CN212464910U - Smoking set control circuit and smoking set - Google Patents
Smoking set control circuit and smoking set Download PDFInfo
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- CN212464910U CN212464910U CN202020025975.0U CN202020025975U CN212464910U CN 212464910 U CN212464910 U CN 212464910U CN 202020025975 U CN202020025975 U CN 202020025975U CN 212464910 U CN212464910 U CN 212464910U
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Abstract
The application relates to the field of smoking set, and provides a smoking set control circuit and a smoking set, wherein the smoking set control circuit comprises a first voltage regulating circuit, and is used for regulating the voltage output by a power supply circuit to a first voltage; the first switch circuit is connected between the power supply circuit and the first voltage regulating circuit; a second voltage regulating circuit for regulating the voltage output by the power supply circuit to a second voltage; the second switch circuit is connected between the power supply circuit and the second voltage regulating circuit; the microcontroller is configured to control the first switching circuit and the first voltage regulating circuit to work, and the second switching circuit and the second voltage regulating circuit to be closed; or the first switch circuit and the first voltage regulating circuit are controlled to be closed, and the second switch circuit and the second voltage regulating circuit are controlled to work. This application provides the voltage regulating circuit of two way different voltages for the heater of smoking set, has avoided adopting the problem that the power utilization rate that single discrete device voltage regulating circuit exists is low, has improved power utilization rate and power ripple is little.
Description
Technical Field
The application relates to the technical field of smoking sets, in particular to a smoking set control circuit and a smoking set.
Background
Articles such as cigarettes, cigars and the like burn tobacco during use to produce tobacco smoke. Attempts have been made to provide alternatives to these tobacco-burning articles by creating products that release compounds without burning. Examples of such products are so-called heat non-combustible products, also known as tobacco heating products, or tobacco heating devices, which release compounds by heating the material without combusting it. The material may be, for example, tobacco or other non-tobacco products or combinations, such as blended mixtures that may or may not contain nicotine.
The existing smoking set which is heated at low temperature and is not combusted generally adopts a voltage regulating circuit of discrete devices (inductors, switching tubes and the like), namely when loads need different powers, the voltage regulating circuit built by the discrete devices obtains required voltage and then provides the voltage to a heater in the smoking set for heating.
The voltage regulating circuit adopting the discrete device has the problems of low power utilization rate and restriction on the miniaturization development of the smoking set.
SUMMERY OF THE UTILITY MODEL
The application provides a smoking set control circuit and smoking set, aims at solving the problem that the power utilization rate is low that the voltage regulating circuit of the prior smoking set adopting discrete devices exists.
This application first aspect provides a smoking set control circuit, including power supply circuit, still includes:
a first voltage regulating circuit for regulating the voltage outputted from the power supply circuit to a first voltage;
a first switching circuit connected between the power supply circuit and the first voltage regulating circuit;
a second voltage regulating circuit for regulating the voltage outputted from the power supply circuit to a second voltage;
a second switching circuit connected between the power supply circuit and the second voltage regulating circuit;
the microcontroller is respectively electrically connected with the first switch circuit, the first voltage regulating circuit, the second switch circuit and the second voltage regulating circuit; the microcontroller is configured to control the first switching circuit and the first voltage regulating circuit to work, and simultaneously control the second switching circuit and the second voltage regulating circuit to be closed; or, the second switch circuit and the second voltage regulating circuit are controlled to work, and the first switch circuit and the first voltage regulating circuit are closed at the same time;
the first voltage and the second voltage are both used for heating a heater of a smoking set, and the first voltage is greater than the second voltage.
A second aspect of the present application provides a smoking article comprising a heater and the smoking article control circuit of the first aspect.
The application provides a smoking set control circuit and smoking set provides the voltage regulating circuit of two way different voltages for the heater of smoking set, has avoided adopting the problem that the power utilization rate that single discrete device voltage regulating circuit exists is low, has improved power utilization rate and power ripple is little.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic block diagram of a smoking set control circuit provided in an embodiment of the present application;
fig. 2 is a schematic block diagram of a first voltage regulating circuit in a smoking set control circuit according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a first switch circuit and a power supply circuit in a smoking set control circuit according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a driving circuit in a smoking article control circuit according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of a boost circuit in a smoking article control circuit according to an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of a second switch circuit and a second voltage regulator circuit in the smoking article control circuit according to an embodiment of the present disclosure;
FIG. 7 is a schematic diagram of a temperature profile provided in accordance with an embodiment of the present application;
fig. 8 is a schematic view of a smoking set according to a second embodiment of the present disclosure.
Detailed Description
To facilitate an understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and detailed description. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "left", "right", "inner", "outer" and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Implementation mode one
As shown in fig. 1, a smoking set control circuit provided in the first embodiment of the present disclosure includes a power circuit 11, a first switch circuit 12, a first voltage regulating circuit 13, a second switch circuit 14, a second voltage regulating circuit 15, and a microcontroller 16.
The first voltage regulating circuit 13 regulates the voltage output from the power supply circuit 11 to a first voltage.
Referring to fig. 2, in the present example, the first voltage regulating circuit 13 includes a power supply circuit 131, a driving circuit 132, and a voltage boosting circuit 133;
a power supply circuit 131, a power supply input end of which is connected with the first switch circuit 12, and a power supply output end of which is connected with the drive circuit 132; the power supply circuit 131 is used for supplying power to the driving circuit 132;
a power supply end of the driving circuit 132 is connected to a power supply output end of the power supply circuit 131, a signal input end is used for receiving a driving signal provided by the microcontroller 16, and a signal output end outputs a driving control signal; the drive control signal is used to control the voltage boosting circuit 133 to adjust the voltage output by the power supply circuit 11 to a first voltage;
the power input end of the booster circuit 133 is connected with the power circuit 11, the power output end of the booster circuit is connected with the heater 17 of the smoking set, the signal receiving end is used for receiving the driving control signal output by the driving circuit 132, and the signal control end is used for receiving the first control signal output by the microcontroller 16; the first control signal is used to control the turn-on and turn-off of the boost circuit 133.
As will be understood with reference to fig. 3-5, in an example, the power supply circuit 131 includes an integrated chip U5 and its peripheral circuits, pins (VIN, EN) of the integrated chip U5 are connected to the first switch circuit 12, and a pin VOUT of the integrated chip U5 is filtered and then connected to the driving circuit 132 (shown as 10 — 8VDD in the figure).
The driving circuit 132 includes an integrated chip U2 and its peripheral circuits, the pin VDD of the integrated chip U2 is connected to 10_8VDD, that is, to the pin VOUT of the integrated chip U5, the signal input pins EN, HI, and LI of the integrated chip U2 are respectively used for receiving the driving signals BOOST _ PWM _ EN, BOOST _ PWM _ HI, and BOOST _ PWM _ LI provided by the microcontroller 16, and the signal output pins HO and LO of the integrated chip U2 are respectively used for outputting the driving control signals BOOST _ HO and BOOST _ LO. The driving control signals BOOST _ HO and BOOST _ LO are used to control the voltage BOOST circuit 133 to adjust the voltage output by the power supply circuit 11 to the first voltage.
The boost circuit 133 comprises a first switching tube Q1, a second switching tube Q2, a charging circuit L1, a third switching tube Q3 and a fourth switching tube Q4;
a first switch tube Q1, the input end of which is connected to the power circuit 11 (shown IN BAT _ IN the figure), the output end of which is connected to one end of the charging circuit L1, the other end of the charging circuit L1 is connected to the input end of a third switch tube Q3 and the input end of a fourth switch tube Q4, and the control end of which is connected to the input end of a second switch tube Q2;
the output end of the second switching tube Q2 is grounded, and the control end is used for receiving a control signal EN _ VCC output by the microcontroller 16; the control signal EN _ VCC is used for controlling the on and off of the second switch tube Q2, and further controlling the on and off of the first switch tube Q1;
the output end of the third switching tube Q3 is grounded, and the control end is used for receiving the driving control signal BOOST _ LO output by the integrated chip U2 in the driving circuit 132;
and the output end of the fourth switching tube Q4 is connected to the heater 17 (shown as V +2 and V-2 in the figure) of the smoking set, and the control end is used for receiving the driving control signal BOOST _ HO output by the integrated chip U2 in the driving circuit 132.
In this example, the charging circuit L1 is an inductor, the first switching transistor Q1 is a PMOS transistor, and the second switching transistor Q2, the third switching transistor Q3 and the fourth switching transistor Q4 are all NMOS transistors. The third switch tube Q3 and the fourth switch tube Q4 adopt high-power NMOS tubes, and the second switch tube Q2 adopts low-power NMOS tubes. When the switch tube is an NMOS tube, the drain electrode of the NMOS tube is used as an input end, the source electrode of the NMOS tube is used as an output end, and the grid electrode of the NMOS tube is used as a control end; when the switch tube is a PMOS tube, the source electrode of the PMOS tube is used as the input end, the drain electrode of the PMOS tube is used as the output end, and the grid electrode of the PMOS tube is used as the control end. Hereinafter, the description will be omitted.
The boost circuit 133 further includes a filter circuit (shown as C8, C9, and C32) connected between the output of the fourth switching tube Q4 and the heater 17 of the smoking article.
The first switch circuit 12 is connected between the power supply circuit 11 and the first voltage regulator circuit 13.
Referring again to fig. 3, in an example, the first switch circuit 12 includes a fifth switch Q5 and a sixth switch Q6;
an input end of the fifth switching tube Q5 is connected with the power circuit 11 (shown IN BAT _ IN the figure), an output end of the fifth switching tube Q5 is connected with pins (VIN, EN) of the integrated chip U5, and a control end of the fifth switching tube Q5 is connected with an input end of the sixth switching tube Q6;
the output end of the sixth switching tube Q6 is grounded, and the control end is used for receiving the control signal 10V8_ EN output by the microcontroller 16; the control signal 10V8_ EN is used to control the sixth switch tube Q6, and therefore the fifth switch tube Q5, to be turned on and off.
In this example, the fifth switching tube Q5 is a PMOS tube, and the sixth switching tube Q6 is an NMOS tube.
A second voltage regulating circuit 15 for regulating the voltage outputted from the power supply circuit 11 to a second voltage; a second switching circuit 14 connected between the power supply circuit 11 and the second voltage regulating circuit 15;
a microcontroller 16 connected to the first switching circuit 12, the first voltage regulating circuit 13, the second switching circuit 14, and the second voltage regulating circuit 15, respectively; the microcontroller 16 is configured to control the first switch circuit 12 and the first voltage regulating circuit 13 to work, and the second switch circuit 14 and the second voltage regulating circuit 15 to be closed; or, the first switch circuit 12 and the first voltage regulating circuit 13 are controlled to be closed, and the second switch circuit 14 and the second voltage regulating circuit 15 are controlled to work;
wherein, the first voltage and the second voltage are both used for providing the heater of the smoking set for heating 17, and the first voltage is greater than the second voltage.
Referring to fig. 6, in an example, the second voltage regulating circuit 15 includes an integrated voltage regulating chip U8 and its peripheral circuits, a seventh switch Q7 and an eighth switch Q8;
an input end pin (VIN, EN) of the integrated voltage regulating chip U8 is connected with the second switch circuit 14, and an output end pin VOUT is connected with the input end of the seventh switch tube Q7; the integrated voltage regulating chip U8 is used to regulate the voltage output by the power circuit 11 to a second voltage.
A seventh switch tube Q7, the output end of which is connected with the heater of the smoking set (shown as V +2 and V-2 in the figure), and the control end of which is connected with the input end of the eighth switch tube Q8;
an eighth switch tube Q8, having an output end grounded and a control end for receiving a control signal EN _ KEEP _ TEMP2 output by the microcontroller 16; the control signal EN _ KEEP _ TEMP2 is used to control the eighth switch Q8 to be turned on and off, and further to control the seventh switch Q7 to be turned on and off.
In this example, the seventh switch transistor Q7 is a PMOS transistor, and the eighth switch transistor Q8 is an NMOS transistor.
Referring to fig. 6 again, the second switch circuit 14 includes a ninth switch Q9 and a tenth switch Q10;
a ninth switching tube Q9, an input end of which is connected to the power circuit 11 (shown IN BAT _ IN the figure), an output end of which is connected to input end pins (VIN, EN) of an integrated voltage regulation chip U8 IN the second voltage regulation circuit 15, and a control end of which is connected to an input end of a tenth switching tube Q10;
the tenth switching tube Q10 has an output end grounded, and a control end for receiving the control signal EN _ KEEP _ TEMP1 output by the microcontroller 16; the control signal EN _ KEEP _ TEMP1 is used to control the tenth switching tube Q10 to be turned on and off, and further to control the ninth switching tube Q9 to be turned on and off.
In this example, the ninth switching transistor Q9 is a PMOS transistor, and the tenth switching transistor Q10 is an NMOS transistor.
Referring again to fig. 1, in one example, the smoking article control circuit further includes a temperature detection circuit 18;
a temperature detection circuit 18 for detecting the temperature of the heater 17 of the smoking set;
a microcontroller 16 configured to control the first switching circuit 12 and the first voltage regulating circuit 13 to operate and the second switching circuit 14 and the second voltage regulating circuit 15 to be turned off when the heater 17 of the smoking set is in a preheating temperature rise stage; when the heater 17 of the smoking set is in the heat preservation stage, the first switch circuit 12 and the first voltage regulating circuit 13 are controlled to be closed, and the second switch circuit 14 and the second voltage regulating circuit 15 are controlled to work.
In this example, the temperature detection circuit 18 includes a temperature sensing device (e.g., a thermistor), and the microcontroller 16 can calculate the temperature of the heater 17 of the smoking set after sampling the voltage across the temperature sensing device, and determine whether the heater 17 is in the warm-up stage or the warm-up stage according to the calculated temperature.
In this example, the microcontroller 16 may employ an STM32G0 series MCU. The STM32G0 series MCU is internally provided with a hardware oversampling function, and the ADC sampling frequency is set through an oversampling principle. Specifically, the number of sampling points is increased to 256 times to increase the number of 4-bit sampling bits, and finally a 16-bit sampling result is obtained. The sampling precision and the resolution of the temperature detection circuit 18 are improved, and the mantissa jitter is effectively reduced.
The operation of the smoking article control circuit of the present example is described below with reference to the temperature profile shown in fig. 7:
as shown in fig. 7, the temperature of the heater gradually rises from the initial temperature to the maximum temperature T1 (this stage may be referred to as a warm-up stage) when the smoking article is activated. The time taken in the temperature rise stage is S1, which is typically several tens of seconds in a short period, but the output power is particularly high, the output voltage is high, and the output current is large.
After rising to the maximum temperature T1, the temperature of the heater is maintained within a certain temperature range or at a preset temperature value (this stage may be referred to as a heat-preservation stage). The duration of the heat preservation stage is as long as several minutes, but the output power is relatively low, the output voltage is relatively small, and the output current is small.
1) Preheating and temperature rising stage
During the preheating and temperature rising stage, the microcontroller 16 controls the tenth switching tube Q10 to be turned off through the control signal EN _ KEEP _ TEMP1, and further turns off the ninth switching tube Q9; the eighth switching tube Q8 is controlled to be disconnected by a control signal EN _ KEEP _ TEMP2, and then the seventh switching tube Q7 is disconnected; that is, both the second switching circuit 14 and the second voltage regulating circuit 15 are turned off, and the integrated voltage regulating chip U8 stops operating.
Then, the microcontroller 16 controls the sixth switching tube Q6 to be turned on through a control signal 10V8_ EN, and further controls the fifth switching tube Q5 to be turned on; the power circuit 11 is conducted with the integrated chip U5, and the integrated chip U5 boosts the voltage to supply power to the integrated chip U2.
The microcontroller 16 controls the conduction of the second switch Q2 through the control signal EN _ VCC, and further controls the conduction of the first switch Q1. The microcontroller 16 provides the drive signals BOOST _ PWM _ EN (high), BOOST _ PWM _ HI, BOOST _ PWM _ LI (PWM signal) to the integrated chip U2 so that the integrated chip U2 outputs the drive control signals BOOST _ HO, BOOST _ LO. The driving control signals BOOST _ HO and BOOST _ LO control the third switching tube Q3 and the fourth switching tube Q4 to be turned on and off: when the third switching tube Q3 is turned on and the fourth switching tube Q4 is turned off, the power circuit 11 charges the inductor L1 through the first switching tube Q1; when the third switching tube Q3 is turned off and the fourth switching tube Q4 is turned on, the inductor L1 superimposes the voltage of the power supply circuit 11 with the reverse electromotive force, so that a higher voltage is output through the fourth switching tube Q4, and finally, the higher voltage is filtered through the filter circuit (filter capacitors C8, C39 and C32) to form a stable voltage which is supplied to the heaters (V +2 and V-2) for heating and temperature rise.
2) And a heat preservation stage
In the heat preservation stage, the microcontroller 16 controls the second switching tube Q2 to be disconnected through the control signal EN _ VCC, and further controls the first switching tube Q1 to be disconnected; the sixth switching tube Q6 is controlled to be switched off by a control signal 10V8_ EN, and the fifth switching tube Q5 is controlled to be switched off; providing a low signal (BOOST _ PWM _ EN, BOOST _ PWM _ HI, BOOST _ PWM _ LI) to the ic U2 turns off the ic U2, which in turn turns off the first switch circuit 12 and the first voltage regulator circuit 13.
Then, the microcontroller 16 controls the tenth switching tube Q10 to be turned on by the control signal EN _ KEEP _ TEMP1, and further turns on the ninth switching tube Q9; the eighth switching tube Q8 is controlled to be conducted through a control signal EN _ KEEP _ TEMP2, and further the seventh switching tube Q7 is conducted; that is, the second switching circuit 14 and the second voltage regulating circuit 15 are both turned on, and the integrated voltage regulating chip U8 starts to operate. The power circuit 11 is supplied to the heaters (V +2, V-2) for heating and temperature rise after being subjected to voltage regulation by the integrated voltage regulation chip U8.
Second embodiment
Fig. 8 is a smoking set provided in the second embodiment of the present application, and the smoking set 100 includes a heater and the smoking set control circuit described in the first embodiment.
The heater can be a central heating mode (the periphery of the heating body is in direct contact with the aerosol forming substrate) and a peripheral heating mode (the cylindrical heating body wraps the aerosol forming substrate), and the heater can also be used for heating the aerosol forming substrate through one or more modes of heat conduction, electromagnetic induction, chemical reaction, infrared action, resonance, photoelectric conversion and photo-thermal conversion to generate aerosol which can be sucked. Infrared heaters are preferred.
It should be noted that the description of the present application and the accompanying drawings set forth preferred embodiments of the present application, however, the present application may be embodied in many different forms and is not limited to the embodiments described in the present application, which are not intended as additional limitations to the present application, but are provided for the purpose of providing a more thorough understanding of the present disclosure. Moreover, the above-mentioned technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope described in the present specification; further, modifications and variations may occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the scope of the appended claims.
Claims (14)
1. The utility model provides a smoking set control circuit, includes power supply circuit, its characterized in that still includes:
a first voltage regulating circuit for regulating the voltage outputted from the power supply circuit to a first voltage;
a first switching circuit connected between the power supply circuit and the first voltage regulating circuit;
a second voltage regulating circuit for regulating the voltage outputted from the power supply circuit to a second voltage;
a second switching circuit connected between the power supply circuit and the second voltage regulating circuit;
the microcontroller is respectively electrically connected with the first switch circuit, the first voltage regulating circuit, the second switch circuit and the second voltage regulating circuit; the microcontroller is configured to control the first switching circuit and the first voltage regulating circuit to work, and simultaneously control the second switching circuit and the second voltage regulating circuit to be closed; or, the second switch circuit and the second voltage regulating circuit are controlled to work, and the first switch circuit and the first voltage regulating circuit are closed at the same time;
the first voltage and the second voltage are both used for heating a heater of a smoking set, and the first voltage is greater than the second voltage.
2. The smoking article control circuit of claim 1, wherein the first voltage regulating circuit comprises a power supply circuit, a driver circuit, and a boost circuit;
the power supply input end of the power supply circuit is connected with the first switch circuit, and the power supply output end of the power supply circuit is connected with the driving circuit; the power supply circuit is used for supplying power to the driving circuit;
the power end of the driving circuit is connected with the power output end of the power supply circuit, the signal input end is used for receiving a driving signal provided by the microcontroller, and the signal output end outputs a driving control signal; the driving control signal is used for controlling the voltage boosting circuit to adjust the voltage output by the power supply circuit to a first voltage;
the power input end of the booster circuit is connected with the power circuit, the power output end of the booster circuit is connected with the heater of the smoking set, the signal receiving end is used for receiving the driving control signal output by the driving circuit, and the signal control end is used for receiving the first control signal output by the microcontroller; the first control signal is used for controlling the on and off of the boosting circuit.
3. The smoking article control circuit of claim 2, wherein the boost circuit comprises a first switching tube, a second switching tube, a charging circuit, a third switching tube and a fourth switching tube;
the input end of the first switch tube is connected with the power supply circuit, the output end of the first switch tube is connected with one end of the charging circuit, the input end of the third switch tube and the input end of the fourth switch tube are connected at the other end of the charging circuit, and the control end of the first switch tube is connected with the input end of the second switch tube;
the output end of the second switch tube is grounded, and the control end of the second switch tube is used for receiving the first control signal; the first control signal is used for controlling the on and off of the second switch tube so as to control the on and off of the first switch tube;
the output end of the third switching tube is grounded, and the control end of the third switching tube is used for receiving a first driving control signal output by the driving circuit;
and the output end of the fourth switching tube is connected with the heater of the smoking set, and the control end of the fourth switching tube is used for receiving a second driving control signal output by the driving circuit.
4. The smoking article control circuit of claim 3, wherein the charging circuit comprises an inductor.
5. The smoking article control circuit of claim 3, wherein the first switch tube is a PMOS tube, and the second switch tube, the third switch tube and the fourth switch tube are NMOS tubes.
6. A smoking article control circuit according to claim 3, wherein the boost circuit further comprises a filter circuit connected between the output of the fourth switching tube and the heater of the smoking article.
7. The smoking article control circuit of claim 1, wherein the first switching circuit comprises a fifth switching tube and a sixth switching tube;
the input end of the fifth switching tube is connected with the power circuit, the output end of the fifth switching tube is connected with the first voltage regulating circuit, and the control end of the fifth switching tube is connected with the input end of the sixth switching tube;
the output end of the sixth switching tube is grounded, and the control end of the sixth switching tube is used for receiving a second control signal output by the microcontroller; the second control signal is used for controlling the connection and disconnection of the sixth switching tube, and further controlling the connection and disconnection of the fifth switching tube.
8. The smoking article control circuit of claim 7, wherein the fifth switching tube is a PMOS tube and the sixth switching tube is an NMOS tube.
9. The smoking article control circuit of claim 1, wherein the second voltage regulating circuit comprises an integrated voltage regulating chip, a seventh switching tube and an eighth switching tube;
the input end of the integrated voltage regulating chip is connected with the second switch circuit, and the output end of the integrated voltage regulating chip is connected with the input end of the seventh switch tube; the integrated voltage regulating chip is used for regulating the voltage output by the power supply circuit to a second voltage;
the output end of the seventh switch tube is connected with the heater of the smoking set, and the control end of the seventh switch tube is connected with the input end of the eighth switch tube;
the output end of the eighth switching tube is grounded, and the control end of the eighth switching tube is used for receiving a third control signal output by the microcontroller; the third control signal is used for controlling the eighth switching tube to be switched on and off, and further controlling the seventh switching tube to be switched on and off.
10. The smoking article control circuit of claim 9, wherein the seventh switching transistor is a PMOS transistor, and the eighth switching transistor is an NMOS transistor.
11. The smoking article control circuit of claim 1, wherein the second switching circuit comprises a ninth switching tube and a tenth switching tube;
the input end of the ninth switching tube is connected with the power circuit, the output end of the ninth switching tube is connected with the second voltage regulating circuit, and the control end of the ninth switching tube is connected with the input end of the tenth switching tube;
the output end of the tenth switching tube is grounded, and the control end of the tenth switching tube is used for receiving a fourth control signal output by the microcontroller; the fourth control signal is used for controlling the tenth switching tube to be switched on and off, and further controlling the ninth switching tube to be switched on and off.
12. The smoking article control circuit of claim 11, wherein the ninth switching transistor is a PMOS transistor and the tenth switching transistor is an NMOS transistor.
13. A smoking article control circuit according to any one of claims 1-12, further comprising a temperature sensing circuit;
the temperature detection circuit is used for detecting the temperature of the heater of the smoking set;
the microcontroller is configured to control the first switching circuit and the first voltage regulating circuit to work and the second switching circuit and the second voltage regulating circuit to be closed when a heater of the smoking set is in a preheating temperature rise stage; and when the heater of the smoking set is in a heat preservation stage, the first switch circuit and the first voltage regulating circuit are controlled to be closed, and the second switch circuit and the second voltage regulating circuit are controlled to work.
14. A smoking article, wherein said smoking article comprises a heater and a smoking article control circuit according to any one of claims 1-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020025975.0U CN212464910U (en) | 2020-01-07 | 2020-01-07 | Smoking set control circuit and smoking set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020025975.0U CN212464910U (en) | 2020-01-07 | 2020-01-07 | Smoking set control circuit and smoking set |
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| Publication Number | Publication Date |
|---|---|
| CN212464910U true CN212464910U (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020025975.0U Active CN212464910U (en) | 2020-01-07 | 2020-01-07 | Smoking set control circuit and smoking set |
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| CN (1) | CN212464910U (en) |
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