CN103682236A - Lead-acid battery protection circuit - Google Patents
Lead-acid battery protection circuit Download PDFInfo
- Publication number
- CN103682236A CN103682236A CN201310353094.6A CN201310353094A CN103682236A CN 103682236 A CN103682236 A CN 103682236A CN 201310353094 A CN201310353094 A CN 201310353094A CN 103682236 A CN103682236 A CN 103682236A
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- CN
- China
- Prior art keywords
- voltage
- lead
- acid battery
- input
- linked
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention relates to a lead-acid battery protection circuit. The lead-acid battery protection circuit is characterized by at least comprising a lead-acid battery (1), a voltage sampling unit (2), a voltage comparing unit (3) and a prompt circuit (4), wherein the output of the lead-acid battery (1) is connected with the input end of the voltage sampling unit (2), and the voltage sampling unit (2) is used for sampling the input voltage of the lead-acid battery and outputting two different voltages to the voltage comparing unit (3); after comparing the two input sampling voltages, the voltage comparing unit (3) generates two output voltages to the prompt circuit (4) so as to perform adjusting indication on a power supply loop of the lead-acid battery (1). By adopting a mature, reliable, highly adaptable, simple-structure and advanced-technology lead-acid battery voltage detection circuit, the lead-acid battery protection circuit provided by the invention has the under-voltage detecting function of a traditional circuit, and can be applied to the field of intelligent control by virtue of expanding.
Description
Technical field
The present invention relates to a kind of voltage detecting circuit, particularly lead-acid battery protective circuit.
Background technology
The electric motor car lead-acid battery voltage detecting circuit of traditional scheme can only be rough battery electric quantity is carried out to under-voltage detection, reminding user whether need charging.And complicated need to pass through single chip machine controlling circuit, and because operating voltage is below 5V, affected by environment larger, often there will be false triggering, can not effectively to lead-acid battery, be protected.
Summary of the invention
The object of this invention is to provide the lead-acid battery protective circuit that a kind of security reliability is high, be applicable to electric motor car lead-acid battery voltage detecting circuit.
The object of the present invention is achieved like this, a kind of lead-acid battery protective circuit, it is characterized in that: lead-acid battery protective circuit, it is characterized in that: at least comprise lead-acid battery, voltage sample unit, voltage comparison unit and cue circuit, lead-acid battery output is linked into voltage sample unit input, sample to the lead-acid battery voltage of input in voltage sample unit, the different voltage of two-way is exported to voltage comparison unit in voltage sample unit, voltage comparison unit compares rear generation two road output voltages to the sampled voltage of input, to cue circuit, lead-acid battery current supply circuit is regulated to indication.
The positive pole of described lead-acid battery accesses by resistance R 2 after the negative terminal of voltage-stabiliser tube D1, and R3 is linked into the negative pole of lead-acid battery after the dividing potential drop sampling unit that R4 is composed in series.
Described voltage comparison unit is LM319, comprise: LM319 a and LM319 b, the anode of voltage-stabiliser tube D1 is linked into together the power cathode of lead-acid battery negative pole and LM319 after resistance R 1, the tie point of voltage-stabiliser tube D1 and resistance R 1 is linked into the positive input of LM319 b, form voltage ratio reference potential, the tie point of resistance R 3 and R4 is linked into the backward end input of LM319 b, with previous forward input reference current potential relatively after, from a comparative voltage of output output of LM319 b; In like manner, R2, the tie point of R3 is linked into the positive input of LM319 a, form voltage ratio reference potential, the anode of voltage-stabiliser tube D1 and the tie point of R1 are linked into the reverse input end of LM319 a and the positive source of LM319, with the reference potential of previous forward input relatively after, from the output of LM319 a, export another comparative voltage.
Advantage of the present invention: the present invention is according to electric motor car lead-acid battery feature in actual use, adopted a kind of mature and reliable, strong adaptability, simple in structure, advanced technology lead-acid battery voltage detecting circuit, it is except possessing the under-voltage measuring ability of traditional circuit, by expanding, can also be applied to field of intelligent control, as according to the service condition of current lead-acid battery voltage, the speed of a motor vehicle of electric motor car carried out to restrictive adjusting, thereby effectively promote the service time of lead-acid battery.
The simplicity of design of whole system design, practical, the operating efficiency of whole system is increased substantially, the comparative voltage of output can be expanded according to actual requirement, the maximum use potentiality of excavating product, and can not make the cost of product significantly improve.
Accompanying drawing explanation
Below in conjunction with embodiment accompanying drawing, the invention will be further described:
Fig. 1 is a kind of lead-acid battery protective circuit of the present invention structural front view:
Fig. 2 is circuit diagram of the present invention.
In figure: 1. lead-acid battery, 2. voltage sample unit, 3. voltage comparison unit, 4. cue circuit.
Embodiment
As shown in Figure 1; lead-acid battery protective circuit; it is characterized in that: at least comprise lead-acid battery 1, voltage sample unit 2, voltage comparison unit 3, cue circuit 4; lead-acid battery 1 output is linked into voltage sample unit 2 inputs; the lead-acid battery voltage of the 2 pairs of inputs in voltage sample unit is sampled; the different voltage of two-way is exported to voltage comparison unit 3 in voltage sample unit 2, and the sampled voltage of 3 pairs of inputs of voltage comparison unit compares rear generation two road output voltages and regulates indication to 4 pairs of lead-acid battery 1 current supply circuits of cue circuit.
As Fig. 2 shows, the positive pole of lead-acid battery accesses by resistance R 2 after the negative terminal of voltage-stabiliser tube D1, and R3 is linked into the negative pole of lead-acid battery after the dividing potential drop sampling unit 2 that R4 forms.Described voltage comparison unit 3 is LM319, comprise: LM319 a and LM319 b, the anode of voltage-stabiliser tube D1 is linked into together the power cathode of lead-acid battery negative pole and LM319 after resistance R 1, the tie point of voltage-stabiliser tube D1 and resistance R 1 is linked into the positive input of LM319 b, form voltage ratio reference potential, the tie point of resistance R 3 and R4 is linked into the backward end input of LM319 b, with previous forward input reference current potential relatively after, from a comparative voltage of output output of LM319 b; In like manner, R2, the tie point of R3 is linked into the positive input of LM319 a, form voltage ratio reference potential, the anode of voltage-stabiliser tube D1 and the tie point of R1 are linked into the reverse input end of LM319 a and the positive source of LM319, with the reference potential of previous forward input relatively after, from the output of LM319 a, export another comparative voltage.
Advantage of the present invention: the simplicity of design of whole system design, practical, the operating efficiency of whole system is increased substantially, the comparative voltage of output can be expanded according to actual requirement, the maximum use potentiality of excavating product, and can not make the cost of product significantly improve.
The parts that the present embodiment does not describe in detail and structure belong to well-known components and common structure or the conventional means of the industry, here no longer narration.
Claims (3)
1. a lead-acid battery protective circuit, it is characterized in that: lead-acid battery protective circuit, it is characterized in that: at least comprise lead-acid battery (1), voltage sample unit (2), voltage comparison unit (3) and cue circuit (4), lead-acid battery (1) output is linked into voltage sample unit (2) input, sample to the lead-acid battery voltage of input in voltage sample unit (2), the different voltage of two-way is exported to voltage comparison unit (3) in voltage sample unit (2), voltage comparison unit (3) compares rear generation two road output voltages to the sampled voltage of input, to cue circuit (4), lead-acid battery (1) current supply circuit is regulated to indication.
2. a kind of lead-acid battery protective circuit according to claim 1; it is characterized in that: the positive pole of described lead-acid battery (1) accesses by resistance R 2 after the negative terminal of voltage-stabiliser tube D1; R3, is linked into the negative pole of lead-acid battery after the dividing potential drop sampling unit (2) that R4 is composed in series.
3. a kind of lead-acid battery protective circuit according to claim 2, it is characterized in that: described voltage comparison unit (3) is LM319, comprise: LM319 a and LM319 b, the anode of voltage-stabiliser tube D1 is linked into together the power cathode of lead-acid battery negative pole and LM319 after resistance R 1, the tie point of voltage-stabiliser tube D1 and resistance R 1 is linked into the positive input of LM319 b, form voltage ratio reference potential, the tie point of resistance R 3 and R4 is linked into the backward end input of LM319 b, with previous forward input reference current potential relatively after, a comparative voltage of output output from LM319 b, in like manner, R2, the tie point of R3 is linked into the positive input of LM319 a, form voltage ratio reference potential, the anode of voltage-stabiliser tube D1 and the tie point of R1 are linked into the reverse input end of LM319 a and the positive source of LM319, with the reference potential of previous forward input relatively after, from the output of LM319 a, export another comparative voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310353094.6A CN103682236A (en) | 2013-11-04 | 2013-11-04 | Lead-acid battery protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310353094.6A CN103682236A (en) | 2013-11-04 | 2013-11-04 | Lead-acid battery protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103682236A true CN103682236A (en) | 2014-03-26 |
Family
ID=50319076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310353094.6A Withdrawn CN103682236A (en) | 2013-11-04 | 2013-11-04 | Lead-acid battery protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103682236A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403650A (en) * | 2020-03-27 | 2020-07-10 | 福建华祥电源科技有限公司 | High-efficient protection device of lead-acid batteries |
-
2013
- 2013-11-04 CN CN201310353094.6A patent/CN103682236A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403650A (en) * | 2020-03-27 | 2020-07-10 | 福建华祥电源科技有限公司 | High-efficient protection device of lead-acid batteries |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20140326 |