CN204156512U - Battery charger protective circuit - Google Patents
Battery charger protective circuit Download PDFInfo
- Publication number
- CN204156512U CN204156512U CN201420498622.7U CN201420498622U CN204156512U CN 204156512 U CN204156512 U CN 204156512U CN 201420498622 U CN201420498622 U CN 201420498622U CN 204156512 U CN204156512 U CN 204156512U
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- battery charger
- chip microcomputer
- microcomputer treatment
- 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.)
- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Battery charger protective circuit, it relates to and a kind ofly has the protective circuit that anti-alternating voltage significantly changes and the battery charger that causes damages.It is characterized in that it comprises insulating power supply transforming circuit (1), isolation voltage sample circuit (2), single-chip microcomputer treatment circuit (4), control relay circuit (3), AC voltage sampling output circuit (5), insulating power supply transforming circuit (1) is connected with single-chip microcomputer treatment circuit (4) respectively with isolation voltage sample circuit (2), and control relay circuit (3) is also connected with single-chip microcomputer treatment circuit (4) respectively with AC voltage sampling output circuit (5).The features such as the function that when the utility model has under-voltage, movement response speed AC voltage sampling that is fast, high accuracy isolation exports.
Description
Technical field
The utility model relates to battery charger protective circuit, is specifically related to a kind ofly have the protective circuit that anti-alternating voltage significantly changes and the battery charger that causes damages.
Background technology
Common overvoltage-undervoltage protector is when voltage fluctuation, and reflection of cutting off the electricity supply wants 1-2 second slowly, cannot play the object of protection battery charger.When voltage fluctuation is to 400V, protector self damages.
Utility model content
The features such as the purpose of this utility model is to provide battery charger protective circuit, the function that when it has under-voltage, movement response speed AC voltage sampling that is fast, high accuracy isolation exports.
In order to solve the problem existing for background technology, the utility model is by the following technical solutions: it comprises insulating power supply transforming circuit 1, isolation voltage sample circuit 2, single-chip microcomputer treatment circuit 4, control relay circuit 3, AC voltage sampling output circuit 5, insulating power supply transforming circuit 1 is connected with single-chip microcomputer treatment circuit 4 respectively with isolation voltage sample circuit 2, and control relay circuit 3 is also connected with single-chip microcomputer treatment circuit 4 respectively with AC voltage sampling output circuit 5.
Described insulating power supply transforming circuit 1, it is the step-down transformer that an input ac voltage reaches 400V, reliable and stable working power can both be provided for protective circuit when alternating voltage is in 100V to 400V voltage fluctuation, and common protector is with regard to likely when alternating voltage 400V, self burns out, described isolation voltage sample circuit 2, it is a Miniature precision voltage transformer, described single-chip microcomputer treatment circuit 4 is microprocessors of 8 low costs, described AC voltage sampling output circuit 5 is the low voltage pulse signals exported by Single-chip Controlling, the alternating voltage of its frequency and input is proportional, provide conveniently for other products reads alternating voltage.
The advantage that this practicality has: movement response speed is fast when overvoltage/undervoltage; reach Millisecond to cut off the electricity supply thus the function playing protection battery charger; according to the fluctuation situation intellectual analysis when function of supplying power sending into voltage during power transmission; thus effectively can prevent the damage of battery charger; also provide the function that the AC voltage sampling of high accuracy isolation exports, for the access of other products and detection provide conveniently simultaneously.
Accompanying drawing illustrates:
Fig. 1 is the utility model structure principle chart.
Embodiment
With reference to Fig. 1, it comprises insulating power supply transforming circuit 1, isolation voltage sample circuit 2, single-chip microcomputer treatment circuit 4, control relay circuit 3, AC voltage sampling output circuit 5, insulating power supply transforming circuit 1 is connected with single-chip microcomputer treatment circuit 4 respectively with isolation voltage sample circuit 2, and control relay circuit 3 is also connected with single-chip microcomputer treatment circuit 4 respectively with AC voltage sampling output circuit 5.
Insulating power supply transforming circuit 1, effect is to provide protective circuit power supply.Isolation voltage sample circuit 2, effect is to provide high-precision sampling voltage and gives single-chip microcomputer treatment circuit 4, carrys out the break-make of control relay circuit 3, thus play a protective role through the analysis of single-chip microcomputer.Through single-chip microcomputer treatment circuit 4, the pulse signal of reflection alternating voltage change is sent in AC voltage sampling output circuit 5 in addition, what AC voltage sampling output circuit 5 exported is the pulse signal proportional with alternating voltage, is convenient to other equipment reading alternating voltage and carries out data processing.
Claims (5)
1. battery charger protective circuit; it is characterized in that it comprises insulating power supply transforming circuit (1), isolation voltage sample circuit (2), single-chip microcomputer treatment circuit (4), control relay circuit (3), AC voltage sampling output circuit (5); insulating power supply transforming circuit (1) is connected with single-chip microcomputer treatment circuit (4) respectively with isolation voltage sample circuit (2), and control relay circuit (3) is also connected with single-chip microcomputer treatment circuit (4) respectively with AC voltage sampling output circuit (5).
2. battery charger protective circuit according to claim 1; it is characterized in that described insulating power supply transforming circuit (1) is the step-down transformer that an input ac voltage reaches 400V; can both provide reliable and stable working power for protective circuit when alternating voltage is in 100V to 400V voltage fluctuation, and common protector is with regard to likely self burns out when alternating voltage 400V.
3. battery charger protective circuit according to claim 1, is characterized in that described isolation voltage sample circuit (2) is a Miniature precision voltage transformer.
4. battery charger protective circuit according to claim 1, is characterized in that described single-chip microcomputer treatment circuit (4) is the microprocessor of 8 low costs.
5. battery charger protective circuit according to claim 1; it is characterized in that described AC voltage sampling output circuit (5) is a low voltage pulse signal exported by Single-chip Controlling; the alternating voltage of its frequency and input is proportional, provides conveniently for other products reads alternating voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498622.7U CN204156512U (en) | 2014-09-01 | 2014-09-01 | Battery charger protective circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498622.7U CN204156512U (en) | 2014-09-01 | 2014-09-01 | Battery charger protective circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204156512U true CN204156512U (en) | 2015-02-11 |
Family
ID=52514600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420498622.7U Expired - Fee Related CN204156512U (en) | 2014-09-01 | 2014-09-01 | Battery charger protective circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204156512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026013A (en) * | 2016-05-19 | 2016-10-12 | 安徽信邦塑业有限公司 | Protection circuit for storage battery charger |
-
2014
- 2014-09-01 CN CN201420498622.7U patent/CN204156512U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026013A (en) * | 2016-05-19 | 2016-10-12 | 安徽信邦塑业有限公司 | Protection circuit for storage battery charger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xie Chongliang Inventor before: Wang Zhibin |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG ZHIBIN TO: XIE CHONGLIANG |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20180901 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |