CN110391686A - Charge-discharge control circuit - Google Patents
Charge-discharge control circuit Download PDFInfo
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- CN110391686A CN110391686A CN201910769697.1A CN201910769697A CN110391686A CN 110391686 A CN110391686 A CN 110391686A CN 201910769697 A CN201910769697 A CN 201910769697A CN 110391686 A CN110391686 A CN 110391686A
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- 238000005070 sampling Methods 0.000 claims description 40
- 239000003990 capacitor Substances 0.000 claims description 17
- 230000005611 electricity Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000010354 integration Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 abstract description 8
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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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H02J7/0077—
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- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the invention discloses a charge-discharge control circuit, which comprises: the charge-discharge module is used for charging or discharging the battery; the adjusting module is used for receiving battery feedback voltage and battery feedback current provided by the charging and discharging module, generating a voltage control signal by the battery feedback voltage and the reference voltage, generating a current control signal by the battery feedback current and the reference current, and adjusting the first voltage and/or the second voltage; the compensation module is used for compensating the battery feedback voltage to generate a feedback compensation voltage and compensating the battery feedback current to generate a feedback compensation current; the control module adjusts the reference voltage according to the battery feedback voltage and adjusts the reference current according to the battery feedback current. The problems that in the prior art, a charge and discharge control circuit is slow in reaction time and low in processing efficiency and cannot automatically regulate and control charge or discharge voltage are solved, and the effects of being fast in reaction time, high in processing efficiency and capable of automatically regulating and controlling the charge or discharge voltage in time are achieved.
Description
Technical field
The present embodiments relate to charge and discharge power technology more particularly to a kind of charge-discharge control circuits.
Background technique
Electrochmical power source of the battery as a kind of reliable performance, in electric system, communications and transportation, portable electronic product etc.
Industrial circle is widely applied.Wherein, how to carry out charge and discharge to battery is current research hot spot, existing many straight
Stream transformer is a kind of power supply directly DC conversion for direct current, is mainly realized by boosting and being depressured, Bu Nengshi
Existing two-way flow.
In the charge-discharge control circuit of the prior art, the reaction time is slow, and treatment effeciency is lower, and integrated level is low to cause volume
It is larger and adjust Current Voltage software systems is needed to control to adjust, it is unable to the automatic adjustment of hardware internals.
Summary of the invention
The present invention provides a kind of charge-discharge control circuit, to realize that the reaction time is fast, treatment effeciency is high and timely automated tune
Control the effect of charge or discharge voltage.
The embodiment of the invention provides a kind of charge-discharge control circuits, comprising: charge-discharge modules, adjustment module, compensation mould
Block and control module,
The charge-discharge modules are used to being converted to the first voltage of supply node into second voltage and charge to battery, or will be electric
Cell voltage is converted to first voltage supplying power for outside；
The adjustment module is connect with the charge-discharge modules, for receiving the battery feedback voltage of charge-discharge modules offer
With battery feedback current, the adjustment module generates voltage control signal, institute according to the battery feedback voltage and reference voltage
It states adjustment module and current controling signal is generated according to the battery feedback current and reference current, the adjustment module is according to
Voltage control signal and the current controling signal adjust the size of the first voltage and/or second voltage；
The compensating module is connect with the adjustment module, for compensating generation feedback to the battery feedback voltage
Offset voltage, and the battery feedback current is compensated and generates feedback compensation electric current；
Control module is connect with the adjustment module and the compensating module, and the control module is anti-according to the battery
Feedthrough voltage adjusts the size of the reference voltage, and the control module adjusts the reference current according to the battery feedback current
Size.
It optionally, further include drive module, the drive module is connected to the adjustment module and the charge-discharge modules
Between, for switching the charge and discharge process of the charge-discharge modules and according to the voltage control signal and electric current of the adjustment module
Control second voltage described in Signal Regulation.
Optionally, the driving circuit includes switch Q1, switch Q2, inductance L2, MOS driver M1, the switch Q1 use
In the switching charge-discharge modules charge and discharge process；The switch Q2 is for adjusting the second voltage；Inductance L2 is for storing
The first voltage of the adjustment module transmission；The MOS driver M1 is for controlling the switch Q1 and the switch Q2
Switch state；The switch Q1 and switch Q2 is connected on the MOS driver M1；The inductance L1 first end connection
To the switch Q2, second end ground connection.
Optionally, the charge-discharge modules include direct-flow input end IN, inductance L1, sampling resistor Rcl, capacitor C1, sampling
Resistance Rs and battery D1；The direct-flow input end IN is used to provide the described first voltage；The inductance L1 is for storing described the
One voltage or the consumption second voltage；The sampling resistor Rcl is for acquiring the sampling resistor Rcl both end voltage；It is described
Capacitor C1 is for storing the second voltage or the consumption second voltage；The sampling resistor Rs is for acquiring the sampling electricity
Hinder Rs both end voltage；The battery D1 is for storing second voltage or the release second voltage.
Optionally, the direct-flow input end IN is connected to the switch Q1 first end；The inductance L1 first end connects institute
State switch Q1 second end；The inductance L1 second end is connected to the first end of the sampling resistor Rcl；The sampling resistor Rcl
Second end be connected to the first end of the capacitor C1；The second end of the capacitor C1 is grounded；The first of the sampling resistor Rs
End is connected to the second end of the sampling resistor Rcl；The sampling resistor Rs second end is connected to the battery D1 anode；It is described
The cathode of battery D1 is grounded.
Optionally, the adjustment module includes: modulation controller PWM, power amplifier P1, power amplifier P2, power
Amplifier P3, power amplifier P4, power amplifier P5, converter Z1, buffer F1, voltage-stablizer W1, clock generator S1 and
Constant-current source H1；The modulation controller PWM is instructed with transmission for storing data；The power amplifier P1 is generated for integrating
The battery feedback voltage；The power amplifier P2 generates the battery feedback current for integrating；The power amplifier
P3 generates the voltage control signal for integrating the battery feedback voltage and the reference voltage；The power amplifier P4
The current controling signal is generated for integrating the battery feedback current and the reference current；The converter Z1 is for whole
Close the voltage control signal and the current controling signal；The buffer F1 is used for buffering signals；The voltage-stablizer W1 is used
In stabilizing circuit；The clock generator S1 and constant-current source H1 is for generating clock signal；The power amplifier P5 is for whole
Close constant-current source and clock signal.
Optionally, the power amplifier P1 input terminal is connected to the both ends of the battery D1, and output is connected to the function
Rate amplifier P3 input terminal；The power amplifier P2 input terminal is connected to the sampling resistor Rs, and output end is connected to described
Rate amplifier P4 input terminal；The power amplifier P4 output end and the power amplifier P5 output end are connected to the conversion
Device Z1；The converter Z1 other end connects the buffer F1；The buffer F1 output end is connected to the modulation control
Device PWM；Clock generator S1 and constant-current source H1 is connected to the modulation controller PWM, and the voltage-stablizer W1 first end is connected to
The modulation controller PWM, second end ground connection.
Optionally, the compensating module includes: compensation circuit B1 and compensation circuit B2, the connection of the one end the compensation circuit B1
To the adjustment module, the other end is connected to the control module；The one end the compensation circuit B2 is connected to the adjustment module,
The other end is connected to the control module.
Optionally, the control module includes converter Z2, converter Z3, converter Z4 and controller MCU；The conversion
The device Z2 and converter Z3 is for converting digital signals into analog signal；The converter Z4 is for converting analog signal
For digital signal；The controller MCU is for receiving digital signal and issuing control instruction.
Optionally, the one end the converter Z2 connects the power amplifier P3, and the other end connects the controller MCU；
The one end the converter Z3 connects the power amplifier P4, and the other end connects the controller MCU；The one end the converter Z3
The compensating module is connected, the other end connects the controller MCU.
A kind of charge-discharge control circuit provided in this embodiment, passes through charge-discharge modules, adjustment module, compensating module and control
Molding block, the charge-discharge modules are used to being converted to the first voltage of supply node into second voltage and charge to battery, or will be electric
Cell voltage is converted to first voltage supplying power for outside；The adjustment module is connect with the charge-discharge modules, for receiving charge and discharge
The battery feedback voltage and battery feedback current that module provides, the adjustment module is according to the battery feedback voltage and with reference to electricity
Pressure generates voltage control signal, and the adjustment module generates current control according to the battery feedback current and reference current and believes
Number, the adjustment module adjusts the first voltage and/or the according to the voltage control signal and the current controling signal
The size of two voltages；The compensating module is connect with the adjustment module, for compensating life to the battery feedback voltage
At feedback compensation voltage, and the battery feedback current is compensated and generates feedback compensation electric current；Control module, with the tune
Section module is connected with the compensating module, and the control module adjusts the big of the reference voltage according to the battery feedback voltage
Small, the control module adjusts the size of the reference current according to the battery feedback current.It solves and fills in the prior art
The problem of charge/discharge control circuit reaction time is slow, and treatment effeciency is low, is unable to auto-control charge or discharge voltage, realizes reaction
Time is fast, treatment effeciency is high and the effect of timely automated regulation charge or discharge voltage.
Detailed description of the invention
Fig. 1 is the module connection relationship diagram in the embodiment of the present invention one；
Fig. 2 is the circuit connecting relation schematic diagram in the embodiment of the present invention one.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
It should be mentioned that some exemplary embodiments are described as before exemplary embodiment is discussed in greater detail
The processing or method described as flow chart.Although each step is described as the processing of sequence by flow chart, many of these
Step can be implemented concurrently, concomitantly or simultaneously.In addition, the sequence of each step can be rearranged.When its operation
Processing can be terminated when completion, it is also possible to have the additional step being not included in attached drawing.Handle the side of can correspond to
Method, function, regulation, subroutine, subprogram etc..
In addition, term " first ", " second " etc. can be used to describe herein various directions, movement, step or element etc.,
But these directions, movement, step or element should not be limited by these terms.These terms are only used to by first direction, movement, step
Rapid or element and another direction, movement, step or element are distinguished.For example, the case where not departing from scope of the present application
Under, it can be second speed difference by First Speed difference, and similarly, it is poor second speed difference can be known as First Speed
Value.First Speed difference and second speed difference both speed difference, but it is not same speed difference.Term " the
One ", " second " etc. is not understood to indicate or imply relative importance or implicitly indicates the number of indicated technical characteristic
Amount." first " is defined as a result, the feature of " second " can explicitly or implicitly include one or more of the features.
In the description of the present invention, the meaning of " plurality " is at least two, such as two, three etc., unless otherwise clearly specific limit
It is fixed.
Embodiment one
Fig. 1 is the module connection relationship diagram in the embodiment of the present invention one, and Fig. 2 is the circuit in the embodiment of the present invention one
Connection relationship diagram present embodiments provides a kind of charge-discharge control circuit, comprising: charge-discharge modules 1, are mended at adjustment module 2
Repay module 3, control module 4 and drive module 5.Drive module includes switch Q1 and switch Q2.
The charge-discharge modules 1 are used to being converted to the first voltage of supply node into second voltage and charge to battery, or will
Cell voltage is converted to first voltage supplying power for outside.
In the present embodiment, charge-discharge modules 1 can receive the first voltage of external power supply offer and arrive its voltage increase
Second voltage is stored into battery by charging circuit, and generally, in charging, first voltage is less than second voltage, charging electricity
Road is boost charge circuit.Charge-discharge modules 1, which can also discharge the voltage stored in battery, makes load consumption.Pass through battery
Charge and discharge external loading can be guaranteed using electric energy, moreover it is possible to charge to circulating battery, repeatedly use, improve energy benefit
With rate.
In one embodiment, the charge-discharge modules 1 include direct-flow input end IN, inductance L1, sampling resistor Rcl, capacitor C1,
Sampling resistor Rs and battery D1；The direct-flow input end IN is used to provide the described first voltage；The inductance L1 is for storing institute
State first voltage or the consumption second voltage；The sampling resistor Rcl is for acquiring the sampling resistor Rcl both end voltage；
The capacitor C1 is for storing the second voltage or the consumption second voltage；The sampling resistor Rs is for acquiring described adopt
Sample resistance Rs both end voltage；The battery D1 is for storing electric energy or the release second voltage.
The direct-flow input end IN is connected to the switch Q1 first end；The inductance L1 first end connects the switch Q1
Second end；The inductance L1 second end is connected to the first end of the sampling resistor Rcl；The second end of the sampling resistor Rcl
It is connected to the first end of the capacitor C1；The second end of the capacitor C1 is grounded；The first end of the sampling resistor Rs is connected to
The second end of the sampling resistor Rcl；The sampling resistor Rs second end is connected to the battery D1 anode；The battery D1's
Cathode ground connection.
In the present embodiment, direct-flow input end IN is the input terminal of extraneous power supply, and illustratively, direct-flow input end IN provides straight
Current charge voltage, preferably 5V in the present embodiment.Boost parts when inductance L1 and capacitor C1 is charging, can input direct current
The 5V voltage at end improves, i.e., increases battery D1 both ends charging voltage, improves charge efficiency.The both ends sampling resistor Rcl are connected to
In adjustment module 2, adjustment module 2 confirms the operating current of charge-discharge modules 1 by receiving the voltage at the both ends sampling resistor Rcl,
So as to adjust and stablize the both ends battery D1 charging voltage.The both ends sampling resistor Rs are connected in adjustment module 2, adjustment module
2 acquisitions flow through the electric current of sampling resistor Rs to obtain battery current.The both ends battery D1 are connected in adjustment module 2, adjust mould
Block 2 acquires battery D1 both end voltage, to obtain cell voltage.Above-mentioned cell voltage, battery current are provided to adjusting mould respectively
Battery feedback voltage and battery feedback current of the block 2 as charge-discharge modules 1.
The adjustment module 2 is connect with the charge-discharge modules 1, for receiving the battery feedback of the offer of charge-discharge modules 1
Voltage and battery feedback current, the adjustment module 2 generate voltage control letter according to the battery feedback voltage and reference voltage
Number, the adjustment module 2 generates current controling signal, the adjustment module 2 according to the battery feedback current and reference current
The size of the first voltage and/or second voltage is adjusted according to the voltage control signal and the current controling signal.
In the present embodiment, adjustment module 2 is used to receive the battery feedback current and battery feedback voltage of charge-discharge modules 1,
Battery feedback current is to be determined by measuring the voltage difference at the both ends sampling resistor Rs, the both ends electricity that battery feedback voltage is battery D1
Pressure difference, and receive current compensation and voltage compensation in control module 4 and battery feedback current and battery feedback voltage are fitted
Answering property adjusts to obtain current controling signal and voltage control signal, and current controling signal is compensated size of current, voltage control
Signal processed is compensated voltage swing.Illustratively, if battery feedback current and battery feedback voltage are lower than preset value at this time,
Then battery feedback current and battery feedback voltage are compensated by current compensation and voltage compensation, reach preset value.
Later, voltage control signal and current controling signal are integrated to obtain and needs adjustment signal, which includes voltage or electric current
Adjusted value, which is input in charge-discharge modules 1, the voltage or electric current of charge or discharge can be adjusted.
One adjustment module 2 include: modulation controller PWM, power amplifier P1, power amplifier P2, power amplifier P3,
Power amplifier P4, power amplifier P5, converter Z1, buffer F1, voltage-stablizer W1, clock generator S1 and constant-current source H1；
The modulation controller PWM is used for according to input parameter, such as battery feedback voltage, battery feedback current and charge-discharge modules 1
Operating current, generate pulse-width control signal with the switch periods or frequency of control switch Q1 and switch Q2；The power amplification
Device P1 generates the battery feedback voltage for integrating；The power amplifier P2 generates the battery feedback electricity for integrating
Stream；The power amplifier P3 generates the voltage control letter for integrating the battery feedback voltage and the reference voltage
Number；The power amplifier P4 generates the current control letter for integrating the battery feedback current and the reference current
Number；The converter Z1 is for integrating the voltage control signal and the current controling signal；The buffer F1 is for delaying
Rush signal；The voltage-stablizer W1 is for stablizing the voltage of input adjustment module 2；The clock generator S1 and constant-current source H1 are used for
Generate clock signal；The power amplifier P5 is for integrating constant-current source and clock signal.
The power amplifier P1 input terminal is connected to the both ends of the battery D1, and output is connected to the power amplifier
P3 input terminal；The power amplifier P2 input terminal is connected to the both ends of the sampling resistor Rs, and the power amplifier P2 is defeated
Outlet is connected to the rate amplifier P4 input terminal；The power amplifier P4 output end and the power amplifier P5 output end
It is connected to the converter Z1；The converter Z1 other end connects the buffer F1 input terminal；The buffer F1 output
End is connected to the modulation controller PWM；Clock generator S1 and constant-current source H1 is connected to the modulation controller PWM to provide
Clock signal, the voltage-stablizer W1 first end are connected to the modulation controller PWM, second end ground connection.
In the present embodiment, adjustment module 2 is an IC chip, includes multiple pins, and chip is connected by pin
To external other component.Modulation controller PWM can carry out pulse width modulation, be a kind of analog control mode, according to corresponding
Load changes to modulate the biasing of transistor base or metal-oxide-semiconductor grid as switch Q1 or switch Q2, Lai Shixian transistor
Or the change of metal-oxide-semiconductor turn-on time, to realize the change of switching power supply output.Modulation controller PWM is connected to pressure stabilizing
It after device W1, is grounded after being connected to capacitor C2 by pin Vcc, the capacitor C2 other end is connected to charge-discharge modules 1, modulation controller
PWM can be adjusted by voltage of this branch to charge-discharge modules 1.Modulation controller PWM is connected by pin VREG
It is grounded after to capacitor C3.Modulation controller PWM is established by the controller MCU in pin CHG/DIS and EN and control module 4 to be connected
It connects.Modulation controller PWM is grounded after being connected to inductance L3 by pin FREQ.Modulation controller PWM is connected to by pin SS
It is grounded after capacitor C4.Preferably, modulation controller PWM can select the chip of model AD8452.
The compensating module 3 is connect with the adjustment module 2, anti-for compensating generation to the battery feedback voltage
Offset voltage is presented, and the battery feedback current is compensated and generates feedback compensation electric current.
The compensating module 3 includes: compensation circuit B1 and the one end compensation circuit B2, the compensation circuit B1 be connected to it is described
Adjustment module 2, the other end are connected to the control module 4；The one end the compensation circuit B2 is connected to the adjustment module 2, separately
One end is connected to the control module 4.
In the present embodiment, compensation circuit B1 and compensation circuit B2 can play the role of adjusting control voltage, pass through ring
The duty ratio of road feedback control pulse voltage adjusts output voltage, can also shield, once output electric current is excessive, leads to
Crossing loop feedback control can be with current limliting or cutting voltage output.After compensation circuit B1 receives the integration of power amplifier P1 transmission
Battery feedback voltage simultaneously compensates regulation to it, is then transported to battery feedback voltage in power amplifier P3 and controller
The reference voltage integration of MCU transmission.Compensation circuit B2 receives the battery feedback current after the integration of power amplifier P2 transmission simultaneously
Regulation is compensated to it, then battery feedback current is transported to the reference in power amplifier P3 with controller MCU transmission
Electric current integration.Compensation circuit B1 and compensation circuit B2 converter Z1 by voltage control signal and current controling signal integration after,
Controller MCU storage is transmitted back to after signal and compensation adjustment after receiving its integration.
Control module 4 is connect with the adjustment module 2 and the compensating module 3, and the control module 4 is according to the electricity
Pond feedback voltage adjusts the size of the reference voltage of input power amplifier P3, and the control module is anti-according to the battery
Supply current adjusts the size of reference current described in input power amplifier P4.
In the present embodiment, control module 4 can be by receiving digital signal and storing to carry out processing and calculating or assign
Control instruction is into adjustment module 2 or compensating module 3.
The control module 4 includes converter Z2, converter Z3, converter Z4 and controller MCU；The converter Z2 and
The converter Z3 is for converting digital signals into analog signal；The converter Z4 is for converting analog signals into number
Signal；The controller MCU is for receiving digital signal and issuing control instruction.
The one end the converter Z2 connects the power amplifier P3, and the other end connects the controller MCU；The conversion
The one end device Z3 connects the power amplifier P4, and the other end connects the controller MCU；Described in the connection of the one end the converter Z3
Compensating module, the other end connect the controller MCU.
In the present embodiment, converter Z2 and converter Z3 are digital analog converter, for converting digital signals into simulation letter
It number is transferred to and is transported in adjustment module 2 and compensating module 3 again.Converter Z4 is analog-digital converter, for turning analog signal
It is changed to digital signal, is transported in controller MCU and handles after the signal that controller MCU is issued is converted.Controller MCU meeting
Battery feedback voltage after power amplifier P1 is integrated is received by converter Z4, passes through converter Z4 and receives power amplifier P2
Battery feedback current after integration obtains voltage compensation according to battery feedback voltage after integration, according to whole compared with predeterminated voltage
Battery feedback current and predetermined current after conjunction relatively obtain current compensation, then to battery feedback current and battery feedback voltage
It compensates, reaches preset value.Controller MCU also passes through converter Z4 and connects respectively from compensation circuit B1 and compensation circuit B2
The signal data for integrating voltage control signal and current controling signal exported from converter Z1 is received, and stores the number
According to.When charging voltage or the excessive influence circuit of discharge voltage, controller MCU can control to adjust module disconnection, stop working, and protect
Protection circuit.In alternative embodiment, the pin MODE of controller is connected to the switch before power amplifier P2, can control electricity
The switching of the interface of the positive negative input of pond feedback current；When charge-discharge modules 1 are in charge mode, the left end resistance Rs electric current is high
In right end electric current, after controller MCU is detected, switch switching circuit is controlled, left end electric current is being input to power amplifier P2 just
Pole, right end electric current are input to power amplifier P2 cathode；When charge-discharge modules 1 are in discharge mode, the left end resistance Rs electric current
Lower than right end electric current, at this time after switch switching circuit, left end electric current is input to power amplifier P2 cathode, the input of right end electric current
To power amplifier P2 anode.
The drive module 5 is connected between the adjustment module 5 and the charge-discharge modules 1, for switching described fill
The charge and discharge process of discharge module and described the is adjusted according to the voltage control signal and current controling signal of the adjustment module
Two voltages.
The driving circuit further includes inductance L2, MOS driver M1, and the switch Q1 is for switching the charge-discharge modules
Charge and discharge process；The switch Q2 is for adjusting the second voltage；Inductance L2 is used to store the institute of the adjustment module transmission
State first voltage；The MOS driver M1 is used to be converted to the pulse-width adjustment signal that adjustment module 5 provides simulation control letter
Number, to control the switch state of the switch Q1 and the switch Q2, such as the frequency and switch periods accounting of switch；It is described to open
The Q1 and switch Q2 is closed to be connected on the MOS driver M1；The inductance L1 first end is connected to the switch Q2, and second
End ground connection.
In the present embodiment, drive module 5 receives the control signal of adjustment module 2 and makes voltage tune to charge-discharge modules 1
It is whole.When switch Q1 is opened, charge-discharge modules 1 are in charged state, and when switch Q1 is closed, charge-discharge modules 1 are in discharge condition.
Metal-oxide-semiconductor M1 can receive the pulse-width adjustment signal of modulation controller PWM, opens switch Q2 by intermittence, reaches to charge and discharge
The charging voltage or discharge voltage of module 1 are adjusted.
A kind of charge-discharge control circuit provided in this embodiment, passes through charge-discharge modules, adjustment module, compensating module and control
Molding block, the charge-discharge modules are used to being converted to the first voltage of supply node into second voltage and charge to battery, or will be electric
Cell voltage is converted to first voltage supplying power for outside；The adjustment module is connect with the charge-discharge modules, for receiving charge and discharge
The battery feedback voltage and battery feedback current that module provides, the adjustment module is according to the battery feedback voltage and with reference to electricity
Pressure generates voltage control signal, and the adjustment module generates current control according to the battery feedback current and reference current and believes
Number, the adjustment module adjusts the first voltage and/or the according to the voltage control signal and the current controling signal
The size of two voltages；The compensating module is connect with the adjustment module, for compensating life to the battery feedback voltage
At feedback compensation voltage, and the battery feedback current is compensated and generates feedback compensation electric current；Control module, with the tune
Section module is connected with the compensating module, and the control module adjusts the big of the reference voltage according to the battery feedback voltage
Small, the control module adjusts the size of the reference current according to the battery feedback current.It solves and fills in the prior art
The problem of charge/discharge control circuit reaction time is slow, and treatment effeciency is low, is unable to auto-control charge or discharge voltage, realizes reaction
Time is fast, treatment effeciency is high and the effect of timely automated regulation charge or discharge voltage.
By the description above with respect to embodiment, it is apparent to those skilled in the art that, the present invention
It can be realized by software and required common hardware, naturally it is also possible to which by hardware realization, but in many cases, the former is more
Good embodiment.Based on this understanding, technical solution of the present invention substantially in other words contributes to the prior art
Part can be embodied in the form of software products, which can store in computer readable storage medium
In, floppy disk, read-only memory (Read-Only Memory, ROM), random access memory (Random such as computer
Access Memory, RAM), flash memory (FLASH), hard disk or CD etc., including some instructions are with so that a computer is set
Standby (can be personal computer, server or the network equipment etc.) executes method described in each embodiment of the present invention.
It is worth noting that, in the embodiment of above-mentioned charge-discharge control circuit, included each unit and module are
It is divided according to the functional logic, but is not limited to the above division, as long as corresponding functions can be realized；Separately
Outside, the specific name of each functional unit is also only for convenience of distinguishing each other, the protection scope being not intended to restrict the invention.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of charge-discharge control circuit characterized by comprising charge-discharge modules, adjustment module, compensating module and control mould
Block,
The charge-discharge modules are used to being converted to the first voltage of supply node into second voltage and charge to battery, or battery is electric
Pressure is converted to first voltage supplying power for outside；
The adjustment module is connect with the charge-discharge modules, for receiving the battery feedback voltage and electricity of charge-discharge modules offer
Pond feedback current, the adjustment module generate voltage control signal, the tune according to the battery feedback voltage and reference voltage
It saves module and current controling signal is generated according to the battery feedback current and reference current, the adjustment module is according to the voltage
Control signal and the current controling signal adjust the size of the first voltage and/or second voltage；
The compensating module is connect with the adjustment module, for compensating generation feedback compensation to the battery feedback voltage
Voltage, and the battery feedback current is compensated and generates feedback compensation electric current；
Control module is connect with the adjustment module and the compensating module, and the control module feeds back electricity according to the battery
Pressure adjusts the size of the reference voltage, and the control module adjusts the big of the reference current according to the battery feedback current
It is small.
2. a kind of charge-discharge control circuit according to claim 1, which is characterized in that it further include drive module, it is described
Drive module is connected between the adjustment module and the charge-discharge modules, for switching the charge and discharge of the charge-discharge modules
Process and the second voltage is adjusted according to the voltage control signal and current controling signal of the adjustment module.
3. a kind of charge-discharge control circuit according to claim 2, which is characterized in that the driving circuit includes switch
Q1, switch Q2, inductance L2, MOS driver M1, the switch Q1 are for switching the charge-discharge modules charge and discharge process；It is described
Switch Q2 is for adjusting the second voltage；Inductance L2 is used to store the first voltage of the adjustment module transmission；It is described
MOS driver M1 is used to control the switch state of the switch Q1 and the switch Q2；The switch Q1 and switch Q2 connects
It is connected on the MOS driver M1；The inductance L1 first end is connected to the switch Q2, second end ground connection.
4. a kind of charge-discharge control circuit according to claim 3, which is characterized in that the charge-discharge modules include straight
Flow input terminal IN, inductance L1, sampling resistor Rcl, capacitor C1, sampling resistor Rs and battery D1；The direct-flow input end IN is used for
The first voltage is provided；The inductance L1 is for storing the first voltage or the consumption second voltage；The sampling electricity
Resistance Rcl is for acquiring the sampling resistor Rcl both end voltage；The capacitor C1 is for storing described in the second voltage or consumption
Second voltage；The sampling resistor Rs is for acquiring the sampling resistor Rs both end voltage；The battery D1 is for storing second
Voltage or the release second voltage.
5. a kind of charge-discharge control circuit according to claim 4, which is characterized in that the direct-flow input end IN connection
To the switch Q1 first end；The inductance L1 first end connects the switch Q1 second end；The inductance L1 second end connection
To the first end of the sampling resistor Rcl；The second end of the sampling resistor Rcl is connected to the first end of the capacitor C1；Institute
State the second end ground connection of capacitor C1；The first end of the sampling resistor Rs is connected to the second end of the sampling resistor Rcl；It is described
Sampling resistor Rs second end is connected to the battery D1 anode；The cathode of the battery D1 is grounded.
6. a kind of charge-discharge control circuit according to claim 5, which is characterized in that the adjustment module includes: to adjust
Controller PWM processed, power amplifier P1, power amplifier P2, power amplifier P3, power amplifier P4, power amplifier P5,
Converter Z1, buffer F1, voltage-stablizer W1, clock generator S1 and constant-current source H1；The modulation controller PWM is for storing number
It is instructed according to transmission；The power amplifier P1 generates the battery feedback voltage for integrating；The power amplifier P2 is used
The battery feedback current is generated in integration；The power amplifier P3 is for integrating the battery feedback voltage and the reference
Voltage generates the voltage control signal；The power amplifier P4 is for integrating the battery feedback current and the reference electricity
Stream generates the current controling signal；The converter Z1 is for integrating the voltage control signal and current control letter
Number；The buffer F1 is used for buffering signals；The voltage-stablizer W1 is used for stabilizing circuit；The clock generator S1 and constant-current source
H1 is for generating clock signal；The power amplifier P5 is for integrating constant-current source and clock signal.
7. a kind of charge-discharge control circuit according to claim 6, which is characterized in that the power amplifier P1 input
End is connected to the both ends of the battery D1, and output is connected to the power amplifier P3 input terminal；The power amplifier P2 is defeated
Enter end and be connected to the sampling resistor Rs, output end is connected to the rate amplifier P4 input terminal；The power amplifier P4 is defeated
Outlet and the power amplifier P5 output end are connected to the converter Z1；The converter Z1 other end connects the buffering
Device F1；The buffer F1 output end is connected to the modulation controller PWM；Clock generator S1 and constant-current source H1 are connected to institute
Modulation controller PWM is stated, the voltage-stablizer W1 first end is connected to the modulation controller PWM, second end ground connection.
8. a kind of charge-discharge control circuit according to claim 7, which is characterized in that the compensating module includes: to mend
It repays circuit B1 and the one end compensation circuit B2, the compensation circuit B1 is connected to the adjustment module, the other end is connected to the control
Molding block；The one end the compensation circuit B2 is connected to the adjustment module, and the other end is connected to the control module.
9. a kind of charge-discharge control circuit according to claim 8, which is characterized in that the control module includes conversion
Device Z2, converter Z3, converter Z4 and controller MCU；The converter Z2 and converter Z3 is used to turn digital signal
It is changed to analog signal；The converter Z4 is for converting analog signals into digital signal；The controller MCU is for receiving number
Word signal and sending control instruction.
10. a kind of charge-discharge control circuit according to claim 9, which is characterized in that the one end the converter Z2 connects
The power amplifier P3 is met, the other end connects the controller MCU；The one end the converter Z3 connects the power amplifier
P4, the other end connect the controller MCU；The one end the converter Z3 connects the compensating module, and the other end connects the control
Device MCU processed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910769697.1A CN110391686A (en) | 2019-08-20 | 2019-08-20 | Charge-discharge control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910769697.1A CN110391686A (en) | 2019-08-20 | 2019-08-20 | Charge-discharge control circuit |
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| CN110391686A true CN110391686A (en) | 2019-10-29 |
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