CN107453460A - A kind of intelligence control system of the special wire harness of discharge and recharge - Google Patents
A kind of intelligence control system of the special wire harness of discharge and recharge Download PDFInfo
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- 238000001514 detection method Methods 0.000 claims description 27
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- 238000005070 sampling Methods 0.000 claims description 12
- 230000005347 demagnetization Effects 0.000 claims description 9
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- 238000013461 design Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 238000005538 encapsulation Methods 0.000 abstract description 2
- 238000007726 management method Methods 0.000 description 5
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- 238000004070 electrodeposition Methods 0.000 description 1
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Abstract
The invention discloses a kind of intelligence control system of the special wire harness of discharge and recharge, comprising be sequentially connected civil power AM access module, EMI filtration modules, AD/DC modular converters, charge control module, battery, control of discharge module；Using close inside back cover pole pipe realize start, stand-by power consumption is low, and speed is fast, the present invention using close encapsulation technique, without high-pressure process, it is easy to accomplish, it is cost-effective；The present invention is when output short-circuit, system is automatically into fixed frequency modes, the stability present invention is improved to analyze by the change to electric current in the special wire harness course of work of chargeable storage, the rationally progress of work of control battery, so as to ensure and improve the service life cycle of battery, the present invention provides a kind of three-stage operational amplifier, design triple structure for amplifying, the switching rate of amplifier is significantly improved, it is ingenious in design, it is worthy to be popularized.
Description
Technical field
The invention belongs to field of intelligent monitoring, more particularly to a kind of intelligence control system of the special wire harness of discharge and recharge.
Background technology
With the development of science and technology, various say that each parts are connected to one using wire harness more with electronically controlled equipment
Rise, form a whole, such as new-energy automobile power battery group wire harness.However, many wire harness easily cause misconnection phenomenon, gently
Then burn out equipment, it is heavy then battery bag is exploded；
Battery is widely used among a variety of industrial circles and daily life, its service life and charge less, overcharges
And put excessively closely related.How to be effectively ensured and improve the service life of battery is badly in need of in battery management system design
Solve the problems, such as.
The design of battery management system is mainly carried out in terms of being charged and discharged two, and different application scenarios are taken
Charge and discharge control strategy also emphasize particularly on different fields.At present, charging strategy mainly uses three stage charging system, the hotter mainly arteries and veins of research
Punching charging, it is intended to avoid battery charge less with overcharging；Electric discharge strategy is main by the way of threshold voltage is set, it is intended to avoids storing
Battery, which is crossed, to be put.
Switching Power Supply is widely used in almost all of electronic equipment with the features such as small-sized, light weight and high efficiency, is to work as
Modern electronics and information industry develops rapidly a kind of indispensable power mode.Primary side feedback Switching Power Supply adds because saving optocoupler
TL431 structure, the space on system board is saved, reduce cost and improve the reliability of system, in power management
In be able to fast-developing and extensive use.
Switching Power Supply is widely used in almost all of electronic equipment with the features such as small-sized, light weight and high efficiency, is to work as
Modern electronics and information industry develops rapidly a kind of indispensable power mode.Primary side feedback Switching Power Supply adds because saving optocoupler
TL431 structure, the space on system board is saved, reduce cost and improve the reliability of system, in power management
In be able to fast-developing and extensive use.
The content of the invention
The technical problems to be solved by the invention are to provide the intelligence of the special wire harness of discharge and recharge a kind of for the deficiency of background
Energy control system, is analyzed by the change to voltage and current in battery operation, rationally controls the work of battery
Make process, so as to ensure and improve the service life cycle of battery.
The present invention uses following technical scheme to solve above-mentioned technical problem
A kind of intelligence control system of the special wire harness of discharge and recharge, comprising be sequentially connected civil power AM access module, EMI filtration modules,
AD/DC modular converters, charge control module, battery, control of discharge module；
AD/DC modular converters include flyback transformer, rectification filtering module, start-up circuit, startup control and low pressure locking mould
Block, peak current detection, sampling and keep module, error amplifier, CV control modules, demagnetization time detecting module, CC control moulds
Block, PFM Logic control modules, drive module, power switch pipe M1；The start-up circuit includes a power switch pipe Q1, described
The primary side winding Np of flyback transformer upper end connection external input voltage Vin ends, primary side winding Np lower end connection start
Circuit；The outside rectification filtering module of the secondary side winding Ns connections of the flyback transformer；The assists winding of the transformer
Naux connects the input of sampling and keep module and time detecting module of demagnetizing, the flyback transformer through electric resistance partial pressure respectively
Assists winding Naux through diode be sent into vdd terminal connection start control and low pressure locking module；One end of the start-up circuit
It is also fed into vdd terminal connection and starts control and low pressure locking module, other end connection power switch pipe M1 drain terminal；The power is opened
The source for closing pipe M1 connects the input of peak current detection through CS ends；The output end connection PFM of the peak current detection is patrolled
Collect the input of control；The output end connection voltage output Vout ends of the rectification filtering module；The sampling and keep module
Output end passes sequentially through error amplifier, the input of CV control modules connection PFM Logic control modules；The demagnetization time inspection
The output end for surveying module is also connected to the input of PFM logic controls, the output end of PFM Logic control modules through CC control modules
Power switch pipe M1 and power switch pipe Q1 break-make is controlled by drive module, so as to control flyback transformer primary circuit
Break-make；
The charge control module is connected with battery by special wire harness, and battery is with control of discharge module also by industrial siding
Beam connects；The current detection module being separately positioned on the special wire harness is also included, and is connected with the current detection module
The data processing module connect；The data processing module includes micro controller module, display apparatus module, input module, alarm mould
Block, pwm driver；The current detection module, display apparatus module, input module, alarm module, pwm driver respectively with it is micro-
Controller module connects；The pwm driver is also connected with charge control module, control of discharge module respectively；
A three-stage operational amplifier is also included, the current detection module connects microcontroller mould by three-stage operational amplifier
Block；
Including first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the first electricity
Appearance, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the first diode, the one or three pole
Pipe, the second triode, the 3rd triode；
The first resistor is rheostat, and the sliding end of the first resistor connects one end of the first electric capacity, first electric capacity
The other end connect one end of second resistance, one end of the 3rd electric capacity, one end of 3rd resistor, the base of the first triode respectively
Pole, the other end ground connection of the 3rd resistor, the emitter stage of first triode connect one end of the 5th resistance, the 4th respectively
One end of electric capacity, the other end, the other end of the 4th electric capacity of the 5th resistance are grounded；
The colelctor electrode of first triode connects the other end, one end of the 4th resistance, the second triode of the 3rd electric capacity respectively
Base stage；The emitter stage of second triode connects one end of the 5th electric capacity, the other end ground connection of the 5th electric capacity；It is described
The colelctor electrode of second triode connects the other end of second resistance, one end of the second electric capacity, one end of the 6th electric capacity, the 3rd respectively
The emitter stage of triode；
The other end of second electric capacity connects one end of the 6th resistance, one end of the 7th resistance respectively, the 7th resistance
The other end connects the colelctor electrode of the 3rd triode, one end of the 7th electric capacity, the other end ground connection of the 7th electric capacity respectively；It is described
The other end of 6th resistance connects the anode of the first diode, the base stage of the 3rd triode respectively；The moon of first diode
Pole connects the other end of the 4th resistance；
Wherein, current detection module, for detecting charging current parameter and discharge current parameter in wire harness；
Display apparatus module, for showing gathered charging current parameter and discharge current parameter；
Input module, for setting the charging and discharging currents normality threshold of battery；
Alarm module, for sending police when detecting charging current parameter and discharge current parameter not in the range of normality threshold
Report；
Pwm driver, for the charging current parameter and discharge current parameter according to collection, and then drive charging control circuit and
The pwm signal of charge/discharge control circuit FET.
As a kind of further preferred scheme of the intelligence control system of the special wire harness of discharge and recharge of the present invention, the EMI filters
Ripple module includes common mode inductance, X electric capacity, Y capacitance and bleeder resistance；
The common mode inductance is made up of the coil of two coilings in the same direction, for eliminating loop difference current；
X electric capacity is attempted by common mode inductance both sides, for eliminating DM EMI；
Y capacitance is connected across output end and series connection neutral earthing, is disturbed for suppression common mode；
Bleeder resistance is used to eliminate the accumulation of static electricity occurred in wave filter.
As a kind of further preferred scheme of the intelligence control system of the special wire harness of discharge and recharge of the present invention, the battery
Terminal voltage between the V of 10.5 V~14.0.
As a kind of further preferred scheme of the intelligence control system of the special wire harness of discharge and recharge of the present invention, the PWM drives
The chip model of dynamic device is IR4427.
The present invention compared with prior art, has following technique effect using above technical scheme：
The present invention is analyzed by the change to the electric current in wire harness in discharge and recharge battery operation, rationally controls electric power storage
The progress of work in pond, so as to ensure and improve the service life cycle of battery；
The present invention provides a kind of amplifier circuit of three-stage operational amplifier, designs triple structure for amplifying, significantly improves amplifier
Switching rate, it is ingenious in design, be worthy to be popularized；
The AC-DC change-over circuits of the present invention eliminate outside start-up circuit, substantially reduce the power consumption of actuating section；The present invention uses
Close inside back cover pole pipe and realize and start, stand-by power consumption is low, and speed is fast, and the present invention, without high-pressure process, is easy to real using encapsulation technique is closed
It is existing, cost-effective；For the present invention when output short-circuit, system improves stability automatically into fixed frequency modes.
Brief description of the drawings
Fig. 1 is AD/DC modular converters circuit diagram of the present invention；
Fig. 2 is the three-stage operational amplifier circuit diagram of the present invention.
Embodiment
Technical scheme is described in further detail below：
A kind of intelligence control system of the special wire harness of discharge and recharge, comprising be sequentially connected civil power AM access module, EMI filtration modules,
AD/DC modular converters, charge control module, battery, control of discharge module；
As shown in figure 1, AD/DC modular converters include flyback transformer, rectification filtering module, start-up circuit, start control and
Low pressure locking module, peak current detection, sampling and keep module, error amplifier, CV control modules, demagnetization time detecting mould
Block, CC control modules, PFM Logic control modules, drive module, power switch pipe M1；The start-up circuit is opened comprising a power
Close pipe Q1, the primary side winding Np of flyback transformer upper end connection external input voltage Vin ends, under primary side winding Np
End connection start-up circuit；The outside rectification filtering module of the secondary side winding Ns connections of the flyback transformer；The transformer
Assists winding Naux connects the input of sampling and keep module and time detecting module of demagnetizing, the flyback through electric resistance partial pressure respectively
The assists winding Naux of formula transformer is sent into vdd terminal connection through diode and starts control and low pressure locking module；It is described to start electricity
The one end on road is also fed into vdd terminal connection and starts control and low pressure locking module, other end connection power switch pipe M1 drain terminal；Institute
The source for stating power switch pipe M1 connects the input of peak current detection through CS ends；The output end of the peak current detection connects
Connect the input of PFM logic controls；The output end connection voltage output Vout ends of the rectification filtering module；The sampling is kept
The output end of module passes sequentially through error amplifier, the input of CV control modules connection PFM Logic control modules；The demagnetization
The output end of time detecting module is also connected to the input of PFM logic controls through CC control modules, PFM Logic control modules
Output end controls power switch pipe M1 and power switch pipe Q1 break-make by drive module, so as to control flyback transformer former
The break-make of side circuit；
External input voltage Vin closes inside back cover pole pipe Q1 and resistance RBC, resistance by flyback transformer primary side winding Np connections
RBC provides electric current to triode Q1 base stage, Q1 conductings, through diode D2, is charged to control chip vdd terminal electric capacity C1, works as VDD
When voltage is increased to inner setting voltage VH, UVLO signals are overturn, system start completion, and chip is started working, now vdd voltage
There is provided by assists winding Naux.
RBC in circuit is a big resistance, usually 10M Ω, and electric current is provided to the grid for closing inside back cover pole pipe.Big resistance
The power consumption very little that RBC consumes when system works, and be zero in primary side conducting phase RBC both end voltages, power consumption is not consumed, simultaneously
Electric capacity C1 charging current is Q1 grid current, is β times of resistance RBC electric currents（β is about 30）, start the time greatly shorten.
After chip is started working, raster data model and base drive make M1, Q1 conductings, primary side conducting, according to transformation first
Device principle, secondary side winding voltage is on the contrary, output diode DO anodes are low level, by secondary side is not turned on.When primary side turns on,
Input voltage is linked to ground by primary side winding, Q1, M1, RCS, and primary side induction charging, primary current is gradually increasing, and this electric current leads to
RCS is crossed in the form of a voltage from current detecting（CS）End is fed back in chip, when CS terminal voltages reach inner setting, peak value electricity
Detection comparator output switching activity is flowed, controls drive module to make M1, Q1 shut-offs, primary side shut-off by logic circuit.It is former according to inductance
Reason, inductive current can not be mutated, secondary side voltage reversal, output diode DO conductings, secondary side conducting.Secondary side conducting phase, that is, move back
In the magnetic stage, secondary side winding Ns voltage i.e. output voltage reflection is on assists winding Naux, by electric resistance partial pressure R1, R2,
Obtain FB voltages, a series of circuits such as the sampled holding of FB voltages is with reference voltage compared with, so as to control Q1, M1 switch is frequently
Rate, and then control output voltage.So the primary side winding Np and secondary side winding Ns of flyback transformer are not simultaneously turned on.
The work of chip is divided into three kinds of mode of operations：Fixed frequency modes, CC（Constant current）Pattern, CV（Constant pressure）Pattern.When
FB voltages VFB<During 0.5V, fixed frequency modes are operated in（38KHz）, 0.5V<VFB<During 2V（Vref1=2V）, switch to CC works
Operation mode.Chip startup stage switches to CV working conditions when completing, and when load continues increase, system back switches to CC works
Operation mode.
When chip is started working, fixed frequency control signal driving Q1 and M1 conductings, input voltage is carried in primary side winding
Both ends, the referred to as conducting of primary side branch road, conducting phase.Primary current is gradually increasing, current detecting end（CS）Voltage is gradually increasing, when
When it rises to internal reference voltage Vref2, peak current detection comparator output switching activity, Q1, M1 are turned off, and secondary side winding is led
Logical, energy release, demagnetization phase starts.
In demagnetization phase, output voltage is reflected on primary side assists winding Naux with certain proportion, is divided through resistance R1, R2
Pressure, it is sent into pressure feedback port（FB）.Again by sampling hold circuit, the voltage at demagnetization phase 3/4 is obtained（Voltage herein is more
Add accurately reaction output voltage）, and reference voltage is together sent into error amplifier.Ladder raised voltage is produced by oscillator,
Through PFM pulse frequency modulateds, frequency control signal is produced, controls drive circuit.
The charge control module is connected with battery by special wire harness, and battery is with control of discharge module also by special
Connected with wire harness；Also comprising being separately positioned on current detection module on the special wire harness, and with the current detecting mould
The data processing module of block connection；The data processing module includes micro controller module, display apparatus module, input module, report
Alert module, pwm driver；The current detection module, display apparatus module, input module, alarm module, pwm driver difference
It is connected with micro controller module；The pwm driver is also connected with charge control module, control of discharge module respectively；
Also include a three-stage operational amplifier, as shown in Fig. 2 the current detection module connected by three-stage operational amplifier it is micro-
Controller module；
Including first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the first electricity
Appearance, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the first diode, the one or three pole
Pipe, the second triode, the 3rd triode；
The first resistor is rheostat, and the sliding end of the first resistor connects one end of the first electric capacity, first electric capacity
The other end connect one end of second resistance, one end of the 3rd electric capacity, one end of 3rd resistor, the base of the first triode respectively
Pole, the other end ground connection of the 3rd resistor, the emitter stage of first triode connect one end of the 5th resistance, the 4th respectively
One end of electric capacity, the other end, the other end of the 4th electric capacity of the 5th resistance are grounded；
The colelctor electrode of first triode connects the other end, one end of the 4th resistance, the second triode of the 3rd electric capacity respectively
Base stage；The emitter stage of second triode connects one end of the 5th electric capacity, the other end ground connection of the 5th electric capacity；It is described
The colelctor electrode of second triode connects the other end of second resistance, one end of the second electric capacity, one end of the 6th electric capacity, the 3rd respectively
The emitter stage of triode；
The other end of second electric capacity connects one end of the 6th resistance, one end of the 7th resistance respectively, the 7th resistance
The other end connects the colelctor electrode of the 3rd triode, one end of the 7th electric capacity, the other end ground connection of the 7th electric capacity respectively；It is described
The other end of 6th resistance connects the anode of the first diode, the base stage of the 3rd triode respectively；The moon of first diode
Pole connects the other end of the 4th resistance；
Wherein, current detection module, for detecting charging current parameter and discharge current parameter in wire harness；
Display apparatus module, for showing gathered charging current parameter and discharge current parameter；
Input module, for setting the charging and discharging currents normality threshold of battery；
Alarm module, for sending alarm when detecting charging current parameter and discharge current parameter not in the range of normality threshold；
Pwm driver, for the charging current parameter and discharge current parameter according to collection, and then drive charging control circuit and
The pwm signal of charge/discharge control circuit FET；
EMI filtration modules：Electromagnetic interference caused by Switching Power Supply（EMI）Mainly based on Conduction Interference and near-field interference, including
2 kinds of states of common mode disturbances and DM EMI.Electromagnetic interface filter can effectively filter out common mode and DM EMI in power network.EMI is filtered
Circuit is mainly made up of common mode inductance, X electric capacity, Y capacitance and bleeder resistance.Common mode inductance by two coilings in the same direction coil group
Into for eliminating loop difference current；X electric capacity is attempted by common mode inductance both sides, for eliminating DM EMI；Y capacitance is connected across
Output end and series connection neutral earthing, are disturbed for suppression common mode；Bleeder resistance is likely to occur quiet for elimination in wave filter
Electrodeposition tires out.
High frequency transformer：High frequency transformer design be Switching Power Supply design in most important link, transformer performance it is excellent
The bad job stability and performance for directly affecting Switching Power Supply.
Terminal voltage changes 12 V batteries between the V of 10.5 V~14.0 in the course of the work, Chip Microcomputer A/D convert reference
Voltage is 5 V, it is therefore desirable to which sampled signal is linearly nursed one's health.The design uses resistance as 400 k Ω and 100 k Ω, essence
Spend and carry out partial pressure sampling, partial pressure coefficient k=0.2 for 1% resistance.
Accumulator cell charging and discharging electric current is obtained using Hall sensor.Because 2.5 V direct current biasings be present in the output of sensor,
To eliminate bias voltage, single-chip microcomputer conversion is reduced with calculating the time, difference channel is built using LM358, obtains actual electric current
Change voltage and carry out AD samplings.
The presence of circuit noise and external interference to be mixed with various noises in AD sampled signals, to improve sampled signal letter
Make an uproar and compare, use Butterworth LPF design method to devise cut-off frequecy of passband as 100 Hz herein, stopband cutoff frequency
Rate is 500 Hz, and the second order active low pass filter that output gain is 1 is filtered processing to signal.System uses PWM mode
Realize the unified management to accumulator charging/discharging process.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deductions can also be made or substituted, should all be considered as belonging to the present invention's
Protection domain.
Claims (5)
- A kind of 1. intelligence control system of the special wire harness of discharge and recharge, it is characterised in that：Comprising the civil power AM access module being sequentially connected, EMI filtration modules, AD/DC modular converters, charge control module, battery, control of discharge module；AD/DC modular converters include flyback transformer, rectification filtering module, start-up circuit, startup control and low pressure locking mould Block, peak current detection, sampling and keep module, error amplifier, CV control modules, demagnetization time detecting module, CC control moulds Block, PFM Logic control modules, drive module, power switch pipe M1；The start-up circuit includes a power switch pipe Q1, described The primary side winding Np of flyback transformer upper end connection external input voltage Vin ends, primary side winding Np lower end connection start Circuit；The outside rectification filtering module of the secondary side winding Ns connections of the flyback transformer；The assists winding of the transformer Naux connects the input of sampling and keep module and time detecting module of demagnetizing, the flyback transformer through electric resistance partial pressure respectively Assists winding Naux through diode be sent into vdd terminal connection start control and low pressure locking module；One end of the start-up circuit It is also fed into vdd terminal connection and starts control and low pressure locking module, other end connection power switch pipe M1 drain terminal；The power is opened The source for closing pipe M1 connects the input of peak current detection through CS ends；The output end connection PFM of the peak current detection is patrolled Collect the input of control；The output end connection voltage output Vout ends of the rectification filtering module；The sampling and keep module Output end passes sequentially through error amplifier, the input of CV control modules connection PFM Logic control modules；The demagnetization time inspection The output end for surveying module is also connected to the input of PFM logic controls, the output end of PFM Logic control modules through CC control modules Power switch pipe M1 and power switch pipe Q1 break-make is controlled by drive module, so as to control flyback transformer primary circuit Break-make；The charge control module is connected with battery by special wire harness, and battery is with control of discharge module also by industrial siding Beam connects；The current detection module being separately positioned on the special wire harness is also included, and is connected with the current detection module The data processing module connect；The data processing module includes micro controller module, display apparatus module, input module, alarm mould Block, pwm driver；The current detection module, display apparatus module, input module, alarm module, pwm driver respectively with it is micro- Controller module connects；The pwm driver is also connected with charge control module, control of discharge module respectively；A three-stage operational amplifier is also included, the current detection module connects microcontroller mould by three-stage operational amplifier Block；Including first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the first electricity Appearance, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the first diode, the one or three pole Pipe, the second triode, the 3rd triode；The first resistor is rheostat, and the sliding end of the first resistor connects one end of the first electric capacity, first electric capacity The other end connect one end of second resistance, one end of the 3rd electric capacity, one end of 3rd resistor, the base of the first triode respectively Pole, the other end ground connection of the 3rd resistor, the emitter stage of first triode connect one end of the 5th resistance, the 4th respectively One end of electric capacity, the other end, the other end of the 4th electric capacity of the 5th resistance are grounded；The colelctor electrode of first triode connects the other end, one end of the 4th resistance, the second triode of the 3rd electric capacity respectively Base stage；The emitter stage of second triode connects one end of the 5th electric capacity, the other end ground connection of the 5th electric capacity；It is described The colelctor electrode of second triode connects the other end of second resistance, one end of the second electric capacity, one end of the 6th electric capacity, the 3rd respectively The emitter stage of triode；The other end of second electric capacity connects one end of the 6th resistance, one end of the 7th resistance respectively, the 7th resistance The other end connects the colelctor electrode of the 3rd triode, one end of the 7th electric capacity, the other end ground connection of the 7th electric capacity respectively；It is described The other end of 6th resistance connects the anode of the first diode, the base stage of the 3rd triode respectively；The moon of first diode Pole connects the other end of the 4th resistance；Wherein, current detection module, for detecting charging current parameter and discharge current parameter in wire harness；Display apparatus module, for showing gathered charging current parameter and discharge current parameter；Input module, for setting the charging and discharging currents normality threshold of battery；Alarm module, for sending police when detecting charging current parameter and discharge current parameter not in the range of normality threshold Report；Pwm driver, for the charging current parameter and discharge current parameter according to collection, and then drive charging control circuit and The pwm signal of charge/discharge control circuit FET.
- A kind of 2. intelligence control system of the special wire harness of discharge and recharge according to claim 1, it is characterised in that：The EMI Filtration module includes common mode inductance, X electric capacity, Y capacitance and bleeder resistance；The common mode inductance is made up of the coil of two coilings in the same direction, for eliminating loop difference current；X electric capacity is attempted by common mode inductance both sides, for eliminating DM EMI；Y capacitance is connected across output end and series connection neutral earthing, is disturbed for suppression common mode；Bleeder resistance is used to eliminate the accumulation of static electricity occurred in wave filter.
- A kind of 3. intelligence control system of the special wire harness of discharge and recharge according to claim 1, it is characterised in that：The electric power storage The terminal voltage in pond is between the V of 10.5 V~14.0.
- A kind of 4. intelligence control system of the special wire harness of discharge and recharge according to claim 1, it is characterised in that：The charging Current detection module and discharge current detection module use Hall sensor.
- A kind of 5. intelligence control system of the special wire harness of discharge and recharge according to claim 1, it is characterised in that：The PWM The chip model of driver is IR4427.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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