阅读说明：本技术 用吸力大小控制输出功率的雾化器加热电路及控制方法 (Atomizer heating circuit for controlling output power by using suction force and control method ) 是由 张宁 陈雷 于 2020-12-14 设计创作，主要内容包括：本发明实施例公开了一种用吸力大小控制输出功率的雾化器加热电路及控制方法,所述加热电路包括：可变电容、吸力检测电路、数模转换电路及恒功率输出电路,所述吸力检测电路输入端与所述可变电容电连接,所述吸力检测电路的输出端与所述数模转换电路的输入端电连接,所述数模转换电路的输出端与恒功率输出电路电连接,所述吸力检测电路获取吸力值并确定吸力值的吸力区间数字信号并输出对应的数字信号,所述数模转换电路用于将所述数字信号转换为对应的模拟信号,所述恒功率输出电路用于输出与所述模拟信号相对应的输出功率,通过吸力检测电路检测到的吸力值并转换为对应的模拟信号,进而控制输出功率,可以获得较高的烟雾模拟度提高用户体验。(The embodiment of the invention discloses an atomizer heating circuit and a control method for controlling output power by using suction force, wherein the heating circuit comprises: the suction detection circuit comprises a variable capacitor, a suction detection circuit, a digital-to-analog conversion circuit and a constant power output circuit, wherein the input end of the suction detection circuit is electrically connected with the variable capacitor, the output end of the suction detection circuit is electrically connected with the input end of the digital-to-analog conversion circuit, the output end of the digital-to-analog conversion circuit is electrically connected with the constant power output circuit, the suction detection circuit acquires a suction value and determines a suction interval digital signal of the suction value and outputs a corresponding digital signal, the digital-to-analog conversion circuit is used for converting the digital signal into a corresponding analog signal, the constant power output circuit is used for outputting output power corresponding to the analog signal, the suction value detected by the suction detection circuit is converted into the corresponding analog signal, and then the output power is controlled, so that higher smoke simulation degree can be obtained and user experience is.)

1. The utility model provides an atomizer heating circuit with suction size control output, its characterized in that, atomizer heating circuit with suction size control output includes variable capacitance, suction detection circuitry, digital-to-analog conversion circuit and constant power output circuit, suction detection circuitry input with the variable capacitance electricity is connected, suction detection circuitry's output with digital-to-analog conversion circuit's input electricity is connected, digital-to-analog conversion circuit's output and constant power output circuit electricity are connected, suction detection circuitry acquires the suction value and confirms the suction interval digital signal of suction value and outputs corresponding digital signal, digital-to-analog conversion circuit be used for with digital signal converts corresponding analog signal into, constant power output circuit be used for output with the corresponding output of analog signal.

2. The atomizer heating circuit according to claim 1, wherein the suction force detection circuit comprises a constant value capacitor, a first clock circuit, a second clock circuit, a sampling circuit, a latch circuit and a suction force interval circuit, the suction force interval circuit is electrically connected to an output terminal of the latch circuit and an output terminal of the sampling circuit, an output terminal of the sampling circuit is connected to an input terminal of the latch circuit, an input terminal of the sampling circuit is electrically connected to an output terminal of the first clock circuit and an output terminal of the second clock circuit, respectively, an input terminal of the first clock circuit is electrically connected to the constant value capacitor, an input terminal of the second clock circuit is electrically connected to the variable capacitor, the latch circuit is configured to latch an initial suction force value when the suction force is zero after a preset time of power-on reset, and the sampling circuit is configured to determine a suction force value at a current time, the first clock circuit is used for converting the capacitance value of the fixed capacitor into a first clock cycle, the second clock circuit is used for converting the capacitance value of the variable capacitor into a second clock cycle, and the suction interval circuit is used for determining a suction interval digital signal of the suction value at the current moment and outputting a corresponding digital signal.

3. The atomizer heating circuit for controlling output power based on the amount of suction force of claim 2 wherein said latch circuit is electrically connected to a counter.

4. The atomizer heating circuit for controlling output power as claimed in claim 1 wherein said constant power output circuit comprises: the analog-digital conversion circuit comprises an analog-digital conversion circuit, a pulse modulation circuit, a field effect transistor and a load resistor, wherein the output end of the analog-digital conversion circuit is electrically connected with the input end of the pulse modulation circuit, the output end of the pulse modulation circuit is electrically connected with the grid electrode of the field effect transistor, and the drain electrode of the field effect transistor is electrically connected with the load resistor.

5. A method of controlling an atomizer heating circuit for controlling output power by the magnitude of suction, wherein the atomizer heating circuit for controlling output power by the magnitude of suction is the circuit of any one of claims 1 to 4, the method comprising:

acquiring a suction value at the current moment detected by a suction detection circuit;

determining a digital signal corresponding to a preset suction interval according to the suction value at the current moment;

and converting the digital signal into a corresponding analog signal by a digital-to-analog conversion circuit, and controlling the output power of the constant power output circuit by the analog signal.

6. The method of claim 5, wherein the obtaining the current-time suction value detected by the suction detection circuit comprises:

acquiring a second clock cycle of the current moment of the variable capacitor and a first clock cycle of the current moment of the fixed-value capacitor;

and determining the suction value at the current moment by a preset suction value algorithm in the sampling circuit according to the first clock period and the second clock period.

7. The method according to claim 5, wherein the determining the preset suction interval according to the suction value at the current moment corresponds to a digital signal comprises:

determining a suction interval at the current moment according to the suction value at the current moment and the suction interval divided by the preset suction range;

and determining a corresponding digital signal according to the suction interval at the current moment, and outputting the corresponding digital signal in real time.

8. The method of claim 5, wherein controlling the output power of the constant power output circuit with the analog signal further comprises:

and controlling the temperature and smoke of the load resistor according to the output power, wherein the load comprises an atomizer.

Technical Field

The invention relates to the technical field of atomizers, in particular to an atomizer heating circuit for controlling output power by suction and a control method.

Background

The electronic cigarette is an electronic product simulating a cigarette, has the same appearance, smoke, taste and sensation as the cigarette, and simulates real smoking by heating and generating smoke through a preset heating circuit of an atomizer when a smoker feels smoking.

But there is obvious difference in the heating circuit design of present atomizer and during the true smoking, and the main reason lies in that the heating circuit of present atomizer can't produce corresponding temperature and smog according to user's dynamics of sucking for user experience is relatively poor.

Disclosure of Invention

In view of the above, it is necessary to provide a heating circuit and a control method for an atomizer, which control the output power by the amount of suction force.

In a first aspect, there is provided an atomizer heating circuit for controlling output power by suction force, wherein, the atomizer heating circuit for controlling the output power by the suction force comprises a variable capacitor, a suction force detection circuit, a digital-to-analog conversion circuit and a constant power output circuit, the input end of the suction detection circuit is electrically connected with the variable capacitor, the output end of the suction detection circuit is electrically connected with the input end of the digital-to-analog conversion circuit, the output end of the digital-to-analog conversion circuit is electrically connected with the constant power output circuit, the suction force detection circuit acquires the suction force value, determines the digital signal of the suction force interval of the suction force value and outputs the corresponding digital signal, the digital-to-analog conversion circuit is used for converting the digital signals into corresponding analog signals, and the constant power output circuit is used for outputting output power corresponding to the analog signals.

Preferably, the suction detection circuit includes a fixed-value capacitor, a first clock circuit, a second clock circuit, a sampling circuit, a latch circuit, and a suction interval circuit, the suction interval circuit is electrically connected to the output end of the latch circuit and the output end of the sampling circuit, the output end of the sampling circuit is connected to the input end of the latch circuit, the input end of the sampling circuit is electrically connected to the output end of the first clock circuit and the output end of the second clock circuit, respectively, the input end of the first clock circuit is electrically connected to the fixed-value capacitor, the input end of the second clock circuit is electrically connected to the variable capacitor, the latch circuit is configured to latch an initial suction value when suction force is zero after a preset power-on reset time, the sampling circuit is configured to determine a suction value at a current time, and the first clock circuit is configured to convert a capacitance value of the fixed-value capacitor into a first clock cycle, the second clock circuit is used for converting the capacitance value of the variable capacitor into a second clock cycle, and the suction interval circuit is used for determining a suction interval digital signal of the suction value at the current moment and outputting a corresponding digital signal.

Preferably, the latch circuit is electrically connected to the counter.

Preferably, the constant power output circuit includes: the analog-digital conversion circuit comprises an analog-digital conversion circuit, a pulse modulation circuit, a field effect transistor and a load resistor, wherein the output end of the analog-digital conversion circuit is electrically connected with the input end of the pulse modulation circuit, the output end of the pulse modulation circuit is electrically connected with the grid electrode of the field effect transistor, and the drain electrode of the field effect transistor is electrically connected with the load resistor.

In a second aspect, there is provided a method for controlling an atomizer heating circuit for controlling output power according to magnitude of suction force, wherein the atomizer heating circuit for controlling output power according to magnitude of suction force is any one of the above first and preferred circuits, and the method comprises:

acquiring a suction value at the current moment detected by a suction detection circuit;

determining a digital signal corresponding to a preset suction interval according to the suction value at the current moment;

and converting the digital signal into a corresponding analog signal by a digital-to-analog conversion circuit, and controlling the output power of the constant power output circuit by the analog signal.

In an alternative embodiment, the obtaining the current-time suction value detected by the suction detection circuit includes:

acquiring a second clock cycle of the current moment of the variable capacitor and a first clock cycle of the current moment of the fixed-value capacitor;

and determining the suction value at the current moment by a preset suction value algorithm in the sampling circuit according to the first clock period and the second clock period.

In an optional implementation manner, the determining, according to the suction value at the current time, a digital signal corresponding to a preset suction interval includes:

determining a suction interval at the current moment according to the suction value at the current moment and the suction interval divided by the preset suction range;

and determining a corresponding digital signal according to the suction interval at the current moment, and outputting the corresponding digital signal in real time.

In an optional implementation, the controlling the output power of the constant power output circuit with the analog signal further includes:

and controlling the temperature and smoke of the load resistor according to the output power, wherein the load comprises an atomizer.

The embodiment of the invention has the following beneficial effects:

the embodiment of the invention discloses an atomizer heating circuit for controlling output power by suction and a control method thereof, wherein the atomizer heating circuit for controlling output power by suction comprises a variable capacitor, a suction detection circuit, a digital-to-analog conversion circuit and a constant power output circuit, the input end of the suction detection circuit is electrically connected with the variable capacitor, the output end of the suction detection circuit is electrically connected with the input end of the digital-to-analog conversion circuit, the output end of the digital-to-analog conversion circuit is electrically connected with the constant power output circuit, the suction detection circuit acquires a suction value and determines a suction interval digital signal of the suction value and outputs a corresponding digital signal, the digital-to-analog conversion circuit is used for converting the digital signal into a corresponding analog signal, and the constant power output circuit is used for outputting output power corresponding to the analog signal, through the suction value that utilizes suction detection circuitry to detect and convert the analog signal that corresponds into, and then control output can obtain higher smog analog degree, promotes the user experience to atomizer and the product including this atomizer.

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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

FIG. 1 is a schematic diagram of an atomizer heating circuit with output power controlled by suction force according to an embodiment of the present invention;

FIG. 2 is a flow chart of a method of controlling an atomizer heating circuit using suction to control output power in accordance with an embodiment of the present invention;

FIG. 3 is a schematic diagram of a suction detection circuit in an atomizer heating circuit for controlling output power according to the magnitude of suction in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a constant power output circuit in an atomizer heating circuit for controlling output power by using suction force according to an embodiment of the present invention.

Detailed Description

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.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an atomizer heating circuit for controlling output power by suction force according to an embodiment of the present invention, the atomizer heating circuit using the suction force to control the output power comprises a variable capacitor, a suction force detection circuit, a digital-to-analog conversion circuit and a constant power output circuit, the input end of the suction detection circuit is electrically connected with the variable capacitor, the output end of the suction detection circuit is electrically connected with the input end of the digital-to-analog conversion circuit, the output end of the digital-to-analog conversion circuit is electrically connected with the constant power output circuit, the suction force detection circuit acquires the suction force value and determines the digital signal of the suction force interval of the suction force value and outputs the corresponding digital signal, the digital-to-analog conversion circuit is used for converting the digital signals into corresponding analog signals, and the constant power output circuit is used for outputting output power corresponding to the analog signals.

Referring to fig. 2, fig. 2 is a flowchart illustrating a method for controlling a heating circuit of an atomizer to control output power according to an embodiment of the present invention, the method comprising:

step 201, obtaining a suction value at the current moment detected by a suction detection circuit;

it should be noted that the suction value at the present time is obtained from the change in the capacitance value of the variable capacitor, and the larger the change in the capacitance value of the variable capacitor is, the larger the suction value is generated.

Step 202, determining a digital signal corresponding to a preset suction interval according to the suction value at the current moment;

step 203, converting the digital signal into a corresponding analog signal by a digital-to-analog conversion circuit, and controlling the output power of the constant power output circuit by the analog signal.

It should be noted that the final purpose of obtaining the suction value is to control the output power of the constant power output circuit according to the suction value, so that the suction value needs to be converted into a digital signal which is an acceptable signal form of the digital-to-analog conversion circuit, and the digital-to-analog conversion circuit is used to obtain an analog signal required by the constant power output circuit.

The embodiment of the invention discloses an atomizer heating circuit for controlling output power by suction and a control method thereof, wherein the atomizer heating circuit for controlling output power by suction comprises a variable capacitor, a suction detection circuit, a digital-to-analog conversion circuit and a constant power output circuit, the input end of the suction detection circuit is electrically connected with the variable capacitor, the output end of the suction detection circuit is electrically connected with the input end of the digital-to-analog conversion circuit, the output end of the digital-to-analog conversion circuit is electrically connected with the constant power output circuit, the suction detection circuit acquires a suction value and determines a suction interval digital signal of the suction value and outputs a corresponding digital signal, the digital-to-analog conversion circuit is used for converting the digital signal into a corresponding analog signal, the constant power output circuit is used for outputting output power corresponding to the analog signal, through the suction value that utilizes suction detection circuitry to detect and convert the analog signal that corresponds into, and then control output can obtain higher smog analog degree, promotes the user experience to atomizer and the product including this atomizer.

For better understanding of the embodiment of the present invention, please refer to fig. 3, and fig. 3 is a schematic structural diagram of a suction detection circuit in an atomizer heating circuit for controlling output power according to the embodiment of the present invention.

In an embodiment of the present invention, as shown in fig. 3, the suction detecting circuit includes a constant capacitor, a first clock circuit, a second clock circuit, a sampling circuit, a latch circuit, and a suction interval circuit, the suction interval circuit is electrically connected to an output terminal of the latch circuit and an output terminal of the sampling circuit, an output terminal of the sampling circuit is connected to an input terminal of the latch circuit, input terminals of the sampling circuit are electrically connected to an output terminal of the first clock circuit and an output terminal of the second clock circuit, respectively, an input terminal of the first clock circuit is electrically connected to the constant capacitor, an input terminal of the second clock circuit is electrically connected to the variable capacitor, the latch circuit is configured to latch an initial suction value when the suction force is zero after a preset power-on reset time, the sampling circuit is configured to determine a current suction value, and the first clock circuit is configured to convert a capacitance value of the constant capacitor into a first clock cycle, the second clock circuit is used for converting the capacitance value of the variable capacitor into a second clock cycle, and the suction interval circuit is used for determining a suction interval digital signal of the current suction value and outputting a corresponding digital signal.

Wherein, step 201 includes:

acquiring a second clock cycle of the current moment of the variable capacitor and a first clock cycle of the current moment of the fixed-value capacitor;

and determining the suction value at the current moment by a preset suction value algorithm in the sampling circuit according to the first clock period and the second clock period.

The variable capacitor is an external capacitor having a variable capacitance value, and the fixed capacitor is an internal capacitor having a fixed capacitance value, which may be called a reference capacitor.

In the embodiment of the present invention, the two capacitors are respectively connected to two clock circuits:

the variable capacitor is connected to a second clock circuit to generate a second clock cycle:

where T2 is the second clock cycle, C1 is the current variable capacitance value, vh is the reference voltage one, vl is the reference voltage two, and I0 is the reference current.

It is understood that the first clock cycle T1 generated by the constant value capacitor can be obtained by a similar method, and only C1 in the above formula needs to be replaced by the constant value C0, which is not described herein.

And calculating the suction value at the current moment by using a sampling circuit electrically connected with the clock circuit:

wherein, the suction value calculation formula is as follows:

wherein N is a suction value.

It should be noted that a preset suction range is stored in the suction interval circuit, and the preset suction range is determined by an initial suction value and a maximum suction value.

The latch circuit is electrically connected with the counter.

It is understood that the initial suction value N0 is the value of N in the case where the calculated suction is 0, and is obtained by latching the value of N Y ms after POR, which means power-on reset.

The maximum suction value is the maximum suction value preset in the suction range of the suction interval circuit, is determined by the maximum capacitance value provided by the selected variable capacitor, and can be set according to needs.

Wherein, step 202, further comprises:

determining a suction interval at the current moment according to the suction value at the current moment and the suction interval divided by the preset suction range;

and determining a corresponding digital signal according to the suction interval at the current moment, and outputting the corresponding digital signal in real time.

It should be noted that, in order to accurately obtain the magnitude of the suction force, the suction force interval corresponding to the preset suction force range may be 16, 32 or 64 segments, which is illustrated as 16 segments herein, and is not limited by the example.

It is understood that the suction value N is T2/T1 is C1/C0, i.e., C1 is N C0;

therefore, when the attraction force is zero, the capacitance value of the variable capacitor at the present time is: c1 ═ N0 ═ C0;

when the attraction force is generated, the capacitance value of the variable capacitor at the current moment is: c1 ═ N × C0;

the capacitance value variation of the variable capacitance can be obtained: Δ C1 ═ (N-N0) C0;

it can be understood that if the value of N-N0 is larger, then the capacitance change of C1 is larger, which proves that the attraction force is larger, and to further sense the attraction force change, we further divide the attraction force range into 16 sections, each section corresponds to a digital signal, please refer to the following example:

if N < N0+ M0, the digital signal is dataout equal to 0;

if N0+ M0 ═ N < N0+ M1, then the digital signal is dataout ═ 1;

if N0+ M1 ═ N < N0+ M2, then the digital signal is dataout ═ 2;

if N0+ M2 ═ N < N0+ M3, then the digital signal is dataout ═ 3;

if N0+ M3 ═ N < N0+ M4, then the digital signal is dataout ═ 4;

if N0+ M4 ═ N < N0+ M5, then the digital signal is dataout ═ 5;

if N0+ M5 ═ N < N0+ M6, then the digital signal is dataout ═ 6;

if N0+ M6 ═ N < N0+ M7, then the digital signal is dataout ═ 7;

if N0+ M7 ═ N < N0+ M8, then the digital signal is dataout ═ 8;

if N0+ M8 ═ N < N0+ M9, then the digital signal is dataout ═ 9;

if N0+ M9 ═ N < N0+ M10, then the digital signal is dataout ═ 10;

if N0+ M10 ═ N < N0+ M11, then the digital signal is dataout ═ 11;

if N0+ M11 ═ N < N0+ M12, then the digital signal is dataout ═ 12;

if N0+ M12 ═ N < N0+ M13, then the digital signal is dataout ═ 13;

if N0+ M13 ═ N < N0+ M14, then the digital signal is dataout ═ 14;

if N > is N0+ M14, the digital signal dataout is 15.

And the capacitance value of the variable capacitor changes: Δ C1 ═ Ma × C0, where a ═ dataout.

The above-mentioned determination process of the digital signal is for better understanding of the embodiments of the present invention, and is only exemplary and not limited to specific embodiments.

In the embodiment of the present invention, the digital-to-analog conversion circuit, i.e. the DAC circuit, converts the digital signal dataout corresponding to the suction interval into an analog signal to control the output power of the constant power output circuit, where the analog signal may be a voltage and a current, and the voltage signal is taken as an example to describe the digital-to-analog conversion:

wherein Vref is Vref0+ dataout V0;

wherein, Vref is analog signal, Vref0 is preset value, which can be selected and preset according to practical situation, dataout is digital signal corresponding to suction interval, V0 is fixed voltage, and V0 determines LSB of DAC circuit output voltage, which can be selected to be 10mv, 20mv, etc.

The analog signal value corresponding to the digital signal can be obtained through the above embodiments, and the above examples are only examples and are not limited to specific details.

For better understanding of the embodiments of the present invention, please refer to fig. 4, in which fig. 4 is a schematic structural diagram of a constant power output circuit in an atomizer heating circuit using suction force to control output power.

In an embodiment of the present invention, as shown in fig. 4, the constant power output circuit includes: the digital-to-analog converter comprises an analog-to-digital conversion circuit, a pulse modulation circuit, a field effect transistor and a load resistor, wherein the output end of the analog-to-digital conversion circuit is electrically connected with the input end of the pulse modulation circuit, the output end of the pulse modulation circuit is electrically connected with the grid electrode of the field effect transistor, and the drain electrode of the field effect transistor is electrically connected with the load resistor.

It should be noted that the constant power output circuit is composed of an analog-to-digital conversion circuit ADC, a pulse modulation circuit PWM, a field effect transistor mosfet, and a load resistor Rload; the mosfet can be selected from PMOS or NMOS, and the embodiment of the present invention is explained by taking PMOS as an example:

wherein, the voltage Vout at the two ends of the load resistor is the output voltage, and the output power P is:

vout is an output voltage, Rload is a resistance of a load resistor, Vout0 is the Vout when mosfet is turned on, and Vout is 0 when mosfet is turned off.

Therefore, AVG (Vout × Vout) (Vout0 × Vout0) (D)_Vout) Wherein D is_VoutDuty cycle of Vout;

the output power can be expressed as:

referring to the output power calculation formula derived from the above formula, it can be understood that as long as (Vout0 Vout0) (D) is ensured_Vout) Constant power output can be guaranteed for a constant value, wherein the ADC circuit in the circuit detects the size of (Vout0 Vout0), the larger the value of (Vout0 Vout0), the larger the ADC output data is, and the output data is connected to the PWM circuitWhen the data is larger, D is enabled_VoutThe smaller, the more (Vout0 Vout0) (D) can be ensured_Vout) Is a constant value.

Wherein, data is N (1-K Vref/(Vout0 Vout 0));

(D_Vout)＝1-data/N；

thus, it is possible to obtain (D)_Vout)＝K*Vref*Vref/(Vout0*Vout0)，

Thus output power

Can be changed intoTo obtain the final output power calculation formula.

Through the final output power calculation formula obtained in the conversion process, the fact that only K or Vref is needed to be changed when the output power is required to be changed can be known, the value of K is determined by the inside of a circuit, the value of Vref is determined by external input, and the Vref can be adjusted according to actual requirements.

In the embodiment of the invention, the Vref is adjusted through the suction detection result to control the output power, and the larger the suction is, the larger the data is, the larger the Vref is, and the larger the output power P is.

data＝f(ΔC1)；

Wherein, the data is a nonlinear function of Δ C1, and is selected according to actual needs.

In this embodiment of the present invention, step 203 is followed by:

and controlling the temperature and smoke of the load resistor according to the output power, wherein the load comprises an atomizer.

It will be appreciated that when determining the output power at the present time, control of the amount of mist from the atomiser may be achieved by that power.

The embodiment of the invention discloses an atomizer heating circuit and a control method for controlling output power by using suction force, the atomizer heating circuit using the suction force to control the output power comprises a variable capacitor, a suction force detection circuit, a digital-to-analog conversion circuit and a constant power output circuit, the input end of the suction detection circuit is electrically connected with the variable capacitor, the output end of the suction detection circuit is electrically connected with the input end of the digital-to-analog conversion circuit, the output end of the digital-to-analog conversion circuit is electrically connected with the constant power output circuit, the suction force detection circuit acquires the suction force value and determines the digital signal of the suction force interval of the suction force value and outputs the corresponding digital signal, the digital-to-analog conversion circuit is used for converting the digital signals into corresponding analog signals, and the constant power output circuit is used for outputting output power corresponding to the analog signals. The suction value detected by the suction detection circuit is converted into a corresponding analog signal, so that the output power is controlled, higher smoke simulation degree can be obtained, the user experience of the atomizer and a product comprising the atomizer is improved, the voltage at two ends of the load is detected by the analog-to-digital conversion circuit to regulate and control the constant power output circuit, and the constant power output is realized.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a non-volatile computer-readable storage medium, and can include the processes of the embodiments of the methods described above when the program is executed. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.