CN209563498U - A kind of the anti-dry control circuit and electronic cigarette of electronic cigarette - Google Patents
A kind of the anti-dry control circuit and electronic cigarette of electronic cigarette Download PDFInfo
- Publication number
- CN209563498U CN209563498U CN201920100215.9U CN201920100215U CN209563498U CN 209563498 U CN209563498 U CN 209563498U CN 201920100215 U CN201920100215 U CN 201920100215U CN 209563498 U CN209563498 U CN 209563498U
- Authority
- CN
- China
- Prior art keywords
- resistance
- connect
- mcu
- control module
- triode
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Landscapes
- Dc-Dc Converters (AREA)
Abstract
The utility model relates to a kind of anti-dry control circuits of electronic cigarette, which is characterized in that including power supply module, buck control module, power control module, detection module and MCU；First output end of the power supply module is connect with buck control module, and second output terminal is connect with MCU；Power control module and detection module are connect with an atomizer；The MCU is connect with buck control module, and buck control module is connect with power control module；MCU is used to pass sequentially through the output voltage of buck control module, power control module control atomizer, and the working condition for controlling detection module, and receives the detection signal of detection module feedback.For the utility model by providing the control circuit of the resistance variations of detectable electronic smoke atomizer, testing result is accurate, and either temp controlled heating core is also that non-temp controlled heating core is applicable in, and application range is wider.
Description
Technical field
The utility model relates to electronic cigarette technical field, the anti-dry control circuit and electronics of specifically a kind of electronic cigarette
Cigarette.
Background technique
The atomizer of electronic cigarette is generally divided into temp controlled heating core (Ni, Ti, SS316 etc. materials) and non-temp controlled heating core
(safe that, ferrum-chromium-aluminum, nickel chromium triangle etc.), the Experience Degree that temp controlled heating core uses can be better than non-temp controlled heating core very much, mainly
Anti-dry cannot be accomplished by being non-temperature control, it is main this is because non-temp controlled heating core during heating, change in resistance is very small,
TCR is relatively very stable；And temp controlled heating core can accomplish anti-dry but need just to be able to satisfy in mode and material one-to-one correspondence
It is required that such user's operation get up it is more troublesome.In order to which the usage experience sense for meeting user is more preferable, need timely and accurately to detect
The resistance value of the atomizer of electronic cigarette out, to judge whether electronic cigarette occurs dry combustion method, to prevent dry combustion method.
Utility model content
In view of the deficiencies of the prior art, one of the purpose of this utility model provides a kind of anti-dry control electricity of electronic cigarette
Road, be able to solve detection electronic cigarette atomizer resistance value the problem of；
The two of the purpose of this utility model provide a kind of electronic cigarette, are able to solve the resistance of the atomizer of detection electronic cigarette
The problem of value.
Realize the technical solution of one of the purpose of this utility model are as follows: a kind of anti-dry control circuit of electronic cigarette, it is special
Sign is, including power supply module, buck control module, power control module, detection module and MCU；The power supply module
First output end is connect with buck control module, and second output terminal is connect with MCU；Power control module and detection module with
The connection of one atomizer；
The MCU is connect with buck control module, and buck control module is connect with power control module；MCU is used for
The output voltage of buck control module, power control module control atomizer is passed sequentially through, and for controlling detection module
Working condition, and receive detection module feedback detection signal.
It further, further include acoustic-optic alarm, acoustic-optic alarm is connect with MCU.
Further, the detection module includes triode Q3, triode Q4, resistance R32, resistance R33, resistance R34, electricity
Hinder R35, resistance R36, resistance R37, resistance R38 and capacitor C16；The base stage of the triode Q4 and the output end of MCU connect, and three
The emitter of pole pipe Q4 is grounded, and the collector of triode Q4 is connect by resistance R38 with the emitter of triode Q3, triode Q3
Emitter and the anode of power supply module connect, the base stage of triode Q3 is connect by resistance R37 with the collector of triode Q4；
Resistance R35 and resistance R36 connects and composes the first series arm, and resistance R33 and resistance R32 connect and compose the second series arm, and three
The collector of pole pipe Q3 is grounded by the first series arm, the collector of triode Q3 pass through the second series arm and MCU the
The connection of two analog-to-digital conversion input terminals, one end of atomizer are connected between resistance R32 and resistance R33, other end ground connection；Capacitor
One end of C16 is connected between the second analog-to-digital conversion input terminal of resistance R32 and MCU, the other end ground connection of capacitor C16；Resistance
Connecting node connection between one end and resistance R36 and resistance R35 of R34, the other end of resistance R34 and the first modulus of MCU
Conversion inputs connection.
Further, the detection module further includes clamp circuit, and the clamp circuit includes first diode and second
The anode of diode, first diode is connect with the collector of triode Q3, anode and the resistance R34 of the second diode
The cathode of other end connection, first diode and the second diode is connect with power supply module.
Further, the triode Q4 is NPN type triode.
Further, the triode Q3 is PNP type triode.
Further, the power supply module includes DC power supply and LDO, the output end of DC power supply and the input terminal of LDO
Connection, the first output end of LDO are connect with buck control module, and second output terminal is connect with MCU.
Further, the power control module includes amplifier U15, resistance R11, resistance R19, resistance R20, resistance
R21, capacitor C11, capacitor C25 and diode D9；The non-inverting input terminal of amplifier U15 is connect with one end of resistance R11, amplifier
The inverting input terminal of U15 is connect with the other end of resistance R11, and the ground terminal of amplifier U15 and resetting end are grounded jointly, amplifier
The power end of U15 is connect with a power supply, and the power end of amplifier U5 and the connecting node of cable are grounded by capacitor C25, amplification
The output end of device U15 and the third analog-to-digital conversion input terminal of MCU connect, between the non-inverting input terminal and resistance R11 of amplifier U15
Connecting node connect with the output end of buck control module, the input terminal of buck control module is connect with power supply module,
One end of connecting node and atomizer between the inverting input terminal and resistance R11 of amplifier U15 connects, the other end of atomizer
Ground connection；Resistance R19 and resistance R20 connect and compose third series arm, one end of third series arm and resistance R11 and atomizer
Connecting node connection, other end ground connection, resistance R21 and capacitor C24 connect and compose the 4th series arm, the 4th series arm
One end ground connection, the other end are connected between resistance R19 and resistance R20, connecting node and MCU between resistance R21 and capacitor C24
The 4th analog-to-digital conversion input terminal connection；One end of capacitor C11 is also respectively connected in the connecting node of resistance R11 and atomizer
And the cathode of diode D9, the plus earth of diode D9, the other end ground connection of capacitor C11.
Realize two technical solution of the purpose of this utility model are as follows: a kind of electronic cigarette comprising the electronic cigarette is prevented
Dry combustion method control circuit
The utility model has the following beneficial effects: the utility model is by providing the resistance variations of detectable electronic smoke atomizer
Control circuit, judge whether there is generation dry combustion method in time, to prevent the generation of dry combustion method in time, testing result is accurate no matter
Be temp controlled heating core be also non-temp controlled heating core be applicable in, application range is wider.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model；
In figure, 1- power control module, 2- detection module.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model:
As shown in Figure 1, a kind of anti-dry control circuit of electronic cigarette, including power supply module, buck control module, power
Control module 1, detection module 2 and MCU, MCU are preferably single-chip microcontroller.
Power supply module includes DC power supply and LDO (Chinese is known as low pressure difference linear voltage regulator).
The power supply module, for providing operating voltage for buck control module and MCU；
Power control module 1 and detection module 2 are connect with an atomizer, and atomizer that is to say load Rct.
The power control module 1 includes amplifier U15, resistance R11, resistance R19, resistance R20, resistance R21, capacitor
C11, capacitor C25 and diode D9, the non-inverting input terminal (being indicated in figure with IN+) of amplifier U15 and one end of resistance R11 connect
It connects, the inverting input terminal (being indicated in figure with IN-) of amplifier U15 is connect with the other end of resistance R11, the ground connection of amplifier U15
End and resetting end are grounded jointly, and the power end of amplifier U15 is connect with a power supply, and power supply is for providing the work of amplifier U15
Voltage, the power supply are the power supply of 10V, and the power end of amplifier U5 and the connecting node of cable are grounded by capacitor C25, are amplified
The output end of device U15 and the third analog-to-digital conversion input terminal of MCU connect, i.e., the company of the line AD_C and MCU of amplifier U15 in figure
Line AD_C connection, the output of connecting node and buck control module between the non-inverting input terminal and resistance R11 of amplifier U15
End connection, the input terminal of buck control module are connect with DC power supply；The electric current of buck control module output passes through resistance
R11 is simultaneously converted to voltage signal after amplifier U15 amplification, which obtains digital electricity through the third analog-to-digital conversion of MCU
Pressure, the digital voltage are denoted as UNumber, so as to calculate the electric current for flowing through resistance R11The electric current, which that is to say, to be flowed through
The electric current of Rct is loaded, and loads the voltage V at the both ends RctRctIt can be by being calculated after resistance R19 and resistance R20 partial pressure, therefore it can be with
The realtime power P for calculating load, then have P=UNumber*IR11；
Connecting node between the inverting input terminal and resistance R11 of amplifier U15 is connect with one end of load Rct, is loaded
The other end of Rct is grounded, and in the present embodiment, loads the atomizer for electronic cigarette；Resistance R19 and resistance R20 connect and compose third
Series arm, one end of third series arm and resistance R11 are connect with the connecting node of load Rct, resistance R21 and capacitor C24
The 4th series arm, one end ground connection of the 4th series arm are connected and composed, the other end is connected between resistance R19 and resistance R20,
4th analog-to-digital conversion input terminal of connecting node and MCU between resistance R21 and capacitor C24 connects, i.e., third series connection branch in figure
The line AD_V of road is connect with the line AD_V on MCU；Capacitor is also respectively connected in the connecting node of resistance R11 and load
One end of C11 and the cathode of diode D9, the plus earth of diode D9, the other end ground connection of capacitor C11.
The detection module 2 includes triode Q3, triode Q4, clamp circuit D10, several resistance and several capacitors；Institute
The base stage (i.e. the pole b) for stating triode Q4 is connect with the output end of MCU, and MCU provides low and high level, three poles to the base stage of triode Q4
The emitter (i.e. the pole e) of pipe Q4 is grounded, and the collector (i.e. the pole c) of triode Q4 passes through the emitter of resistance R38 and triode Q3
Connection, the emitter of triode Q3 connect with the anode of DC power supply namely figure at B+ connection DC power supply anode,
DC power supply provides positive voltage to the emitter of triode Q3, and DC power supply can be battery, and the base stage of triode Q3 passes through electricity
Resistance R37 is connect with the collector of triode Q4.Resistance R35 and resistance R36 connects and composes the first series arm, resistance R33 and electricity
Resistance R32 connects and composes the second series arm, and the collector of triode Q3 is grounded by the first series arm, the current collection of triode Q3
Pole is connected by the first anode of the second series arm and bipolar diode, and the one end for loading Rct is connected to resistance R32 and resistance
Between R33, the other end ground connection of Rct is loaded.The second analog-to-digital conversion input terminal (not shown) of MCU and capacitor C16's
One end is both connected between resistance R32 and the first anode of bipolar diode, i.e., the second analog-to-digital conversion of AD2 and MCU in figure
Input terminal connection, the other end ground connection of capacitor C16.Connecting node between one end and resistance R36 and resistance R35 of resistance R34
The first analog-to-digital conversion (not shown) input terminal of connection, the other end of resistance R34 and MCU connect, i.e. AD1 in figure with
The first analog-to-digital conversion input terminal of MCU connects, and the anode of the second diode is connect with the other end of resistance R34, and the one of capacitor C21
End connect with the other end of resistance R34, and the other end of capacitor C21 is grounded, and the cathode of first diode and the second diode are born
It is extremely connect with power supply module, power supply module provides clamp voltage, the present embodiment clamper to first diode and the second diode
Voltage is 3.3V, and first diode and the second diode constitute clamp circuit D10.
The output end Uout of load Rct is connect with MCU, and MCU controls the output variable condition of load voltage.
In the present embodiment, triode Q4 is NPN type triode, and triode Q3 is PNP type triode.
The present embodiment is additionally provided with acoustic-optic alarm, and acoustic-optic alarm is connect with MCU, and MCU controls acoustic-optic alarm
Working condition.
The input terminal of the LDO is connect with DC power supply, and output end is connect respectively with MCU and clamp circuit D10 connection, is used
Voltage in conversion DC power supply and the operating voltage needed for providing to MCU and clamp circuit D10, such as to clamp circuit D10
The clamp voltage of 3.3V is provided.
The detection signal of the detection module feedback includes voltage VAD1With voltage VAD2, VAD1It is connect for resistance R34 with MCU
Voltage value at one end, VAD2For the voltage value between resistance R33 and resistance R32, and 1. atomizer is calculated by formula
Resistance value Resi。
Wherein, ResiIndicate the resistance value that i-th is measured.
MCU passes sequentially through buck control module and power control module 1 maintains electronic cigarette to work normally and controls load
Rct output voltage, and the working condition for controlling detection module 2, and receive the detection signal of detection module feedback；Work as institute
The output voltage for stating atomizer is in when completely closing output state, and Xiang Suoshu detection module exports third and controls signal, i.e., to
Triode Q4 provides high level, in the open state to control the detection module, and acquires the inspection of the detection module feedback
Signal is surveyed, thus according to the resistance value of the detection atomized device of signal.
The utility model further relates to a kind of electronic cigarette comprising the anti-dry control circuit.
For those skilled in the art, it can make other each according to the above description of the technical scheme and ideas
Kind is corresponding to be changed and deforms, and all these change and deform the guarantor that all should belong to the utility model claims
Within the scope of shield.
Claims (9)
1. a kind of anti-dry control circuit of electronic cigarette, which is characterized in that including power supply module, buck control module, power
Control module, detection module and MCU；First output end of the power supply module is connect with buck control module, the second output
End is connect with MCU；Power control module and detection module are connect with an atomizer；
The MCU is connect with buck control module, and buck control module is connect with power control module；MCU is for successively
The output voltage of atomizer, and the work for controlling detection module are controlled by buck control module, power control module
Make state, and receives the detection signal of detection module feedback.
2. the anti-dry control circuit of electronic cigarette according to claim 1, it is characterised in that: further include sound-light alarm dress
It sets, acoustic-optic alarm is connect with MCU.
3. the anti-dry control circuit of electronic cigarette according to claim 1, it is characterised in that: the detection module includes three
Pole pipe Q3, triode Q4, resistance R32, resistance R33, resistance R34, resistance R35, resistance R36, resistance R37, resistance R38 and capacitor
C16；The base stage of the triode Q4 and the output end of MCU connect, the emitter ground connection of triode Q4, the collector of triode Q4
It is connect by resistance R38 with the emitter of triode Q3, the emitter of triode Q3 and the anode of power supply module connect, triode
The base stage of Q3 is connect by resistance R37 with the collector of triode Q4；Resistance R35 and resistance R36 connects and composes the first series connection branch
Road, resistance R33 and resistance R32 connect and compose the second series arm, and the collector of triode Q3 is grounded by the first series arm,
The collector of triode Q3 is connected by the second analog-to-digital conversion input terminal of the second series arm and MCU, and one end of atomizer connects
It connects between resistance R32 and resistance R33, other end ground connection；One end of capacitor C16 is connected to the second modulus of resistance R32 and MCU
Between conversion inputs, the other end of capacitor C16 is grounded；Connection between one end and resistance R36 and resistance R35 of resistance R34
Node connection, the other end of resistance R34 and the first analog-to-digital conversion input terminal of MCU connect.
4. the anti-dry control circuit of electronic cigarette according to claim 3, it is characterised in that: the detection module further includes
Clamp circuit, the clamp circuit include first diode and the second diode, and the anode of first diode is with triode Q3's
The anode of collector connection, the second diode is connect with the other end of the resistance R34, first diode and the second diode
Cathode is connect with power supply module.
5. the anti-dry control circuit of electronic cigarette according to claim 3, it is characterised in that: the triode Q4 is NPN
Type triode.
6. the anti-dry control circuit of electronic cigarette according to claim 3, it is characterised in that: the triode Q3 is PNP
Type triode.
7. the anti-dry control circuit of electronic cigarette according to claim 1, it is characterised in that: the power supply module includes straight
Galvanic electricity source and LDO, the output end of DC power supply and the input terminal of LDO connect, the first output end and buck control module of LDO
Connection, second output terminal are connect with MCU.
8. the anti-dry control circuit of electronic cigarette according to claim 1, it is characterised in that: the power control module packet
Include amplifier U15, resistance R11, resistance R19, resistance R20, resistance R21, capacitor C11, capacitor C25 and diode D9；Amplifier
The non-inverting input terminal of U15 is connect with one end of resistance R11, and the inverting input terminal of amplifier U15 and the other end of resistance R11 connect
It connects, the ground terminal of amplifier U15 and resetting end are grounded jointly, and the power end of amplifier U15 is connect with a power supply, amplifier U5's
The connecting node of power end and cable is grounded by capacitor C25, and the output end of amplifier U15 and the third analog-to-digital conversion of MCU are defeated
Enter end connection, the output end of connecting node and buck control module between the non-inverting input terminal and resistance R11 of amplifier U15
Connection, the input terminal of buck control module is connect with power supply module, between the inverting input terminal and resistance R11 of amplifier U15
Connecting node and one end of atomizer connect, the other end of atomizer ground connection；Resistance R19 and resistance R20 connect and compose third
The connection of the connecting node of series arm, one end of third series arm and resistance R11 and atomizer, other end ground connection, resistance R21
The 4th series arm, one end ground connection of the 4th series arm are connected and composed with capacitor C24, the other end is connected to resistance R19 and electricity
It hinders between R20, the 4th analog-to-digital conversion input terminal of connecting node and MCU between resistance R21 and capacitor C24 connects；In resistance
One end of capacitor C11 and the cathode of diode D9, the anode of diode D9 is also respectively connected in the connecting node of R11 and atomizer
Ground connection, the other end ground connection of capacitor C11.
9. a kind of electronic cigarette, which is characterized in that further include that the anti-dry of the described in any item electronic cigarettes of claim 1-8 such as controls
Circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920100215.9U CN209563498U (en) | 2019-01-21 | 2019-01-21 | A kind of the anti-dry control circuit and electronic cigarette of electronic cigarette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920100215.9U CN209563498U (en) | 2019-01-21 | 2019-01-21 | A kind of the anti-dry control circuit and electronic cigarette of electronic cigarette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209563498U true CN209563498U (en) | 2019-11-01 |
Family
ID=68332457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920100215.9U Active CN209563498U (en) | 2019-01-21 | 2019-01-21 | A kind of the anti-dry control circuit and electronic cigarette of electronic cigarette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209563498U (en) |
-
2019
- 2019-01-21 CN CN201920100215.9U patent/CN209563498U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109588785A (en) | A kind of anti-dry control circuit of electronic cigarette | |
| CN208580348U (en) | A kind of constant current load circuit and electronic load and power parameter test macro | |
| CN104062507A (en) | Battery internal resistance measuring instrument | |
| CN109062304A (en) | A kind of constant current load circuit and a kind of electronic load and related system | |
| CN208506629U (en) | A kind of power supply circuit based on far-end feedback | |
| CN207851026U (en) | Systematic gas monitoring system | |
| CN209563498U (en) | A kind of the anti-dry control circuit and electronic cigarette of electronic cigarette | |
| CN211697923U (en) | High-precision constant-resistance analog load adjusted through program-controlled digital potentiometer | |
| CN212008876U (en) | Circuit for monitoring working state of switching power supply | |
| CN102157965A (en) | Charging control device and voltage detecting method for eliminating switch internal resistance by voltage clamping | |
| CN2304130Y (en) | D. C. resistance detecting instrument | |
| WO2022056923A1 (en) | Constant current source sampling circuit and method | |
| CN214376912U (en) | Industrial field data wireless acquisition and transmission device | |
| CN204154856U (en) | Triode amplifies test circuit | |
| CN110346731B (en) | Battery current detection circuit for communication | |
| CN207964135U (en) | pressure sensor temperature compensation circuit | |
| CN208738832U (en) | A kind of test power supply with telemetry function | |
| CN207232380U (en) | Communication module of intelligent electric energy meter interface load capacity test device | |
| CN206618505U (en) | A kind of Thermistor Temperature Measurement system | |
| CN214067341U (en) | Battery internal resistance/voltage converter | |
| CN113960371A (en) | Resistance measuring circuit of initiating explosive device ignition return circuit | |
| CN110456141A (en) | A kind of flash over-current detection circuit and its method | |
| CN207081759U (en) | A kind of electronic circuit breaker of electronic circuit breaker current sampling circuit and the application circuit | |
| CN205845269U (en) | Transformator running temperature pressure out-of-limit alarming device | |
| CN209690415U (en) | A kind of intrinsic standoff ratio load detecting circuit and electronic cigarette |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |