CN209282336U - A kind of portable lithium battery BMS management system - Google Patents
A kind of portable lithium battery BMS management system Download PDFInfo
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- CN209282336U CN209282336U CN201821827932.3U CN201821827932U CN209282336U CN 209282336 U CN209282336 U CN 209282336U CN 201821827932 U CN201821827932 U CN 201821827932U CN 209282336 U CN209282336 U CN 209282336U
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- circuit
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- resistance
- lithium battery
- management system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a kind of portable lithium battery BMS management systems, including adapter, adapter output end is separately connected charger detection circuit, power supply switch circuit, DC-DC converter booster circuit, DC-DC converter booster circuit output end connects charge management circuit, charge management circuit output is singly separately connected battery protecting circuit, voltage stabilizing power supplying circuit, battery protecting circuit, voltage stabilizing power supplying circuit output end is all connected with MCU control circuit, battery protecting circuit is separately connected discharge loop, charge circuit, discharge loop, charge circuit input terminal is all connected with power supply switch circuit output end, MCU control circuit output end connects level and drives conversion circuit, level drives conversion circuit output end to connect PC machine.The utility model improve lithium battery actual capacity, keep equipment task time more permanent, while avoiding input terminal electric current excessive, damage protection board and charging MOSFET and caused by security risk.
Description
Technical field
The utility model relates to lithium battery backup power supply technical field more particularly to a kind of portable lithium battery BMS management
System.
Background technique
Currently, existing for traditional 3 series lithium batteries for 9~12V/7A power supply adaptor on the market and filling insatiable hunger, and fill
Not into electrical phenomena, the lithium battery that 12V power source charges 3 are gone here and there every section maximum charging voltage that is averaged only has 4V, and lithium electricity fills full single-unit voltage
Platform is 4.2V；It means that the electricity that can only be charged to capacity 80% to lithium battery, exists and fill insatiable hunger phenomenon forever；7A or bigger
Current adapter charging exists and fills not into electricity (excessive and protect with the presence of charging overcurrent protection function charging current), Huo Zhechong
Electric current is big and damages protection board charging MOSFET (without charging overcurrent protection function).
Utility model content
In view of the above drawbacks of the prior art, the technical problem to be solved by the utility model is to provide a kind of portable
Lithium battery BMS management system, so as to solve the deficiencies in the prior art.
To achieve the above object, the utility model provides a kind of portable lithium battery BMS management system, including adaptation
Device, the adapter output end are separately connected charger detection circuit, power supply switch circuit, DC-DC converter booster circuit, institute
DC-DC converter booster circuit output end connection charge management circuit is stated, the charge management circuit output is singly separately connected electricity
Circuit, voltage stabilizing power supplying circuit are protected in pond, and the battery protecting circuit, voltage stabilizing power supplying circuit output end are all connected with MCU control circuit,
The battery protecting circuit is separately connected discharge loop, charge circuit, and the discharge loop, charge circuit input terminal are all connected with electricity
Source switching circuit output end, the MCU control circuit output end connection level drive conversion circuit, the level driving conversion electricity
Road output end connects PC machine.
A kind of above-mentioned portable lithium battery BMS management system, the charger detection circuit includes resistance R50, resistance
R48, zener diode ZD3 and metal-oxide-semiconductor Q7, the resistance R50 mono- terminate adapter (1) output end C+, and the resistance R50 is another
End is grounded by resistance R48, and the both ends the resistance R48 are also respectively connected with the grid and source electrode of metal-oxide-semiconductor Q7, the metal-oxide-semiconductor Q7's
Grid and source electrode are also respectively connected with zener diode ZD3 cathode and anode, and the drain electrode of the OS pipe Q7 and source electrode are separately connected J2
Terminal both ends.
A kind of above-mentioned portable lithium battery BMS management system, the power supply switch circuit include metal-oxide-semiconductor Q3 and Q4, institute
Metal-oxide-semiconductor Q3 grid is stated by resistance R73 connection adapter output end C+, the metal-oxide-semiconductor Q3 grid also passes through resistance R74 and is grounded,
The metal-oxide-semiconductor Q3 drain electrode passes through resistance R75 connection metal-oxide-semiconductor Q4 grid, the source grounding of the metal-oxide-semiconductor Q3 and Q4, the MOS
Pipe Q3 drain electrode also switches the end S1, S2, S3 of chip AO4407 by resistance R75, resistance R77 connection, and the metal-oxide-semiconductor Q4 drain electrode is logical
The end G1 of resistance R76 connection switching chip AO4407 is crossed, the end D1, D2, D3, D4 connection load of the switching chip AO4407 is just
Pole P+, the load anode P+ connection diode D3 cathode, the diode D3 anode connect adapter output end C+.
A kind of above-mentioned portable lithium battery BMS management system, the DC-DC converter booster circuit be based on
The DC-DC converter booster circuit of TPS55340 chip.
A kind of above-mentioned portable lithium battery BMS management system, the charge management circuit are based on chip BQ24133's
Charge management circuit.
A kind of above-mentioned portable lithium battery BMS management system, the battery protecting circuit are based on chip BQ3060's
Battery protecting circuit.
A kind of above-mentioned portable lithium battery BMS management system, the discharge loop are sequentially connected battery anode B
+, electric discharge MOS (M3, M4), charging MOS (M5, M6), switching chip AO4407, load anode P+, load cathode P-, examine leakage resistance
RN1~2, battery electrode B-, wherein battery anode B+, battery electrode B- are separately connected 4 feet and 7 of chip BQ3060
Foot.
A kind of above-mentioned portable lithium battery BMS management system, the charge circuit include sequentially connected charger just
Pole C+, DC-DC converter booster circuit output end V+, charge management circuit output end CH+, charging MOS (M5, M6), electric discharge MOS
(M3, M4), battery anode B+, battery electrode B-, inspection leakage resistance (RN1~2), the end protection board P-, charger cathode.
A kind of above-mentioned portable lithium battery BMS management system, the voltage stabilizing power supplying circuit export 3.3V.
A kind of above-mentioned portable lithium battery BMS management system, the MCU control circuit are single chip computer AT MEGA48.
The beneficial effects of the utility model are:
The utility model band RS232 communication function, can change Protection parameters by host computer；With each of charging and discharging
Overcurrent, short-circuit protection, the Charge Management function of kind defencive function and hardware；Adapter can be achieved and lithium battery intelligent switches.
14.5V boosting is carried out using TPS55340 to input terminal 9~12V supply voltage, reaches the string full charging flattening bench of lithium battery 3
12.6V or more meets lithium battery and fills full condition, charging constant current 1.7A control is carried out to input terminal charging current, using BQ24133
It realizes, effectively avoids the input terminal electric current excessive, and trigger charging overcurrent protection or burn out charge control MOSFET phenomenon,
Lithium battery actual capacity is improved, keeps equipment task time more permanent, while avoiding input terminal electric current excessive, damage protection board and is filled
Electric MOSFET and caused by security risk.
Make furtherly below with reference to technical effect of the attached drawing to the design of the utility model, specific structure and generation
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Detailed description of the invention
Fig. 1 is the overall structure block diagram of the utility model.
Fig. 2 is the DC-DC converter booster circuit of the utility model.
Fig. 3 is the TPS55340 chip equivalent schematic diagram of Fig. 2.
Fig. 4 is the equivalent schematic diagram of the switching tube M conducting of Fig. 3.
Fig. 5 is the equivalent schematic diagram of the switching tube M cut-off of Fig. 3.
Fig. 6 is the voltage feedback circuit schematic diagram in TPS55340.
Fig. 7 is the charger detection circuit schematic diagram of the utility model.
Fig. 8 is the charge management circuit schematic diagram of the utility model.
Fig. 9 is the power supply switch circuit schematic diagram of the utility model.
Figure 10 is the battery protecting circuit schematic diagram of the utility model.
Figure 11 is the Transistor-Transistor Logic level driving circuit and RS232 driving switching levels circuit diagram of the utility model.
Figure 12 is the MCU control circuit and voltage stabilizing power supplying circuit schematic diagram of the utility model.
Specific embodiment
As shown in Figure 1, a kind of portable lithium battery BMS management system, including adapter 1,1 output end of adapter point
Not Lian Jie charger detection circuit 2, power supply switch circuit 3, DC-DC converter booster circuit 4, DC-DC converter boosting
4 output end of circuit connects charge management circuit 5, and the charge management circuit 5 output is singly separately connected battery protecting circuit 6, steady
Power supply circuit 9 is pressed, the battery protecting circuit 6,9 output end of voltage stabilizing power supplying circuit are all connected with MCU control circuit 10, the battery
Protection circuit 6 is separately connected discharge loop 7, charge circuit 8, and the discharge loop 7,8 input terminal of charge circuit are all connected with power supply
3 output end of switching circuit, 10 output end of the MCU control circuit connection level drive conversion circuit 11, and the level driving turns
Change 11 output end of circuit connection PC machine 12.
Fig. 2 is DC-DC converter booster circuit: TPS55340 is the asynchronous switching regulator of a monolithic, this voltage-stablizer
With integrated 5A, 40V power switch.Working principle is as follows: as shown in figure 3, by exporting square-wave oscillator inside ICU10
500K, U10 built-in switch pipe M, energy-storage travelling wave tube inductor L, one-way conduction diode D, energy-storage travelling wave tube capacitor C.
During the charging process, it closes the switch (M conducting), equivalent circuit at switching tube M as shown in figure 4, be connected, with conducting wire generation
It replaces.At this moment, input voltage flows through inductance.Diode prevents capacitor from discharging over the ground.Since input is direct current, so on inductance
Electric current is linearly increasing with certain ratio, this ratio, as the related electric current of inductance increases, is stored with inductance size in inductance
Some energy.
Discharge process: as shown in figure 5, the equivalent circuit when switching tube M cut-off.When switch disconnects (switching tube cut-off)
When, due to the electric current retention performance of inductance, the electric current for flowing through inductance will not immediately become 0, but when slowly being finished by charging
Value become 0.And original circuit has disconnected, then inductance can only be added by diode D circuit discharging, i.e. VIN input voltage
Voltage across the inductor starts to capacitor charging, and capacitor both end voltage is twice of the end VIN voltage at this time, reaches boosting purpose.
In addition, voltage feedback circuit in TPS55340 as shown in fig. 6, it by test side output voltage resitstance voltage divider
Ra, Rb, reference voltage Vref, error amplifier, pulse width modulation circuit composition.If pressure stabilizing process is in voltage regulator circuit
Load current Iout ↑ → Vout ↓ → U point voltage ↓ → output voltage error amplifier ↑ → pulse output width ↑ → Vout ↑.It is defeated
Voltage is with electric resistance partial pressure ratio out are as follows: Vout=(1+Ra/Rb) * Vref.
As shown in fig. 7, the charger detection circuit 2 includes resistance R50, resistance R48, zener diode ZD3 and metal-oxide-semiconductor
Q7, the resistance R50 mono- terminate 1 output end C+ of adapter, and the resistance R50 other end is grounded by resistance R48, the resistance
The both ends R48 are also respectively connected with the grid and source electrode of metal-oxide-semiconductor Q7, and the grid and source electrode of the metal-oxide-semiconductor Q7 is also respectively connected with pressure stabilizing two
Pole pipe ZD3 cathode and anode, the drain electrode of the OS pipe Q7 and source electrode are separately connected J2 terminal both ends.After charger insertion
The conducting of Q7Vgs high level, the pole Q7D are lower level, and it is enabled effective to be external in the port J2.
As shown in figure 8, the charge management circuit 5 is the charge management circuit based on chip BQ24133.Chip
The independent lithium ion and lighium polymer synchronous switch mode battery charge controller that BQ24133 is a highly integrated, there are two collection for tool
Accepted way of doing sth N channel power MOSFET and power path selector gate pole driver.
As shown in figure 9, the power supply switch circuit 3 includes metal-oxide-semiconductor Q3 and Q4, the metal-oxide-semiconductor Q3 grid passes through resistance R73
1 output end C+ of adapter is connected, the metal-oxide-semiconductor Q3 grid also passes through resistance R74 and is grounded, and the metal-oxide-semiconductor Q3 drain electrode passes through resistance
R75 connection metal-oxide-semiconductor Q4 grid, the source grounding of the metal-oxide-semiconductor Q3 and Q4, metal-oxide-semiconductor Q3 drain electrode also by resistance R75,
Resistance R77 connection switches the end S1, S2, S3 of chip AO4407, and the metal-oxide-semiconductor Q4 drain electrode switches chip by resistance R76 connection
The end G1 of AO4407, the end D1, D2, D3, D4 connection load anode P+ of the switching chip AO4407, the load anode P+ company
Diode D3 cathode is connect, the diode D3 anode connects 1 output end C+ of adapter.When adapter insertion, Q3 conducting, Q4 is cut
Only, M1, M2 cut-off, adapter powering load and battery charging at this time, when adapter pulls out, Q3 cut-off, Q4 conducting, M1,
M2 conducting, battery powering load.
As shown in Figure 10, the battery protecting circuit 6 is the battery protecting circuit based on chip BQ3060, by chip
BQ3060 completes overcharge, over, charge and discharge excess temperature, charge and discharge overcurrent, short-circuit function, SOC electric quantity metering and SMBUS
Communication.
The discharge loop 7 be sequentially connected battery anode B+, electric discharge MOS (M3, M4), charging MOS (M5, M6),
Switch chip AO4407, load anode P+, load cathode P-, examine leakage resistance RN1~2, battery electrode B-, wherein battery pack is being just
Pole B+, battery electrode B- are separately connected 4 feet and 7 feet of chip BQ3060.Chip when overdischarge and excess temperature, electric discharge overcurrent protection
2 feet of BQ3060 export high level, and the VGS no-voltage of electric discharge MOS (M3, M4) makes MOS shutdown of discharging, cuts off discharge loop.
The charge circuit 8 include sequentially connected charger anode C+, 4 output end V+ of DC-DC converter booster circuit,
5 output end CH+ of charge management circuit, charging MOS (M5, M6), electric discharge MOS (M3, M4), battery anode B+, battery electrode
B-, inspection leakage resistance (RN1~2), the end protection board P-, charger cathode.Chip when overcharge and excess temperature, charging overcurrent protection
The 23 foot high level outputs of BQ3060, the VGS no-voltage of charging MOS (M5, M6) make MOS shutdown of charging, cut off charge circuit.
Figure 11 is Transistor-Transistor Logic level driving circuit and RS232 drives switching levels circuit, TXD signal and the RXD letter of single-chip microcontroller U6
The 11PIN and 12PIN for number being connected to MAX3232 chip respectively after U3, U8 drive amplification respectively carry out RS232 signal level and turn
After changing, it can be communicated with PC machine.
Figure 12 is MCU control circuit and voltage stabilizing power supplying circuit, and voltage stabilizing power supplying circuit exports 3.3V.Mainly by single-chip microcontroller U6
It is responsible for reading the voltage detected, electric current and the SOC of chip BQ3060 centered on (the present embodiment uses single chip computer AT MEGA48)
Etc. data, and exchanged with outer PC Direct Communication.
To sum up, the utility model band RS232 communication function, can change Protection parameters by host computer；With charging and put
The various defencive functions of electricity and overcurrent, short-circuit protection, the Charge Management function of hardware；Adapter and lithium battery intelligence can be achieved
It can switching.14.5V boosting is carried out using TPS55340 to input terminal 9~12V supply voltage, reaches the string full charging pressure of lithium battery 3
Platform 12.6V or more meets lithium battery and fills full condition, carries out charging constant current 1.7A control to input terminal charging current, uses
BQ24133 is realized, effectively avoids the input terminal electric current excessive, and is triggered charging overcurrent protection or burnt out charge control
MOSFET phenomenon improves lithium battery actual capacity, keeps equipment task time more permanent, while avoiding input terminal electric current excessive, damages
Bad protection board and charging MOSFET and caused by security risk.
The preferred embodiments of the present invention have been described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality according to the design of the utility model on the basis of existing technology in domain
Available technical solution is tested, it all should be within the scope of protection determined by the claims.
Claims (10)
1. a kind of portable lithium battery BMS management system, including adapter (1), it is characterised in that: adapter (1) output
End is separately connected charger detection circuit (2), power supply switch circuit (3), DC-DC converter booster circuit (4), the DC-DC
Converter booster circuit (4) output end connects charge management circuit (5), and charge management circuit (5) output is singly separately connected
Battery protecting circuit (6), voltage stabilizing power supplying circuit (9), the battery protecting circuit (6), voltage stabilizing power supplying circuit (9) output end connect
It connects MCU control circuit (10), the battery protecting circuit (6) is separately connected discharge loop (7), charge circuit (8), the electric discharge
Circuit (7), charge circuit (8) input terminal are all connected with power supply switch circuit (3) output end, MCU control circuit (10) output
End connection level driving conversion circuit (11), level driving conversion circuit (11) output end connection PC machine (12).
2. a kind of portable lithium battery BMS management system as described in claim 1, it is characterised in that: the charger detection
Circuit (2) includes that resistance R50, resistance R48, zener diode ZD3 and metal-oxide-semiconductor Q7, the resistance R50 mono- terminate adapter (1)
Output end C+, the resistance R50 other end are grounded by resistance R48, and the both ends the resistance R48 are also respectively connected with metal-oxide-semiconductor Q7's
Grid and source electrode, the grid and source electrode of the metal-oxide-semiconductor Q7 are also respectively connected with zener diode ZD3 cathode and anode, the OS pipe
The drain electrode of Q7 and source electrode are separately connected J2 terminal both ends.
3. a kind of portable lithium battery BMS management system as described in claim 1, it is characterised in that: the power supply switching electricity
Road (3) includes metal-oxide-semiconductor Q3 and Q4, and the metal-oxide-semiconductor Q3 grid passes through resistance R73 connection adapter (1) output end C+, the MOS
Pipe Q3 grid also passes through resistance R74 and is grounded, and the metal-oxide-semiconductor Q3 drain electrode passes through resistance R75 connection metal-oxide-semiconductor Q4 grid, the metal-oxide-semiconductor
The source grounding of Q3 and Q4, the metal-oxide-semiconductor Q3 drain electrode also switch chip AO4407's by resistance R75, resistance R77 connection
The end S1, S2, S3, the metal-oxide-semiconductor Q4 drain electrode switch the end G1 of chip AO4407, the switching chip by resistance R76 connection
The end D1, D2, D3, D4 connection load anode P+ of AO4407, the load anode P+ connection diode D3 cathode, the diode
D3 anode connects adapter (1) output end C+.
4. a kind of portable lithium battery BMS management system as described in claim 1, it is characterised in that: the DC-DC converter
Booster circuit (4) is the DC-DC converter booster circuit based on TPS55340 chip.
5. a kind of portable lithium battery BMS management system as described in claim 1, it is characterised in that: the Charge Management electricity
Road (5) is the charge management circuit based on chip BQ24133.
6. a kind of portable lithium battery BMS management system as described in claim 1, it is characterised in that: the battery protection electricity
Road (6) is the battery protecting circuit based on chip BQ3060.
7. a kind of portable lithium battery BMS management system as described in claim 1, it is characterised in that: the discharge loop (7)
Just for sequentially connected battery anode B+, electric discharge MOS (M3, M4), charging MOS (M5, M6), switching chip AO4407, load
Pole P+, load cathode P-, inspection leakage resistance RN1~2, battery electrode B-, wherein battery anode B+, battery electrode B- distinguish
Connect 4 feet and 7 feet of chip BQ3060.
8. a kind of portable lithium battery BMS management system as described in claim 1, it is characterised in that: the charge circuit (8)
Including sequentially connected charger anode C+, DC-DC converter booster circuit (4) output end V+, charge management circuit (5) output
Hold CH+, charging MOS (M5, M6), electric discharge MOS (M3, M4), battery anode B+, battery electrode B-, inspection leakage resistance (RN1~
2), the end protection board P-, charger cathode.
9. a kind of portable lithium battery BMS management system as described in claim 1, it is characterised in that: the pressure stabilizing power supply electricity
Road (9) exports 3.3V.
10. a kind of portable lithium battery BMS management system as described in claim 1, it is characterised in that: the MCU control electricity
Road (10) is single chip computer AT MEGA48.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821827932.3U CN209282336U (en) | 2018-11-07 | 2018-11-07 | A kind of portable lithium battery BMS management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821827932.3U CN209282336U (en) | 2018-11-07 | 2018-11-07 | A kind of portable lithium battery BMS management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209282336U true CN209282336U (en) | 2019-08-20 |
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ID=67600447
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821827932.3U Active CN209282336U (en) | 2018-11-07 | 2018-11-07 | A kind of portable lithium battery BMS management system |
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| CN (1) | CN209282336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162178A (en) * | 2021-04-27 | 2021-07-23 | 深圳市阳邦兴业智能科技有限公司 | Detection protection and control system with charging function |
-
2018
- 2018-11-07 CN CN201821827932.3U patent/CN209282336U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162178A (en) * | 2021-04-27 | 2021-07-23 | 深圳市阳邦兴业智能科技有限公司 | Detection protection and control system with charging function |
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