CN107681712A - A kind of battery charge control circuit - Google Patents
A kind of battery charge control circuit Download PDFInfo
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- CN107681712A CN107681712A CN201710762048.XA CN201710762048A CN107681712A CN 107681712 A CN107681712 A CN 107681712A CN 201710762048 A CN201710762048 A CN 201710762048A CN 107681712 A CN107681712 A CN 107681712A
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- 239000000523 sample Substances 0.000 claims abstract description 64
- 230000005611 electricity Effects 0.000 claims description 9
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
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- 238000010586 diagram Methods 0.000 description 4
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- 238000012544 monitoring process Methods 0.000 description 2
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Classifications
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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
- 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
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
-
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The invention discloses a kind of battery charge control circuit, including cell, multiple first probes, multiple second probes, amplifier circuit, control circuit and warning circuit；Cell includes positive pole and negative pole；Multiple first probes are electrically connected to each other and one end electrically connects with the positive pole of cell, and the other end is connected with amplifier circuit；Multiple second probes are electrically connected to each other and one end electrically connects with the negative pole of cell, and the other end is connected with amplifier circuit；The other end of multiple first probes is also connected with charging current input, and the other end of multiple second probes is also connected with charging current output end；Control circuit is connected with amplifier circuit and warning circuit；Amplifier circuit is used for the charging voltage of positive pole for gathering cell and the charging voltage of negative pole and transmitted after the voltage difference of the charging voltage of positive pole and the charging voltage of negative pole is amplified to control circuit, when voltage difference is more than predeterminated voltage, control circuit control warning circuit alarm.
Description
【Technical field】
The present invention relates to cell art, more particularly to a kind of battery charge control circuit.
【Background technology】
Existing battery preliminary filling cupboard is relatively simple, and battery preliminary filling cupboard uses needle bed-type structure, when pushing needle-bar every time
The phenomenon of battery and probe loose contact be present, if usage time is more long, due to pushing the shake of process appearance every time, easily
The loosening of battery precharged node connecting line is caused, therefore, causes the raising of battery preliminary filling cupboard chemical conversion battery fraction defective, reduces life
Produce efficiency.Other battery charging wire is longer, and when charging current is more than 2A, tens millivolts of line loss pressure drop will be had on charging wire
Difference.If being charged for a long time to batch battery, there is that Individual cells internal resistance is bigger than normal, and lack monitoring to charging process or
Monitoring accuracy is inadequate, then can cause overcharging for battery.
In consideration of it, real be necessary to provide a kind of battery charge control circuit to overcome drawbacks described above.
【The content of the invention】
It is an object of the invention to provide a kind of low cost, battery charging voltage collection is accurate, and collection reliably and stably, can
Battery is avoided the battery charge control circuit overcharged occur.
To achieve these goals, the present invention provides a kind of battery charge control circuit, including cell, multiple first
Probe, multiple second probes, amplifier circuit, control circuit and warning circuit；The cell includes positive pole and negative pole；
The multiple first probe is electrically connected to each other and one end of the multiple first probe electrically connects with the positive pole of the cell,
The other end of the multiple first probe is connected with the amplifier circuit；The multiple second probe is electrically connected to each other and institute
The one end for stating multiple second probes electrically connects with the negative pole of the cell, the other end of the multiple second probe with it is described
Amplifier circuit is connected；The other end of the multiple first probe is also connected with charging current input, and the multiple second
The other end of probe is also connected with charging current output end；External charge source passes through the charging current input and the charging
Current output terminal charges to the cell；The control circuit and the amplifier circuit and the warning circuit
It is connected；The amplifier circuit is used for the charging voltage of positive pole for gathering the cell and the charging voltage of negative pole and will
The charging voltage of the positive pole after the voltage difference amplification of the charging voltage of the negative pole with transmitting to the control circuit, when described
When voltage difference is more than predeterminated voltage, the control circuit controls the warning circuit alarm.
In a preferred embodiment, the amplifier circuit includes operational amplifier, the first to the 5th resistance, the
One electric capacity, the first power supply, clamping unit and second source；The clamping unit includes the first diode and the second diode；Institute
The in-phase input end for stating operational amplifier is connected by the first resistor with the first end of the second resistance, second electricity
Second end of resistance is connected with the other end of the multiple first probe；The reverse input end of the operational amplifier passes through described
Three resistance are connected with the first end of the 4th resistance, and the second end of the 4th resistance is another with the multiple second probe
End is connected；The first end of first electric capacity is connected with the first end of the second resistance, the second end of first electric capacity with
The first end of 4th resistance is connected；The output end of the operational amplifier is connected with the first end of the 5th resistance, institute
The anode that the second end of the 5th resistance is stated with the negative electrode of first diode and second diode is connected, and the described 1st
The plus earth of pole pipe, the negative electrode of second diode are connected with the second source.
In a preferred embodiment, the amplifier circuit also include the second to the 4th electric capacity, the 6th resistance and
7th resistance；The in-phase input end of the operational amplifier passes through second electric capacity also by the 6th resistance eutral grounding
Ground connection；The reverse input end of the operational amplifier is also connected by the 7th resistance with the output end of the operational amplifier
And it is connected by the 3rd electric capacity with the output end of the operational amplifier；The power end of the operational amplifier also passes through institute
State the 4th electric capacity with the earth terminal of the operational amplifier to be connected, the power end of the operational amplifier and the first power supply phase
Even, the earth terminal ground connection of the operational amplifier.
In a preferred embodiment, the control circuit includes main control chip, and the main control chip draws including input
Pin, the first output pin, the second output pin, the 3rd output pin, the 4th output pin and the 5th output pin；The input
Pin is connected with the second end of the 5th resistance, and to receive the voltage difference of amplifier circuit output, described first is defeated
Go out pin, the second output pin, the 3rd output pin, the 4th output pin and the 5th output pin and the warning circuit phase
Connect, to control the warning circuit to alarm when the voltage difference is more than predeterminated voltage.
In a preferred embodiment, the warning circuit includes luminous alarm module and sounding alarm module, described
Luminous alarm module is connected with first to fourth output pin of the main control chip, the sounding alarm module and the master control
5th output pin of chip is connected, when the voltage difference is more than the predeterminated voltage, the first to of the main control chip
Four output pin output signals control the luminous alarm module luminous alarm, the 5th output pin output of the main control chip
Signal controls the sounding alarm module to carry out sounding alarm.
In a preferred embodiment, the luminous alarm module includes first to fourth light-emitting component, the 8th to the
11 resistance and the 3rd power supply；The first end of first light-emitting component is connected with the first output pin of the main control chip,
Second end of first light-emitting component is connected by the 8th resistance with the 3rd power supply, second light-emitting component
First end is connected with the second output pin of the main control chip, and the second end of second light-emitting component passes through the described 9th electricity
Resistance is connected with the 3rd power supply, the first end and the 3rd output pin phase of the main control chip of the 3rd light-emitting component
Even, the second end of the 3rd light-emitting component is connected by the tenth resistance with the 3rd power supply, the described 4th luminous member
The first end of part is connected with the 4th output pin of the main control chip, and the second end of the 4th light-emitting component passes through described
11 resistance are connected with the 3rd power supply.
In a preferred embodiment, first to fourth light-emitting component is light emitting diode, described first to
The first end of 4th light-emitting component and the second end correspond respectively to the negative electrode and anode of the light emitting diode.
In a preferred embodiment, the sounding alarm module includes the 12nd to the 14th resistance, the first electronics
Switch, the 4th power supply and microphone device；5th output pin of the main control chip passes through the 12nd resistance and described the
The first end of one electronic switch is connected, and the first end of first electronic switch is by the 13rd resistance eutral grounding, and described
Second end of one electronic switch is connected by the 14th resistance with the first end of the microphone device, the microphone device
Second end is connected with the 4th power supply, the 3rd end ground connection of first electronic switch.
In a preferred embodiment, first electronic switch is NPN type triode；First electronic switch
First end, the second end and the 3rd end correspond respectively to base stage, colelctor electrode and the emitter stage of NPN type triode.
In a preferred embodiment, the microphone device is buzzer or loudspeaker.
Battery charge control circuit provided by the invention, the positive pole and negative pole of the cell pass through multiple first respectively
Probe and contact and multiple second probes simultaneously contact, it is ensured that cell connects with the first probe and the good of the second probe
Touch, and gathering line and charging wire are separate, it is ensured that the collection of the charging voltage of the cell is not by the shadow of charging current
Ring, ensure that the acquisition precision of charging voltage, and when charging voltage is excessive, alarm signal can be sent, avoid described
Cell overcharges.
【Brief description of the drawings】
Fig. 1 is the theory diagram for the battery charge control circuit that embodiment of the present invention provides.
Fig. 2 is the circuit diagram for the amplifier circuit that embodiment of the present invention provides.
Fig. 3 is the circuit diagram of the control circuit that embodiment of the present invention provides and warning circuit.
【Embodiment】
In order that the purpose of the present invention, technical scheme and advantageous effects become apparent from understanding, below in conjunction with this hair
Accompanying drawing in bright embodiment, the technical scheme in embodiment of the present invention is clearly and completely described, it is clear that retouched
The embodiment stated only a part of embodiment of the present invention, rather than whole embodiments.Based on the reality in the present invention
Apply mode, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made,
Belong to the scope of protection of the invention.
When an element was considered as with another element " being connected ", it can be directly to another element or
It may be simultaneously present centering elements.Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to this hair
The implication that bright those skilled in the art are generally understood that is identical.Term used in the description of the invention herein
It is intended merely to describe the purpose of specific embodiment, it is not intended that in the limitation present invention.
Referring to Fig. 1, a kind of battery charge control circuit 100 provided by the invention, including cell 10, multiple first
Probe 20, multiple second probes 30, amplifier circuit 40, control circuit 50 and warning circuit 60.The cell 10 wraps
Include positive pole 11 and negative pole 12.The multiple first probe 20 be electrically connected to each other and one end of the multiple first probe 20 with it is described
The positive pole 11 of cell 10 electrically connects, the other end O1 of the multiple first probe 20 and the phase of amplifier circuit 40
Even.The multiple second probe 30 be electrically connected to each other and one end of the multiple second probe 30 and the cell 10 it is negative
Pole 12 electrically connects, and the other end O2 of the multiple second probe 30 is connected with the amplifier circuit 40.It is specifically, described more
Individual first probe 20 is contacted again with the positive pole 11 of the cell 10 after being connected with each other and the multiple second probe 30 is mutual
Negative pole 12 after connection again with the cell 10 contacts, and increases the multiple first probe 20 and the cell 10
Positive pole 11 contact area and the multiple second probe 30 and the cell 10 negative pole 12 contact area, can
The problem of battery plus-negative plate is with probe loose contact caused by needle-bar pushes when avoiding the battery from charging.The multiple first probe 20
Other end O1 be also connected with charging current input Iin, the other end O2 of the multiple second probe 30 also with charging current
Output end Iout is connected.External charge source passes through the charging current input Iin and Iout pairs of the charging current output end
The cell 10 is charged.The control circuit 50 and the amplifier circuit 40 and the phase of the warning circuit 60
Even.The amplifier circuit 40 is used for the charging electricity of the charging voltage for gathering the positive pole 11 of the cell 10 and negative pole 12
Press and will be transmitted after the amplification of the voltage difference of the charging voltage of the positive pole 11 and the charging voltage of the negative pole 12 to the control
Circuit 50, when the voltage difference is more than predeterminated voltage, the control circuit 50 controls the warning circuit 60 to alarm.
In the present embodiment, the quantity of first probe 20 is consistent with the quantity of second probe 30 and is respectively three
It is individual.
Referring to Fig. 2, the amplifier circuit 40 includes operational amplifier U1, the first to the 5th resistance R1-R5, the
One electric capacity C1, the first power supply V1, clamping unit U2 and second source V2.The clamping unit U2 includes the first diode D1 and the
Two diode D2.The in-phase input end of the operational amplifier U1 pass through the first resistor R1 and the second resistance R2 the
One end is connected, and the second end of the second resistance R2 is connected with the other end O1 of the multiple first probe 20.The computing is put
Big device U1 reverse input end is connected by the 3rd resistor R3 with the first end of the 4th resistance R4, the 4th resistance
R4 the second end is connected with the other end O2 of the multiple second probe 30.The first end and described second of the first electric capacity C1
Resistance R2 first end is connected, and the second end of the first electric capacity C1 is connected with the first end of the 4th resistance R4.The fortune
The output end for calculating amplifier U1 is connected with the first end of the 5th resistance R5, the second end O3 of the 5th resistance R5 with it is described
First diode D1 negative electrode and the second diode D2 anode are connected, the plus earth of the first diode D1, institute
The negative electrode for stating the second diode D2 is connected with the second source V2.
The amplifier circuit 40 also includes the second to the 4th electric capacity C2-C4, the 6th resistance R6 and the 7th resistance R7.Institute
The in-phase input end for stating operational amplifier U1 is also grounded by the 6th resistance R6 and is grounded by the second electric capacity C2.Institute
The reverse input end for stating operational amplifier U1 is also connected by the 7th resistance R7 with the output end of the operational amplifier U1
And it is connected by the 3rd electric capacity C3 with the output end of the operational amplifier U1.The power end of the operational amplifier U1 is also
It is connected by the 4th electric capacity C4 with the earth terminal of the operational amplifier U1, the power end of the operational amplifier U1 and institute
State the first power supply V1 to be connected, the earth terminal ground connection of the operational amplifier U1.
The battery charge control circuit 100 is respectively by described in the second resistance R2 and the 5th resistance R5 collections
The positive pole 11 of cell 10 and the charging voltage of negative pole 12, it is ensured that the cell 10 is reliably charged, and can be protected again
The precision of the charging voltage of cell 10 collection is demonstrate,proved, prevents cell 10 from the anomaly overcharged occur.
Referring to Fig. 3, the control circuit 50 includes main control chip U3, the main control chip U3 include input pin PD5,
First output pin PK0, the second output pin PK1, the 3rd output pin PK2, the 4th output pin PK3 and the 5th output pin
PJ2.The input pin PD5 of the main control chip U3 is connected with the second end O3 of the 5th resistance R5, to receive amplifier
The voltage difference that circuit 40 exports.The first output pin PK0, the second output pin PK1, the 3rd output pin PK2,
Four output pin PK3 and the 5th output pin PJ2 are connected with the warning circuit 60, and electricity is preset when the voltage difference is more than with this
The warning circuit 60 is controlled to alarm during pressure.The clamping unit U2 prevent the input pin PD5 of the main control chip U3 by
To the damage of surge voltage so that the stability of the main control chip U3 is more preferable, and antijamming capability is stronger.
The warning circuit 60 includes luminous alarm module 61 and sounding alarm module 62.
The luminous alarm module 61 is connected with the first to fourth output pin PK0-PK3 of the main control chip U3, institute
The 5th output pin PJ2 that sounding alarm module 62 is stated with the main control chip U3 is connected, when the voltage difference is more than described pre-
If during voltage, the first to fourth output pin PK0-PK3 output signals of the main control chip U3 control the luminous alarm mould
The luminous alarm of block 61, the 5th output pin PJ2 output signals of the main control chip U3 control the sounding alarm module 62 to enter
Row sounding alarm.
The luminous alarm module 61 includes first to fourth light-emitting component D3-D6, the 8th to the 11st resistance R8-R11
And the 3rd power supply V3.The first end of the first light-emitting component D3 is connected with the first output pin PK0 of the main control chip U3,
The second end of the first light-emitting component D3 is connected by the 8th resistance R8 with the 3rd power supply V3；Described second is luminous
Element D4 first end is connected with the second output pin PK1 of the main control chip U3, and the second of the second light-emitting component D4
End is connected by the 9th resistance R9 with the 3rd power supply V3；The first end of the 3rd light-emitting component D5 and the master control
Chip U3 the 3rd output pin PK2 is connected, the second end of the 3rd light-emitting component D5 by the tenth resistance R10 with
The 3rd power supply V3 is connected；The first end of the 4th light-emitting component D6 and the 4th output pin of the main control chip U3
PK3 is connected, and the second end of the 4th light-emitting component D6 passes through the 11st resistance R11 and the 3rd power supply V3 phases
Even.
In the present embodiment, the first to fourth light-emitting component D3-D6 is light emitting diode, and described first to
Four light-emitting component D3-D6 first end and the second end correspond respectively to the negative electrode and anode of the light emitting diode.
The sounding alarm module 62 includes the 12nd to the 14th resistance R12-R14, the first electronic switch Q1, the 4th electricity
Source V4 and microphone device U4.The 5th output pin PJ2 of the main control chip U3 passes through the 12nd resistance R12 and described the
One electronic switch Q1 first end is connected, and the first end of the first electronic switch Q1 is grounded by the 13rd resistance R13,
The second end of the first electronic switch Q1 is connected by the 14th resistance R14 with the first end of the microphone device U4,
The second end of the microphone device U4 is connected with the 4th power supply V4, the 3rd end ground connection of the first electronic switch Q1.
In the present embodiment, the first electronic switch Q1 is NPN type triode.The of the first electronic switch Q1
One end, the second end and the 3rd end correspond respectively to base stage, colelctor electrode and the emitter stage of NPN type triode.In other embodiment
In, the first electronic switch Q1 can be other switches with similar functions, such as NMOS FETs and IGBT
(Insulated Gate BipolarTransistor, insulated gate bipolar transistor) etc..
The operation principle of the battery charge control circuit 100 is illustrated below.
After the multiple first probe 20 mutually connects side by side, one end and the monomer electricity of the multiple first probe 20
The positive pole 11 in pond 10 contacts, the multiple second probe 30 mutually side by side connect after, one end of the multiple second probe 30 with
The negative pole 12 of the cell 10 contacts, therefore, the electricity of positive pole 11 of the multiple first probe 20 and the cell 10
Connection, the multiple second probe 30 electrically connect with the negative pole 12 of the cell 10, the same phase of the operational amplifier U1
Input gathers the charging voltage of the positive pole 11 of the cell 10, the inverting input collection institute of the operational amplifier U1
The charging voltage of the negative pole 12 of cell 10 is stated, the operational amplifier U1 is born to the charging voltage of the positive pole 11 with described
The voltage difference of the charging voltage of pole 12 is amplified, and the output end of the operational amplifier U1 passes the voltage difference after amplification
The input pin PD5 of the main control chip U3 is transported to, when the voltage difference is more than predeterminated voltage, the of the main control chip U3
One output pin PK0, the second output pin PK1, the 3rd output pin PK2, the 4th output pin PK3 export low level respectively,
The first to fourth light-emitting component D3-D6 lights, the 5th output pin PJ2 output high level of the main control chip U3, institute
The first electronic switch Q1 conductings are stated, the microphone device U4 sends alarm.
The microphone device U4 is buzzer or loudspeaker.
Battery charge control circuit 100 provided by the invention, the positive pole 11 and negative pole 12 of the cell 10 lead to respectively
Cross multiple first probes 20 and contact and multiple second probes 30 and contact, it is ensured that the probe 20 of cell 10 and first
And second probe 30 good contact, and gathering line and charging wire are separate, it is ensured that the charging voltage of the cell 10
Collection do not influenceed by charging current, ensure that the acquisition precision of charging voltage, and when charging voltage is excessive, can
Alarm signal is sent, avoids the cell 10 from overcharging.
The present invention is not restricted to described in specification and embodiment, therefore for the personnel of familiar field
Additional advantage and modification is easily achieved, therefore in the essence of the universal limited without departing substantially from claim and equivalency range
In the case of refreshing and scope, the present invention is not limited to specific details, representational equipment and shown here as the diagram with description
Example.
Claims (10)
- A kind of 1. battery charge control circuit, it is characterised in that：Including cell, multiple first probes, multiple second probes, Amplifier circuit, control circuit and warning circuit；The cell includes positive pole and negative pole；The multiple first probe phase Mutually one end of electrical connection and the multiple first probe electrically connects with the positive pole of the cell, the multiple first probe The other end is connected with the amplifier circuit；The multiple second probe be electrically connected to each other and the multiple second probe one End electrically connects with the negative pole of the cell, and the other end of the multiple second probe is connected with the amplifier circuit； The other end of the multiple first probe is also connected with charging current input, and the other end of the multiple second probe is also with filling Electric current output terminal is connected；External charge source is by the charging current input and the charging current output end to the list Body battery is charged；The control circuit is connected with the amplifier circuit and the warning circuit；The amplifier Circuit is used for the charging voltage of positive pole for gathering the cell and the charging voltage of negative pole and by the charging of positive pole electricity Pressure after the voltage difference amplification of the charging voltage of the negative pole with transmitting to the control circuit, when the voltage difference is more than default electricity During pressure, the control circuit controls the warning circuit alarm.
- 2. battery charge control circuit as claimed in claim 1, it is characterised in that：The amplifier circuit is put including computing Big device, the first to the 5th resistance, the first electric capacity, the first power supply, clamping unit and second source；The clamping unit includes first Diode and the second diode；The in-phase input end of the operational amplifier passes through the first resistor and the second resistance First end is connected, and the second end of the second resistance is connected with the other end of the multiple first probe；The operational amplifier Reverse input end be connected by the 3rd resistor with the first end of the 4th resistance, the second end of the 4th resistance with The other end of the multiple second probe is connected；The first end of first electric capacity is connected with the first end of the second resistance, Second end of first electric capacity is connected with the first end of the 4th resistance；The output end of the operational amplifier and described the The first end of five resistance is connected, the second end of the 5th resistance and the negative electrode of first diode and second diode Anode be connected, the plus earth of first diode, the negative electrode of second diode is connected with the second source.
- 3. battery charge control circuit as claimed in claim 2, it is characterised in that：The amplifier circuit also includes second To the 4th electric capacity, the 6th resistance and the 7th resistance；The in-phase input end of the operational amplifier is also connect by the 6th resistance Ground, and pass through second capacity earth；The reverse input end of the operational amplifier also by the 7th resistance with it is described The output end of operational amplifier is connected and is connected by the 3rd electric capacity with the output end of the operational amplifier；The computing The power end of amplifier is also connected by the 4th electric capacity with the earth terminal of the operational amplifier, the operational amplifier Power end is connected with first power supply, the earth terminal ground connection of the operational amplifier.
- 4. battery charge control circuit as claimed in claim 3, it is characterised in that：The control circuit includes main control chip, The main control chip includes input pin, the first output pin, the second output pin, the 3rd output pin, the 4th output pin And the 5th output pin；The input pin is connected with the second end of the 5th resistance, to receive amplifier circuit output The voltage difference, first output pin, the second output pin, the 3rd output pin, the 4th output pin and the 5th are defeated Go out pin with the warning circuit to be connected, to control the warning circuit to alarm when the voltage difference is more than predeterminated voltage.
- 5. battery charge control circuit as claimed in claim 4, it is characterised in that：The warning circuit includes luminous alarm mould Block and sounding alarm module, the luminous alarm module is connected with first to fourth output pin of the main control chip, described Sounding alarm module is connected with the 5th output pin of the main control chip, when the voltage difference is more than the predeterminated voltage, First to fourth output pin output signal of the main control chip controls the luminous alarm module luminous alarm, the master control 5th output pin output signal of chip controls the sounding alarm module to carry out sounding alarm.
- 6. battery charge control circuit as claimed in claim 5, it is characterised in that：The luminous alarm module include first to 4th light-emitting component, the 8th to the 11st resistance and the 3rd power supply；The first end of first light-emitting component and the master control core First output pin of piece is connected, and the second end of first light-emitting component passes through the 8th resistance and the 3rd power supply phase Even, the first end of second light-emitting component is connected with the second output pin of the main control chip, second light-emitting component The second end be connected by the 9th resistance with the 3rd power supply, the first end of the 3rd light-emitting component and the master control 3rd output pin of chip is connected, and the second end of the 3rd light-emitting component passes through the tenth resistance and the 3rd power supply It is connected, the first end of the 4th light-emitting component is connected with the 4th output pin of the main control chip, the described 4th luminous member Second end of part is connected by the 11st resistance with the 3rd power supply.
- 7. battery charge control circuit as claimed in claim 6, it is characterised in that：First to fourth light-emitting component is Light emitting diode, the first end of first to fourth light-emitting component and the second end correspond respectively to the moon of the light emitting diode Pole and anode.
- 8. battery charge control circuit as claimed in claim 6, it is characterised in that：The sounding alarm module includes the 12nd To the 14th resistance, the first electronic switch, the 4th power supply and microphone device；5th output pin of the main control chip passes through institute The first end that the 12nd resistance is stated with first electronic switch is connected, and the first end of first electronic switch passes through described 13 resistance eutral groundings, the second end of first electronic switch pass through the first end of the 14th resistance and the microphone device It is connected, the second end of the microphone device is connected with the 4th power supply, the 3rd end ground connection of first electronic switch.
- 9. battery charge control circuit as claimed in claim 8, it is characterised in that：First electronic switch is NPN type three Pole pipe；First end, the second end and the 3rd end of first electronic switch correspond respectively to the base stage of NPN type triode, current collection Pole and emitter stage.
- 10. battery charge control circuit as claimed in claim 8, it is characterised in that：The microphone device is buzzer or loudspeaker .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710762048.XA CN107681712A (en) | 2017-08-30 | 2017-08-30 | A kind of battery charge control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710762048.XA CN107681712A (en) | 2017-08-30 | 2017-08-30 | A kind of battery charge control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN107681712A true CN107681712A (en) | 2018-02-09 |
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| CN201710762048.XA Pending CN107681712A (en) | 2017-08-30 | 2017-08-30 | A kind of battery charge control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038741A (en) * | 2018-08-16 | 2018-12-18 | 上海艾为电子技术股份有限公司 | A kind of charging circuit and switched charge chip and its charge current sample circuit |
| CN111725577A (en) * | 2019-03-22 | 2020-09-29 | 深圳市瑞能实业股份有限公司 | Battery formation circuit and battery formation device |
-
2017
- 2017-08-30 CN CN201710762048.XA patent/CN107681712A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038741A (en) * | 2018-08-16 | 2018-12-18 | 上海艾为电子技术股份有限公司 | A kind of charging circuit and switched charge chip and its charge current sample circuit |
| CN109038741B (en) * | 2018-08-16 | 2023-11-28 | 上海艾为电子技术股份有限公司 | Charging circuit, switch charging chip and charging current sampling circuit thereof |
| CN111725577A (en) * | 2019-03-22 | 2020-09-29 | 深圳市瑞能实业股份有限公司 | Battery formation circuit and battery formation device |
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Application publication date: 20180209 |