CN106849242B - A kind of charge control module of movable type charger baby battery management system - Google Patents
A kind of charge control module of movable type charger baby battery management system Download PDFInfo
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- CN106849242B CN106849242B CN201710105959.5A CN201710105959A CN106849242B CN 106849242 B CN106849242 B CN 106849242B CN 201710105959 A CN201710105959 A CN 201710105959A CN 106849242 B CN106849242 B CN 106849242B
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 230000001629 suppression Effects 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 19
- 230000001681 protective effect Effects 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 7
- 230000006837 decompression Effects 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 6
- 238000011217 control strategy Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000003745 diagnosis Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000002459 sustained effect Effects 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H02J7/0026—
-
- 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
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
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- H02J7/027—
-
- 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
- H02J7/00302—Overcharge protection
-
- 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
- H02J7/00304—Overcurrent protection
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of charge control modules of mobile charger baby battery management system; power input protection rectification circuit comprising being sequentially connected, power input protection rectification circuit described in DC voltage conversion circuit and current balance control circuit, for realizing the overcurrent protection of charge control module, lightning protection, overvoltage protection, Surge suppression and output short circuit protection；The DC voltage conversion circuit is battery-powered for realizing the voltage of input is converted to DC power supply；The current balance control circuit for the individual difference of each battery in automatic identification battery pack, and adaptively adjusts charging current.The charge control module of mobile charger baby battery management system of the invention, the Balance route to serial power battery pack charging process may be implemented, the battery unit in battery pack is set fully to play its energy storage potential, prolong the service life, significantly improves the energy storage effect and energy conversion efficiency of mobile charger baby.
Description
Technical field
The present invention relates to a kind of charge control modules of mobile charger baby battery management system.
Background technique
It is mainly fixed for the existing infrastructure that electric car is established, it cannot flexibly move.In electric car
In actual use, due to human negligence or equipment fault, it sometimes appear that in the electric car of traveling on the way because of electricity
It can exhaust without the case where driving to electric charging point can be continued.For above-mentioned fortuitous event, the charging for the formula that can move freely is developed
Unit is that the electric car supplement energy is necessary, therefore proposes the mobile charging treasured for aiming at electric car power supply
Concept.
Mobile charger baby is a kind of emergency power supply unit of electric car that can move freely, and battery energy storage unit is to move
The important component of dynamic formula charger baby.It is single in battery pack due to the influence of the aspect of manufacture craft, operating temperature, aging etc.
Body battery is inconsistent in terms of capacity, internal resistance, end.This inconsistency significantly affect power battery pack service life,
Efficiency and whole volume.
Summary of the invention
The purpose of the present invention is overcoming the deficiencies of existing technologies, a kind of filling for mobile charger baby battery management system is provided
The Balance route to serial power battery pack charging process may be implemented in electric control module, fills the battery unit in battery pack
Divide ground to play its energy storage potential, prolong the service life, significantly improves the energy storage effect and energy conversion effect of mobile charger baby
Rate.
Realizing the technical solution of above-mentioned purpose is: a kind of charge control module of movable type charger baby battery management system,
Include power input protection rectification circuit, DC voltage conversion circuit and the current balance control circuit being sequentially connected, in which:
The power input protects rectification circuit, for realizing the overcurrent protection of charge control module, lightning protection, over-voltage
Protection, Surge suppression and output short circuit protection；
The DC voltage conversion circuit is battery-powered for realizing the voltage of input is converted to DC power supply；
The current balance control circuit, for the individual difference of each battery in automatic identification battery pack, and it is adaptive
Adjust charging current.
The charge control module of above-mentioned a kind of mobile charger baby battery management system, wherein the power input is protected
Shield rectification circuit include fuse, protective resistance, the first~the 4th gas-discharge tube, the first~the 4th varistor, choke coil,
First filter capacitor, the second filter capacitor and the first~the 4th rectifier diode, in which:
The fuse and protective resistance are connected on firewire；
One end of the first gas discharge tube is connected with the abutment end of the fuse and protective resistance, other end connection
To zero curve；
One end of the second gas discharge tube is connected with the abutment end of the fuse and protective resistance, the other end and institute
State third gas discharge tube be connected be followed by zero curve；
One end of 4th gas-discharge tube and the abutment end of the second gas discharge tube and third gas discharge tube
It is connected, other end ground connection；
One end of first varistor is connected with the protective resistance, and the other end is connected with the third varistor
It is followed by zero curve；
One end of second varistor is connected with the abutment end of first varistor and third varistor, separately
One end ground connection；The first end of the choke coil is connected with the abutment end of the protective resistance and the first varistor, the chokes
The second end of circle is grounded, the third end and the 4th end of the choke coil both ends phase with the 4th varistor correspondingly
Even；
First filter capacitor is in parallel with the 4th varistor；
First rectifier diode and the series connection of third rectifier diode, second rectifier diode and the 4th rectification two
Pole pipe series connection；
The abutment end and first rectifier diode of first filter capacitor and the 4th varistor
Anode is connected, another abutment end is connected with the abutment end of second rectifier diode and the 4th rectifier diode；
The cathode of first rectifier diode and connected rear and second filtered electrical of the cathode of the second rectifier diode
One end of appearance is connected, the other end of second filter capacitor, the anode of third rectifier diode and the 4th rectifier diode
Anode is connected to GND after being connected.
A kind of charge control module of above-mentioned mobile charger baby battery management system, wherein the direct current buckling
Change circuit include switch, transistor, inductance coil and resonant capacitance, it is described switch and coupled in parallel setting, it is described switch with
One abutment end of transistor is connected to external power supply input terminal, another abutment end passes through the inductance coil and the resonance
One end of capacitor is connected；The other end of the resonant capacitance is connected to GND.
A kind of charge control module of above-mentioned mobile charger baby battery management system, wherein the direct current buckling
Circuit is changed using decompression transducer, with constant switching frequency operation, DC voltage is exported and levels of current can closed loop adjusting.
A kind of charge control module of above-mentioned mobile charger baby battery management system, wherein the current balance control
Circuit processed includes freewheeling diode and several current balance control units, several described current balance control units and battery
Several batteries in group correspond；Several described batteries are sequentially connected in series the battery pack；The freewheeling diode
Cathode be connected with the anode of battery pack, the freewheeling diode anode be connected with the cathode of the battery pack；It is each described
Current balance control unit includes power switch, inductance and diode, one end, power switch, inductance and the electricity of the battery
The other end in pond is sequentially connected, and the cathode of the diode is connected with the abutment end of the power switch and inductance, described several
The diode of a current balance control unit is sequentially connected in series, and the diode of the last one current balance control unit is just
Pole is connected with the abutment end of corresponding battery and inductance.
The charge control module of mobile charger baby battery management system of the invention, may be implemented to serial power battery
The Balance route of group charging process, makes the battery unit in battery pack fully play its energy storage potential, prolongs the service life, and shows
Write the energy storage effect and energy conversion efficiency for improving mobile charger baby.
Detailed description of the invention
Fig. 1 is the structural block diagram of the charge control module of mobile charger baby battery management system of the invention；
Fig. 2 is the circuit diagram that power input protects rectification circuit；
Fig. 3 is the circuit diagram of DC voltage conversion circuit；
Fig. 4 is the circuit diagram of current balance control circuit；
Fig. 5 is the battery charge control strategy of the charge control module of mobile charger baby battery management system of the invention
Block diagram.
Specific embodiment
It is right with reference to the accompanying drawing in order to make those skilled in the art be better understood when technical solution of the present invention
Its specific embodiment is described in detail:
Charger baby battery pack BAT is that have in series by several batteries, is the critical elements of energy storage.In order to by energy
Storage in the battery, needs to be converted to alternating current the direct current of appropriate voltage level, then by control circuit according to battery
Charge characteristic gradually converts energy into the chemical energy of inside battery.Since battery pack has a fairly large number of battery unit to constitute,
Parameter and in terms of be respectively present certain difference, during electric energy is gradually converted to chemical energy, for battery
Its charging and discharging process of unit difference dot characteristics degree carries out necessary control, to the efficiency for playing battery, shortens the charging time, improves
Charge efficiency has very important effect.
Referring to Fig. 1, highly preferred embodiment of the present invention, a kind of charge control mould of movable type charger baby battery management system
Block 1 includes power input protection rectification circuit 11, DC voltage conversion circuit 12 and the current balance control circuit being sequentially connected
13, power input protects rectification circuit 11, for realizing the overcurrent protection of charge control module, lightning protection, overvoltage protection, wave
Gush inhibition and output short circuit protection；DC voltage conversion circuit 12 is for realizing the voltage of input is converted to DC power supply
Battery pack BAT power supply；Current balance control circuit 13, for the individual difference of each battery in automatic identification battery pack, and from
Adapt to adjustment charging current.
State monitoring module 2, for monitoring battery pack in charging stage, discharge regime, memory phase and haulage stage
State parameter, state parameter include charging current, discharge current, voltage, temperature, pressure and leakage current parameter.
Fault diagnosis module 3, with the charging current of the battery pack continuously monitored, discharge current, voltage, temperature, pressure and
Based on leakage current parameter, comprehensive assessment is carried out to battery status, the latent defect of internal battery pack is found in advance, to possible
The risk of appearance and potential power supply capacity are evaluated.Fault diagnosis module 3, using the diagnostic method based on empirical rule,
Diagnostic rule is rule of thumb write in advance and is stored in the controller, and the operation phase retrieves and match diagnosis rule according to measurement parameter
Then, and accordingly diagnosis is exported.
Referring to Fig. 2, power input protection rectification circuit includes that fuse F, protective resistance R, the first~the 4th gas are put
Fulgurite Nx1, Nx2, Nx3, Nx4, the first~the 4th varistor ZNR1, ZNR2, ZNR3, ZNR4, choke coil T, the first filtered electrical
Hold C11, the second filter capacitor C12 and the first~the 4th rectifier diode D11, D12, D13, D14.Fuse F and protection electricity
Resistance R is connected on firewire L；One end of first gas discharge tube Nx1 is connected with the abutment end of fuse F and protective resistance R, another
End is connected to zero curve N；One end of second gas discharge tube Nx2 is connected with the abutment end of fuse F and protective resistance R, the other end
It is connected with third gas discharge tube Nx3 and is followed by zero curve N；One end of 4th gas-discharge tube Nx4 and second gas discharge tube Nx2
It is connected with the abutment end of third gas discharge tube Nx3, the other end is grounded PE；One end of first varistor ZNR1 and protective resistance
R is connected, and the other end is connected with third varistor ZNR3 is followed by zero curve N；One end of second varistor ZNR2 and described the
One varistor ZNR1 is connected with the abutment end of third varistor ZNR3, and the other end is grounded PE；The first end of choke coil T and guarantor
The abutment end for protecting resistance R and the first varistor ZNR1 is connected, and the second end of choke coil T is grounded PE, the third end of choke coil T and
4th end is connected with the both ends of the 4th varistor ZNR4 correspondingly；First filter capacitor C11 and the 4th pressure-sensitive electricity
It is in parallel to hinder ZNR4；First rectifier diode D11 and third rectifier diode D13 series connection, the second rectifier diode D12 and the 4th are whole
Flow diode D14 series connection；An abutment end and the first rectifier diode of first filter capacitor C11 and the 4th varistor ZNR4
The anode of D11 is connected, another abutment end is connected with the abutment end of the second rectifier diode D12 and the 4th rectifier diode D14；
After the cathode of the cathode of first rectifier diode D11 and the second rectifier diode D12 are connected and one end of the second filter capacitor C12
It is connected, the other end, the anode of third rectifier diode D13 and the anode of the 4th rectifier diode D14 of the second filter capacitor C12
GND is connected to after being connected.
Power input is protected in rectification circuit, and F is fuse, realizes overcurrent protection；Nx1~Nx4 is gas discharge
Pipe realizes lightning protection；ZNR1~ZNR3 is varistor, realizes overvoltage protection；T2 is choke coil, realizes Surge suppression；
ZNR4 is varistor, and C11, C12 are filter capacitor, is mainly used for instantaneous sharp pulse of decaying.
Referring to Fig. 3, DC voltage conversion circuit includes switch S, transistor VT, inductance coil L11 and resonant capacitance
C21, switch S and transistor VT are arranged in parallel, and an abutment end of switch S and transistor VT are connected to external power supply input terminal
DCIN, another abutment end are connected by inductance coil L11 with one end of resonant capacitance C21；The other end of resonant capacitance C21 connects
It is connected to GND.DC voltage conversion circuit uses decompression transducer, with constant switching frequency operation, export DC voltage and
Levels of current can closed loop adjusting.The voltage of input is converted to required direct current by DC voltage conversion circuit, main realize
Source is external power supply.DC voltage conversion circuit is designed as buck buck converter, and switch S1 is triggered under program in figure
On-off line operation, to obtain steady dc voltage in output end, passes through regulating switch usually with constant switching frequency operation
The charging voltage or electric current that the duty ratio of S1 can be needed.On the one hand voltage and current that program measures output end is controlled, together
When compared with setting value, it can be achieved that closed loop adjusts output DC voltage and levels of current.
Referring to Fig. 4, current balance control circuit includes sustained diode n+1 and several current balance control units,
Several batteries BT1~BTn in several current balance control units and battery pack is corresponded；Several batteries BT1~
BTn is sequentially connected in series battery pack；The cathode of sustained diode n+1 is connected with the anode of battery pack, sustained diode n+1's
Anode is connected with the cathode of battery pack；Each current balance control unit includes power switch, inductance and diode, battery
One end, power switch, inductance and battery the other end be sequentially connected, the cathode of diode and the abutment end of power switch and inductance
It is connected.Current balance control circuit main components have: inductance L1~Ln, capacitor C1~Cn, power switch tube Q1~Qn and two
Diode D1~Dn of pole pipe D1~Dn+1, several current balance control units are sequentially connected in series, and the last one current balance
The anode of the diode Dn of control unit is connected with the abutment end of corresponding battery BTn and inductance Ln.
Current balance control circuit may be implemented to concatenated battery BT1~BTn equalizaing charge in groups, when with some battery
When the corresponding power switch tube of unit is connected, battery unit is bypassed, and charging current is not passed through corresponding battery unit, otherwise will
It charges to battery unit.The diode being arranged in system plays the role of afterflow, can be relatively high anti-to avoid being formed in the loop
Battery and charging device are damaged to voltage influence.In actual use, can with pwm control signal to the on-off of power switch tube into
Row control is only existed very between the final SOC value for maintaining battery by the speed of each battery unit charging of duty cycle adjustment
Small difference.
Referring to Fig. 5, battery charge control strategy mainly using voltage difference, voltage difference change rate and single battery temperature as
3 main input parameters.Control strategy is using the average voltage Va of series-connected cell group unit as reference input, with actual measurement
For single battery end voltage V as main control parameters, PI controller average voltage Va in holding voltage V and organize is defeated as input
Control amount (duty ratio of pwm signal) adjusts charging process out.Control strategy is first according to the voltage differences e of monitoringv, voltage difference
Change rate is blurred in its domain, then determines P, I control ginseng of controller by the method for fuzzy operation according to rule
Number.Simultaneously individually for P control parameter, linear scale amendment is carried out on the basis of fuzzy reasoning conclusion.
Charge control module uses the strategy of Fuzzy PI Controller, fuzzy self-adaption to the charge control strategy of single battery
Control strategy is mainly using voltage difference, voltage difference change rate and single battery temperature as three main input parameters.Current balance
The fuzzy PI hybrid control strategy that control circuit uses, fuzzy PI hybrid control strategy is using the average voltage of series-connected cell group unit as reference
Input, using the single battery end voltage of actual measurement as main control parameters, PI controller is to hold average electricity in voltage and group
Pressure adjusts charging process as input, output control amount (duty ratio of pwm signal).Control strategy is become with voltage difference, voltage difference
Based on three major parameters of rate and single battery temperature, the coefficient of PI controller is adjusted.Fuzzy PI hybrid control strategy
First according to the voltage differences of monitoring, voltage difference change rate, it is blurred in its domain, fuzzy operation is then passed through according to rule
Method determine P, I parameter of controller.The P control parameter of influence in view of temperature to controller parameter, reality output exists
Appropriate amendment is done on the output parameter of fuzzy control, specific empirical equation is as follows:
P=Pfuzzy(1+k*Δt) (1)
In formula (1), P is the P control parameter of reality output；PfuzzyThe control parameter obtained for fuzzy reasoning；Δ t is monomer
Battery and the difference for organizing interior battery unit mean temperature；K is temperature correction coefficient, is changed with battery variety.
The reality output calculation formula of PI controller is as follows:
U=P* α * Δ V+I* β * ∫ Δ V (2)
In formula (2), U is the PWM duty cycle [0%, 100%] of output；Δ V is cell voltage deviation；α, β are PI control ginseng
Number conversion coefficient, α, β are constant, are adjusted in the controller debugging stage according to the technological parameter of battery pack configuration and battery.
In conclusion the charge control module of mobile charger baby battery management system of the invention, may be implemented to string
The Balance route for joining power battery pack charging process, makes the battery unit in battery pack fully play its energy storage potential, extends
Service life significantly improves the energy storage effect and energy conversion efficiency of mobile charger baby.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as the change in spirit of the invention, to embodiment described above
Change, modification will all be fallen within the scope of claims of the present invention.
Claims (4)
1. a kind of charge control module of movable type charger baby battery management system, which is characterized in that include the electricity being sequentially connected
Source input protection rectification circuit, DC voltage conversion circuit and current balance control circuit, in which:
The power input protects rectification circuit, protects for realizing the overcurrent protection of charge control module, lightning protection, over-voltage
Shield, Surge suppression and output short circuit protection；
The DC voltage conversion circuit is battery-powered for realizing the voltage of input is converted to DC power supply；
The current balance control circuit for the individual difference of each battery in automatic identification battery pack, and adaptively adjusts
Charging current,
The power input protection rectification circuit includes fuse, protective resistance, the first~the four gas-discharge tube, the first~the
Four varistors, choke coil, the first filter capacitor, the second filter capacitor and the first~the 4th rectifier diode, in which:
The fuse and protective resistance are connected on firewire；
One end of the first gas discharge tube is connected with the abutment end of the fuse and protective resistance, and the other end is connected to zero
Line；
One end of the second gas discharge tube is connected with the abutment end of the fuse and protective resistance, the other end and described the
Three gas-discharge tubes, which are connected, is followed by zero curve；
One end of 4th gas-discharge tube is connected with the abutment end of the second gas discharge tube and third gas discharge tube,
Other end ground connection；
One end of first varistor is connected with the protective resistance, and the other end is connected with the third varistor to be followed by
To zero curve；
One end of second varistor is connected with the abutment end of first varistor and third varistor, the other end
Ground connection；The first end of the choke coil is connected with the abutment end of the protective resistance and the first varistor, the choke coil
Second end ground connection, the third end and the 4th end of the choke coil are connected with the both ends of the 4th varistor correspondingly；
First filter capacitor is in parallel with the 4th varistor；
First rectifier diode and the series connection of third rectifier diode, second rectifier diode and the 4th rectifier diode
Series connection；
The anode of the abutment end and first rectifier diode of first filter capacitor and the 4th varistor
It is connected, another abutment end is connected with the abutment end of second rectifier diode and the 4th rectifier diode；
The cathode of first rectifier diode and the cathode of the second rectifier diode are connected rear and second filter capacitor
One end is connected, the anode of the other end of second filter capacitor, the anode of third rectifier diode and the 4th rectifier diode
GND is connected to after being connected.
2. a kind of charge control module of mobile charger baby battery management system according to claim 1, feature exist
In the DC voltage conversion circuit includes switch, transistor, inductance coil and resonant capacitance, and the switch and transistor are simultaneously
One abutment end of connection setting, the switch and transistor is connected to external power supply input terminal, another abutment end passes through described
Inductance coil is connected with one end of the resonant capacitance；The other end of the resonant capacitance is connected to GND.
3. a kind of charge control module of mobile charger baby battery management system according to claim 1, feature exist
In the DC voltage conversion circuit uses decompression transducer, with constant switching frequency operation, exports DC voltage and electricity
Flow horizontal can closed loop adjusting.
4. a kind of charge control module of mobile charger baby battery management system according to claim 1, feature exist
In the current balance control circuit includes freewheeling diode and several current balance control units, several described electric currents
Several batteries in Balance route unit and battery pack correspond；Several described batteries are sequentially connected in series the battery
Group；The cathode of the freewheeling diode is connected with the anode of battery pack, anode and the battery pack of the freewheeling diode
Cathode is connected；Each current balance control unit includes power switch, inductance and diode, one end of the battery,
The other end of power switch, inductance and battery is sequentially connected, the phase of the cathode of the diode and the power switch and inductance
It connects end to be connected, the diode of several current balance control units is sequentially connected in series, and the last one described current balance control
The anode of the diode of unit processed is connected with the abutment end of corresponding battery and inductance.
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| CN201710105959.5A CN106849242B (en) | 2017-02-24 | 2017-02-24 | A kind of charge control module of movable type charger baby battery management system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107294175A (en) * | 2017-08-03 | 2017-10-24 | 覃振武 | Quick charge device, quick charging system and desktop computer based on Buck circuits |
| CN109980702A (en) * | 2017-12-27 | 2019-07-05 | 南京工程学院 | A kind of energy conservation loss-prevention charger baby |
| CN108429308B (en) * | 2018-03-09 | 2023-08-22 | 西南交通大学 | Single-capacitor centralized equalizer topology and equalizing method thereof |
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