CN108390432A - A kind of charging circuit and electronic cigarette - Google Patents
A kind of charging circuit and electronic cigarette Download PDFInfo
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- CN108390432A CN108390432A CN201810220425.1A CN201810220425A CN108390432A CN 108390432 A CN108390432 A CN 108390432A CN 201810220425 A CN201810220425 A CN 201810220425A CN 108390432 A CN108390432 A CN 108390432A
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- 238000007600 charging Methods 0.000 title claims abstract description 410
- 239000003571 electronic cigarette Substances 0.000 title claims abstract description 33
- 238000012544 monitoring process Methods 0.000 claims abstract description 90
- 238000001514 detection method Methods 0.000 claims abstract description 41
- 238000000889 atomisation Methods 0.000 claims description 24
- 230000005611 electricity Effects 0.000 claims description 24
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 230000000994 depressogenic effect Effects 0.000 claims 1
- 238000007689 inspection Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/46—Accumulators structurally combined with charging apparatus
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- 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
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- 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)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The present invention provides a kind of charging circuit, including the first charging module, the second charging module and monitoring modular.First charging module, the second charging module are respectively connected with governor circuit, external power supply and battery.The monitoring side of monitoring modular is connected with the power input of the first charging module, the output end of monitoring modular exports monitoring voltage to the power supply monitoring input terminal of governor circuit, so that governor circuit, when signal and monitoring voltage are not less than stable threshold voltage in the charging detection output output charging of the first charging module, the Enable Pin for enabling the second charging module charges to battery.The present invention also provides a kind of electronic cigarettes.The charging circuit and electronic cigarette of the present invention, by the charge control of connected governor circuit, the intelligent charge to battery, and the inductance that charging circuit does not use occupied space larger are realized, dimensional footprint is small, at low cost, and electronic cigarette has the characteristics that small and exquisite, light.
Description
Technical field
The present invention relates to electronic device field, more particularly to a kind of charging circuit and electronic cigarette.
Background technology
Existing electronic cigarette in order to give user more to experience, in addition to realization suction function other than, be also attached to many functions, than
If multimedia browses, touch screen operation, GPS (Global Positioning System, global positioning system) navigation, the sun
Functions, the purposes such as energy charging are the electronics smoke products that oneself is preferably promoted by each producer.Wherein, it is used in order to facilitate client,
Existing electronic cigarette has quick-charge function, the electronic cigarette being discharged can be rapidly filled with.
However, the technical solution of the quick-charge function makes charging current reach using power management IC and inductor combination
2A or 3A or so, because electric current is larger, inductance is also required to circulation high current, it requires that inductor size is larger, general to require
Long 7mm* wide 7mm* high 3mm.Power management IC and inductance dimensional footprint are also larger, charge especially for battery in parallel
Electronic cigarette space waste it is larger, and cost is higher.And existing common charging IC maximums can only carry out 1A chargings, circuit letter
It is single, it is cheap, but charging current is too small.
Invention content
A kind of charging circuit of present invention offer and electronic cigarette, can solve the electronic cigarette space hold face of batteries in parallel connection charging
Product problem big, of high cost.
The technical solution is as follows：
The invention discloses a kind of charging circuits, including the first charging module, the second charging module and monitoring modular.It is described
First charging module includes power input, charging output end and charging detection output, the power supply of first charging module
Input terminal is connected with external power supply, and the charging output end of first charging module is connected with battery, first charging module
Charging detection output signal or do not charge or have been filled with signal to governor circuit according in charged state output charging
Charge detection input.Second charging module includes power input, Enable Pin and charging output end, second charging
The power input of module is connected with the external power supply, the Enable Pin of second charging module and governor circuit it is enabled defeated
Outlet is connected, and the charging output end of second charging module is connected with the battery.The monitoring modular include monitoring side and
Output end, the monitoring side of the monitoring modular are connected with the power input of first charging module, the monitoring modular
Output end exports monitoring voltage to the power supply monitoring input terminal of the governor circuit, so that the governor circuit is filled described first
When signal and the monitoring voltage are not less than stable threshold voltage in the charging detection output output charging of electric module, institute is enabled
The Enable Pin of the second charging module is stated, to which control is so that second charging module charges to the battery.
In a wherein embodiment, the governor circuit is defeated in the charging detection output of first charging module
When going out not charge or have been filled with signal or the monitoring voltage less than the stable threshold voltage, stops enabled described second and fill
The Enable Pin of electric module stops charging to the battery to control second charging module.
In a wherein embodiment, first charging module includes the first charging chip, first resistor, the second electricity
Resistance and the first capacitance.First charging chip includes power input foot, charging output pin, charging detection output pin and charging electricity
Stream programming foot, the power input foot of first charging chip are the power input of first charging module, described first
The charging output pin of charging chip is the charging output end of first charging module, the charging detection of first charging chip
Output pin is the charging detection output of first charging module.The first end of the first resistor and the first charging core
The charging current programming foot of piece is connected, the second end ground connection of the first resistor.The first end of the second resistance and described the
The power input foot of one charging chip is connected, and the second end of the second resistance and the charging detection of first charging chip are defeated
Go out foot to be connected.The first end of first capacitance is connected with the power input foot of first charging chip, first capacitance
Second end ground connection.
In a wherein embodiment, first charging chip includes enabled foot, and first charging chip makes
Energy foot is connected with the power input foot of first charging chip.
In a wherein embodiment, second charging module includes the second charging chip, 3rd resistor and second
Capacitance.Second charging chip includes power input foot, charging output pin, enabled foot and charging current programming foot, and described the
The power input foot of two charging chips is the power input of second charging module, and the charging of second charging chip is defeated
Go out the charging output end that foot is second charging module, the enabled foot of second charging chip is second charging module
Enable Pin.The first end of the 3rd resistor is connected with the charging current of second charging chip programming foot, the third
The second end of resistance is grounded.The first end of second capacitance is connected with the power input foot of second charging chip, described
The second end of second capacitance is grounded.
In a wherein embodiment, the monitoring modular includes the 4th resistance and the 5th resistance, the 4th resistance
First end be the monitoring modular monitoring side, the second end of the 4th resistance is the output end of the monitoring modular, institute
The first end for stating the 5th resistance is connected with the second end of the 4th resistance, the second end ground connection of the 5th resistance.
In a wherein embodiment, the charging circuit includes third capacitance and the 4th capacitance, the third capacitance
First end be connected with the external power supply, the second end of third capacitance ground connection, the first end of the 4th capacitance and institute
It states battery to be connected, the second end ground connection of the 4th capacitance.
The present invention also provides a kind of electronic cigarette, electronic cigarette includes above-mentioned charging circuit.
In a wherein embodiment, the electronic cigarette includes governor circuit and atomization circuit, the governor circuit
Atomization control output end is connected with the atomization control signal of the atomization circuit, and the governor circuit is for being responsible for described in control
Atomization circuit working condition；The charging circuit is connect with the governor circuit, and the charging circuit is supplied to the governor circuit
Electricity.
In a wherein embodiment, the electronic cigarette includes battery, the battery respectively with the charging circuit, institute
It is connected to state governor circuit, the atomization circuit, the charging circuit carries out charging current management to the battery, and the battery is
The governor circuit and the atomization circuit provide electric energy.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：
A kind of charging circuit of present invention offer and electronic cigarette, pass through the charge control of connected governor circuit, it is therefore prevented that
The overcharge generated after leaking electricity and being full of when battery does not charge, also protects external power supply, is realized to electricity
The intelligent charge in pond, and the inductance that charging circuit does not use occupied space larger, dimensional footprint is small, at low cost, electronics
Smoking set has the characteristics that small and exquisite, light.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, and in order to allow the above and other objects, features and advantages of the present invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and coordinate attached drawing, detailed description are as follows.
Description of the drawings
Fig. 1 is the structural schematic diagram of the charging circuit of first embodiment of the invention；
Fig. 2 is the circuit connection diagram of the charging circuit of second embodiment of the invention；
Fig. 3 is the structural schematic diagram of the electronic cigarette of third embodiment of the invention.
Specific implementation mode
It is of the invention to reach the technological means and effect that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to propose according to the present invention charging circuit and electronic cigarette its specific implementation mode, structure, feature and
Effect is described in detail as after.
For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to the preferable reality of schema
Applying during example is described in detail clearly to be presented.By the explanation of specific implementation mode, when predetermined mesh can be reached to the present invention
The technological means taken and effect be able to more deeply and it is specific understand, however shown attached drawing is only to provide with reference to and says
It is bright to be used, it is not intended to limit the present invention.
First embodiment
Fig. 1 is the structural schematic diagram for the charging circuit 100 that first embodiment of the invention provides.As shown in Figure 1, charging circuit
100 include the first charging module 110, the second charging module 120 and monitoring modular 130.First charging module 110 includes that power supply is defeated
Enter end, charging output end and charging detection output, the power input of the first charging module 110 with external power supply 200 to be connected,
The charging output end of first charging module 110 is connected with battery 300, the charging detection output of the first charging module 110 and master
The charging detection input for controlling circuit 400 is connected.Second charging module 120 includes power input, Enable Pin and charging output
End, the power input of the second charging module 120 are connected with external power supply 200, the Enable Pin of the second charging module 120 and master control
The enabled output end of circuit 400 is connected, and the charging output end of the second charging module 120 is connected with battery 300.Monitoring modular 130
Including monitoring side and output end, the monitoring side of monitoring modular 130 is connected with the power input of the first charging module 110, monitoring
The output end of module 130 exports monitoring voltage to the power supply monitoring input terminal of governor circuit 400, so that governor circuit 400 is the
When signal and monitoring voltage are not less than stable threshold voltage in the charging detection output output charging of one charging module 110, make
The Enable Pin of the second charging module 120 of energy, to which the second charging module 120 of control charges to battery 300.
In a wherein embodiment, governor circuit 400 is exported in the charging detection output of the first charging module 110
When not charging or have been filled with signal or monitoring voltage less than stable threshold voltage, stop enabling making for the second charging module 120
Energy end, to which the second charging module 120 of control stops charging to battery 300.
Specifically, the first charging module 110 can the first charging module 110 charging detection output according to charging shape
State exports signal in charging or does not charge or have been filled with signal to the charging detection input of governor circuit 400, then master control is electric
Road 400 can receive the charging status information of the first charging module 110, and confirm the charged state of charging circuit 100.It is charging
In the process, governor circuit 400 obtains charged state from the charging detection output of the first charging module 110, and judged with this be
The second charging module 120 of no further driving carries out quick charge, it is therefore prevented that the generation when battery 300 does not charge is leaked electricity and filled
Overcharge after full.Meanwhile the present embodiment can judge external power supply 200 to battery by the output end of monitoring modular 130
The input current ability of 300 chargings, and then the second charging module 120 can be driven to carry out quick charge, or stop driving second
Charging module 120 protects external power supply 200, that is to say, that governor circuit 400 is sentenced from the output end of monitoring modular 130
The input current ability that disconnected external power supply 200 charges to battery 300, and judge whether with this further to drive the second charging module
120 carry out quick charge.The second charging module 120 is then driven to carry out quick charge, it is necessary to while from the first charging module 110
Charging detection output and the output end of monitoring modular 130 obtain corresponding signal, such as the charging of the first charging module 110
It is the corresponding signal in charging that detection output, which obtains charged state, and the monitoring of the output end output of monitoring modular 130 simultaneously
Voltage is not less than stable threshold voltage, could further drive the second charging module 120 to carry out quick charge, it is therefore prevented that in battery
300 generation electric leakages when not charging and the overcharge after being full of, also protect external power supply 200, realize intelligence
Charging.
Moreover, when the charging detection output output charged state of the first charging module 110 is the corresponding signal in charging
Such as when low level signal, then governor circuit 400 can further drive the second charging module to realize quick charge.At this point,
The monitoring voltage that governor circuit 400 can be exported according to the output end of monitoring modular 130 determines whether to export enabled control signal
To the Enable Pin of the second charging module 120, to which whether the second charging module of control 120 charges to battery 300.If for example, steady
Determine threshold voltage and is set as voltage 1.2V, and the monitoring voltage of the output end of monitoring modular 130 output is voltage 1.4V, then monitors
Voltage 1.4V be not less than stable threshold voltage 1.2V, then governor circuit 400 can by the enabled output end of governor circuit 400,
Enabled control signal is exported to the second connected charging module 120, driving the second charging module 120 output charging current is for example
1A, and the charging output end of the first charging module 110 exports charging current such as 1A, then battery 300 can carry out increasing to 2A
The charging of electric current carries out quick charge with this to battery 300.If monitoring voltage is voltage 1V, monitoring voltage 1V is less than stabilization
Threshold voltage 1.2V then shows the input current scarce capacity that external power supply 200 charges to battery 300, and circuit cannot be into as a result,
One step drives the second charging module 120 to carry out quick charge, then governor circuit 400 can stop enabling output end output by it
The enabled signal that controls is to the Enable Pin of the second charging module 120, to which the second charging module 120 stops charging to battery 300, with
This protects external power supply 200.
When the charging detection output output charged state of the first charging module 110 is the corresponding letter for not charging or having been filled with
When number such as high level signal, then circuit cannot further drive the second charging module 120 to carry out quick charge, no matter stablize threshold
How is the size of threshold voltage and monitoring voltage, and governor circuit 400 all stops making by the enabled output end output of governor circuit 400
Signal can be controlled, then the second charging module 120 stops charging to battery 300, it is therefore prevented that the generation leakage when battery 300 does not charge
Electricity and the overcharge after being full of.
The charging circuit 100 of the present embodiment passes through the charge control of connected governor circuit 400, it is therefore prevented that in battery 300
The overcharge generated after leaking electricity and being full of when not charging, also protects external power supply 200, is realized to battery
300 intelligent charge, and charging circuit 100, without the inductance for using occupied space larger, dimensional footprint is small, at low cost,
Electronic cigarette has the characteristics that small and exquisite, light.
Second embodiment
Fig. 2 is the circuit connection diagram of the charging circuit 100 of second embodiment of the invention.As shown in Fig. 2, the present embodiment fills
Circuit 100 and first embodiment are essentially identical, the difference is that：First charging module 110 includes the first charging chip
U1, first resistor R1, second resistance R2 and the first capacitance C1.First charging chip U1 includes power input foot 111, charging output
Foot 112, charging detection output pin 113 and charging current program foot 114, and the power input foot 111 of the first charging chip U1 is the
The charging output pin 112 of the power input of one charging module 110, the first charging chip U1 is filling for the first charging module 110
Electricity output end, the charging detection output pin 113 of the first charging chip U1 are the charging detection output of the first charging module 110.
The first end of first resistor R1 is connected with the charging current of the first charging chip U1 programming foot 114, the second end of first resistor R1
Ground connection, then first resistor R1 can play the role of adjust charging current, such as first resistor R1 be 1.1K ohm when, first fills
It is 1A that the charging output end of electrical chip U1, which can correspond to output charging current,.The first end of second resistance R2 and the first charging chip
The power input foot 111 of U1 is connected, and the second end of second resistance R2 and the charging of the first charging chip U1 detect 113 phase of output pin
Even, then second resistance R2 can be used as pull-up resistor, then according to charged state, output is detected in the charging of the first charging chip U1
Foot 113 can export relevant voltage.Specifically, governor circuit 400 can be defeated by being detected in the charging of the first charging chip U1
Go out foot 113 to be detected charged state, obtain charged state, such as the charging of the first charging chip U1 detects output pin 113
When exporting low level, show that charged state is in charging；The charging detection output pin 113 of first charging chip U1 exports high level
When, show that charged state is not charge or be full of.The power input foot of the first end of first capacitance C1 and the first charging chip U1
111 are connected, and the second end ground connection of the first capacitance C1, then the first capacitance C1 can be to the power input foot of the first charging chip U1
111 reception signal plays filter action, such as filters the current spike of 200 signal of external power supply.
Second charging module 120 may include the second charging chip U2,3rd resistor R3 and the second capacitance C2.Second charging
Chip U2 includes power input foot 121, charging output pin 122, enabled foot 123 and charging current programming foot 124, the second charging core
The power input foot 121 of piece U2 is the power input of the second charging module 120, the charging output pin of the second charging chip U2
122 be the charging output end of the second charging module 120, and the enabled foot 123 of the second charging chip U2 is the second charging module 120
Enable Pin.The first end of 3rd resistor R3 is connected with the charging current of the second charging chip U2 programming foot 124,3rd resistor R3's
Second end be grounded, then 3rd resistor R3 can play the role of adjust charging current, such as 3rd resistor R3 be 1.1K ohm when,
It is 1A that the charging output end of second charging chip U2, which can correspond to output charging current,.The first end of second capacitance C2 is filled with second
The power input foot 121 of electrical chip U2 is connected, the second end ground connection of the second capacitance C2, then the second capacitance C2 can charge to second
The reception signal of the power input foot 121 of chip U2 plays filter action, such as filters the current spike of external power supply signal.
Monitoring modular 130 can be, but not limited to include the 4th resistance R4 and the 5th resistance R5, the first end of the 4th resistance R4
It is the monitoring side of monitoring modular 130, the second end of the 4th resistance R4 is the output end of monitoring modular 130, the of the 5th resistance R5
One end is connected with the second end of the 4th resistance R4, the second end of the 5th resistance R5 ground connection, and the output end of monitoring modular 130 with it is outer
Portion's power supply 200 be connected, then monitoring modular 130 output end output monitoring voltage be outer power voltage the 4th resistance R4,
Voltage after 5th resistance R5 partial pressures.The monitoring voltage is input to the power supply monitoring input terminal of governor circuit 400, so that master control is electric
Road 400 determines whether to export enabled control signal to the Enable Pin of the second charging module 120 according to monitoring voltage, to control the
Whether two charging modules 120 charge to battery 300.
In a wherein embodiment, the first charging chip U1 may include enabled foot 115, the first charging chip U1's
Enabled foot 115 can with but be not limited to be connected with the power input foot 111 of the first charging chip U1, make the first charging chip U1's
When power input foot 111 receives outer power voltage, the enabled foot 115 of the first charging chip U1 is equally received with external power supply
The enable signal that voltage is formed, then directly drive the first charging chip U1 work, and the charging output end of the first charging chip U1 is defeated
Go out charging current；It can also be connected with governor circuit 400, exporting enable signal by governor circuit 400 drives the first charging chip
U1 work etc..
In a wherein embodiment, charging circuit 100 includes third capacitance C3 and the 4th capacitance C4, third capacitance C3
First end be connected with external power supply 200, the second end of third capacitance C3 ground connection, third capacitance C3 can believe external power supply 200
Number play filter action；The first end of 4th capacitance C4 is connected with battery 300, the second end ground connection of the 4th capacitance C4, the 4th electricity
200 signal of external power supply can be played the role of to filter energy storage by holding C4.
In a wherein embodiment, the first charging chip U1 can be identical with the model of the second charging chip U2, type
Number can with but be not limited to AP5056.The power input foot 111 of first charging chip U1 is VCC pin, and charge output pin 112
For BAT pins, charging detection output pin 113 is CHRE pins, and it is PROG pins that charging current, which programs foot 114,.Second charging core
The power input foot 121 of piece U2 is VCC pin, and charging output pin 122 is BAT pins, and it is CE pins, charging electricity to enable foot 123
Stream programming foot 124 is PROG pins.
Specifically, as shown in figure 3, when external power supply 200 accesses charging circuit 100, the power supply of the first charging chip U1
Input pin 111 can receive outer power voltage such as 5V, and the first charging chip U1 is driven by outer power voltage, the first charging
The charging output pin 112 of chip U1 exports charging current, charges to battery 300.
When the first charging chip U1 charging detection output output charged state be charge in corresponding signal it is for example low
When level signal, then governor circuit 400 can further drive the second charging chip U2 to realize quick charge.At this point, master control
The monitoring voltage that circuit 400 can be exported according to the output end of monitoring modular 130 determines whether to export enabled control signal to the
The Enable Pin of two charging modules 120, to which whether the second charging module of control 120 charges to battery 300.If for example, stablizing threshold
Threshold voltage is set as voltage 1.2V, and the monitoring voltage of the output end of monitoring modular 130 output, i.e. the 4th resistance R4, the 5th electricity
It is voltage 1.4V to hinder the monitoring voltage after R5 partial pressures, then monitoring voltage 1.4V is not less than stable threshold voltage 1.2V, then master control electricity
Road 400 can enable the enabled control signal of output end output to the enabled foot 123 of the second charging chip U2, driving second by it
Charging chip U2 exports charging current such as 1A, and the charging output end of the first charging chip U1 exports charging current such as 1A,
Then battery 300 can carry out increasing to the charging of 2A electric currents, and quick charge is carried out to battery 300 with this.If from the 4th resistance R4,
Monitoring voltage after 5th resistance R5 partial pressures is voltage 1V, then monitoring voltage 1V is less than stable threshold voltage 1.2V, then shows outer
The input current scarce capacity that portion's power supply 200 charges to battery 300, then governor circuit 400 can stop through its enabled output
The output enabled signal that controls in end is to the enabled foot 123 of the second charging chip U2, to which the second charging chip U2 stops to battery 300
Charging, protects external power supply 200 with this.
When the charging detection output output charged state of the first charging chip U1 is the corresponding letter for not charging or having been filled with
When number such as high level signal, then the size regardless of stable threshold voltage and monitoring voltage, governor circuit 400 all stop logical
The enabled control signal of enabled output end output for crossing governor circuit 400, to which battery 300 is filled in the second charging chip U2 stoppings
Electricity, the overcharge after preventing the generation electric leakage when battery 300 does not charge and being full of.
The charging circuit 100 of the present embodiment passes through the charge control of connected governor circuit 400, it is therefore prevented that in battery 300
The overcharge generated after leaking electricity and being full of when not charging, also protects external power supply 200, is realized to battery
300 intelligent charge, and charging circuit 100, without the inductance for using occupied space larger, dimensional footprint is small, at low cost,
Electronic cigarette has the characteristics that small and exquisite, light.
3rd embodiment
Fig. 3 is the structural schematic diagram for the electronic cigarette that third embodiment of the invention provides.As shown in figure 3, the present embodiment and
One embodiment is essentially identical, the difference is that：Electronic cigarette includes governor circuit 400 and atomization circuit 500, governor circuit
400 atomization control output end is connected with the atomization control signal of atomization circuit 500, and governor circuit 400 is for being responsible for control
500 working condition of atomization circuit；Charging circuit 100 is connect with governor circuit 400, and charging circuit 100 is supplied to governor circuit 400
Electricity.Governor circuit 400 is connected with atomization circuit 500, and governor circuit 400 is for being responsible for control 500 working condition of atomization circuit.
In a wherein embodiment, electronic cigarette includes battery 300, battery 300 respectively with charging circuit 100, master control
Circuit 400, atomization circuit 500 are connected, and charging circuit 100 carries out charging current management to battery 300, and battery 300 is master control electricity
Road 400 and atomization circuit 500 provide electric energy.
Specifically, when external power supply 200 accesses charging circuit 100, the power input of the first charging module 110 can be with
Receive outer power voltage such as 5V, the first charging module 110 driven by outer power voltage, then the first charging module 110
Charging output end can export charging current such as 1A, and charge to connected battery 300.In addition, monitoring modular 130
Monitoring side is connected with the power input of the first charging module 110, and monitoring modular 130 can be used for monitoring external power supply 200
Signal intensity, and export corresponding monitoring voltage in the output end of monitoring modular 130, and the output end of monitoring modular 130 and master
The power supply monitoring input terminal for controlling circuit 400 is connected, so that governor circuit 400 determines whether to export enabled control according to monitoring voltage
Signal to the second charging module 120 Enable Pin, to which whether the second charging module 120 of control charges to battery 300.Master control electricity
Road 400 can with but be not limited to be compared with stable threshold voltage according to monitoring voltage, to confirm external power supply 200 to battery
The input current ability of 300 chargings, and then the second charging module 120 can be driven to carry out quick charge, or can stop driving
Second charging module 120 protects external power supply 200, realizes intelligent charge.Specifically, in charging process, work as prison
When surveying voltage not less than stable threshold voltage, the enabled signal that controls of the enabled output end output of governor circuit 400 is to the second charging
The Enable Pin of module 120 makes the second charging module 120 charge battery 300, and quick charge is carried out to battery 300 with this；Work as prison
When surveying voltage less than stable threshold voltage, the enabled output end of governor circuit 400 stops the enabled control signal of output, makes second to fill
Electric module 120 stops charging to battery 300, is protected to external power supply 200 with this.
For example, stable threshold voltage can with but be not limited to be set as voltage 1.2V, if monitoring voltage be voltage 1.4V,
Monitoring voltage 1.4V is not less than stable threshold voltage 1.2V, then governor circuit 400 can pass through the enabled output of governor circuit 400
End exports enabled control signal to the second connected charging module 120, and the second charging module 120 of driving exports charging current example
Such as 1A, and the charging output end of the first charging module 110 exports charging current such as 1A, then battery 300 can be increased to
The charging of 2A electric currents carries out quick charge with this to battery 300.If monitoring voltage is voltage 1V, monitoring voltage 1V is less than steady
Determine threshold voltage 1.2V, then shows the input current scarce capacity that external power supply 200 charges to battery 300, as a result, governor circuit
400 can stop the enabled control signal of enabled output end output by governor circuit 400, then the second charging module 120 stops
It charges to battery 300, external power supply 200 is protected with this.
In a wherein embodiment, the first charging chip U1 includes charging detection output pin 113, the first charging chip
The charging detection output pin 113 of U1 is connected with the charging detection input of governor circuit 400.In charging process, governor circuit
400 obtain charged state from the charging detection output of the first charging module 110, and judge whether further driving second with this
Charging module 120 carries out quick charge, it is therefore prevented that the overcharge generated after leaking electricity and being full of when battery 300 does not charge.
The electronic cigarette of the present embodiment includes charging circuit 100, governor circuit 400, atomization circuit 500, battery 300, in addition to
The suction function for having electronic cigarette itself, also has the function of quick charge.Wherein, by governor circuit 400 to charging circuit 100
Charge control, it is therefore prevented that the generation electric leakage when battery does not charge and the overcharge after being full of also carry out external power supply
Protection realizes the intelligent charge to battery 300, and charging circuit 100 is without the inductance for using occupied space larger, space
Area occupied is small, at low cost, and electronic cigarette has the characteristics that small and exquisite, light.
More than, only it is presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, although this
Invention is disclosed above with preferred embodiment, and however, it is not intended to limit the invention, any person skilled in the art,
It does not depart within the scope of technical solution of the present invention, when the technology contents using the disclosure above make a little change or are modified to equivalent
The equivalent embodiment of variation, as long as being without departing from technical solution of the present invention content, according to the technical essence of the invention to above real
Any simple modification, equivalent change and modification made by example are applied, in the range of still falling within technical solution of the present invention.
Claims (10)
1. a kind of charging circuit (100), which is characterized in that including：
First charging module (110), first charging module (110) include power input, charging output end and charging inspection
Output end is surveyed, the power input of first charging module (110) is connected with external power supply (200), the first charging mould
The charging output end of block (110) is connected with battery (300), the charging detection output of first charging module (110) according to
Charged state exports signal in charging or does not charge or have been filled with signal to the charging detection input of governor circuit (400)；
Second charging module (120), second charging module (120) include power input, Enable Pin and charging output end,
The power input of second charging module (120) is connected with the external power supply (200), second charging module
(120) Enable Pin is connected with the enabled output end of the governor circuit (400), the charging of second charging module (120)
Output end is connected with the battery (300)；
Monitoring modular (130), the monitoring modular (130) include monitoring side and output end, the monitoring of the monitoring modular (130)
End is connected with the power input of first charging module (110), the output end output monitoring electricity of the monitoring modular (130)
It is depressed into the power supply monitoring input terminal of the governor circuit (400), so that the governor circuit (400) is in first charging module
(110) when signal and the monitoring voltage are not less than stable threshold voltage in charging detection output output charging, institute is enabled
The Enable Pin for stating the second charging module (120) charges to the battery (300) to control second charging module (120).
2. charging circuit (100) as described in claim 1, which is characterized in that the governor circuit (400) is filled described first
Signal is not charged or is had been filled in the charging detection output output of electric module (110) or the monitoring voltage is less than the stabilization
When threshold voltage, stop the Enable Pin for enabling second charging module (120), to control second charging module
(120) stop charging to the battery (300).
3. charging circuit (100) as claimed in claim 1 or 2, which is characterized in that first charging module (110) includes
First charging chip (U1), first resistor (R1), second resistance (R2) and the first capacitance (C1)；
First charging chip (U1) includes power input foot (111), charging output pin (112), charging detection output pin
(113) it is filled for described first with charging current programming foot (114), the power input foot (111) of first charging chip (U1)
The charging output pin (112) of the power input of electric module (110), first charging chip (U1) is the first charging mould
The charging detection output pin (113) of the charging output end of block (110), first charging chip (U1) is the first charging mould
The charging detection output of block (110)；
The first end of the first resistor (R1) is connected with the charging current of first charging chip (U1) programming foot (114),
The second end of the first resistor (R1) is grounded；
The first end of the second resistance (R2) is connected with the power input foot (111) of first charging chip (U1), described
The second end of second resistance (R2) is connected with the charging of first charging chip (U1) detection output pin (113)；
The first end of first capacitance (C1) is connected with the power input foot (111) of first charging chip (U1), described
The second end of first capacitance (C1) is grounded.
4. charging circuit (100) as claimed in claim 3, which is characterized in that first charging chip (U1) includes enabled
Foot (123), the power input foot of the enabled foot (115) of first charging chip (U1) and first charging chip (U1)
(111) it is connected.
5. charging circuit (100) as claimed in claim 1 or 2, which is characterized in that second charging module (120) includes
Second charging chip (U2), 3rd resistor (R3) and the second capacitance (C2)；
Second charging chip (U2) includes power input foot (121), charging output pin (122), enabled foot (123) and charging
The power input foot (121) of current programmed foot (124), second charging chip (U2) is second charging module (120)
Power input, the charging output pin (122) of second charging chip (U2) is filling for the second charging module (120)
Electricity output end, the enabled foot (123) of second charging chip (U2) are the Enable Pin of second charging module (120)；
The first end of the 3rd resistor (R3) is connected with the charging current of second charging chip (U2) programming foot (124),
The second end of the 3rd resistor (R3) is grounded；
The first end of second capacitance (C2) is connected with the power input foot (121) of second charging chip (U2), described
The second end of second capacitance (C2) is grounded.
6. charging circuit (100) as claimed in claim 1 or 2, which is characterized in that the monitoring modular (130) includes the 4th
The first end of resistance (R4) and the 5th resistance (R5), the 4th resistance (R4) is the monitoring side of the monitoring modular (130), institute
The second end for stating the 4th resistance (R4) is the output end of the monitoring modular (130), the first end of the 5th resistance (R5) with
The second end of 4th resistance (R4) is connected, the second end ground connection of the 5th resistance (R5).
7. charging circuit (100) as claimed in claim 1 or 2, which is characterized in that the charging circuit (100) includes third
The first end of capacitance (C3) and the 4th capacitance (C4), the third capacitance (C3) is connected with the external power supply (200), and described
The second end of three capacitances (C3) is grounded, and the first end of the 4th capacitance (C4) is connected with the battery (300), the 4th electricity
Hold the second end ground connection of (C4).
8. a kind of electronic cigarette, which is characterized in that the electronic cigarette includes the charging electricity as described in claim 1 to 7 any one
Road (100).
9. electronic cigarette as claimed in claim 8, which is characterized in that the electronic cigarette includes governor circuit (400) and atomization electricity
Road (500), the atomization control signal of the atomization control output end and the atomization circuit (500) of the governor circuit (400)
It is connected, the governor circuit (400) is for being responsible for control atomization circuit (500) working condition；The charging circuit (100)
It is connect with the governor circuit (400), the charging circuit (100) is powered to the governor circuit (400).
10. electronic cigarette as claimed in claim 9, which is characterized in that the electronic cigarette includes battery (300), the battery
(300) it is connected respectively with the charging circuit (100), the governor circuit (400), the atomization circuit (500), the charging
Circuit (100) carries out charging current management to the battery (300), and the battery (300) is the governor circuit (400) and institute
It states atomization circuit (500) and electric energy is provided.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810220425.1A CN108390432B (en) | 2018-03-16 | 2018-03-16 | Charging circuit and electronic cigarette |
| PCT/CN2019/073129 WO2019174415A1 (en) | 2018-03-16 | 2019-01-25 | Charging circuit and electronic cigarette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810220425.1A CN108390432B (en) | 2018-03-16 | 2018-03-16 | Charging circuit and electronic cigarette |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108390432A true CN108390432A (en) | 2018-08-10 |
| CN108390432B CN108390432B (en) | 2021-03-26 |
Family
ID=63068089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810220425.1A Active CN108390432B (en) | 2018-03-16 | 2018-03-16 | Charging circuit and electronic cigarette |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108390432B (en) |
| WO (1) | WO2019174415A1 (en) |
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| CN109245248A (en) * | 2018-11-27 | 2019-01-18 | 湖南衡盈电子科技有限公司 | charging control circuit |
| CN109361253A (en) * | 2018-12-20 | 2019-02-19 | 成都烜奕物联科技有限公司 | Electronic cigarette charging storehouse, charging unit and method |
| WO2019174415A1 (en) * | 2018-03-16 | 2019-09-19 | 常州市派腾电子技术服务有限公司 | Charging circuit and electronic cigarette |
| CN115549230A (en) * | 2022-01-25 | 2022-12-30 | 荣耀终端有限公司 | Charging control circuit and terminal |
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| CN201303252Y (en) * | 2008-06-06 | 2009-09-02 | 北京集能伟业电子科技有限公司 | Intelligent battery management solar charge controller |
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| WO2019174415A1 (en) * | 2018-03-16 | 2019-09-19 | 常州市派腾电子技术服务有限公司 | Charging circuit and electronic cigarette |
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| CN115549230A (en) * | 2022-01-25 | 2022-12-30 | 荣耀终端有限公司 | Charging control circuit and terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019174415A1 (en) | 2019-09-19 |
| CN108390432B (en) | 2021-03-26 |
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