CN218245695U

CN218245695U - Electronic atomization device and power regulation circuit

Info

Publication number: CN218245695U
Application number: CN202222101538.4U
Authority: CN
Inventors: 谢锡田; 阳胜
Original assignee: Shenzhen Moore Health Medical Technology Co ltd
Current assignee: Shenzhen Moore Health Medical Technology Co ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2023-01-10
Anticipated expiration: 2032-08-10

Abstract

The application discloses electron atomizing device and power regulating circuit. The power conditioning circuit includes: an atomising sheet for atomising an aerosol-generating substrate; the boosting circuit is coupled with the atomizing sheet and used for outputting working voltage; the atomization driving circuit is coupled between the atomization sheet and the booster circuit and is used for detecting the working current output by the booster circuit; and the control device is coupled with the atomization driving circuit and the booster circuit and used for determining the current power output by the booster circuit based on the working current and the working voltage and regulating the working voltage output by the booster circuit based on the current power so that the current power is regulated to the preset target power, and the consistency of the atomization efficiency of the atomization sheet can be improved.

Description

Electronic atomization device and power regulation circuit

Technical Field

The application relates to the technical field of atomization, in particular to an electronic atomization device and a power regulation circuit.

Background

In electronic atomisation devices, an ultrasonic atomisation blade is often used to atomise the aerosol-generating substrate, which atomises the aerosol-generating substrate into an aerosol by high frequency vibration.

However, the electric core in the electronic atomization device is a constant voltage source and provides a fixed direct current, and the impedance deviation of the atomization sheet produced by the existing process is large, so that the output voltages output to the atomization sheet are different, the atomization powers of the atomization sheet are different, and the atomization rate consistency of the electronic atomization device produced in batch is poor.

In addition, in order to prevent liquid leakage, the electronic atomization device often uses a seal ring to compress the atomization sheet, the compression degree of the seal ring on the atomization sheet is difficult to control consistently, so that impedance parameters of the atomization sheet after installation are changed, the input (output) power of a driving circuit of the same atomization sheet is greatly different under the same working voltage, and the consistency of the output power and the atomization rate of the whole atomization sheet is poor.

SUMMERY OF THE UTILITY MODEL

The application mainly provides an electronic atomization device and a power regulating circuit to solve the problem that the atomization rate consistency of the electronic atomization device is poor.

In order to solve the technical problem, the application adopts a technical scheme that: the power regulating circuit is applied to an electronic atomization device and comprises: an atomising sheet for atomising an aerosol-generating substrate; the boosting circuit is coupled with the atomizing sheet and used for outputting working voltage; the atomization driving circuit is coupled between the atomization sheet and the boost circuit and used for detecting working current output by the boost circuit; and the control device is coupled with the atomization driving circuit and the booster circuit and used for determining the current power output by the booster circuit based on the working current and the working voltage and regulating and controlling the working voltage output by the booster circuit based on the current power so as to adjust the current power to the preset target power.

In an embodiment, the power conditioning circuit further includes a detection circuit, coupled between the boost circuit and the atomization driving circuit, for detecting the operating voltage output by the boost circuit.

In one embodiment, the fog driving circuit includes: the half-wave driving circuit is connected with the booster circuit and receives the working voltage; the sampling unit is connected with the half-wave driving circuit and is used for sampling the working voltage; the first filtering unit is coupled to the half-wave driving circuit, the sampling unit and the control device, and is configured to convert the working voltage into a dc analog voltage, where the working current is determined based on the dc analog voltage.

In one embodiment, the half-wave driving circuit includes: the first end of the first inductor is connected with the booster circuit; a first end of the first capacitor is connected with a second end of the first inductor, and a second end of the first capacitor is connected with the atomization sheet; the driving switch comprises a first end, a second end and a control end, the first end of the driving switch is connected with a first node between the inductor and the capacitor, the second end of the driving switch is connected with the sampling unit and the first filtering unit, and the control end of the driving switch is coupled with the control device and used for receiving a pulse modulation signal output by the control device to regulate and control the frequency of the half-wave driving circuit.

In one embodiment, the sampling unit includes: a first end of the first resistor is connected with the half-wave driving circuit, and a second end of the first resistor is grounded; the first filtering unit includes: a first end of the second resistor is connected with the control device, and a second end of the second resistor is connected with a first end of the first resistor; and one end of the second capacitor is connected with the first end of the second resistor, and the second end of the second capacitor is grounded.

In one embodiment, the atomization driving circuit further includes: a drive unit, the drive unit comprising: a first end of the third resistor is connected with the control device, and a second end of the third resistor is connected with the control end of the driving switch; and a first end of the fourth resistor is connected with a first end of the third resistor, and a second end of the fourth resistor is grounded.

In one embodiment, the boosting circuit includes: the voltage division branch comprises a fifth resistor and a sixth resistor which are connected in series, one end of the fifth resistor, which is far away from the sixth resistor, is connected with a voltage output end, and the voltage output end is used for being coupled with the atomizing sheet; a first pin end of the boost chip is connected with a second node between the fifth resistor and the sixth resistor and is used for providing a reference voltage; and one end of the filtering branch is coupled with the control device, and the other end of the filtering branch is connected to the second node and used for converting the pulse modulation signal output by the control device into a direct current signal.

In an embodiment, the boost circuit further includes a second filtering unit connected in parallel to the voltage dividing branch, wherein one end of the second filtering unit is coupled between the voltage output end and one end of the fifth resistor.

In an embodiment, the voltage boost circuit further comprises a voltage stabilizing branch, and the voltage stabilizing branch is connected between the voltage input end and the voltage output end of the voltage boost circuit.

In an embodiment, the boost circuit further includes a third filtering unit, and one end of the third filtering unit is coupled between the voltage input end and the second pin end of the boost chip.

In order to solve the above technical problem, another technical solution adopted by the present application is: there is provided an electronic atomisation device comprising a power regulating circuit as described in any one of the previous claims.

The beneficial effect of this application is: different from the situation of the prior art, the application discloses an electronic atomization device and a power regulation circuit. The power conditioning circuit comprises an atomising tablet for atomising the aerosol-generating substrate; the boosting circuit is coupled with the atomizing sheet and used for outputting working voltage; the atomization driving circuit is coupled between the atomization sheet and the boost circuit and used for detecting working current output by the boost circuit; and the control device is coupled with the atomization driving circuit and the booster circuit and used for determining the current power based on the working current and the working voltage output by the booster circuit and regulating the working voltage output by the booster circuit based on the current power so that the current power is regulated to the preset target power, and the consistency of the atomization efficiency of the atomization sheet can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present application 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 application, and other drawings can be obtained by those skilled in the art without creative efforts, wherein:

FIG. 1 is a schematic diagram of an embodiment of a power conditioning circuit provided herein;

FIG. 2 is a circuit schematic of an embodiment of the detection circuit shown in FIG. 1;

FIG. 3 is a schematic diagram of an embodiment of the fogging drive circuit shown in FIG. 1;

FIG. 4 is a circuit diagram of the atomization driving circuit and the atomization plate shown in FIG. 3 according to an embodiment;

FIG. 5 is a circuit diagram of another embodiment of the atomization driving circuit and the atomization sheet shown in FIG. 3;

FIG. 6 is a circuit schematic of an embodiment of the boost circuit shown in FIG. 1;

FIG. 7 is a schematic flow chart diagram illustrating an embodiment of a method for regulating a power regulation circuit provided herein;

FIG. 8 is a schematic structural diagram of an embodiment of a storage medium provided herein;

fig. 9 is a schematic structural diagram of an embodiment of an electronic atomization device provided in the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.

The terms "first", "second" and "third" in the embodiments of the present application are used 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," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a power conditioning circuit provided in the present application. The present application provides a power regulating circuit 100, and the power regulating circuit 100 is applied to an electronic atomization device, and is used for making an atomization plate 10 in the electronic atomization device operate under constant atomization power, so as to realize the adjustment and stabilization of the atomization rate and the atomization particle size of the atomization plate 10.

The power conditioning circuit 100 includes an atomizing plate 10, a booster circuit 20, an atomizing drive circuit 30, and a control device 40.

Wherein the atomizing sheet 10 is for atomizing an aerosol-generating substrate to generate an aerosol for use by a user; the boost circuit 20 is coupled to the atomization plate 10 and configured to output atomization power for driving the atomization plate 10 to operate; the atomization driving circuit 30 is coupled between the atomization sheet 10 and the boost circuit 20, and the atomization driving circuit 30 is used for detecting the working current Iout output by the boost circuit 20; the control device 40 is coupled to the atomization driving circuit 30 and the boost circuit 20, and configured to determine a current power P1 output by the boost circuit 20 based on the operating current Iout and an operating voltage Vout output by the boost circuit 20, and regulate the operating voltage Vout output by the boost circuit 20 based on the current power P1, so that the current power P1 output by the boost circuit 20 is adjusted to a preset target power P2.

Specifically, according to the present application, the atomization driving circuit 30 detects the working current Iout flowing through the boost circuit 20, and feeds the working current Iout back to the control device 40, the control device 40 determines the current power P1 output by the boost circuit 20 based on the obtained working voltage Vout and the working current Iout output by the boost circuit 20, and compares the current power P1 with the preset target power P2, and regulates and controls the working voltage Vout output by the boost circuit 20 to adjust the current power P1 to be consistent with the preset target power P2, so that the atomization sheet 10 can stably operate at the preset target power P2, and the atomization efficiency consistency of the atomization sheet 10 is improved, that is, the large atomization power difference of the atomization sheet 10 due to the impedance deviation caused by the production and assembly process can be eliminated, and the atomization sheet 10 can operate at the constant target power P2 without impact caused by power fluctuation, so that performance attenuation of the atomization sheet 10 can be reduced, which is beneficial to improving the service life of the atomization sheet 10.

In this embodiment, the atomization sheet 10 is adapted to operate under ac power, so that the atomization driving circuit 30 is also adapted to convert dc power output from the voltage boosting circuit 20 into ac power. The control device 40 is also used for regulating and controlling the frequency of the atomization driving circuit 30 through the pulse modulation signal PWM to regulate and control the resonant frequency of the atomization sheet 10.

Wherein, atomizing drive circuit 30 can include inverter drive circuit or other circuit components and parts that have the same function, and controlling means 40 can adjust atomizing piece 10 and work under predetermined resonant frequency based on user's setting to can realize the atomizing on different frequency points.

The control device 40 may be an MCU (micro controller Unit), a PCB device or a processor, and the like, which is not particularly limited in this application.

In this embodiment, the power conditioning circuit 100 further includes a detection circuit 50, and the detection circuit 50 is coupled between the voltage boosting circuit 20 and the atomization driving circuit 30 and is configured to detect an operating voltage Vout output by the voltage boosting circuit 20, so that the control device 40 determines the current power P1 output by the voltage boosting circuit 20 based on the operating voltage Vout detected by the detection circuit 50 and an operating current Iout detected by the atomization driving circuit 30.

Referring to FIG. 2, FIG. 2 is a circuit schematic of one embodiment of the detection circuit shown in FIG. 1; the detection circuit 50 may be as shown in fig. 2, and specifically, the detection circuit 50 includes a first detection resistor R _x A second detection resistor R _y And a detection capacitor C, a first detection resistor R _x Is connected between the booster circuit 20 and the atomization driving circuit 30, and a first detection resistor R _x Is connected with the second detection resistor R _y A first terminal and control device 40, a second detection resistor R _y The second terminal of (a) is grounded; the detection capacitor C is connected with the first detection resistor R _x Through the above circuit design, the detection circuit 50 performs voltage division sampling on the working voltage Vout output by the boost circuit 20, and then outputs the working voltage Vout to the control device 40, and the control device 40 further determines the current power P1 output by the boost circuit 20 through the working current Iout detected by the atomization driving circuit 30. In other embodiments, the operating voltage Vout may be obtained directly by the control device 40. It is understood that the detection circuit 50 may be other existing detection circuits, and will not be described in detail herein.

Referring to fig. 3, fig. 3 is a schematic structural diagram of an embodiment of the fogging driving circuit shown in fig. 1. The atomization driving circuit 30 includes a half-wave driving circuit 31, a sampling unit 32, and a first filtering unit 33. The half-wave driving circuit 31 is connected to the boost circuit 20 and is configured to receive the working voltage Vout output by the boost circuit 20; the sampling unit 32 is connected to the half-wave driving circuit 31, and is configured to sample the working voltage Vout output by the voltage boost circuit 20; the first filtering unit 33 is coupled to the half-wave driving circuit 31, the sampling unit 32 and the control device 40, and is configured to convert the working voltage Vout output by the voltage boosting circuit 20 into a dc analog voltage and output the dc analog voltage to the control device 40, and the control device 40 determines the working current Iout based on the dc analog voltage.

Referring to fig. 4, fig. 4 is a circuit diagram of an embodiment of the atomization driving circuit and the atomization sheet shown in fig. 3. Specifically, the half-wave driving circuit 31 includes a first inductor L1, a first capacitor C1, and a driving switch Q1. Specifically, the first end of the first inductor L1 is connected to the boost circuit 20, and is configured to receive the working voltage Vout output by the boost circuit 20; the first end of the first capacitor C1 is connected with the second end of the first inductor L1, and the second end of the first capacitor C1 is connected with the atomizing sheet 10; the driving switch Q1 includes a first terminal, a second terminal and a control terminal, the first terminal of the driving switch Q1 is connected to a first node n1 between the inductor and the capacitor, the second terminal of the driving switch Q1 is connected to the sampling unit 32 and the first filtering unit 33, and the control terminal of the driving switch Q1 is coupled to the control device 40 and configured to receive a Pulse Width Modulation (PWM) signal output by the control device 40 to regulate and control the frequency of the half-wave driving circuit 31.

Specifically, during operation, the control device 40 provides a driving frequency which accords with the atomization sheet 10 to drive the driving switch Q1, during the time that the driving switch Q1 is switched on, the current inside the first inductor L1 linearly increases, during the time that the driving switch Q1 is switched off, the current of the first inductor L1 continues current for the atomization sheets 10 connected in series through the first seventh capacitor C71, oscillation current and oscillation voltage are generated, the current of the continuous current in the first inductor L1 decreases, a voltage waveform which is similar to a half sine wave is formed at the first end of the driving switch Q1, the voltage drives the atomization sheets 10 after the direct-current voltage component is isolated by the first capacitor C1, the frequency of the driving waveform is the same as the frequency of the square wave of the pulse modulation signal PWM provided by the control device 40, and the atomization sheets 10 can be driven to operate.

The sampling unit 32 includes a first resistor R1, specifically, a first end of the first resistor R1 is connected to the second end of the driving switch Q1, and a second end of the first resistor R1 is grounded.

Specifically, the algorithm of the active power P commonly used by the circuit is as follows:

in the atomization driving circuit 30, u (t) is a dc voltage at an input terminal, i.e., an operating voltage Vout output by the booster circuit 20, and is a constant VDC.

I (t) is the AC current passing through the first inductor L1 at the input end, and the average current value is I _avg Comprises the following steps:

therefore, the atomization driving circuit 30 obtains active power P = input direct-current voltage VDC ×, input average current I _avg 。

The current passing through the first inductor L1 at the input end is divided into two parts, for example, the driving switch Q1 is an NMOS tube, the conduction time of the NMOS tube is t', and the current rising stage

Has a current function of i ₁ (t), current reduction phase

Has a current function of i ₂ (t), the average input current I of the input terminal _avg-L For the rise period i ₁ Average value of (t) I _avg-up And in the falling time period i ₂ Average value of (t) I _avg-down Adding, the formula of which is:

when the NMOS tube is turned off, the first inductor L1, the first capacitor C1 and the atomization sheet 10 are connected in series, and the current flowing into the first capacitor C1 and the atomization sheet 10 is within the time period of the reduction of the input end current

The current in is equal to i ₂ (t) having an average value of:

in the equivalent circuit formed by the first capacitor C1 and the atomizing plate 10, the current flowing through the equivalent circuit is a sine wave current of each harmonic, and the average current value of the sine wave input is 0, so that

In the time period, when the NMOS tube is conducted, the current function value flowing out of the first capacitor C1 and into the NMOS is i ₃ (t) the average value thereof should be in accordance with

Average value I of current flowing into the first capacitor C1 in a time period _avg-down Equal and opposite directions, their absolute values I _avg3 Comprises the following steps:

in that

During the time period, the total current through the NMOS is i ₁ (t)+i ₃ (t) in

In the time period, the total current passing through the NMOS transistor is 0, so the average current passing through the NMOS transistor is:

so that the average input current I of the input terminal _avg-L Equivalent to the current passing through the first resistor R1 connected in series with the second end of the NMOS tube. Therefore, the average input current I of the atomization driving circuit 30 can be obtained by detecting the average current of the first resistor R1 connected in series with the second end of the NMOS transistor _avg-L Namely, the operating current Iout output by the booster circuit 20 is obtained.

Further, the first filtering unit 33 converts the voltage generated by the current in the first resistor R1 into a dc analog voltage and provides the dc analog voltage to the control device 40, the control device 40 calculates an operating current Iout based on the resistance value of the first resistor R1 and the voltage value of the dc analog voltage, and further determines the current power P1 output by the voltage boosting circuit 20 based on the operating current Iout and the operating voltage Vout detected by the detecting circuit 50, and outputs a pulse modulation signal PWM to regulate and control the operating voltage Vout output by the voltage boosting circuit 20. Specifically, the control device 40 adjusts the duty ratio of the pulse modulation signal PWM to adjust the operating voltage Vout of the output of the voltage boosting circuit 20.

Wherein, the current power P1 is greater than the preset target power P2, and the duty ratio of the pulse modulation signal PWM output to the voltage boost circuit 20 is increased; the current power P1 is smaller than the preset target power P2, and then the duty ratio of the pulse modulation signal PWM output to the voltage boost circuit 20 is reduced, so that the current power P1 output by the voltage boost circuit 20 is consistent with the preset target power P2, and further, the atomization sheet 10 can stably work under the preset target power P2, and the atomization efficiency consistency of the atomization sheet 10 is improved.

In this embodiment, the first filtering unit 33 includes a second resistor R2 and a second capacitor C2, a first end of the second resistor R2 is connected to the control device 40, and a second end of the second resistor R2 is connected to a first end of the first resistor R1; one end of the second capacitor C2 is connected to the first end of the second resistor R2, the second end of the second capacitor C2 is grounded, and the second resistor R2 and the second capacitor C2 form an average filter for converting the voltage generated by the current in the first resistor R1 into a dc analog voltage.

Further, the atomization driving circuit 30 further includes a driving unit 34, the control device 40 drives the driving switch Q1 to be turned on or off through the driving unit 34, specifically, the driving unit 34 includes a third resistor R3 and a fourth resistor R4, a first end of the third resistor R3 is connected to the control device 40, a second end of the third resistor R3 is connected to the control end of the driving switch Q1, and the third resistor R3 is used as a current limiting resistor between the control device 40 and the driving switch Q1; a first end of the fourth resistor R4 is connected to a first end of the third resistor R3, a second end of the fourth resistor R4 is grounded, and the fourth resistor R4 serves as a pull-down resistor of the control device 40.

Fig. 5 is a circuit diagram of another embodiment of the atomization driving circuit and the atomization sheet shown in fig. 3. The atomization driving circuit 30 provided in this embodiment includes a half-wave driving circuit 31, a sampling unit 32, a first filtering unit 33, and a driving unit 34, which have the same circuit structure as the atomization driving circuit 30 shown in fig. 3, and details are not repeated here, but the difference is that one end of the atomization piece 10 in the atomization driving circuit 30 shown in fig. 4, which is far away from the first capacitor C1, is connected to the second end of the driving switch Q1, that is, the atomization piece 10 is connected in parallel to the driving switch Q1.

Specifically, the operating current Iout output by the boost circuit may be an average current value of the second end of the NMOS transistor, or may be an average current value of the first resistor R1 after the NMOS transistor and the atomization sheet 10 are connected in parallel, because the first resistor R1 and the first inductor L1 form a series network, the average current passing through L1 should be equal to the average current passing through the first resistor R1, and the atomization driving circuit 30 shown in fig. 5 may also convert the average current passing through the first resistor into the average current value of the operating current Iout output by the boost circuit 20.

Since the input voltage Vin provided by the electric core in the electronic atomization device is generally small, and the operating voltage of the atomization plate 10 is higher than the power supply voltage that can be provided by the electric core, the small power supply voltage can be increased to the operating voltage suitable for the atomization plate 10 by providing the boost circuit 20.

For example, the input voltage Vin provided by the electric core is usually 3.8V or 4.0V, and the working voltage required by the atomizing plate 10 is usually higher than 4.5V, and the voltage boost circuit 20 can boost the smaller input voltage Vin to the working voltage suitable for the atomizing plate 10.

The power consumed by the atomization driving circuit 30 except the atomization plate 10 is negligible relative to the power of the atomization plate 10, so that the current power P1 of the voltage boosting circuit 20 can be regarded as the current atomization power of the atomization plate 10, and the current atomization power of the atomization plate 10 can be adjusted by adjusting the current power P1 of the voltage boosting circuit 20.

The problem of the existing process production causes the impedance deviation of the atomizing plate 10 to be large, and the electric core in the electronic atomization device is a constant voltage source, so that the output voltage output to the atomizing plate 10 is different, the atomization power of the atomizing plate 10 is different, and the atomization rate of the electronic atomization device produced in batch is poor in consistency.

In addition, in order to prevent liquid leakage, the electronic atomization device usually uses a seal ring to compress the atomization sheet 10, the compression degree of the seal ring on the atomization sheet 10 is difficult to control consistently, so that impedance parameters of the atomization sheet 10 after installation change, input (output) power of a driving circuit of the same atomization sheet 10 is greatly different under the same output voltage, and the output power of the whole atomization device and the atomization rate are poor in consistency.

According to the atomizing drive circuit 30, the working current Iout output by the booster circuit 20 is detected and fed back to the control device 40, the control device 40 determines the current power P1 output by the booster circuit 20 based on the obtained working voltage Vout and working current Iout output by the booster circuit 20, compares the current power P1 with the preset target power P2, and regulates and controls the working voltage Vout output by the booster circuit 20 to adjust the current power P1 to be consistent with the preset target power P2, so that the atomizing sheet 10 can stably work under the preset target power P2, the atomizing efficiency consistency of the atomizing sheet 10 is improved, namely the atomizing power difference of the atomizing sheet 10 caused by impedance deviation due to a production assembly process can be eliminated, the atomizing sheet 10 can work under the constant target power P2 without impact caused by power fluctuation, the performance attenuation of the atomizing sheet 10 can be reduced, and the service life of the atomizing sheet 10 can be prolonged.

Referring to fig. 6, fig. 6 is a circuit schematic of an embodiment of the boost circuit as shown in fig. 1. The boost circuit 20 includes a boost chip 21, a voltage dividing branch 22 and a filtering branch 23.

The voltage dividing branch 22 includes a fifth resistor R5 and a sixth resistor R6 connected in series, and one end of the fifth resistor R5 far away from the sixth resistor R6 is used as a voltage output end and is coupled to the atomizing plate 10. In this embodiment, the voltage output terminal is connected to the atomization driving circuit 30, and is coupled to the atomization sheet 10 through the atomization driving circuit 30. The first pin terminal FB of the boost chip 21 is connected to the second node n2 between the fifth resistor R5 and the sixth resistor R6 for providing the reference voltage Vref. One end of the filtering branch 23 is coupled to the control device 40, and the other end is coupled between the fifth resistor R5 and the sixth resistor R6, and is configured to change the pulse modulation signal PWM output by the control device 40 into a direct current signal.

The control device 40 is used for outputting a pulse modulation signal PWM to regulate the working voltage Vout output by the voltage boost circuit 20. Specifically, the control device 40 adjusts the duty ratio of the pulse modulation signal PWM to adjust the operating voltage Vout output by the voltage boost circuit 20.

Specifically, one end of the sixth resistor R6, which is far away from the fifth resistor R5, is grounded, the reference voltage Vref provided by the first pin FB is a fixed value, so that the end voltage of the sixth resistor R6 is the reference voltage Vref, the current value passing through the sixth resistor R6 is a fixed value, the filtering branch 23 changes the pulse modulation signal PWM into a direct current, and the end voltage of the fifth resistor R5, that is, the magnitude of the working voltage Vout, can be adjusted by adjusting and controlling the magnitude of the direct current input by the filtering branch 23, so that the current power P1 of the voltage boosting circuit 20 is consistent with the preset target power P2, and the atomizing plate 10 can stably operate at the preset target power P2, thereby improving the uniformity of the atomizing efficiency of the atomizing plate 10.

The filtering branch 23 includes a seventh resistor R7, an eighth resistor R8 and a third capacitor C3, the seventh resistor R7 is connected in series with the eighth resistor R8, one end of the seventh resistor R7 is connected to the second node n2, one end of the third capacitor C3 is grounded, and the other end is connected to the third node n3 between the seventh resistor R7 and the eighth resistor R8, so as to form a low-pass filtering circuit. The pulse modulation signal PWM is input from one end of the eighth resistor R8, and is changed into a direct current to the voltage dividing branch 22 through the seventh resistor R7 and the eighth resistor R8.

Further, the boost circuit 20 further includes a second filtering unit 24, the second filtering unit 24 is connected in parallel with the voltage dividing branch 22, wherein one end of the second filtering unit 24 is coupled between the voltage output end and one end of the fifth resistor R5, and the other end is grounded, so as to filter the output working voltage Vout, so as to remove signal interference to the working voltage Vout.

The second filtering unit 24 includes a fourth capacitor C4 and a fifth capacitor C5 connected in parallel to remove high-frequency signal interference and low-frequency signal interference to the operating voltage Vout, respectively.

Further, the boost circuit 20 further includes a voltage-stabilizing branch 25 and a third filtering unit 26, the voltage-stabilizing branch 25 is connected between the voltage input end VBAT and the voltage output end of the boost circuit 20, one end of the third filtering unit 26 is coupled between the voltage input end VBAT and the second pin end IN of the boost chip 21, and the other end is grounded.

The voltage stabilizing branch 25 comprises a second inductor L2 and a diode D1 which are connected in series, wherein one end of the second inductor L2 is connected with the voltage input end VBAT, and one end of the diode D1 is connected with the voltage output end; the third pin terminal LX of the boost chip 21 is coupled between the second inductor L2 and the diode D1, and is configured to keep the first pin terminal FB outputting the stable reference voltage Vref based on the voltage signals input by the second pin terminal IN and the third pin terminal LX.

Wherein, the third filtering unit 26 includes a sixth capacitor C6 and a seventh capacitor C7 connected in parallel to remove the high frequency signal interference and the low frequency signal interference to the input voltage Vin, respectively.

In this embodiment, the fourth pin end EN of the boost chip 21 is also connected to the voltage input end VBAT, so as to switch on and off the boost chip 21 by receiving a signal; the fifth pin terminal GND of the boost chip 21 is grounded.

Based on this, the present application further provides an electronic atomization device, which includes the power adjustment circuit 100 as described above, so that the atomization plate 10 in the electronic atomization device can stably operate at the preset target power P2, and the uniformity of the atomization efficiency of the electronic atomization device can be effectively improved.

Based on this, the present application further provides a regulating method of the power regulating circuit 100, and referring to fig. 7, fig. 7 is a schematic flowchart of an embodiment of the regulating method of the power regulating circuit provided in the present application. The method comprises the following steps:

s10: the operating voltage and the operating current of the booster circuit are detected.

Specifically, the control device 40 detects the operating current Iout flowing through the voltage boost circuit 20 through the atomization driving circuit 30, and detects the operating voltage Vout output by the voltage boost circuit 20 through the detection circuit 50 or a detection module provided inside the control device 40.

S20: the present power is determined based on the operating voltage and the operating current.

Specifically, the control device 40 determines the current power P1 of the voltage boost circuit 20 based on the obtained working voltage Vout and the working current Iout, compares the current power P1 with the preset target power P2, and regulates and controls the output voltage of the voltage boost circuit 20 to adjust the current power P1 to be consistent with the preset target power P2, so that the atomizing plate 10 can stably operate at the preset target power P2, and the atomizing efficiency consistency of the atomizing plate 10 is improved, i.e., the large atomizing power difference of the atomizing plate 10 caused by the impedance deviation caused by the production assembly process can be eliminated, and the atomizing plate 10 can operate at the constant target power P2 without the impact caused by the power fluctuation, so that the performance attenuation of the atomizing plate 10 can be reduced, and the service life of the atomizing plate 10 can be prolonged.

The target power P2 may be one of multiple atomization powers preset in the control device 40, so that the user may adjust the atomization power according to the requirement. The target power P2 may also be an atomisation power that is matched to the atomised aerosol-generating substrate, e.g. different types of aerosol-generating substrate may have different corresponding atomisation powers, and the control means 40 may also obtain the type of aerosol-generating substrate by means of a sensing means or a detection circuit or the like.

S30: and in response to the current power not being equal to the preset target power, regulating and controlling the working voltage output by the booster circuit so as to adjust the current power to the target power.

Specifically, the control device 40 outputs a pulse modulation signal PWM to the boost circuit 20, adjusts the working voltage Vout output by the boost circuit 20 using the pulse modulation signal PWM, and further regulates and controls the output power Pout of the boost circuit 20, so that the current power P1 output by the boost circuit 20 after adjustment is equal to the target power P2.

The step S30 specifically includes two ways: in response to the current power P1 being greater than the preset target power P2, increasing the duty ratio of the pulse modulation signal PWM output to the boost circuit 20, thereby reducing the working voltage Vout output by the boost circuit 20; or in response to the current power P1 being less than the preset target power P2, the duty cycle of the pulse modulation signal PWM output to the voltage boost circuit 20 is reduced, so as to increase the working voltage Vout output by the voltage boost circuit 20.

For example, the current power P1 is greater than the preset target power P2, and the duty ratio of the pulse modulation signal PWM output to the voltage boosting circuit 20 is increased to reduce the current value input to the voltage dividing branch 22, so that the operating voltage Vout output by the voltage boosting circuit 20 can be reduced, and the output power of the voltage boosting circuit 20 can be decreased, so that the output power Pout is equal to the preset target power P2.

For example, if the current power P1 is less than the preset target power P2, the duty ratio of the pulse modulation signal PWM output to the voltage boosting circuit 20 is decreased to increase the current value input to the voltage dividing branch 22, so as to increase the working voltage Vout output by the voltage boosting circuit 20, and thus increase the output power of the voltage boosting circuit 20, so that the output power Pout is equal to the preset target power P2.

Referring to fig. 8, fig. 8 is a schematic structural diagram of an embodiment of a storage medium provided in the present application.

The storage medium 60 stores program data 61, and the program data 61, when executed by the processor, implements the regulation method of the power regulation circuit 100 as described in fig. 7.

The program data 61 is stored in a storage medium 60 and includes instructions for causing a network device (which may be a router, a personal computer, a server, etc.) or a processor to perform all or part of the steps of the methods described in the various embodiments of the present application.

Alternatively, the storage medium 60 may be various media that can store the program data 61, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

Referring to fig. 9, fig. 9 is a schematic structural diagram of an embodiment of an electronic atomization device provided in the present application. The electronic atomizer 70 includes a processor 72 and a memory 71 connected to each other, the memory 71 stores a computer program, and the processor 72 implements the adjusting method of the power adjusting circuit 100 when executing the computer program.

In contrast to the prior art, the present application discloses an electronic atomizer, a storage medium, a power regulating circuit 100, and a regulating method thereof. The working current Iout output by the booster circuit 20 is detected by the atomization driving circuit 30 and fed back to the control device 40, the control device 40 determines the current power P1 output by the booster circuit 20 based on the obtained working voltage Vout and working current Iout output by the booster circuit 20, and compares the current power P1 with the preset target power P2, and regulates and controls the working voltage Vout output by the booster circuit 20 to adjust the current power P1 to be consistent with the preset target power P2, so that the atomization sheet 10 can stably work under the preset target power P2, the atomization efficiency consistency of the atomization sheet 10 is improved, that is, the large atomization power difference of the atomization sheet 10 caused by impedance deviation due to a production and assembly process can be eliminated, the atomization sheet 10 can work under the constant target power P2 without impact caused by power fluctuation, the performance attenuation of the atomization sheet 10 can be reduced, and the service life of the atomization sheet 10 can be prolonged.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.

Claims

1. A power regulating circuit applied to an electronic atomization device is characterized by comprising:

an atomising sheet for atomising an aerosol-generating substrate;

the boosting circuit is coupled with the atomizing sheet and used for outputting working voltage;

the atomization driving circuit is coupled between the atomization sheet and the boost circuit and is used for detecting working current output by the boost circuit;

and the control device is coupled with the atomization driving circuit and the booster circuit and used for determining the current power output by the booster circuit based on the working current and the working voltage and regulating and controlling the working voltage output by the booster circuit based on the current power so that the current power is adjusted to the preset target power.

2. The power conditioning circuit of claim 1, wherein the power conditioning circuit further comprises:

and the detection circuit is coupled between the boosting circuit and the atomization driving circuit and is used for detecting the working voltage output by the boosting circuit.

3. The power conditioning circuit of claim 1, wherein the fogging drive circuit comprises:

the half-wave driving circuit is connected with the booster circuit and receives the working voltage;

the sampling unit is connected with the half-wave driving circuit and is used for sampling the working voltage;

the first filtering unit is coupled to the half-wave driving circuit, the sampling unit and the control device, and is used for converting the working voltage into a direct-current analog voltage, and the working current is determined based on the direct-current analog voltage.

4. The power conditioning circuit of claim 3, wherein the half-wave drive circuit comprises:

the first end of the first inductor is connected with the booster circuit;

a first end of the first capacitor is connected with a second end of the first inductor, and a second end of the first capacitor is connected with the atomization sheet;

the driving switch comprises a first end, a second end and a control end, the first end of the driving switch is connected with a first node between the inductor and the capacitor, the second end of the driving switch is connected with the sampling unit and the first filtering unit, and the control end of the driving switch is coupled with the control device and used for receiving a pulse modulation signal output by the control device to regulate and control the frequency of the half-wave driving circuit.

5. The power conditioning circuit of claim 3, wherein the sampling unit comprises:

the first end of the first resistor is connected with the half-wave driving circuit, and the second end of the first resistor is grounded;

the first filtering unit includes:

a first end of the second resistor is connected with the control device, and a second end of the second resistor is connected with a first end of the first resistor;

and one end of the second capacitor is connected with the first end of the second resistor, and the second end of the second capacitor is grounded.

6. The power conditioning circuit of claim 4, wherein the fogging drive circuit further comprises:

a drive unit, the drive unit comprising:

a first end of the third resistor is connected with the control device, and a second end of the third resistor is connected with the control end of the driving switch;

and a first end of the fourth resistor is connected with a first end of the third resistor, and a second end of the fourth resistor is grounded.

7. The power conditioning circuit of claim 1, wherein the boost circuit comprises:

the voltage division branch comprises a fifth resistor and a sixth resistor which are connected in series, one end, far away from the sixth resistor, of the fifth resistor is connected with a voltage output end, and the voltage output end is used for being coupled with the atomization sheet;

a first pin end of the boost chip is connected with a second node between the fifth resistor and the sixth resistor and is used for providing a reference voltage;

and one end of the filtering branch is coupled with the control device, and the other end of the filtering branch is connected to the second node and used for converting the pulse modulation signal output by the control device into a direct current signal.

8. The power conditioning circuit of claim 7, wherein the boost circuit further comprises a second filtering unit connected in parallel with the voltage dividing branch, wherein one end of the second filtering unit is coupled between the voltage output terminal and one end of the fifth resistor.

9. The power conditioning circuit of claim 8, wherein the boost circuit further comprises a regulation branch connected between the voltage input and the voltage output of the boost circuit.

10. The power conditioning circuit of claim 9, wherein the boost circuit further comprises a third filter unit, and wherein one end of the third filter unit is coupled between the voltage input terminal and the second pin terminal of the boost chip.

11. An electronic atomisation device, characterised in that it comprises a power conditioning circuit according to any of the claims 1 to 10.