CN107681724A - A kind of constant current voltage limiting formula lithium battery charger - Google Patents
A kind of constant current voltage limiting formula lithium battery charger Download PDFInfo
- Publication number
- CN107681724A CN107681724A CN201710972102.3A CN201710972102A CN107681724A CN 107681724 A CN107681724 A CN 107681724A CN 201710972102 A CN201710972102 A CN 201710972102A CN 107681724 A CN107681724 A CN 107681724A
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- Prior art keywords
- resistance
- triode
- amplifier
- connect
- diode
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 30
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
-
- H02J7/0077—
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0034—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting circuits
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of constant current voltage limiting formula lithium battery charger, including triode T1, resistance R1, amplifier U1, resistance R10, electric capacity C6 and potentiometer RP1, resistance R10 one end connects power supply VCC and triode T1 emitter stages respectively, triode T1 base stages distinguish connecting triode T2 emitter stages and electric capacity C6, the electric capacity C6 other ends distinguish connecting triode T3 colelctor electrodes and resistance R1, resistance R1 other end connecting triode T2 base stages, triode T2 colelctor electrodes distinguish connecting triode T1 colelctor electrodes, resistance R2 and diode D6 positive poles, the resistance R2 other ends connect resistance R3 and diode D4 negative poles respectively, diode D4 positive poles connect resistance R4 and are grounded.Constant current voltage limiting formula lithium battery charger of the present invention, circuit structure is simple, and safety and stability, small volume, cost is low, is especially suitable for promoting the use of.
Description
Technical field
The present invention relates to a kind of lithium battery charger, specifically a kind of constant current voltage limiting formula lithium battery charger.
Background technology
Lithium battery as it is a kind of can be with the power store of Reusability, using very extensive, but lithium battery makes
Whether often overcharge with it that relation is very big with the life-span, frequent overcharge, can high degree shorten life-span of lithium battery, it is existing
Some lithium battery charging circuits are complicated, and cost is high, and it is single function to be present, the shortcomings of without charge protection etc..
The content of the invention
It is an object of the invention to provide a kind of constant current voltage limiting formula lithium battery charger, to solve to carry in above-mentioned background technology
The problem of going out.
To achieve the above object, the present invention provides following technical scheme：
A kind of constant current voltage limiting formula lithium battery charger, including triode T1, resistance R1, amplifier U1, resistance R10, electric capacity C6 and electricity
Position device RP1, described resistance R10 one end connect power supply VCC and triode T1 emitter stages respectively, and triode T1 base stages connect three respectively
Pole pipe T2 emitter stages and electric capacity C6, electric capacity C6 other ends difference connecting triode T3 colelctor electrodes and resistance R1, the resistance R1 other ends
Connecting triode T2 base stages, triode T2 colelctor electrodes difference connecting triode T1 colelctor electrodes, resistance R2 and diode D6 positive poles, electricity
The resistance R2 other ends connect resistance R3 and diode D4 negative poles respectively, and diode D4 positive poles connection resistance R4 is simultaneously grounded, and resistance R4 is another
One end connects the resistance R3 other ends, resistance R7 and amplifier U3 in-phase ends respectively, and amplifier U3 end of oppisite phase connects resistance R5 and electricity respectively
Position device RP1 one end, the potentiometer RP1 other ends connect power supply VCC, light emitting diode D7 positive poles and amplifier U4 power ends respectively, send out
Optical diode D7 negative poles connect resistance R13, resistance R13 other ends connection amplifier U4 output ends, and amplifier U4 in-phase ends connect respectively
The resistance R5 other ends and resistance R6, resistance R6 other ends connection amplifier U4 earth terminals are simultaneously grounded, and the potentiometer RP1 slide plates pass through
Resistance R8 connection amplifier U1 in-phase ends, amplifier U1 end of oppisite phase connect the resistance R7 other ends and resistance R9, the resistance R9 other ends respectively
Connect respectively the resistance R10 other ends, diode D5 positive poles, electric capacity C5, amplifier U1 output ends, amplifier U2 output ends, resistance R14 and
Electric capacity C4, diode D5 negative pole connect resistance R11 and triode T3 base stages respectively, and the resistance R11 other ends connect electric capacity C5 respectively
The other end and triode T3 emitter stages are simultaneously grounded, and the amplifier U3 output ends connect resistance R19 and triode T4 base stages respectively, electricity
The resistance R19 other ends connect power supply VCC, resistance R18 and resistance R17 respectively, resistance R18 other end connecting triode T4 colelctor electrodes,
Triode T4 emitter stages connect grounding resistance R16, the resistance R17 other ends and amplifier U2 in-phase ends, amplifier U2 end of oppisite phase point respectively
Not Lian Jie resistance R15, the resistance R14 other ends and the electric capacity C4 other ends, the resistance R15 other ends connect respectively grounding resistance R12 and
Lithium battery E negative poles, lithium battery E cathode connecting diode D6 negative poles.
As the further scheme of the present invention：Described amplifier U1, U2, U3 and U4 use LM339.
As further scheme of the invention：The power supply VCC voltages are 12V.
Compared with prior art, the beneficial effects of the invention are as follows：Constant current voltage limiting formula lithium battery charger of the present invention, circuit knot
Structure is simple, and safety and stability, small volume, cost is low, is especially suitable for promoting the use of.
Brief description of the drawings
Fig. 1 is the circuit diagram of constant current voltage limiting formula lithium battery charger.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, in the embodiment of the present invention, a kind of constant current voltage limiting formula lithium battery charger, including triode T1, resistance
R1, amplifier U1, resistance R10, electric capacity C6 and potentiometer RP1, resistance R10 one end connect power supply VCC and triode T1 transmittings respectively
Pole, triode T1 base stages difference connecting triode T2 emitter stages and electric capacity C6, electric capacity the C6 other end difference connecting triode T3 collection
Electrode and resistance R1, resistance R1 other end connecting triode T2 base stages, triode T2 colelctor electrodes difference connecting triode T1 current collections
Pole, resistance R2 and diode D6 positive poles, the resistance R2 other ends connect resistance R3 and diode D4 negative poles, diode D4 positive poles respectively
Connection resistance R4 is simultaneously grounded, and the resistance R4 other ends connect the resistance R3 other ends, resistance R7 and amplifier U3 in-phase ends, amplifier U3 respectively
End of oppisite phase connects resistance R5 and potentiometer RP1 one end respectively, and the potentiometer RP1 other ends connect power supply VCC, light emitting diode respectively
D7 positive poles and amplifier U4 power ends, light emitting diode D7 negative poles connection resistance R13, the connection amplifier U4 outputs of the resistance R13 other ends
End, amplifier U4 in-phase ends connect the resistance R5 other ends and resistance R6 respectively, and resistance R6 other ends connection amplifier U4 earth terminals simultaneously connect
Ground, potentiometer RP1 slide plates by resistance R8 connection amplifier U1 in-phase ends, amplifier U1 end of oppisite phase connect respectively the resistance R7 other ends and
Resistance R9, resistance the R9 other end connect the resistance R10 other ends, diode D5 positive poles, electric capacity C5, amplifier U1 output ends, fortune respectively
U2 output ends, resistance R14 and electric capacity C4 are put, diode D5 negative poles connect resistance R11 and triode T3 base stages, resistance R11 respectively
The other end connects the electric capacity C5 other ends and triode T3 emitter stages and is grounded respectively, and amplifier U3 output ends connect resistance R19 respectively
With triode T4 base stages, the resistance R19 other ends connect power supply VCC, resistance R18 and resistance R17 respectively, and the resistance R18 other ends connect
Triode T4 colelctor electrodes are connect, triode T4 emitter stages connect grounding resistance R16, the resistance R17 other ends and the same phases of amplifier U2 respectively
End, amplifier U2 end of oppisite phase connect resistance R15, the resistance R14 other ends and the electric capacity C4 other ends, resistance R15 other ends difference respectively
Connect grounding resistance R12 and lithium battery E negative poles, lithium battery E cathode connecting diode D6 negative poles.
Amplifier U1, U2, U3 and U4 use LM339.
Power supply VCC voltages are 12V.
The present invention operation principle be：When lithium battery E voltages are relatively low, charger operation safeguards charged state in low current
Under, operation principle is that U3 in-phase ends current potential is less than end of oppisite phase, U3 output low potentials, and T4 ends, U2 in-phase ends current potential about 0.18V,
Now charging current about 250mA, constant-current circuit are made up of R14, U2, T1 and its perimeter circuit；As charging continues, lithium electricity
Pond E voltages are gradually risen, and when lithium battery E voltages are more than 9V, charger is transferred under high current fast charge pattern, U3 in-phase end current potentials
Higher than end of oppisite phase, U3 output high potentials, T4 conductings, U2 in-phase end current potentials are about 0.48V, and charger constant output about 1A electric currents are given
Lithium battery E charges；When lithium battery E is close to full charge, charger is transferred under pressure limiting floating charge state automatically, charging current now
Can be by being gradually reduced under quick-charge state, to the complete full charges of lithium battery E, charging current is only 10~30mA, to mend
Fill the electricity that lithium battery E loses by self discharge.
This circuit is provided with reversed polarity protection circuit, is made up of D4, U3, U2, T1 and peripheral cell, when lithium battery E reversal connections,
Accident will not occur for charger limitation output current, and charging instruction is made up of U4, D7 and peripheral cell, and during charging, D7 is lighted, and is filled
After electrical equipment enters floating charge state, D7 extinguishes, and represents that charging terminates.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (1)
1. a kind of constant current voltage limiting formula lithium battery charger, including triode T1, resistance R1, amplifier U1, resistance R10, electric capacity C6 and
Potentiometer RP1, it is characterised in that described resistance R10 one end connects power supply VCC and triode T1 emitter stages, triode T1 respectively
Base stage distinguishes connecting triode T2 emitter stages and electric capacity C6, electric capacity the C6 other end difference connecting triode T3 colelctor electrodes and resistance
R1, resistance R1 other end connecting triode T2 base stages, triode T2 colelctor electrodes difference connecting triode T1 colelctor electrodes, resistance R2 and
Diode D6 positive poles, the resistance R2 other ends connect resistance R3 and diode D4 negative poles, diode D4 positive poles connection resistance R4 respectively
And be grounded, the resistance R4 other ends connect the resistance R3 other ends, resistance R7 and amplifier U3 in-phase ends, amplifier U3 end of oppisite phase difference respectively
Connection resistance R5 and potentiometer RP1 one end, the potentiometer RP1 other ends connect power supply VCC, light emitting diode D7 positive poles and fortune respectively
U4 power ends, light emitting diode D7 negative poles connection resistance R13 are put, the resistance R13 other ends connect amplifier U4 output ends, and amplifier U4 is same
Phase end connects the resistance R5 other ends and resistance R6 respectively, and resistance R6 other ends connection amplifier U4 earth terminals are simultaneously grounded, the current potential
Device RP1 slide plates connect the resistance R7 other ends and resistance R9 respectively by resistance R8 connection amplifier U1 in-phase ends, amplifier U1 end of oppisite phase,
The resistance R9 other ends connect the resistance R10 other ends, diode D5 positive poles, electric capacity C5, amplifier U1 output ends, amplifier U2 outputs respectively
End, resistance R14 and electric capacity C4, diode D5 negative pole connect resistance R11 and triode T3 base stages, the resistance R11 other ends point respectively
The electric capacity C5 other ends and triode T3 emitter stages and it Lian Jie not be grounded, the amplifier U3 output ends connect resistance R19 and three respectively
Pole pipe T4 base stages, the resistance R19 other ends connect power supply VCC, resistance R18 and resistance R17, resistance R18 other ends connection three respectively
Pole pipe T4 colelctor electrodes, triode T4 emitter stages connect grounding resistance R16, the resistance R17 other ends and amplifier U2 in-phase ends respectively, fortune
Put U2 end of oppisite phase and connect resistance R15, the resistance R14 other ends and the electric capacity C4 other ends respectively, the resistance R15 other ends connect respectively to be connect
Ground resistance R12 and lithium battery E negative poles, lithium battery E cathode connecting diode D6 negative poles；
Described amplifier U1, U2, U3 and U4 use LM339；The power supply VCC voltages are 12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710972102.3A CN107681724A (en) | 2015-10-28 | 2015-10-28 | A kind of constant current voltage limiting formula lithium battery charger |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710972102.3A CN107681724A (en) | 2015-10-28 | 2015-10-28 | A kind of constant current voltage limiting formula lithium battery charger |
| CN201510727004.4A CN105375562B (en) | 2015-10-28 | 2015-10-28 | A kind of constant current voltage limiting formula lithium battery charger |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510727004.4A Division CN105375562B (en) | 2015-10-28 | 2015-10-28 | A kind of constant current voltage limiting formula lithium battery charger |
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| Publication Number | Publication Date |
|---|---|
| CN107681724A true CN107681724A (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710972102.3A Pending CN107681724A (en) | 2015-10-28 | 2015-10-28 | A kind of constant current voltage limiting formula lithium battery charger |
| CN201510727004.4A Active CN105375562B (en) | 2015-10-28 | 2015-10-28 | A kind of constant current voltage limiting formula lithium battery charger |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510727004.4A Active CN105375562B (en) | 2015-10-28 | 2015-10-28 | A kind of constant current voltage limiting formula lithium battery charger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113904453A (en) * | 2021-10-08 | 2022-01-07 | 重庆电哥科技(集团)有限公司 | Backup energy storage parallel operation system and control method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116231814B (en) * | 2023-05-09 | 2023-07-21 | 西安交通大学医学院第一附属医院 | Battery pack safety control method and system and electric anastomat thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101039043A (en) * | 2006-03-15 | 2007-09-19 | 张晓云 | Solar energy lighting emergency system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2188818Y (en) * | 1994-01-31 | 1995-02-01 | 清华大学 | Full-automatic control constant-voltage and constant current-limiting electronic charger |
| JP2013126325A (en) * | 2011-12-15 | 2013-06-24 | Panasonic Eco Solutions Power Tools Co Ltd | Charging circuit |
| CN205123330U (en) * | 2015-10-28 | 2016-03-30 | 邹小辉 | Constant current voltage limiting formula lithium batteries ware |
-
2015
- 2015-10-28 CN CN201710972102.3A patent/CN107681724A/en active Pending
- 2015-10-28 CN CN201510727004.4A patent/CN105375562B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101039043A (en) * | 2006-03-15 | 2007-09-19 | 张晓云 | Solar energy lighting emergency system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113904453A (en) * | 2021-10-08 | 2022-01-07 | 重庆电哥科技(集团)有限公司 | Backup energy storage parallel operation system and control method thereof |
| CN113904453B (en) * | 2021-10-08 | 2023-10-27 | 重庆电哥科技(集团)有限公司 | Backup type energy storage parallel operation system and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105375562B (en) | 2018-01-26 |
| CN105375562A (en) | 2016-03-02 |
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Application publication date: 20180209 |