CN112716060A - Electronic cigarette heating control circuit and method, integrated circuit and electronic cigarette - Google Patents
Electronic cigarette heating control circuit and method, integrated circuit and electronic cigarette Download PDFInfo
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- CN112716060A CN112716060A CN202110106844.4A CN202110106844A CN112716060A CN 112716060 A CN112716060 A CN 112716060A CN 202110106844 A CN202110106844 A CN 202110106844A CN 112716060 A CN112716060 A CN 112716060A
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- 239000003571 electronic cigarette Substances 0.000 title claims abstract description 113
- 238000010438 heat treatment Methods 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 80
- 230000003750 conditioning effect Effects 0.000 claims description 26
- 239000003990 capacitor Substances 0.000 claims description 22
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 26
- 238000010586 diagram Methods 0.000 description 10
- 241000208125 Nicotiana Species 0.000 description 7
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 7
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- 230000001276 controlling effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229960002715 nicotine Drugs 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- 230000004044 response Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
- A24F40/57—Temperature control
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
- A24F40/51—Arrangement of sensors
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- Control Of Temperature (AREA)
Abstract
The invention discloses an electronic cigarette heating control circuit, an electronic cigarette heating control method, an integrated circuit and an electronic cigarette, and relates to the technical field of electronics. The electronic cigarette heating control circuit comprises a signal acquisition module and a control module; the output end of the signal acquisition module is connected with the input end of the control module; the signal acquisition module is used for receiving a detection signal input by an external detection sensor, generating a reference signal according to the detection signal and transmitting the reference signal to the control module; and the control module is used for generating a driving signal according to the reference signal and transmitting the driving signal to the electronic cigarette heating circuit so that the electronic cigarette heating circuit heats according to the driving signal. The electronic cigarette heating control system can adjust the driving signal for controlling the electronic cigarette heating circuit according to the detection signal input by the external detection sensor, thereby realizing flexible control of electronic cigarette heating and realizing accurate control of temperature.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to an electronic cigarette heating control circuit, an electronic cigarette heating control method, an integrated circuit and an electronic cigarette.
Background
The electronic cigarette adopts the whole process of the microelectronic technology simulation smoking, and the tobacco tar is atomized by an electric heating mode to generate smoke and be enjoyed by smokers. Wherein, the tobacco tar is the most important component of the electronic cigarette, and the main components of the tobacco tar comprise glycerin, propylene glycol, nicotine and essence. When the tobacco tar is heated, if the temperature is too high, the tobacco tar can generate trace acrolein, the use experience can be influenced by the increase of the emission amount of the acrolein, and the harm to the environment and the human health is caused. If the temperature is too low, the tobacco tar atomization will be insufficient, and the smoking experience will be affected. Therefore, how to accurately control the heating temperature is an urgent technical problem to be solved.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide an electronic cigarette heating control circuit, an electronic cigarette heating control method, an integrated circuit and an electronic cigarette, and aims to solve the technical problem that the heating temperature cannot be accurately controlled in the prior art.
In order to achieve the above object, the present invention provides an electronic cigarette heating control circuit, which includes a signal acquisition module and a control module; the output end of the signal acquisition module is connected with the input end of the control module;
the signal acquisition module is used for receiving a detection signal input by an external detection sensor, generating a reference signal according to the detection signal and transmitting the reference signal to the control module;
and the control module is used for generating a driving signal according to the reference signal and transmitting the driving signal to the electronic cigarette heating circuit so that the electronic cigarette heating circuit heats according to the driving signal.
Optionally, the signal acquisition module includes a first acquisition module, a second acquisition module and a signal summarizing module; the output end of the first acquisition module is connected with the first input end of the signal summarizing module; the output end of the second acquisition module is connected with the second input end of the signal summarizing module; the output end of the signal collecting module is connected with the input end of the control module;
the first acquisition module is used for receiving a first detection signal input by a first external detection sensor, generating a first acquisition signal according to the first detection signal and transmitting the first acquisition signal to the signal summarizing module;
the second acquisition module is used for receiving a second detection signal input by a second external detection sensor, generating a second acquisition signal according to the second detection signal and transmitting the second acquisition signal to the signal summarizing module;
and the signal summarizing module is used for generating a reference signal according to the first acquisition signal and the second acquisition signal and transmitting the reference signal to the control module.
Optionally, the first acquisition module includes a first amplifier, a first resistor, a second resistor, a third resistor, and a fourth resistor;
the first end of the first resistor is connected with the positive input end of the first amplifier and the first end of the second resistor respectively, the second end of the second resistor is connected with the output end of the first amplifier, the first end of the third resistor is connected with a first preset power supply, the second end of the third resistor is connected with the negative input end of the first amplifier and the first end of the fourth resistor respectively, the second end of the fourth resistor is grounded, and the output end of the first amplifier is connected with the first input end of the signal summarizing module; the second end of the first resistor is connected with the output end of the first external detection sensor.
Optionally, the signal summing module includes a second amplifier, a fifth resistor, a sixth resistor, and a seventh resistor; the first end of a fifth resistor is connected with the output end of the first acquisition module, the second end of the fifth resistor is respectively connected with the positive input end of the second amplifier and the first end of a seventh resistor, the first end of a sixth resistor is connected with the output end of the second acquisition module, the second end of the sixth resistor is respectively connected with the positive input end of the second amplifier and the first end of the seventh resistor, the second end of the seventh resistor is connected with the output end of the second amplifier, the negative input end of the second amplifier is grounded, and the output end of the second amplifier is connected with the input end of the control module.
Optionally, the control module includes a signal conditioning module and a driving signal generating module, an input end of the signal conditioning module is connected with an output end of the signal collecting module, and an output end of the signal conditioning module is connected with an input end of the driving signal generating module;
the signal adjusting module is used for adjusting the reference signal to obtain an adjusting signal and transmitting the adjusting signal to the driving signal generating module;
and the driving signal generating module is used for generating a driving signal according to the adjusting signal and transmitting the driving signal to the electronic cigarette heating circuit so that the electronic cigarette heating circuit heats according to the driving signal.
Optionally, the signal conditioning module includes a PID conditioning circuit, an input end of the PID conditioning circuit is connected to an output end of the signal acquisition module, and an output end of the PID conditioning circuit is connected to an input end of the driving signal generation module;
and the PID regulating circuit is used for carrying out signal conversion on the reference signal to obtain a regulating signal and transmitting the regulating signal to the driving signal generating module.
Optionally, the driving signal generating module includes a third amplifier, a timer, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a first capacitor, and a second capacitor; the first end of an eighth resistor is connected with the output end of the signal conditioning module, the second end of the eighth resistor is respectively connected with the positive input end of a third amplifier, the first end of a ninth resistor and the first end of a tenth resistor, the first end of the ninth resistor is connected with a second preset power supply, the second end of the tenth resistor is connected with the output end of a third amplifier, the negative input end of the third amplifier is connected, the output end of the third amplifier is respectively connected with the first end of an eleventh resistor, the power supply end and the reset end of a timer, the second end of the eleventh resistor is connected with the first end of a twelfth resistor, the second end of the twelfth resistor is connected with the first end of a first capacitor, the second end of the first capacitor is grounded, the discharge end of the timer is connected with the second end of the eleventh resistor, the trigger end of the timer is connected with the first end of a threshold value end of a uniform first capacitor, and the control end of the timer is connected with the first end of a second capacitor, the second end of the second capacitor is grounded, the grounding end of the timer is grounded, and the output end of the timer is connected with the electronic cigarette heating circuit.
In order to achieve the above object, the present invention further provides an electronic cigarette heating control method, where the electronic cigarette heating control method is applied to the electronic cigarette heating control circuit described above, the electronic cigarette heating control circuit includes a signal acquisition module and a control module, and the electronic cigarette heating control method includes the following steps:
the signal acquisition module receives a detection signal input by an external detection sensor, generates a reference signal according to the detection signal and transmits the reference signal to the control module;
the control module generates a driving signal according to the reference signal and transmits the driving signal to the electronic cigarette heating circuit so that the electronic cigarette heating circuit heats according to the driving signal.
To achieve the above object, the present invention further provides an integrated circuit, which includes a substrate and the electronic cigarette heating control circuit as described above disposed on the substrate.
In order to achieve the above object, the present invention further provides an electronic cigarette, which includes the above integrated circuit, or performs the above electronic cigarette heating control method.
In the invention, a signal acquisition module and a control module are arranged to form an electronic cigarette heating control circuit; the output end of the signal acquisition module is connected with the input end of the control module; the signal acquisition module is used for receiving a detection signal input by an external detection sensor, generating a reference signal according to the detection signal and transmitting the reference signal to the control module; and the control module is used for generating a driving signal according to the reference signal and transmitting the driving signal to the electronic cigarette heating circuit so that the electronic cigarette heating circuit heats according to the driving signal. The electronic cigarette heating control system can adjust the driving signal for controlling the electronic cigarette heating circuit according to the detection signal input by the external detection sensor, thereby realizing flexible control of electronic cigarette heating and realizing accurate control of temperature.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic circuit structure diagram of a first embodiment of an electronic cigarette heating control circuit according to the present invention;
figure 2 is a schematic circuit diagram of a second embodiment of the electronic cigarette heating control circuit of the present invention;
FIG. 3 is a schematic circuit diagram of a signal acquisition module according to an embodiment of the present invention;
figure 4 is a schematic circuit diagram of a third embodiment of the electronic cigarette heating control circuit of the present invention;
FIG. 5 is a schematic circuit diagram of a driving signal generating module according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating a heating control method for an electronic cigarette according to a first embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| 100 | Signal acquisition module | VCC1～VCC3 | First to third field |
|
| 1001 | First acquisition | B | Timer | |
| 1002 | Second acquisition module | Vcc | |
|
| 1003 | Signal summarizing module | | Reset terminal | |
| 200 | Control module | | Discharge terminal | |
| 2001 | Signal conditioning module | | Trigger terminal | |
| 2001 | Drive signal generation module | TH | Threshold terminal | |
| A1～A4 | First to fourth amplifiers | CO | Control terminal | |
| R1～R16 | First to sixteenth resistors | GND | Grounding terminal | |
| C1～C2 | First to second capacitors | OUT | Output end | |
| D1～D2 | First to second diodes |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should be considered to be absent and not within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic circuit structure diagram of a first embodiment of the electronic cigarette heating control circuit of the present invention.
As shown in fig. 1, in the present embodiment, the electronic cigarette heating control circuit includes a signal acquisition module 100 and a control module 200; the output end of the signal acquisition module 100 is connected with the input end of the control module 200; the signal acquisition module 100 is configured to receive a detection signal input by an external detection sensor, generate a reference signal according to the detection signal, and transmit the reference signal to the control module 200. And the control module 200 is configured to generate a driving signal according to the reference signal, and transmit the driving signal to the electronic cigarette heating circuit, so that the electronic cigarette heating circuit heats according to the driving signal.
The external detection sensor may be an acrolein gas sensor, a gas pressure sensor, or the like. The acrolein gas sensor can be used for detecting the content of acrolein in gas, the content of the acrolein can change along with the change of heating temperature, if the temperature is too high, smoke can generate trace acrolein, the increase of the emission of the acrolein can influence the use experience, and the harm is caused to the environment and the human health. Atmospheric pressure sensor can be used to detect the atomizing steam concentration, and atomizing steam concentration can reflect the degree of atomization of tobacco tar, if atomizing steam concentration is not enough, then can the electron cigarette taste become astringent, and user experience is not good. The external detection sensor can be arranged at an outlet of the electronic cigarette atomizer so as to detect gas generated by heating the electronic cigarette; the detection signal is transmitted to the signal acquisition module 100, and the detection signal may be a voltage signal. Of course, the external detection sensor may be another sensor, and the present embodiment is not limited thereto.
It can be understood that the electronic cigarette heating circuit drives the atomizer in the electronic cigarette to work by supplying power to the atomizer. The electronic cigarette heating circuit enables the atomizer to work under different powers by adjusting the power supply voltage.
In particular implementations, the drive signal may be a PWM signal. Generally, the voltage regulation of the electronic cigarette heating circuit is controlled by a driving signal, and a power management chip in the electronic cigarette heating circuit receives the PWM signal, thereby outputting different power supply voltages. The electronic cigarette heating circuit has a mature and stable circuit structure, is not in the improved scope of the invention, and is not described herein.
It should be noted that the reference signal may be a voltage signal, which may be used to reflect a difference between the detection signal and a preset reference value. For example, the preset reference value may be a maximum value of the content of acrolein, a minimum value or a maximum value of the concentration of the mist. The signal acquisition module 100 performs preprocessing such as filtering and amplification on the detection to obtain a reference signal, which is used for the control module 200 to generate a corresponding driving signal.
In the first embodiment, an electronic cigarette heating control circuit is formed by arranging a signal acquisition module and a control module; the output end of the signal acquisition module is connected with the input end of the control module; the signal acquisition module is used for receiving a detection signal input by an external detection sensor, generating a reference signal according to the detection signal and transmitting the reference signal to the control module; and the control module is used for generating a driving signal according to the reference signal and transmitting the driving signal to the electronic cigarette heating circuit so that the electronic cigarette heating circuit heats according to the driving signal. The embodiment can adjust the driving signal for controlling the electronic cigarette heating circuit according to the detection signal input by the external detection sensor, thereby realizing flexible control of electronic cigarette heating and realizing accurate control of temperature.
Referring to fig. 2, fig. 2 is a schematic circuit structure diagram of a second embodiment of the electronic cigarette heating control circuit according to the present invention. Based on the first embodiment, a second embodiment of the electronic cigarette heating control circuit of the invention is provided.
In the second embodiment, the signal acquiring module 100 includes a first acquiring module 1001, a second acquiring module 1002, and a signal summarizing module 1003; the output end of the first acquisition module 1001 is connected with the first input end of the signal summarizing module 1003; the output end of the second acquisition module 1002 is connected with the second input end of the signal summarizing module 1003; the output end of the signal summarizing module 1003 is connected with the input end of the control module 200.
The first collecting module 1001 is configured to receive a first detection signal input by a first external detection sensor, generate a first collecting signal according to the first detection signal, and transmit the first collecting signal to the signal summarizing module 1003. The second collecting module 1002 is configured to receive a second detection signal input by a second external detection sensor, generate a second collecting signal according to the second detection signal, and transmit the second collecting signal to the signal summarizing module 1003. The signal summarizing module 1003 is configured to generate a reference signal according to the first acquisition signal and the second acquisition signal, and transmit the reference signal to the control module 200.
In order to control the temperature more comprehensively, in the present embodiment, two acquisition modules are provided in the signal acquisition module 100, and the internal circuit structures of the acquisition modules are substantially the same, so as to acquire data of a plurality of sensors. Of course, the number of the acquisition modules may be set as required, and this embodiment is not limited thereto.
The first external detection sensor may be an acrolein gas sensor, and the second external detection sensor may be a gas pressure sensor. Of course, the first external detection sensor and the second external detection sensor may be other sensors, which is not limited in this embodiment.
Referring to fig. 3, fig. 3 is a schematic circuit structure diagram of an embodiment of a signal acquisition module of an electronic cigarette heating control circuit according to the present invention.
In this embodiment, the first acquisition module 1001 includes a first amplifier a1, a first resistor R1, a second resistor R2, a third resistor R3, and a fourth resistor R4; a first end of the first resistor R1 is connected to a positive input terminal of the first amplifier a1 and a first end of the second resistor R2, a second end of the second resistor R2 is connected to an output terminal of the first amplifier a1, a first end of the third resistor R3 is connected to the first preset power VCC1, a second end of the third resistor R3 is connected to a negative input terminal of the first amplifier a1 and a first end of the fourth resistor R4, a second end of the fourth resistor R4 is grounded, and an output terminal of the first amplifier a1 is connected to the first input terminal 1003 of the signal summing module; a second terminal of the first resistor R1 is connected to an output terminal of the first external detection sensor.
It is understood that VCC1 is a reference voltage for representing an ideal value for the first external detection sensor to detect the object. For example, when the first external detection sensor is an acrolein gas sensor, the optimum value of the acrolein content may be set to 0.01 μ g/ml or 0 for health, and the voltage of VCC1 may be set to a corresponding value, such as 1V or 0V.
The first collecting signal output by the output end of the first amplifier is a differential signal between the first detection signal and the reference voltage signal, which can be used for reflecting the difference between the actual detection value and the reference value. The difference is used for generating a subsequent driving signal, so that the heating temperature of the electronic cigarette can be set at the set temperature.
In this embodiment, the second acquisition module 1002 and the first acquisition module 1001 have the same circuit structure. As shown in fig. 3, the second acquisition module 1002 includes a fourth amplifier a4, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, and a sixteenth resistor R16; a first end of a thirteenth resistor R13 is connected to a positive input terminal of the fourth amplifier a4 and a first end of a fourteenth resistor R14, a second end of the fourteenth resistor R14 is connected to an output terminal of the fourth amplifier a4, a first end of a fifteenth resistor R15 is connected to a third preset power VCC3, a second end of the fifteenth resistor R15 is connected to a negative input terminal of the fourth amplifier a4 and a first end of a sixteenth resistor R16, a second end of the sixteenth resistor R16 is grounded, and an output terminal of the fourth amplifier a4 is connected to the first input terminal of the signal summing module 1003; a second end of the thirteenth resistor R13 is connected to the output terminal of the first external detection sensor.
The principle of the second acquisition module 1002 is the same as that of the first acquisition module, and is not described herein again. The voltage value of the third preset power VCC3 is set as necessary with reference to the detection object of the second external detection sensor, and this embodiment does not limit it.
In this embodiment, the signal summing module 1003 includes a second amplifier a2, a fifth resistor R5, a sixth resistor R6, and a seventh resistor R7; a first end of a fifth resistor R5 is connected to the output end of the first acquisition module 1001, a second end of the fifth resistor R5 is connected to the positive input end of the second amplifier a2 and the first end of the seventh resistor R7, a first end of a sixth resistor R6 is connected to the output end of the second acquisition module 1002, a second end of a sixth resistor R6 is connected to the positive input end of the second amplifier a2 and the first end of the seventh resistor R7, a second end of the seventh resistor R7 is connected to the output end of the second amplifier a2, the negative input end of the second amplifier a2 is grounded, and the output end of the second amplifier a2 is connected to the input end of the control module 200.
It will be appreciated that in order to be compatible with the detection of multiple targets simultaneously, the detection signals need to be summed. In this embodiment, the first collected signal and the second collected signal are added to obtain a total collected signal, and the total collected signal is transmitted to the control module 200 as a reference signal.
Meanwhile, in order to ensure the safety of the second amplifier a2, a first diode D1 and a second diode D2 are disposed between the positive input terminal and the negative input terminal of the second amplifier a2, and the two diodes clamp the input and output voltages.
In a second embodiment, the signal acquisition module is provided with a plurality of acquisition modules and a signal summarizing module for combining signals. This embodiment can realize the detection to a plurality of objects simultaneously, detect acrolein content and mist concentration like the while to adjust the temperature of electron cigarette more comprehensively, stabilize heating temperature at the set value.
Referring to fig. 4, fig. 4 is a schematic circuit structure diagram of a third embodiment of the electronic cigarette heating control circuit of the present invention. Based on the first embodiment and the second embodiment, a third embodiment of the electronic cigarette heating control circuit of the present invention is proposed. The present embodiment is explained based on the first embodiment.
In the third embodiment, the control module 200 includes a signal conditioning module 2001 and a driving signal generating module 2002, an input terminal of the signal conditioning module 2001 is connected to an output terminal of the signal acquiring module 100, and an output terminal of the signal conditioning module 2001 is connected to an input terminal of the driving signal generating module 2002. The signal adjusting module 2001 is configured to adjust the reference signal to obtain an adjusting signal, and transmit the adjusting signal to the driving signal generating module 2002. And the driving signal generating module 2002 is configured to generate a driving signal according to the adjustment signal, and transmit the driving signal to the electronic cigarette heating circuit, so that the electronic cigarette heating circuit heats according to the driving signal.
In order to facilitate subsequent signal processing, in the present embodiment, the reference signal is adjusted before the driving signal is generated. For example, the adjustable process may include voltage regulation, filtering, etc.; the adjusted signal is more convenient to be clear, and noise is eliminated.
In order to make the temperature regulation faster and more stable, a PID regulation is introduced in the present embodiment. In specific implementation, the signal conditioning module 2001 includes a PID conditioning circuit, an input end of the PID conditioning circuit is connected to an output end of the signal acquisition module 100, and an output end of the PID conditioning circuit is connected to an input end of the driving signal generation module 2002; and the PID adjusting circuit is configured to perform signal conversion on the reference signal to obtain an adjusting signal, and transmit the adjusting signal to the driving signal generating module 2002.
It will be appreciated that the PID control circuit can provide proportional, integral and derivative control of the reference signal, thereby reducing the overall control process time, increasing the response speed and improving the dynamic performance of the temperature control. The PID adjusting circuit has a mature and stable circuit structure, and the internal structure thereof is not in the scope of the improvement of the present invention and is not described herein.
Referring to fig. 5, fig. 5 is a schematic circuit structure diagram of a driving signal generating module according to an embodiment of the present invention.
In the present embodiment, the driving signal is a PEM signal, and in order to generate a suitable PWM signal more accurately, the driving signal generating module 2001 includes a third amplifier a3, a timer B, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a first capacitor C1, and a second capacitor C2; a first terminal of an eighth resistor R8 is connected to the output terminal of the signal conditioning module 2001, a second terminal of an eighth resistor R8 is connected to a positive input terminal of a third amplifier A3, a first terminal of a ninth resistor R9 and a first terminal of a tenth resistor R10, respectively, a first terminal of a ninth resistor R9 is connected to a second preset power VCC2, a second terminal of a tenth resistor R10 is connected to an output terminal of the third amplifier A3, a negative input terminal of the third amplifier A3 is connected, an output terminal of the third amplifier A3 is connected to a first terminal of an eleventh resistor R11, a power supply terminal VCC and a reset terminal Rd of the timer B, a second terminal of the eleventh resistor R11 is connected to a first terminal of a twelfth resistor R12, a second terminal of the twelfth resistor R12 is connected to a first terminal of a first capacitor C1, a second terminal of the first capacitor C1 is grounded, a discharge terminal DIS of the timer B is connected to a second terminal of the eleventh resistor R11, a trigger threshold terminal of the timer B is connected to a second terminal of the first capacitor C1, the control end CO of the timer is connected with the first end of the second capacitor C2, the second end of the second capacitor C2 is grounded, the ground end GND of the timer is grounded, and the output end OUT of the timer is connected with the electronic cigarette heating circuit.
It should be noted that the timer may be a 555 timer, and the 555 timer is commonly used as a generator of the PWM signal. In this embodiment, the voltage of the reference voltage input to the 555 timer is changed, and the output PWM signal is changed accordingly, thereby controlling the power supply voltage of the electronic cigarette heating circuit.
The second preset power supply VCC2 is a reference voltage, and when the reference signal is 0, the input voltage of the 555 timer is provided by the second preset power supply VCC 2; as the reference signal is input, the input voltage of the 555 timer may increase or decrease, thereby increasing or decreasing the duty ratio of the PWM signal.
In a third embodiment, the control module includes a signal conditioning module and a drive signal generation module. Before generating the driving signal, the reference signal is adjusted to make the input signal of the driving signal generating module more pure. Specifically, the signal adjusting module can adopt PID adjustment to provide integral adjusting speed; the driving signal generation module is constructed based on the 555 timer, so that the output PWM signal is more stable, and the stability of temperature control is improved.
Referring to fig. 6, fig. 6 is a schematic flow chart of the electronic cigarette heating control method according to the first embodiment of the present invention.
In order to achieve the above object, the present invention further provides an electronic cigarette heating control method, where the electronic cigarette heating control method is applied to the electronic cigarette heating control circuit described above, where the electronic cigarette heating control circuit includes a signal acquisition module and a control module, and the electronic cigarette heating control method includes the following steps:
step S10: the signal acquisition module receives a detection signal input by an external detection sensor, generates a reference signal according to the detection signal and transmits the reference signal to the control module;
step S20: the control module generates a driving signal according to the reference signal and transmits the driving signal to the electronic cigarette heating circuit so that the electronic cigarette heating circuit heats according to the driving signal.
In the first embodiment, an electronic cigarette heating control circuit is formed by arranging a signal acquisition module and a control module; the output end of the signal acquisition module is connected with the input end of the control module; the signal acquisition module is used for receiving a detection signal input by an external detection sensor, generating a reference signal according to the detection signal and transmitting the reference signal to the control module; and the control module is used for generating a driving signal according to the reference signal and transmitting the driving signal to the electronic cigarette heating circuit so that the electronic cigarette heating circuit heats according to the driving signal. The embodiment can adjust the driving signal for controlling the electronic cigarette heating circuit according to the detection signal input by the external detection sensor, thereby realizing flexible control of electronic cigarette heating and realizing accurate control of temperature.
To achieve the above object, the present invention further provides an integrated circuit, which includes a substrate and the electronic cigarette heating control circuit as described above disposed on the substrate. Since the integrated circuit adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here
In order to achieve the above object, the present invention further provides an electronic cigarette, which includes the above integrated circuit, or performs the above electronic cigarette heating control method. Since the electronic cigarette adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The electronic cigarette heating control circuit is characterized by comprising a signal acquisition module and a control module; the output end of the signal acquisition module is connected with the input end of the control module;
the signal acquisition module is used for receiving a detection signal input by an external detection sensor, generating a reference signal according to the detection signal and transmitting the reference signal to the control module;
the control module is used for generating a driving signal according to the reference signal and transmitting the driving signal to the electronic cigarette heating circuit so that the electronic cigarette heating circuit heats according to the driving signal.
2. The electronic cigarette heating control circuit of claim 1, wherein the signal acquisition module comprises a first acquisition module, a second acquisition module, and a signal summing module; the output end of the first acquisition module is connected with the first input end of the signal summarizing module; the output end of the second acquisition module is connected with the second input end of the signal summarizing module; the output end of the signal summarizing module is connected with the input end of the control module;
the first acquisition module is used for receiving a first detection signal input by a first external detection sensor, generating a first acquisition signal according to the first detection signal and transmitting the first acquisition signal to the signal summarizing module;
the second acquisition module is used for receiving a second detection signal input by a second external detection sensor, generating a second acquisition signal according to the second detection signal and transmitting the second acquisition signal to the signal summarizing module;
the signal summarizing module is used for generating the reference signal according to the first acquisition signal and the second acquisition signal and transmitting the reference signal to the control module.
3. The electronic cigarette heating control circuit of claim 2, wherein the first collection module comprises a first amplifier, a first resistor, a second resistor, a third resistor, and a fourth resistor;
a first end of the first resistor is connected with a positive input end of the first amplifier and a first end of the second resistor respectively, a second end of the second resistor is connected with an output end of the first amplifier, a first end of the third resistor is connected with a first preset power supply, a second end of the third resistor is connected with a negative input end of the first amplifier and a first end of the fourth resistor respectively, a second end of the fourth resistor is grounded, and an output end of the first amplifier is connected with a first input end of the signal summarizing module; the second end of the first resistor is connected with the output end of the first external detection sensor.
4. The electronic cigarette heating control circuit of claim 2, wherein the signal summing module comprises a second amplifier, a fifth resistor, a sixth resistor, and a seventh resistor; the first end of the fifth resistor is connected with the output end of the first acquisition module, the second end of the fifth resistor is respectively connected with the positive input end of the second amplifier and the first end of the seventh resistor, the first end of the sixth resistor is connected with the output end of the second acquisition module, the second end of the sixth resistor is respectively connected with the positive input end of the second amplifier and the first end of the seventh resistor, the second end of the seventh resistor is connected with the output end of the second amplifier, the negative input end of the second amplifier is grounded, and the output end of the second amplifier is connected with the input end of the control module.
5. The electronic cigarette heating control circuit of any one of claims 1-4, wherein the control module comprises a signal conditioning module and a driving signal generation module, an input of the signal conditioning module is connected with an output of the signal acquisition module, and an output of the signal conditioning module is connected with an input of the driving signal generation module;
the signal adjusting module is used for adjusting the reference signal to obtain an adjusting signal and transmitting the adjusting signal to the driving signal generating module;
the driving signal generating module is used for generating a driving signal according to the adjusting signal and transmitting the driving signal to the electronic cigarette heating circuit so that the electronic cigarette heating circuit heats according to the driving signal.
6. The electronic cigarette heating control circuit of claim 5, wherein the signal conditioning module comprises a PID conditioning circuit, an input end of the PID conditioning circuit is connected with an output end of the signal acquisition module, and an output end of the PID conditioning circuit is connected with an input end of the driving signal generation module;
and the PID regulating circuit is used for carrying out signal conversion on the reference signal to obtain a regulating signal and transmitting the regulating signal to the driving signal generating module.
7. The electronic cigarette heating control circuit of claim 5, wherein the drive signal generation module comprises a third amplifier, a timer, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a first capacitor, and a second capacitor; a first end of the eighth resistor is connected to an output end of the signal conditioning module, a second end of the eighth resistor is connected to a positive input end of the third amplifier, a first end of the ninth resistor and a first end of the tenth resistor, respectively, a first end of the ninth resistor is connected to a second preset power supply, a second end of the tenth resistor is connected to an output end of the third amplifier, a negative input end of the third amplifier is connected, an output end of the third amplifier is connected to a first end of the eleventh resistor, a power supply end and a reset end of the timer, a second end of the eleventh resistor is connected to a first end of the twelfth resistor, a second end of the twelfth resistor is connected to a first end of the first capacitor, a second end of the first capacitor is grounded, and a discharge end of the timer is connected to a second end of the eleventh resistor, the trigger end and the threshold end of the timer are connected with the first end of the first capacitor, the control end of the timer is connected with the first end of the second capacitor, the second end of the second capacitor is grounded, the grounding end of the timer is grounded, and the output end of the timer is connected with the electronic cigarette heating circuit.
8. An electronic cigarette heating control method is applied to the electronic cigarette heating control circuit according to any one of claims 1-7, the electronic cigarette heating control circuit comprises a signal acquisition module and a control module, and the electronic cigarette heating control method comprises the following steps:
the signal acquisition module receives a detection signal input by an external detection sensor, generates a reference signal according to the detection signal and transmits the reference signal to the control module;
the control module generates a driving signal according to the reference signal and transmits the driving signal to the electronic cigarette heating circuit so that the electronic cigarette heating circuit heats according to the driving signal.
9. An integrated circuit comprising a substrate and the electronic cigarette heating control circuit of any of claims 1-7 disposed on the substrate.
10. An electronic cigarette, characterized in that the electronic cigarette comprises the integrated circuit of claim 9 or performs the electronic cigarette heating control method of claim 8.
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| CN202110106844.4A CN112716060B (en) | 2021-01-26 | 2021-01-26 | Electronic cigarette heating control circuit and method, integrated circuit and electronic cigarette |
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| CN202110106844.4A CN112716060B (en) | 2021-01-26 | 2021-01-26 | Electronic cigarette heating control circuit and method, integrated circuit and electronic cigarette |
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