mosfet pipe Q3 turns off, DC-DC converter 6 quits work, and storage battery 8 stops charging; On the other hand, light-coupled isolation chip U5 in battery management circuit 7 also starts work, thus makes the emitter of light-coupled isolation chip U5 export as high level, switch mosfet pipe Q4 conducting, storage battery 8 forms discharge loop by load RL and switch mosfet pipe Q4, and starts electric discharge;
(4) during cell activation, the in-phase input end voltage V of comparator U1 in activation signals testing circuit 2
+ 2remain unchanged, the anti-phase input terminal voltage V of comparator U1 in activation signals testing circuit 2
-2reduce along with the reduction of storage battery 8 voltage, but meet V always
-2>V
+ 2;
(5) in cell activation ending phase, along with the continuous reduction of storage battery 8 voltage, as the anti-phase input terminal voltage V of comparator U1
-2be reduced to and meet V
-2<V
+ 2time, the output of comparator U1 exports as high level, and cell activation process terminates, on the one hand, the light-coupled isolation chip U5 in battery management circuit 7 quits work, thus makes the emitter of light-coupled isolation chip U5 export as low level, switch mosfet pipe Q4 turns off, and storage battery 8 stops electric discharge; On the other hand, the light-coupled isolation chip U2 in activation signals buffer circuit 3 also quits work, thus triode Q2 is turned off, and makes PWM control drive circuit 5 and DC-DC converter 6 recover normal work, again starts accumulators 8 and charge.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection range of technical solutions of the utility model.
Claims (5)
1. one kind is applied to the cell activation management circuit of batteries to store energy DC power supply, described batteries to store energy DC power supply comprises battery management circuit (7), PWM controls drive circuit (5) and controls with PWM the DC-DC converter (6) that drive circuit (5) connects, and positive pole connects with the output of DC-DC converter (6) and the storage battery (8) that connects with battery management circuit (7) of negative pole, it is characterized in that: described cell activation control circuit comprises the activation act circuit (1) connected successively, activation signals testing circuit (2) and activation signals buffer circuit (3), and for being activation signals testing circuit (2), activation signals buffer circuit (3) and battery management circuit (7) provide the reference voltage circuit (4) of reference voltage, the compensation end that described PWM controls drive circuit (5) connects with the output of activation signals buffer circuit (3), the comparative voltage input of described battery management circuit (7) connects with the output of activation signals testing circuit (2),
Described activation act circuit (1) comprises activation start button S3, triode Q8 and resistance R11, one end of described resistance R11 is the remote signal input of activation act circuit (1), the base stage of described triode Q8 connects with the other end of resistance R11, the base stage of described triode Q8 be connected to resistance R12 in parallel and electric capacity C2 between emitter, the collector electrode of described triode Q8 connects the output end vo of DC-DC converter (6) by the resistance R13 of series connection and resistance R10, the series connection node of described resistance R13 and resistance R10 is by resistance R14 in parallel and electric capacity C3 ground connection, the series connection node of described resistance R13 and resistance R10 is the output of activation act circuit (1), between the collector electrode that described activation start button S3 is connected on triode Q8 and emitter, the emitter of described triode Q8 connects the output end vo of DC-DC converter (6),
Described activation signals testing circuit (2) comprises comparator U1, the in-phase input end of described comparator U1 connects the reference voltage output end of reference voltage circuit (4) by resistance R5, and by resistance R3 ground connection, the output of taking over a job of the inverting input function circuit (1) of described comparator U1, be connected to resistance R6 between the output of described comparator U1 and in-phase input end, the output of described comparator U1 is the output of activation signals testing circuit (2);
Described activation signals buffer circuit (3) comprises light-coupled isolation chip U2 and triode Q2, the anode of described light-coupled isolation chip U2 connects the reference voltage output end of reference voltage circuit (4) by resistance R4, the output of taking over a job of the negative electrode signal deteching circuit (2) of described light-coupled isolation chip U2, the base stage of the collector connecting transistor Q2 of described light-coupled isolation chip U2, the emitter of described light-coupled isolation chip U2 and the equal ground connection of collector electrode of triode Q2, resistance R2 is connected between the base stage of described triode Q2 and emitter, the output of the transmitting of described triode Q2 very activation signals buffer circuit (3).
2. according to a kind of cell activation management circuit being applied to batteries to store energy DC power supply according to claim 1, it is characterized in that: described reference voltage circuit (4) is made up of integrated three-terminal voltage-stabilizing chip TL431, resistance R16, resistance R17 and resistance R18, the output end vo of the termination DC-DC converter (6) after described resistance R16, resistance R17 and resistance R18 series connection, other end ground connection; The series connection node of described resistance R16 and resistance R17 connects with the negative electrode of integrated three-terminal voltage-stabilizing chip TL431, the negative electrode of integrated three-terminal voltage-stabilizing chip TL431 is the reference voltage output end of reference voltage circuit (4), the series connection node of described resistance R17 and resistance R18 connects with the reference pole of integrated three-terminal voltage-stabilizing chip TL431, the plus earth of described integrated three-terminal voltage-stabilizing chip TL431.
3. according to a kind of cell activation management circuit being applied to batteries to store energy DC power supply according to claim 1, it is characterized in that: described PWM controls drive circuit (5) and comprises controller chip UC3845 and resistance R1,1st pin of described controller chip UC3845 is the compensation end that PWM controls drive circuit (5), one end of described resistance R1 connects with the 6th pin of controller chip UC3845, and the other end of described resistance R1 is the output that PWM controls drive circuit (5).
4. according to a kind of cell activation management circuit being applied to batteries to store energy DC power supply according to claim 1, it is characterized in that: described DC-DC converter (6) comprises transformer T1, switch mosfet pipe Q3 and diode D1, the grid of described switch mosfet pipe Q3 is the control signal input of DC-DC converter (6), the source ground of described switch mosfet pipe Q3, one end of the primary coil of described transformer T1 is the power input of DC-DC converter (6) and connects with the output of external power source, the other end of the primary coil of described transformer T1 connects with the drain electrode of switch mosfet pipe Q3, one end of the secondary coil of described transformer T1 connects with the anode of diode D1, the negative electrode of described diode D1 is the output end vo of DC-DC converter (6), and by electric capacity C1 ground connection, the other end ground connection of the secondary coil of described transformer T1.
5. according to a kind of cell activation management circuit being applied to batteries to store energy DC power supply according to claim 1, it is characterized in that: described battery management circuit (7) comprises switch mosfet pipe Q4 and light-coupled isolation chip U5, the anode of described light-coupled isolation chip U5 connects the reference voltage output end of reference voltage circuit (4) by resistance R20, the negative electrode of described light-coupled isolation chip U5 is the comparative voltage input of battery management circuit (7) and the output of taking over a job signal deteching circuit (2), the collector electrode of described light-coupled isolation chip U5 connects the output end vo of DC-DC converter (6) by resistance R19, the grid of described switch mosfet pipe Q4 connects with the emitter of light-coupled isolation chip U5, the grounded drain of described switch mosfet pipe Q4, the negative pole of described storage battery (8) connects with the source electrode of switch mosfet pipe Q4, resistance R21 is connected between the source electrode of described switch mosfet pipe Q4 and grid.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109660127A (en) * | 2018-12-14 | 2019-04-19 | 广州金升阳科技有限公司 | A kind of power circuit and the photovoltaic generating system comprising the power circuit |
| CN111077930A (en) * | 2019-12-17 | 2020-04-28 | 太原航空仪表有限公司 | Energy storage circuit power failure monitoring trigger circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109660127A (en) * | 2018-12-14 | 2019-04-19 | 广州金升阳科技有限公司 | A kind of power circuit and the photovoltaic generating system comprising the power circuit |
| CN111077930A (en) * | 2019-12-17 | 2020-04-28 | 太原航空仪表有限公司 | Energy storage circuit power failure monitoring trigger circuit |
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