CN107069863A - A kind of constant-current charging of battery control circuit and charger - Google Patents
A kind of constant-current charging of battery control circuit and charger Download PDFInfo
- Publication number
- CN107069863A CN107069863A CN201710226919.6A CN201710226919A CN107069863A CN 107069863 A CN107069863 A CN 107069863A CN 201710226919 A CN201710226919 A CN 201710226919A CN 107069863 A CN107069863 A CN 107069863A
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- charging
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- battery
- major loop
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- 238000010277 constant-current charging Methods 0.000 title claims abstract description 21
- 238000007600 charging Methods 0.000 claims abstract description 92
- 238000005070 sampling Methods 0.000 claims abstract description 36
- 239000004065 semiconductor Substances 0.000 claims description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
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- H02J7/0077—
Abstract
The invention provides a kind of constant-current charging of battery control circuit and charger, the charging control circuit includes charge control module and the switching tube for being arranged on charging major loop, wherein, the current sample end of charge control module is connected with charging major loop, for the charging current sampled on charging major loop, the output end of charge control module and the control end of switching tube are connected, make-and-break time for the charging current controlling switch pipe according to sampling makes the charging current on charging major loop reach setting value, and maintains the setting value.The present invention realizes the charging overcurrent protection of battery module, and realizes the constant-current charge of battery module, it is to avoid over-charging of battery causes the generation of interlock protection phenomenon, improves the service life of battery.
Description
Technical field
The invention belongs to battery management system technical field, more particularly to a kind of constant-current charging of battery control circuit and charging
Machine.
Background technology
As modern society's science and technology is constantly progressive, electronic communication product have developed rapidly, and many electronic products all make battery
Originated for main energy, the battery charger of many product facilities very safe very well can not all charge to lithium battery,
Often result in overcharging for battery and damage the life-span of battery, and then influence the performance of its function of supplying power.
Battery system is formed in parallel as the energy storage device in Large Copacity energy storage field by several battery modules, if pair
It is uneven existing due to there is uneven stream between each battery module in parallel during dry charging battery module in parallel
As especially during charge initiation, when occurring, Individual cells module charging current is excessive, starts overcurrent protection function, disconnects
Charging paths where the battery module, stop charging, but charging current can then flow to other battery modules, cause other
The charging current of battery module is excessive, so as to trigger interlock protection phenomenon, and then battery module in parallel can not be continued to charge,
Function of supplying power of the influence battery module to equipment；Equally in charging process, individual modules occur excessively stream, failure, full of etc. stop
When only charging, other battery modules of the current direction of charging device can also cause chain overcurrent protection phenomenon, influence battery module
To the function of supplying power of equipment.
The content of the invention
It is an object of the invention to provide a kind of constant-current charging of battery control circuit and charger, for solving charging current
It is excessive to cause over-charging of battery and cause the problem of chain overcurrent protection phenomenon of battery module occurs.
To achieve the above object, the technical scheme is that：
A kind of constant-current charging of battery controls circuit, including charge control module and for being arranged on opening on charging major loop
Guan Guan, wherein, the current sample end of charge control module is connected with charging major loop, for the charging sampled on charging major loop
Electric current, the output end of charge control module and the control end of switching tube are connected, for the charging current controlling switch according to sampling
The make-and-break time of pipe makes the charging current on charging major loop reach setting value, and maintains the setting value.
Further, the charge control module includes XL4001 chips and driver element, and the electric current of XL4001 chips is adopted
Sample end is connected to form sampling circuit by sampling resistor with charging major loop, and the power take-off of XL4001 chips is single by driving
Member is connected with the control end of switching tube.
Further, the driver element is ZXGD3005E6 chips.
Further, the switching tube is IGBT or metal-oxide-semiconductor.
Further, the sampling circuit includes at least two parallel branches, wherein, string is provided with relative on each branch road
The switch element and sampling resistor answered.
Further, described XL4001 chips and driver element are powered using same power module.
Further, the current sample end of XL4001 chips is connected by voltage regulation resistance with voltage stabilizing branch road, steady for providing
Fixed voltage.
Present invention also offers a kind of charger, including constant-current charging of battery control circuit, the circuit includes charge control
Module and the switching tube being arranged on charger charging major loop, wherein, current sample end and the charging of charge control module are led
Loop is connected, for the charging current sampled on charging major loop, the output end of charge control module and the control end of switching tube
Connection, the make-and-break time for the charging current controlling switch pipe according to sampling reaches the charging current on charging major loop to set
Definite value, and maintain the setting value.
Further, the charge control module includes XL4001 chips and driver element, and the electric current of XL4001 chips is adopted
Sample end is connected to form sampling circuit by sampling resistor with charging major loop, and the power take-off of XL4001 chips is single by driving
Member is connected with switching tube.
Further, the driver element is ZXGD3005E6 chips.
The beneficial effects of the invention are as follows：
The constant-current charging of battery control circuit that the present invention is provided, the circuit includes charge control module and filled for being arranged on
Switching tube on electric major loop, wherein, the current sample end of charge control module is connected with charging major loop, for charging of sampling
Charging current on major loop, the output end of charge control module and the control end of switching tube are connected, for filling according to sampling
The make-and-break time of electric current-controlled switch pipe makes the charging current on charging major loop reach setting value, and maintains the setting value,
And then maintenance realizes the charging overcurrent protection of battery module, and realize the constant current of battery module to the constant-current charge of battery
Charging, it is to avoid over-charging of battery causes the generation of interlock protection phenomenon, improves the service life of battery.
The charger of the present invention includes constant-current charging of battery and controls circuit, and the circuit includes charge control module and for setting
The switching tube on charging major loop is put, wherein, the current sample end of charge control module is connected with charging major loop, for adopting
Charging current on sample charging major loop, the output end of charge control module and the control end of switching tube are connected, adopted for basis
The make-and-break time of the charging current controlling switch pipe of sample makes the charging current on charging major loop reach setting value, and maintains this to set
Definite value, and then the constant-current charge to battery is maintained, the charging overcurrent protection of battery module is realized, and realize battery module
Constant-current charge, will not cause to overcharge to battery, improve the service life of battery.
Brief description of the drawings
Fig. 1 is the charging system for including the constant-current charging circuit of the present invention.
Embodiment
The embodiment to the present invention is further described below in conjunction with the accompanying drawings：
A kind of embodiment of charger of the present invention：
A kind of charger, including constant-current charging of battery control circuit, the circuit include being arranged on opening on charging major loop
Pipe and charge control module are closed, wherein, the current sample end of charge control module is connected with charging major loop, for charging of sampling
Charging current on major loop, the output end of charge control module and the control end of switching tube are connected, for filling according to sampling
The make-and-break time of electric current-controlled switch pipe makes the charging current on charging major loop reach setting value, and maintains the setting value.
The charge control module of the present embodiment includes XL4001 chip U1 and ZXGD3005E6 chip U2, XL4001 chips
Current sample end is connected to form sampling circuit by sampling resistor with charging major loop, and the power take-off of XL4001 chips passes through
The control end connection of ZXGD3005E6 chips and switching tube；Sampling circuit includes two parallel branches, wherein, gone here and there on a branch road
Provided with first switching element and the first sampling resistor, second switch element and the second sampling resistor are equipped with another branch road；
Battery system power module includes power supply and controlling brancher, and power supply is connected by controlling brancher and charge control module
Connect；Also include voltage stabilizing branch road, the current sample end of XL4001 chips is connected to provide steady by voltage regulation resistance and voltage stabilizing branch road
Fixed voltage.
Specifically as shown in figure 1, constant-current charge module includes the charging resistor R1 of low resistance high-power high-accuracy, filtered electrical
Feel L, metal-oxide-semiconductor Q1；Power module includes PNP type triode Q2, resistance R6, R7；Size of current selecting module includes relay S1
With S2, sampling resistor R2 and R3；Charge control module is XL4001 chips.The positive pole of battery module connects the positive pole of charging device
DC_CHARGE+, filter inductance L one end connect the negative pole of battery, one end connection metal-oxide-semiconductor Q1 drain electrode, metal-oxide-semiconductor Q1 source electrode point
Do not connected in one end of relay S1, S2 output end and charging resistor R1 one end, metal-oxide-semiconductor Q1 control end be Q1 base stage with
Chip U2 output end connection, the negative pole DC_CHARGE- connections of sampling resistor the R1 other end and charging device, relay S1,
One end that the other end of S2 output ends selects resistance R2, R3 with charging current respectively is connected, relay S1 and sampling resistor
Two branch roads in parallel with relay S2 and sampling resistor R3 compositions R2, R2, R3 other end and voltage regulation resistance R4 one end and
5 pin of XL4001 chips are connected, and voltage pin is detected wherein 5 pin are constant current, and 7 pin and 8 pin connect triode Q2 source electrode, are
XL4001 chip operations provide power supply, and triode Q2 base stage is also associated with resistance R7, triode Q2 emitter stage and+15V electricity
Source is connected, and XL4001 chips U1 1 pin and 2 pin are connected with chip U2, generation metal-oxide-semiconductor Q1 trigger pulse after being driven through chip U2
P2。
The charger of the present embodiment also includes voltage stabilizing circuit, it is possible to provide high-accuracy voltage is 2.5V, and the voltage is steady
Volt circuit includes voltage-stabiliser tube D1, electric capacity C1, voltage regulation resistance R4, R5, the R4 other end, R5 one end, C1 one end and voltage-stabiliser tube
D1 negative electrode connection, D1 anode connects the C1 other end and is connected with DC_CHARGE-, the resistance R7 other end and control
Trigger pulse P1 connections.
Circuit operation principle is：
When being charged normal for battery module, start the path that charges normal in Fig. 1, pulse P1 is high level signal, three
Pole pipe Q2 is not turned on, and whole constant-current charge module for power supply part shut-off, constant-current charge module does not work；When detecting battery module
Charging current it is excessive when, closing charges normal path, gives pulse P1 low level signals, triode Q2 conductings, chip U1 and core
Piece U2 power supplies are connected, whole constant-current charge module for power supply part work, constant-current charge module normal work, if constant-current charge
The charging current of module is I, then has：
Deformation solution is carried out to above formula, constant current I expression formula is obtained：
Because chip U1 5 pin are detected in voltage pin, normal work for constant current, exported by self 1 pin of adjustment and 2 pin
The dutycycle of PWM ripples keeps the 5 pin voltage constant 0.155V constant.When relay S1 and resistance the R1 sampling circuit constituted or after
The current sampling circuit of electrical equipment S2 and sampling resistor R2 compositions, the charging current of sampling changes, then can cause the 5 of chip U1
Pin voltage changes, and now the pin of chip 1 and 2 pin can produce constant frequency 150KHz pwm pulse P2, and pulse P2 passes through driving
Trigger pulse P3, pulse P3 triggering metal-oxide-semiconductor Q1, regulation metal-oxide-semiconductor Q1 conducting and the ratio of turn-off time are generated after chip U2 drivings
Example, and then maintain constant charging current.
Current sampling circuit is that S1, R2 are combined and S2, R3 combination；By selecting closure different relay S1, S2 optional
Select different charging currents；As other embodiment, if necessary to multigroup different size of charging current, it can add a variety of
Combination.
The power module of the present embodiment is the combination of triode Q2 and its peripheral circuit, as other embodiment, can be with
By the way of power supply is connected with switch, when constant-current charge module works, closure switch make chip U1 switch on power, are in
Normal working condition.
Switching tube Q1 in the present embodiment is IGBT or metal-oxide-semiconductor, and triode Q2 is IGBT or metal-oxide-semiconductor.
Switch element S1, S2 in two parallel branches included by current sampling circuit in the present embodiment is relay
Device, switch element can also be used as other embodiment using contactor.
Circuit is controlled present invention also offers a kind of constant-current charging of battery, the charging circuit can be in charging battery module electricity
When flowing through big, constant-current charge is carried out to battery module, the charging overcurrent protection to battery module is realized, it is possible to be battery mould
Block carries out low current charge, protects battery, improves battery life, it is ensured that hair of the battery module to the discharge performance of equipment
Wave.
It has been described in detail in the above-described embodiments for the control circuit of constant-current charging of battery, herein not
Repeat again.
Specific embodiment is presented above, but the present invention is not limited to embodiment described above.The present invention
Basic ideas be above-mentioned basic scheme, for those of ordinary skill in the art, according to the teachings of the present invention, design each
Plant the model deformed, formula, parameter and creative work need not be spent.In the principle and the situation of spirit for not departing from the present invention
Under to embodiment carry out change, modification, replacement and modification still fall within protection scope of the present invention.
Claims (10)
1. a kind of constant-current charging of battery controls circuit, it is characterised in that including charge control module and for being arranged on charging master
Switching tube on loop, wherein, the current sample end of charge control module is connected with charging major loop, and for sampling, charging is led back
Charging current on road, the output end of charge control module and the control end of switching tube are connected, for the charging electricity according to sampling
The make-and-break time of flow control switch pipe makes the charging current on charging major loop reach setting value, and maintains the setting value.
2. constant-current charging of battery according to claim 1 controls circuit, it is characterised in that the charge control module includes
XL4001 chips and driver element, the current sample end of XL4001 chips is connected to be formed by sampling resistor with charging major loop adopts
Sample loop, the power take-off of XL4001 chips is connected by the control end of driver element and switching tube.
3. constant-current charging of battery according to claim 2 controls circuit, it is characterised in that the driver element is
ZXGD3005E6 chips.
4. constant-current charging of battery according to claim 1 controls circuit, it is characterised in that the switching tube be IGBT or
Metal-oxide-semiconductor.
5. constant-current charging of battery according to claim 2 controls circuit, it is characterised in that the sampling circuit is included at least
Two parallel branches, wherein, string is provided with corresponding switch element and sampling resistor on each branch road.
6. constant-current charging of battery according to claim 2 controls circuit, it is characterised in that described XL4001 chips and drive
Moving cell is powered using same power module.
7. constant-current charging of battery according to claim 2 controls circuit, it is characterised in that the current sample of XL4001 chips
End is connected by voltage regulation resistance with voltage stabilizing branch road, for providing stable voltage.
8. a kind of charger, it is characterised in that control circuit including constant-current charging of battery, the circuit include charge control module and
The switching tube on charger charging major loop is arranged on, wherein, current sample end and the charging major loop of charge control module connect
Connect, for the charging current sampled on charging major loop, the output end of charge control module and the control end of switching tube are connected, and are used
The charging current on charging major loop is set to reach setting value in the make-and-break time of the charging current controlling switch pipe according to sampling, and
Maintain the setting value.
9. charger according to claim 8, it is characterised in that the charge control module includes XL4001 chips and drive
Moving cell, the current sample end of XL4001 chips is connected to form sampling circuit by sampling resistor with charging major loop, XL4001
The power take-off of chip is connected by driver element with switching tube.
10. charger according to claim 9, it is characterised in that the driver element is ZXGD3005E6 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710226919.6A CN107069863A (en) | 2017-04-06 | 2017-04-06 | A kind of constant-current charging of battery control circuit and charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710226919.6A CN107069863A (en) | 2017-04-06 | 2017-04-06 | A kind of constant-current charging of battery control circuit and charger |
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| Publication Number | Publication Date |
|---|---|
| CN107069863A true CN107069863A (en) | 2017-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710226919.6A Pending CN107069863A (en) | 2017-04-06 | 2017-04-06 | A kind of constant-current charging of battery control circuit and charger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037802A (en) * | 2018-07-26 | 2018-12-18 | 浙江吉利控股集团有限公司 | A kind of battery system and electric car |
| CN109066876A (en) * | 2018-08-31 | 2018-12-21 | 上海艾为电子技术股份有限公司 | A kind of switched charge chip and electronic equipment |
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| CN101645609A (en) * | 2008-08-08 | 2010-02-10 | 凹凸电子（武汉）有限公司 | Battery system, charging/discharging circuit thereof and charging/discharging control method thereof |
| CN102214914A (en) * | 2010-07-30 | 2011-10-12 | 深圳市科列技术有限公司 | Charging and discharging protection circuit of lithium iron phosphate battery for electric automobile |
| CN105098858A (en) * | 2014-05-14 | 2015-11-25 | 张翠红 | Charger control system for realizing constant current and constant voltage by employing TOP22X integrated chip |
| CN206685927U (en) * | 2017-04-06 | 2017-11-28 | 河南森源电气股份有限公司 | Constant-current charging of battery control circuit and charger |
-
2017
- 2017-04-06 CN CN201710226919.6A patent/CN107069863A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645609A (en) * | 2008-08-08 | 2010-02-10 | 凹凸电子（武汉）有限公司 | Battery system, charging/discharging circuit thereof and charging/discharging control method thereof |
| CN102214914A (en) * | 2010-07-30 | 2011-10-12 | 深圳市科列技术有限公司 | Charging and discharging protection circuit of lithium iron phosphate battery for electric automobile |
| CN105098858A (en) * | 2014-05-14 | 2015-11-25 | 张翠红 | Charger control system for realizing constant current and constant voltage by employing TOP22X integrated chip |
| CN206685927U (en) * | 2017-04-06 | 2017-11-28 | 河南森源电气股份有限公司 | Constant-current charging of battery control circuit and charger |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037802A (en) * | 2018-07-26 | 2018-12-18 | 浙江吉利控股集团有限公司 | A kind of battery system and electric car |
| CN109037802B (en) * | 2018-07-26 | 2020-08-28 | 浙江吉利控股集团有限公司 | Battery system and electric automobile |
| CN109066876A (en) * | 2018-08-31 | 2018-12-21 | 上海艾为电子技术股份有限公司 | A kind of switched charge chip and electronic equipment |
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| PB01 | Publication | ||
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Application publication date: 20170818 |