CN204179695U - Solar energy lead acid battery charge circuit - Google Patents
Solar energy lead acid battery charge circuit Download PDFInfo
- Publication number
- CN204179695U CN204179695U CN201420510648.9U CN201420510648U CN204179695U CN 204179695 U CN204179695 U CN 204179695U CN 201420510648 U CN201420510648 U CN 201420510648U CN 204179695 U CN204179695 U CN 204179695U
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- circuit
- charging
- exports
- lead acid
- voltage stabilizing
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- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a kind of solar energy lead acid battery charge circuit, input power part comprises civil power and exports two parts power supply by the output of transformer rectification circuit and solar panel, two parts power supply exports through selector switch and connects Voltage stabilizing module, Voltage stabilizing module exports and connects charging main circuit, modes selecting and indicator light circuit connect charging control circuit, charging control circuit exports pwm control signal and controls charging to charging main circuit, charging main circuit exports and connects lead acid accumulator both positive and negative polarity, charges the battery.Can select solar recharging and commercial power charged two kinds of supply power modes, applied widely, require lower to illumination condition, photovoltaic panel does not need special customized, selects universal models on market, can charge to all kinds lead acid accumulator according to battery; Adopt Δ 2V second-order increment algorithm to charge to battery, charging rate is fast, and loss is less, little to cell damage; Second order voltage, second order electric current and pulse three kinds of charge modes can be selected.
Description
Technical field
The utility model relates to a kind of battery charger, particularly a kind of solar energy lead acid battery charge circuit.
Background technology
Under the background that fossil energy is day by day rare, new forms of energy are widely used.Solar energy, as a kind of energy of cleanliness without any pollution, is progressively promoted.How inexhaustible Application of Solar Energy key subjects in studying at present are become in real life.But owing to being subject to the restriction of illumination condition, photovoltaic power generation grid-connecting runs and encounters a lot of problem, and this receives restriction with regard to making the popularization in large-sized photovoltaic power station.
Lead acid accumulator due to its manufacturing cost lattice low, capacity is large, cheap and obtain and use widely.Along with the development of lead acid battery charge theory, the theoretical gradual perfection of quick charge, making to utilize limited solar energy to carry out lead acid accumulator quick charge to greatest extent becomes possibility.
Summary of the invention
The utility model is the problem popularizing reasonable combination for the development of solar energy and lead acid accumulator; propose a kind of solar energy lead acid battery charge circuit; solar energy or civil power can be utilized to realize charging and the protection of lead acid accumulator; charging interval is short, and effectively can extend the useful life of lead acid accumulator.
The technical solution of the utility model is: a kind of solar energy lead acid battery charge circuit, comprises input power part, Voltage stabilizing module, charging main circuit, charging control circuit, modes selecting and indicator light circuit; Input power part comprises civil power and exports two parts power supply by the output of transformer rectification circuit and solar panel, two parts power supply exports through selector switch and connects Voltage stabilizing module, Voltage stabilizing module exports and connects charging main circuit, modes selecting and indicator light circuit connect charging control circuit, charging control circuit exports pwm control signal and controls charging to charging main circuit, charging main circuit exports and connects lead acid accumulator both positive and negative polarity, charges the battery.
Described Voltage stabilizing module comprises two-stage voltage stabilizing, and input voltage exports charging voltage to charging main circuit through first order voltage stabilizing chip LM2576, and first order voltage stabilizing circuit exports to charging control circuit chip power supply through second level voltage stabilizing chip LM7805.Described charging control circuit chip selects the BQ2031 of TI company.
Described charging main circuit is buck circuit, and rechargeable battery positive pole connects flat ripple inductance and charging control circuit divider resistance, and negative electrode of chargeable battery connects charging control circuit chip.
The beneficial effects of the utility model are: the utility model solar energy lead acid battery charge circuit, solar recharging and commercial power charged two kinds of supply power modes can be selected, solar energy charge independence can be used in the situation of illumination abundance, can mains-supplied be selected when illumination is not enough; Applied widely, require lower to illumination condition, photovoltaic panel does not need special customized, selects universal models on market, can charge to all kinds lead acid accumulator according to battery; Adopt Δ 2V second-order increment algorithm to charge to battery, charging rate is fast, and loss is less, little to cell damage; Second order voltage, second order electric current and pulse three kinds of charge modes can be selected.
Accompanying drawing explanation
Fig. 1 is the utility model photovoltaic panel and mains-supplied power circuit diagram;
Fig. 2 is charging control circuit figure in the utility model solar charging circuit;
Fig. 3 is the main circuit diagram that charges in the utility model solar charging circuit;
Fig. 4 is modes selecting and indicator light partial circuit figure in the utility model solar charging circuit.
Embodiment
Photovoltaic panel and mains-supplied power circuit diagram as shown in Figure 1, solar charging circuit input power part divides solar panel and transformer rectification circuit two parts, and civil power is exported by transformer rectification circuit and solar panel output exports through selector switch.Input power part exports through Voltage stabilizing module, Voltage stabilizing module comprises two-stage voltage stabilizing, the voltage stabilization that input power part is exported by power voltage stabilizing chip LM2576 by the first order, at required voltage, can select LM2576 plural parallel stage according to capacity of lead acid battery, guarantee steady electricity supply; The second level utilizes LM7805 that first order output voltage is converted into 5V, for intelligent chip BQ2031 powers.
Charging control circuit figure as shown in Figure 2, acp chip is the BQ2031 that TI company produces, this chip can select second order voltage, second order electric current and pulse three kinds of modes to charge to lead acid accumulator, control charging modes as shown in table 1, charge switch Model Design can make its loss in large current charge situation drop to minimum, and wherein MOD pin is PWM output pin.
Table 1
Charge main circuit diagram as shown in Figure 3, charging main circuit is buck circuit, rechargeable battery positive pole connects flat ripple inductance and charging control circuit divider resistance, and negative electrode of chargeable battery connects charging control circuit acp chip 7 pin, and power electronic device break-make sends PWM by BQ2031 and controls.
Modes selecting and indicator light partial circuit figure as shown in Figure 4, this part is according to the parameter of lead acid accumulator and modes selecting design peripheral circuit.Charging indicator light contrast is as shown in table 2.
Table 2
The original paper parameter of design circuit with reference to institute's charging lead acid accumulator given parameters, the relevant parameters such as the charging voltage of lead acid accumulator of specifically can programming, maximum charging current, charging temperature bucking voltage and PWM cycle.Charging modes can be chosen as second order constant voltage charge, second order current charges and pulse current charge, is selected by 3 switches in Fig. 4 circuit.
When using solar recharging mode, solar panel is connected into Battery part in circuit, notices that both positive and negative polarity connection should be identical with circuit in accompanying drawing, selector switch pushes 1 grade, cell panel keeps flat in the sun, connects lead acid accumulator, can realize solar energy to Lead-acid Battery Intelligent Charging; Time commercial power charged, switch on power, selector switch pushes 3 grades, connects lead acid accumulator, can realize civil power to Lead-acid Battery Intelligent Charging.Should follow the state according to LED status determination battery in charging, LED status is with reference to table 2.Enter when safeguarding charged state, represent that lead acid accumulator is full of, can deenergization.
According to described scheme, design a battery specifications FK7.2-12 (12V7.2Ah/20hr) lead acid battery charge circuit, solar recharging and commercial power charged can have been realized, use 30W solar panel, at fair weather charging interval 3 hours, respond well.
Claims (4)
1. a solar energy lead acid battery charge circuit, is characterized in that, comprises input power part, Voltage stabilizing module, charging main circuit, charging control circuit, modes selecting and indicator light circuit; Input power part comprises civil power and exports two parts power supply by the output of transformer rectification circuit and solar panel, two parts power supply exports through selector switch and connects Voltage stabilizing module, Voltage stabilizing module exports and connects charging main circuit, modes selecting and indicator light circuit connect charging control circuit, charging control circuit exports pwm control signal and controls charging to charging main circuit, charging main circuit exports and connects lead acid accumulator both positive and negative polarity, charges the battery.
2. solar energy lead acid battery charge circuit according to claim 1, it is characterized in that, described Voltage stabilizing module comprises two-stage voltage stabilizing, input voltage exports charging voltage to charging main circuit through first order voltage stabilizing chip LM2576, and first order voltage stabilizing circuit exports to charging control circuit chip power supply through second level voltage stabilizing chip LM7805.
3. solar energy lead acid battery charge circuit according to claim 2, it is characterized in that, described charging control circuit chip selects the BQ2031 of TI company.
4. solar energy lead acid battery charge circuit according to claim 1, it is characterized in that, described charging main circuit is buck circuit, and rechargeable battery positive pole connects flat ripple inductance and charging control circuit divider resistance, and negative electrode of chargeable battery connects charging control circuit chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420510648.9U CN204179695U (en) | 2014-09-05 | 2014-09-05 | Solar energy lead acid battery charge circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420510648.9U CN204179695U (en) | 2014-09-05 | 2014-09-05 | Solar energy lead acid battery charge circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204179695U true CN204179695U (en) | 2015-02-25 |
Family
ID=52568470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420510648.9U Expired - Fee Related CN204179695U (en) | 2014-09-05 | 2014-09-05 | Solar energy lead acid battery charge circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204179695U (en) |
-
2014
- 2014-09-05 CN CN201420510648.9U patent/CN204179695U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151202 Address after: 200090 Pingliang Road, Shanghai, No. 2103, No. Patentee after: Shanghai University of Electric Power Patentee after: Shanghai Putian Zhongke Energy Technology Co., Ltd. Address before: 200090 Pingliang Road, Shanghai, No. 2103, No. Patentee before: Shanghai University of Electric Power |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20160905 |