CN105126212B - A kind of adjustable atomization circuit and control method - Google Patents
A kind of adjustable atomization circuit and control method Download PDFInfo
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- 238000000889 atomisation Methods 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title abstract description 11
- 239000003990 capacitor Substances 0.000 claims description 24
- 238000002604 ultrasonography Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 210000004072 lung Anatomy 0.000 abstract description 2
- 238000002560 therapeutic procedure Methods 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 description 20
- 239000003814 drug Substances 0.000 description 13
- 229940079593 drug Drugs 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 239000003595 mist Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 206010014561 Emphysema Diseases 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000001684 chronic effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000002345 respiratory system Anatomy 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 208000009079 Bronchial Spasm Diseases 0.000 description 1
- 206010006482 Bronchospasm Diseases 0.000 description 1
- 206010061876 Obstruction Diseases 0.000 description 1
- 206010034133 Pathogen resistance Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 238000002664 inhalation therapy Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007721 medicinal effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000000414 obstructive effect Effects 0.000 description 1
- 229940126701 oral medication Drugs 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000010181 polygamy Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
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- 239000007921 spray Substances 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
- 210000003135 vibrissae Anatomy 0.000 description 1
Abstract
The invention discloses a kind of adjustable atomization circuit and control methods, its circuit includes micro controller unit, adjustable boosting unit and ultrasonic atomizatio unit, the micro controller unit is connected respectively to adjustable boosting unit and ultrasonic atomizatio unit, and the adjustable boosting unit is connect with the ultrasonic atomizatio unit.The working condition of micro-control unit controls are adjustable boosting unit and ultrasonic atomizatio unit adjusts ultrasonic vibration frequency and amplitude, to realize the adjustment to atomization rates.The present invention can adjust best atomization rates according to different pharmaceutical characteristic, make droplet more fine uniform, be more advantageous to human lung's absorption, can also age according to patient and physical condition, adjust suitable atomization rates, improve the comfort level of nebulae inhalation.This programme is suitable for medicinal atomized therapy field.
Description
Technical field
The present invention relates to field of medical device, more particularly, to a kind of adjustable atomization circuit and control method.
Background technique
Atomization inspiration treatment can make drug directly act on diseased region, compared with oral medication, with dosage is small, sees
Effect is fast, few side effects, it is easy to use, significant in efficacy the advantages that；And respiratory tract local drug concentration is high, can avoid or reduces and is complete
Body uses hormone.Therefore, fog inhalation therapy is a kind for the treatment of ideal administration route of respiratory disease, wide at present
General use.
Certainly, atomization inspiration treatment is it should also be appreciated that control some details, if improper use, may also lead to it is bad after
Fruit.One of them are should correctly to carry out the control of atomization quantity.
But the existing vaporizer of existing market does not have the adjustable function of atomization rates, therefore for needing
The patient for controlling atomization quantity needs medical staff's manual control, and it is very inconvenient and very risky to operate.
State Intellectual Property Office of the People's Republic of China disclosed entitled " medical hyperbaric oxygen chamber on 08 10th, 2005
With drug atomising device " patent document (publication number: CN2715776) comprising have a medicinal atomized tank, medicinal atomized tank setting
Medical fluid is filled in the lower part of the inside of medical hyperbaric oxygen chamber, medicinal atomized tank, the oxygen supplying tube insertion medicine of atomizing power oxygen is provided
In medical fluid in object atomization tank, medical fluid is connected to the medicinal atomized indoor atomizer of tank epicoele by suction pipe, and upper chamber is connected to medicine
Property management road, drug pipeline and oxygen uptake pipeline and connecing are followed by oxygen face mask.This scheme, which does not disclose, yet can adjust atomization rates
Relevant programme.
Summary of the invention
The present invention is mainly to solve the skill that atomization rates are non-adjustable, inconvenient, risk is big etc. present in the prior art
Art problem provides a kind of adjustable atomization rates, convenient for the adjustable atomization circuit and control method of medical staff's control.
What the present invention was mainly addressed by following technical proposals in view of the above technical problems: a kind of adjustable mist
Change circuit, including micro controller unit, adjustable boosting unit and ultrasonic atomizatio unit, the micro controller unit are connected respectively to
Adjustable boosting unit and ultrasonic atomizatio unit, the adjustable boosting unit are connect with the ultrasonic atomizatio unit.
The working condition of micro-control unit controls are adjustable boosting unit and ultrasonic atomizatio unit, adjust ultrasonic vibration frequency and
Amplitude, to realize the adjustment to atomization rates.
Preferably, the ultrasonic atomizatio unit includes that circuit and atomization chip, the ultrasound letter occur for source of ultrasound signal
It includes resistance R7, resistance R8, capacitor C2, capacitor C4, inductance L2 and metal-oxide-semiconductor Q1 that circuit, which occurs, for number source, and the first of the inductance L2
End connection power supply+VP, second end connect the drain electrode of metal-oxide-semiconductor Q1, and the source electrode of metal-oxide-semiconductor Q1 is grounded by resistance R8, the grid of metal-oxide-semiconductor Q1
Pole connects by resistance R7 connection micro controller unit, capacitor C2 and capacitor C4 and is connected in parallel on the both ends of inductance L2 later, and atomization is brilliant
Piece is in parallel with inductance L2.
The electric energy of source of ultrasound signal is converted into atomization chip mechanical resonant by ultrasonic atomizatio unit, keeps liquid brilliant by atomization
Spray droplets are formed after the micropore mesh screen of on piece.
Preferably, the adjustable boosting unit includes boost converter U1, capacitor C1, capacitor C3, inductance L1, resistance
R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, diode D1, metal-oxide-semiconductor Q2 and metal-oxide-semiconductor Q3；The boost conversion
4 feet of device U1 and 5 feet connect input power+VIN, 2 feet ground connection, and the first end of capacitor C3 connects 5 feet of boost converter U1, separately
One end ground connection；1 foot of the anode connection boost converter U1 of diode D1, cathode are grounded by capacitor C1；The first of resistance R1
The cathode of end connection diode D1, second end connect 3 feet of boost converter U1；The first end of resistance R2 connects boost converter
3 feet of U1, second end ground connection；3 feet of the first end connection boost converter U1 of resistance R3, second end connect the leakage of metal-oxide-semiconductor Q2
Pole；3 feet of the first end connection boost converter U1 of resistance R4, second end connect the drain electrode of metal-oxide-semiconductor Q3；The grid of metal-oxide-semiconductor Q2
Pass through resistance R5 connection micro controller unit, source electrode ground connection；The grid of metal-oxide-semiconductor Q3 passes through resistance R6 connection micro controller unit,
Source electrode ground connection；Inductance L1 is connected across between 1 foot of boost converter U1 and 5 feet；The cathode of diode D1 is the end power supply+VP；Two
Pole pipe D1 is Schottky diode.
U1 is the boost converter of fixed frequency, by feedback pin 3 compared with internal reference voltage adjusting output voltage,
When exporting feedback voltage greater than internal reference voltage, reduces switch modulation pulse duty factor, so that output voltage is become smaller, work as feedback
When voltage is less than internal reference voltage, increases switch modulation pulse duty factor, output voltage is made to become larger, finally makes to export pressure stabilizing.
When the port of micro controller unit and resistance R5 and R6 connection all exports low level, N-channel MOS pipe Q2 and Q3 are not turned on,
Since 3 foot of feedback pin of U1 is error amplifier input pin, there is very high input impedance, input current can be ignored, because
The electric current I that this flows through R1 and R2 is equal, and I is equal to U1 internal reference voltage VREF divided by R1, then output voltage+VP can be calculated
=I × (R1+R2), I with VREF/R2 substitute into abbreviation it is available :+VP=VREF × (1+R1/R2), when micro-control unit with
When the port of resistance R5 connection exports high level, N-channel MOS pipe Q2 conducting, R2 becomes in parallel with R3 at this time, and resistance value becomes smaller, from
Calculation formula can release+VP and become larger, with should the port that is connect with resistance R6 of micro-control unit also export high level when, R2 change
At in parallel with R3 and R4, resistance value further becomes smaller, so that+VP is further enlarged, passes through micro-control unit and resistance R5 and R6 connect
Adjustable+VP the output voltage of the control of the port connect is basic, normal, high third gear.When the end that micro-control unit is connect with resistance R7
When mouth output high level, N-channel MOS pipe Q1 conducting, the electric current that+VP flows through inductance L2 is gradually increasing, and microcontroller is worked as in inductance accumulation of energy
When the port that unit is connect with resistance R7 exports low level, N-channel MOS pipe Q1 is by inductance L2 passes through atomizing piece afterflow, voltage
Atomizer both ends, driving atomizing piece vibration are applied to, L2 energy is discharged by atomizing piece, and control micro-control unit and resistance R7 connect
The adjustable atomizing piece driving signal frequency of PWM frequency of the port output connect, when the characteristic of driving signal frequency and atomizing piece
When frequency is consistent, electric current is maximum, and atomization quantity is also maximum.The port being connect simultaneously by controlling micro-control unit with resistance R5 and R6
Adjusting+VP output voltage, the adjustable voltage peak for being applied to atomizing piece both ends become the peak point current for flowing through atomizing piece
Change, to adjust the Oscillation Amplitude of atomizing piece, changes atomization rates.
A kind of adjustable atomization circuit control method is based on adjustable atomization circuit above-mentioned, comprising the following steps:
A, patient age is inputted；
B, patient condition is inputted；
C, micro-control unit selects suitable atomization quantity and atomizing type according to patient age and illness.
Different atomization quantity and atomizing type are needed under different situations.As child's laryngeal tissue develops not perfect, cavum laryngis
And vibrissa buffer function is small, a large amount of Neulized inhalations are easy to cause anoxic, therefore child carries out when atomization inspiration treatment atomization quantity not
It is easily excessive.In addition, for the patient of chronic obstructive emphysema, when atomization, should be using the gradual sucking side for adjusting atomization quantity
Method after waiting air flues to adapt to, then gradually increases atomization quantity that is, since small mist amount, low concentration, and respiratory time is no more than 10 every time
Minute；Because this kind of patient is mostly the elderly, respiratory tract adaptability is poor, pulmonary ventilation and dysfunction of ventilation, if mist at the beginning
Change amount is just very big, and a large amount of cold airs enter air flue, may cause bronchial spasm, causes to feel suffocated, and has difficulty in breathing.In addition, different
Drug also has different requirements to atomization quantity because of its different characteristics.
Bring substantial effect of the present invention is that the stepping that can carry out atomization rates is accurately adjusted, to realize atomization
The accurate adjusting of amount；In addition the circuit can also cooperate software systems, and can atomization rates be programmed with control, realize automatic adjust
Section.Medical staff can select suitable atomization rates to carry out atomization data according to the actual requirement of patient and drug, on the one hand
Patient can be made to be more suitable, more accurate treatment, reduced risks；On the other hand answering for medical staff's operation is substantially reduced
Polygamy reduces artificial risk, improves efficiency and medical and nursing quality.
Detailed description of the invention
Fig. 1 is a kind of system block diagram of the invention；
Fig. 2 is a kind of circuit diagram of the invention；
In figure: 1, micro-control unit, 2, adjustable boosting unit, 3, ultrasonic atomizatio unit.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment: a kind of adjustable atomization circuit of the present embodiment, as shown in Figure 1, include micro controller unit 1, can
Boosting unit 2 and ultrasonic atomizatio unit 3, micro controller unit is adjusted to be connected respectively to adjustable boosting unit and ultrasonic atomizatio unit,
The adjustable boosting unit is connect with the ultrasonic atomizatio unit.
As shown in Fig. 2, ultrasonic atomizatio unit includes that circuit and atomization chip, the source of ultrasound signal occur for source of ultrasound signal
The first end that circuit includes resistance R7, resistance R8, capacitor C2, capacitor C4, inductance L2 and metal-oxide-semiconductor Q1, the inductance L2 occurs to connect
Power supply+VP is met, second end connects the drain electrode of metal-oxide-semiconductor Q1, and the source electrode of metal-oxide-semiconductor Q1 is grounded by resistance R8, and the grid of metal-oxide-semiconductor Q1 is logical
Cross resistance R7 connection micro controller unit, be connected in parallel on the both ends of inductance L2 after capacitor C2 and capacitor C4 series connection, atomization chip with
Inductance L2 is in parallel.Adjustable boosting unit includes boost converter U1, capacitor C1, capacitor C3, inductance L1, resistance R1, resistance R2, electricity
Hinder R3, resistance R4, resistance R5, resistance R6, diode D1, metal-oxide-semiconductor Q2 and metal-oxide-semiconductor Q3；4 feet and 5 of the boost converter U1
Foot connects input power+VIN, 2 feet ground connection, 5 feet of the first end connection boost converter U1 of capacitor C3, other end ground connection；Two
1 foot of the anode connection boost converter U1 of pole pipe D1, cathode are grounded by capacitor C1；The first end of resistance R1 connects diode
The cathode of D1, second end connect 3 feet of boost converter U1；3 feet of the first end connection boost converter U1 of resistance R2, second
End ground connection；3 feet of the first end connection boost converter U1 of resistance R3, second end connect the drain electrode of metal-oxide-semiconductor Q2；The of resistance R4
One end connects 3 feet of boost converter U1, and second end connects the drain electrode of metal-oxide-semiconductor Q3；The grid of metal-oxide-semiconductor Q2 is connected by resistance R5
Micro controller unit, source electrode ground connection；The grid of metal-oxide-semiconductor Q3 passes through resistance R6 connection micro controller unit, source electrode ground connection；Inductance L1
It is connected across between 1 foot of boost converter U1 and 5 feet；The cathode of diode D1 is the end power supply+VP；Diode D1 is Schottky two
Pole pipe.
U1 is the boost converter of fixed frequency, by feedback pin 3 compared with internal reference voltage adjusting output voltage,
When exporting feedback voltage greater than internal reference voltage, reduces switch modulation pulse duty factor, so that output voltage is become smaller, work as feedback
When voltage is less than internal reference voltage, increases switch modulation pulse duty factor, output voltage is made to become larger, finally makes to export pressure stabilizing.
When GPIO0 and GPIO1 export low level, N-channel MOS pipe Q2 and Q3 are not turned on, since 3 foot of feedback pin of U1 is to miss
Poor amplifier input pin has very high input impedance, and input current can be ignored, therefore the electric current I for flowing through R1 and R2 is equal,
I is equal to U1 internal reference voltage VREF divided by R1, then output voltage+VP=I × (R1+R2), I VREF/R2 can be calculated
It is available to substitute into abbreviation :+VP=VREF × (1+R1/R2), when GPIO0 exports high level, N-channel MOS pipe Q2 conducting,
R2 becomes in parallel with R3 at this time, and resistance value becomes smaller, and can release+VP from calculation formula and become larger, with should GPIO1 also export high level
When, R2 becomes in parallel with R3 and R4, and resistance value further becomes smaller, so that+VP is further enlarged, passes through the control of GPIO0 and GPIO1
Adjustable+VP output voltage is basic, normal, high third gear.When GPIO2 exports high level, N-channel MOS pipe Q1 conducting ,+VP stream
The electric current for crossing inductance L2 is gradually increasing, inductance accumulation of energy, and when GPIO2 exports low level, N-channel MOS pipe Q1 is by inductance L2 is logical
Atomizing piece afterflow is crossed, voltage is applied to atomizer both ends, driving atomizing piece vibration, and L2 energy is discharged by atomizing piece, control
The adjustable atomizing piece driving signal frequency of PWM frequency of GPIO2 output, when the characteristic frequency of driving signal frequency and atomizing piece
When consistent, electric current is maximum, and atomization quantity is also maximum.It is adjustable simultaneously by control GPIO0 and GPIO1 adjusting+VP output voltage
It is applied to the voltage peak at atomizing piece both ends, makes the peak point current variation for flowing through atomizing piece, to adjust the vibration width of atomizing piece
Degree changes atomization rates.
A kind of adjustable atomization circuit control method of the present embodiment, comprising the following steps:
A, patient age is inputted；
B, patient condition is inputted；
C, micro-control unit selects suitable atomization quantity and atomizing type according to patient age and illness.
Step C specifically:
C1, judge that patient age Y whether less than 7 one full year of life, if it is, entering step C2, otherwise enters step C3；
C2, benchmark atomization quantity are set as Y × 10%+30%, enter step C4；
C3, benchmark atomization quantity are set as 100%, enter step C4；
C4, judge whether patient condition is chronic obstruction pulmonary emphysema, if it is, entering step C5；Otherwise it enters step
C7；
C5, using progressive atomizing type, specifically: primary atomization amount is 10%, increases 10% every 20 seconds atomization quantities, until
Atomization quantity reaches benchmark atomization quantity, maintains benchmark atomization quantity 7 minutes, stops atomization；
C6, interval repeat step C5 after 5-10 minutes, finish until medicinal atomized；
C7, using conventional atomizing type, specifically: atomization quantity is directly adjusted to benchmark atomization quantity, until medicinal atomized
It finishes.
In the present solution, atomization quantity is atomization rates, the also as proportional numbers of atomizer maximum atomization rates, such as currently
Atomization quantity is 50%, and as current atomization rates are the 50% of maximum atomization rates.
Atomization quantity and atomizing type are it is also contemplated that medicinal property also needs in step some drugs in control method
The following steps are included: input medicament categories, micro-control unit select matched atomization quantity, atomizing type from database in rapid C5
And correction amount carries out drug according to the atomization quantity and atomizing type being matched to if atomization quantity and atomizing type are not sky
The atomization quantity and atomizing type obtained according to age and illness is abandoned in atomization；If atomization quantity and atomizing type are sky, basis
Correction amount corrects the parameters such as benchmark atomization quantity, primary atomization amount, single nebulisation time, atomization interval, atomization quantity speedup；
It is also needed in step C6 the following steps are included: inputting medicament categories, micro-control unit selects matching from database
Atomization quantity, atomizing type and correction amount, if atomization quantity and atomizing type be not it is empty, according to the atomization quantity and mist being matched to
Change mode is atomized drug, abandons the atomization quantity and atomizing type obtained according to age and illness；If atomization quantity and mist
Change mode is sky, then corrects benchmark atomization quantity according to correction amount.
The atomization rates adjustable circuit of this programme allows atomizer to adjust best atomization speed according to different pharmaceutical characteristic
Rate makes droplet more fine uniform, is more advantageous to human lung's absorption, can also age according to patient and physical condition, adjust
Suitable atomization rates are saved, the comfort level of nebulae inhalation is improved.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although the terms such as micro-control unit, ultrasonic atomizatio unit, atomization quantity are used more herein, being not precluded makes
A possibility that with other terms.The use of these items is only for be more convenient to describe and explain essence of the invention；It
To be construed to any additional limitation disagreed with spirit of that invention.
Claims (1)
1. a kind of adjustable atomization circuit, which is characterized in that including micro controller unit, adjustable boosting unit and ultrasonic atomizatio
Unit, the micro controller unit are connected respectively to adjustable boosting unit and ultrasonic atomizatio unit, the adjustable boosting unit with
The ultrasonic atomizatio unit connection；The ultrasonic atomizatio unit includes that circuit and atomization chip occur for source of ultrasound signal, described super
It includes resistance R7, resistance R8, capacitor C2, capacitor C4, inductance L2 and transistor Q1 that circuit, which occurs, for acoustical signal source, the inductance L2's
First end connects power supply+VP, and second end connects the drain electrode of transistor Q1, and the source electrode of transistor Q1 is grounded by resistance R8, crystal
The grid of pipe Q1 is connected in parallel on the two of inductance L2 after capacitor C2 and capacitor C4 series connection by resistance R7 connection micro controller unit
End, atomization chip are in parallel with inductance L2；The adjustable boosting unit includes boost converter U1, capacitor C1, capacitor C3, inductance
L1, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, diode D1, transistor Q2 and transistor Q3；It is described
4 feet of boost converter U1 and 5 feet connect input power+VIN, and the first end of 2 feet ground connection, capacitor C3 connects boost converter U1
5 feet, the other end ground connection；1 foot of the anode connection boost converter U1 of diode D1, cathode are grounded by capacitor C1；Resistance
The cathode of the first end connection diode D1 of R1, second end connect 3 feet of boost converter U1；The first end of resistance R2, which connects, to be risen
3 feet of pressure converter U1, second end ground connection；3 feet of the first end connection boost converter U1 of resistance R3, second end connect crystal
The drain electrode of pipe Q2；3 feet of the first end connection boost converter U1 of resistance R4, second end connect the drain electrode of transistor Q3；Crystal
The grid of pipe Q2 passes through resistance R5 connection micro controller unit, source electrode ground connection；The grid of transistor Q3 is micro- by resistance R6 connection
Controller unit, source electrode ground connection；Inductance L1 is connected across between 1 foot of boost converter U1 and 5 feet；The cathode of diode D1 is electricity
The source end+VP；Diode D1 is Schottky diode.
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| CN108355210A (en) * | 2018-02-27 | 2018-08-03 | 华健 | A kind of atomizer of variable-frequency variable-voltage |
| WO2019165663A1 (en) * | 2018-02-27 | 2019-09-06 | 华健 | Atomizer having variable frequency and variable voltage |
| CN109999282A (en) * | 2018-04-20 | 2019-07-12 | 广东东阳光药业有限公司 | A kind of atomising device and quick break method |
| CN108815654A (en) * | 2018-04-24 | 2018-11-16 | 张莹 | A kind of novel Respiratory Medicine atomization oxygenerator |
| CN109150159A (en) * | 2018-10-08 | 2019-01-04 | 广州厚达电子科技有限公司 | The ultrasonic ultrasonic delay line memory driving circuit and driving method of Low-voltage Low-power |
| CN109127257A (en) * | 2018-10-29 | 2019-01-04 | 无锡中微爱芯电子有限公司 | A kind of atomizer dedicated control circuit |
| CN110243433B (en) * | 2019-05-21 | 2021-03-30 | 广州畅呼医疗器械有限公司 | Water shortage detection system and method for atomizer and atomizer |
| CN113813478B (en) * | 2021-10-11 | 2022-06-21 | 河南省儿童医院郑州儿童医院 | Automatic control method and system for drug delivery of atomizer |
| CN113976380B (en) * | 2021-10-27 | 2023-01-13 | 深圳宇凡微电子有限公司 | Method for driving atomization sheet to work by self-made high-frequency pwm signal of single chip microcomputer |
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