CN106972566A - Battery charger and method for charging batteries - Google Patents
Battery charger and method for charging batteries Download PDFInfo
- Publication number
- CN106972566A CN106972566A CN201710233141.1A CN201710233141A CN106972566A CN 106972566 A CN106972566 A CN 106972566A CN 201710233141 A CN201710233141 A CN 201710233141A CN 106972566 A CN106972566 A CN 106972566A
- Authority
- CN
- China
- Prior art keywords
- battery
- voltage
- electricity
- charger
- dutycycle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000005611 electricity Effects 0.000 claims abstract description 158
- 238000012544 monitoring process Methods 0.000 claims abstract description 25
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 13
- 229910052744 lithium Inorganic materials 0.000 claims description 13
- 230000001360 synchronised effect Effects 0.000 claims description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 6
- 229910001416 lithium ion Inorganic materials 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 229910018095 Ni-MH Inorganic materials 0.000 description 2
- 229910018477 Ni—MH Inorganic materials 0.000 description 2
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009831 deintercalation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H02J7/0077—
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of battery charger and method for charging batteries.The battery charger includes the charger being electrically connected with the battery, the voltage and electric-quantity monitoring module being electrically connected with the battery, and the pwm signal generator being electrically connected with voltage and electric-quantity monitoring module and charger, when being charged to battery, voltage and electric-quantity monitoring module detect the voltage and electricity of battery, and transmit detecting result to pwm signal generator, pwm signal generator produces corresponding control signal according to the voltage and electricity of battery and exported to charger, the control signal adjustment output voltage and output current that charger is transmitted according to pwm signal generator charge to battery, charger is set to adjust output voltage and output current in real time according to the voltage and electricity size of battery, so as to reach to quickly charging battery and extend the purpose of battery.
Description
Technical field
The present invention relates to battery boosting technology field, more particularly to a kind of battery charger and method for charging batteries.
Background technology
In recent years, various portable electronic products turn into the hot topic of in the market, such as mobile phone, digital still camera, individual digital
Assistant (PDA), the product such as notebook computer towards wireless penetration, can portable direction develop, it is also past for each element of product
Gently, thin, short, small, high performance target is strided forward, therefore for the high secondary cell demand phase of small volume, lightweight, energy density
When urgent.
Small-sized secondary batteries include nickel-cadmium cell, Ni-MH battery and lithium battery, under the ecological requirements for preventing cadmium pollution, nickel
Cadmium cell is slowly substituted into trend.Though Ni-MH battery is without environmental issue, energy density is low, and hot properties is poor and a little
The shortcomings of memory effect, in electronics applications, gradually replaced by lithium ion battery, lithium ion battery has work
The features such as voltage height, big, lightweight energy density, long lifespan and environmental protection, it has also become the main product in secondary cell.
Conventional lithium battery generally replaces pure lithium as negative pole using lithium ion and deintercalation carbon material, and positive pole is closed using lithiumation
Thing, electrolyte is made up of mixed electrolytic solution.When being charged to battery, there is lithium ion generation on the positive pole of battery, generation
Lithium ion passes through electrolyte movement to negative pole, and is in layer structure as the carbon material of negative pole, with many micropores, reaches negative pole
Lithium ion be just embedded into the micropore of carbon-coating.
As shown in figure 1, be a kind of existing batter-charghing system, including：Charger 101, pass through with the charger 101
The lithium battery 102 that charging signals line 103 is connected, the transmission voltage of charging signals line 103 and electric current are into lithium battery, the charger
101 are typically charged by the way of constant voltage and constant current to lithium battery 102, it is impossible to current according to lithium battery 102
Electricity size is adjusted in real time to the output voltage and output current of charger 101, thus can not be when the electricity of lithium battery 102 is relatively low
Quickly it is charged, while when the electricity of lithium battery 102 is higher due to still being charged using same voltage and current
The waste of electric energy is caused, and the service life of lithium battery 102 can be reduced.
The content of the invention
It is an object of the invention to provide a kind of battery charger, make charger according to the voltage and electricity size of battery
Output voltage and output current are adjusted in real time, so as to reach the purpose for extending battery to Quick recharging machine for battery.
The present invention also aims to provide a kind of method for charging batteries, make charger big according to the voltage and electricity of battery
Small real-time adjustment output voltage and output current, so as to reach to quickly charging battery and extend the purpose of battery.
To achieve the above object, the present invention provides a kind of battery charger, for being charged to battery, the battery charging
Device includes：With the battery be electrically connected with charger, with the battery be electrically connected with voltage and electric-quantity monitoring module and
The pwm signal generator being electrically connected with the voltage and electric-quantity monitoring module and charger；
Voltage and the electric-quantity monitoring module is used for the voltage and electricity for detecting battery, and detecting result is transmitted to PWM
Signal generator；
The pwm signal generator is used to be exported to charging according to the corresponding control signal of the voltage and electricity of battery generation
Device；
The control signal that the charger is used to be transmitted according to pwm signal generator adjusts output voltage and output current pair
Battery is charged.
The pwm signal generator produces high level signal and exported to filling when the electricity of battery is less than the first electricity
Electrical equipment, the charger exports maximum charging voltage and maximum charging current according to the high level signal and battery is charged；
The pwm signal generator is equal to the maximum electric of battery in the voltage that the electricity of battery is more than the second electricity and battery
During pressure, produce frequency is certain, dutycycle is gradually reduced pulse signal and export to charger, the charger is according to the frequency
Necessarily, the output that the output voltage and current value for the output of pulse signal voltage value constant that dutycycle is gradually reduced are gradually reduced
Electric current；
The pwm signal generator is more than or equal to the first electricity in battery electric quantity, and battery electric quantity is less than or equal to the second electricity
When amount or cell voltage are less than the maximum voltage of battery, dutycycle is certain, frequency is gradually reduced pulse signal and output are produced
To charger, the charger is according to constant defeated of the output of pulse signal current value that the dutycycle is certain, frequency is gradually reduced
Go out the output voltage that electric current and magnitude of voltage are gradually reduced；
Wherein, first electricity is less than the second electricity, and second electricity is less than the maximum electricity of battery.
The pwm signal generator is more than or equal to the first electricity in battery electric quantity, and battery electric quantity is less than or equal to the second electricity
Amount or cell voltage be less than battery maximum voltage when, produce dutycycle remain the first dutycycle, frequency from first frequency by
Gradually it is changed to the pulse signal of second frequency and exports to charger, the charger remains the first duty according to the dutycycle
Gradually changed than, frequency from first frequency to the pulse signal of second frequency, export the first electric current, and output first voltage and by
Gradually it is changed to second voltage；
First dutycycle is less than 1；First electric current is less than the maximum charging current of charger；The second frequency
Less than first frequency, the second voltage is less than first voltage；
The pwm signal generator is equal to the maximum electric of battery in the voltage that the electricity of battery is more than the second electricity and battery
During pressure, generation frequency remains second frequency, dutycycle and gradually changed from the first dutycycle to the pulse signal of the second dutycycle
And export to charger, the charger remains second frequency, dutycycle according to the frequency and gradually changed from the first dutycycle
To the pulse signal of the second dutycycle, second voltage is exported, and export the first electric current and gradually change to the second electric current；
Second dutycycle is less than the first dutycycle, and second electric current is less than the first electric current.
The ratio of the maximum charging current of first electric current and charger is 1:2；Second electric current and charger
The ratio of maximum charging current is 1:10；
The first frequency is 20KHZ, and the second frequency is 10KHZ；
The ratio of the maximum charging voltage of the first voltage and charger is 1:1；The maximum of second voltage and charger
The ratio of charging voltage is 1:2；
The ratio of the maximum electricity of second electricity and battery is 9:10；The ratio of the maximum electricity of first electricity and battery
Example scope is 1:10-1:2.
The charger has the output voltage control module being electrically connected with pwm signal generator and output current control
Molding block；
The battery is lithium battery.
The present invention also provides a kind of method for charging batteries, using above-mentioned battery charger, comprises the following steps：
Step S1, voltage and electric-quantity monitoring module are detected to the voltage and electricity of battery, and detecting result is transmitted
To pwm signal generator；
Step S2, the pwm signal generator produce corresponding control signal according to the voltage and electricity of battery and exported
To charger；
The control signal that step S3, the charger are transmitted according to pwm signal generator adjusts output voltage and output electricity
Stream charges to battery.
The step S2 is specifically included：
Step S21, the first electricity and the second electricity for defining battery, second electricity are less than the maximum electricity of battery,
First electricity is less than the second electricity and more than 0；
Step S22, if battery electricity be less than the first electricity if enter step S23, if the electricity of battery be more than second electricity
The voltage of amount and battery enters step S25 when being equal to the maximum voltage of battery, otherwise into step S24；
Step S23, into the first charge mode, the pwm signal generator produces high level signal and inputted to charger,
The charger correspondence output maximum charging voltage and maximum charging current charge to battery, the voltage and electric-quantity monitoring
Module synchronization is detected to the voltage and electricity of battery, enters step S24 when the electricity of battery is more than or equal to the first electricity；
Step S24, into the second charge mode, the pwm signal generator produces that dutycycle is certain, frequency is gradually reduced
Pulse signal and export to charger, the charger is defeated according to the pulse signal that the dutycycle is certain, frequency is gradually reduced
Go out the output voltage that the constant output current of current value and magnitude of voltage be gradually reduced to charge to battery, the voltage and electricity
The synchronous voltage and electricity to battery of amount detecting module is detected, when the electricity of battery is more than the voltage of the second electricity and battery
Equal to battery maximum voltage when enter step S25；
Step S25, into the 3rd charge mode, the pwm signal generator produces that frequency is certain, dutycycle is gradually reduced
Pulse signal and export to charger, the charger is defeated according to the pulse signal that the frequency is certain, dutycycle is gradually reduced
Go out the output current that the output voltage and current value of voltage value constant be gradually reduced to charge to battery.
The step S24 is specially：The pwm signal generator produce dutycycle remain the first dutycycle, frequency from
First frequency is gradually changed to the pulse signal of second frequency and transmitted to charger, and the charger is kept according to the dutycycle
Gradually changed for the first dutycycle, frequency from first frequency to the pulse signal of second frequency, export the first electric current, and output the
One voltage is simultaneously gradually changed to second voltage, and the battery is charged；
First dutycycle is less than 1；First electric current is less than the maximum charging current of charger；The second frequency
Less than first frequency, the second voltage is less than first voltage；
The step S25 is specially：The pwm signal generator produces frequency and remains second frequency, dutycycle from the
One dutycycle is gradually changed to the pulse signal of the second dutycycle and transmitted to charger, and the charger is kept according to the frequency
Second frequency, dutycycle are gradually changed to the pulse signal of the second dutycycle from the first dutycycle, export second voltage, and output
First electric current is simultaneously gradually changed to the second electric current, and battery is charged；
Second dutycycle is less than the first dutycycle, and second electric current is less than the first electric current.
Beneficial effects of the present invention：The battery charger of the present invention, the battery charger includes electrically connecting with battery
The charger that connects, the voltage being electrically connected with the battery and electric-quantity monitoring module and with voltage and electric-quantity monitoring module and charger
The pwm signal generator being electrically connected with, when being charged to battery, the voltage of voltage and electric-quantity monitoring module detecting battery
And electricity, and detecting result is transmitted to pwm signal generator, pwm signal generator is produced according to the voltage and electricity of battery
Corresponding control signal is exported to charger, and the control signal that charger is transmitted according to pwm signal generator adjusts output voltage
And output current charges to battery, charger is set to adjust output voltage in real time and defeated according to the voltage and electricity size of battery
Go out electric current, so as to reach to quickly charging battery and extend the purpose of battery.The method for charging batteries of the present invention, energy
Charger is enough set to adjust output voltage and output current in real time according to the voltage and electricity size of battery, so as to reach fast to battery
Speed charging and the purpose of extension battery.
Brief description of the drawings
In order to be able to be further understood that the feature and technology contents of the present invention, refer to below in connection with the detailed of the present invention
Illustrate and accompanying drawing, however accompanying drawing only provide with reference to and explanation use, not for being any limitation as to the present invention.
In accompanying drawing,
Fig. 1 is the schematic diagram of existing batter-charghing system；
Fig. 2 is the flow chart of the method for charging batteries of the present invention；
Fig. 3 is the structural representation of the battery charger of the present invention.
Embodiment
Further to illustrate the technological means and its effect of the invention taken, below in conjunction with being preferable to carry out for the present invention
Example and its accompanying drawing are described in detail.
Referring to Fig. 3, the present invention provides a kind of battery charger, for being charged for battery 2, the battery charger
Including：With the battery 2 be electrically connected with charger 1, with the battery 2 be electrically connected with voltage and electric-quantity monitoring module 3 and
(PWM) signal generator 4 is modulated with the pulse wideband that the voltage and electric-quantity monitoring module 3 and charger 1 are electrically connected with；
Voltage and the electric-quantity monitoring module 3 is used to detecting the voltage and electricity of battery 2, and by detecting result transmit to
Pwm signal generator 4；
The pwm signal generator 4, which is used to producing corresponding control signal according to the voltage and electricity of battery 2, to be exported to filling
Electrical equipment 1；
The control signal that the charger 1 is used to be transmitted according to pwm signal generator 4 adjusts output voltage and output current
Battery 2 is charged.
Specifically, the charger 1 have with pwm signal generator 4 be electrically connected with output voltage control module 11 and
Output current control module 12.
Specifically, the battery 2 is lithium battery.
It should be noted that pwm signal generator 4 is according to the voltage of battery 2 and the size of electricity, generation pair in the present invention
The control signal answered, the frequency (Frequency) and dutycycle of the control signal that charger 1 is transmitted according to pwm signal generator 4
(Duty) concrete numerical value correspondence changes the output voltage and output current of its output, thus can by the voltage to battery 2 and
Electricity is detected, and the correspondence of pwm signal generator 4 is produced control signal and is exported to charger 1, charger 1 is according to battery 2
Voltage and electricity size adjust output voltage and output current in real time, so that reach makes to the quick charge of battery 2 and extension battery 2
With the purpose in life-span.
Specifically, the first electricity and the second electricity of battery 2 are defined, second electricity is less than the maximum electricity of battery 2
Amount, first electricity is less than the second electricity and more than 0；
When the electricity of battery 2 is less than the first electricity, now the electricity of battery 2 is smaller, it is necessary to carry out quick charge, passes through
The pwm signal generator 4 is set to produce high level signal and export to charger 1, the charger 1 is according to the high level signal
Output maximum charging voltage and maximum charging current are that battery 2 charges, and reach the purpose to the quick charge of battery 2；
When the voltage for being more than the second electricity and battery 2 in the electricity of battery 2 is equal to the maximum voltage of battery 2, now battery 2
Voltage can not increase again, and the electricity of battery 2 is not full of, by making the pwm signal generator 4 produce frequency one
Pulse signal that fixed, dutycycle is gradually reduced simultaneously is exported to charger 1, the charger 1 is according to the frequency is certain, dutycycle by
The output current that the output voltage and current value of decrescence small output of pulse signal voltage value constant are gradually reduced, utilizes small electricity
Flow and charged for battery 2, the service life of battery 2 can be extended；
It is more than or equal to the first electricity in the electricity of battery 2, and the electricity of battery 2 is less than or equal to the second electricity or cell voltage is small
When the maximum voltage of battery, by produce pwm signal generator 4 dutycycle is certain, frequency is gradually reduced pulse signal
And export to charger 1, the charger 1 is according to the output of pulse signal current value that the dutycycle is certain, frequency is gradually reduced
The output voltage that constant output current and magnitude of voltage is gradually reduced charges to battery 2.
Further, the pwm signal generator 4 is more than or equal to the first electricity in the electricity of battery 2, and the electricity of battery 2 is small
When the maximum voltage of battery is less than equal to the second electricity or the voltage of battery 2, produces dutycycle and remain the first dutycycle, frequency
Gradually change to the pulse signal of second frequency and export to charger 1 from first frequency, the charger 1 is according to the dutycycle
Remain the first dutycycle, frequency to gradually change to the pulse signal of second frequency from first frequency, export the first electric current, and it is defeated
Go out first voltage and gradually change to second voltage；
First dutycycle is less than 1；First electric current is less than the maximum charging current of charger 1；Second frequency
Rate is less than first frequency, and second voltage is less than first voltage；
The pwm signal generator 4 is equal to battery 2 most in the voltage that the electricity of battery 2 is more than the second electricity and battery 2
During big voltage, generation frequency remains second frequency, dutycycle and gradually changed from the first dutycycle to the pulse of the second dutycycle
Signal is simultaneously exported to charger 1, the charger 1 according to the frequency remain second frequency, dutycycle from the first dutycycle by
The pulse signal of the second dutycycle is gradually changed to, second voltage is exported, and export the first electric current and gradually change to the second electric current；
Second dutycycle is less than the first dutycycle, and second electric current is less than the first electric current.
Preferably, the ratio of the maximum charging current of first electric current and charger 1 is 1:2；Second electric current with
The ratio of the maximum charging current of charger 1 is 1:10；
The first frequency is 20KHZ, and the second frequency is 10KHZ；
The ratio of the maximum charging voltage of the first voltage and charger 1 is 1:1；Second voltage and charger 1 are most
The ratio of big charging voltage is 1:2；
Specifically, the ratio of the maximum electricity of second electricity and battery 2 is 9:10；First electricity and battery 2 are most
The proportion of big electricity is 1:10-1:2.
Referring to Fig. 2, the present invention also provides a kind of method for charging batteries of the above-mentioned battery charger of application, including it is as follows
Step：
Step S1, voltage and electric-quantity monitoring module 3 are detected to the voltage and electricity of battery 2, and detecting result is passed
Transport to pwm signal generator 4.
Step S2, the pwm signal generator 4 produce corresponding control signal and defeated according to the voltage and electricity of battery 2
Go out to charger 1.
The control signal that step S3, the charger 1 are transmitted according to pwm signal generator 4 adjusts output voltage and output
Current versus cell 2 is charged.
It should be noted that pwm signal generator 4 is according to the voltage of battery 2 and the size of electricity, generation pair in the present invention
The control signal answered, the frequency (Frequency) and dutycycle of the control signal that charger 1 is transmitted according to pwm signal generator 4
(Duty) concrete numerical value correspondence changes the output voltage and output current of its output, thus can by the voltage to battery 2 and
Electricity is detected, and the correspondence of pwm signal generator 4 is produced control signal and is exported to charger 1, charger 1 is according to battery 2
Voltage and electricity size adjust output voltage and output current in real time, so that reach makes to the quick charge of battery 2 and extension battery 2
With the purpose in life-span.
Specifically, the step S2 is specifically included：
Step S21, the first electricity and the second electricity for defining battery 2, second electricity are less than the maximum electricity of battery 2
Amount, first electricity is less than the second electricity and more than 0.
Specifically, the ratio of the maximum electricity of second electricity and battery 2 is 9:10；First electricity and battery 2 are most
The proportion of big electricity is 1:10-1:2.
Step S22, if battery 2 electricity be less than the first electricity if enter step S23, if the electricity of battery 2 be more than second
The voltage of electricity and battery 2 enters step S25 when being equal to the maximum voltage of battery 2, otherwise into step S24.
Step S23, into the first charge mode, the pwm signal generator 4 produces high level signal and inputted to charger
1, the correspondence of the charger 1 output maximum charging voltage and maximum charging current charge to battery 2, the voltage and electricity
The synchronous voltage and electricity to battery 2 of detecting module 3 is detected, and is entered when the electricity of battery 2 is more than or equal to the first electricity
Step S24.
It should be noted that above-mentioned first charge mode is the charge mode of a high-voltage large current, in this mode, fill
Electrical equipment 1 exports maximum charging voltage and maximum charging current to battery 2, it is therefore an objective to quickly it is entered when the electricity of battery 2 is relatively low
Row charging, to improve the charging rate of the whole charging process of battery 2.
Step S24, into the second charge mode, second charge mode is the charging module formula of a constant current, described
Pwm signal generator 4 produces the pulse signal that dutycycle is certain, frequency is gradually reduced and exported to charger 1, the charger
1 according to the constant output current of the output of pulse signal current value that the dutycycle is certain, frequency is gradually reduced and magnitude of voltage gradually
The output voltage of reduction charges to battery 2, the synchronous voltage and electricity to battery 2 of voltage and electric-quantity monitoring module 3
Detected, enter step when the electricity of battery 2 is equal to the maximum voltage of battery 2 more than the voltage of the second electricity and battery 2
S25。
Specifically, the step S24 is specially：The pwm signal generator 4 produces dutycycle and remains the first duty
Gradually change to the pulse signal of second frequency and transmit to charger 1, the basis of charger 1 from first frequency than, frequency
The dutycycle remains the first dutycycle, frequency and gradually changed from first frequency to the pulse signal of second frequency, output one with
Corresponding first electric current of first dutycycle, and export a first voltage corresponding with first frequency and gradually change to one and second
The corresponding second voltage of frequency, charges to the battery 2；
First dutycycle is less than 1；First electric current is less than the maximum charging current of charger 1；Second frequency
Rate is less than first frequency, and the second voltage is less than first voltage.
Specifically, the scope of first dutycycle is 0.4-0.6.
Preferably, first dutycycle is 0.5, accordingly, the maximum charging current of first electric current and charger 1
Ratio be 1:2.
Preferably, the first frequency is 20KHZ, accordingly, and the first voltage is the maximum charging voltage of charger 1.
Preferably, the second frequency is 10KHZ, accordingly, the second voltage and the maximum charging voltage of charger 1
Ratio be 1:2.
Step S25, into the 3rd charge mode, the pwm signal generator 4 produces that frequency is certain, dutycycle gradually subtracts
Small pulse signal is simultaneously exported to charger 1, and the charger 1 is believed according to the pulse that the frequency is certain, dutycycle is gradually reduced
The output current that number constant output voltage of output voltage values and current value are gradually reduced charges to battery 2.
It should be noted that above-mentioned 3rd charge mode is the charge mode of a constant voltage, reached in the voltage of battery 2
The maximum voltage of battery 2, and electricity still without full of when, using the fixed and less voltage of magnitude of voltage and current value it is smaller and by
Gradually reduction and current versus cell 2 carry out charging and battery 2 can be protected, battery life decline caused by preventing from overcharging.
Specifically, the step S25 is specially：The pwm signal generator 4 produces frequency and remains second frequency, accounts for
Empty ratio is gradually changed to the pulse signal of the second dutycycle and transmitted to charger 1 from the first dutycycle, the basis of charger 1
The frequency keeps second frequency, dutycycle to be gradually changed from the first dutycycle to the pulse signal of the second dutycycle, output second
Voltage, and export the first electric current and gradually change to second electric current corresponding with the second dutycycle, battery 2 is charged；
Second dutycycle is less than the first dutycycle, and second electric current is less than the first electric current.
Specifically, the scope of second dutycycle is 0.05-0.15.
Preferably, second dutycycle is 0.1, accordingly, the maximum charging current of second electric current and charger 1
Ratio be 1:10.
In summary, battery charger of the invention, including be electrically connected with the battery charger, electrically connect with battery
The voltage and electric-quantity monitoring module that connect and the pwm signal being electrically connected with voltage and electric-quantity monitoring module and charger are produced
Device, when being charged to battery, voltage and electric-quantity monitoring module detect the voltage and electricity of battery, and detecting result is transmitted
To pwm signal generator, pwm signal generator produces corresponding control signal according to the voltage and electricity of battery and exported to charging
Device, the control signal adjustment output voltage and output current that charger is transmitted according to pwm signal generator charges to battery,
Charger is set to adjust output voltage and output current in real time according to the voltage and electricity size of battery, so as to reach quick to battery
Charging and the purpose of extension battery.The method for charging batteries of the present invention, can make charger according to the voltage of battery
And electricity size adjusts output voltage and output current in real time, so as to reach to quickly charging battery and extension battery
Purpose.
It is described above, for the person of ordinary skill of the art, can be with technique according to the invention scheme and technology
Other various corresponding changes and deformation are made in design, and all these changes and deformation should all belong to appended right of the invention
It is required that protection domain.
Claims (8)
1. a kind of battery charger, for being charged to battery (2), it is characterised in that the battery charger includes：With institute
State battery (2) electric connection charger (1), with the battery (2) be electrically connected with voltage and electric-quantity monitoring module (3) and
The pwm signal generator (4) being electrically connected with the voltage and electric-quantity monitoring module (3) and charger (1)；
Voltage and the electric-quantity monitoring module (3) is used to detecting the voltage and electricity of battery (2), and by detecting result transmit to
Pwm signal generator (4)；
The pwm signal generator (4), which is used to producing corresponding control signal according to the voltage and electricity of battery (2), to be exported to filling
Electrical equipment (1)；
The control signal that the charger (1) is used to be transmitted according to pwm signal generator (4) adjusts output voltage and output current
Battery (2) is charged.
2. battery charger as claimed in claim 1, it is characterised in that
The pwm signal generator (4) produces high level signal and exported extremely when the electricity of battery (2) is less than the first electricity
Charger (1), the charger (1) exports maximum charging voltage and maximum charging current to battery according to the high level signal
(2) charge；
The pwm signal generator (4) is equal to its maximum in the voltage that the electricity of battery (2) is more than the second electricity and battery (2)
During voltage, produce frequency is certain, dutycycle is gradually reduced pulse signal and export to charger (1), charger (1) root
Gradually subtract according to the output voltage and current value for the output of pulse signal voltage value constant that the frequency is certain, dutycycle is gradually reduced
Small output current；
The pwm signal generator (4) is more than or equal to the first electricity in battery (2) electricity, and battery (2) electricity is less than or equal to the
When two electricity or battery (2) voltage are less than the maximum voltage of battery (2), the pulse that generation dutycycle is certain, frequency is gradually reduced
Signal is simultaneously exported to charger (1), and the charger (1) is defeated according to the pulse signal that the dutycycle is certain, frequency is gradually reduced
Go out the output voltage that the constant output current of current value and magnitude of voltage are gradually reduced；
Wherein, first electricity is less than the second electricity, and second electricity is less than the maximum electricity of battery (2).
3. battery charger as claimed in claim 2, it is characterised in that the pwm signal generator (4) is in battery (2) electricity
Amount is more than or equal to the first electricity, and battery (2) electricity is less than or equal to the second electricity or battery (2) voltage is less than battery (2) most
During big voltage, generation dutycycle remains the first dutycycle, frequency and gradually changed from first frequency to the pulse letter of second frequency
Number and export to charger (1), the charger (1) remains the first dutycycle, frequency from first frequency according to the dutycycle
Gradually change to the pulse signal of second frequency, export the first electric current, and export first voltage and gradually change to second voltage；
First dutycycle is less than 1；First electric current is less than the maximum charging current of charger (1)；The second frequency
Less than first frequency, the second voltage is less than first voltage；
The pwm signal generator (4) is equal to battery (2) in the voltage that the electricity of battery (2) is more than the second electricity and battery (2)
Maximum voltage when, produce frequency and remain second frequency, dutycycle and gradually changed from the first dutycycle to the second dutycycle
Pulse signal is simultaneously exported to charger (1), and the charger (1) remains second frequency, dutycycle from first according to the frequency
Dutycycle is gradually changed to the pulse signal of the second dutycycle, exports second voltage, and the first electric current of output and gradually change to
Second electric current；
Second dutycycle is less than the first dutycycle, and second electric current is less than the first electric current.
4. battery charger as claimed in claim 3, it is characterised in that the maximum of first electric current and charger (1)
The ratio of charging current is 1:2；The ratio of the maximum charging current of second electric current and charger (1) is 1:10；
The first frequency is 20KHZ, and the second frequency is 10KHZ；
The ratio of the maximum charging voltage of the first voltage and charger (1) is 1:1；Second voltage and charger (1) are most
The ratio of big charging voltage is 1:2；
The ratio of the maximum electricity of second electricity and battery (2) is 9:10；First electricity and the maximum electricity of battery (2)
Proportion is 1:10-1:2.
5. battery charger as claimed in claim 1, it is characterised in that the charger (1) has to be produced with pwm signal
Output voltage control module (11) and output current control module (12) that device (4) is electrically connected with；
The battery (2) is lithium battery.
6. a kind of method for charging batteries, using the battery charger as described in any one of claim 1 to 5, it is characterised in that
Comprise the following steps：
Step S1, voltage and electric-quantity monitoring module (3) are detected to the voltage and electricity of battery (2), and detecting result is passed
Transport to pwm signal generator (4)；
Step S2, the pwm signal generator (4) produce corresponding control signal and defeated according to the voltage and electricity of battery (2)
Go out to charger (1)；
The control signal that step S3, the charger (1) are transmitted according to pwm signal generator (4) adjusts output voltage and output
Current versus cell (2) is charged.
7. method for charging batteries as claimed in claim 6, it is characterised in that the step S2 is specifically included：
Step S21, the first electricity and the second electricity for defining battery (2), second electricity are less than the maximum electricity of battery (2)
Amount, first electricity is less than the second electricity and more than 0；
Step S22, if battery (2) electricity be less than the first electricity if enter step S23, if the electricity of battery (2) be more than second
The voltage of electricity and battery (2) enters step S25 when being equal to the maximum voltage of battery (2), otherwise into step S24；
Step S23, into the first charge mode, the pwm signal generator (4) produces high level signal and inputted to charger
(1), charger (1) the correspondence output maximum charging voltage and maximum charging current charge to battery (2), the voltage
And the synchronous voltage and electricity to battery (2) of electric-quantity monitoring module (3) is detected, when the electricity of battery (2) is more than or equal to the
Enter step S24 during one electricity；
Step S24, into the second charge mode, the pwm signal generator (4) produces that dutycycle is certain, frequency is gradually reduced
Pulse signal and export to charger (1), the charger (1) is according to the pulse that the dutycycle is certain, frequency is gradually reduced
The output voltage that the constant output current of signal output current value and magnitude of voltage are gradually reduced charges to battery (2), described
The synchronous voltage and electricity to battery (2) of voltage and electric-quantity monitoring module (3) is detected, when the electricity of battery (2) is more than the
The voltage of two electricity and battery (2) enters step S25 when being equal to the maximum voltage of battery (2)；
Step S25, into the 3rd charge mode, the pwm signal generator (4) produces that frequency is certain, dutycycle is gradually reduced
Pulse signal and export to charger (1), the charger (1) is according to the pulse that the frequency is certain, dutycycle is gradually reduced
The output current that the constant output voltage of signal output voltage value and current value are gradually reduced charges to battery (2).
8. method for charging batteries as claimed in claim 7, it is characterised in that
The step S24 is specially：The pwm signal generator (4) produces dutycycle and remains the first dutycycle, frequency from the
One frequency is gradually changed to the pulse signal of second frequency and transmitted to charger (1), and the charger (1) is according to the dutycycle
Remain the first dutycycle, frequency to gradually change to the pulse signal of second frequency from first frequency, export one first electric current, and
Output first voltage is simultaneously gradually changed to second voltage, and the battery (2) is charged；
First dutycycle is less than 1；First electric current is less than the maximum charging current of charger (1)；The second frequency
Less than first frequency, the second voltage is less than first voltage；
The step S25 is specially：The pwm signal generator (4) produces frequency and remains second frequency, dutycycle from first
Dutycycle is gradually changed to the pulse signal of the second dutycycle and transmitted to charger (1), and the charger (1) is according to the frequency
Keep second frequency, dutycycle to be gradually changed from the first dutycycle to the pulse signal of the second dutycycle, export second voltage, and
Export the first electric current and gradually change to the second electric current, battery (2) is charged；
Second dutycycle is less than the first dutycycle, and second electric current is less than the first electric current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710233141.1A CN106972566B (en) | 2017-04-11 | 2017-04-11 | Battery charger and method for charging batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710233141.1A CN106972566B (en) | 2017-04-11 | 2017-04-11 | Battery charger and method for charging batteries |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106972566A true CN106972566A (en) | 2017-07-21 |
| CN106972566B CN106972566B (en) | 2019-05-31 |
Family
ID=59335867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710233141.1A Active CN106972566B (en) | 2017-04-11 | 2017-04-11 | Battery charger and method for charging batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106972566B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825979A (en) * | 2017-10-30 | 2018-03-23 | 智车优行科技（上海）有限公司 | Vehicular charging methods, devices and systems |
| WO2019061351A1 (en) * | 2017-09-29 | 2019-04-04 | 深圳市大疆创新科技有限公司 | Charging control method, device, and system |
| WO2019080733A1 (en) * | 2017-10-24 | 2019-05-02 | 深圳阿凡达智控有限公司 | Charging protection method, apparatus, and smart device |
| CN109768587A (en) * | 2017-11-10 | 2019-05-17 | 马克西姆综合产品公司 | Battery charger and associated system and method |
| CN110971010A (en) * | 2019-12-16 | 2020-04-07 | 湖北德普电气股份有限公司 | Detachable wireless charging system and charging use method thereof |
| CN107925264B (en) * | 2016-02-05 | 2022-05-17 | 深圳市欢太科技有限公司 | Charging system and charging method for terminal and power adapter |
| CN115411813A (en) * | 2022-07-11 | 2022-11-29 | 爱微(江苏)电力电子有限公司 | Charging control method and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090295339A1 (en) * | 2008-06-03 | 2009-12-03 | Intersil Americas Inc. | Usb charger using sensor-less current limit |
| CN103219762A (en) * | 2013-04-01 | 2013-07-24 | 海能达通信股份有限公司 | Charging control circuit |
| CN104158233A (en) * | 2013-05-14 | 2014-11-19 | 产晶积体电路股份有限公司 | Determination method for charging ending point |
| CN104600796A (en) * | 2014-12-30 | 2015-05-06 | 惠州Tcl移动通信有限公司 | Quickly-charger mobile terminal, method and system |
| CN104935058A (en) * | 2015-07-16 | 2015-09-23 | 烟台东方威思顿电气股份有限公司 | Battery charging circuit used for centralized meter reading terminal products |
| CN105914853A (en) * | 2016-04-21 | 2016-08-31 | 朱春常 | Intelligent charger capable of automatically identifying battery and performing intelligent charging |
-
2017
- 2017-04-11 CN CN201710233141.1A patent/CN106972566B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090295339A1 (en) * | 2008-06-03 | 2009-12-03 | Intersil Americas Inc. | Usb charger using sensor-less current limit |
| CN103219762A (en) * | 2013-04-01 | 2013-07-24 | 海能达通信股份有限公司 | Charging control circuit |
| CN104158233A (en) * | 2013-05-14 | 2014-11-19 | 产晶积体电路股份有限公司 | Determination method for charging ending point |
| CN104600796A (en) * | 2014-12-30 | 2015-05-06 | 惠州Tcl移动通信有限公司 | Quickly-charger mobile terminal, method and system |
| CN104935058A (en) * | 2015-07-16 | 2015-09-23 | 烟台东方威思顿电气股份有限公司 | Battery charging circuit used for centralized meter reading terminal products |
| CN105914853A (en) * | 2016-04-21 | 2016-08-31 | 朱春常 | Intelligent charger capable of automatically identifying battery and performing intelligent charging |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107925264B (en) * | 2016-02-05 | 2022-05-17 | 深圳市欢太科技有限公司 | Charging system and charging method for terminal and power adapter |
| WO2019061351A1 (en) * | 2017-09-29 | 2019-04-04 | 深圳市大疆创新科技有限公司 | Charging control method, device, and system |
| WO2019080733A1 (en) * | 2017-10-24 | 2019-05-02 | 深圳阿凡达智控有限公司 | Charging protection method, apparatus, and smart device |
| CN107825979A (en) * | 2017-10-30 | 2018-03-23 | 智车优行科技（上海）有限公司 | Vehicular charging methods, devices and systems |
| CN109768587A (en) * | 2017-11-10 | 2019-05-17 | 马克西姆综合产品公司 | Battery charger and associated system and method |
| CN109768587B (en) * | 2017-11-10 | 2022-03-04 | 马克西姆综合产品公司 | Battery charger and related systems and methods |
| CN110971010A (en) * | 2019-12-16 | 2020-04-07 | 湖北德普电气股份有限公司 | Detachable wireless charging system and charging use method thereof |
| CN115411813A (en) * | 2022-07-11 | 2022-11-29 | 爱微(江苏)电力电子有限公司 | Charging control method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106972566B (en) | 2019-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106972566B (en) | Battery charger and method for charging batteries | |
| CN106300545B (en) | A kind of active equalization control device and control method for liquid metal cell | |
| CN102545291B (en) | Solar power storage system and solar power supply system | |
| CN101752624B (en) | Equalizing charge method and equalizing charge device for battery | |
| CN104935045A (en) | Battery pack equalization method for energy storage system adopting nickel-series storage batteries | |
| CN101355185A (en) | Method and apparatus for charging battery | |
| CN104467120B (en) | Charging equipment and its charging method, device, electronic equipment and charging system | |
| WO2014207994A1 (en) | Electricity storage system, electricity storage module, and control method | |
| CN104362693B (en) | Method and device for mutual charging and discharging between battery packs | |
| CN203086213U (en) | Rapid charger and mobile power supply with the charger | |
| CN103606998A (en) | Cell voltage equalizing control method using dynamic reference | |
| CN103326445B (en) | Bus is the lithium battery control system of regulative mode not | |
| CN103365391A (en) | Notebook battery management device and method thereof | |
| CN108321889A (en) | Super capacitance cell equilibrium high efficiency power system and its method of supplying power to | |
| CN103515665A (en) | Charging device and charging method | |
| CN201286026Y (en) | Apparatus for implementing battery charging | |
| CN206060307U (en) | A kind of accumulator cell charging and discharging bascule | |
| CN201860135U (en) | Battery charging device capable of equalizing charging | |
| CN102810698B (en) | Storage battery pack, and method and system for storage battery pack charge and discharge management | |
| CN103607002A (en) | Cell equalization charging method | |
| CN104009525B (en) | Intelligent communication type battery charging and discharging Optimal Control System | |
| CN201466157U (en) | Lithium ion battery group protection circuit capable of achieving series and parallel charging selection | |
| CN201044365Y (en) | Improved structure of equalization battery set | |
| CN203983422U (en) | The large electric current lithium ion battery group with self-protection function and extensibility | |
| CN203984062U (en) | Lithium battery frequency conversion quick-charging circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee after: TCL China Star Optoelectronics Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |