CN204667224U - A kind of electronic cigarette Auto-matching temperature control circuit - Google Patents
A kind of electronic cigarette Auto-matching temperature control circuit Download PDFInfo
- Publication number
- CN204667224U CN204667224U CN201520410936.1U CN201520410936U CN204667224U CN 204667224 U CN204667224 U CN 204667224U CN 201520410936 U CN201520410936 U CN 201520410936U CN 204667224 U CN204667224 U CN 204667224U
- Authority
- CN
- China
- Prior art keywords
- resistance
- circuit
- electric capacity
- triode
- mcu
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a kind of electronic cigarette Auto-matching temperature control circuit, comprise buck topological circuit, MOS driving circuit, MCU, atomizer, temperature sensing circuit and power circuit, MOS driving circuit is connected with buck topological circuit, temperature sensing circuit and atomizer are all connected with buck topological circuit, MOS driving circuit, temperature sensing circuit are all connected with MCU with buck topological circuit, and buck topological circuit, MOS driving circuit, temperature sensing circuit are all connected with power circuit with MCU.A kind of electronic cigarette Auto-matching temperature control circuit of the present utility model, by described temperature-control circuit, the heating wire works temperature remained constant of electronic smoke atomizer can be made, effectively prevent heating wire dry combustion method and tobacco tar from burning, and preventing from finding out peak power output point to make this atomizer amount of smoke maximum under dry combustion method and the prerequisite of burning by calibration in advance.
Description
Technical field
The utility model relates to electronic power supply field, particularly relates to a kind of electronic cigarette Auto-matching temperature control circuit.
Background technology
Current, electronic cigarette due to atomizer thermometric immature, easily occur that atomizer does not have the phenomenon of tobacco tar dry combustion method, thus affect the atomizer life-span, in addition, also easily occur that the heating wire temperature of atomizer is too high and cause tobacco tar to burn affecting mouthfeel.For this reason, need to develop a kind of can test and the circuit of the heating wire temperature of the sub-tobacco atomizer of automatic control electric, ensure that electronic cigarette can maintain the temperature in rational scope in the course of the work, electronic cigarette dry combustion method can be prevented and burn, the amount of smoke of atomizer can also be made maximum.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned the deficiencies in the prior art, provides a kind of electronic cigarette Auto-matching temperature control circuit.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of electronic cigarette Auto-matching temperature control circuit, comprise buck topological circuit, MOS driving circuit, MCU, atomizer, temperature sensing circuit and power circuit, described MOS driving circuit is connected with described buck topological circuit, described temperature sensing circuit and described atomizer are all connected with described buck topological circuit, described MOS driving circuit, temperature sensing circuit is all connected with described MCU with buck topological circuit, described buck topological circuit, MOS driving circuit, temperature sensing circuit and MCU are all connected with described power circuit.
The beneficial effects of the utility model are: a kind of electronic cigarette Auto-matching temperature control circuit of the present utility model, by described temperature detection and control, the heating wire works temperature remained constant of electronic smoke atomizer can be made, effectively prevent heating wire dry combustion method and tobacco tar from burning, and preventing from finding out peak power output point to make this atomizer amount of smoke maximum under dry combustion method and the prerequisite of burning by calibration in advance.
On the basis of technique scheme, the utility model can also do following improvement.
Further: described power circuit comprises battery, LDO mu balanced circuit and pump pressure circuit, described buck topological circuit, LDO mu balanced circuit are connected with described battery respectively with pump pressure circuit, described LDO mu balanced circuit is connected with described MCU, voltage is provided for giving described MCU, described pump pressure circuit is connected with described MOS driving circuit, provides voltage for giving described MOS driving circuit and temperature sensing circuit.
The beneficial effect of above-mentioned further scheme is: by described LDO mu balanced circuit and pump pressure circuit, can provide normal operating voltage to respectively described MCU and MOS driving circuit.
Further: described temperature sensing circuit comprises amplification chip U1, constant current tube U8, triode Q10, diode D8, electric capacity C01, electric capacity C02, resistance R80, resistance R01, resistance R02, resistance R03, resistance R04, resistance R07, resistance R010, resistance R011, No. 4 pins of described amplification chip U1 are connected to ground, No. 5 are parallel with described electric capacity C02 and resistance R04 between pin and ground, No. 5 pins are also connected with the negative pole of described diode D8 by described resistance R03, and described resistance R03 is connected with described MCU with the common port of described diode D8, No. 6 pins are connected to ground by described resistance R02, No. 6 in sequential series between pin and ground described resistance R010 and resistance R011, and described resistance R010 is connected with described MCU with the common port of resistance R011, No. 7 pins are connected with No. 6 pins by described resistance R01, No. 8 pins are connected with the output terminal of described pump pressure circuit by described resistance R07, No. 8 pins are also connected to ground by described electric capacity C01, the positive pole of described diode D8 is connected with the collector of described triode Q10 by described constant current tube U8, the base stage of described triode Q10 is connected with described MCU by described resistance R80, the emitter of described triode Q10 is connected with the output terminal of described LDO mu balanced circuit.
The beneficial effect of above-mentioned further scheme is: by described temperature sensing circuit can Real-Time Monitoring atomizer heating wire temperature and feed back to described MCU, be convenient to described MCU and control the temperature constant of heating wire.
Further: described temperature sensing circuit also comprises resistance R05, resistance 06, resistance R08 and electric capacity C03, No. 1 pin of described amplification chip U1 is connected with described MCU, No. 2 pins are connected to ground by described resistance R06, No. 2 pins are also connected with No. 1 pin by described resistance R08, No. 3 pins are connected with the output terminal of described atomizer by described resistance R05, and No. 3 pins are also connected to ground by described electric capacity C03.
Further: described MOS driving circuit comprises triode Q5, triode Q6, triode Q7, triode Q8, resistance R44 and resistance R45, the emitter of described triode Q5 is connected with the emitter of described triode Q6, and the common port of the two is connected with the PWM output terminal of described MCU, the collector of described triode Q7 is connected with the collector of described triode Q8, and the common port of the two is connected with the input end of described buck topological circuit, the collector of described triode Q5 is connected with the base stage of described triode Q7, the collector of described triode Q6 is connected with the base stage of described triode Q8, the emitter of described triode Q7 is connected with the output terminal of described pump pressure circuit, the emitter of described triode Q8 is connected to ground, between described resistance R44 and the resistance R45 output terminal at described pump pressure circuit in sequential series and ground, the base stage of described triode Q5 is connected with the base stage of described triode Q6, and the common port of the two is connected with the common port of described resistance R44 and resistance R45.
The beneficial effect of above-mentioned further scheme is: by described MOS driving circuit, can accelerate conducting and the shutoff of metal-oxide-semiconductor, improves power-efficient; Powered by 5V, reduce MOS conducting resistance, strengthen MOS through-current capability thus improve whole circuit peak power output.
Further: described MOS driving circuit also comprises PWM negater circuit, the input end of described PWM negater circuit is connected with the PWM output terminal of described MCU, the output terminal of described PWM negater circuit is connected with the emitter of described triode Q5, described PWM negater circuit comprises triode Q9, resistance R47, resistance R48 and electric capacity C48, the collector of described triode Q9 is connected with the emitter of described triode Q5, the emitter of described triode Q9 is connected to ground, described resistance R47 and electric capacity C48 is connected with in turn between the base stage of described triode Q9 and the PWM output terminal of described MCU, the common port of described resistance R47 and electric capacity C48 is by described resistance R48 ground connection.
The beneficial effect of above-mentioned further scheme is: by described PWM negater circuit, electric capacity C48 plays the effect every straight-through friendship, make to only have MCU normally to work PWM when exporting, effectively conducting and the shutoff of MOS ability, when avoiding MCU to crash, its PWM delivery outlet is random state and causes the permanent conducting of MOS and burn, thus avoids battery may bring safety hazard because of heavy-current discharge time long.
Further: described buck topological circuit comprises inductance L 1, inductance L 2, export sampling resistor R41, resistance R42, electric capacity C41, electric capacity C45, electric capacity C46, metal-oxide-semiconductor U2, diode D5 and current sampling resistor R09, described electric capacity C45 and electric capacity C46 is in parallel, and one of described electric capacity C45 and electric capacity C46 in sequential seriesly between common port and ground has described inductance L 1 and electric capacity C41, described inductance L 1 is connected with described anode with the common port of electric capacity C41, described electric capacity C45 is connected with the positive pole of described diode D5 with the other end of electric capacity C46, in sequential series by described resistance R41 and resistance R42 between the negative pole of described diode D5 and ground, the negative pole of described diode D5 is connected with the input end of external loading with the described common port of resistance R41, the output terminal of external loading passes through described resistance R09 ground connection, 1 of described metal-oxide-semiconductor, 2, No. 3 pins ground connection respectively, No. 4 pins are connected with the output terminal of described MOS driving circuit, and 5, 6, 7, No. 8 pins are connected with the common port of electric capacity C45 with described inductance L 1 respectively.
The beneficial effect of above-mentioned further scheme is: by regulating the dutycycle of PWM, can regulation output voltage very easily.
Further: also to comprise battery voltage detection circuit, the input end of described battery voltage detection circuit is connected with described battery, and output terminal is connected with described MCU.Described battery voltage detection circuit comprises resistance R3, resistance R6 and electric capacity C6, in sequential series between the both positive and negative polarity of described battery have described resistance R3 and resistance R6, described resistance R3 is connected with the negative pole of described battery by described electric capacity C6 with the common port of resistance R6, and the negative pole of described battery is connected to ground.
The beneficial effect of above-mentioned further scheme is: can the voltage of Real-Time Monitoring battery by described battery voltage detection circuit, so just can know the real time electrical quantity of battery.
Accompanying drawing explanation
Fig. 1 is a kind of electronic cigarette Auto-matching temperature control circuit structure schematic diagram of the present utility model;
Fig. 2 is LDO mu balanced circuit figure in a kind of electronic cigarette Auto-matching temperature control circuit of the present utility model;
Fig. 3 is pump pressure circuit diagram in a kind of electronic cigarette Auto-matching temperature control circuit of the present utility model;
Fig. 4 is temperature sensing circuit figure in a kind of electronic cigarette Auto-matching temperature control circuit of the present utility model;
Fig. 5 is MOS driving circuit figure in a kind of electronic cigarette Auto-matching temperature control circuit of the present utility model;
Fig. 6 is buck topological circuit figure in a kind of electronic cigarette Auto-matching temperature control circuit of the present utility model;
Fig. 7 is battery voltage detection circuit figure in a kind of electronic cigarette Auto-matching temperature control circuit of the present utility model;
Fig. 8 is USB charge management circuit figure in a kind of electronic cigarette Auto-matching temperature control circuit of the present utility model.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, a kind of electronic cigarette Auto-matching temperature control circuit structure schematic diagram, comprise buck topological circuit, MOS driving circuit, MCU, atomizer, temperature sensing circuit and power circuit, described MOS driving circuit is connected with described buck topological circuit, described temperature sensing circuit and described atomizer are all connected with described buck topological circuit, described MOS driving circuit, temperature sensing circuit are all connected with described MCU with buck topological circuit, and described buck topological circuit, MOS driving circuit, temperature sensing circuit are all connected with described power circuit with MCU.In the present embodiment, the atomizer in electronic cigarette adopts Ni200 heating wire, utilizes the stable hot temperature coefficient of Ni200 heating wire itself to carry out thermometric.
Wherein, described power circuit comprises battery, LDO mu balanced circuit and pump pressure circuit, described buck topological circuit, LDO mu balanced circuit are connected with described battery respectively with pump pressure circuit, described LDO mu balanced circuit is connected with described MCU, 3V burning voltage is provided for giving described MCU, described pump pressure circuit is connected with described MOS driving circuit, provides 5V burning voltage for giving described MOS driving circuit and temperature sensing circuit.
As shown in Figure 2, described LDO mu balanced circuit comprises linear voltage stabilization chip U5, electric capacity C50, electric capacity C51 and electric capacity C52, No. 3 pins of described Voltage Cortrol chip U5 are connected with described anode, No. 1 pin ground connection, No. 2 pins externally export 3V voltage, No. 3 of described linear voltage stabilization chip U5 are connected by described electric capacity C50 between pin with ground, voltage for providing battery carries out filtering, described electric capacity C51 and electric capacity C52 is connected in parallel on No. 2 of described Voltage Cortrol chip U5 between pin and ground, for carrying out filtering to the output voltage of linear voltage stabilization chip U5.Here the model of linear voltage stabilization chip U5 is the chip such as HM6206 or HT7530 or HT7133-1.Certainly above-mentioned several model is not limited only to, as long as this function can be realized.
As shown in Figure 3, described pump pressure circuit comprises pump pressure voltage stabilizing chip U3, electric capacity C30, electric capacity C31, electric capacity C32 and electric capacity C33, described electric capacity C31 and electric capacity C32 is connected in parallel on No. 1 of described pump pressure voltage stabilizing chip U3 between pin and ground, No. 2 pin ground connection of pump pressure voltage stabilizing chip U3, No. 4 pins are connected by described electric capacity C33 with No. 6 pins, and No. 5 pins are connected with the positive pole of described battery.The model of the chip of pump pressure voltage stabilizing here U3 is HM3200 or 10A45 or AX4002.Certainly above-mentioned several model is not limited only to, as long as this function can be realized.
As shown in Figure 4, in the present embodiment, described temperature sensing circuit comprises amplification chip U1, constant current tube U8, triode Q10, diode D8, electric capacity C01, electric capacity C02, resistance R80, resistance R01, resistance R02, resistance R03, resistance R04, resistance R07, resistance R010, resistance R011, No. 4 pins of described amplification chip U1 are connected to ground, No. 5 are parallel with described electric capacity C02 and resistance R04 between pin and ground, No. 5 pins are also connected with the negative pole of described diode D8 by described resistance R03, and described resistance R03 is connected with described MCU with the common port of described diode D8, No. 6 pins are connected to ground by described resistance R02, No. 6 in sequential series between pin and ground described resistance R010 and resistance R011, and described resistance R010 is connected with described MCU with the common port of resistance R011, No. 7 pins are connected with No. 6 pins by described resistance R01, No. 8 pins are connected with the output terminal of described pump pressure circuit by described resistance R07, No. 8 pins are also connected to ground by described electric capacity C01, the positive pole of described diode D8 is connected with the collector of described triode Q10 by described constant current tube U8, the base stage of described triode Q10 is connected with described MCU by described resistance R80, the emitter of described triode Q10 is connected with the output terminal of described LDO mu balanced circuit.Here, pressure limiting filter action is played in R03, R04, C02 passage 2 input to amplification chip U1, and passage 2 input voltage avoiding buck topology to export amplification chip U1 when ceiling voltage 6V presses exceedes the supply voltage 5V of amplifier; R01, R02 enough become feedback network; R010, R011 export passage 2 and carry out 1/2 dividing potential drop, in order to avoid the I/O port exceeding described MCU when passage 2 exports 5V voltage maximum permission incoming level 3V; The voltage that D8 prevents buck topological circuit from exporting is added to infringement constant current tube U8 caused to constant current tube U8.For convenience of description, the output voltage that we set buck topological circuit is here Vo, and output current is Io.In real process, first control buck topological circuit not output voltage, the 3V voltage of LDO is added on described constant current tube U8, constant current tube U8 output constant current electric current I n is on the Ni200 heating wire of described atomizer, now, the heating wire of atomizer can produce a voltage Vn, so can calculate the resistance Rn=Vn/In under heating wire normal temperature.Then buck topological circuit output voltage is controlled, heating wire generates heat, calculating now heating wire operating resistance is Vo/Io, because Ni200 heating wire has stable hot temperature coefficient 4500PPm, temperature T=222 × (Vo/Io-Vn/In)/(Vn/In)+20 when we can calculate heating wire work, unit is degree Celsius.
If do not have tobacco tar and dry combustion method time, the temperature meeting super tobacco tar boiling temperature far away of heating wire, by thermometric, we can prevent dry combustion method like this, again because the heating wire heating tobacco tar mode of existing atomizer, one is that heating wire is wrapped on glass fiber rope, tobacco tar is drawn onto on glass fiber rope and is heated by heating wire, two is that the Oil Guide bale of cotton is rolled on heating wire, tobacco tar is drawn onto Oil Guide cotton and is heated by the heating wire of the inside, these two kinds of heating wire type of heating due to the Oil Guide speed of Oil Guide medium be certain, the Oil Guide amount of unit interval is also certain, if we add high-power to heating wire gradually, Ni200 heating wire temperature slowly rises, if continue to add high-power some to certain time, heating wire temperature can be recorded compare and originally sharply rose, we can be decided to be tobacco tar this point voltage and power stage and burn critical point, also tobacco tar can not be made to burn the while of being just slightly less than this point voltage and power stage during later smoking to make atomizer amount of smoke maximum, this point is also just set to optimal match point.So just reach the object of Auto-matching atomizer.
In the present embodiment, the model of described amplification chip U1 is LM2904, LM2904 is a kind of low pressure difference linearity voltage stabilizing integrated amplifier, and rail-to-railly can export, power here with 5V, its output voltage is 5V to the maximum.Described MCU model is PIC16F1508, PIC16F1508 is 20 pin flash memory 8 8-digit microcontrollers, comprises high-performance RISC.Described constant current tube U8 selects CN2420, and steady current is 20mA.Here the cited model of amplification chip U1, the model of MCU and constant current tube model are not for limiting, and everyly can realize above-mentioned functions.
Preferably, described temperature sensing circuit also comprises resistance R05, resistance R06, resistance R08 and electric capacity C03, No. 1 pin of described amplification chip U1 is connected with described MCU, No. 2 pins are connected to ground by described resistance R06, No. 2 pins are also connected with No. 1 pin by described resistance R08, No. 3 pins are connected with the output terminal of described atomizer by described resistance R05, and No. 3 pins are also connected to ground by described electric capacity C03.Here R05, C03 is positive input terminal, main impedance matching and filter action, R06, R08 plays negative feedback, form positive enlargement factor K=1+R08/R06, R07, C01 and RC filtering is formed to supply voltage, the output current Io of described buck topological circuit can be converted to like this, and then obtain output power Po=Vo × Io, so we just can adjust dutycycle D according to actual needs to adjust output voltage Vo, and then realize power adjustment.Such as: if our initialization circuit peak power output is Pm, actual output voltage is V, and setting output voltage is Vo, we adjust according to following relation when adjusting dutycycle: if V is less than V0 and P0 is less than Pm, tune up dutycycle; If V is greater than V0 or P0 and is greater than Pm, turn dutycycle down.Such power controls both to have realized power protection also can realize constant power output: if PO is less than Pm, then can realizes setting voltage Vo constant voltage and export, realize power protection; If the output power PO=VoxV0/RL that the voltage V0 of setting and the load RL of output calculates is greater than Pm, that no longer exports Vo with constant voltage, exports a constant power output Pm.
As shown in Figure 5, described MOS driving circuit comprises triode Q5, triode Q6, triode Q7, triode Q8, resistance R44 and resistance R45, the emitter of described triode Q5 is connected with the emitter of described triode Q6, and the common port of the two is connected with the PWM output terminal of described MCU, the collector of described triode Q7 is connected with the collector of described triode Q8, and the common port of the two is connected with the input end of described buck topological circuit, the collector of described triode Q5 is connected with the base stage of described triode Q7, the collector of described triode Q6 is connected with the base stage of described triode Q8, the emitter of described triode Q7 is connected with the output terminal of described pump pressure circuit, the emitter of described triode Q8 is connected to ground, between described resistance R44 and the resistance R45 output terminal at described pump pressure circuit in sequential series and ground, the base stage of described triode Q5 is connected with the base stage of described triode Q6, and the common port of the two is connected with the common port of described resistance R44 and resistance R45.By described MOS driving circuit, conducting and the shutoff of metal-oxide-semiconductor can be accelerated, improve power-efficient; Powered by 5V, reduce MOS conducting resistance, strengthen MOS through-current capability thus improve whole circuit peak power output.
Preferably, described MOS driving circuit also comprises PWM negater circuit, the input end of described PWM negater circuit is connected with the PWM output terminal of described MCU, the output terminal of described PWM negater circuit is connected with the emitter of described triode Q5, described PWM negater circuit comprises triode Q9, resistance R46, resistance R47, resistance R48 and electric capacity C48, the collector of described triode Q9 is connected with the emitter of described triode Q5, the collector of described triode Q9 is connected to the output terminal of pump pressure circuit by R46, the emitter of described triode Q9 is connected to ground, described resistance R47 and electric capacity C48 is connected with in turn between the base stage of described triode Q9 and the PWM output terminal of described MCU, the common port of described resistance R47 and electric capacity C48 is by described resistance R48 ground connection.By described PWM negater circuit, electric capacity C48 plays the effect every straight-through friendship, it and R47, R48 effectively can make passing through of 160KPWM signal and make dutycycle reach 80%, also make to only have MCU normally to work PWM when exporting, effectively conducting and the shutoff of MOS ability, when avoiding MCU to crash, its PWM delivery outlet is random state and causes the permanent conducting of MOS and burn, thus avoids battery may bring safety hazard because of heavy-current discharge time long.
As shown in Figure 6, described buck topological circuit comprises inductance L 1, inductance L 2, resistance R41, resistance R42, electric capacity C41, electric capacity C45, electric capacity C46, metal-oxide-semiconductor U2, diode D5 and current sampling resistor R09, described electric capacity C45 and electric capacity C46 is in parallel, and one of described electric capacity C45 and electric capacity C46 in sequential seriesly between common port and ground has described inductance L 1 and electric capacity C41, described inductance L 1 is connected with described anode with the common port of electric capacity C41, described electric capacity C45 is connected with the positive pole of described diode D5 with the other end of electric capacity C46, in sequential series by described resistance R41 and resistance R42 between the negative pole of described diode D5 and ground, the negative pole of described diode D5 is connected with the input end of described atomizer with the common port of described resistance R41, the output terminal of described atomizer passes through described resistance R09 ground connection, 1 of described metal-oxide-semiconductor, 2, No. 3 pins ground connection respectively, No. 4 pins are connected with the output terminal of described MOS driving circuit, and 5, 6, 7, No. 8 pins are connected with the common port of electric capacity C45 with described inductance L 1 respectively.Here, buck topological circuit is primarily of inductance L 1, inductance L 2, electric capacity C45, and electric capacity C46, metal-oxide-semiconductor U2, diode D5 complete buck conversion, and C41 is input filter, and C42, C44 are output filtering, and resistance R41, resistance R42 are that output voltage detects.The output voltage that we set buck topological circuit is Vo, input voltage is Vi, the dutycycle of described PWM ripple is D, then can obtain Vo=Vi × D/ (1-D) according to electricity theory, the dutycycle of PWM is regulated by MCU, get final product regulation output voltage very easily, and then adjust output power and find out peak power output point, to make shown atomizer amount of smoke maximum.
In the present embodiment, the model of described metal-oxide-semiconductor U2 is HM4430.HM4430 is N raceway groove low pressure field effect transistor, and cut-in voltage is lower.Certainly, be not the restriction to metal-oxide-semiconductor signal here, as long as set function can be realized.
Preferably, the negative pole that described buck topological circuit also comprises electric capacity C42 for filtering and electric capacity C44, described diode D5 is connected to ground respectively by described electric capacity C42 and electric capacity C44.By described electric capacity C42 and electric capacity C44, can filtering be carried out the voltage exported and reduce electromagnetic interference (EMI).
Preferably, described buck topological circuit also comprises voltage stabilizing diode Z1 and voltage stabilizing diode Z2, and No. 4 of described metal-oxide-semiconductor are connected in turn by described voltage stabilizing diode Z1 and voltage stabilizing diode Z2 between pin with ground.Prevent NMOS from being punctured by ESD by described voltage stabilizing diode Z1 and voltage stabilizing diode Z2 to the input pressure limiting of the G pole of NMOS tube.
Preferably, one of the present utility model high-power output MCU regulating circuit also comprises battery voltage detection circuit, and the input end of described battery voltage detection circuit is connected with described battery, and output terminal is connected with described MCU.Can the voltage of Real-Time Monitoring battery by described battery voltage detection circuit, so just can know the real time electrical quantity of battery.
As shown in Figure 7, in the present embodiment, described battery voltage detection circuit comprises resistance R3, resistance R6 and electric capacity C6, in sequential series between the both positive and negative polarity of described battery have described resistance R3 and resistance R6, described resistance R3 is connected with the negative pole of described battery by described electric capacity C6 with the common port of resistance R6, and the negative pole of described battery is connected to ground.
As shown in Figure 8, preferably, a kind of electronic cigarette Auto-matching temperature control circuit of the present utility model also comprises USB charge management circuit, and described USB charge management circuit is connected with described MCU and battery respectively, for giving the charging of described battery by USB interface.Described USB charge management circuit comprises charging chip U7, electric capacity C7, resistance R70 and USB interface, No. 1 pin and No. 5 pins of described charging chip U7 are connected to described MCU respectively, No. 2 pin ground connection, No. 3 pins are connected with the positive pole of described battery, No. 4 pins are by described electric capacity C70 ground connection, and the common port of the two is respectively with the output terminal of pump pressure circuit with the+5V pin of USB interface is public is connected, No. 2 pins are connected by described resistance R7 with No. 6 pins.Here, charging chip U7 selects PS3033 or XT2055 or SX5058.Certainly above-mentioned several model is not limited only to, as long as this function can be realized.
A kind of electronic cigarette Auto-matching temperature control circuit of the present utility model, by described temperature-control circuit, the heating wire works temperature remained constant of electronic smoke atomizer can be made, effectively prevent heating wire dry combustion method and tobacco tar from burning, and preventing from finding out peak power output point to make this atomizer amount of smoke maximum under dry combustion method and the prerequisite of burning by calibration in advance.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. an electronic cigarette Auto-matching temperature control circuit, it is characterized in that: comprise buck topological circuit, MOS driving circuit, MCU, atomizer, temperature sensing circuit and power circuit, described MOS driving circuit is connected with described buck topological circuit, described temperature sensing circuit and described atomizer are all connected with described buck topological circuit, described MOS driving circuit, temperature sensing circuit are all connected with described MCU with buck topological circuit, and described buck topological circuit, MOS driving circuit, temperature sensing circuit are all connected with described power circuit with MCU.
2. a kind of electronic cigarette Auto-matching temperature control circuit according to claim 1, it is characterized in that: described power circuit comprises battery, LDO mu balanced circuit and pump pressure circuit, described buck topological circuit, LDO mu balanced circuit are connected with described battery respectively with pump pressure circuit, described LDO mu balanced circuit is connected with described MCU, voltage is provided for giving described MCU, described pump pressure circuit is connected with described MOS driving circuit, provides voltage for giving described MOS driving circuit and temperature sensing circuit.
3. a kind of electronic cigarette Auto-matching temperature control circuit according to claim 2, it is characterized in that: described temperature sensing circuit comprises amplification chip U1, constant current tube U8, triode Q10, diode D8, electric capacity C01, electric capacity C02, resistance R80, resistance R01, resistance R02, resistance R03, resistance R04, resistance R07, resistance R010, resistance R011, No. 4 pins of described amplification chip U1 are connected to ground, No. 5 are parallel with described electric capacity C02 and resistance R04 between pin and ground, No. 5 pins are also connected with the negative pole of described diode D8 by described resistance R03, and described resistance R03 is connected with described MCU with the common port of described diode D8, No. 6 pins are connected to ground by described resistance R02, No. 6 in sequential series between pin and ground described resistance R010 and resistance R011, and described resistance R010 is connected with described MCU with the common port of resistance R011, No. 7 pins are connected with No. 6 pins by described resistance R01, No. 8 pins are connected with the output terminal of described pump pressure circuit by described resistance R07, No. 8 pins are also connected to ground by described electric capacity C01, the positive pole of described diode D8 is connected with the collector of described triode Q10 by described constant current tube U8, the base stage of described triode Q10 is connected with described MCU by described resistance R80, the emitter of described triode Q10 is connected with the output terminal of described LDO mu balanced circuit.
4. a kind of electronic cigarette Auto-matching temperature control circuit according to claim 3, it is characterized in that: described temperature sensing circuit also comprises resistance R05, resistance 06, resistance R08 and electric capacity C03, No. 1 pin of described amplification chip U1 is connected with described MCU, No. 2 pins are connected to ground by described resistance R06, No. 2 pins are also connected with No. 1 pin by described resistance R08, No. 3 pins are connected with the output terminal of described atomizer by described resistance R05, and No. 3 pins are also connected to ground by described electric capacity C03.
5. a kind of electronic cigarette Auto-matching temperature control circuit according to claim 2, it is characterized in that: described MOS driving circuit comprises triode Q5, triode Q6, triode Q7, triode Q8, resistance R44 and resistance R45, the emitter of described triode Q5 is connected with the emitter of described triode Q6, and the common port of the two is connected with the PWM output terminal of described MCU, the collector of described triode Q7 is connected with the collector of described triode Q8, and the common port of the two is connected with the input end of described buck topological circuit, the collector of described triode Q5 is connected with the base stage of described triode Q7, the collector of described triode Q6 is connected with the base stage of described triode Q8, the emitter of described triode Q7 is connected with the output terminal of described pump pressure circuit, the emitter of described triode Q8 is connected to ground, between described resistance R44 and the resistance R45 output terminal at described pump pressure circuit in sequential series and ground, the base stage of described triode Q5 is connected with the base stage of described triode Q6, and the common port of the two is connected with the common port of described resistance R44 and resistance R45.
6. a kind of electronic cigarette Auto-matching temperature control circuit according to claim 5, it is characterized in that: described MOS driving circuit also comprises PWM negater circuit, the input end of described PWM negater circuit is connected with the PWM output terminal of described MCU, the output terminal of described PWM negater circuit is connected with the emitter of described triode Q5, described PWM negater circuit comprises triode Q9, resistance R46, resistance R47, resistance R48 and electric capacity C48, the collector of described triode Q9 is connected with the emitter of described triode Q5, the collector of described triode Q9 is connected to the output terminal of pump pressure circuit by R46, the emitter of described triode Q9 is connected to ground, described resistance R47 and electric capacity C48 is connected with in turn between the base stage of described triode Q9 and the PWM output terminal of described MCU, the common port of described resistance R47 and electric capacity C48 is by described resistance R48 ground connection.
7. a kind of electronic cigarette Auto-matching temperature control circuit according to claim 2, is characterized in that: described buck topological circuit comprises inductance L 1, inductance L 2, resistance R41, resistance R42, electric capacity C41, electric capacity C45, electric capacity C46, metal-oxide-semiconductor U2, diode D5 and current sampling resistor R09, described electric capacity C45 and electric capacity C46 is in parallel, and one of described electric capacity C45 and electric capacity C46 in sequential seriesly between common port and ground has described inductance L 1 and electric capacity C41, described inductance L 1 is connected with described anode with the common port of electric capacity C41, described electric capacity C45 is connected with the positive pole of described diode D5 with the other end of electric capacity C46, in sequential series by described resistance R41 and resistance R42 between the negative pole of described diode D5 and ground, the negative pole of described diode D5 is connected with the input end of described atomizer with the common port of described resistance R41, the output terminal of described atomizer passes through described resistance R09 ground connection, 1 of described metal-oxide-semiconductor, 2, No. 3 pins ground connection respectively, No. 4 pins are connected with the output terminal of described MOS driving circuit, and 5, 6, 7, No. 8 pins are connected with the common port of electric capacity C45 with described inductance L 1 respectively.
8. a kind of electronic cigarette Auto-matching temperature control circuit according to any one of claim 2 to 7, it is characterized in that: also comprise battery voltage detection circuit, the input end of described battery voltage detection circuit is connected with described battery, output terminal is connected with described MCU, described battery voltage detection circuit comprises resistance R3, resistance R6 and electric capacity C6, in sequential series between the both positive and negative polarity of described battery have described resistance R3 and resistance R6, described resistance R3 is connected with the negative pole of described battery by described electric capacity C6 with the common port of resistance R6, and the negative pole of described battery is connected to ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520410936.1U CN204667224U (en) | 2015-06-15 | 2015-06-15 | A kind of electronic cigarette Auto-matching temperature control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520410936.1U CN204667224U (en) | 2015-06-15 | 2015-06-15 | A kind of electronic cigarette Auto-matching temperature control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204667224U true CN204667224U (en) | 2015-09-23 |
Family
ID=54137586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520410936.1U Expired - Fee Related CN204667224U (en) | 2015-06-15 | 2015-06-15 | A kind of electronic cigarette Auto-matching temperature control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204667224U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105955094A (en) * | 2015-12-25 | 2016-09-21 | 深圳瀚星翔科技有限公司 | Power regulation control circuit of electronic cigarette |
| WO2017075883A1 (en) * | 2015-11-06 | 2017-05-11 | 昂纳自动化技术（深圳）有限公司 | Temperature control system for electronic cigarette |
| WO2017096512A1 (en) * | 2015-12-07 | 2017-06-15 | 深圳麦克韦尔股份有限公司 | Electronic cigarette and heating and atomization control method therefor |
| CN108420117A (en) * | 2018-05-14 | 2018-08-21 | 顺德职业技术学院 | A kind of electronic cigarette controller based on DC low-voltage electromagnetic heating technique |
| CN108720084A (en) * | 2017-04-13 | 2018-11-02 | 深圳市赛尔美电子科技有限公司 | The control system and control method of electronic smoking set |
| CN109689142A (en) * | 2016-07-08 | 2019-04-26 | 莱战略控股公司 | Radio frequency for aerosol delivery equipment is to direct current transducer |
| CN110613168A (en) * | 2019-09-24 | 2019-12-27 | 深圳睿蚁科技有限公司 | Organic cotton heating wire |
| CN108420117B (en) * | 2018-05-14 | 2024-04-23 | 顺德职业技术学院 | Electronic cigarette controller based on direct-current low-voltage electromagnetic heating technology |
-
2015
- 2015-06-15 CN CN201520410936.1U patent/CN204667224U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017075883A1 (en) * | 2015-11-06 | 2017-05-11 | 昂纳自动化技术（深圳）有限公司 | Temperature control system for electronic cigarette |
| WO2017096512A1 (en) * | 2015-12-07 | 2017-06-15 | 深圳麦克韦尔股份有限公司 | Electronic cigarette and heating and atomization control method therefor |
| CN105955094A (en) * | 2015-12-25 | 2016-09-21 | 深圳瀚星翔科技有限公司 | Power regulation control circuit of electronic cigarette |
| CN105955094B (en) * | 2015-12-25 | 2019-03-08 | 深圳瀚星翔科技有限公司 | A kind of electronic cigarette power regulation control circuit |
| CN109689142A (en) * | 2016-07-08 | 2019-04-26 | 莱战略控股公司 | Radio frequency for aerosol delivery equipment is to direct current transducer |
| CN109689142B (en) * | 2016-07-08 | 2022-06-07 | 莱战略控股公司 | Radio frequency to direct current converter for aerosol delivery device |
| CN108720084A (en) * | 2017-04-13 | 2018-11-02 | 深圳市赛尔美电子科技有限公司 | The control system and control method of electronic smoking set |
| CN108420117A (en) * | 2018-05-14 | 2018-08-21 | 顺德职业技术学院 | A kind of electronic cigarette controller based on DC low-voltage electromagnetic heating technique |
| CN108420117B (en) * | 2018-05-14 | 2024-04-23 | 顺德职业技术学院 | Electronic cigarette controller based on direct-current low-voltage electromagnetic heating technology |
| CN110613168A (en) * | 2019-09-24 | 2019-12-27 | 深圳睿蚁科技有限公司 | Organic cotton heating wire |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204667224U (en) | A kind of electronic cigarette Auto-matching temperature control circuit | |
| CN205196989U (en) | Electronic cigarette | |
| CN107072312A (en) | Whether tobacco tar exhausts in a kind of detection electronic cigarette method and a kind of electronic cigarette | |
| CN204742632U (en) | Electronic cigarette | |
| CN104348192B (en) | A kind of electronic cigarette USB charger | |
| CN204790671U (en) | Electron cigarette heating power stable control circuit | |
| CN209546934U (en) | Invariable power anti-dry electronic cigarette | |
| CN203481855U (en) | Portable power supply device | |
| CN103701183B (en) | Multi-branch circuit feedback charger circuit and charging method | |
| CN203377513U (en) | Frequency conversion control cabinet automatically adjusting temperature | |
| CN205160397U (en) | High -pressure linear stabilized power supply of online integrated integration | |
| CN207707307U (en) | A kind of control circuit for heater and smoking set | |
| CN205160107U (en) | Control circuit of adapter | |
| CN205646887U (en) | A ambient temperature regulating circuit for charger | |
| CN206237163U (en) | A kind of voltage-stabilizing output circuit | |
| CN203340093U (en) | Intelligent far-end voltage-stabilized type POE (power over Ethernet) system | |
| CN208386120U (en) | Current foldback circuit with foldback circuit | |
| CN208142903U (en) | The charger control circuit of function is mended with output line | |
| CN203645543U (en) | Programmable wide-input voltage-stabilized power supply based on operational amplifiers | |
| CN204652219U (en) | A kind of high-power output MCU regulating circuit | |
| CN204677481U (en) | Fan control device | |
| CN201904731U (en) | Power-supply circuit for power transformer | |
| CN207010586U (en) | DC motor control circuit based on thermistor | |
| CN208673165U (en) | A kind of flue-cured tobacco temperature control circuit | |
| CN213305023U (en) | Overcurrent protection device for mobile phone charger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20160615 |