CN105901776B - The detection method of detection circuit in electronic atomization device - Google Patents
The detection method of detection circuit in electronic atomization device Download PDFInfo
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- CN105901776B CN105901776B CN201610437476.0A CN201610437476A CN105901776B CN 105901776 B CN105901776 B CN 105901776B CN 201610437476 A CN201610437476 A CN 201610437476A CN 105901776 B CN105901776 B CN 105901776B
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Abstract
The present invention relates to the detection methods of the detection circuit in electronic atomization device, including MCU suspend mode, are closed power amplifier tube by the VGS pins of MCU, the second supplying resistance；ON pins are set to high level by MCU, and current supply circuit is formed by the first supplying resistance, diode, sampling resistor and atomizer；Atomizer is replaced in MCU sleep procedures, the DE of MCU detects foot level by low transition into high level, after the DE detection feet of MCU detect low transition at the variation of high level, MC sends the signal arrival display alarm information on display module for having replaced atomizer.In the present invention, when atomizer is not replaced, the ON feet of MCU are formed into a loop with atomizer, when atomizer is replaced, it can not be formed into a loop between the ON feet and atomizer of MCU, what DE detection feet detected is low transition into high level, display module display alarm information, user resets atomizer initial value, and it is excessively high and damage to prevent temperature.
Description
Technical field
The present invention relates to detection circuits, more specifically refer to the detection method of the detection circuit in electronic atomization device.
Background technology
Electronic atomizer is exactly so-called electronic cigarette, the preceding title of healthy electronic cigarette.Appear in China earliest within 2005.It is situated between
Novel product between electronic component and food.He and the maximum difference of conventional cigarette are exactly without burning, without coke
The noxious materials such as oil, carbon monoxide, nitrous acid.There will not be simultaneously influences very big secondhand smoke to surrounding population.
As shown in Figure 1, electronic cigarette can detect whether atomizer is replaced under Micro-processor MCV working condition at present,
It cannot then be detected under dormant state, the atomizer of electronic cigarette is to connect input voltage by sampling resistor R9, and MCU is in the operating condition
Judge whether atomizer is replaced by the curent change of R9, after MCU suspend mode, the curent change of R9 is not detected then.
Client can not be reminded in time from the atomizer of different resistance values before, electronic cigarette when having been replaced under MCU dormant states
, there are following problems in the initial value for resetting atomizer when user being caused to reuse：Original big of the atomizer resistance value ratio of replacement,
Temperature value set by user is not achieved；Original small of the atomizer resistance value ratio of replacement：More than temperature set by user, make atomizer
Damage.
Invention content
It is an object of the invention to overcome the deficiencies of existing technologies, the detection circuit in electronic atomization device and its side are provided
Method.
To achieve the above object, the present invention uses following technical scheme：
The detection method of detection circuit in electronic atomization device, is as follows：
Step 1: MCU suspend mode, is closed power amplifier tube by the VGS pins of MCU, the second supplying resistance；MCU is by ON
Pin is set to high level, and current supply circuit is formed by the first supplying resistance, diode, sampling resistor and atomizer；
Step 2: replacing atomizer in MCU sleep procedures, the first supplying resistance, diode, sampling resistor lack at this time
Earth-return circuit, for the DE detection foot level of MCU by low transition at high level, the DE detection feet of MCU detect low transition
After the variation of high level, MCU then sends the signal arrival display alarm information on display module for having replaced atomizer；
Wherein, the detection method has used the detection circuit in electronic atomization device, the detection circuit include MCU,
Atomizer, operational amplifier, display module and power amplifier tube；The MCU is equipped with to be become for detecting level on atomizer
DE detections foot, the VGS pins for controlling the power amplifier tube conducting and the ON pins for exporting supply current of change,
The VGS pins of the MCU are connect with the control foot of the power amplifier tube, and the output pin of the power amplifier tube passes through a sampling
Resistance is connect with the anode of the atomizer, and the ON pins and DE of the MCU detect the foot anode with the atomizer respectively
Connection, the cathode connection the earth of the atomizer, the display module are connect with the output end of the MCU, the operation amplifier
The input terminal and output end of device are connect with the both ends of the sampling resistor respectively；The ON pins of the MCU pass through one first power supply
Resistance is connect with the anode of a diode, and the cathode of the diode is connect with the voltage input end of the sampling resistor；It is described
The DE detection feet of MCU are connect with the anode of the diode；The VGS pins of the MCU pass through the second supplying resistance and the work(
The control foot of rate amplifier tube connects.
Its further technical solution is：The input pin of the power amplifier tube is connected with power supply, and the power amplifier tube
Input pin and ground connection between be connected with filter capacitor.
Its further technical solution is：The power amplifier tube is metal-oxide-semiconductor, and the input pin is the poles S, and the control foot is
The poles G, the output pin are the poles D.
Compared with the prior art, the invention has the advantages that：The inspection of detection circuit in the electronic atomization device of the present invention
Survey method utilizes the ON of MCU by interfering with each other for power amplifier tube isolation high-power output circuit and small signal deteching circuit
Pin and DE detection feet are connect with atomizer respectively, and when atomizer is not replaced, ON pins and the atomizer of MCU are formed back
Road, what DE detection feet detected is low level, when atomizer is replaced, can not be formed back between the ON pins and atomizer of MCU
Road, also, amplifier amplifier detect sampling resistor both ends pressure difference variation, while DE detection foot detect be low level jump
Becoming high level, MCU receives the signal intensity of DE detection feet, sends and reaches display module to induction signal, with display alarm information,
User can reset atomizer initial value according to the display information of display module in time, can timely feedback electronic smoke atomizer and exist
Whether replaced after MCU suspend mode, it is excessively high and damage to prevent temperature, keeps electronics smoke product safer, healthy, and display module
It can be shown according to consumer demand, individual demand of the consumer to product can be better met.
The invention will be further described in the following with reference to the drawings and specific embodiments.
Description of the drawings
Fig. 1 is the structural schematic diagram of the atomizer circuit of the electronic cigarette of the prior art；
Fig. 2 is the structural schematic diagram of the detection circuit in the electronic atomization device that the specific embodiment of the invention provides；
Reference numeral
C1, C2, C3 filter capacitor D8 diodes
Q7 power amplifier tubes the first supplying resistances of R37
R45 the second supplying resistance R9 sampling resistors
OLED display modules
Specific implementation mode
In order to more fully understand the present invention technology contents, with reference to specific embodiment to technical scheme of the present invention into
One step introduction and explanation, but not limited to this.
The specific embodiment as shown in Fig. 1~2, the detection circuit in electronic atomization device provided in this embodiment can be with
It is used in electronic cigarette, for identification the energization between atomizer and power supply or power-off relationship, realizes that moment detection atomizer is
It is no to be replaced, to remind user to change atomizer initial value in time；Of course, it is possible to be used in other electronic products.
Detection circuit in electronic atomization device, including MCU, atomizer, operational amplifier, display module OLED and work(
Rate amplifier tube Q7；MCU is equipped with the DE for detecting level change on atomizer and detects foot, for controlling power amplifier tube conducting
VGS pins and ON pins for exporting supply current, the VGS pins of MCU connect with the control foot of power amplifier tube Q7,
The output pin of power amplifier tube Q7 is connected by the anode of a sampling resistor R9 and atomizer, in addition, the ON pins and DE of MCU
Detection foot is connect with the anode of atomizer respectively, and the cathode connection the earth of atomizer, the output end of display module OLED and MCU connects
It connects, the input terminal and output end of operational amplifier are connect with the both ends of sampling resistor R9 respectively.
MCU closes power amplifier tube Q7 in suspend mode, by VGS pins, this circuit is divided into front and back two parts, with every
From interference.ON pins are set to high level by MCU at this time, and ON pins form current supply circuit with atomizer, because of the resistance value of atomizer
Very little (0.1 Ω -5 Ω), what the DE detection feet on MCU detected is low level.If user replaces mist in MCU sleep procedures
Change device, lack earth-return circuit between ON pins and atomizer at this time, the level that the DE detection feet of MCU detect is by low transition
At high level, after the DE of MCU detection foot detects low transition at the variation of high level, MCU then sends and has replaced atomizer
Signal reach on display module OLED display alarm information.
Detection circuit in above-mentioned electronic atomization device, by power amplifier tube Q7 isolation high-powers output circuit with it is small
Signal deteching circuit interferes with each other, and is connect respectively with atomizer using ON feet and DE the detection foot of MCU, when atomizer not more
When changing, ON feet and the atomizer of MCU are formed into a loop, and what DE detection feet detected is low level, when atomizer is replaced, MCU's
It can not be formed into a loop between ON feet and atomizer, also, amplifier amplifier detects the pressure difference variation at the both ends sampling resistor R9, together
When DE detection feet detect is low transition into high level, MCU receives the signal intensity of DE detection feet, sends to induction signal
Display module OLED is reached, with display alarm information, user can reset atomizer according to the display information of display module in time
Initial value, can timely feedback whether electronic smoke atomizer is replaced after MCU suspend mode, and it is excessively high and damage to prevent temperature, makes electricity
Sub- smoke product is safer, healthy, and display module can be shown according to consumer demand, can better meet consumer
To the individual demand of product.
Further, the ON pins of MCU are connect by one first supplying resistance R37 with the anode of a diode D8, and two
The cathode of pole pipe D8 is connect with the voltage input end of sampling resistor R9, when atomizer is not replaced, the ON feet of MCU, the first power supply
Resistance R37 and atomizer forming circuit, when replacing atomizer, the ON feet of MCU and the first supplying resistance R37 lack ground connection
Circuit, the DE of MCU detects foot level by low transition into high level.
In addition, the DE detection feet of MCU are connect with the anode of diode D8, for MCU in suspend mode, ON feet are set to high electricity by MCU
It is flat, current supply circuit is formed by the first supplying resistance R37, diode D8, sampling resistor R9 and atomizer.Because of the resistance of atomizer
It is worth very little (0.1-5 Ω), what the DE detection feet on MCU detected is low level.If user replaces atomization in sleep procedure
Device, at this time the first supplying resistance R37, diode D8, sampling resistor R9 lack earth-return circuit, MCUDE detects foot level by low electricity
Flat saltus step sends a signal to display module at high level, MCU, the display alarm information on display module OLED.In the process,
Diode D8 isolation atomizer voltages generate interference to MCU.
Further, the VGS pins of MCU are connect by the second supplying resistance R45 with the control foot of power amplifier tube Q7,
In this way, the second supplying resistance R45 can divide to walk a part of voltage, MCU passes through VGS pins and the second power supply electricity in suspend mode
Resistance R45 closes power amplifier tube Q7, this circuit is divided into front and back two parts, interference is isolated.
The input pin of power amplifier tube Q7 is connected with power supply, and is connected between the input pin and ground connection of power amplifier tube Q7
There are power input filter capacitor C1, C2, C3.
In the present embodiment, power amplifier tube Q7 is metal-oxide-semiconductor, and the input pin is the poles S, and the control foot is the poles G, described
Output pin is the poles D.
Certainly, in other embodiment, above-mentioned power amplifier tube Q7 can be triode etc., it is not limited to the present embodiment
The metal-oxide-semiconductor of offer.
Atomizer replaces the detection method of state for identification, is as follows：
Step 1: MCU suspend mode, is closed power amplifier tube Q7 by the VGS pins of MCU, the second supplying resistance R45；MCU
ON pins are set to high level, are powered back by the formation of the first supplying resistance R37, diode D8, sampling resistor R9 and atomizer
Road, because of the resistance value very little (0.1-5 Ω) of atomizer, what the DE detection feet on MCU detected is low level；
Step 2: replacing atomizer in MCU sleep procedures, the first supplying resistance R37, diode D8, sampling are electric at this time
Resistance R9 lacks earth-return circuit, and by low transition at high level, the DE detection feet of MCU detect low for the DE detection foot level of MCU
After level saltus step is at the variation of high level, MCU then send replaced atomizer signal arrival shown on display module OLED
Prompting message.
Detection method in above-mentioned electronic atomization device for identification close by the energization between atomizer and power supply or power-off
System.
It is above-mentioned only with embodiment come the technology contents that further illustrate the present invention, in order to which reader is easier to understand, but not
It represents embodiments of the present invention and is only limitted to this, any technology done according to the present invention extends or recreation, by the present invention's
Protection.Protection scope of the present invention is subject to claims.
Claims (3)
1. the detection method of the detection circuit in electronic atomization device, which is characterized in that be as follows：
Step 1: MCU suspend mode, is closed power amplifier tube by the VGS pins of MCU, the second supplying resistance；MCU is by ON pins
It is set to high level, current supply circuit is formed by the first supplying resistance, diode, sampling resistor and atomizer；
Step 2: replacing atomizer in MCU sleep procedures, the first supplying resistance, diode, sampling resistor lack ground connection at this time
Circuit, for the DE detection foot level of MCU by low transition at high level, the DE detection feet of MCU detect low transition at height
After the variation of level, MCU then sends the signal arrival display alarm information on display module for having replaced atomizer；
Wherein, it includes MCU, atomization that the detection method, which has used the detection circuit in electronic atomization device, the detection circuit,
Device, operational amplifier, display module and power amplifier tube；The MCU is equipped with for detecting level change on atomizer
DE detections foot, the VGS pins for controlling the power amplifier tube conducting and the ON pins for exporting supply current, it is described
The VGS pins of MCU are connect with the control foot of the power amplifier tube, and the output pin of the power amplifier tube passes through a sampling resistor
It being connect with the anode of the atomizer, ON pins and DE the detection foot of the MCU is connect with the anode of the atomizer respectively,
The cathode connection the earth of the atomizer, the display module connect with the output end of the MCU, the operational amplifier it is defeated
Enter end and output end to connect with the both ends of the sampling resistor respectively；The ON pins of the MCU by one first supplying resistance with
The anode connection of one diode, the cathode of the diode are connect with the voltage input end of the sampling resistor；The DE of the MCU
Detection foot is connect with the anode of the diode；The VGS pins of the MCU pass through the second supplying resistance and the power amplifier tube
Control foot connection.
2. the detection method of the detection circuit in electronic atomization device according to claim 1, which is characterized in that the work(
The input pin of rate amplifier tube is connected with power supply, and is connected with filter capacitor between the input pin and ground connection of the power amplifier tube.
3. the detection method of the detection circuit in electronic atomization device according to claim 2, which is characterized in that the work(
Rate amplifier tube is metal-oxide-semiconductor, and the input pin is the poles S, and the control foot is the poles G, and the output pin is the poles D.
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| CN201610437476.0A CN105901776B (en) | 2016-06-17 | 2016-06-17 | The detection method of detection circuit in electronic atomization device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610437476.0A CN105901776B (en) | 2016-06-17 | 2016-06-17 | The detection method of detection circuit in electronic atomization device |
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| CN110179166A (en) * | 2019-06-19 | 2019-08-30 | 精赟智能科技（上海）有限公司 | Electronic atomized circuit and electronic cigarette |
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| CN102160906B (en) * | 2010-11-01 | 2012-08-08 | 常州市富艾发进出口有限公司 | Oral-suction type portable atomizer |
| US9696353B2 (en) * | 2013-07-29 | 2017-07-04 | Atmel Corporation | Measuring power consumption of circuit component operating in run mode |
| CN104970442B (en) * | 2014-04-03 | 2018-06-15 | 惠州市吉瑞科技有限公司 | A kind of information interacting method and information interaction system |
| CN204232304U (en) * | 2014-11-14 | 2015-04-01 | 惠州市吉瑞科技有限公司 | Electronic cigarette |
| CN105686085B (en) * | 2014-11-24 | 2019-06-28 | 惠州市吉瑞科技有限公司 | Atomizer assembly, the electronic cigarette for limiting the service life and the method for limiting the electronic cigarette service life |
| CN205017611U (en) * | 2015-06-15 | 2016-02-03 | 深圳葆威道科技有限公司 | Temperature control system of electron cigarette heat -generating body |
| CN105212280A (en) * | 2015-11-04 | 2016-01-06 | 卓尔悦（常州）电子科技有限公司 | Cell apparatus, electronic cigarette and control method thereof |
| CN205947120U (en) * | 2016-06-17 | 2017-02-15 | 深圳瀚星翔科技有限公司 | Detection circuitry among electron atomizing device |
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