WO2024026636A1 - Procédé de détection de fuite de liquide pour circuit de capteur de flux d'air, circuit de capteur de flux d'air, capteur de flux d'air et produit électronique - Google Patents

Procédé de détection de fuite de liquide pour circuit de capteur de flux d'air, circuit de capteur de flux d'air, capteur de flux d'air et produit électronique Download PDF

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Publication number
WO2024026636A1
WO2024026636A1 PCT/CN2022/109506 CN2022109506W WO2024026636A1 WO 2024026636 A1 WO2024026636 A1 WO 2024026636A1 CN 2022109506 W CN2022109506 W CN 2022109506W WO 2024026636 A1 WO2024026636 A1 WO 2024026636A1
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WO
WIPO (PCT)
Prior art keywords
oil leakage
leakage detection
circuit
microphone circuit
microphone
Prior art date
Application number
PCT/CN2022/109506
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English (en)
Chinese (zh)
Inventor
程晓钟
程彦绪
Original Assignee
深圳市创芯微电子有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市创芯微电子有限公司 filed Critical 深圳市创芯微电子有限公司
Priority to PCT/CN2022/109506 priority Critical patent/WO2024026636A1/fr
Priority to US18/156,137 priority patent/US20240035917A1/en
Publication of WO2024026636A1 publication Critical patent/WO2024026636A1/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
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts

Definitions

  • the present invention relates to the technical field of microphones, and more specifically, to an oil leakage detection method of a microphone circuit, a microphone circuit, a microphone and electronic products.
  • the microphone is one of the core components of electronic products such as e-cigarettes.
  • the overall working principle of an electronic cigarette using a microphone switch can be summarized as follows: the user inhales - the airflow sensor (microphone) responds - the control circuit is triggered - the atomizer starts working - steam is generated. When you stop inhaling, the airflow in the sensor disappears, the airflow sensing switch is turned off, the control module of the control circuit stops working, and the atomizer stops working.
  • microphone switches make electronic cigarettes more intelligent and easier to operate, making them more suitable for pod cigarettes with lower power.
  • the technical problem to be solved by the present invention is to provide an oil leakage detection method for a microphone circuit in view of the above-mentioned defects of the prior art. It also provides a microphone circuit, a microphone and electronic products.
  • the oil leakage detection method of the microphone circuit of the present invention includes the steps:
  • the equivalent resistance and/or equivalent voltage of the environment in which the microphone circuit is located is detected
  • Effective voltage specifically including:
  • the electrical signal fed back by the oil leakage detection pin is read to obtain the equivalent resistance and/or equivalent voltage of the environment in which the microphone circuit package is located.
  • the oil leakage detection method of the present invention wherein the step: reading the electrical signal fed back by the oil leakage detection pin, specifically includes:
  • the oil leakage detection method of the present invention wherein the step: determine whether the equivalent resistance and/or equivalent voltage exceeds the corresponding preset value, specifically includes:
  • a voltage detection comparator or current comparator is used to determine whether the equivalent resistance or equivalent voltage exceeds the corresponding preset value.
  • a microphone circuit of the present invention which includes: an oil leakage detection unit circuit; the oil leakage detection unit circuit includes:
  • the oil leakage detection pin provided on the microphone circuit package is used to detect the equivalent resistance and/or equivalent voltage of the environment in which the microphone circuit package is located;
  • a detection circuit provided in the microphone circuit package is electrically connected to the oil leakage detection pin, and is used to determine whether the equivalent resistance and/or equivalent voltage exceeds the corresponding preset value, and when the When the equivalent resistance and/or equivalent voltage exceed the preset value, the microphone circuit stops working signal.
  • an intermittent or continuous electrical signal is applied to the oil leakage detection pin.
  • the detection circuit is a voltage detection comparator or a current comparator.
  • the oil leakage detection pin is multiplexed with the charging pin of the microphone circuit.
  • a microphone of the present invention wherein the microphone is provided with a microphone circuit as described in any one of the preceding items.
  • An electronic product of the present invention wherein the electronic product is provided with a microphone as described in any one of the preceding items.
  • the beneficial effect of the present invention is that by arranging the oil leakage detection pin on the package of the microphone circuit, and at the same time arranging the detection circuit in the package of the microphone circuit, it can ensure that an oil leakage accident occurs in the environment where the microphone circuit package is located.
  • the detection circuit can work normally, so that it can not only detect changes in the equivalent resistance and/or equivalent voltage of the environment, but also ensure that the microphone circuit is controlled to stop working based on the changes in equivalent resistance and/or equivalent voltage, preventing electronic If the product is still powered on despite oil leakage, it may cause safety accidents and reduce the safety hazards of electronic products.
  • Figure 1 is a flow chart of the oil leakage detection method of the microphone circuit according to the preferred embodiment of the present invention.
  • Figure 2a is a schematic diagram of the microphone circuit according to the preferred embodiment of the present invention.
  • Figure 2b is the second schematic diagram of the microphone circuit according to the preferred embodiment of the present invention.
  • Figure 3 is a circuit diagram of an oil leakage detection voltage detection comparator solution according to another preferred embodiment of the present invention.
  • FIG. 4 is a circuit diagram of the oil leakage detection voltage detection comparator scheme 2 of another preferred embodiment of the present invention.
  • Figure 5 is a circuit diagram of a voltage detection ADC solution in an oil leakage detection circuit according to another preferred embodiment of the present invention.
  • Figure 6 is a circuit diagram of the second scheme of the voltage detection ADC in the oil leakage detection circuit of another preferred embodiment of the present invention.
  • Figure 7 is a circuit diagram of a current detection ADC scheme in an oil leakage detection circuit according to another preferred embodiment of the present invention.
  • Figure 8 is a circuit diagram of the second scheme of the current detection ADC in the oil leakage detection circuit of another preferred embodiment of the present invention.
  • Figure 9 is a circuit diagram of the ADC scheme when there is oil leakage in both VDD and CHG in the oil leakage detection circuit in the preferred embodiment of the present invention.
  • Figure 10 is a circuit diagram of the comparator scheme when there is oil leakage in both VDD and CHG in the oil leakage detection circuit in the preferred embodiment of the present invention.
  • an oil leakage detection method for a microphone circuit is provided, as shown in Figure 1, including the steps:
  • Step S10 Detect the equivalent resistance and/or equivalent voltage of the environment where the microphone circuit is located through the oil leakage detection pin provided on the microphone circuit package;
  • Step S20 Determine whether the equivalent resistance and/or equivalent voltage exceeds the corresponding preset value through the detection circuit provided in the microphone circuit package;
  • Step S30 When the equivalent resistance and/or equivalent voltage exceed the preset value, output a signal that the microphone circuit stops working.
  • the oil leakage detection pin When there is no oil leakage outside the microphone circuit package, the oil leakage detection pin is equivalent to grounding, and the voltage is 0V; when oil leakage occurs outside the microphone circuit package, the oil leakage detection pin is equivalent to an external "load” ”, the equivalent resistance value of the “load” varies depending on the specific oil droplet leakage, the voltage value on the oil leakage detection pin will change, and the voltage comparator will output this change through the output terminal to The suction detection unit circuit or other circuits of the microphone circuit control the microphone circuit to stop working, thereby avoiding various dangerous accidents caused by oil leakage.
  • the present invention can ensure that when an oil leakage accident occurs in the environment where the microphone circuit package is located, the detection circuit can Normal operation, so that it can not only detect changes in the equivalent resistance and/or equivalent voltage of the environment, but also ensure that the microphone circuit is controlled to stop working based on the changes in equivalent resistance and/or equivalent voltage to prevent electronic products from oil leakage. It may cause safety accidents if the power is still on, reducing the safety hazards of electronic products.
  • the steps in the oil leakage detection method are: detecting the equivalent resistance and/or equivalent voltage of the environment where the microphone circuit is located through the oil leakage detection pin provided on the microphone circuit package, Specifically include:
  • the electrical signal fed back by the oil leakage detection pin is read to obtain the equivalent resistance and/or equivalent voltage of the environment where the microphone circuit package is located.
  • the step in the oil leakage detection method: reading the electrical signal fed back by the oil leakage detection pin specifically includes:
  • the step in the oil leakage detection method determining whether the equivalent resistance and/or equivalent voltage exceeds the corresponding preset value specifically includes:
  • a voltage detection comparator or current comparator is used to determine whether the equivalent resistance or equivalent voltage exceeds the corresponding preset value.
  • the preset value can be set to the possible equivalent resistance value range of the oil drop: 1K ⁇ 1M ⁇ , 1K ⁇ 200K ⁇ , 50K ⁇ 200K ⁇ ..., or the preset value can be set to be calculated based on the equivalent resistance value range. range of equivalent voltage values.
  • the default value may vary due to different microphone circuit solutions and the environment, but it should be considered to be within the protection scope of the present invention.
  • a microphone circuit which includes: an oil leakage detection unit circuit, using the aforementioned oil leakage detection method.
  • the oil leakage detection unit circuit includes:
  • the oil leakage detection pin provided on the microphone circuit package is used to detect the equivalent resistance and/or equivalent voltage of the environment where the microphone circuit package is located;
  • a detection circuit provided in the microphone circuit package is electrically connected to the oil leakage detection pin, and is used to determine whether the equivalent resistance and/or equivalent voltage exceeds the corresponding preset value, and determines whether the equivalent resistance and/or equivalent voltage exceeds the corresponding preset value. When the equivalent voltage exceeds the preset value, the microphone circuit stops working signal.
  • the microphone circuit of the present invention can ensure that oil leakage accidents occur in the environment where the microphone circuit package is located by arranging the oil leakage detection pin on the package of the microphone circuit and at the same time arranging the detection circuit in the package of the microphone circuit.
  • the detection circuit can work normally, so that it can not only detect changes in the equivalent resistance and/or equivalent voltage of the environment, but also ensure that the microphone circuit is controlled to stop working based on the changes in equivalent resistance and/or equivalent voltage, preventing electronic The product is still powered on despite oil leakage, causing safety accidents and reducing the safety hazards of electronic products.
  • an intermittent or continuous electrical signal such as a pulse signal, is applied to the oil leakage detection pin.
  • the oil leakage detection pin is multiplexed with the charging pin of the microphone circuit.
  • the internal detection circuit can be directly added to the original six-pin package of the microphone circuit to achieve the purpose of oil leakage detection. It can avoid the adverse consequences of increasing the microphone circuit package size and cost due to the increase in pins.
  • the detection circuit in the microphone circuit is a voltage detection comparator or a current comparator, or other circuits with the same function, as shown in Figure 3-10.
  • the detection circuit in the microphone circuit is a voltage detection comparator circuit, which includes: the input oil leakage detection pin OLD and the output terminal OUTPU.
  • the oil leakage detection pin OLD is set on the package of the microphone circuit and is multiplexed with the charging pin CHG of the microphone circuit. It can detect whether there is oil leakage outside the package of the microphone circuit; the voltage comparator and its output end are set on the microphone circuit. Inside the package of the head circuit to ensure that it can work normally even in an oil leakage state.
  • the voltage value on the oil leakage detection pin OLD will change, and the voltage comparator will pass this change through
  • the output terminal OUTPUT is output to the suction detection unit circuit or other circuits of the microphone circuit to control the microphone circuit to stop working, thereby avoiding various dangerous accidents caused by oil leakage.
  • the detection method of this embodiment is The effects that oil leakage detection methods and circuits can bring are very significant.
  • the oil leakage detection pin OLD in this embodiment is multiplexed with the charging pin CHG of the microphone circuit, there is no need to add additional pins.
  • the microphone circuit can continue to use the six-pin package structure, avoiding the need for packaging due to package size. The cost of the microphone circuit increases due to the increase, so the oil leakage detection method and circuit of this embodiment have great practicability.
  • the detection circuit in the microphone circuit is a voltage detection ADC circuit, which includes: the input terminal oil leakage detection pin OLD and the output terminal OUTPUT.
  • the oil leakage detection pin OLD is set on the package of the microphone circuit and is multiplexed with the charging pin CHG of the microphone circuit. It can detect whether there is oil leakage outside the package of the microphone circuit; the voltage detection ADC circuit and its output end are set on The inside of the microphone circuit is packaged to ensure that it can work normally even in the event of oil leakage.
  • the detection method of this embodiment is more reliable, greatly improving the safety of the microphone circuit, thereby further improving the electronics using the microphone circuit. Product safety. Therefore, the effect brought by the oil leakage detection method and circuit of this embodiment is very significant.
  • the oil leakage detection pin OLD in this embodiment is multiplexed with the charging pin CHG of the microphone circuit, there is no need to add additional pins.
  • the microphone circuit can continue to use the six-pin package structure, avoiding the need for packaging due to package size. The cost of the microphone circuit increases due to the increase, so the oil leakage detection method and circuit of this embodiment have great practicability.
  • the detection circuit in the microphone circuit is a current detection ADC circuit, which includes: the first input terminal oil leakage detection pin OLD, the second input terminal connected to the power supply VDD, The output terminal OUTPUT and the fixed resistor R1 set between the two input terminals.
  • the oil leakage detection pin OLD is set on the package of the microphone circuit and is multiplexed with the charging pin CHG of the microphone circuit. It can detect whether there is oil leakage outside the package of the microphone circuit; the current detection ADC circuit and its output end are set on The inside of the microphone circuit is packaged to ensure that it can work normally even in the event of oil leakage.
  • the oil leakage detection pin OLD When the microphone circuit is working normally, an electrical signal is applied to the oil leakage detection pin OLD, and the current value of this pin is read at the same time. After processing by the current detection ADC circuit, the result is output.
  • the oil leakage detection pin OLD When there is no oil leakage outside the microphone circuit package, the oil leakage detection pin OLD is equivalent to grounding, and the current is 0; when oil leakage occurs outside the microphone circuit package, the oil leakage detection pin OLD is equivalent to an external connection. "Load”, the size of the equivalent resistance value RX of the "load” is different due to the specific leakage of oil droplets.
  • the current value on the oil leakage detection pin OLD will change, and the current detection ADC circuit will change this change.
  • the output terminal OUTPUT is output to the suction detection unit circuit or other circuits of the microphone circuit to control the microphone circuit to stop working, thereby avoiding various dangerous accidents caused by oil leakage.
  • the detection method of this embodiment is more reliable, greatly improving the safety of the microphone circuit, thereby further improving the electronics using the microphone circuit. Product safety. Therefore, the effect brought by the oil leakage detection method and circuit of this embodiment is very significant.
  • the oil leakage detection pin OLD in this embodiment is multiplexed with the charging pin CHG of the microphone circuit, there is no need to add additional pins.
  • the microphone circuit can continue to use the six-pin package structure, avoiding the need for packaging due to package size. The cost of the microphone circuit increases due to the increase, so the oil leakage detection method and circuit of this embodiment have great practicability.
  • the detection circuit in the microphone circuit is a current comparator circuit, which includes: the first input terminal oil leakage detection pin OLD, and the second input terminal connected to the microphone circuit power supply VDD , the output terminal OUTPUT, and the fixed resistor R1 set between the two input terminals.
  • the oil leakage detection pin OLD is set on the package of the microphone circuit and is multiplexed with the charging pin CHG of the microphone circuit. It can detect whether there is oil leakage outside the package of the microphone circuit; the current comparator circuit and its output end are set on The inside of the microphone circuit is packaged to ensure that it can work normally even in the event of oil leakage.
  • the detection method of this embodiment is more reliable, greatly improving the safety of the microphone circuit, thereby further improving the electronics using the microphone circuit. Product safety. Therefore, the effect brought by the oil leakage detection method and circuit of this embodiment is very significant.
  • the oil leakage detection pin OLD in this embodiment is multiplexed with the charging pin CHG of the microphone circuit, there is no need to add additional pins.
  • the microphone circuit can continue to use the six-pin package structure, avoiding the need for packaging due to package size. The cost of the microphone circuit increases due to the increase, so the oil leakage detection method and circuit of this embodiment have great practicability.
  • the detection circuit in the microphone circuit is a current detection ADC circuit, which includes: the first input terminal oil leakage detection pin OLD, the second input terminal connected to the power supply VDD, Output terminal OUTPUT.
  • the oil leakage detection pin OLD is set on the package of the microphone circuit and is multiplexed with the charging pin CHG of the microphone circuit. It can detect whether there is oil leakage outside the package of the microphone circuit; the current detection ADC circuit and its output end are set on The inside of the microphone circuit is packaged to ensure that it can work normally even in the event of oil leakage.
  • the oil leakage detection pin OLD When there is no oil leakage outside the microphone circuit package, the oil leakage detection pin OLD is equal to ground and the current is 0. When oil leakage occurs outside the microphone circuit package, and when there is oil leakage in both VDD and CHG of the microphone circuit, the oil leakage detection pin OLD at the first input terminal is equivalent to an external "load", and the second input terminal The terminal power supply VDD pin is also equivalent to an external "load”.
  • the equivalent resistance values RX1 and RX2 of these two "loads” vary depending on the specific oil droplets leaking, and the current values on the two input terminals will change, the current detection ADC circuit outputs this change to the suction detection unit circuit or other circuits of the microphone circuit through the output terminal OUTPUT, and controls the microphone circuit to stop working, thereby avoiding various dangerous accidents caused by oil leakage.
  • the detection method of this embodiment is more reliable, greatly improving the safety of the microphone circuit, thereby further improving the electronics using the microphone circuit. Product safety. Therefore, the effect brought by the oil leakage detection method and circuit of this embodiment is very significant.
  • the oil leakage detection pin OLD in this embodiment is multiplexed with the charging pin CHG of the microphone circuit, there is no need to add additional pins.
  • the microphone circuit can continue to use the six-pin package structure, avoiding the need for packaging due to package size. The cost of the microphone circuit increases due to the increase, so the oil leakage detection method and circuit of this embodiment have great practicability.
  • the detection circuit in the microphone circuit is a voltage comparator, which includes: the first input terminal oil leakage detection pin OLD, the second input terminal connected to the power supply VDD, and the output terminal OUTPUT.
  • the oil leakage detection pin OLD is set on the package of the microphone circuit and is multiplexed with the charging pin CHG of the microphone circuit. It can detect whether there is oil leakage outside the package of the microphone circuit; the voltage comparator and its output end are set on the microphone circuit. Inside the package of the head circuit to ensure that it can work normally even in an oil leakage state.
  • the oil leakage detection pin OLD When there is no oil leakage outside the microphone circuit package, the oil leakage detection pin OLD is equal to ground and the voltage is 0. When oil leakage occurs outside the microphone circuit package, and when there is oil leakage in both VDD and CHG of the microphone circuit, the oil leakage detection pin OLD at the first input terminal is equivalent to an external "load", and the second input terminal The VDD pin of the terminal power supply is also equivalent to an external "load”.
  • the equivalent resistance values RX1 and RX2 of these two "loads” vary depending on the specific oil droplets leaking, and the voltage values on the two input terminals will change, the voltage comparator outputs this change to the suction detection unit circuit or other circuits of the microphone circuit through the output terminal OUTPUT, and controls the microphone circuit to stop working, thereby avoiding various dangerous accidents caused by oil leakage.
  • the detection method of this embodiment is more reliable, greatly improving the safety of the microphone circuit, thereby further improving the electronics using the microphone circuit. Product safety. Therefore, the effect brought by the oil leakage detection method and circuit of this embodiment is very significant.
  • the oil leakage detection pin OLD in this embodiment is multiplexed with the charging pin CHG of the microphone circuit, there is no need to add additional pins.
  • the microphone circuit can continue to use the six-pin package structure, avoiding the need for packaging due to package size. The cost of the microphone circuit increases due to the increase, so the oil leakage detection method and circuit of this embodiment have great practicability.
  • a microphone is provided, the microphone is provided with the microphone circuit as described in any of the previous embodiments, or a microphone circuit product including the above-mentioned microphone circuit.
  • an electronic product is provided, wherein the electronic product is provided with a microphone as described in any of the preceding embodiments.
  • the electronic product is not limited to electronic cigarettes, but can also be other electronic products using microphones.
  • the present invention can ensure that oil leakage accidents occur in the environment where the microphone circuit package is located by arranging the oil leakage detection pin on the package of the microphone circuit and at the same time arranging the detection circuit in the package of the microphone circuit.
  • the detection circuit can work normally, so that it can not only detect changes in the equivalent resistance and/or equivalent voltage of the environment, but also ensure that the microphone circuit is controlled to stop working based on the changes in equivalent resistance and/or equivalent voltage, preventing electronic If the product is still powered on despite oil leakage, it may cause safety accidents and reduce the safety hazards of electronic products.
  • the detection method of the present invention is more reliable, greatly improving the safety of the microphone circuit, thereby further improving the safety of electronic products using the microphone circuit.
  • the oil leakage detection pin OLD in the present invention can be reused with the charging pin CHG of the microphone circuit, there is no need to add additional pins, so that the microphone circuit can continue to use the six-pin packaging structure, avoiding the need for packaging due to The cost of the microphone circuit increases due to the increase in size. Therefore, the oil leakage detection method and circuit of the present invention have great practicability and are easy to be popularized and used.

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Abstract

La présente invention concerne un procédé de détection de fuite de liquide pour un circuit de capteur de flux d'air, un circuit de capteur de flux d'air, un capteur de flux d'air et un produit électronique. Le procédé de détection de fuite de liquide pour un circuit de capteur de flux d'air comprend les étapes consistant à : au moyen d'une broche de détection de fuite de liquide disposée sur un boîtier de circuit de capteur de flux d'air, mesurer la résistance équivalente et/ou la tension équivalente d'un environnement où se trouve un circuit de capteur de flux d'air ; au moyen d'un circuit de mesure disposé dans le boîtier de circuit de capteur de flux d'air, déterminer si la résistance équivalente et/ou la tension équivalente dépasse une valeur prédéfinie correspondante ; et si la résistance équivalente et/ou la tension équivalente dépasse la valeur prédéfinie, délivrer en sortie un signal de désactivation de circuit de capteur de flux d'air. Au moyen de la présente invention, le circuit de mesure peut être assuré de fonctionner normalement lorsqu'un accident de fuite de liquide se produit dans l'environnement où le boîtier de circuit de capteur de flux d'air est situé, de telle sorte qu'un changement de la résistance équivalente et/ou de la tension équivalente de l'environnement peut être détecté, et il peut être garanti que le circuit de capteur de flux d'air est commandé pour arrêter de fonctionner selon le changement de la résistance équivalente et/ou de la tension équivalente, ce qui permet d'empêcher des accidents de sécurité provoqués par le fait que des produits électroniques sont encore électrifiés pendant une fuite de liquide, et de réduire les risques de sécurité potentiels de produits électroniques.
PCT/CN2022/109506 2022-08-01 2022-08-01 Procédé de détection de fuite de liquide pour circuit de capteur de flux d'air, circuit de capteur de flux d'air, capteur de flux d'air et produit électronique WO2024026636A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2022/109506 WO2024026636A1 (fr) 2022-08-01 2022-08-01 Procédé de détection de fuite de liquide pour circuit de capteur de flux d'air, circuit de capteur de flux d'air, capteur de flux d'air et produit électronique
US18/156,137 US20240035917A1 (en) 2022-08-01 2023-01-18 Oil leakage detection method of mircrophone circuit, mircrophone circuit, mircrophone and electronic product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/109506 WO2024026636A1 (fr) 2022-08-01 2022-08-01 Procédé de détection de fuite de liquide pour circuit de capteur de flux d'air, circuit de capteur de flux d'air, capteur de flux d'air et produit électronique

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/156,137 Continuation US20240035917A1 (en) 2022-08-01 2023-01-18 Oil leakage detection method of mircrophone circuit, mircrophone circuit, mircrophone and electronic product

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WO2024026636A1 true WO2024026636A1 (fr) 2024-02-08

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111067154A (zh) * 2020-01-20 2020-04-28 深圳市驰泰电子科技有限公司 防漏油电子烟发热丝驱动控制电路、方法、芯片及电子烟
US20200375258A1 (en) * 2019-05-31 2020-12-03 Japan Tobacco Inc. Control device for aerosol inhalation device and aerosol inhalation device
CN213486883U (zh) * 2020-07-31 2021-06-22 无锡市晶源微电子有限公司 一种电子烟漏油防护装置
CN213961797U (zh) * 2020-10-23 2021-08-17 胥海洲 一种基于电阻应变的电子烟咪头
CN114504130A (zh) * 2021-12-31 2022-05-17 陕西亚成微电子股份有限公司 一种电子雾化器控制系统及方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200375258A1 (en) * 2019-05-31 2020-12-03 Japan Tobacco Inc. Control device for aerosol inhalation device and aerosol inhalation device
CN111067154A (zh) * 2020-01-20 2020-04-28 深圳市驰泰电子科技有限公司 防漏油电子烟发热丝驱动控制电路、方法、芯片及电子烟
CN213486883U (zh) * 2020-07-31 2021-06-22 无锡市晶源微电子有限公司 一种电子烟漏油防护装置
CN213961797U (zh) * 2020-10-23 2021-08-17 胥海洲 一种基于电阻应变的电子烟咪头
CN114504130A (zh) * 2021-12-31 2022-05-17 陕西亚成微电子股份有限公司 一种电子雾化器控制系统及方法

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