CN206962505U - Anti- reverse battery protection circuit and charger - Google Patents
Anti- reverse battery protection circuit and charger Download PDFInfo
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- CN206962505U CN206962505U CN201720917532.0U CN201720917532U CN206962505U CN 206962505 U CN206962505 U CN 206962505U CN 201720917532 U CN201720917532 U CN 201720917532U CN 206962505 U CN206962505 U CN 206962505U
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- circuit
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
A kind of anti-reverse battery protection circuit and charger are the utility model is related to, this anti-reverse battery protection circuit includes：Input and the output end for connecting battery；A control circuit is wherein connected between the positive pole of input and the positive pole of output end, when accumulator positive connects, the control circuit is suitable to control input, output end conducting forms charge circuit, and in reverse connection of accumulator, the control circuit is suitable to the negative pole of control signal and the negative pole of output end disconnects, to cut off charge circuit；Anti- reverse battery protection circuit of the present utility model and its method of work, charger can effectively prevent battery over-discharge after battery is by reversal connection; extend the service life of battery; potential safety hazard is prevented, and charger caused by also successfully preventing accumulator polarity reversal connection damages.
Description
Technical field
It the utility model is related to a kind of anti-reverse battery protection circuit and charger.
Background technology
Battery demand increases increasingly at present, and battery is charged and depends on charger, but the output end of charger
Positive and negative electrode and accumulator anode and cathode between line often due to neglecting misconnection, cause battery can not charge or failure.
Therefore, in order to solve the above problems, it is necessary to design a kind of anti-reverse battery protection circuit and its method of work, charging
Device.
Utility model content
The purpose of this utility model is to provide a kind of anti-reverse battery protection circuit and charger.
In order to solve the above-mentioned technical problem, the utility model provides a kind of anti-reverse battery protection circuit, including：Input
End and the output end for connecting battery；A control circuit is connected with wherein between input and output end, in battery
When just connecing, the control circuit is suitable to control input, output end conducting forms charge circuit, and in reverse connection of accumulator, institute
State control circuit to disconnect suitable for the negative pole of control signal and the negative pole of output end, to cut off charge circuit.
Further, the control circuit includes：First switch circuit, by the second switch electricity of first switch circuit control
Road；Connected between the negative pole of input and the negative pole of output end an IGCT；Connect in accumulator positive or during reversal connection, first opens
Powered-down road controls turn on thyristors or closing by second switch circuit.
Further, the first switch circuit includes：PNP triode, the emitter stage connection input of the PNP triode,
The positive pole line of output end, the base stage of the PNP triode connect a bleeder circuit, and the both ends of the bleeder circuit connect respectively
Input, the positive and negative electrode line of output end；And the second switch circuit includes NPN triode, the collection of the PNP triode
Electrode connects the base stage of the NPN triode by a resistance, and the colelctor electrode of the NPN triode connects a high level, its emitter stage
Connect the gate pole of IGCT；When accumulator positive connects, the base level of the PNP triode is less than emitter stage level, the PNP
Triode ON, cathode voltage is accessed to the base stage of NPN triode, make NPN triode saturation conduction, so that gate pole obtains height
Level, i.e. turn on thyristors, form the charge circuit；In reverse connection of accumulator, the base level of the PNP triode is higher than
Emitter stage level, the PNP triode cut-off, NPN triode cut-off, IGCT are closed, and cut off the charge circuit.
Further, the base stage of the NPN triode is connected with the first RC parallel circuits over the ground, and
The IGCT negative electrode connection input negative pole, its anode connect output end negative pole, and gate pole with
The 2nd RC parallel circuits are connected between the negative pole of input.
Another aspect, the utility model additionally provide a kind of method of work of anti-reverse battery protection circuit, wherein
The anti-reverse battery protection circuit includes：Input and the output end for connecting battery；Wherein inputting
A control circuit is connected between end and output end；The method of work includes：When accumulator positive connects, the control circuit is fitted
Charge circuit is formed in control input, output end conducting, and in reverse connection of accumulator, the control circuit is suitable to control input
The negative pole at end and the negative pole of output end disconnect, to cut off charge circuit.
Further, the control circuit includes：First switch circuit, by the second switch electricity of first switch circuit control
Road；Connected between the negative pole of input and the negative pole of output end an IGCT；Connect in accumulator positive or during reversal connection, first opens
Powered-down road controls turn on thyristors or closing by second switch circuit.
Further, the first switch circuit includes：PNP triode, the emitter stage connection input of the PNP triode,
The positive pole line of output end, the base stage of the PNP triode connect a bleeder circuit, and the both ends of the bleeder circuit connect respectively
Input, the positive and negative electrode line of output end；And the second switch circuit includes NPN triode, the collection of the PNP triode
Electrode connects the base stage of the NPN triode by a resistance, and the colelctor electrode of the NPN triode connects a high level, its emitter stage
Connect the gate pole of IGCT；When accumulator positive connects, the base level of the PNP triode is less than emitter stage level, the PNP
Triode ON, cathode voltage is accessed to the base stage of NPN triode, make NPN triode saturation conduction, so that gate pole obtains height
Level, i.e. turn on thyristors, form the charge circuit；In reverse connection of accumulator, the base level of the PNP triode is higher than
Emitter stage level, the PNP triode cut-off, NPN triode cut-off, IGCT are closed, and cut off the charge circuit.
The third aspect, the utility model additionally provide a kind of charger.
The charger includes described anti-reverse battery protection circuit；By the anti-reverse battery protection circuit to storing
Battery is charged.
The beneficial effects of the utility model are anti-reverse battery protection circuit of the present utility model and its method of work, to fill
Electrical equipment can effectively prevent battery over-discharge after battery is by reversal connection, extend the service life of battery, prevent
Potential safety hazard, and charger caused by also successfully preventing accumulator polarity reversal connection damages.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the circuit theory diagrams of anti-reverse battery protection circuit of the present utility model.
Embodiment
The utility model is described in further detail presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram,
Only illustrate basic structure of the present utility model in a schematic way, therefore it only shows the composition relevant with the utility model.
Embodiment 1
As shown in figure 1, the utility model provides a kind of anti-reverse battery protection circuit, including：Input and for even
Connect the output end of battery；A control circuit is connected with wherein between input and output end, it is described when accumulator positive connects
Control circuit is suitable to control input, output end conducting forms charge circuit, and in reverse connection of accumulator, the control circuit is fitted
Disconnected in the negative pole of control signal and the negative pole of output end, to cut off charge circuit.
The definition that accumulator positive connects in the technical program is connected for the positive pole of battery with the positive pole of output end, battery
Negative pole be connected with the negative pole of output end；Reverse connection of accumulator, then the positive pole of battery be connected with the negative pole of output end, battery
Negative pole is connected with the positive pole of output end.
Specifically, the control circuit includes：First switch circuit, by the second switch electricity of first switch circuit control
Road；Connect an IGCT Q1 between the negative pole of input and the negative pole of output end；Connect in accumulator positive or during reversal connection, first
On-off circuit controls IGCT Q1 on and off by second switch circuit.
Further, the first switch circuit includes：PNP triode V1, the PNP triode V1 emitter stage connection are defeated
Enter, the positive pole line of output end, the base stage of the PNP triode V1 connects a bleeder circuit, the both ends point of the bleeder circuit
It Lian Jie not input, the positive and negative electrode line of output end；And the second switch circuit includes NPN triode V2, the PNP tri-
Pole pipe V1 colelctor electrode connects NPN triode V2 base stage, NPN triode V2 colelctor electrode connection one by a resistance R3
High level, its emitter stage connection IGCT Q1 gate pole；When accumulator positive connects, the base level of the PNP triode V1 is low
In emitter stage level, the PNP triode V1 conductings, cathode voltage is accessed to NPN triode V2 base stage, makes the poles of NPN tri-
Pipe V2 saturation conductions, so that gate pole obtains high level, i.e. IGCT Q1 conductings, form the charge circuit；In reverse connection of accumulator
When, the base level of the PNP triode V1 is higher than emitter stage level, the PNP triode V1 cut-offs, and NPN triode V2 is cut
Only, IGCT Q1 is closed, and cuts off the charge circuit.
Also, IGCT Q1 anode is connected with one end of bleeder circuit.
The base stage of the NPN triode V2 is connected with the first RC parallel circuits, and the negative electrode of the IGCT Q1 over the ground
The negative pole of input is connected, its anode connects the negative pole of output end, and is connected between gate pole and the negative pole of input the
Two RC parallel circuits.
Wherein, the first RC parallel circuits include resistance R6 and electric capacity C02, the 2nd RC parallel circuits include resistance R4 and
Electric capacity C01.Influence of the pulse voltage to NPN triode V2 base stages can effectively be prevented by the first RC parallel circuits, effectively
Avoid due to pulse voltage trigger NPN triode saturation conduction；And can effectively it be prevented by the 2nd RC parallel circuits
Only influence of the pulse voltage to gate circuit transistor gate, effectively avoid because pulse voltage triggers turn on thyristors.
Embodiment 2
On the basis of embodiment 1, the present embodiment 2 provides a kind of method of work of anti-reverse battery protection circuit.
The method of work includes：When accumulator positive connects, the control circuit is suitable to control input, output end conducting structure
Into charge circuit, and in reverse connection of accumulator, the control circuit is suitable to the negative pole of control signal and the negative pole of output end
Disconnect, to cut off charge circuit.
The control circuit includes：First switch circuit, the second switch circuit controlled by the first switch circuit；It is located at
Connect an IGCT Q1 between the negative pole of input and the negative pole of output end；Connect in accumulator positive or during reversal connection, first switch electricity
Road controls IGCT Q1 on and off by second switch circuit.
The first switch circuit includes：PNP triode V1, the PNP triode V1 emitter stage connection input, output
The positive pole line at end, the base stage of the PNP triode V1 connect a bleeder circuit, and the both ends of the bleeder circuit connect defeated respectively
Enter, the positive and negative electrode line of output end；And the second switch circuit includes NPN triode V2, the PNP triode V1's
Colelctor electrode connects NPN triode V2 base stage by a resistance, and NPN triode V2 colelctor electrode connects a high level, its
Emitter stage connection IGCT Q1 gate pole；When accumulator positive connects, the base level of the PNP triode V1 is less than emitter stage electricity
It is flat, the PNP triode V1 conductings, cathode voltage is accessed to NPN triode V2 base stage, leads NPN triode V2 saturations
It is logical, so that gate pole obtains high level, i.e. IGCT Q1 conductings, form the charge circuit；In reverse connection of accumulator, the PNP
Triode V1 base level is higher than emitter stage level, the PNP triode V1 cut-offs, NPN triode V2 cut-offs, IGCT Q1
Close, cut off the charge circuit.
Embodiment 3
On the basis of embodiment 1, the present embodiment 3 provides a kind of charger.
The charger includes anti-reverse battery protection circuit as described in Example 1；Protected by the anti-battery reversal connection
Protection circuit charges to battery.
Charger caused by successfully preventing accumulator polarity reversal connection by anti-reverse battery protection circuit damages.
Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, pass through above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item is real
The content being not limited to new technical scope on specification, it is necessary to which its technology is determined according to right
Property scope.
Claims (5)
- A kind of 1. anti-reverse battery protection circuit, it is characterised in that including：Input and the output end for connecting battery；WhereinA control circuit is connected between input and output end,When accumulator positive connects, the control circuit is suitable to control input, output end conducting forms charge circuit, andIn reverse connection of accumulator, the control circuit is suitable to the negative pole of control signal and the negative pole of output end disconnects, with cut-out Charge circuit.
- 2. anti-reverse battery protection circuit according to claim 1, it is characterised in thatThe control circuit includes：First switch circuit, the second switch circuit controlled by the first switch circuit；Connected between the negative pole of input and the negative pole of output end an IGCT；Connect in accumulator positive or during reversal connection, first switch circuit passes through second switch circuit and controls turn on thyristors or closing.
- 3. anti-reverse battery protection circuit according to claim 2, it is characterised in thatThe first switch circuit includes：PNP triode, the emitter stage connection input of the PNP triode, the positive pole of output end Line, the base stage of the PNP triode connect a bleeder circuit, and the both ends of the bleeder circuit connect input, output end respectively Positive and negative electrode line；AndThe second switch circuit includes NPN triode, and the colelctor electrode of the PNP triode connects the NPN tri- by a resistance The base stage of pole pipe, the colelctor electrode of the NPN triode connect a high level, and its emitter stage connects the gate pole of IGCT；When accumulator positive connects, the base level of the PNP triode is less than emitter stage level, and the PNP triode conducting will Cathode voltage accesses to the base stage of NPN triode, makes NPN triode saturation conduction, so that gate pole obtains high level, i.e. IGCT Conducting, forms the charge circuit；In reverse connection of accumulator, the base level of the PNP triode is higher than emitter stage level, and the PNP triode is ended, NPN triode is ended, and IGCT is closed, and cuts off the charge circuit.
- 4. anti-reverse battery protection circuit according to claim 3, it is characterised in thatThe base stage of the NPN triode is connected with the first RC parallel circuits over the ground, andThe negative pole of the negative electrode connection input of the IGCT, its anode connect the negative pole of output end, and in gate pole and input The 2nd RC parallel circuits are connected between the negative pole at end.
- 5. a kind of charger, it is characterised in that including the anti-reverse battery protection circuit as described in one of claim 1-4；Battery is charged by the anti-reverse battery protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720917532.0U CN206962505U (en) | 2017-07-26 | 2017-07-26 | Anti- reverse battery protection circuit and charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720917532.0U CN206962505U (en) | 2017-07-26 | 2017-07-26 | Anti- reverse battery protection circuit and charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206962505U true CN206962505U (en) | 2018-02-02 |
Family
ID=61381472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720917532.0U Expired - Fee Related CN206962505U (en) | 2017-07-26 | 2017-07-26 | Anti- reverse battery protection circuit and charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206962505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116345639A (en) * | 2023-05-16 | 2023-06-27 | 深圳市高斯宝电气技术有限公司 | Automatic reverse connection preventing circuit based on operational amplifier control relay |
-
2017
- 2017-07-26 CN CN201720917532.0U patent/CN206962505U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116345639A (en) * | 2023-05-16 | 2023-06-27 | 深圳市高斯宝电气技术有限公司 | Automatic reverse connection preventing circuit based on operational amplifier control relay |
| CN116345639B (en) * | 2023-05-16 | 2023-10-27 | 深圳市高斯宝电气技术有限公司 | Automatic reverse connection preventing circuit based on operational amplifier control relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20180202 Termination date: 20210726 |