CN200994071Y - Battery charger - Google Patents
Battery charger Download PDFInfo
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- CN200994071Y CN200994071Y CNU2006201663614U CN200620166361U CN200994071Y CN 200994071 Y CN200994071 Y CN 200994071Y CN U2006201663614 U CNU2006201663614 U CN U2006201663614U CN 200620166361 U CN200620166361 U CN 200620166361U CN 200994071 Y CN200994071 Y CN 200994071Y
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Abstract
The utility model relates to a battery charger, in particular to a battery charger, which can provide pulse-type charging current and repair old batteries. Through acquisition of sampling units and checking of state signals of the charging battery, the charge control unit controls the pulse generating unit to produce pulse control signals with corresponding pulse width by judging the state signals of the battery. The charge output unit generates suitable charging pulses according to the pulse control signals. The procedure can ensure that the pulses change with the state signals of the battery at intervals between charging and top-off, to avoid overheating and water-loss of the battery because of over charging and voltage over-tension. The procedure can also avoid the battery plate face from sulfation by insufficient charging because of insufficient charging current and low voltage. The utility model has advantages of that the distinctions between high voltage and low voltage, which is generated from different batteries of the battery group during charging and discharging, can be balanced by modifying; and the voltage of every single battery may tend to have regenerating balance. Thus the service life of the batteries can be extended.
Description
Technical field
The utility model relates to a kind of battery charger, particularly a kind of battery charger that the pulse charging electric current can be provided, repair used batteries.
Technical background
Present known battery charger, when storage battery was charged, what generally adopt was the charging modes of constant current, constant voltage, floating charge syllogic, charging process is as follows:
In the constant current charge stage, it is constant that charging current keeps, and charging into electric weight in the storage battery increases fast, and voltage rises;
In the constant voltage charge stage, it is constant that charging voltage keeps, and charges into electric weight in the storage battery and continue to increase, and electric current descends;
In the floating charge stage, storage battery is full of, and electric current drops to and is lower than the floating charge switching current, and charging voltage reduces and also remains float charge voltage.
Yet no matter be in the sort of charging stage, if charging current is little, the charging interval will be longer, and electric current causes battery overheated greatly, thereby causes the battery dehydration, shortened battery useful life; On the other hand, each piece battery in the battery pack inevitably can produce voltage height difference when discharge, voltage height difference is big more, can cause the low cell capacity attenuation of voltage to accelerate more, and so the shortening of vicious circle battery pack bulk life time will aggravate.The known charge device not only has no idea when charging this voltage difference to be carried out the balance repairing at present, can strengthen on the contrary.For lead acid accumulator, because sulfuric acid viscosity height in the battery under the winter low temperature situation, the internal resistance of cell increases exponentially, make electrochemical reaction slow, under the little condition of charging current, it is full also can to cause battery to fill, and is in for a long time at battery and a kind ofly overcharges or owe charged state, can make continuous dehydration of inside battery and sulfation, shorten useful life greatly.
The utility model content
The utility model has overcome above-mentioned shortcoming, provides a kind of and has rationally exported droped beat according to battery charging process and dash, and increases the storage battery battery charger in useful life.
The technical scheme in the invention for solving the technical problem is: a kind of battery charger comprises:
Power input unit, the power supply that receive to exchange input is exported after being converted into direct current;
The charging output unit according to the pulse control signal that the pulse generation unit sends, will be exported with impulse form from the direct current input that power input unit obtains;
Sampling unit is from the status signal of the output of described charging output unit sampling storage battery;
Charging control unit, the battery condition signal according to the described sampling unit output that receives sends corresponding charging control signal;
The pulse generation unit receives the charging control signal that charging control unit is sent, and sends pulse control signal to described charging output unit;
Voltage regulation unit is converted into low-voltage supply with the output signal of described power input unit.
Also can comprise the voltage-regulation unit, receive the regulated voltage signal that charging control unit is sent, control the output voltage of described charging output unit.
Described pulse generation unit can comprise a pulse width control chip and peripheral circuit thereof, the charging control signal of described charging control circuit output is input to the signal input part of described pulse width control chip by a photoelectrical coupler, and the output of described pulse width control chip is controlled the output that described charging output unit receives power input unit by an injectron.
The output of described power input unit can be connected to an end of the primary coil of a transformer, the pulse control signal that described pulse generation unit sends is connected to the other end of described primary transformers primary coil, the input of described charging output unit is connected to the secondary of described transformer, the pulse signal control primary coil of described pulse generation unit obtains electric current input intermittently, makes secondary coil obtain corresponding intermittent current output.
The divider resistance and the shunt regulator that can comprise series connection in the described voltage-regulation unit, the regulated voltage signal that described charging control unit is sent, after carrying out Signal Spacing through a photoelectrical coupler, be connected between divider resistance and the shunt regulator, described divider resistance is connected to described charging output unit and links to each other, after described photoelectrical coupler receives regulated voltage signal, control the voltage of described charging output unit output.
Can also be in series with a voltage-stabiliser tube between described divider resistance and the shunt regulator, the negative electrode of described voltage-stabiliser tube links to each other with described divider resistance.
Described charging output unit can comprise rectifier diode, filter capacitor, common mode inductance and the protective tube that connects successively, also has the negative electrode of a diode to be connected between described protective tube and the common mode inductance plus earth.
The input of described voltage regulation unit is connected another secondary coil of described high-tension transformer, comprises rectifier diode, filter capacitor and common mode inductance coil successively, again by after further voltage stabilizing of regulator block, output+5V ,+12V or+the 15V working power.
Described charging control unit can be microprocessor, comprises single-chip microcomputer, MCU or CPU.
Described charging control unit can comprise the two-stage comparison circuit, the input of described first order comparison circuit receives described sampling unit output, signal after the comparison is outputed to described voltage-regulation unit, output to simultaneously in the comparison circuit of the second level, the described second level is outputing to comparative result in the described pulse generation unit of electric current relatively.
The utility model is by the sampling unit collection, detect the status signal of storage battery to be charged, described charging control unit is passed through the battery condition signal judgment, the control impuls generating unit produces the pulse control signal of corresponding pulsewidth, described charging output unit is exported rational charging pulse according to described pulse control signal, can guarantee to charge and the variation of gap pulse with storage battery accumulate state that stop charging changes, can not make storage battery cause overheated dehydration with overtension because of charging current is excessive, can not make simultaneously storage battery cause to owe to charge with brownout because of charging current is too small makes accumulator plate produce sulfation, can also repair the voltage height difference that produces between each piece battery of battery pack in the balance charge and discharge process, make each monomer battery voltage be tending towards the balance of regenerating, reach the prolongation storage battery effect in useful life.
Description of drawings
Fig. 1 is a theory diagram of the present utility model;
Fig. 2 is the circuit theory diagrams of embodiment 1 in the utility model;
Fig. 3 is the circuit theory diagrams of embodiment 2 in the utility model.
Embodiment
As shown in fig. 1, the utility model comprises power input unit, the charging output unit, sampling unit, charging control unit, the pulse generation unit, voltage-regulation unit and voltage regulation unit, described power input unit is with the external AC power supply input that receives, be converted into direct current, be input to the charging output unit, the pulse control signal that described charging output unit sends according to the pulse generation unit, the direct current output of power input unit is exported with impulse form, described sampling unit is from the status signal of the output sampling storage battery of described charging output unit, send to described charging control unit, by described charging control unit according to the battery condition signal, send corresponding charging control signal to the pulse generation unit, again by described pulse generation unit according to the described charging control signal that receives, send pulse control signal to described charging output unit, control the output of described charging output unit, declare the control signal of sending according to sampling unit in described charging control unit and judge that storage battery is full of, then send regulated voltage signal, control the output voltage of described charging output unit to described voltage-regulation unit.Described in addition voltage regulation unit is used for output signal with described power input unit and is converted into+low-voltage supply of 5V, give in the described charger that integrated circuit provides stable work energy in each circuit unit.
Fig. 2 is the circuit theory diagrams of a preferred embodiment of the utility model, below in conjunction with Fig. 2 the utility model content is described in detail.
Described input power subsystem is connected with filter capacitor C7, common mode inductance coil L1, full-wave rectification bridge BR1 and electrochemical capacitor C8 in turn from external ac power input end, obtain+output of 300V direct current, a transformer T1 receives the computer of input power subsystem output, the elementary end of described transformer T1 is connected to the dc output end of described input power subsystem+300V, and the other end then connects the output of described pulse generation unit.
The input of described charging output unit connects the secondary of described transformer T1, comprise successively as behind diode D2, filter capacitor C4, C12, common mode inductance coil L2 and the filter capacitor C11 of rectification from the output of T1 level of transformer, after connecting diode D7 and protective tube F2, export again, promptly be connected to output OUT end, offer the charging end of storage battery.Owing to connect diode D7 and protective tube F2 at charging output OUT end, utilize the unilateal conduction characteristic of diode D7, reach and prevent that accumulator anode and cathode from connecing the purpose of burning protective tube inverse time, and then protect described charger.
Described sampling unit comprises divider resistance R18, the R19 of two series connection, the input of described divider resistance is connected between the common mode inductance coil L2 and diode D7 of charging in the output unit, the dividing potential drop output is then by outputing in the charging control unit after capacitor C 24 filtering, divider resistance R18, R19 monitor the voltage status of battery at any time with the voltage signal real-time sampling and the output of current storage battery.
Described charging control unit mainly comprises microcontroller U3, described microcontroller U3 can be little process chip such as single-chip microcomputer, CPU, MCU, after described microcontroller U3 converts the sampled signal of the sampling unit that receives to digital signal, judge the current charged state of battery, send corresponding pulse control signal and regulated voltage signal.
Described pulse generation unit receives the pulse control signal that described charging control unit is sent, through sending to pulse width control chip U1 after the photoelectrical coupler ISO2 Signal Spacing, the output relevant pulse width modulation signals of described pulse width control chip U1, control injectron M1 conducting or end, and then the elementary electric current that whether passes through of control transformer T1.The supply power voltage of described pulse width control chip U1 power supply pin be by in the described power input unit after alternating voltage is by filter capacitor C11 filtering, directly power supply makes its work to switch integrated circuit power supply pin after the series diode D4 rectification again by dropping resistor R14, because of the alternating voltage input is the sine wave of pulsation, realize halfwave rectifier by dropping resistor diode in series D4, and the output voltage of halfwave rectifier is 0.45 times of input voltage, so when the alternating voltage of input is 110V, multiply by 0.45 after the rectification and just equal 49.5V, by dropping resistor R4 the direct voltage of 49.5V is dropped to 7V-8.2V again and supply with switch integrated circuit work, in like manner, when the alternating voltage of input is 220V, multiply by 0.45 after the rectification and just equal 99V, after dropping resistor R4 step-down, drop to 7V-8.2V, supply with switch integrated circuit work.This shows that 49.5V or 99V direct voltage and 300V direct voltage drop to 7V-8.2V through dropping resistor equally, obviously 49.5V or 99V direct current reduce by 2/3 than the loss power of 300V DC decompression, and heat reduces by 2/3, and efficient improves 2/3.In addition, when no matter being 110V or 220V for reaching the interchange input, the purpose that the output current equal power is constant, adjust switching tube M1 current-limiting resistance, the 300V direct voltage series connection resistance R 10 that is the rectification output behind the ac filter is formed bleeder circuit with current-limiting resistance R9, to be divided to 3 pin voltages of switch integrated circuit low when input ac voltage is low, be input to 3 pin voltage height of switch integrated circuit when the input ac voltage height. because switch integrated circuit 3 pin reference voltages are constant 2.5V, if 3 pin input voltage height, offset current is little, otherwise offset current is big.Thereby when realizing that 110V and 220V input power supply is changed automatically on a charger, need not adjust the switching tube current-limiting resistance respectively, just can reach output current and equate and power invariability.
Described voltage-regulation unit receives the regulated voltage signal that described charging control unit is sent, after process photoelectrical coupler ISO3 carries out Signal Spacing, further control photoelectrical coupler ISO1 conducting, by being connected capacitor C 4 and the resistance R between the common mode inductance coil L2 7 and shunt regulator U4 dividing potential drop in the charging output unit, make the output voltage of described charging output unit reduce, between resistance R 7 and photoelectrical coupler ZD2, also be in series with a voltage-stabiliser tube ZD2 who is used for constant charge output unit output voltage, by on the pin of photoelectrical coupler ISO1 interior light emitting diodes positive pole with current-limiting resistance R7 between the voltage stabilizing didoe ZD2 that connects, utilize the tube voltage drop of voltage stabilizing didoe ZD to reduce the voltage in this loop to reduce the resistance of current-limiting resistance R7, shorten and transmit signal time, eliminate Switching Power Supply self-oscillation, reduce caloric value, reach the constant purpose of working stability output voltage.
The input of described voltage regulation unit is connected another secondary winding of described high-tension transformer T1, comprise rectifier diode D3, filter capacitor C3, C22 and common mode inductance coil L3 successively, again by after the further voltage stabilizing of regulator block U2, output+5V working power provides stable working power to the pulse width control chip U1 in the pulse generation unit and the controller U3 of charging control unit.The supply power voltage that needs by the power supply integrated circuit designs, directly through above-mentioned each voltage regulation filtering device, supplying intergrated circuit with electricity, avoid directly taking out, because of the electric current by divider resistance is big, so the degree of heat height from low-tension supply, thereby reduce built-in temperature significantly, improve stability.
Based on said structure, the course of work of the present utility model is as follows: after sampling the current voltage of storage battery by described sampling unit, transform by the analog to digital converter among the microprocessor U3 in the charging control unit, accomplish meticulous detecting and signal transmission, further judge then and export, with 36 volts of lead-acid battery groups is example, damages and no longer charges the battery if the voltage of measuring storage battery, is then judged battery less than 10 volts; Be pressed between 10 volts to 36 volts when battery powers on, the pulse of then using gradual change is to battery charge, and charging voltage is 47.5 volts, and send pulse control signal, control pulse generation circuit is sent charging pulse, duty ratio from 0.5% to 90% linear increasing, and charging pulse cycle perseverance is 5 seconds; When cell voltage during at 36 volts to 42.5 volts, system can change charge pulse duty cycle into 70%, and charging voltage is 47.5 volts; When cell voltage during at 42.5 to 43.2 volts, then carry out the charging pulse width adjustment from the number of times that 43.2 volts of tops drop into 43.2 belows according to cell voltage, the adjusting range interval is 66% to 14%; Cell voltage is in the time of 43.7 volts to 44.5 volts, software can charge by 10% pulsewidth, when drop number surpasses 15 numbers, when cell voltage is higher than 44.5 volts, judge that then battery is filled, and with the output voltage conditioning signal, control described voltage-regulation unit the output voltage of described charging output unit is adjusted to 42 volts, adjust the charging pulsewidth then and be 10% to keep battery full capacity state.Therefore, the utility model can be according to the situation of change of different time sections magnitude of voltage in the battery charging process, in good time accordingly to different voltage, the electric currents of battery input, take the charging idle hours of different length, thereby avoid battery that the overheated situation of pole plate takes place in charging process, reduce the charging fluid loss, increase the service life.In the time of can be in the winter time to battery charge, strengthen charging current, when shortening the charging interval, guarantee all to be charged to optimum state at every turn.Can repair the voltage height difference that produces between each piece battery of battery pack in the balance charge and discharge process, make each monomer battery voltage be tending towards the balance of regenerating.Solved the defective that battery overcharges for a long time and owes to charge, thereby avoided the inside battery sulfation, recovered battery capacity, increased the service life.
Simultaneously, when the incoming transport power supply, because high pressure switch current and pulse short circuit current that high-speed switch changes, be easy to generate and have big spike burr in the noise jamming, cause electromagnetic interference, radiated interference makes power supply and the reference comparison voltages and the instability of MCU microprocessor, and the little process chip of MCU requires very high to power supply, require the amplitude quite stable, more can not have big spike burr, cause electromagnetic interference, radiated interference, if have big spike burr, cause electromagnetic interference, during radiated interference, it is extremely inaccurate with the data of not moving and detecting out that the software program of the little process chip of MCU inside will not have continuous disorderly operation.Common mode inductance coil ISO1, ISO2, ISO3 are adopted in many places in the utility model, utilize the non-linear pulsactor of common mode inductance to suppress the spike of diode reverse recovery current, electric current raises in a flash in the loop, because non-linear saturated common mode inductance has very high initial and maximum induction amount, change presents very high impedance, thereby can suppress the current spike of switch moment generation; When current spike in the past after, non-linear pulsactor is in the magnetic saturation state, the residual electricity sensibility reciprocal after saturated is near zero; That is to say that the spike inhibitor can play the high impedance effect at the electric current building up transient, and only be a nonlinear inductance element that loss is very little when normal condition.By this principle, at AC power input unit, charging output unit with suppress to disturb for the voltage regulation unit of the little process chip U3 power supply of MCU simultaneously by common mode inductance, make the little process chip U3 of its MCU normal reliable ground operation in a good power supply environment, finish ideal functionality.
In addition, the utility model goes for single the battery and the battery pack of lead acid accumulator, nickel-hydrogen accumulator and the lithium-ions battery of any nominal voltage value, only need after initialization is finished, only need the parameter in adjustment output voltage and the local software program just passable.
Present embodiment to the detection and the charging control precision height of cell voltage, can be realized the control of multisection type charging process owing to realize charging control by MCU, reaches comparatively desirable charging effect, prolongs the useful life of battery.
Another kind of embodiment of the present utility model as shown in Figure 3, only be with the difference of embodiment 1, described charging control unit 7 is realized by analog circuit, described sampling unit is by resistance R 22, R23 realizes dividing potential drop, the first order discharge circuit of voltage division signal by there being amplifier U4A to constitute, output in the described voltage-regulation unit 6 after relatively with+12V reference voltage, when being recharged cell voltage and being higher than 44.5V, in resistance R 22, the voltage that the last dividing potential drop of R23 obtains is input to voltage that amplifier U4A leads to input when being higher than the 12V of amplifier input, then to described voltage-regulation unit 6 output high level signals, by identical among the process of the output voltage of the described charging output unit of described voltage-regulation unit 6 controls and the embodiment 1.Also be input to simultaneously the second level comparison circuit that constitutes by amplifier U4B and peripheral resistance from the signal of described amplifier U4A output, export to described pulse generation unit 5 through diode D3 again through after the comparison of U4B, by described pulse generation unit 5 realizations pulse output control as described in example 1 above.The circuit structure of the middle charging control unit 7 of present embodiment is simple, and is also easier during the manufacturing, cost is also cheaper, and wherein said comparison circuit also can be realized by comparator or other electronic components except that adopting above-mentioned integrated operational amplifier realizes.
More than battery charger provided by the utility model is described in detail, used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (10)
1. a battery charger is characterized in that: comprise
Power input unit, the power supply that receive to exchange input is exported after being converted into direct current;
The charging output unit according to the pulse control signal that the pulse generation unit sends, will be exported with impulse form from the direct current input that power input unit obtains;
Sampling unit is from the status signal of the output of described charging output unit sampling storage battery;
Charging control unit, the battery condition signal according to the described sampling unit output that receives sends corresponding charging control signal;
The pulse generation unit receives the charging control signal that charging control unit is sent, and sends pulse control signal to described charging output unit;
Voltage regulation unit is converted into low-voltage supply with the output signal of described power input unit.
2. battery charger according to claim 1 is characterized in that: also comprise the voltage-regulation unit, receive the regulated voltage signal that charging control unit is sent, control the output voltage of described charging output unit.
3. battery charger according to claim 1 and 2, it is characterized in that: described pulse generation unit comprises a pulse width control chip and peripheral circuit thereof, the charging control signal of described charging control circuit output is input to the signal input part of described pulse width control chip by a photoelectrical coupler, and the output of described pulse width control chip is controlled the output that described charging output unit receives power input unit by an injectron.
4. battery charger according to claim 1 and 2, it is characterized in that: the output of described power input unit is connected to an end of the primary coil of a transformer, the pulse control signal that described pulse generation unit sends is connected to the other end of described primary transformers primary coil, the input of described charging output unit is connected to the secondary of described transformer, the pulse signal control primary coil of described pulse generation unit obtains electric current input intermittently, makes secondary coil obtain corresponding intermittent current output.
5. battery charger according to claim 1 and 2, it is characterized in that: the divider resistance and the shunt regulator that comprise series connection in the described voltage-regulation unit, the regulated voltage signal that described charging control unit is sent, after carrying out Signal Spacing through a photoelectrical coupler, be connected between divider resistance and the shunt regulator, described divider resistance is connected to described charging output unit and links to each other, after described photoelectrical coupler receives regulated voltage signal, control the voltage of described charging output unit output.
6. battery charger according to claim 5 is characterized in that: in the described voltage-regulation unit, also be in series with a voltage-stabiliser tube between described divider resistance and the shunt regulator, the cathode terminal of described voltage-stabiliser tube links to each other with described divider resistance.
7. battery charger according to claim 1 and 2, it is characterized in that: described charging output unit comprises rectifier diode, filter capacitor, common mode inductance and the protective tube that connects successively, also have the cathode terminal of a diode to be connected between described protective tube and the common mode inductance anode tap ground connection.
8. battery charger according to claim 4, it is characterized in that: the input of described voltage regulation unit is connected another secondary coil of described high-tension transformer, comprise rectifier diode, filter capacitor and common mode inductance coil successively, again by after further voltage stabilizing of regulator block, output+5V ,+12V or+the 15V working power.
9. battery charger according to claim 1 and 2 is characterized in that: described charging control unit is a microprocessor, comprises single-chip microcomputer, MCU, CPU.
10. battery charger according to claim 1 and 2, it is characterized in that: described charging control unit comprises the two-stage comparison circuit, the input of described first order comparison circuit receives described sampling unit output, signal after the comparison is outputed to described voltage-regulation unit, output to simultaneously in the comparison circuit of the second level, described second level comparison circuit outputs to comparative result in the described pulse generation unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201663614U CN200994071Y (en) | 2006-12-31 | 2006-12-31 | Battery charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201663614U CN200994071Y (en) | 2006-12-31 | 2006-12-31 | Battery charger |
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| CN200994071Y true CN200994071Y (en) | 2007-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2006201663614U Expired - Lifetime CN200994071Y (en) | 2006-12-31 | 2006-12-31 | Battery charger |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832664A (en) * | 2012-08-17 | 2012-12-19 | 广州市君盘实业有限公司 | Variable frequency charger |
| CN103580246A (en) * | 2013-09-30 | 2014-02-12 | 厦门宇虹达光电科技有限公司 | Lead-acid storage battery charging circuit and charger |
| CN103972960A (en) * | 2014-04-28 | 2014-08-06 | 安徽速力洁电子科技有限公司 | Intermittent high-voltage timing charger |
| CN104113121A (en) * | 2014-08-13 | 2014-10-22 | 钱亚琴 | Charging method for Li-ion battery pack |
| CN104215910A (en) * | 2014-08-13 | 2014-12-17 | 钱亚琴 | Detection and diagnosis method for lithium ion battery pack |
| CN110299741A (en) * | 2019-06-28 | 2019-10-01 | 上海空间电源研究所 | A kind of over-discharge recovery system of battery group |
| CN111342162A (en) * | 2020-01-09 | 2020-06-26 | 长兴太湖能谷科技有限公司 | Full life cycle battery charging management system and method |
| CN112152284A (en) * | 2020-09-09 | 2020-12-29 | 中科开创（广州）智能科技发展有限公司 | Intelligent gap charging management system, method and device for storage battery |
-
2006
- 2006-12-31 CN CNU2006201663614U patent/CN200994071Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832664A (en) * | 2012-08-17 | 2012-12-19 | 广州市君盘实业有限公司 | Variable frequency charger |
| WO2014029235A1 (en) * | 2012-08-17 | 2014-02-27 | 广州市君盘实业有限公司 | Charger having variable frequency square wave intermittent charging technology |
| CN102832664B (en) * | 2012-08-17 | 2015-10-14 | 广州市君盘实业有限公司 | Frequency conversion square-wave intermittent formula intelligent charger |
| CN103580246A (en) * | 2013-09-30 | 2014-02-12 | 厦门宇虹达光电科技有限公司 | Lead-acid storage battery charging circuit and charger |
| CN103972960A (en) * | 2014-04-28 | 2014-08-06 | 安徽速力洁电子科技有限公司 | Intermittent high-voltage timing charger |
| CN103972960B (en) * | 2014-04-28 | 2016-02-03 | 安徽速力洁电子科技有限公司 | Intermittent high-pressure time controlled charger |
| CN104113121A (en) * | 2014-08-13 | 2014-10-22 | 钱亚琴 | Charging method for Li-ion battery pack |
| CN104215910A (en) * | 2014-08-13 | 2014-12-17 | 钱亚琴 | Detection and diagnosis method for lithium ion battery pack |
| CN110299741A (en) * | 2019-06-28 | 2019-10-01 | 上海空间电源研究所 | A kind of over-discharge recovery system of battery group |
| CN111342162A (en) * | 2020-01-09 | 2020-06-26 | 长兴太湖能谷科技有限公司 | Full life cycle battery charging management system and method |
| CN111342162B (en) * | 2020-01-09 | 2020-09-01 | 长兴太湖能谷科技有限公司 | Full life cycle battery charging management system and method |
| CN112152284A (en) * | 2020-09-09 | 2020-12-29 | 中科开创（广州）智能科技发展有限公司 | Intelligent gap charging management system, method and device for storage battery |
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