CN114618735B - Atomization driving circuit and atomization device - Google Patents
Atomization driving circuit and atomization device Download PDFInfo
- Publication number
- CN114618735B CN114618735B CN202011454827.1A CN202011454827A CN114618735B CN 114618735 B CN114618735 B CN 114618735B CN 202011454827 A CN202011454827 A CN 202011454827A CN 114618735 B CN114618735 B CN 114618735B
- Authority
- CN
- China
- Prior art keywords
- switch
- circuit
- energy storage
- power supply
- level signal
- 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
- 238000000889 atomisation Methods 0.000 title abstract description 44
- 238000004146 energy storage Methods 0.000 claims abstract description 86
- 239000000758 substrate Substances 0.000 claims abstract description 8
- 239000003990 capacitor Substances 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 12
- 239000011159 matrix material Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
- B05B17/0653—Details
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M11/00—Power conversion systems not covered by the preceding groups
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application provides an atomization driving circuit and an atomization device, wherein the atomization driving circuit comprises: the atomizing sheet is used for atomizing the substrate to be atomized; the energy storage circuit is connected with the atomizing sheet and used for storing electric energy to drive the atomizing sheet; the direction switching circuit is connected with the energy storage circuit and is used for charging the energy storage circuit by using a power supply voltage in a first charging mode in a first time period and charging the energy storage circuit by using the power supply voltage in a second charging mode in a second time period. The atomization conversion efficiency is improved.
Description
Technical Field
The application relates to the field of electronic atomization devices, in particular to an atomization driving circuit and an atomization device.
Background
The ultrasonic atomizer generally atomizes the substrate to be atomized in an excitation mode, and the method is that a driving circuit sends out a signal to drive an ultrasonic atomizing sheet, the ultrasonic atomizing sheet converts electric energy into ultrasonic energy, and the ultrasonic energy atomizes the substrate to be atomized into tiny fog particles.
The driving circuits adopted in the market at present are generally capacitance three-point self-oscillation circuits and half-wave driving circuits, the atomization driving circuits are low in price, atomization effect can be achieved, and atomization quantity can also meet requirements. However, the driving waveforms at the two ends of the atomizing sheet are irregular, the conversion efficiency is low, and the single-side driving amplitude is large
Disclosure of Invention
The application provides an atomization driving circuit and an atomization device, which are used for improving atomization conversion efficiency.
In order to solve the technical problems, the first technical scheme provided by the application is as follows: provided is an atomization driving circuit including: the atomizing sheet is used for atomizing the substrate to be atomized; the energy storage circuit is connected with the atomizing sheet and used for storing electric energy to drive the atomizing sheet; the direction switching circuit is connected with the energy storage circuit and is used for charging the energy storage circuit by using a power supply voltage in a first charging mode in a first time period and charging the energy storage circuit by using the power supply voltage in a second charging mode in a second time period.
The direction switching circuit comprises a first input end and a second output end; when the first input end receives a first level signal, the direction switching circuit charges the energy storage circuit by utilizing the power supply voltage in the first time period through a first charging path; and when the second input end receives the first level signal, the direction switching circuit charges the energy storage circuit by using the power supply voltage in the second time period through a second charging path.
The direction switching circuit further comprises a first output end and a second output end, and the atomizing sheet is connected with the direction switching circuit in parallel through the first output end and the second output end.
The energy storage circuit comprises an energy storage element, wherein the energy storage element is connected with the atomizing sheet in series and is connected with the first output end.
Wherein the first charging path includes: the first push-pull circuit is connected with a power supply and the first output end; when the first input end receives the first level signal, the first push-pull circuit charges the energy storage element from a first node of the energy storage element through the first output end by using the power supply voltage provided by the power supply.
Wherein the first charging circuit further comprises: the first switch circuit is connected with the first input end and the first push-pull circuit; when the first input end receives the first level signal, the first switch circuit is conducted so as to increase the driving capability of the first push-pull circuit.
Wherein the second charging path includes: the second push-pull circuit is connected with a power supply and the second output end; and when the second input end receives the first level signal, the second push-pull circuit charges the energy storage element from the second node of the energy storage element through the second output end by utilizing the power supply voltage provided by the power supply.
Wherein the second charging path includes: the second switch circuit is connected with the second input end and the second push-pull circuit; when the second input end receives the first level signal, the second switch circuit is conducted so as to increase the driving capability of the second push-pull circuit.
Wherein the first push-pull circuit includes: the second switch comprises a first passage end, a second passage end and a control end, wherein the control end of the second switch is connected with the first input end, the first passage end of the second switch is connected with the power supply, and the second passage end of the second switch is connected with the first output end; the control end of the third switch is connected with the second input end, the first passage end of the third switch is connected with the first output end, and the second passage end of the third switch is grounded; the first switching circuit includes: the first switch comprises a first passage end, a second passage end and a control end, wherein the control end of the first switch is connected with the first input end to receive the first level signal, the first passage end of the first switch is connected with the power supply and the control end of the second switch, and the second passage end of the first switch is grounded.
Wherein the second push-pull circuit includes: the control end of the fifth switch is connected with the second input end, the first path end of the fifth switch is connected with the power supply, and the second path end of the fifth switch is connected with the second output end; the control end of the sixth switch is connected with the first input end, the first passage end of the sixth switch is connected with the second output end, and the second passage end of the sixth switch is grounded; the second switching circuit includes: the fourth switch comprises a first channel end, a second channel end and a control end, wherein the control end of the fourth switch is connected with the second input end to receive the first level signal, the first channel end of the fourth switch is connected with the power supply, and the control end of the fifth switch is grounded.
Wherein, the atomizing drive circuit still includes: and the capacitor is connected with the atomizing sheet in parallel.
In order to solve the technical problems, a second technical scheme provided by the application is as follows: there is provided an atomizing device comprising: an atomising driver circuit according to any of the previous claims.
The atomization driving circuit provided by the application has the beneficial effects that the atomization driving circuit is different from the situation in the prior art, and can charge the energy storage circuit by using the power supply voltage in a first charging mode in a first time period and charge the energy storage circuit by using the power supply voltage in a second charging mode in a second time period so as to increase the driving voltage for driving the atomization sheet in the energy storage circuit; and can make the drive voltage at atomizing piece both ends the same, improve atomization conversion efficiency.
Drawings
For a clearer description of the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a schematic diagram of a first embodiment of an atomizing drive circuit according to the present disclosure;
FIG. 2 is a schematic diagram of a second embodiment of an atomizing drive circuit according to the present disclosure;
FIG. 3 is a schematic diagram of a third embodiment of an atomizing drive circuit according to the present disclosure;
FIG. 4 is a waveform diagram of a first level signal and a second level signal;
FIG. 5 is a voltage waveform diagram of points A and B according to the present application;
FIG. 6 is a voltage waveform diagram of points A and D according to the present application;
FIG. 7 is a waveform diagram of the voltage across the atomizing sheet of the present application after superposition;
FIG. 8 is a waveform diagram of the prior art superimposed voltage across an atomizer plate;
fig. 9 is a schematic structural view of an embodiment of the atomizing device according to the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, a schematic structural diagram of a first embodiment of an atomization driving circuit according to the present application is shown, and in particular, the atomization driving circuit includes an atomization sheet 11, a tank circuit 12, and a direction switching circuit 13.
Wherein the atomizing sheet 11 is used for atomizing a substrate to be atomized. The energy storage circuit 12 is connected to the atomizing plate 11 for storing electric energy to drive the atomizing plate 11. The direction switching circuit 13 is connected to the energy storage circuit 12 and the atomizing sheet 11, and the direction switching circuit 13 is configured to charge the energy storage circuit 12 with the power supply voltage in a first charging manner in a first period of time, and charge the energy storage circuit 12 with the power supply voltage in a second charging manner in a second period of time, so as to increase a driving voltage for driving the atomizing sheet 11 in the energy storage circuit 12. Specifically, the first charging mode is to charge the energy storage circuit 12 from the point a to the point B by using the power supply voltage, and the second charging mode is to charge the energy storage circuit 12 from the point B to the point a by using the power supply voltage.
Specifically, the direction switching circuit 13 includes a first input terminal m1 and a second input terminal m2. When the first input terminal m1 receives the first level signal, the direction switching circuit 13 charges the tank circuit 12 with the power supply voltage for a first period of time through the first charging path. At this time, the power supply voltage charges the energy storage circuit 12 from the point a to the point B. It will be appreciated that when the first input terminal m1 receives the first level signal, the second input terminal m2 receives the second level signal.
When the second input terminal m2 receives the first level signal, the direction switching circuit 13 charges the tank circuit 12 with the power supply voltage for a second period of time through the second charging path. At this time, the power supply voltage charges the energy storage circuit 12 from the point B to the point a, and it can be understood that the first input terminal m1 receives the second level signal when the second input terminal m2 receives the first level signal.
Specifically, as shown in fig. 1, when the first input terminal m1 receives the first level signal, the direction switching circuit 13 charges the energy storage circuit 12 from the point a using the power supply voltage in the first period. When the second input terminal m2 receives the first level signal, the direction switching circuit 13 charges the tank circuit 12 from the point B using the power supply voltage for a second period of time. Therefore, the energy storage circuit 12 can be in the positive charge state and the negative charge state in a time sharing manner, so that the voltage doubling function is realized, the peak voltage of sine waves at two ends of the atomizing sheet 11 is increased, the driving amplitude is increased, and the atomizing efficiency is improved.
Referring to fig. 2, a schematic structural diagram of a second embodiment of the atomization driving circuit according to the present application is different from the first embodiment in that the atomization driving circuit further includes a capacitor C. Specifically, the capacitor C is connected in parallel with the atomizing plate 11 and in series with the tank circuit 12. The capacitor C is used to filter out clutter in the sine wave.
Referring to fig. 3, a schematic structural diagram of a third embodiment of the atomization driving circuit according to the present application is shown, and in this embodiment, the direction switching circuit 13 further includes a first output terminal n1 and a second output terminal n2, and the atomization sheet 11 is connected in parallel with the direction switching circuit 13 through the first output terminal n1 and the second output terminal n2. Specifically, the atomizing plate 11 includes a first end (as indicated by point B in fig. 3) and a second end (as indicated by point D in fig. 3), wherein the first end of the atomizing plate 11 is connected to the first output end n1, and the second end of the atomizing plate 11 is connected to the second output end n2.
The energy storage circuit 12 includes an energy storage element L, which is connected in series with the atomizing plate 11 and is connected to the first output terminal n1. In one embodiment, the energy storage element L is an inductor, and includes a first end and a second end, wherein the second end (e.g. point B in fig. 3) of the energy storage element L is connected to the first end of the atomizing sheet 11, and the first end (e.g. point a in fig. 3) of the energy storage element L is connected to the first output end n1.
When the first input terminal m1 receives the first level signal, the direction switching circuit 13 charges the energy storage circuit 12 with the power supply voltage VCC in a first period of time through the first charging path. Wherein the first charging path includes: a first push-pull circuit 132. The first push-pull circuit 132 is connected to the power source and the first output terminal n1. When the first input terminal m1 receives the first level signal, the first push-pull circuit 132 charges the energy storage element L from the first node a through the first output terminal n1 by using the power voltage VCC provided by the power supply.
Further, the first charging path further includes: a first switching circuit 131. The first switch circuit 131 is connected to the first input terminal m1 and the first push-pull circuit 132. When the first input terminal m1 receives the first level signal, the first switch circuit 131 is turned on, so that the first push-pull circuit 132 charges the energy storage element L from the first node a through the first output terminal n1 by using the power voltage VCC provided by the power supply. The first switching circuit 131 can increase the driving capability of the first push-pull circuit 132.
When the second input terminal m2 receives the first level signal, the direction switching circuit 13 charges the energy storage circuit 12 with the power supply voltage VCC in a second period of time through the second charging path. Wherein the second charging path includes: a second push-pull circuit 134. The second push-pull circuit 134 is connected to the power source and the second output terminal n2. When the second input terminal m2 receives the first level signal, the second push-pull circuit 134 charges the energy storage element L from the second node B through the second output terminal n2 by using the power voltage VCC provided by the power supply.
Further, the second charging path further includes: a second switching circuit 133. The second switch circuit 133 is connected to the second input terminal m2 and the second push-pull circuit 134. When the second input terminal m2 receives the first level signal, the second switch circuit 133 is turned on, so that the second push-pull circuit 134 charges the energy storage element L from the second node B through the second output terminal n2 by using the power voltage VCC provided by the power supply. The second switching circuit 133 can increase the driving capability of the second push-pull circuit 134.
Specifically, the first push-pull circuit 132 includes: a second switch Q2 and a third switch Q3; the second switch Q2 includes a first path end, a second path end and a control end, the control end of the second switch Q2 is connected to the first input end m1, the first path end of the second switch Q2 is connected to a power supply to receive the power supply voltage VCC, and the second path end of the second switch Q2 is connected to the first output end n1. The third switch Q3 comprises a first channel end, a second channel end and a control end, the control end of the third switch Q3 is connected with the second input end m2, and the second input end m2 receives a second level signal when the first input end m1 receives the first level signal; the first path end of the third switch Q3 is connected to the first output end n1, and the second path end of the third switch Q3 is grounded to GND. Specifically, when the first input terminal m1 receives the first level signal, the first switch Q1 is turned on in response to the first level signal, and the second switch Q2 is turned on; at this time, the second input terminal m2 receives the second level signal, and the third switch Q3 is turned off. The power supply voltage VCC charges the energy storage element L from the first output terminal n1 through the turned-on second switch Q2, and the current flows from the first node a to the second node B as indicated by an arrow H1.
Specifically, the first switching circuit 131 includes: the first switch Q1, the first switch Q1 includes a first path end, a second path end and a control end, the control end of the first switch Q1 is connected to the first input end m1, when the second input end m2 receives the second level signal, the first input end m1 receives the first level signal, or when the second input end m2 receives the first level signal, the first input end m1 receives the second level signal. The first path terminal of the first switch Q1 is connected to a power supply to receive a power supply voltage VCC, and the second path terminal of the first switch Q1 is grounded to GND. In an embodiment, the circuit further includes a first resistor R1, a first end of the first resistor R1 is connected to the power supply, and a second end of the first resistor R1 is connected to a first path end of the first switch Q1. Specifically, when the first input terminal m1 receives the first level signal, the first switch Q1 is turned on in response to the first level signal; when the first input terminal m1 receives the second level signal, the first switch Q1 is turned off.
Specifically, the second push-pull circuit 134 includes: fifth switch Q5 and sixth switch Q6. The fifth switch Q5 includes a first path end, a second path end and a control end, the control end of the fifth switch Q5 is connected to the second input end m2, the first path end of the fifth switch Q5 is connected to a power supply to receive the power supply voltage VCC, and the second path end of the fifth switch Q5 is connected to the second output end n2. The sixth switch Q6 includes a first path end, a second path end, and a control end, where the control end of the sixth switch Q6 is connected to the first input end m1, and the first input end m1 receives the second level signal when the second input end m2 receives the first level signal; the first path terminal of the sixth switch Q6 is connected to the second output terminal n2, and the second path terminal of the sixth switch Q6 is grounded GND. Specifically, when the second input terminal m2 receives the first level signal, the fourth switch Q4 is turned on in response to the first level signal, and the fifth switch Q5 is turned on; at this time, the first input terminal m1 receives the second level signal, and the sixth switch Q6 is turned off. The power supply voltage VCC charges the energy storage element L from the second output terminal n2 through the turned-on fifth switch Q5, and the current flows from the second node B to the first node a as indicated by an arrow H2.
Specifically, the second switching circuit 133 includes: the fourth switch Q4, the fourth switch Q4 includes a first path end, a second path end and a control end, the control end of the fourth switch Q4 is connected to the second input end m2, when the first input end m1 receives the second level signal, the second input end m2 receives the first level signal, or when the first input end m1 receives the first level signal, the second input end m2 receives the second level signal. The first path terminal of the fourth switch Q4 is connected to a power supply to receive the power supply voltage VCC, and the second path terminal of the fourth switch Q4 is grounded to GND. In an embodiment, the circuit further includes a second resistor R2, a first end of the second resistor R2 is connected to the power supply, and a second end of the second resistor R2 is connected to the first path end of the fourth switch Q4. Specifically, when the second input terminal m2 receives the first level signal, the fourth switch Q4 is turned on in response to the first level signal; when the second input terminal m2 receives the second level signal, the fourth switch Q4 is turned off.
Wherein the first level signal and the second level signal are time-division switched to form a PWM signal. The first level signal cannot be high/low at the same time. In one embodiment, the first level signal and the second level signal are complementary PWM waveforms directly output, or in another embodiment, the first level signal and the second level signal are complementary PWM waveforms maintained after being controlled by other devices, as shown in fig. 4, where PWM1 is a PWM signal applied to the first input terminal m1, and PWM2 is a PWM signal applied to the second input terminal m2, and the PWM signals respectively include a first level signal F1 and a second level signal F2 that are switched in a time-sharing manner.
Wherein, atomizing drive circuit still includes: and a capacitor C connected in parallel with the atomizing plate 11. Specifically, the capacitor C includes a first end and a second end, the first end of the capacitor C is connected to the first end of the atomizing sheet 11, and the second end of the capacitor C is connected to the second end of the atomizing sheet 11.
In one embodiment, the first level signal is a high level signal and the second level signal is a low level signal.
The first switch Q1, the second switch Q2, the sixth switch Q6, the third switch Q3, the fourth switch Q4, and the fifth switch Q5 may be MOS transistors shown in the figure, or may be transistors, which are not limited herein.
Specifically, during the first period, when the first input terminal m1 receives the first level signal, the second input terminal m2 receives the second level signal. At this time, the first, second and sixth switches Q1, Q2 and Q6 are turned on, and the third, fourth and fifth switches Q3, Q4 and Q5 are turned off. The power supply voltage VCC is output through the first output terminal n1 by the second switch Q2, and charges the energy storage element L from the first node a of the energy storage element L, and the charging current flows from left to right as indicated by an arrow H1 in the figure.
In the first period, when the second input terminal m2 receives the first level signal, the first input terminal m1 receives the second level signal. At this time, the first, second and sixth switches Q1, Q2 and Q6 are turned off, and the third, fourth and fifth switches Q3, Q4 and Q5 are turned on. The power supply voltage VCC is output through the second output terminal n2 by the fifth switch Q5, and charges the energy storage element L from the second node B of the energy storage element L, and the charging current flows from right to left as indicated by an arrow H2 in the figure.
Since the energy storage element L is an inductance, according to the principle that the current of the inductance cannot be suddenly changed, but the voltage can be suddenly changed, when the level signals received by the first input terminal m1 and the second input terminal m2 are converted, the current of the energy storage element L needs to be reduced first and then reversely increased, and the voltage waveforms at the first node a and the second node B of the energy storage element L are shown in fig. 5, wherein the solid line is the voltage waveform at the point B, and the dotted line is the voltage waveform at the point a.
Specifically, during the first period t1, the first input terminal m1 receives the first level signal, and the second input terminal m2 receives the second level signal. At this time, the first node a of the energy storage element L charges the energy storage element L, and the current flows from left to right as shown by H1 in fig. 3, so that the voltage of the second node B of the energy storage element L increases gradually, and as shown by the solid line 1 in fig. 5, the discharge starts after the voltage of the second node B increases to the highest point, and the voltage at the second node B starts to decrease.
At the second time period t2, the first input terminal m1 receives the second level signal, and the second input terminal m2 receives the first level signal. At this time, the voltage of the energy storage element L suddenly changes, and the voltage of the second node B increases due to the reverse connection of the input voltage, thereby superimposing the input voltage, as shown by the solid line 2 in fig. 5. At this time, the energy storage element L is continuously discharged, and the current flowing through the energy storage element L continuously decreases from left to right and then starts to reverse, that is, the current flowing from right to left starts to charge until the discharge is completed.
In the third time period t3, switching is continued, the first input terminal m1 receives the first level signal, the second input terminal m2 receives the second level signal, the voltage of the second node B is gradually increased according to the principle that the voltage of the inductor can be suddenly changed, discharging is started when the voltage is increased to the highest point, and the voltage at the second node B is started to be reduced.
In the fourth period t4, switching is continued, the first input terminal m1 receives the second level signal, the second input terminal m2 receives the first level signal, the voltage of the energy storage element L suddenly changes, the voltage of the second node B is increased due to the overlapping of the input voltages due to the reverse connection of the input voltages, at this time, the energy storage element L continuously discharges, and the current flowing through the energy storage element L continuously decreases from left to right and then starts to reverse, that is, the charging starts with the current flowing from right to left until the discharging is complete.
In the above-described voltage variation waveform of the energy storage element L, the waveform of the atomizing sheet 11 is changed as shown in fig. 6. Wherein the dotted line 5 is the waveform of the point a; the solid line 6 is the waveform at point D.
The waveforms of the upper portion (point B) and the lower portion (point D) of the atomizing sheet 11 after being superimposed can be obtained by fig. 5 and 6, specifically, the waveforms of the upper portion and the lower portion of the atomizing sheet 11 after being superimposed can be obtained by subtracting the waveforms of the point D from the waveforms of the point B, as shown in fig. 7. The waveform superimposed on the upper and lower portions of the atomizing sheet 11 is a regular sine wave waveform, which can improve the atomizing efficiency.
In this embodiment, the peak voltage is lower, and not fragile atomizing piece, and can be when waiting that atomizing matrix disappears automatic peak voltage that reduces, and then protection atomizing piece 11 prevents dry combustion method damage atomizing piece 11. Specifically, when the substrate to be atomized disappears, the load voltage will increase, and the power supply voltage VCC is unchanged, the voltage at two ends of the energy storage element L will decrease, at this time, the current of the energy storage element L will decrease, the energy storage decreases, and the peak voltage decreases, thereby reducing the occurrence of dry combustion. Specifically, the load (to-be-atomized matrix) is connected in parallel to two ends of the atomizing sheet 11, because the capacitor voltage cannot be suddenly changed, the current can be suddenly changed, when the to-be-atomized matrix disappears, the voltage is unchanged, the load current gradually decreases, even disappears, at the moment, the voltage at two ends of the energy storage element L cannot be suddenly changed, the current is required to decrease, and the energy storage of the energy storage element L is decreased, so that the peak voltage is decreased. For the half-wave drive circuit, as the energy storage element is connected in series with the capacitor, the voltage of the capacitor cannot be suddenly changed, and when the matrix to be atomized disappears, the peak voltage basically has no change, and the atomizing plate is easy to be damaged by dry burning.
In the conventional full-wave driving circuit, waveforms at two ends of an atomization plate are irregular sine waves formed by splicing half waves above a coordinate axis with half waves below the coordinate axis, and dead zones can occur during splicing, so that atomization conversion efficiency is low. The atomization driving circuit disclosed by the application has the advantages that the problem that the positive half wave and the negative half wave are not connected can be avoided, and the atomization efficiency is further improved.
In the prior art, if the energy storage element cannot be charged positively and negatively, a capacitor is generally connected in series behind the energy storage element, and the capacitor is used for energy storage, charge and discharge. However, the capacitor is arranged, the peak voltage is not changed, and the dry burning phenomenon is easy to occur. The atomization driving circuit can change the power supply and the grounding terminal to perform forward charging and reverse charging, so that a capacitor does not need to be added behind an energy storage element, and the peak voltage of the scheme is reduced, so that the occurrence of dry burning can be reduced.
Referring to fig. 9, a schematic structural diagram of an embodiment of an atomization device according to the present application is shown, and specifically, the atomization device 80 includes an atomization driving circuit 81, and the atomization driving circuit 81 is the atomization driving circuit 81 described above.
The atomization device 80 has low peak voltage on the atomization sheet, is not easy to damage the atomization sheet, and can automatically reduce the peak voltage when the matrix to be atomized disappears, thereby protecting the atomization sheet and preventing dry burning from damaging the atomization sheet. Specifically, when the substrate to be atomized disappears, the load voltage will increase, and the power supply voltage VCC is unchanged, the voltage at two ends of the energy storage element L will decrease, at this time, the current of the energy storage element L will decrease, the energy storage decreases, and the peak voltage decreases, thereby reducing the occurrence of dry combustion.
The foregoing is only the embodiments of the present application, and therefore, the patent scope of the application is not limited thereto, and all equivalent structures or equivalent processes using the descriptions of the present application and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the application.
Claims (2)
1. An atomizing drive circuit, comprising:
the atomizing sheet is used for atomizing the substrate to be atomized;
the energy storage circuit is connected with the atomizing sheet and used for storing electric energy to drive the atomizing sheet; the energy storage circuit comprises an energy storage element, and the energy storage element is an inductor;
a direction switching circuit connected to the tank circuit, the direction switching circuit for charging the tank circuit from a first direction with a supply voltage in a first charging manner during a first period of time and for charging the tank circuit from a second direction with the supply voltage in a second charging manner during a second period of time; wherein the first direction is opposite to the second direction;
the capacitor is connected with the atomizing sheet in parallel;
the direction switching circuit comprises a first input end, a second input end, a first output end and a second output end; the atomizing sheet is connected with the direction switching circuit in parallel through the first output end and the second output end; when the first input end receives a first level signal, the direction switching circuit charges the energy storage circuit by utilizing the power supply voltage in the first time period through a first charging path; when the second input end receives the first level signal, the direction switching circuit charges the energy storage circuit by using the power supply voltage in the second time period through a second charging path; the energy storage element is connected with the atomizing sheet in series and is connected with the first output end;
the first charging path includes:
the first push-pull circuit is connected with a power supply and the first output end; when the first input end receives the first level signal, the first push-pull circuit charges the energy storage element from a first node of the energy storage element through the first output end by utilizing the power supply voltage provided by the power supply; the first push-pull circuit comprises a second switch and a third switch, the second switch comprises a first passage end, a second passage end and a control end, the control end of the second switch is connected with the first input end, the first passage end of the second switch is connected with the power supply, and the second passage end of the second switch is connected with the first output end; the third switch comprises a first passage end, a second passage end and a control end, wherein the control end of the third switch is connected with the second input end, the first passage end of the third switch is connected with the first output end, and the second passage end of the third switch is grounded;
the first switch circuit is connected with the first input end and the first push-pull circuit; when the first input end receives the first level signal, the first switch circuit is conducted so as to increase the driving capability of the first push-pull circuit; the first switch circuit comprises a first switch, the first switch comprises a first channel end, a second channel end and a control end, the control end of the first switch is connected with the first input end to receive the first level signal, the first channel end of the first switch is connected with the power supply and the control end of the second switch, and the second channel end of the first switch is grounded;
the second charging path includes:
the second push-pull circuit is connected with a power supply and the second output end; when the second input end receives the first level signal, the second push-pull circuit charges the energy storage element from a second node of the energy storage element through the second output end by utilizing the power supply voltage provided by the power supply; the second push-pull circuit comprises a fifth switch and a sixth switch, the fifth switch comprises a first passage end, a second passage end and a control end, the control end of the fifth switch is connected with the second input end, the first passage end of the fifth switch is connected with the power supply, and the second passage end of the fifth switch is connected with the second output end; the sixth switch comprises a first passage end, a second passage end and a control end, wherein the control end of the sixth switch is connected with the first input end, the first passage end of the sixth switch is connected with the second output end, and the second passage end of the sixth switch is grounded;
the second switch circuit is connected with the second input end and the second push-pull circuit; when the second input end receives the first level signal, the second switch circuit is conducted so as to increase the driving capability of the second push-pull circuit; the second switch circuit comprises a fourth switch, the fourth switch comprises a first channel end, a second channel end and a control end, the control end of the fourth switch is connected with the second input end to receive the first level signal, the first channel end of the fourth switch is connected with the power supply, and the control end of the fifth switch is grounded.
2. An atomizing device comprising the atomizing drive circuit according to claim 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011454827.1A CN114618735B (en) | 2020-12-10 | 2020-12-10 | Atomization driving circuit and atomization device |
| PCT/CN2021/118024 WO2022121418A1 (en) | 2020-12-10 | 2021-09-13 | Atomization driving circuit and atomization apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011454827.1A CN114618735B (en) | 2020-12-10 | 2020-12-10 | Atomization driving circuit and atomization device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114618735A CN114618735A (en) | 2022-06-14 |
| CN114618735B true CN114618735B (en) | 2023-11-10 |
Family
ID=81896211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011454827.1A Active CN114618735B (en) | 2020-12-10 | 2020-12-10 | Atomization driving circuit and atomization device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114618735B (en) |
| WO (1) | WO2022121418A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115213042A (en) * | 2022-08-05 | 2022-10-21 | 北京吾星球科技有限公司 | Lifting electric atomizing nozzle spraying hardware system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964601A (en) * | 2010-09-19 | 2011-02-02 | 河南科技大学 | Symmetrical PWM control signal generator with low-frequency control |
| CN102694482A (en) * | 2012-01-12 | 2012-09-26 | 河南科技大学 | Ultrasonic motor control circuit |
| CN105011375A (en) * | 2015-07-21 | 2015-11-04 | 昆山祥维电子科技有限公司 | Electronic cigarette capable of achieving automatic control of atomization wire resistance value |
| TWM531332U (en) * | 2016-05-20 | 2016-11-01 | Tcera Co Ltd | Atomizer system with analogue real-time control |
| CN106972779A (en) * | 2017-05-18 | 2017-07-21 | 南京鱼跃软件技术有限公司 | One kind is using monolithic processor controlled piezoelectric ceramics spraying piece driving circuit |
| EP3415019A1 (en) * | 2017-06-14 | 2018-12-19 | Microjet Technology Co., Ltd | Driving module for electronic cigarette |
| CN209153368U (en) * | 2018-02-26 | 2019-07-26 | 佛山市顺德区北滘镇科锐实业有限公司 | A kind of band is sprayed ultrasonic wave shovel skin skin beautifying apparatus |
| CN209169994U (en) * | 2018-12-04 | 2019-07-26 | 江门市蓬江区金赢科技有限公司 | A kind of Multi-functional water fog fan circuit |
| CN209732613U (en) * | 2019-03-15 | 2019-12-06 | 湖南中烟工业有限责任公司 | Ultrasonic atomization piece oscillation circuit and ultrasonic electronic cigarette |
| CN211070539U (en) * | 2019-11-27 | 2020-07-24 | 东莞市显鹏实业有限公司 | Positive and negative connection control circuit and positive and negative connection control instrument |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5848225B2 (en) * | 1979-01-09 | 1983-10-27 | オムロン株式会社 | Atomization amount control method of ultrasonic liquid atomization device |
| CN206227717U (en) * | 2016-09-26 | 2017-06-09 | 深圳市合元科技有限公司 | A kind of ultrasonic atomizatio control system and electronic smoking set |
| CN206240712U (en) * | 2016-12-09 | 2017-06-13 | 惠州市锦好电子有限公司 | A kind of ultrasonic ultrasonic delay line memory |
| CN108720081A (en) * | 2017-04-13 | 2018-11-02 | 湖南中烟工业有限责任公司 | A kind of ultrasonic electronic cigarette circuit and implementation method |
| CN210670027U (en) * | 2019-11-26 | 2020-06-02 | 湖南中烟工业有限责任公司 | Ultrasonic atomization piece full wave drive circuit, ultrasonic wave electron cigarette |
-
2020
- 2020-12-10 CN CN202011454827.1A patent/CN114618735B/en active Active
-
2021
- 2021-09-13 WO PCT/CN2021/118024 patent/WO2022121418A1/en active Application Filing
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964601A (en) * | 2010-09-19 | 2011-02-02 | 河南科技大学 | Symmetrical PWM control signal generator with low-frequency control |
| CN102694482A (en) * | 2012-01-12 | 2012-09-26 | 河南科技大学 | Ultrasonic motor control circuit |
| CN105011375A (en) * | 2015-07-21 | 2015-11-04 | 昆山祥维电子科技有限公司 | Electronic cigarette capable of achieving automatic control of atomization wire resistance value |
| TWM531332U (en) * | 2016-05-20 | 2016-11-01 | Tcera Co Ltd | Atomizer system with analogue real-time control |
| CN106972779A (en) * | 2017-05-18 | 2017-07-21 | 南京鱼跃软件技术有限公司 | One kind is using monolithic processor controlled piezoelectric ceramics spraying piece driving circuit |
| EP3415019A1 (en) * | 2017-06-14 | 2018-12-19 | Microjet Technology Co., Ltd | Driving module for electronic cigarette |
| CN209153368U (en) * | 2018-02-26 | 2019-07-26 | 佛山市顺德区北滘镇科锐实业有限公司 | A kind of band is sprayed ultrasonic wave shovel skin skin beautifying apparatus |
| CN209169994U (en) * | 2018-12-04 | 2019-07-26 | 江门市蓬江区金赢科技有限公司 | A kind of Multi-functional water fog fan circuit |
| CN209732613U (en) * | 2019-03-15 | 2019-12-06 | 湖南中烟工业有限责任公司 | Ultrasonic atomization piece oscillation circuit and ultrasonic electronic cigarette |
| CN211070539U (en) * | 2019-11-27 | 2020-07-24 | 东莞市显鹏实业有限公司 | Positive and negative connection control circuit and positive and negative connection control instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114618735A (en) | 2022-06-14 |
| WO2022121418A1 (en) | 2022-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7605638B2 (en) | Semiconductor integrated circuit including charge pump circuit | |
| US5914591A (en) | Switching power supply | |
| US20050099164A1 (en) | Pfc-pwm controller having interleaved switching | |
| JP2010135050A5 (en) | ||
| CN103532350A (en) | Control circuit with fast dynamic response for power converters | |
| CN114618735B (en) | Atomization driving circuit and atomization device | |
| US5742142A (en) | Low radiated emission motor speed control with PWM regulator | |
| US5757632A (en) | Switched capacitance voltage multiplier | |
| JP3250979B2 (en) | Switching power supply | |
| JPH025338B2 (en) | ||
| JP2016539617A (en) | Flyback type switching power supply circuit and backlight driving device using the same | |
| CN111082781A (en) | Ultrasonic front-end circuit and ophthalmic B-mode ultrasonic system | |
| CN210927580U (en) | Ultrasonic front-end circuit and ophthalmic B-mode ultrasonic system | |
| CN115067573A (en) | Electronic atomization device | |
| JPH0722260B2 (en) | Base drive circuit for high power switching transistors | |
| JP3469455B2 (en) | Switching power supply | |
| CN211510564U (en) | Ultrasonic atomization piece working circuit and ultrasonic electronic cigarette | |
| JP3697678B2 (en) | V / F conversion circuit | |
| JPH084637A (en) | Ignition device for internal combustion engine | |
| CN114024528A (en) | Square wave generator circuit | |
| JPS61274814A (en) | Electric discharge machining power supply | |
| CN113162386A (en) | Reference voltage soft start circuit suitable for boost conversion circuit | |
| CN108566126B (en) | Motor control system based on OR gate | |
| TWI790873B (en) | Secondary side protection detection circuit of power converter | |
| JP2001335928A (en) | Sputtering apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |