WO2018161610A1 - Circuit de commande d'atomisation et cigarette électronique - Google Patents

Circuit de commande d'atomisation et cigarette électronique Download PDF

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Publication number
WO2018161610A1
WO2018161610A1 PCT/CN2017/108268 CN2017108268W WO2018161610A1 WO 2018161610 A1 WO2018161610 A1 WO 2018161610A1 CN 2017108268 W CN2017108268 W CN 2017108268W WO 2018161610 A1 WO2018161610 A1 WO 2018161610A1
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WO
WIPO (PCT)
Prior art keywords
circuit
atomization
output
controller
feedback
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PCT/CN2017/108268
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English (en)
Chinese (zh)
Inventor
邱伟华
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常州市派腾电子技术服务有限公司
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Publication of WO2018161610A1 publication Critical patent/WO2018161610A1/fr

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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/90—Arrangements or methods specially adapted for charging batteries thereof
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10—Devices using liquid inhalable precursors

Definitions

  • the utility model relates to the technical field of electronic cigarettes, in particular to an atomization control circuit and an electronic cigarette.
  • Electronic cigarettes are electronic products that mimic cigarettes and have the same appearance, smoke, taste and feel as cigarettes. It is a product that allows users to use nicotine and the like after being atomized by means of atomization.
  • the atomization circuit of the conventional electronic cigarette usually adopts one or two signal boosting ICs (integrated circuits), two or four large current MOS tubes and one power inductor to form a half bridge or a full bridge circuit to achieve
  • the purpose of outputting constant power is, but the cost is also increased due to the large amount of electronic materials used.
  • An atomization control circuit for controlling a voltage applied to a heating element, the atomization control circuit comprising a controller and an atomizing circuit; a power input end of the controller, and a power input end of the atomizing circuit Connecting a power source respectively; a first input end of the controller is connected to a feedback end of the atomization circuit, an output end of the controller is connected to a control input end of the atomization circuit; an output of the atomization circuit An end for connecting to the heating element;
  • the controller is configured to output a corresponding control signal according to a signal fed back by the feedback end of the atomization circuit; the atomization circuit is configured to output a direct current to the heating element under the control of the controller to The liquid is atomized.
  • the atomization circuit includes an energy storage unit, a synchronous buck converter, and a DC conversion unit; one end of the energy storage unit and the input end of the synchronous buck converter jointly access the a power source, the other end of the energy storage unit is grounded; a control signal input end of the synchronous buck converter, The enable end is respectively connected to the controller; the feedback end of the synchronous buck converter is a feedback end of the atomization circuit; the output end of the synchronous buck converter and the input end of the DC conversion unit Connecting; the output end of the DC conversion unit is an output end of the atomization circuit.
  • the energy storage unit includes at least one storage capacitor.
  • the DC conversion unit includes a power inductor and at least one filter capacitor; one end of the power inductor is connected to an output end of the synchronous buck converter; and the other end of the power inductor is sequentially One end of the filter capacitor is connected; the other end of each of the filter capacitors is grounded; the common end of the power inductor and each of the filter capacitors is an output end of the DC conversion unit.
  • the atomization control circuit further includes a feedback unit; an input end of the feedback unit is connected to an output end of the atomization circuit, and an output end of the feedback unit and the controller The two input terminals are connected; the feedback unit is configured to feed back the output voltage of the atomization circuit to the controller.
  • the feedback unit includes a resistor R10, a resistor R12, and a capacitor C44;
  • One end of the resistor R10 is connected to the output end of the atomization circuit, and the other end of the resistor R10 is respectively connected to one end of the resistor R12 and one end of the capacitor C44; the other end of the resistor R12 is The other end of the capacitor C44 is commonly grounded; the common end of the resistor R10, the resistor R12 and the capacitor C44 is the output end of the feedback unit.
  • the atomization control circuit further includes a charging circuit; an input end of the charging circuit is connected to an output end of the atomizing circuit, and an output end of the charging circuit is used to supply power to an external device.
  • the charging circuit includes a USB charging unit; the USB charging unit is configured to supply power to the external device with a voltage of 5V.
  • the USB charging unit includes a diode and a USB interface; a cathode of the diode is connected to an output of the atomizing circuit, and a cathode of the diode is connected to the USB interface.
  • An electronic cigarette comprising: an atomization control circuit and a heating element; the atomization control circuit is for controlling a voltage applied on the heating element; and the atomization control circuit comprises: a controller and an atomization circuit The power input end of the controller and the power input end of the atomization circuit are respectively connected to the power source; a first input end of the controller is coupled to a feedback end of the atomization circuit, an output end of the controller is coupled to a control input end of the atomization circuit; an output end of the atomization circuit is Heating element connection;
  • the controller is configured to output a corresponding control signal according to a signal fed back by the feedback end of the atomization circuit; the atomization circuit is configured to output a direct current to the heating element under the control of the controller to The liquid is atomized.
  • the above-mentioned atomization control circuit and the electronic cigarette have the beneficial effects that in the atomization control circuit and the electronic cigarette, the first input end of the controller is connected with the feedback end of the atomization circuit, and the output end of the controller and the atomization circuit The control input is connected. Moreover, the controller is configured to output a corresponding control signal according to the signal fed back from the feedback end of the atomizing circuit, so that the atomizing circuit can be controlled to output a direct current to the heating element at a constant power to fog the liquid. Therefore, the above-described electronic cigarette and atomization control circuit reduces the cost on the premise that a constant power can be output to the heating element.
  • FIG. 1 is a block diagram showing the composition of an atomization control circuit and a heating element according to an embodiment
  • FIG. 2 is a block diagram showing one specific composition of the atomization control circuit and the heating element of the embodiment shown in FIG. 1;
  • FIG. 3 is a specific circuit diagram of the atomization circuit, the feedback unit, the charging circuit, and the heating element in the atomization control circuit of the embodiment shown in FIG. 2.
  • the atomization control circuit includes a controller 100 and an atomization circuit 200.
  • the power input terminal of the controller 100 and the power input terminal of the atomizing circuit 200 are respectively connected to the power source 400.
  • a first input of controller 100 is coupled to a feedback terminal of atomizing circuit 200.
  • the first input end of the controller 100 is configured to receive a signal fed back by the feedback end of the atomization circuit 200, and the feedback signal is, for example, a current value of the atomization circuit 200.
  • the output of the controller 100 is coupled to the control input of the atomizing circuit 200, and the output of the controller 100 is used to output a control signal to the atomizing circuit 200.
  • the output of the atomizing circuit 200 is for connection to the heating element 300.
  • the power source 400 is used to supply power to the controller 100 and the atomizing circuit 200, respectively.
  • the controller 100 is configured to output a corresponding control signal according to a signal fed back by the feedback terminal of the atomizing circuit 200.
  • the controller 100 can adjust the power output by the atomizing circuit 200 according to the signal fed back by the atomizing circuit 200 so that the output power of the atomizing circuit 200 is kept constant. For example, if the controller 100 finds that the output power of the atomizing circuit 200 is reduced according to the feedback signal, the output power of the atomizing circuit 200 can be increased by adjusting the output control signal, and vice versa, thereby making the atomizing circuit 200 The output power remains constant.
  • the atomizing circuit 200 is configured to output a direct current to the heating element 300 under the control of the controller 100 to atomize the liquid.
  • the direct current passes through the heating element 300 and is converted into thermal energy, thereby achieving the effect of atomizing the liquid.
  • the atomization control circuit provided by the embodiment of the present invention can control the atomization circuit 200 to output constant power only by using the controller 100 and the atomization circuit 200, so that the constant power can be output to the heating element 300. Reduced costs.
  • the atomization circuit 200 includes an energy storage unit 210 , a synchronous buck converter 220 , and a DC conversion unit 230 .
  • one end of the energy storage unit 210 is synchronously stepped down
  • the input terminal (VIN pin) of the converter 220 is commonly connected to the power source 400, and the other end of the energy storage unit 210 is grounded.
  • the control signal input terminal (PWM pin) and the enable terminal (ENABLE pin) of the synchronous buck converter 220 are respectively connected to the controller 100.
  • the feedback terminal (IOUT pin) of the synchronous buck converter 220 is the feedback terminal of the atomization circuit 200.
  • the feedback terminal of the synchronous buck converter 220 is connected to the first input terminal of the controller 100. Also, the feedback terminal (IOUT pin) of the synchronous buck converter 220 inputs the current value of the synchronous buck converter 220 to the first input terminal of the controller 100.
  • the output of the synchronous buck converter 220 (VSW pin) is coupled to the input of the DC conversion unit 230.
  • the output end of the DC conversion unit 230 is the output end of the atomization circuit 200. Specifically, the output end of the DC conversion unit 230 is connected to the heating element 300.
  • the direct current passes through the heating element 300 and is converted into thermal energy, thereby achieving the effect of atomizing the liquid.
  • the energy storage unit 210 is configured to store electrical energy and output the stored electrical energy to the synchronous buck converter 220.
  • the energy storage unit 210 includes at least one storage capacitor.
  • the energy storage unit 210 may include a capacitor C43, a capacitor C34, and a capacitor C42.
  • One end of the capacitor C43, one end of the capacitor C34, and one end of the capacitor C42 are respectively connected to the power source 400.
  • the other end of the capacitor C43, the other end of the capacitor C34, and the other end of the capacitor C42 are commonly grounded.
  • the capacitor C43, the capacitor C34, and the capacitor C42 are all large-capacity capacitors, for example, 100 ⁇ F.
  • Synchronous buck converter 220 uses a MOSFET tube as the low side switch and reduces the output voltage to match the load. Both the low side MOSFET and the high side MOSFET in synchronous buck converter 220 are driven by a PWM (Pulse Width Modulation) signal. Therefore, the control signal output by the controller 100 is a PWM signal, and the controller 100 can know the change of the load according to the electrical signal fed back by the synchronous buck converter 220, for example, the current value of the synchronous buck converter 220, thereby adjusting the PWM. The duty cycle of the signal controls the power output by the synchronous buck converter 220 such that the synchronous buck converter 220 outputs a relatively stable power.
  • PWM Pulse Width Modulation
  • the duty ratio of the PWM signal output by the controller 100 may vary from 0% to 85%.
  • the signal output from the output of the synchronous buck converter 220 may be a square wave signal.
  • the synchronous buck converter 220 can output a maximum voltage of 5.5V, a maximum current of 60A, and a power of 330W.
  • the power can be taken as 75W.
  • DCDC_FB, DCDC_EN, CSP1, and TEMP_ADC represent four network lines, which are respectively connected to different pins of the controller 100.
  • the controller 100 passes the DCDC_FB
  • the network transmits a PWM signal to the input of synchronous buck converter 220.
  • the controller 100 enables the synchronous buck converter 220 through the DCDC_EN network, and the DCDC_EN network high-level synchronous buck converter 220 is activated, and the low-level synchronous buck converter 220 is turned off.
  • the magnitude of the feedback output current of the synchronous buck converter 220 can be fed back to the first input of the controller 100 via the CSP1 network.
  • the temperature of the synchronous buck converter 220 is fed back to the controller 100 through the TEMP_ADC network.
  • the peripheral device of the synchronous buck converter 220 further includes a resistor R16, a capacitor C40, a capacitor C38 and a capacitor C41.
  • the resistor R16 is a pull-down resistor.
  • One end of the capacitor C40 is grounded and the other end is connected to the power source.
  • One end of the capacitor C41 is grounded and the other end is connected.
  • TEMP_ADC the capacitor C40 is a small-capacity capacitor, and its function is to filter high-frequency clutter.
  • the capacitance of the capacitor C40 is smaller than the capacitance of the capacitor C43, the capacitor C34 and the capacitor C42, for example, the capacitance of the capacitor C40 is 0.1 ⁇ F.
  • Resistor R16 is a pull-down resistor.
  • Capacitor C38 is a bootstrap capacitor that supplies charge to the internal FET of synchronous buck converter 220.
  • Capacitor C41 is also a small-capacitance capacitor, for example, 1nF, which functions to filter clutter for the signal of the TEMP_ADC network to improve the detection accuracy of the controller 100.
  • the DC conversion unit 230 is configured to convert the signal output by the synchronous buck converter 220 into a DC signal.
  • the DC conversion unit 230 includes a power inductor and at least one filter capacitor. One end of the power inductor is connected to the output of the synchronous buck converter 220. The other end of the power inductor is sequentially connected to one end of each filter capacitor. The other end of each filter capacitor is grounded. The common end of the power inductor and each filter capacitor is the output of the DC conversion unit 230. Among them, the power inductor is used to output a sine wave.
  • the power inductor Since the output of the synchronous buck converter 220 (VSW pin) outputs a square wave signal of a large current, and when the output of the synchronous buck converter 220 (VSW pin) outputs a high level, the power inductor stores energy. When the output of the synchronous buck converter 220 (VSW pin) outputs a low level, the power inductor discharges power, and therefore, the current output by the synchronous buck converter 220 passes through the power inductor and becomes a nearly sinusoidal wave from the square wave. Filter capacitors are used for filtering.
  • the DC conversion unit 230 may include an inductor L1, a capacitor C36, a capacitor C25, a capacitor C13, and a capacitor C14.
  • One end of the inductor L1 is an input end of the DC conversion unit 230.
  • one end of the inductor L1 is connected to an output end (VSW pin) of the synchronous buck converter 220.
  • the other end of the inductor L1 is connected to one end of the capacitor C36, one end of the capacitor C25, one end of the capacitor C13, and one end of the capacitor C14.
  • the other end of the capacitor C36, the other end of the capacitor C25, the other end of the capacitor C13, and the other end of the capacitor C14 are commonly grounded.
  • the common end of the inductor L1, the capacitor C36, the capacitor C25, the capacitor C13 and the capacitor C14 is the output end of the DC conversion unit 230. Specifically, the common end of the inductor L1, the capacitor C36, the capacitor C25, the capacitor C13 and the capacitor C14 and the heating element 300 One end is connected and the other end of the heating element 300 is grounded.
  • the inductance L1 is the output power inductance. Since the output of the synchronous buck converter 220 (VSW pin) outputs a square wave signal of a large current, when the output of the synchronous buck converter 220 (VSW pin) outputs a high level, the inductor L1 stores energy. When the output of the synchronous buck converter 220 (VSW pin) outputs a low level, the inductor L1 discharges the electric energy, so that the current output from the synchronous buck converter 220 passes through the inductor L1, and the square wave becomes an approximate sine wave. Capacitor C36, capacitor C25, capacitor C13 and capacitor C14 have a filtering effect. When a similar sinusoidal current output from inductor L1 flows through these capacitors, it eventually becomes a smooth DC current. In this way, the finally obtained direct current can be converted into thermal energy by the heating element 300, thereby atomizing the liquid smoke.
  • the atomization control circuit further includes a feedback unit 600.
  • the input end of the feedback unit 600 is coupled to the output of the atomization circuit 200.
  • the input of the feedback unit 600 is coupled to the output of the DC conversion unit 230.
  • the output of feedback unit 600 is coupled to a second input of controller 100.
  • the feedback unit 600 is configured to feed back the output voltage of the atomization circuit 200 to the controller 100.
  • the signal fed back according to the output voltage and the feedback end of the synchronous buck converter 220 can be integrated.
  • the duty cycle of the PWM signal is adjusted to control the power output by the synchronous buck converter 220 such that the synchronous buck converter 220 outputs a relatively stable power.
  • the feedback unit 600 includes a resistor R10, a resistor R12, and a capacitor C44.
  • One end of the resistor R10 is connected to the output terminal of the atomizing circuit 200.
  • the other end of the resistor R10 and the resistor One end of R12 and one end of capacitor C44 are connected.
  • the other end of the resistor R12 and the other end of the capacitor C44 are commonly grounded.
  • the common end of the resistor R10, the resistor R12 and the capacitor C44 is the output end of the feedback unit 520, that is, the common end of the resistor R10, the resistor R12 and the capacitor C44 is connected to the second input terminal of the controller 100.
  • the atomization control circuit further includes a charging circuit 500.
  • the input of the charging circuit 500 is connected to the output of the atomizing circuit 200, and the output of the charging circuit 500 is used to supply power to an external device.
  • the atomization circuit 200 can output a predetermined charging voltage (for example, 5V voltage), so that the charging circuit 500 can supply power to external devices (eg, mobile phones, tablets, MP4, etc.).
  • a predetermined charging voltage for example, 5V voltage
  • the controller 100 that is, the controller atomizing circuit 200, outputs a voltage and current suitable for heating the heating element 300; when charging the external device is required, the controller 100 controls the output of the atomizing circuit 200 to be adapted.
  • the voltage and current of the charging circuit 500 Therefore, the embodiment of the present invention can realize the atomization function and the external device by only a relatively simple circuit, thereby improving the effective utilization of resources.
  • controller 100 can also control the voltage output by the atomizing circuit 200 to be kept constant according to the voltage value fed back by the feedback unit 600 to improve the stability and safety of charging.
  • the charging circuit 500 includes a USB charging unit 510.
  • the USB charging unit 510 is for supplying power to the external device with a voltage of 5V.
  • the USB charging unit 510 may include a diode D3 and a USB interface J1.
  • the anode of the diode D3 is connected to the output end of the atomizing circuit 200.
  • the cathode of the diode D3 is connected to the USB interface J1.
  • USB interface J1 is used to connect external devices.
  • the controller 100 controls the atomizing circuit 200 to output a direct current to the heating element 300 to start atomization.
  • the controller 100 detects that the output power of the atomizing circuit 200 has decreased, and can appropriately increase the duty ratio of the PWM signal.
  • the controller 100 controls the atomizing circuit 200 to output a voltage of 5 V, and then the external device can be powered by the USB charging unit 510.
  • atomization control circuit provided by the above embodiments can be applied to other technical fields besides the technical field of electronic cigarettes.
  • an electronic cigarette comprising: an atomization control circuit and a heating element.
  • the atomization control circuit is for controlling a voltage applied to the heating element.
  • the atomization control circuit includes a controller and an atomization circuit.
  • the power input end of the controller and the power input end of the atomization circuit are respectively connected to a power source.
  • a first input of the controller is coupled to a feedback end of the atomizing circuit, and an output of the controller is coupled to a control input of the atomizing circuit.
  • An output of the atomizing circuit is coupled to the heating element.
  • the electronic cigarette includes a power source for supplying electrical energy to the atomization control circuit.
  • the controller is configured to output a corresponding control signal according to a signal fed back by the feedback end of the atomization circuit.
  • the atomizing circuit is configured to output a direct current to the heating element under the control of the controller to atomize the liquid.
  • the atomization circuit includes an energy storage unit, a synchronous buck converter, and a DC conversion unit.
  • One end of the energy storage unit is connected to the power source together with an input end of the synchronous buck converter, and the other end of the energy storage unit is grounded.
  • the control signal input end and the enable end of the synchronous buck converter are respectively connected to the controller.
  • the feedback end of the synchronous buck converter is the feedback end of the atomization circuit.
  • An output of the synchronous buck converter is coupled to an input of the DC conversion unit.
  • the output end of the DC conversion unit is an output end of the atomization circuit.
  • the energy storage unit includes at least one storage capacitor.
  • the DC conversion unit includes a power inductor and at least one filter capacitor.
  • One end of the power inductor is coupled to an output of the synchronous buck converter.
  • the other end of the power inductor is sequentially connected to one end of each of the filter capacitors.
  • the other end of each of the filter capacitors is grounded.
  • the common end of the power inductor and each of the filter capacitors is an output end of the DC conversion unit.
  • the electronic cigarette further includes a feedback unit.
  • An input end of the feedback unit is connected to an output end of the atomization circuit, and an output end of the feedback unit is connected to a second input end of the controller.
  • the feedback unit is configured to feed back an output voltage of the atomization circuit to the controller.
  • the feedback unit includes a resistor R10, a resistor R12, and a capacitor C44.
  • One end of the resistor R10 is connected to an output end of the atomizing circuit, and the other end of the resistor R10 is respectively connected to one end of the resistor R12 and one end of the capacitor C44.
  • the other end of the resistor R12 is commonly grounded to the other end of the capacitor C44.
  • the common end of the resistor R10, the resistor R12 and the capacitor C44 is an output end of the feedback unit.
  • the electronic cigarette further includes a charging circuit.
  • An input end of the charging circuit is connected to an output end of the atomizing circuit, and an output end of the charging circuit is used to supply power to an external device.
  • the charging circuit comprises a USB charging unit.
  • the USB charging unit is used to supply power to an external device using a voltage of 5V.
  • the USB charging unit includes a diode and a USB interface.
  • the anode of the diode is connected to the output of the atomization circuit, and the cathode of the diode is connected to the USB interface.
  • the electronic cigarette provided by the embodiment of the present invention has the same structure as that of the atomization control circuit provided in the previous embodiment, and therefore will not be described herein.

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Dc-Dc Converters (AREA)
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Abstract

L'invention concerne un circuit de commande d'atomisation et une cigarette électronique, une extrémité d'entrée de puissance d'un dispositif de commande (100) et une extrémité d'entrée de puissance du circuit d'atomisation (200) étant respectivement connectées à une source d'alimentation (400). La première extrémité d'entrée du dispositif de commande (100) est connectée à une extrémité de rétroaction du circuit d'atomisation (200), et une extrémité de sortie du dispositif de commande (100) est connectée à l'extrémité d'entrée de commande du circuit d'atomisation (200). L'extrémité de sortie du circuit d'atomisation (200) est connectée à un élément chauffant (300). Le dispositif de commande (100) est utilisé pour émettre un signal de commande correspondant en fonction du signal renvoyé par l'extrémité de rétroaction du circuit d'atomisation (200). Le circuit d'atomisation (200) est utilisé pour distribuer en sortie un courant continu à l'élément chauffant (300) sous la commande du dispositif de commande (100) pour atomiser le liquide de fumée. Le dispositif de commande (100) peut commander au circuit d'atomisation (200) de distribuer en sortie un courant continu à l'élément chauffant (300) à une puissance constante pour atomiser la fumée liquide en fonction du signal de rétroaction provenant de l'extrémité de rétroaction du circuit d'atomisation (200). Par conséquent, le coût est réduit sur le principe que la puissance constante peut être distribuée en sortie à l'élément chauffant (300).
PCT/CN2017/108268 2017-03-10 2017-10-30 Circuit de commande d'atomisation et cigarette électronique WO2018161610A1 (fr)

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CN201720236652.4U CN206586398U (zh) 2017-03-10 2017-03-10 雾化控制电路及电子烟
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KR102553781B1 (ko) * 2018-02-02 2023-07-10 니뽄 다바코 산교 가부시키가이샤 흡인성분 생성 장치의 전원 유닛, 흡인성분 생성 장치의 전원 유닛에서의 기지 저항의 전기저항값의 선택 방법
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CN110200325A (zh) * 2019-06-21 2019-09-06 深圳市庚诚达科技有限公司 电子烟的工作方法、存储设备、电子烟
CN111802709A (zh) * 2020-07-14 2020-10-23 深圳麦克韦尔科技有限公司 电子雾化装置、控制方法、控制装置及计算机设备
CN113056042A (zh) * 2021-04-21 2021-06-29 北京航天控制仪器研究所 一种闭环控制光纤加热装置

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