CN108011410A - A kind of boost battery charge system based on PWM feedback control - Google Patents
A kind of boost battery charge system based on PWM feedback control Download PDFInfo
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- CN108011410A CN108011410A CN201711108448.5A CN201711108448A CN108011410A CN 108011410 A CN108011410 A CN 108011410A CN 201711108448 A CN201711108448 A CN 201711108448A CN 108011410 A CN108011410 A CN 108011410A
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- pwm
- resistance
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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
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00711—Regulation of charging or discharging current or voltage with introduction of pulses during the charging process
-
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a kind of boost battery charge system based on PWM feedback control,Including singlechip controller,Alarm relay unit,Switching Power Supply,PWM driving units,Thyristor on-off control unit,Storage battery,Voltage and current collecting unit,ADC converting units,Communication unit,The system realizes boost battery charge by the feedback control of PWM ripples,The system constantly changes PWM ripple duty cycles by the real time monitoring to battery charging process,Carry out time variant voltage intermittent charge,It is to keep voltage to immobilize when just starting to charge up,Charged after charging a period of time using the constant voltage for reducing level-one,Reach optimal charge effect of the storage battery in charging current in the case where being gradually reduced,And system structure is simple,Condition monitoring can be carried out to storage battery in real time,Security reliability is high,Service life obtains certain guarantee.
Description
Technical field
The present invention relates to PWM charging techniques field, is specifically a kind of boost battery charge system based on PWM feedback control
System.
Background technology
Storage battery is a kind of important energy source device for being widely used in each industrial site, its capacity is big, cheap, but not
Rational battery management technique and charge and discharge mode cause the shortening of battery life and the reduction of service efficiency.Traditional charging
Pattern is mainly to use constant pressure, constant current isotype, but any charging system using the curtage that immobilizes, it is applicable in
Scope is all fairly limited, or even only adapts to an a kind of stage of storage battery.These rapid nitridings are to use mostly at the same time
Traditional control method and thought, from several indexs (the time length that charges, the charging of evaluation rapid nitriding performance
Efficiency, the size of temperature rise and the length in service life) from the point of view of, also there are some undesirable parts, it is impossible to meet storage battery to charging
The performance requirement that system proposes.
In order to improve the service efficiency of storage battery, rapid nitriding is developed rapidly in recent years, its design principle
It is the optimal charge curve for making charging curve approach storage battery as much as possible.The capacity of storage battery after being filled using high current perseverance
Very big supplement is obtained, the ability to accept of battery in itself there has been certain limitation, permanent using same voltage when charging again
Fill, charge efficiency can decline, and on the other hand can also influence service life and the security reliability of battery.
The content of the invention
It is an object of the invention to provide a kind of boost battery charge system based on PWM feedback control, with solution
State the problem of being proposed in background technology.
To achieve the above object, the present invention provides following technical solution：
It is a kind of based on PWM feedback control boost battery charge system, including singlechip controller, alarm relay unit,
Switching Power Supply, PWM driving units, thyristor on-off control unit, storage battery, voltage and current collecting unit, ADC converting units,
Communication unit, the singlechip controller connect alarm relay unit, and singlechip controller is used for the electricity that charges in charging process
The monitoring of stream and voltage, the Real-time Feedback and size and break-make for changing charging voltage, the alarm relay unit pass through switch
Power supply connects thyristor on-off control unit, and Switching Power Supply is used to provide electricity, and the thyristor on-off control unit connection stores
Battery and voltage and current collecting unit, thyristor on-off control unit are used for the break-make for receiving PWM ripple drive control thyristors, institute
State the collection that voltage and current collecting unit is used to storage battery is carried out in charging process in real-time voltage electric current, the voltage and current
Collecting unit connects singlechip controller by ADC converting units, for the voltage and current data of collection are single by ADC conversions
Member is sent into singlechip controller, and singlechip controller connection PWM driving units, the PWM driving units connection thyristor leads to
Disconnected control unit, the communication unit connect singlechip controller.
As the further scheme of the present invention：The singlechip controller uses 8 AVR microprocessor microcontrollers, and described 8
Position AVR microprocessor microcontrollers are provided with 3 passage PWM and 10,8 tunnels ADC is changed.
As the further scheme of the present invention：The PWM driving units are provided with PWM ripple drive control circuits, the PWM
Ripple drive control circuit includes power supply VCC interfaces, PWM ripples control interface, resistance R1, triode Q1, resistance R2, power field effect
Pipe Q2, inductance L1, zener diode D1, zener diode D2, polar capacitor C1, capacitance C2, the power supply VCC interfaces and power
Field-effect tube Q2 source electrodes connect, power field effect pipe Q2 grid connecting triode Q1 collectors, triode Q1 emitters ground connection, and three
For pole pipe Q1 base stages by resistance R1 connection PWM ripple control interfaces, mono- ends of resistance R2 are connected on power supply VCC interfaces, another to terminate at work(
Rate field-effect tube Q2 grids, power field effect pipe Q2 drain electrode connection inductance L1 one end, inductance L1 other ends connection zener diode
D2 cathodes, inductance L1 both ends shunt regulator diode D1, and zener diode D1 anode connect power field effect pipe Q2 drain electrodes, polarity
Capacitance C1 connects with zener diode D1, and polar capacitor C1 anode connect zener diode D1 cathodes, and polar capacitor C1 anode connect
Ground, capacitance C2 are connected in parallel on polar capacitor C1 both ends.
As the further scheme of the present invention：The PWM driving units are provided with PWM waveform controller, the PWM waveform
Controller uses quick PWM mode, for producing high-frequency PWM waveform.
As the further scheme of the present invention：The voltage and current collecting unit is provided with charge current sample circuit, institute
State charge current sample circuit include storage battery interface BAT, measuring resistance R3, resistance R4, capacitance C3, amplifirer A, resistance R5,
Resistance R6, power supply VCC interfaces, IP interfaces, the storage battery interface BAT connection measuring resistances R3, one end of resistance R4, resistance R4
The positive input terminal of other end connection amplifirer A, in-phase input end connection capacitance C3, capacitance the C3 ground connection of amplifirer A, measuring resistance
The R3 other ends connect resistance R5, resistance R5 connections amplifirer A inverting inputs and resistance R6, resistance R6 connection IP interfaces, power amplifier
Device A output terminals connect IP interfaces, and the common port one of amplifirer A connects power supply VCC interfaces, a ground connection.
As the further scheme of the present invention：The communication unit is provided with RS485 interfaces.
Compared with prior art, the beneficial effects of the invention are as follows：The system realizes electric power storage by the feedback control of PWM ripples
Pond quick charge, the system constantly change PWM ripple duty cycles by the real time monitoring to battery charging process, carry out time variant voltage
Intermittent charge, is to keep voltage to immobilize when just starting to charge up, using the constant of reduction level-one after a period of time of charging
Voltage charges, and reaches optimal charge effect of the storage battery in charging current in the case where being gradually reduced, and system structure
Simply, condition monitoring can be carried out to storage battery in real time, security reliability is high, and the service life obtains certain guarantee.
Brief description of the drawings
Fig. 1 is a kind of boost battery charge system block diagram based on PWM feedback control；
Fig. 2 is PWM ripple drive control circuit figures；
Fig. 3 is charge current sample circuit diagram.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
Please refer to Fig.1-3, a kind of boost battery charge system based on PWM feedback control, including singlechip controller
1st, alarm relay unit 2, Switching Power Supply 3, PWM driving units 4, thyristor on-off control unit 5, storage battery 6, voltage and current
Collecting unit 7, ADC converting units 8, communication unit 9, the singlechip controller 1 connect alarm relay unit 2, microcontroller
Controller 1 is used for the monitoring of charging current and voltage in charging process, Real-time Feedback and the size and break-make for changing charging voltage,
The alarm relay unit 2 connects thyristor on-off control unit 5 by Switching Power Supply 3, and Switching Power Supply 3 is used to provide electricity
Amount, the thyristor on-off control unit 5 connect storage battery 6 and voltage and current collecting unit 7, thyristor on-off control unit 5
For receiving the break-make of PWM ripple drive control thyristors, the voltage and current collecting unit 7 is used in charging process to electric power storage
Pond 6 carries out the collection of real-time voltage electric current, and the voltage and current collecting unit 7 connects microcontroller by ADC converting units 8 and controls
Device 1, for the voltage and current data of collection to be sent into singlechip controller 1 by ADC converting units 8, completes feedback control,
Singlechip controller 1 connects PWM driving units 4, and the PWM driving units 4 connect thyristor on-off control unit 5, microcontroller
Controller 1 constantly adjusts PWM waveform, and PWM waveform is passed to by the comparison of real-time voltage electric current and normal voltage electric current
Thyristor on-off control unit 5, the communication unit 9 connect singlechip controller 1.
The singlechip controller 1 uses 8 AVR microprocessor microcontrollers, and 8 AVR microprocessor microcontrollers are set
It is equipped with 3 passage PWM and 10,8 tunnels ADC is changed, can meets PWM under different occasions by exporting 4 kinds of operating modes of comparing unit
The generation of waveform, and can well in charging process to battery charging currentand voltage monitoring.
The PWM driving units 4 are provided with PWM ripple drive control circuits, and the PWM ripples drive control circuit includes power supply
VCC interfaces, PWM ripples control interface, resistance R1, triode Q1, resistance R2, power field effect pipe Q2, inductance L1, zener diode
D1, zener diode D2, polar capacitor C1, capacitance C2, the power supply VCC interfaces are connected with power field effect pipe Q2 source electrodes, work(
Rate field-effect tube Q2 grid connecting triode Q1 collectors, triode Q1 emitters ground connection, triode Q1 base stages pass through resistance R1
PWM ripple control interfaces are connected, mono- ends of resistance R2 are connected on power supply VCC interfaces, another to terminate at power field effect pipe Q2 grids, power
Field-effect tube Q2 drain electrode connection inductance L1 one end, inductance L1 other ends connection zener diode D2 cathodes, inductance L1 both ends are in parallel
Zener diode D1, and zener diode D1 anode meet power field effect pipe Q2 drain electrodes, polar capacitor C1 and zener diode D1
Series connection, polar capacitor C1 anode connect zener diode D1 cathodes, and polar capacitor C1 anode are grounded, and capacitance C2 is connected in parallel on polarity electricity
Hold C1 both ends；
The PWM ripple drive control circuit courses of work are：The low and high level of PWM ripples directly controls the break-make of triode Q1, works as PWM
When ripple is in high level, since the base voltage of triode is higher than emitter voltage, under power supply VCC effects, triode is in
ON operation state, causes the grounded-grid of power field effect pipe Q2, and less than source voltage, power field effect pipe Q2 is on
State, supply voltage are added to storage battery both ends, start to charge up；And when PWM ripples are in low level, due to the base stage of triode
Hold and be in cut-off state for low level, triode, cause the grid of power field effect pipe Q2 to be directly connected with power supply, power field effect
Should pipe Q2 be off, storage battery both ends charging voltage disappear, complete interruption charging；Pass through power field effect pipe Q2's
Turn-on and turn-off realize the interval break-make of voltage, are followed by inductance L1 so that charging current is in the state successively decreased step by step, in addition by
In the frequent break-make of power supply, in order to reduce interference, filter circuit and protection circuit are being accessed below.
The PWM driving units 4 are provided with PWM waveform controller, and the PWM waveform controller uses quick PWM mode,
For producing high-frequency PWM waveform, in such a mode, PWM waveform, which produces, uses unilateral slope working method, compared to other patterns
Working frequency doubles.
The voltage and current collecting unit 7 is provided with charge current sample circuit, and the charge current sample circuit includes
Storage battery interface BAT, measuring resistance R3, resistance R4, capacitance C3, amplifirer A, resistance R5, resistance R6, power supply VCC interfaces, IP connect
Mouthful, the storage battery interface BAT connection measuring resistances R3, one end of resistance R4, resistance R4 other ends connection amplifirer A's is just defeated
Enter end, in-phase input end connection capacitance C3, capacitance the C3 ground connection of amplifirer A, measuring resistance R3 other ends connection resistance R5, resistance
R5 connections amplifirer A inverting inputs and resistance R6, resistance R6 connection IP interfaces, amplifirer A output terminals connection IP interfaces, power amplifier
The common port one of device A connects power supply VCC interfaces, and a ground connection, by above-mentioned differential amplifier circuit, charging current is transmitted
Singlechip controller is returned, differential amplifier circuit has very strong common mode inhibition capacity and less output shift voltage, can accurately survey
The size of measuring resistance R1 both end voltage values is measured, so as to obtain the size of charging current.
The communication unit is provided with RS485 interfaces.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (6)
1. a kind of boost battery charge system based on PWM feedback control, it is characterised in that including singlechip controller（1）、
Alarm relay unit（2）, Switching Power Supply（3）, PWM driving units（4）, thyristor on-off control unit（5）, storage battery（6）、
Voltage and current collecting unit（7）, ADC converting units（8）, communication unit（9）, the singlechip controller（1）Connect relay
Alarm unit（2）, singlechip controller（1）For the monitoring of charging current in charging process and voltage, Real-time Feedback simultaneously changes
The size and break-make of charging voltage, the alarm relay unit（2）Pass through Switching Power Supply（3）It is single to connect the control of thyristor break-make
Member（5）, Switching Power Supply（3）For providing electricity, the thyristor on-off control unit（5）Connect storage battery（6）With voltage electricity
Flow collecting unit（7）, thyristor on-off control unit（5）For receiving the break-make of PWM ripple drive control thyristors, the voltage
Current acquisition unit（7）For in charging process to storage battery（6）Carry out the collection of real-time voltage electric current, the voltage and current
Collecting unit（7）Pass through ADC converting units（8）Connect singlechip controller（1）, for the voltage and current data of collection to be passed through
ADC converting units（8）It is sent into singlechip controller（1）In, singlechip controller（1）Connect PWM driving units（4）, the PWM
Driving unit（4）Connect thyristor on-off control unit（5）, the communication unit（9）Connect singlechip controller（1）.
A kind of 2. boost battery charge system based on PWM feedback control according to claim 1, it is characterised in that
The singlechip controller（1）Using 8 AVR microprocessor microcontrollers, it is logical that 8 AVR microprocessor microcontrollers are provided with 3
Road PWM and 10,8 tunnels ADC are changed.
A kind of 3. boost battery charge system based on PWM feedback control according to claim 1, it is characterised in that
The PWM driving units（4）PWM ripple drive control circuits are provided with, the PWM ripples drive control circuit connects including power supply VCC
It is mouth, PWM ripples control interface, resistance R1, triode Q1, resistance R2, power field effect pipe Q2, inductance L1, zener diode D1, steady
Diode D2, polar capacitor C1, capacitance C2 are pressed, the power supply VCC interfaces are connected with power field effect pipe Q2 source electrodes, power field effect
Should pipe Q2 grid connecting triode Q1 collectors, triode Q1 emitters ground connection, triode Q1 base stages pass through resistance R1 connections PWM
Ripple control interface, mono- ends of resistance R2 are connected on power supply VCC interfaces, another to terminate at power field effect pipe Q2 grids, power field effect
Pipe Q2 drain electrode connection inductance L1 one end, inductance L1 other ends connection zener diode D2 cathodes, inductance L1 both ends parallel voltage-stabilizing two
Pole pipe D1, and zener diode D1 anode connect power field effect pipe Q2 drain electrodes, polar capacitor C1 connects with zener diode D1, pole
Property capacitance C1 anode connect zener diode D1 cathodes, and polar capacitor C1 anode are grounded, and capacitance C2 is connected in parallel on polar capacitor C1 two
End.
A kind of 4. boost battery charge system based on PWM feedback control according to claim 1, it is characterised in that
The PWM driving units（4）PWM waveform controller is provided with, the PWM waveform controller uses quick PWM mode, for producing
Raw high-frequency PWM waveform.
A kind of 5. boost battery charge system based on PWM feedback control according to claim 1, it is characterised in that
The voltage and current collecting unit（7）Charge current sample circuit is provided with, the charge current sample circuit includes storage battery
Interface BAT, measuring resistance R3, resistance R4, capacitance C3, amplifirer A, resistance R5, resistance R6, power supply VCC interfaces, IP interfaces, institute
Storage battery interface BAT connection measuring resistances R3, one end of resistance R4 are stated, the resistance R4 other ends connect the positive input terminal of amplifirer A,
In-phase input end connection capacitance C3, capacitance the C3 ground connection of amplifirer A, measuring resistance R3 other ends connection resistance R5, resistance R5 companies
Meet amplifirer A inverting inputs and resistance R6, resistance R6 connection IP interfaces, amplifirer A output terminals connection IP interfaces, amplifirer A
Common port one connect power supply VCC interfaces, a ground connection.
A kind of 6. boost battery charge system based on PWM feedback control according to claim 1, it is characterised in that
The communication unit is provided with RS485 interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711108448.5A CN108011410A (en) | 2017-11-11 | 2017-11-11 | A kind of boost battery charge system based on PWM feedback control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711108448.5A CN108011410A (en) | 2017-11-11 | 2017-11-11 | A kind of boost battery charge system based on PWM feedback control |
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| Publication Number | Publication Date |
|---|---|
| CN108011410A true CN108011410A (en) | 2018-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711108448.5A Withdrawn CN108011410A (en) | 2017-11-11 | 2017-11-11 | A kind of boost battery charge system based on PWM feedback control |
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| CN (1) | CN108011410A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109831006A (en) * | 2019-03-04 | 2019-05-31 | 四川阿泰因机器人智能装备有限公司 | A kind of self-regulation charging control circuit |
-
2017
- 2017-11-11 CN CN201711108448.5A patent/CN108011410A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109831006A (en) * | 2019-03-04 | 2019-05-31 | 四川阿泰因机器人智能装备有限公司 | A kind of self-regulation charging control circuit |
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Application publication date: 20180508 |
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