Aerosol generating device and time amplification method

Abstract

The invention relates to an aerosol generating device and a time amplification method. The aerosol generating device comprises a time amplification system. The time amplification system comprises an input unit, an amplification unit, a driving unit and an output unit. The input unit is configured to provide a first signal; the amplifying unit is electrically connected with the input unit and comprises a first charging and discharging circuit; the driving unit is electrically connected with the input unit and the amplification unit, and the driving unit is configured to control the first charging and discharging circuit to charge when the start of the first signal is detected; when the end of the first signal is detected, the first charging and discharging circuit is controlled to discharge; the output unit is electrically connected with the amplification unit, the output unit is configured to output a second signal according to the preset multiplying power and the voltage value of the first charging and discharging circuit based on the input first signal, and the time width of the second signal is larger than that of the first signal. The time amplification system can output a second signal amplified by a preset multiplying power according to the first signal.

Description

Technical Field

[0001] The present application relates to the field of integrated circuit technology, and more specifically, to an aerosol generating device and a time amplification method. Background Art

[0002] Microcontrollers are often used to measure the time variation of signal parameters in circuits, such as the time variation of level parameters and current parameters. The commonly used measurement method is to record the start and end time of the signal parameter to calculate the time variation of the parameter. Some signal parameters have a short duration, requiring the microcontroller to complete two measurements in a short time, that is, requiring the microcontroller to have a smaller measurement time interval step.

[0003] The minimum time interval between two consecutive measurements of a parameter by a single-chip microcomputer is limited by the hardware performance of the single-chip microcomputer and the frequency of the crystal oscillator. The better the hardware performance of the single-chip microcomputer / the higher the crystal oscillator frequency, the higher the clock frequency can be, so as to have a smaller minimum time interval step. However, to meet the higher hardware performance of the single-chip microcomputer and the higher frequency crystal oscillator, the cost of the single-chip microcomputer needs to be greatly increased. Summary of the invention

[0004] Based on this, the present application provides an aerosol generating device and a time amplification method, which can output a signal with amplified duration according to a preset magnification based on a signal with a shorter duration, so that a low-performance single-chip microcomputer can detect the signal with amplified duration.

[0005] The aerosol generating device provided by the present application includes a time magnification system, which includes: an input unit, an amplification unit, a driving unit and an output unit. The input unit is configured to provide a first signal; the amplification unit is electrically connected to the input unit, and the amplification unit includes a first charge-discharge circuit; the driving unit is electrically connected to the input unit and the amplification unit respectively, and the driving unit is configured to: control the first charge-discharge circuit to charge when the start of the first signal is detected; and control the first charge-discharge circuit to discharge when the end of the first signal is detected; the output unit is electrically connected to the amplification unit, and the output unit is configured to: output a second signal based on the input first signal according to a preset magnification and the voltage value of the first charge-discharge circuit, and the time width of the second signal is greater than the time width of the first signal.

[0006] In some embodiments, the aerosol generating device also includes an electromagnetic heating system, which includes an electromagnetic heating circuit and a sampling circuit, and the sampling circuit is configured to: output a sampling signal when a preset sampling condition is met, and the input unit is configured to provide the first signal based on the sampling signal, wherein, within a preset sampling period, the duration of the first signal corresponds to the duration of the sampling signal.

[0007] In some embodiments, the first charge and discharge circuit includes a first capacitor, a charging resistor, a discharging resistor and a first switch, the resistance of the charging resistor is smaller than the resistance of the discharging resistor, the first capacitor and the charging resistor constitute a charging circuit, and the discharging resistor and the first capacitor constitute a discharging circuit; the first switch is configured to be switchable between a first state and a second state; the driving unit is configured to: at the beginning of the first signal, control the first switch to switch to the first state, so that the charging circuit is turned on and the discharging circuit is turned off; at the end of the first signal, control the first switch to switch to the second state, so that the charging circuit is turned off and the discharging circuit is turned on.

[0008] In some embodiments, the amplifying unit further includes a discharger, which is electrically connected to the first capacitor, and is configured to release the charge of the first capacitor when the first switch is disconnected.

[0009] In some embodiments, the time amplification system further includes a calculation unit, which is electrically connected to the output unit, and is configured to: obtain the time width and the preset magnification of the second signal; and calculate the time width of the first signal based on the time width of the second signal and the preset magnification.

[0010] In some embodiments, the calculation unit includes a counter and an adder, the counter is configured to: record a first count value when the start of the second signal is detected; and record a second count value when the end of the second signal is detected; the adder is configured to: obtain the time width of the second signal based on the difference between the second count value and the first count value.

[0011] In some embodiments, the input unit is configured to input a sample signal, and the sample signal has a known time width; the driving unit is configured to: control the first charge and discharge circuit to charge when the start of the sample signal is detected; and control the first charge and discharge circuit to discharge when the end of the sample signal is detected; the output unit is configured to: output a third signal according to the voltage value of the first charge and discharge circuit based on the input sample signal; the calculation unit is configured to: obtain the preset multiplier according to the time width of the sample signal and the time width of the third signal.

[0012] In some embodiments, the input unit includes a trigger, the trigger is electrically connected to the driving unit, and the trigger is configured to trigger the first signal to be input into the driving unit.

[0013] In some embodiments, the output unit includes a comparator, which is configured to: obtain the voltage value and comparison voltage value of the first charge and discharge circuit; and output the second signal when the voltage value of the first charge and discharge circuit is greater than or equal to the comparison voltage value; wherein the comparison voltage value is set based on the preset multiplier.

[0014] The time amplification method of the embodiment of the present application includes: providing a first signal; controlling the first charge and discharge circuit to charge when the start of the first signal is detected; controlling the first charge and discharge circuit to discharge when the end of the first signal is detected; and outputting a second signal based on the input first signal according to a preset magnification and a voltage value of the first charge and discharge circuit, wherein the time width of the second signal is greater than the time width of the first signal.

[0015] The above-mentioned aerosol generating device and time amplification method can amplify the second signal of the preset magnification according to the first signal output to provide a second signal that is easier to detect. The time width of the first signal can be calculated by combining the time width of the second signal and the preset magnification, so as to accurately obtain the time width of the first signal when the time width of the first signal is small and difficult to detect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a structural schematic diagram of a time amplification system of an aerosol generating device in one embodiment of the present application;

[0018] Figure 2 is a schematic structural diagram of an aerosol generating device in one embodiment of the present application;

[0019] Figure 3 A schematic diagram of voltage changes of a first charge and discharge circuit, a first signal, and a second signal in an embodiment of the present application;

[0020] Figure 4 This is a structural logic diagram of a first time amplification system in an embodiment of the present application;

[0021] Figure 5 This is a structural logic diagram of a second time amplification system in an embodiment of the present application;

[0022] Figure 6 It is a structural schematic diagram of a third time amplification system in one embodiment of the present application;

[0023] Figure 7 It is a structural schematic diagram of a fourth time amplification system in one embodiment of the present application;

[0024] Figure 8 A schematic diagram of voltage changes of a first capacitor, a first signal, and a second signal in an embodiment of the present application;

[0025] Fig. 9 FIG. 4 is a flow chart of a time amplification method in one embodiment of the present application. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "time width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0032] See also Figure 1 and Figure 2The present application provides an aerosol generating device 1000, and the aerosol generating device 1000 includes a time amplification system 100. The time amplification system 100 includes an input unit 10, an amplification unit 20, a drive unit 30 and an output unit 40. The input unit 10 is configured to provide a first signal. The amplification unit 20 is electrically connected to the input unit 10, and the amplification unit 20 includes a first charge and discharge circuit 21. The drive unit 30 is electrically connected to the input unit 10 and the amplification unit 20, respectively, and the drive unit 30 is configured to: control the charging of the first capacitor when the start of the first signal is detected; and control the discharge of the first charge and discharge circuit 21 when the falling edge of the first signal is detected. The output unit 40 is electrically connected to the amplification unit 20, and the output unit 40 is configured to: based on the input first signal, output a second signal according to a preset magnification and a voltage value of the first charge and discharge circuit 21, and the time width of the second signal is greater than the time width of the first signal.

[0033] The input unit 10 , the amplifying unit 20 , the driving unit 30 and the output unit 40 may include an electrical device unit and / or a circuit unit, which is not limited here.

[0034] The time width of a signal refers to the duration of the signal. The time width of the second signal is greater than the time width of the first signal, which means that the duration of the second signal is greater than the duration of the first signal. The duration of the signal can be calculated based on the time difference between the start time of the signal and the end time of the signal. For example, the time width of the first signal is calculated based on the time difference between the end time of the first signal and the start time of the first signal. The embodiment of the present application provides a time amplification system for a first signal that is difficult to detect because the time difference between the end time and the start time is small, which can amplify the first signal into a second signal with a larger time width for detection, and convert the time width of the detected second signal into the time width of the first signal in combination with the amplification factor, so as to accurately obtain the time width of the first signal that is difficult to detect.

[0035] The first signal provided by the input unit 10 is a signal to be amplified, and the output unit 40 outputs a second signal according to the time width of the first signal. The time width of the second signal is amplified by a preset multiple relative to the time width of the first signal so as to be more easily detected. For example, if a single-chip microcomputer is used to detect the first signal, but the minimum clock oscillation period of the single-chip microcomputer is greater than the time width of the first signal, it is difficult for the single-chip microcomputer to accurately record the first signal. For example, the minimum clock oscillation period of the single-chip microcomputer is T0, and the time width of the first signal is T1. At the beginning of the first signal, the single-chip microcomputer counter increases by one count. It is assumed that the single-chip microcomputer can perform the next count at least after the interval time T0, but the time width T1 of the first signal is less than T0, resulting in the single-chip microcomputer being unable to count at the end of the first signal, thereby resulting in the single-chip microcomputer being unable to record the time width of the first signal, or the interval time T0 can only be used as the time width of the first signal, resulting in inaccurate recorded time width. Assume that the time width of the second signal is T2, and the time width T2 of the second signal is greater than the time width T1 of the first signal. As long as the time width T2 of the second signal is greater than or equal to the minimum clock oscillation period T0 of the single-chip microcomputer, the time width T2 of the second signal can be accurately recorded, and the time width T1 of the first signal can be obtained by combining the preset magnification of the time width T2 of the second signal relative to the time width T1 of the first signal. If the time width T2 of the second signal is still less than T0, the preset magnification can be increased to obtain a time width T2 greater than T0, so that the single-chip microcomputer can accurately record the second signal.

[0036] In one embodiment, the first signal may be generated by the input unit 10. For example, the input unit 10 includes a signal generator, and the signal generator generates the first signal.

[0037] In yet another embodiment, Figure 2 As shown, the aerosol generating device 100 further includes an electromagnetic heating system 200, which can be operated at a certain current value and voltage value to heat the aerosol generating medium to generate aerosol. The electromagnetic heating system 200 includes an electromagnetic heating circuit 210 and a sampling circuit 220, and the sampling circuit 220 is configured to output a sampling signal when a preset sampling condition is met. The input unit 10 is configured to provide a first signal according to the sampling signal.

[0038] Among them, the sampling circuit 220 can sample parameters in the electromagnetic heating circuit 210, such as voltage parameters, current parameters, etc. Meeting the preset condition of the sampling circuit 220 may refer to the condition that the sampling time is greater than or equal to the preset sampling time. Accordingly, the sampling circuit 220 can output the sampling signal according to the preset sampling time to ensure that the sampling time is sufficient; meeting the preset condition of the sampling circuit 220 may also refer to the condition that the current value or voltage value of the electromagnetic heating circuit 210 obtained by sampling is greater than a certain value. Whether the current value or voltage value of the electromagnetic heating circuit 210 is greater than a certain value is related to the working mode of the aerosol generating device 100. For example, in a certain preset working mode of the aerosol generating device 100, the current value or voltage value of the electromagnetic heating circuit 210 is greater than a certain value. Therefore, accordingly, the sampling circuit 220 can output the sampling signal correspondingly when the aerosol generating device 100 is in a certain preset working mode, and does not need to output the sampling signal in a non-preset working mode to save power consumption.

[0039] In a sampling cycle of the sampling circuit 220, the duration of the first signal provided by the input unit 10 corresponds to the duration of the sampling signal provided by the sampling circuit 220. For example, the input unit 10 provides the first signal when it receives the sampling signal, and stops providing the first signal when the sampling signal ends. In this way, the duration of the first signal can represent the duration of the current value or voltage value of the electromagnetic heating circuit 210 being greater than the preset sampling value. On the basis of being able to accurately obtain the duration of the first signal according to the duration of the second signal, the duration of the current value or voltage value of the electromagnetic heating circuit 210 being greater than the preset sampling value can be accurately obtained, which is conducive to the precise control of the electromagnetic heating circuit 210.

[0040] See also Figure 1 and Figure 3 The amplification unit 20 includes a first charge and discharge circuit 21, and the first charge and discharge circuit 21 can be charged or discharged according to the control of the driving unit. The time amplification system 100 uses the charge and discharge characteristics of the first charge and discharge circuit 21 to "amplify" the time width of the first signal to output a second signal with a longer time width. In one embodiment, the rising edge of the signal is used as the start time of the signal, and the falling edge of the signal is used as the end time of the signal. When the rising edge of the first signal is detected, that is, when the start of the first signal is detected, the driving unit 30 controls the first charge and discharge circuit 21 to charge, and when the falling edge of the first signal is detected, that is, when the end of the first signal is detected, the driving unit 30 controls the first charge and discharge circuit 21 to discharge. Among them, during the period from the rising edge of the first signal to the falling edge of the first signal, for example Figure 3 The T1 period shown is the time width of the first signal.

[0041] The second signal is a signal output based on the voltage value of the first charge and discharge circuit 21. For example, the first charge and discharge circuit 21 outputs the second signal when the first charge and discharge circuit 21 has a voltage, and the time width of the second signal is the same as the time when the first charge and discharge circuit 21 has a voltage value, and the time when the second signal has a voltage value is greater than the time width of the first signal, so the time width of the second signal is greater than the time width of the first signal.

[0042] like Figure 3 As shown, in one embodiment, during the period from the rising edge of the first signal to the falling edge of the first signal, that is, within the time width T1 of the first signal, the voltage value of the first charge and discharge circuit 21 rises; and after the falling edge of the first signal, that is, outside the time width T1 of the first signal, the first charge and discharge circuit 21 still has a voltage value due to discharge. Assuming that the total time of charging and discharging of the first charge and discharge circuit 21 is Tc, the charging time of the first charge and discharge circuit 21 is Tca, and the discharge time of the first capacitor is Tcb, then Tca=T1, Tc=Tca+Tcb, so Tc>T1. If the output unit 40 is configured to output the second signal when the voltage value of the first charge and discharge circuit 21 is detected, the time width of the second signal is Tc, and the time width Tc of the second signal is greater than the time width T1 of the first signal.

[0043] Furthermore, the output unit 40 outputs the second signal according to the voltage value of the first charge and discharge circuit 21, and can be configured to output the second signal when the voltage value of the first charge and discharge circuit 21 is greater than or equal to a preset voltage threshold. Figure 2 As shown, for example, the preset voltage threshold is U0, then the second signal starts to be output when the voltage value of the first charge and discharge circuit 21 rises to U0, and stops outputting the second signal when the voltage value of the first charge and discharge circuit 21 drops to U0. Assuming that the time width of the second signal is T2, the higher the preset voltage threshold U0 is, the shorter the time width T2 of the second signal is, and the lower the preset voltage threshold U0 is, the longer the time width T2 of the second signal is. The preset voltage threshold U0 at least ensures that the time width T2 of the second signal is greater than the time width T1 of the first signal.

[0044] Assuming that the magnification ratio of the time width T2 of the second signal to the time width T1 of the first signal is N, then N=T2 / T1. Figure 3As shown, on the one hand, in combination with the above, the time width T2 of the second signal is related to the preset voltage threshold U0. The higher the preset voltage threshold U0 is, the shorter the time width T2 of the second signal is, and the smaller the corresponding magnification N is. The lower the preset voltage threshold U0 is, the longer the time width T2 of the second signal is, and the larger the corresponding magnification N is. Therefore, the corresponding magnification N of the amplification unit 20 can be configured by configuring the preset voltage threshold U0. On the other hand, the charging time and / or discharging time of the first charge and discharge circuit 21 can be configured by configuring a resistor in the amplification unit 20 to configure the time width T2 of the second signal, thereby configuring the corresponding magnification N.

[0045] Wherein, when the resistance value parameter and the preset voltage threshold U0 configured in the amplifying unit 20 are both known parameters, the corresponding amplification factor N can be calculated, and the amplification factor N can be changed correspondingly by adjusting the resistance value parameter and / or the preset voltage threshold U0 configured in the amplifying unit 20. Based on this, when the resistance value parameter and the preset voltage threshold U0 configured in the amplifying unit 20 are determined, a determined preset factor can be obtained, and the preset factor is assumed to be N0, then correspondingly, the amplification factor of the second signal T2 output by the output unit 40 compared to the time width T1 of the first signal is the preset factor N0.

[0046] At present, the minimum clock oscillation period of a single-chip microcomputer is limited by the performance of the single-chip microcomputer and the frequency of the crystal oscillator. Generally, recording a signal with a smaller time width requires a single-chip microcomputer with higher performance and a crystal oscillator with a higher frequency, which will greatly increase the cost. The time amplification system 100 of the present application can output a second signal with a larger time width based on the input first signal according to a preset magnification and the voltage value of the first capacitor. The second signal is easier to be recorded by the single-chip microcomputer, and the time width of the first signal can be converted according to the preset magnification. In this way, a single-chip microcomputer with lower performance can be used to record a first signal with a shorter time width.

[0047] The following is a further description with reference to the accompanying drawings.

[0048] See also Figure 1 and Figure 2 In some embodiments, the time amplification system 100 is electrically connected to the single-chip microcomputer 300, the time amplification system 100 and the single-chip microcomputer 300 are independent of each other, the time amplification system 100 outputs a second signal to the single-chip microcomputer 300, the single-chip microcomputer 300 can detect the time width of the second signal, and calculate the time width of the first signal according to the time width of the second signal and the preset magnification. Figure 2As shown, assuming that the time width of the first signal is T1, the time width of the second signal is T2, and the preset magnification is N0, then T1=T2 / N0. In this way, when the single-chip microcomputer 300 is difficult to measure the time width of the first signal, the time amplification system 100 outputs the second signal whose time width is easy to measure based on the first signal and the preset magnification, so that the single-chip microcomputer 300 can measure the time width of the second signal, and calculate the time width of the first signal in combination with the time width of the second signal and the known preset magnification.

[0049] See also Figure 1 In some embodiments, the time amplification system 100 further includes a calculation unit 50, which is electrically connected to the output unit 40. The calculation unit 50 is configured to obtain the time width of the second signal; and obtain the time width of the first signal according to the time width of the second signal and a preset magnification. In this way, the time amplification system 100 can output the time width of the first signal.

[0050] In some embodiments, the calculation unit 50 includes a counter 51 and an adder 52. The counter 51 is configured to record a first count value when the start of the second signal is detected; and to record a second count value when the end of the second signal is detected. The adder is configured to obtain a time width of the second signal according to a difference between the second count value and the first count value.

[0051] Please combine Figure 3 In one embodiment, the second signal is a digital signal, the rising edge of the second signal corresponds to the time t1 as the start of the second signal, and the falling edge of the second signal corresponds to the time t2 as the end of the second signal. The counter records the first count value A at the time t1 when the rising edge of the second signal is detected, and records the second count value B at the time t2 when the falling edge of the second signal is detected, and the time width T2 of the second signal is BA.

[0052] In another embodiment, the second signal is an analog signal, and the second signal begins when the current value or voltage value sampled by the second signal is greater than a preset sampling threshold, and ends when the current value or voltage value sampled by the second signal is less than the preset sampling threshold.

[0053] See also Figure 4 In some embodiments, the first charge-discharge circuit 21 includes a first capacitor, a charging resistor, a discharging resistor, and a first switch. The resistance of the charging resistor is smaller than the resistance of the discharging resistor. The first capacitor and the charging resistor form a charging circuit, and the discharging resistor and the first capacitor form a discharging circuit. The resistance of the charging resistor and the resistance of the discharging resistor are set based on a preset ratio.

[0054] like Figure 4 As shown, Figure 3In the figure, C1 is the first capacitor, R1 is the charging resistor, R2 is the discharging resistor, and S1 is the first switch. One end of the first capacitor C1 is connected to the charging resistor R1, and the other end of the first capacitor C1 is grounded. One end of the charging resistor R1 is connected in series with the first capacitor C1 to form a charging circuit, the other end of the charging resistor R1 is electrically connected to the first switch S1, the discharging resistor R2 is connected in parallel with the first capacitor C1 to form a discharging circuit, and the first switch S1 is electrically connected to the power supply and the drive unit 30, respectively. The first switch S1 is electrically connected to the drive unit 30, and can be switched between a first state and a second state under the control of the drive unit 30. The first state of the first switch S1 is a state in which the charging circuit is turned on and the discharging circuit is turned off, and the second state of the first switch S1 is a state in which the charging circuit is turned off and the discharging circuit is turned on.

[0055] The driving unit 30 is configured to control the first switch S1 to switch to the first state when the first signal starts, for example, when the rising edge of the first signal is detected, so that the charging circuit is turned on and the discharging circuit is turned off, so that the power supply charges the first capacitor C1. The driving unit 30 is also configured to control the first switch S1 to switch to the second state when the first signal ends, for example, when the falling edge of the first signal is detected, so that the charging circuit is turned off and the discharging circuit is turned on, so that the first capacitor C1 is discharged. In this way, the driving unit 30 can control the charging and discharging of the first capacitor C1 by controlling the first switch S1 to switch between the first state and the second state.

[0056] The charging rate of the first capacitor C1 is related to the resistance of the charging resistor R1 and the discharge resistor R2, and the discharging rate of the first capacitor C1 is related to the resistance of the discharge resistor R2. Figure 3 , when the resistance of the charging resistor R1 is less than the resistance of the discharging resistor R2, the charging rate of the first capacitor C1 is greater than the discharging rate of the first capacitor C1, and the charging time Tca of the first capacitor C1 is related to the time width T1 of the first signal, so that the discharging time Tcb of the first capacitor C1 is greater than the charging time Tca of the first capacitor C1. Since the charging time Tca of the first capacitor C1 is related to the time width T1 of the first signal, when the time width T1 of the first signal remains unchanged, the longer the discharging time Tcb of the first capacitor C1 is, the longer the total charging and discharging time Tc of the first capacitor C1 is, and the larger the time width T2 of the second signal that can be outputted is, that is, the larger the magnification of the time amplification system 100 is.

[0057] In the case where the time width T1 of the first signal remains unchanged, the charging time length Tca of the first capacitor C1 remains unchanged, and the discharge time length Tcb of the first capacitor C1 is related to the amount of electricity Q accumulated by the first capacitor C1 during the charging time length Tca and the discharge rate of the first capacitor C1. The amount of electricity Q accumulated by the first capacitor C1 during the charging time length Tca is related to the charging rate of the first capacitor C1, and the charging rate of the first capacitor C1 is related to the resistance of the charging resistor R1 and the discharge resistor R2, and the discharge rate of the first capacitor C1 is related to the resistance of the discharge resistor R2, so that by adjusting the resistance of the charging resistor R1 and / or the discharge resistor R2, the discharge time length Tcb of the first capacitor C1 can be adjusted to adjust the time width T2 of the second signal, that is, the larger the magnification of the time amplification system 100 can be adjusted. In this way, the resistance of the charging resistor R1 and the discharge resistor R2 can be set based on the preset magnification, so that the time width T2 of the second signal is magnified by the preset magnification relative to the time width T1 of the first signal.

[0058] See also Figure 5 In some embodiments, the first charge and discharge circuit 21 may further include a second switch S2, which is connected in series with the discharge resistor R2 and is electrically connected to the drive unit 30. The drive unit 30 is configured to control the first switch S1 to be turned on and the second switch S2 to be turned off when the rising edge of the first signal is detected. When the first switch S1 is turned on and the second switch S2 is turned off, the first capacitor C1 is connected to the power supply, and the power supply charges the first capacitor C1. The drive unit 30 is also configured to control the first switch S1 to be turned off and the second switch S2 to be turned on when the falling edge of the first signal is detected. When the first switch S1 is turned off and the second switch S2 is turned on, the first capacitor C1 is discharged. In this way, the drive unit 30 can control the charging and discharging of the first capacitor C1 by controlling the turning on or off of the first switch S1 and the second switch S2. Among them, the charging rate of the first capacitor C1 is related to the charging resistor R1, and the discharging rate of the first capacitor C1 is related to the resistance value of the discharge resistor R2, and the Figure 3 Compared with the illustrated embodiment, it is easier to calculate the discharge time Tcb of the first capacitor C1, so as to more easily calculate the magnification of the time width of the signal by the time amplification system 100, and to configure the resistance values ​​of the charging resistor R1 and the discharging resistor R2 based on the preset magnification. Figure 3 The illustrated embodiment is compared to Figure 4 The illustrated embodiment saves the switch S2 and reduces the electrical connection relationship and driving relationship between the driving unit 30 and the switch S2, which can save costs and simplify the charging / discharging control of the first capacitor C1 by the driving unit 30.

[0059] See also Figure 6 , Figure 61 is a circuit diagram of an embodiment of the time amplification system 100. In some embodiments, the first switch S1 is a MOS switch (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET), the source of the first switch S1 is electrically connected to the power supply (VCC), the drain of the first switch S1 is electrically connected to the charging resistor, and the gate of the first switch S1 is electrically connected to the driving unit 30. Figure 3 When the rising edge of the first signal is detected, the driving unit 30 inputs a high level to the gate of the first switch S1 to turn on the first switch S1; when the falling edge of the first signal is detected, the driving unit 30 inputs a low level to the gate of the first switch S1 to turn off the first switch S1.

[0060] See also Figure 7 In some embodiments, the time amplification system 100 is electrically connected to the first signal source, and the driving unit 30 includes a first resistor R14, a second resistor R15, a third resistor R11, a fourth resistor R12 and a third switch S3. The third switch S3 is a MOS switch, the source of the third switch S3 is grounded, the drain of the third switch S3 is electrically connected to the gate of the first switch S1, and the gate of the third switch S3 is electrically connected to the signal source. The first resistor R14 is connected in series between the signal source and the third switch S3, the second resistor R15 is connected in parallel with the third switch S3, the third resistor R11 is connected in series between the gate of the first switch S1 and the drain of the third switch S3, and the fourth resistor R12 is connected in series between the gate of the first switch S1 and the power supply. Please combine Figure 2 When the signal source provides the first signal, starting from the rising edge of the first signal, the driving unit 30 inputs a high level to the gate of the first switch S1 to turn on the first switch S1; when the signal source stops providing the first signal, starting from the falling edge of the first signal, the driving unit 30 inputs a low level to the gate of the first switch S1 to turn off the first switch S1.

[0061] See also Figure 7 In some embodiments, the output unit 40 includes a comparator, which is configured to: obtain the voltage value and the comparison voltage value of the first charge and discharge circuit 21; and output a second signal when the voltage value of the first charge and discharge circuit 21 is greater than or equal to the comparison voltage value. The comparison voltage value is set based on a preset magnification.

[0062] Please combine Figure 7 and Figure 8, the output unit 40 can be configured to output the second signal when the voltage value of the first capacitor is greater than or equal to the preset voltage threshold U0, and accordingly, when the comparison voltage value input by the comparator is the preset voltage threshold U0. In this way, when the voltage value of the first capacitor is greater than or equal to the preset voltage threshold U0, the comparator outputs the second signal. Figure 2 As shown, the signal width T2 of the second signal is related to the preset voltage threshold U0, that is, the signal width T2 of the second signal is related to the comparison voltage value at the comparator input, and the amplification factor of the time amplification system 100 is related to the signal width T2 of the second signal: the higher the comparison voltage value U1 at the comparator input, the smaller the signal width T2 of the second signal, and the smaller the amplification factor of the time amplification system 100; the lower the comparison voltage value U1 at the comparator input, the larger the signal width T2 of the second signal, and the larger the amplification factor of the time amplification system 100. Therefore, the preset factor can be set by configuring the comparison voltage value U1 at the comparator input, so that the output unit 40 outputs the second signal according to the preset factor.

[0063] In combination with the foregoing, the amplification factor of the time amplification system 100 is also related to the charging time and the discharging time of the first capacitor, and the charging time and the discharging time of the first capacitor are related to the resistance value configured by the amplification unit 20, for example, Figure 3 In the illustrated circuit, the charging time and discharging time of the first capacitor are related to the resistance values ​​of the charging resistor R1 and the discharging resistor R2. That is, the amplification factor of the time amplification system 100 is related to the resistance value configured by the amplification unit 20 and the comparison voltage value input to the comparator. The resistance value of the amplification unit 20 and the comparison voltage value input to the comparator can be configured based on a preset ratio, so that the time width T2 of the second signal output by the output unit 40 is amplified by a preset ratio compared to the time width T1 of the first signal.

[0064] In some embodiments, after the resistance value of the amplifying unit 20 and the comparison voltage value at the comparator input are configured, a sample signal with a known time width can be input into the time amplification system 100, and the time amplification system 100 can be used to output a third signal with a detectable time width based on the input sample signal, so as to calculate a preset magnification according to the time width of the third signal and the time width of the sample signal.

[0065] See also Figure 1In one embodiment, the input unit 10 is configured to input a sample signal. The driving unit 30 is configured to control the first charge-discharge circuit 21 to charge when the start of the sample signal is detected; and to control the first charge-discharge circuit 21 to discharge when the end of the sample signal is detected. The output unit 40 is configured to: output a third signal according to the voltage value of the first charge-discharge circuit 21 based on the input sample signal. The calculation unit 50 is configured to: obtain a preset magnification according to the time width of the sample signal and the time width of the third signal.

[0066] Assume that the time width of the sample signal is Ty, the time width of the third signal is T3, and the preset magnification is N0, then N0=T3 / Ty. Among them, the time width of the third signal is related to the resistance value of the amplifying unit 20 and the comparative voltage value input to the comparator. When the preset magnification obtained does not meet the requirements, the time width of the third signal can be changed by adjusting the resistance value of the amplifying unit 20 and / or adjusting the comparative voltage value input to the comparator to change the preset magnification. For example, in order to facilitate the conversion between the time width of the first signal and the time width of the second signal, the ideal preset magnification is an integer. If the current preset magnification N0 is calculated to be a non-integer based on the time width Ty of the sample signal and the time width T3 of the third signal, the resistance value of the amplifying unit 20 and / or the comparative voltage value input to the comparator can be adjusted until the preset magnification N0 after adjustment is an integer, and the configuration of the resistance value of the amplifying unit 20 and the configuration of the comparative voltage value input to the comparator are completed. When detecting the first signal, the same resistor value configuration and the comparison voltage value configuration at the comparator input are adopted, that is, the time width of the first signal can be amplified by a preset factor to obtain the second signal.

[0067] See also Figure 7 In some embodiments, the input unit 10 includes a trigger (TRIG), which is electrically connected to the first signal source and configured to trigger the first signal source to input the first signal. The amplification unit 20 also includes a discharger (Discharge), which is electrically connected to the first capacitor and configured to release the charge of the first capacitor when the first switch is disconnected. The trigger and the discharger are used for timing control of the second signal to more accurately record the time width of the second signal.

[0068] Please combine Figure 7 and Figure 8 In one embodiment, the output unit 40 includes a comparator and an output terminal (output), and the output terminal is connected to the calculation unit 50. The steps of detecting the time width of the first signal are as follows:

[0069] S1: Trigger input is suspended, triggers the first signal source to input the first signal, and the discharger input is suspended.

[0070] S2: At the beginning of the first signal, the voltage across the first capacitor C1 rises. When the voltage across the first capacitor C1 is greater than or equal to the comparison voltage value U1 input to the comparator, the output terminal outputs a high level to output the second signal. When the calculation unit 50 detects the beginning of the second signal, it records the first count value A of the counter.

[0071] S3: When the trigger detects the end of the first signal, the trigger changes to a low level output to cut off the first signal source from inputting the first signal to the amplifier unit 20. In this way, the charge Q accumulated by the first capacitor C1 is the charge accumulated in the time width T1 of the first signal. After the trigger changes to a low level output, the first capacitor C1 is discharged only according to the charge Q accumulated in the time width T1 of the first signal, so that the discharge of the first capacitor C1 is not affected by the signal source.

[0072] S4: When the voltage across the first capacitor C1 is less than the comparison voltage value U1 input to the comparator, the output terminal is changed to a low level output to stop outputting the second signal. When the calculation unit 50 detects the end of the second signal, it records the second count value B of the counter.

[0073] S5: After the calculation unit 50 completes recording the second count value B of the counter, the discharger outputs a low level to discharge the charge of the first capacitor C1. In this way, the residual charge of the first capacitor C1 can be prevented from affecting the calculation of the next detection, ensuring that the charging and discharging of the first capacitor C1 in each detection is only affected by the time width of the first signal during the current detection, thereby ensuring accurate calculation.

[0074] S6: The calculation unit 50 calculates the time width T1 of the first signal, T1=T2 / N0=(BA) / N0, wherein T2 is the time width of the second signal, and N0 is a preset magnification.

[0075] See also Fig. 9 , the present application provides a time amplification method, the time amplification method comprising:

[0076] S901: providing a first signal;

[0077] S902: controlling the first charge-discharge circuit 21 to charge when the start of the first signal is detected;

[0078] S903: controlling the first charge-discharge circuit 21 to discharge when the end of the first signal is detected; and

[0079] S904: Based on the input first signal, a second signal is output according to a preset ratio and a voltage value of the first charge and discharge circuit 21, and a time width of the second signal is greater than a time width of the first signal.

[0080] In some embodiments, the above-mentioned time amplification method can be applied to a device such as a processor or a processing chip to output a second signal that amplifies a preset magnification according to the first signal to provide a second signal that is more easily detected. The time width of the first signal can be calculated by combining the time width of the second signal and the preset magnification, so as to accurately obtain the time width of the first signal when the time width of the first signal is small and difficult to detect.

[0081] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. At the same time, other implementation methods can be derived from the above embodiments, so that structural and logical replacements and changes can be made without departing from the scope of this disclosure.

[0082] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. An aerosol generating device, characterized in that: The aerosol generating device comprises a time magnification system, the time magnification system comprising: an input unit configured to provide a first signal; an amplifying unit, electrically connected to the input unit, the amplifying unit comprising a first charging and discharging circuit; a driving unit, electrically connected to the input unit and the amplifying unit, respectively, the driving unit being configured to: control the first charging and discharging circuit to charge when the start of the first signal is detected; and control the first charging and discharging circuit to discharge when the end edge of the first signal is detected; and An output unit is electrically connected to the amplification unit, and is configured to: based on the input first signal, output a second signal according to a preset ratio and the voltage value of the first charge and discharge circuit, and the time width of the second signal is greater than the time width of the first signal.

2. The aerosol generating device according to claim 1, characterized in that The aerosol generating device also includes an electromagnetic heating system, which includes an electromagnetic heating circuit and a sampling circuit. The sampling circuit is configured to: output a sampling signal when a preset sampling condition is met, and the input unit is configured to provide the first signal according to the sampling signal, wherein, within a preset sampling period, the duration of the first signal corresponds to the duration of the sampling signal.

3. The aerosol generating device according to claim 1, characterized in that The first charge-discharge circuit includes a first capacitor, a charging resistor, a discharging resistor and a first switch, the resistance of the charging resistor is smaller than the resistance of the discharging resistor, the first capacitor and the charging resistor form a charging loop, and the discharging resistor and the first capacitor form a discharging loop; The first switch is configured to be switchable between a first state and a second state; The driving unit is configured to: when the first signal starts, control the first switch to switch to the first state, so that the charging circuit is turned on and the discharging circuit is turned off; when the first signal ends, control the first switch to switch to the second state, so that the charging circuit is turned off and the discharging circuit is turned on.

4. The aerosol generating device according to claim 3, characterized in that The amplifying unit further includes a discharger, which is electrically connected to the first capacitor and is configured to release the charge of the first capacitor when the first switch is disconnected.

5. The aerosol generating device according to claim 1, characterized in that The time amplification system further includes a calculation unit, which is electrically connected to the output unit and is configured as follows: Acquiring the time width and the preset magnification of the second signal; and The time width of the first signal is calculated according to the time width of the second signal and the preset magnification.

6. The aerosol generating device according to claim 5, characterized in that The calculation unit includes a counter and an adder. The counter is configured to: record a first count value when the start of the second signal is detected; and record a second count value when the end of the second signal is detected; The adder is configured to obtain a time width of the second signal according to a difference between the second count value and the first count value.

7. The aerosol generating device according to claim 6, characterized in that The input unit is configured to input a sample signal, wherein the sample signal has a known time width; The driving unit is configured to: control the first charge-discharge circuit to charge when the start of the sample signal is detected; and control the first charge-discharge circuit to discharge when the end of the sample signal is detected; The output unit is configured to: output a third signal according to the voltage value of the first charge and discharge circuit based on the input sample signal; The calculation unit is configured to obtain the preset magnification according to a time width of the sample signal and a time width of the third signal.

8. The aerosol generating device according to claim 1, characterized in that The input unit includes a trigger, the trigger is electrically connected to the driving unit, and the trigger is configured to trigger the first signal to be input into the driving unit.

9. The aerosol generating device according to claim 1, characterized in that The output unit comprises a comparator, and the comparator is configured to: Acquiring a voltage value and a comparison voltage value of the first charge and discharge circuit; and When the voltage value of the first charge and discharge circuit is greater than or equal to the comparison voltage value, outputting the second signal; Wherein, the comparison voltage value is set based on the preset ratio.

10. A time magnification method, characterized in that: The time amplification method comprises: providing a first signal; controlling the first charge-discharge circuit to charge when the start of the first signal is detected; controlling the first charge-discharge circuit to discharge when the end of the first signal is detected; and Based on the input first signal, a second signal is output according to a preset ratio and a voltage value of the first charge and discharge circuit, and a time width of the second signal is greater than a time width of the first signal.

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