CN112273731A - Control chip of electronic cigarette silicon microphone with double heating wires and control method thereof - Google Patents
Control chip of electronic cigarette silicon microphone with double heating wires and control method thereof Download PDFInfo
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- CN112273731A CN112273731A CN202011300943.8A CN202011300943A CN112273731A CN 112273731 A CN112273731 A CN 112273731A CN 202011300943 A CN202011300943 A CN 202011300943A CN 112273731 A CN112273731 A CN 112273731A
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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
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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
- A24F40/46—Shape or structure of electric heating means
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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
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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
- A24F40/60—Devices with integrated user interfaces
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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
- A24F40/90—Arrangements or methods specially adapted for charging batteries thereof
Abstract
The application provides an ASIC chip of a silicon microphone of an electronic cigarette and a processing method of the ASIC chip in a smoking process of the electronic cigarette, which comprises the following steps: the electronic cigarette comprises a capacitance detection module, a master control algorithm module and a discharge module, wherein the capacitance detection module is used for obtaining the current capacitance value of a MEMS (micro electro mechanical system) capacitor chip in a silicon microphone of the electronic cigarette, a reduced amount is obtained according to the current capacitance value and the original capacitance value, the master control algorithm module judges whether the reduced amount exceeds a preset capacitance change threshold value, if the reduced amount exceeds the preset capacitance change threshold value, the discharge module is controlled to discharge, and the discharge module heats the tobacco tar of the electronic cigarette in a wide voltage domain through discharging. The detection of the electronic cigarette silicon microphone is more accurate, the smoking feeling is not influenced by the change of voltage when a user uses the electronic cigarette, and the use experience of the electronic cigarette is improved.
Description
Technical Field
The application belongs to the field of electronic cigarettes, and particularly relates to a control chip of a silicon microphone of an electronic cigarette with double heating wires and a control method of the control chip.
Background
The electronic cigarette is an electronic product which is powered by a battery, detects the movement of airflow by an internal detection module or detects the pressure difference of a piezoresistive membrane by a pressure sensor to judge whether the electronic cigarette is in a smoking state at present, and controls current output and a working state by a chip. The heating wire atomizes the tobacco tar into particles which are absorbed by the lung and spit out the simulated smoke at the same time. The electronic cigarette does not contain tar and other harmful substances in the cigarette, does not generate second-hand smoke, and does not diffuse or detour in an enclosed space. Therefore, the number of people using the electronic cigarette is also increasing.
The disposable electronic cigarette products in the prior art are developing towards large smoke and large capacity, and the average service life of the disposable electronic cigarette products is developing from 300 times to 1500 times. Increase and the continuous use of life for the heater of electron cigarette is ageing easily after the repeated heating, and then leads to heater impedance grow to influence the efficiency of generating heat, influences user's smoking impression.
Disclosure of Invention
The embodiment of the invention mainly aims to provide a control chip of a double-heating-wire electronic cigarette silicon microphone and a control method thereof, so that an electronic cigarette can be selectively used between two heating wires, the service life of the heating wires is prolonged, and the use experience of a user on the electronic cigarette is improved.
In a first aspect, a control chip of an electronic cigarette silicon microphone with two heating wires is provided, and the control chip comprises:
the electronic cigarette comprises a capacitance detection module, a master control algorithm module and a discharge module, wherein the capacitance detection module is used for obtaining a current capacitance value of a MEMS (micro electro mechanical system) capacitor chip in an electronic cigarette silicon microphone, a reduced amount is obtained according to the current capacitance value and an original capacitance value, the master control algorithm module judges whether the reduced amount exceeds a preset capacitance change threshold value, if the reduced amount exceeds the preset capacitance change threshold value, a first trigger time of a first heating wire and a second trigger time of a second heating wire are obtained, the discharge module is controlled to discharge according to the relation between the first trigger time, the second trigger time and the preset trigger time threshold value, the discharge module discharges the first heating wire or the second heating wire in a wide voltage domain according to the relation, and the wide voltage domain is 3.0-4.2V.
In one possible implementation, the control chip further includes:
the first display device is used for showing the use state of the first heating wire, and the second display device is used for showing the use state of the second heating wire.
In another possible implementation manner, the discharging module is controlled to discharge according to the relationship between the first trigger time, the second trigger time and the trigger time threshold, specifically:
if the first triggering times are higher than the second triggering times and the times are higher than the triggering times threshold, discharging the second heating wire; alternatively, the first and second electrodes may be,
if the first triggering times are higher than the second triggering times and the times are lower than the triggering time threshold, discharging the first heating wire; alternatively, the first and second electrodes may be,
if the second triggering times are higher than the first triggering times and the times are higher than the triggering times threshold, discharging the first heating wire; alternatively, the first and second electrodes may be,
and if the second triggering times are higher than the first triggering times and the higher times are less than the triggering times threshold, discharging the second heating wire.
In another possible implementation manner, the ASIC chip obtains the capacitance value of the MEMS capacitive chip through the capacitance detection module.
In another possible implementation, the capacitance change threshold is 3%.
In a second aspect, a control method for a double-heating-wire electronic cigarette silicon microphone is provided, and the control method comprises the following steps:
and acquiring the current capacitance value of the MEMS capacitive chip.
And comparing the current capacitance value with the stored original capacitance value of the MEMS capacitive chip to obtain the reduction amount of the capacitance value of the MEMS capacitive chip.
And comparing the reduction amount with a preset capacitance change threshold value, and judging whether the reduction amount exceeds the capacitance change threshold value.
And if the voltage exceeds the preset threshold value, acquiring a first triggering frequency of the first heating wire and a second triggering frequency of the second heating wire, and controlling the discharging module to discharge the first heating wire or the second heating wire in a wide voltage domain according to the relation between the first triggering frequency and the preset threshold value and the relation, wherein the wide voltage domain is 3.0-4.2V.
In another possible implementation manner, the control method further includes:
and displaying the use state of the first heating wire through the first display device, and displaying the use state of the second heating wire through the second display device.
In another possible implementation manner, the discharging module is controlled to discharge according to the relationship between the first trigger time, the second trigger time and the trigger time threshold, specifically:
if the first triggering times are higher than the second triggering times and the times are higher than the triggering times threshold, discharging the second heating wire; alternatively, the first and second electrodes may be,
if the first triggering times are higher than the second triggering times and the times are lower than the triggering time threshold, discharging the first heating wire; alternatively, the first and second electrodes may be,
if the second triggering times are higher than the first triggering times and the times are higher than the triggering times threshold, discharging the first heating wire; alternatively, the first and second electrodes may be,
and if the second triggering times are higher than the first triggering times and the higher times are less than the triggering times threshold, discharging the second heating wire.
In another possible implementation manner, the ASIC chip obtains the capacitance value of the MEMS capacitive chip through the capacitance detection module.
In another possible implementation, the capacitance change threshold is 3%.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments of the present application will be briefly described below.
Fig. 1 is a structural diagram of a control chip of a dual-heating-wire electronic cigarette silicon microphone according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for controlling a silicon microphone of an electronic cigarette with two heating wires according to an embodiment of the present invention.
Detailed description of the invention
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar modules or modules having the same or similar functionality throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, modules, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, modules, components, and/or groups thereof. It will be understood that when a module is referred to as being "connected" or "coupled" to another module, it can be directly connected or coupled to the other module or intervening modules may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any module and all combinations of one or more of the associated listed items.
To make the objectives, technical solutions and advantages of the present application more clear, the following detailed description of the implementations of the present application will be made with reference to the accompanying drawings.
The technical solutions of the present application and the technical solutions of the present application, for example, to solve the above technical problems, will be described in detail with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Example one
Fig. 1 is a structural diagram of a control chip of a dual-heating-wire electronic cigarette silicon microphone according to an embodiment of the present invention, where the control chip includes:
the electronic cigarette comprises a capacitance detection module 1, a master control algorithm module 2 and a discharge module 3, wherein the capacitance detection module 1 is used for obtaining a current capacitance value of a MEMS (micro electro mechanical system) capacitor chip in an electronic cigarette silicon microphone, a reduced amount is obtained according to the current capacitance value and an original capacitance value, the master control algorithm module 2 judges whether the reduced amount exceeds a preset capacitance change threshold value, if the reduced amount exceeds the preset capacitance change threshold value, a first trigger frequency of a first heating wire and a second trigger frequency of a second heating wire are obtained, the discharge module 3 is controlled to discharge according to the relation between the first trigger frequency, the second trigger frequency and the preset trigger frequency threshold value, the discharge module 3 discharges the first heating wire or the second heating wire in a wide voltage domain according to the relation, and the wide voltage domain is 3.0-4.2V.
In the embodiment of the invention, the electronic cigarette silicon microphone mainly comprises: the package comprises a package housing, a Micro Electro Mechanical System (MEMS) capacitor chip, and an Application Specific Integrated Circuit (ASIC) chip, wherein the MEMS capacitor chip and the ASIC chip are electrically connected.
In a specific using process, an original capacitance value is generated when the MEMS capacitor chip is just powered on, the capacitance detection module of the ASIC chip acquires and stores the original capacitance value, when a user smokes or blows through the silicon microphone of the electronic cigarette, the capacitance value of the MEMS capacitor chip is reduced by generated airflow to generate a reduced amount relative to the original capacitance value, the reduced amount is compared with a preset capacitance change threshold value by a main control algorithm module of the ASIC chip, if the reduced amount exceeds the capacitance change threshold value, the user smokes through the silicon microphone of the electronic cigarette, the main control algorithm module acquires a first trigger frequency of a first heating wire and a second trigger frequency of a second heating wire, the heating wire needing to be heated is determined according to the relationship between the first trigger frequency, the second trigger frequency and the trigger frequency threshold value, and the discharging module 3 discharges the determined heating wire, and finishing a complete electronic cigarette smoking process.
The wide voltage domain is a power supply voltage range of the battery, and the value range of the wide voltage domain is usually 3.0V-4.2V.
The controlling the discharging module to discharge according to the relationship between the first triggering time, the second triggering time and the triggering time threshold specifically comprises:
if the first triggering times are higher than the second triggering times and the times are higher than the triggering times threshold value, discharging the second heating wire; alternatively, the first and second electrodes may be,
if the first triggering times are higher than the second triggering times and the higher times are smaller than the triggering times threshold, discharging the first heating wire; alternatively, the first and second electrodes may be,
if the second triggering times are higher than the first triggering times and the times are higher than the triggering times threshold, discharging the first heating wire; alternatively, the first and second electrodes may be,
and if the second triggering times are higher than the first triggering times and the higher times are smaller than the triggering times threshold, discharging the second heating wire.
In the embodiment of the invention, for the electronic cigarette with a plurality of heating wires, in order to prolong the service life of the electronic cigarette as far as possible, the heating wire with less triggering times is firstly used, but the use condition of the heating wire is disordered by frequently replacing the heating wire. Therefore, a triggering time threshold is set in the main control algorithm module: acquiring a difference value between the first triggering time and the second triggering time, and if the difference value is lower than a triggering time threshold value, continuing to use the heating wire with higher triggering time; and if the difference value is higher than the triggering time threshold value, the heating wire with lower triggering time is used.
If the first triggering time is 150 times, the second triggering time is 90 times, and the triggering time threshold is 50 times, discharging the second heating wire when the electronic cigarette is used; if the first triggering time is 120 times, the second triggering time is 90 times, and the triggering time threshold is 50 times, the first heating wire is discharged when the electronic cigarette is used.
The Capacitance detection module mainly obtains a Capacitance value of the MEMS capacitive chip by detecting a change in a RC (Resistor capacitor) time constant. After the MEMS capacitor chip is electrified, the SW end of the ASIC chip is periodically charged and discharged, and an internal counter of the ASIC chip maps the capacitance value of the MEMS capacitor chip by recording the charging and discharging times in unit time. When actions such as smoking or wind blowing occur, the MEMS capacitance is changed by airflow through the electronic cigarette silicon microphone, the charging and discharging times recorded by an internal counter of the ASIC chip in unit time are also changed, and the ASIC chip acquires the reduction amount of the MEMS capacitance.
The main control algorithm module can automatically adapt to the MEMS capacitor chip, namely, whether the MEMS chip is electrified or not is automatically detected, the related capacitance value of the MEMS capacitor chip is automatically detected and stored, and meanwhile, the main control algorithm module can also perform reverse blowing action relative to smoking, so that the safety and the reliability of the electronic cigarette silicon microphone are improved.
The discharge module is mainly composed of a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET), stores a control algorithm for constant-voltage output, and can ensure that the tobacco tar of the electronic cigarette is heated in a wide voltage domain through the action of the control algorithm. After receiving the discharge signal sent by the main control algorithm module, the discharge module detects a voltage signal of the AT end of the ASIC chip, and performs PWM (Pulse width modulation) based modulation on the MOS tube through a feedback mechanism in the discharge module, so that the voltage output by the discharge module is kept stable in a power supply voltage range, and smoking feeling is not influenced by voltage change when a user uses the electronic cigarette.
It should be noted that the capacitance change threshold may be set according to the actual application, and the capacitance change threshold is not limited in the present application. Preferably, the capacitance change threshold is 3%.
In the embodiment of the invention, the ASIC chip obtains the current capacitance value of the MEMS capacitor chip through the capacitance detection module, the current capacitance value is compared with the original capacitance value to obtain the reduction amount of the MEMS capacitor chip, the main control algorithm module judges whether the reduction amount exceeds a preset capacitance change threshold value, if the reduction amount exceeds the preset capacitance change threshold value, smoking behavior is judged to occur, the main control algorithm module controls the discharge module to discharge, and smoke oil of the electronic cigarette is heated through discharging. The detection of the electronic cigarette silicon microphone is more accurate, the smoking feeling of a user can not be influenced due to the change of voltage when the user uses the electronic cigarette, and the use experience of the electronic cigarette is improved.
As an optional embodiment of the present invention, the control chip further includes:
the charging module is used for sequentially charging a lithium battery through three stages of constant voltage, constant current and trickle, and the lithium battery is used for supplying power to the electronic cigarette.
In the embodiment of the invention, the charging module mainly comprises a power MOS tube, a three-section type charging management circuit and a protection circuit, wherein the three-section type charging management circuit can sequentially provide constant voltage, constant current and trickle charging for the lithium battery, and the use safety of the lithium battery can be ensured by a three-section type charging mode.
As another optional embodiment of the present invention, the control chip further includes:
and the protection module is used for stopping the operation of the discharge module when the load current of the ASIC chip exceeds a preset current threshold and/or the temperature of the ASIC chip exceeds a preset temperature threshold.
In the embodiment of the invention, the ASIC chip is also provided with a protection module, the protection module monitors the load current and/or the temperature of the ASIC chip in real time, and when the load current exceeds a preset current threshold and/or the temperature exceeds a preset temperature threshold, the protection module stops the operation of the discharge module, so that the safety of the electronic cigarette and a user is ensured.
The current threshold and the temperature threshold may be set according to actual use requirements, which is not limited in this application. Preferably, the current threshold is 4A, and the temperature threshold is 140 ℃.
As another optional embodiment of the present invention, the control chip further includes:
the first display device is used for showing the use state of the first heating wire, and the second display device is used for showing the use state of the second heating wire.
In the embodiment of the invention, the control chip is provided with the first heating wire state port and the second heating wire state port, and the state of the first heating wire or the second heating wire can be acquired in real time by reading the first heating wire state port or the second heating wire state port. The states of the first heating wire and the second heating wire can be displayed in different display modes of the first display device and the second display device, and a user can know the states of the first heating wire or the second heating wire according to the different display states of the first display device and the second display device.
Example two
Fig. 2 is a flowchart illustrating a method for controlling a silicon microphone of an electronic cigarette with two heating wires according to an embodiment of the present invention, where the method includes:
step S201, a current capacitance value of the MEMS capacitive chip is obtained.
Step S202, comparing the current capacitance value with the stored original capacitance value of the MEMS capacitive chip, and obtaining the reduction amount of the capacitance value of the MEMS capacitive chip.
Step S203, comparing the reduction amount with a preset capacitance change threshold, and determining whether the reduction amount exceeds the capacitance change threshold.
And step S204, if the current value exceeds the preset threshold value, acquiring a first triggering frequency of the first heating wire and a second triggering frequency of the second heating wire, and controlling the discharging module to discharge the first heating wire or the second heating wire in a wide voltage domain according to the relation between the first triggering frequency and the preset threshold value and the relation between the second triggering frequency and the preset threshold value.
In the embodiment of the invention, the electronic cigarette silicon microphone mainly comprises: the package comprises a package housing, a Micro Electro Mechanical System (MEMS) capacitor chip, and an Application Specific Integrated Circuit (ASIC) chip, wherein the MEMS capacitor chip and the ASIC chip are electrically connected.
In a specific using process, an original capacitance value is generated when the MEMS capacitor chip is just powered on, the capacitance detection module of the ASIC chip acquires and stores the original capacitance value, when a user smokes or blows through the silicon microphone of the electronic cigarette, the capacitance value of the MEMS capacitor chip is reduced by generated airflow to generate a reduced amount relative to the original capacitance value, the reduced amount is compared with a preset capacitance change threshold value by a main control algorithm module of the ASIC chip, if the reduced amount exceeds the capacitance change threshold value, the user smokes through the silicon microphone of the electronic cigarette, the main control algorithm module acquires a first trigger frequency of a first heating wire and a second trigger frequency of a second heating wire, the heating wire needing to be heated is determined according to the relationship between the first trigger frequency, the second trigger frequency and the trigger frequency threshold value, and the discharging module 3 discharges the determined heating wire, and finishing a complete electronic cigarette smoking process.
The wide voltage domain is a power supply voltage range of the battery, and the value range of the wide voltage domain is usually 3.0V-4.2V.
The controlling the discharging module to discharge according to the relationship between the first triggering time, the second triggering time and the triggering time threshold specifically comprises:
if the first triggering times are higher than the second triggering times and the times are higher than the triggering times threshold value, discharging the second heating wire; alternatively, the first and second electrodes may be,
if the first triggering times are higher than the second triggering times and the higher times are smaller than the triggering times threshold, discharging the first heating wire; alternatively, the first and second electrodes may be,
if the second triggering times are higher than the first triggering times and the times are higher than the triggering times threshold, discharging the first heating wire; alternatively, the first and second electrodes may be,
and if the second triggering times are higher than the first triggering times and the higher times are smaller than the triggering times threshold, discharging the second heating wire.
In the embodiment of the invention, for the electronic cigarette with a plurality of heating wires, in order to prolong the service life of the electronic cigarette as far as possible, the heating wire with less triggering times is firstly used, but the use condition of the heating wire is disordered by frequently replacing the heating wire. Therefore, a triggering time threshold is set in the main control algorithm module: acquiring a difference value between the first triggering time and the second triggering time, and if the difference value is lower than a triggering time threshold value, continuing to use the heating wire with higher triggering time; and if the difference value is higher than the triggering time threshold value, the heating wire with lower triggering time is used.
If the first triggering time is 150 times, the second triggering time is 90 times, and the triggering time threshold is 50 times, discharging the second heating wire when the electronic cigarette is used; if the first triggering time is 120 times, the second triggering time is 90 times, and the triggering time threshold is 50 times, the first heating wire is discharged when the electronic cigarette is used.
The Capacitance detection module mainly obtains a Capacitance value of the MEMS capacitive chip by detecting a change in a RC (Resistor capacitor) time constant. After the MEMS capacitor chip is electrified, the SW end of the ASIC chip is periodically charged and discharged, and an internal counter of the ASIC chip maps the capacitance value of the MEMS capacitor chip by recording the charging and discharging times in unit time. When actions such as smoking or wind blowing occur, the MEMS capacitance is changed by airflow through the electronic cigarette silicon microphone, the charging and discharging times recorded by an internal counter of the ASIC chip in unit time are also changed, and the ASIC chip acquires the reduction amount of the MEMS capacitance.
The main control algorithm module can automatically adapt to the MEMS capacitor chip, namely, whether the MEMS chip is electrified or not is automatically detected, the related capacitance value of the MEMS capacitor chip is automatically detected and stored, and meanwhile, the main control algorithm module can also perform reverse blowing action relative to smoking, so that the safety and the reliability of the electronic cigarette silicon microphone are improved.
The discharge module is mainly composed of a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET), stores a control algorithm for constant-voltage output, and can ensure that the tobacco tar of the electronic cigarette is heated in a wide voltage domain through the action of the control algorithm. After receiving the discharge signal sent by the main control algorithm module, the discharge module detects a voltage signal of the AT end of the ASIC chip, and performs PWM (Pulse width modulation) based modulation on the MOS tube through a feedback mechanism in the discharge module, so that the voltage output by the discharge module is kept stable in a power supply voltage range, and smoking feeling is not influenced by voltage change when a user uses the electronic cigarette.
It should be noted that the capacitance change threshold may be set according to the actual application, and the capacitance change threshold is not limited in the present application. Preferably, the capacitance change threshold is 3%.
In the embodiment of the invention, the ASIC chip obtains the current capacitance value of the MEMS capacitor chip through the capacitance detection module, the current capacitance value is compared with the original capacitance value to obtain the reduction amount of the MEMS capacitor chip, the main control algorithm module judges whether the reduction amount exceeds a preset capacitance change threshold value, if the reduction amount exceeds the preset capacitance change threshold value, smoking behavior is judged to occur, the main control algorithm module controls the discharge module to discharge, and smoke oil of the electronic cigarette is heated through discharging. The detection of the electronic cigarette silicon microphone is more accurate, the smoking feeling of a user can not be influenced due to the change of voltage when the user uses the electronic cigarette, and the use experience of the electronic cigarette is improved.
As an optional embodiment of the present invention, the control method further comprises:
the electronic cigarette charging method comprises the steps of sequentially charging a lithium battery through three stages of constant voltage, constant current and trickle, wherein the lithium battery is used for supplying power to the electronic cigarette.
In the embodiment of the invention, the ASIC chip also comprises a charging module which mainly comprises a power MOS tube, a three-section charging management circuit and a protection circuit, wherein the three-section charging management circuit can sequentially provide constant voltage, constant current and trickle charge for the lithium battery, and the use safety of the lithium battery can be ensured by a three-section charging mode.
As another alternative embodiment of the present invention, the control method further includes:
the method comprises the steps of acquiring the load current and/or the temperature of an ASIC chip in real time, and stopping the operation of a discharging module when the load current exceeds a preset current threshold and/or the temperature exceeds a preset temperature threshold.
In the embodiment of the invention, the ASIC chip is also provided with a protection module, the protection module monitors the load current and/or the temperature of the ASIC chip in real time, and when the load current exceeds a preset current threshold and/or the temperature exceeds a preset temperature threshold, the protection module stops the operation of the discharge module, so that the safety of the electronic cigarette and a user is ensured.
The current threshold and the temperature threshold may be set according to actual use requirements, which is not limited in this application. Preferably, the current threshold is 4A, and the temperature threshold is 140 ℃.
As an optional embodiment of the present invention, the control method further comprises:
and displaying the use state of the first heating wire through a first display device, and displaying the use state of the second heating wire through a second display device.
In the embodiment of the invention, the control chip is provided with the first heating wire state port and the second heating wire state port, and the state of the first heating wire or the second heating wire can be acquired in real time by reading the first heating wire state port or the second heating wire state port. The states of the first heating wire and the second heating wire can be displayed in different display modes of the first display device and the second display device, and a user can know the states of the first heating wire or the second heating wire according to the different display states of the first display device and the second display device.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The foregoing is only a partial implementation of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a control chip of electron cigarette silicon miaow head of two heating silks which characterized in that, control chip includes:
the electronic cigarette comprises a capacitance detection module, a master control algorithm module and a discharge module, wherein the capacitance detection module is used for obtaining a current capacitance value of a MEMS (micro electro mechanical system) capacitor chip in an electronic cigarette silicon microphone, a reduced amount is obtained according to the current capacitance value and an original capacitance value, the master control algorithm module judges whether the reduced amount exceeds a preset capacitance change threshold value, if the reduced amount exceeds the preset capacitance change threshold value, a first trigger time of a first heating wire and a second trigger time of a second heating wire are obtained, the discharge module is controlled to discharge according to the relation between the first trigger time, the second trigger time and the preset trigger time threshold value, the discharge module discharges the first heating wire or the second heating wire in a wide voltage domain according to the relation, and the wide voltage domain is 3.0V-4.2V.
2. The control chip of claim 1, wherein the control chip further comprises:
the first display device is used for showing the use state of the first heating wire, and the second display device is used for showing the use state of the second heating wire.
3. The control chip according to any one of claims 1 to 2, wherein the controlling the discharging module to discharge according to the relationship between the first trigger time, the second trigger time, and the trigger time threshold specifically includes:
if the first triggering times are higher than the second triggering times and the times are higher than the triggering times threshold value, discharging the second heating wire; alternatively, the first and second electrodes may be,
if the first triggering times are higher than the second triggering times and the higher times are smaller than the triggering times threshold, discharging the first heating wire; alternatively, the first and second electrodes may be,
if the second triggering times are higher than the first triggering times and the times are higher than the triggering times threshold, discharging the first heating wire; alternatively, the first and second electrodes may be,
and if the second triggering times are higher than the first triggering times and the higher times are smaller than the triggering times threshold, discharging the second heating wire.
4. The control chip of any one of claims 1-2, wherein the ASIC chip obtains the capacitance value of the MEMS capacitive chip through a capacitance detection module.
5. The control chip of any one of claims 1 to 2, wherein the capacitance change threshold is 3%.
6. A control method of a double-heating-wire electronic cigarette silicon microphone is characterized by comprising the following steps:
acquiring a current capacitance value of the MEMS capacitive chip;
comparing the current capacitance value with the stored original capacitance value of the MEMS capacitive chip to obtain the reduction amount of the capacitance value of the MEMS capacitive chip;
comparing the reduction amount with a preset capacitance change threshold value, and judging whether the reduction amount exceeds the capacitance change threshold value;
and if the voltage exceeds the preset threshold value, acquiring a first triggering frequency of the first heating wire and a second triggering frequency of the second heating wire, and controlling the discharging module to discharge the first heating wire or the second heating wire in a wide voltage domain according to the relation between the first triggering frequency and the second triggering frequency and a preset triggering frequency threshold value, wherein the wide voltage domain is 3.0V-4.2V.
7. The control method according to claim 6, characterized by further comprising:
and displaying the use state of the first heating wire through a first display device, and displaying the use state of the second heating wire through a second display device.
8. The control method according to any one of claims 6 to 7, wherein the controlling the discharging module to discharge according to the relationship between the first trigger time, the second trigger time, and the trigger time threshold specifically includes:
if the first triggering times are higher than the second triggering times and the times are higher than the triggering times threshold value, discharging the second heating wire; alternatively, the first and second electrodes may be,
if the first triggering times are higher than the second triggering times and the higher times are smaller than the triggering times threshold, discharging the first heating wire; alternatively, the first and second electrodes may be,
if the second triggering times are higher than the first triggering times and the times are higher than the triggering times threshold, discharging the first heating wire; alternatively, the first and second electrodes may be,
and if the second triggering times are higher than the first triggering times and the higher times are smaller than the triggering times threshold, discharging the second heating wire.
9. The control method according to any one of claims 6 to 7, wherein the ASIC chip acquires the capacitance value of the MEMS capacitive chip through a capacitance detection module.
10. A control method according to any one of claims 6 to 7, wherein the capacitance change threshold is 3%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023245926A1 (en) * | 2022-06-24 | 2023-12-28 | 深圳市吉迩科技有限公司 | Method and apparatus for adjusting output power by means of reverse blowing, device and medium |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104106844A (en) * | 2014-06-23 | 2014-10-22 | 深圳市麦克韦尔科技有限公司 | Electronic cigarette controller and electronic cigarette |
| CN104950953A (en) * | 2015-06-09 | 2015-09-30 | 昂纳自动化技术（深圳）有限公司 | Electronic cigarette and temperature control method thereof |
| CN106455703A (en) * | 2015-03-31 | 2017-02-22 | 惠州市吉瑞科技有限公司 | Tobacco tar atomizing method for electronic cigarette and electronic cigarette |
| CN107788579A (en) * | 2016-09-07 | 2018-03-13 | 湖南中烟工业有限责任公司 | A kind of ultrasonic atomizatio electronic cigarette control method and circuit |
| CN108323824A (en) * | 2018-04-27 | 2018-07-27 | 常州市派腾电子技术服务有限公司 | Control method, device and the electronic cigarette of electronic cigarette |
| CN208724902U (en) * | 2018-01-12 | 2019-04-12 | 惠州市吉瑞科技有限公司深圳分公司 | A kind of heating system and its heating component |
| CN110754701A (en) * | 2019-11-27 | 2020-02-07 | 深圳市吉迩科技有限公司 | Electronic cigarette heating control method and device and mixed-smoking electronic cigarette |
| CN111165916A (en) * | 2019-12-20 | 2020-05-19 | 深圳麦克韦尔科技有限公司 | Reminding method of electronic atomization device, electronic atomization device and storage medium |
| US20200187557A1 (en) * | 2012-10-05 | 2020-06-18 | Altria Client Services Llc | Electronic vaping devices |
| WO2020157634A1 (en) * | 2019-01-29 | 2020-08-06 | Rai Strategic Holdings, Inc. | Air pressure sensor for an aerosol delivery device |
-
2020
- 2020-11-19 CN CN202011300943.8A patent/CN112273731B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200187557A1 (en) * | 2012-10-05 | 2020-06-18 | Altria Client Services Llc | Electronic vaping devices |
| CN104106844A (en) * | 2014-06-23 | 2014-10-22 | 深圳市麦克韦尔科技有限公司 | Electronic cigarette controller and electronic cigarette |
| CN106455703A (en) * | 2015-03-31 | 2017-02-22 | 惠州市吉瑞科技有限公司 | Tobacco tar atomizing method for electronic cigarette and electronic cigarette |
| CN104950953A (en) * | 2015-06-09 | 2015-09-30 | 昂纳自动化技术（深圳）有限公司 | Electronic cigarette and temperature control method thereof |
| CN107788579A (en) * | 2016-09-07 | 2018-03-13 | 湖南中烟工业有限责任公司 | A kind of ultrasonic atomizatio electronic cigarette control method and circuit |
| CN208724902U (en) * | 2018-01-12 | 2019-04-12 | 惠州市吉瑞科技有限公司深圳分公司 | A kind of heating system and its heating component |
| CN108323824A (en) * | 2018-04-27 | 2018-07-27 | 常州市派腾电子技术服务有限公司 | Control method, device and the electronic cigarette of electronic cigarette |
| WO2020157634A1 (en) * | 2019-01-29 | 2020-08-06 | Rai Strategic Holdings, Inc. | Air pressure sensor for an aerosol delivery device |
| CN110754701A (en) * | 2019-11-27 | 2020-02-07 | 深圳市吉迩科技有限公司 | Electronic cigarette heating control method and device and mixed-smoking electronic cigarette |
| CN111165916A (en) * | 2019-12-20 | 2020-05-19 | 深圳麦克韦尔科技有限公司 | Reminding method of electronic atomization device, electronic atomization device and storage medium |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023245926A1 (en) * | 2022-06-24 | 2023-12-28 | 深圳市吉迩科技有限公司 | Method and apparatus for adjusting output power by means of reverse blowing, device and medium |
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