CN105449792B - Electronic tobacco evaporator charging circuit and electronic cigarette - Google Patents
Electronic tobacco evaporator charging circuit and electronic cigarette Download PDFInfo
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- CN105449792B CN105449792B CN201610013942.2A CN201610013942A CN105449792B CN 105449792 B CN105449792 B CN 105449792B CN 201610013942 A CN201610013942 A CN 201610013942A CN 105449792 B CN105449792 B CN 105449792B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0034—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting circuits
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The invention discloses a kind of electronic tobacco evaporator charging circuit and electronic cigarette, the charging circuit includes：5 interface input units of sequentially connected micro, input reverse-connection protection location, detection input voltage unit, power conversion unit, current monitoring unit, battery NTC detection units, battery and over-charging of battery protection location; the charging circuit further includes MCU control unit, and the detection input voltage unit, power conversion unit, current monitoring unit, battery NTC detection units are all connected to MCU control unit.Electronic tobacco evaporator charging circuit and electronic cigarette of the present invention improve input voltage on the basis of Micro USB interface limitation electric currents, realize quick charge by high-power input, improve the charge efficiency of electronic tobacco evaporator.
Description
Technical field
The present invention relates to electronic cigarette technical fields, more particularly, to a kind of electronic tobacco evaporator charging circuit and electronics
Cigarette.
Background technology
Electronic cigarette also known as virtual cigarette, electronic atomizer are mainly used for smoking cessation and cigarette substitute.Electronic cigarette has and cigarette
The same appearance and approximate taste or even electronic cigarette are more than the taste of general cigarette.Electronic cigarette can be inhaled also like cigarette is the same
Taste and feeling is sucked out in smoke.In addition, electronic cigarette does not have other harmful components such as tar and suspended particulates in cigarette, therefore
Electronic cigarette becomes the optimal selection of substitution cigarette.
Existing electronic tobacco evaporator charging modes generally use USB is as input terminal, nominal standard charge voltage
Direct current 5V, since Micro-USB interfaces are there are certain impedance, electric current flows through to form loss power and interface is caused to be sent out
Heat.And since impedance is constant, electric current is bigger, and loss power is bigger, and calorific value is bigger, therefore, the input of electronic tobacco evaporator
Nominal current is not more than 2A, and the maximal input for calculating electronic tobacco evaporator charging accordingly is P=5V*2A=10W, and 10W
Input power to electronic tobacco evaporator terminal electronic product charge power limitation, the charging time is longer, it has not been convenient to use.
Invention content
The purpose of the present invention is to provide a kind of electronic tobacco evaporator charging circuit and electronic cigarettes, can be in Micro-USB
Input voltage is improved on the basis of interface limitation electric current, quick charge is realized by high-power input, improves electronic tobacco
The charge efficiency of evaporator.
For achieving the above object, the present invention adopts the following technical scheme that：
A kind of electronic tobacco evaporator charging circuit, including：Sequentially connected micro-5 interfaces input unit, input are anti-
Connect protection location, detection input voltage unit, power conversion unit, current monitoring unit, battery NTC detection units, battery and
Over-charging of battery protection location, the charging circuit further include MCU control unit, the detection input voltage unit, power conversion
Unit, current monitoring unit, battery NTC detection units are all connected to MCU control unit.
Further, in above-mentioned electronic tobacco evaporator charging circuit, the micro-5 interfaces input unit includes
Micro-5 interfaces input.
Further, in above-mentioned electronic tobacco evaporator charging circuit, the input reverse-connection protection location includes：Third
The source electrode of metal-oxide-semiconductor Q3 and first resistor R1, the third metal-oxide-semiconductor Q3 are connected to the input of micro-5 interfaces, the third metal-oxide-semiconductor
The grid of Q3 is by first resistor R1, and the drain electrode of the third metal-oxide-semiconductor Q3 is even.
Further, in above-mentioned electronic tobacco evaporator charging circuit, the detection input voltage unit includes：Second
One end of resistance R2,3rd resistor R3 and third capacitance C3, the 3rd resistor R3 are connected to the input of micro-5 interfaces, described
The other end of 3rd resistor R3 is grounded by second resistance R2, and the third capacitance C3 is parallel to the both ends second resistance R2, described
Second resistance R2 is also connected to MCU control unit.
Further, in above-mentioned electronic tobacco evaporator charging circuit, the power conversion unit includes：First MOS
Pipe Q1, the 6th metal-oxide-semiconductor Q6, the first inductance L1, the first diode D1, the second capacitance C2, the 4th capacitance C4, the 8th capacitance C8,
Five resistance R5, the 6th resistance R6, twelfth resistor R12 and the second triode Q2；
One end of the twelfth resistor R12 is connected to MCU control unit, and the other end of the twelfth resistor R12 connects
It is connected to the base stage of the second triode Q2, the collector of the second triode Q2 is connected to the 6th metal-oxide-semiconductor Q6 and the first metal-oxide-semiconductor Q1
Grid, the second triode Q2 emitter ground connection；It is defeated that one end of the 5th resistance R5 is connected to micro-5 interfaces
Enter, the other end of the 5th resistance R5 is connected to the grid of the 6th metal-oxide-semiconductor Q6 and the first metal-oxide-semiconductor Q1；The 6th metal-oxide-semiconductor Q6
Source electrode be connected to the source electrode of the first metal-oxide-semiconductor Q1, one end of the 6th resistance R6 connects the grid of the first metal-oxide-semiconductor Q1, described
The other end of 6th resistance R6 passes through the 4th capacitance C4 ground connection；One end of the cathode and the first inductance L1 of the first diode D1
It is all connected to the drain electrode of the first metal-oxide-semiconductor Q1, the other end of the plus earth of the first diode D1, the first inductance L1 connects
It is connected to the current monitoring unit, and the other end of the first inductance L1 also passes through the 8th capacitance C8 ground connection.
Further, in above-mentioned electronic tobacco evaporator charging circuit, the MCU control unit includes：First control
Chip U1, the 4th resistance R4, eleventh resistor R11, thirteenth resistor R13, the 6th capacitance C6, the 7th capacitance C7, the two or two pole
The 5th foot of pipe D2 and third voltage-stabiliser tube D3, the first control chip U1 are connected to one end of the twelfth resistor R12, institute
The one end for stating the 4th resistance R4 is connected to micro-5 interfaces input cathode, and the other end of the 4th resistance R4 passes through the 11st
Resistance R11 and thirteenth resistor R13 is connected to the 4th foot of the first control chip U1；The 7th capacitance C7, the second diode D2
Cathode and the cathode of third voltage-stabiliser tube D3 be all connected to the 1st foot of the first control chip U1, the 7th capacitance C7's is another
End and the anode of third voltage-stabiliser tube D3 are grounded, and the anode of the second diode D2 is connected to the by thirteenth resistor R13
The anode of the 4th foot of one control chip U1, the second diode D2 also passes through the 6th capacitance C6 ground connection；The first control core
The 9th foot of piece U1 is connected to the common end of second resistance R2 and 3rd resistor R3.
Further, in above-mentioned electronic tobacco evaporator charging circuit, the current monitoring unit includes：7th resistance
R7, the 15th resistance R15 and the 16th resistance R16, one end of the 7th resistance R7 are connected to the first inductance L1, and the described 7th
The other end of resistance R7 is connected to battery NTC detection units；And one end of the 7th resistance R7 is connected by the 16th resistance R16
It is connected to the 13rd foot of the first control chip U1, the other end of the 7th resistance R7 is connected to first by the 15th resistance R15
Control the 12nd foot of chip U1.
Further, in above-mentioned electronic tobacco evaporator charging circuit, the battery NTC detection units include：8th
One end of resistance R8 and thermistor R17, the 8th resistance R8 are connected to the 7th resistance R7, and the 8th resistance R8's is another
End is grounded by thermistor R17；The common end of the 8th resistance R8 and thermistor R17 is also attached to the first control chip
The 11st foot of U1.
Further, in above-mentioned electronic tobacco evaporator charging circuit, the over-charging of battery protection location includes：Second
Control chip U2, the 9th resistance R9, the tenth resistance R10, the 5th capacitance C5, the 4th metal-oxide-semiconductor Q4 and the 5th metal-oxide-semiconductor Q5；Described
One end of nine resistance R9 is connected to the anode of battery, and the other end of the 9th resistance R9 is connected to the of the second control chip U2
2 feet, one end ground connection of the tenth resistance R10, the other end of the tenth resistance R10 are connected to the of the second control chip U2
1 foot；One end of the 5th capacitance C5 is connected to the 2nd foot of the second control chip U2, and the other end of the 5th capacitance C5 connects
It is connected to the cathode of battery；The 3rd foot of the second control chip U2 is connected to the cathode of battery, the second control chip U2's
4th foot is connected to the grid of the 5th metal-oxide-semiconductor Q5, and the 5th foot of the second control chip U2 is connected to the grid of the 4th metal-oxide-semiconductor Q4
The source electrode of pole, the 5th metal-oxide-semiconductor Q5 is connected with the drain electrode of the 4th metal-oxide-semiconductor Q4, the drain electrode of the 5th metal-oxide-semiconductor Q5 and battery
Cathode is connected, the source electrode ground connection of the 4th metal-oxide-semiconductor Q4.
In addition, the present invention also provides a kind of electronic cigarettes including above-mentioned electronic tobacco evaporator charging circuit.
Electronic tobacco evaporator charging circuit and electronic cigarette of the present invention are on the basis of Micro-USB interface limitation electric currents
Input voltage is improved, quick charge is realized by high-power input, improves the charge efficiency of electronic tobacco evaporator.
Description of the drawings
Fig. 1 is the circuit diagram of electronic tobacco evaporator charging circuit of the present invention.
Specific implementation mode
To facilitate the understanding of the present invention, below with reference to relevant drawings to invention is more fully described.In attached drawing
Give presently preferred embodiments of the present invention.But the present invention can realize in many different forms, however it is not limited to this paper institutes
The embodiment of description.Keep the understanding to the disclosure more thorough on the contrary, purpose of providing these embodiments is
Comprehensively.
Referring to Fig. 1, electronic tobacco evaporator charging circuit of the present invention includes：Sequentially connected micro-5 interfaces input
Unit 100, input reverse-connection protection location 200, detection input voltage unit 300, power conversion unit 400, current monitoring unit
600, battery NTC detection units 700, battery 800 and over-charging of battery protection location 900, the charging circuit further include MCU controls
Unit 500, the detection input voltage unit 300, power conversion unit 400, current monitoring unit 600, battery NTC detections are single
Member 700 is all connected to MCU control unit 500.
Wherein, the micro-5 interfaces input unit 100 includes：Micro-5 interfaces input J1, there is 5 input lines.
The input reverse-connection protection location 200 includes：Third metal-oxide-semiconductor Q3 and first resistor R1, the third metal-oxide-semiconductor Q3's
Source electrode is connected to micro-5 interfaces input J1, and the grid of the third metal-oxide-semiconductor Q3 passes through first resistor R1, the third metal-oxide-semiconductor
The drain electrode of Q3 is even.
The detection input voltage unit 300 includes：Second resistance R2,3rd resistor R3 and third capacitance C3, described
One end of three resistance R3 is connected to micro-5 interfaces input J1, and the other end of the 3rd resistor R3 is connect by second resistance R2
Ground, the third capacitance C3 are parallel to the both ends second resistance R2, and the second resistance R2 is also connected to MCU control unit 500.
The power conversion unit 400 includes：First metal-oxide-semiconductor Q1, the 6th metal-oxide-semiconductor Q6, the first inductance L1, the first diode
D1, the second capacitance C2, the 4th capacitance C4, the 8th capacitance C8, the 5th resistance R5, the 6th resistance R6, twelfth resistor R12 and second
Triode Q2；
One end of the twelfth resistor R12 is connected to MCU control unit 500, the other end of the twelfth resistor R12
It is connected to the base stage of the second triode Q2, the collector of the second triode Q2 is connected to the 6th metal-oxide-semiconductor Q6 and the first metal-oxide-semiconductor
The grid of Q1, the emitter ground connection of the second triode Q2；It is defeated that one end of the 5th resistance R5 is connected to micro-5 interfaces
Enter J1, the other end of the 5th resistance R5 is connected to the grid of the 6th metal-oxide-semiconductor Q6 and the first metal-oxide-semiconductor Q1；6th metal-oxide-semiconductor
The source electrode of Q6 is connected to the source electrode of the first metal-oxide-semiconductor Q1, and one end of the 6th resistance R6 connects the grid of the first metal-oxide-semiconductor Q1, institute
The other end for stating the 6th resistance R6 passes through the 4th capacitance C4 ground connection；The cathode of the first diode D1 and the one of the first inductance L1
End is all connected to the drain electrode of the first metal-oxide-semiconductor Q1, the plus earth of the first diode D1, the other end of the first inductance L1
It is connected to the current monitoring unit 600, and the other end of the first inductance L1 also passes through the 8th capacitance C8 ground connection.
The MCU control unit 500 includes：First control chip U1, the 4th resistance R4, eleventh resistor R11, the 13rd
Resistance R13, the 6th capacitance C6, the 7th capacitance C7, the second diode D2 and third voltage-stabiliser tube D3, the first control chip U1's
5th foot PWM1 is connected to one end of the twelfth resistor R12, and one end of the 4th resistance R4 is connected to micro-5 interfaces
Cathode J1 is inputted, the other end of the 4th resistance R4 is connected to the first control by eleventh resistor R11 and thirteenth resistor R13
The 4th foot P0.4 of coremaking piece U1；The cathode of the 7th capacitance C7, the cathode of the second diode D2 and third voltage-stabiliser tube D3 connect
It is connected to the 1st foot VDD of the first control chip U1, the anode of the other end and third voltage-stabiliser tube D3 of the 7th capacitance C7 connects
Ground, the anode of the second diode D2 are connected to the 4th foot P0.4 of the first control chip U1, institute by thirteenth resistor R13
The anode of the second diode D2 is stated also by the 6th capacitance C6 ground connection；The 9th foot P4.0 of the first control chip U1 is connected to
The common end of second resistance R2 and 3rd resistor R3.
Wherein, the first control chip U1 uses SN8P2711A model chips, the 1st foot VDD, the 2nd foot P0.3, the 3rd foot
P0.2, the 4th foot P0.4, the 5th foot PWM1, the 6th foot PWM0, the 7th foot P0.1, the 8th foot P0.0, the 9th foot P4.0, the 10th foot P4.1,
11st foot P4.2, the 12nd foot P4.3, the 13rd foot P4.4, the 14th foot VSS.
The current monitoring unit 600 includes：7th resistance R7, the 15th resistance R15 and the 16th resistance R16, it is described
One end of 7th resistance R7 is connected to the first inductance L1, and the other end of the 7th resistance R7 is connected to battery NTC detection units
700；And one end of the 7th resistance R7 is connected to the 13rd foot P4.4 of the first control chip U1 by the 16th resistance R16,
The other end of the 7th resistance R7 is connected to the 12nd foot P4.3 of the first control chip U1 by the 15th resistance R15.
The battery NTC detection units 700 include：8th resistance R8 and thermistor R17, the one of the 8th resistance R8
End is connected to the 7th resistance R7, and the other end of the 8th resistance R8 is grounded by thermistor R17；The 8th resistance R8 with
The common end of thermistor R17 is also attached to the 11st foot P4.2 of the first control chip U1.
The battery 800 includes single lithium battery, and anode is connected with current monitoring unit 600.
The over-charging of battery protection location 900 includes：Second control chip U2, the 9th resistance R9, the tenth resistance R10, the
Five capacitance C5, the 4th metal-oxide-semiconductor Q4 and the 5th metal-oxide-semiconductor Q5；One end of the 9th resistance R9 is connected to the anode of battery 800, institute
The other end for stating the 9th resistance R9 is connected to the 2nd foot VDD of the second control chip U2, and one end of the tenth resistance R10 is grounded,
The other end of the tenth resistance R10 is connected to the 1st foot VM of the second control chip U2；One end of the 5th capacitance C5 connects
In the 2nd foot VDD of the second control chip U2, the other end of the 5th capacitance C5 is connected to the cathode of battery 800；Described second
The 3rd foot VSS of control chip U2 is connected to the cathode of battery 800, and the 4th foot DO of the second control chip U2 is connected to the 5th
5th foot CO of the grid of metal-oxide-semiconductor Q5, the second control chip U2 is connected to the grid of the 4th metal-oxide-semiconductor Q4, the 5th MOS
The source electrode of pipe Q5 is connected with the drain electrode of the 4th metal-oxide-semiconductor Q4, and the drain electrode of the 5th metal-oxide-semiconductor Q5 is connected with the cathode of battery 800, institute
State the source electrode ground connection of the 4th metal-oxide-semiconductor Q4.
Wherein, the second control chip U2 uses the S8241 models of Seiko brand.
There is positive cathode in the input reverse-connection protection location 200, DC direct currents, electronic component receives polarity of voltage
Permanent damages can be burnt on the contrary, so that product rejection, the present invention is connected in circuit using the characteristic of metal-oxide-semiconductor, input terminal positive and negative anodes
Reversed, circuit does not turn on, and without electric current, product does not work, and input is positive and negative to connect right, circuit normal work.
The electronic tobacco evaporator charging circuit course of work of the present invention is as follows：
The detection input voltage unit 300 is connected with input reverse-connection protection location 200, MCU control unit 500, work(
Rate converting unit 400 is connected with input reverse-connection protection location 200, MCU control unit 500, monitors input voltage, power conversion
Unit 400 monitors the variation of input voltage when output power increases gradually, when output power is increased close to input power
When, input voltage can be pulled low, and MCU control unit 500 receives variable condition, and MCU control unit 500 is to power conversion unit
400 send out information, and the power conversion unit 400 receives information and makes power adjustment, and the power conversion unit 400 receives
Variation of the MCU control unit 500 to detection input voltage unit 300, the power conversion unit 400 stop output power and increase
Action keeps the power of current micro-5 interfaces input 100 balanced with the input power of power conversion unit 400.
MCU control unit 500, institute are sent information to when the detection input voltage unit 300 detects cell voltage
It states MCU control unit 500 and receives the information, MCU control unit 500 sends out information to power conversion unit 400, power is made to convert
The output of unit 400 obtains corresponding power, and for cell voltage 0 between 2.7V, charge power is smaller, can extend the circulating battery longevity
Life；When the detection input voltage unit 300 detects cell voltage in 2.7V to 4.0V, input power subtracts loss power,
Total power charges to battery, achievees the effect that fast charge.
The battery NTC detection units 700 are when detecting that 800 temperature of battery is high, it may occur that it is dangerous, pass through MCU
Control unit 500 sends a signal to power conversion unit 400, and the power conversion unit 400 stops input, reaches protection effect
Fruit.When cell voltage reaches 4.2V, over-charging of battery protection location 900 starts, and closes battery charge circuit so that battery charges
Voltage is in safe voltage.
The present invention can be to 1 section lithium battery charging；The battery is the battery that support charging current is 1C-20C.The battery
800 battery core is：The lighium polymer battery core that do not explode, do not burn, do not smolder.
In addition, the present invention also provides the electronic cigarettes that one includes above-mentioned electronic tobacco evaporator charging circuit.
Compared with the prior art, electronic tobacco evaporator charging circuit and electronic cigarette of the present invention by identify input power and
Input power converts adjust automatically and charges to cell voltage and current versus cell maximal efficiency, and stepwise voltage charges to battery,
The service life of battery can be extended.
To sum up, electronic tobacco evaporator charging circuit and electronic cigarette of the present invention are in Micro-USB interface limitation electric currents
On the basis of improve input voltage, quick charge is realized by high-power input, improve electronic tobacco evaporator charging effect
Rate.
Description and application of the invention herein are illustrative, is not wishing to limit the scope of the invention to above-described embodiment
In.The deformation and change of embodiments disclosed herein are possible, real for those skilled in the art
The replacement and equivalent various parts for applying example are well known.It should be appreciated by the person skilled in the art that not departing from the present invention
Spirit or essential characteristics in the case of, the present invention can in other forms, structure, arrangement, ratio, and with other components,
Material and component are realized.Without departing from the scope and spirit of the present invention, can to embodiments disclosed herein into
The other deformations of row and change.
Claims (6)
1. a kind of electronic tobacco evaporator charging circuit, which is characterized in that including：Sequentially connected micro-5 interfaces input is single
Member, input reverse-connection protection location, detection input voltage unit, power conversion unit, current monitoring unit, battery NTC detections are single
Member, battery and over-charging of battery protection location, the charging circuit further include MCU control unit, the detection input voltage unit,
Power conversion unit, current monitoring unit, battery NTC detection units are all connected to MCU control unit；The micro-5 interfaces
Input unit includes the input of micro-5 interfaces；The input reverse-connection protection location includes：Third metal-oxide-semiconductor Q3 and first resistor R1,
The source electrode of the third metal-oxide-semiconductor Q3 is connected to the input of micro-5 interfaces, and the grid of the third metal-oxide-semiconductor Q3 passes through first resistor
The drain electrode of R1, the third metal-oxide-semiconductor Q3 are even；The detection input voltage unit includes：Second resistance R2,3rd resistor R3 and
One end of third capacitance C3, the 3rd resistor R3 are connected to the input of micro-5 interfaces, and the other end of the 3rd resistor R3 is logical
Second resistance R2 ground connection is crossed, the third capacitance C3 is parallel to the both ends second resistance R2, and the second resistance R2 is also connected to MCU
Control unit；The power conversion unit includes：First metal-oxide-semiconductor Q1, the 6th metal-oxide-semiconductor Q6, the first inductance L1, the first diode
D1, the second capacitance C2, the 4th capacitance C4, the 8th capacitance C8, the 5th resistance R5, the 6th resistance R6, twelfth resistor R12 and second
Triode Q2；
One end of the twelfth resistor R12 is connected to MCU control unit, and the other end of the twelfth resistor R12 is connected to
The collector of the base stage of second triode Q2, the second triode Q2 is connected to the grid of the 6th metal-oxide-semiconductor Q6 and the first metal-oxide-semiconductor Q1
Pole, the emitter ground connection of the second triode Q2；One end of the 5th resistance R5 is connected to the input of micro-5 interfaces, institute
The other end for stating the 5th resistance R5 is connected to the grid of the 6th metal-oxide-semiconductor Q6 and the first metal-oxide-semiconductor Q1；The source of the 6th metal-oxide-semiconductor Q6
Pole is connected to the source electrode of the first metal-oxide-semiconductor Q1, and one end of the 6th resistance R6 connects the grid of the first metal-oxide-semiconductor Q1, and the described 6th
The other end of resistance R6 passes through the 4th capacitance C4 ground connection；One end of the cathode and the first inductance L1 of the first diode D1 connects
It is connected to the drain electrode of the first metal-oxide-semiconductor Q1, the other end of the plus earth of the first diode D1, the first inductance L1 is connected to
The current monitoring unit, and the other end of the first inductance L1 also passes through the 8th capacitance C8 ground connection；
The battery includes single lithium battery, and anode is connected with current monitoring unit.
2. electronic tobacco evaporator charging circuit according to claim 1, which is characterized in that the MCU control unit packet
It includes：First control chip U1, the 4th resistance R4, eleventh resistor R11, thirteenth resistor R13, the 6th capacitance C6, the 7th capacitance
C7, the second diode D2 and third voltage-stabiliser tube D3, the 5th foot of the first control chip U1 are connected to the twelfth resistor
One end of one end of R12, the 4th resistance R4 is connected to micro-5 interfaces input cathode, and the 4th resistance R4's is another
End is connected to the 4th foot of the first control chip U1 by eleventh resistor R11 and thirteenth resistor R13；The 7th capacitance C7,
The cathode of second diode D2 and the cathode of third voltage-stabiliser tube D3 are all connected to the 1st foot of the first control chip U1, and the described 7th
The other end of capacitance C7 and the anode of third voltage-stabiliser tube D3 are grounded, and the anode of the second diode D2 passes through thirteenth resistor
R13 is connected to the 4th foot of the first control chip U1, and the anode of the second diode D2 also passes through the 6th capacitance C6 ground connection；Institute
The 9th foot for stating the first control chip U1 is connected to the common end of second resistance R2 and 3rd resistor R3.
3. electronic tobacco evaporator charging circuit according to claim 2, which is characterized in that the current monitoring unit packet
It includes：One end of 7th resistance R7, the 15th resistance R15 and the 16th resistance R16, the 7th resistance R7 are connected to the first inductance
The other end of L1, the 7th resistance R7 are connected to battery NTC detection units；And one end of the 7th resistance R7 passes through the tenth
Six resistance R16 are connected to the 13rd foot of the first control chip U1, and the other end of the 7th resistance R7 passes through the 15th resistance R15
It is connected to the 12nd foot of the first control chip U1.
4. electronic tobacco evaporator charging circuit according to claim 3, which is characterized in that the battery NTC detections are single
Member includes：One end of 8th resistance R8 and thermistor R17, the 8th resistance R8 are connected to the 7th resistance R7, and the described 8th
The other end of resistance R8 is grounded by thermistor R17；The common end of the 8th resistance R8 and thermistor R17 is also attached to
The 11st foot of first control chip U1.
5. electronic tobacco evaporator charging circuit according to claim 4, which is characterized in that the over-charging of battery protection is single
Member includes：Second control chip U2, the 9th resistance R9, the tenth resistance R10, the 5th capacitance C5, the 4th metal-oxide-semiconductor Q4 and the 5th MOS
Pipe Q5；One end of the 9th resistance R9 is connected to the anode of battery, and the other end of the 9th resistance R9 is connected to the second control
The 2nd foot of coremaking piece U2, one end ground connection of the tenth resistance R10, the other end of the tenth resistance R10 are connected to the second control
The 1st foot of coremaking piece U2；One end of the 5th capacitance C5 is connected to the 2nd foot of the second control chip U2, the 5th capacitance
The other end of C5 is connected to the cathode of battery；The 3rd foot of the second control chip U2 is connected to the cathode of battery, and described second
The 4th foot of control chip U2 is connected to the grid of the 5th metal-oxide-semiconductor Q5, and the 5th foot of the second control chip U2 is connected to the 4th
The source electrode of the grid of metal-oxide-semiconductor Q4, the 5th metal-oxide-semiconductor Q5 is connected with the drain electrode of the 4th metal-oxide-semiconductor Q4, the 5th metal-oxide-semiconductor Q5's
Drain electrode is connected with the cathode of battery, the source electrode ground connection of the 4th metal-oxide-semiconductor Q4.
6. a kind of electronic cigarette, which is characterized in that charge including such as claim 1 ~ 5 any one of them electronic tobacco evaporator electric
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013942.2A CN105449792B (en) | 2016-01-07 | 2016-01-07 | Electronic tobacco evaporator charging circuit and electronic cigarette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013942.2A CN105449792B (en) | 2016-01-07 | 2016-01-07 | Electronic tobacco evaporator charging circuit and electronic cigarette |
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| CN105449792A CN105449792A (en) | 2016-03-30 |
| CN105449792B true CN105449792B (en) | 2018-09-25 |
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| CN201610013942.2A Active CN105449792B (en) | 2016-01-07 | 2016-01-07 | Electronic tobacco evaporator charging circuit and electronic cigarette |
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| CN105876872B (en) * | 2016-06-17 | 2018-10-26 | 深圳瀚星翔科技有限公司 | Electronic cigarette working efficiency in a low voltage state promotes circuit and its method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103975501B (en) * | 2013-04-27 | 2016-06-08 | 惠州市吉瑞科技有限公司 | A kind of charging method based on electronic cigarette packet and corresponding electronic cigarette packet |
| CN203491727U (en) * | 2013-07-11 | 2014-03-19 | 向智勇 | USB charger for electronic cigarette |
| CN204046251U (en) * | 2014-09-22 | 2014-12-24 | 深圳市新芯矽创电子科技有限公司 | Electronic cigarette charging circuit |
| CN104600813B (en) * | 2015-02-11 | 2017-12-19 | 南京矽力杰半导体技术有限公司 | The charger and its control method of adaptive input current limit |
| CN205319745U (en) * | 2016-01-07 | 2016-06-15 | 深圳市施美乐科技股份有限公司 | Electron tobacco evaporimeter charging circuit and electron cigarette |
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Inventor after: Liu Jianfu Inventor after: Zhong Kejun Inventor after: Guo Xiaoyi Inventor after: Huang Wei Inventor after: Yu Hong Inventor before: Wu Yangyang |
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Effective date of registration: 20160511 Address after: Wanjiali road 410007 in Hunan province Changsha Yuhua District, three No. 188 Applicant after: China Tobacco Hunan Industrial Co., Ltd. Address before: 518000, Gongming District, Guangming District, Guangdong, Anhui Province, Tian Mai Pu community underwear collection base, No. first, second, B, third, B and four B District 5 Applicant before: SHENZHEN SMACO TECHNOLOGY LIMITED |
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Application publication date: 20160330 Assignee: Shenzhen Xiangyuan science and Technology Co., Ltd. Assignor: China Tobacco Hunan Industrial Co., Ltd. Contract record no.: 2017430000024 Denomination of invention: Charging circuit of electronic tobacco evaporator and electronic cigarette License type: Common License Record date: 20171124 |
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