TWM531332U - Atomizer system with analogue real-time control - Google Patents

Description

Analogous real-time controlled nebulizer system

This creation belongs to a nebulizer system, especially an atomizer system for analog real-time control of the operation of the atomizer.

At present, the atomizer can be divided into an underwater atomizer or a microporous atomizer. The difference lies in the amount of spray. The underwater atomizer is often used in landscaping, bonsai, crafts, bathtubs due to the amount of spray. In the fog machine and other products.

Microporous nebulizers are often used in applications such as humidifiers, aromatherapy devices, beauty machines, disinfectors, water oxygenators, air purifiers, and medical drugs due to the precise amount of spray. The microporous atomizer uses piezoelectric ceramics to vibrate the microporous mesh at high speed, and the liquid is pushed out through the tiny holes on the mesh sheet to achieve atomization.

In the case of a medical drug sprayer, the prior art method generates a driving signal through a digital circuit to drive the atomizing piece to vibrate, so that the liquid in the container passes through a hole in the center of the atomizing piece, thereby vaporizing or atomizing the liquid into minute droplets. In order to enable the patient to be treated by inhalation, in addition to the use of inhaled administration, this atomization method can also be used as a skin care treatment.

Although the overall cost of the digital circuit is low, there are still three kinds of defects in the entire control circuit. One of them: when the digital circuit is turned on, it takes a few seconds to find the active harmonic. The frequency of the vibration, because the user who needs to use the atomizing sheet is mostly a patient with difficulty in breathing, the user cannot immediately relax through the atomizing sheet, which may cause inconvenience to the user.

Secondly, the digital circuit is in operation. Once the atomization piece is displaced due to the vibration displacement of the body and the amount of the drug changes, the resonance frequency of the atomizing piece is shifted, which cannot automatically adjust and retrieve the resonant frequency of the correct operation, which may cause the sprayed The amount is reduced to change the amount administered.

Thirdly, because the digital circuit generates a driving frequency signal for providing the atomizing piece to be driven by the digital scanning frequency, the digital scanning frequency has a problem of poor resolution, which may cause a large amount of atomization spray during production. The amount is not the same.

In addition, it is conventional to provide a driving signal to the atomizing sheet to vibrate through the single-ended driving circuit, and the signal provided by the single-end driving circuit causes the atomizing sheet to act in only one direction, which not only reduces the atomizing sheet. The service life also causes electrolysis of the electrodes of the atomized sheet to produce unnecessary oxides.

Furthermore, it is conventionally impossible to obtain an accurate amplitude of the atomizing sheet when the atomizing sheet is actuated, and the driving voltage may be too large or too small, and the atomizing sheet may be easily damaged and the amount of the spray may not be controlled.

As mentioned above, the conventional atomizer still has a digital sweep, or a single-ended drive, or a defect such as a deformation amount cannot be accurately obtained. Therefore, it is conventionally known that the control circuit for vibrating the atomizing sheet is still necessary for improvement.

The purpose of the present invention is to provide a zero-current detecting circuit capable of enabling the atomizing piece to be activated without waiting for a few seconds of sweeping during startup, and easily adjusting the frequency after shifting in the working frequency, and the analog circuit can search for the resonant frequency to enable resolution. Better to eliminate the possibility of misjudging the resonant frequency probability, full bridge The drive circuit can improve the uneven stress efficiency, and the analog real-time control atomizer system with the feedback circuit can accurately control the deformation of the atomizer.

In accordance with the foregoing objects, the present application proposes an analog real-time controlled nebulizer system that includes an atomizing sheet, a control unit, and a resonating unit. The atomizer is equivalent to a capacitor. The control unit includes a driving circuit, a pulse width modulation control circuit, and a zero current detecting circuit electrically connected to the driving circuit and the pulse width modulation control circuit. The driving circuit provides at least one driving signal, and the driving signal provides a positive direction voltage or a negative direction voltage. The resonant unit includes an inductor electrically connected to the atomizing sheet, the driving circuit and the zero current detecting circuit, and an analog resonant circuit is formed between the inductor and the capacitor. The analog resonant circuit generates an oscillating signal according to the driving signal, and the oscillating signal provides vibration of the atomizing sheet.

Further, the driving circuit is configured as a full bridge driving circuit, and the full bridge driving circuit includes a right driving bridge circuit electrically connected to the analog resonant circuit and the zero current detecting circuit, and an electrical connection of the analog resonance The circuit and the left drive bridge circuit of the zero current detection circuit. An output signal of the zero current detecting circuit passes through the pulse width modulation control circuit, the right driving bridge circuit and the left driving bridge circuit to generate a full bridge type driving signal, and the analog resonant circuit is driven according to a full bridge type The signal produces the oscillating signal of the sine wave.

Further, the right driving bridge circuit includes a right driving component electrically connected to the zero current detecting circuit, a first right field effect transistor electrically connected to the right driving component output end and the analog resonant circuit, and a The right driving element output is electrically connected to the second right field effect transistor of the analog resonant circuit. The left driving bridge circuit includes a left driving component electrically connected to the zero current detecting circuit, and a first left field effect transistor electrically connected to the output end of the left driving component and the analog resonant circuit. And a second left field effect transistor electrically connected to the output of the left driving component and the analog resonant circuit.

Further, the atomizing sheet comprises a first electrode on one side of the atomizing sheet and a second electrode on the other side of the atomizing sheet. The first electrode is divided into at least one first block and a second block.

Further, the control unit includes an amplitude feedback circuit electrically connected to the first block or simultaneously connecting the first block and the second block.

Further, the control unit includes a voltage feedback circuit electrically connected to the second block. Or the control unit includes a voltage feedback circuit electrically connected to the second electrode.

In accordance with the foregoing objects, the present application proposes another type of nebulizer system that is more than real-time controlled, including an atomizing sheet, a control unit, and a resonating unit. The atomizer is equivalent to a capacitor. The control unit includes a full bridge driving circuit and a pulse width modulation control circuit electrically connected to the full bridge driving circuit. The full bridge driving circuit includes a right driving bridge circuit and a left driving bridge circuit. The full bridge driving circuit provides at least one full bridge driving signal, and the driving signal provides a positive direction voltage or a negative direction voltage. The resonant unit includes an inductor electrically connected to the atomizing sheet, the right driving bridge circuit and the left driving bridge circuit, and an analog resonant circuit is formed between the inductor and the capacitor. The analog resonant circuit generates a sinusoidal oscillation signal according to the driving signal, and the oscillation signal provides vibration of the atomizing sheet.

Further, the right driving bridge circuit includes a right driving component, a first right field effect transistor electrically connected to the right driving component output end and the analog resonant circuit, and an electrical connection terminal of the right driving component The second right field effect transistor of the analog circuit. The left driving bridge circuit includes a left driving component, an electrical connection of the left driving component output end and the analog resonant circuit a first left field effect transistor, and a second left field effect transistor electrically coupled to the left drive element output and the analog resonant circuit.

In accordance with the foregoing objects, the present invention further proposes another type of nebulizer system that is more than real-time controlled, comprising an atomizing sheet, a control unit, and a resonating unit. The atomizing sheet is equivalent to a capacitor; the atomizing sheet comprises a first electrode on one side of the atomizing sheet and a second electrode on the other side of the atomizing sheet. The first electrode is divided into at least one first block and a second block. The control unit includes a driving circuit, an amplitude feedback circuit electrically connected to the first block or the first block and the second block, and an electrical connection between the driving circuit and the amplitude feedback The pulse width modulation control circuit of the circuit. The driving circuit provides at least one driving signal, and the driving signal provides a positive direction voltage or a negative direction voltage. The resonant unit includes an inductor electrically connected to the atomizing sheet and the driving circuit, and an analog resonant circuit is formed between the inductor and the capacitor. The analog resonant circuit generates an oscillating signal according to the driving signal, and the oscillating signal provides vibration of the atomizing sheet.

Further, the control unit includes a voltage feedback circuit electrically connected to the second block. Or the control unit includes a voltage feedback circuit electrically connected to the second electrode.

The characteristics of this creation are:

1. The present invention uses the zero current detecting circuit to instantly detect the resonant frequency between the atomizing sheet and the inductor when the power is turned on, and immediately activate the atomizing sheet to improve the conventional digital circuit, which takes several seconds. Look for the absence of the resonant frequency of the action.

2. The zero current detection circuit detects the resonance frequency in real time. Once the resonance frequency offset is adjusted, it will be adjusted immediately. This is different from the conventional digital circuit. The digital sweep cannot automatically adjust to find the missing resonance frequency.

3. In this case, the method of searching for the resonant frequency by the zero current detecting circuit can better the resolution, eliminate the probability of misjudge the resonant frequency, and make the amount of the atomizing sheet spray uniform, so as to overcome the conventional digital circuit digital sweeping frequency meeting. There are problems with poor resolution.

4. The present invention uses a full-bridge driver formed by the right drive bridge circuit and the left drive bridge circuit, which does not cause the atomizer to operate in only one direction and has uneven stress, thereby reducing the possibility of single-ended driving. The resulting stress is uneven, increasing the life of the atomizer.

5. The full-bridge type of driving signal can provide the sinusoidal oscillating signal to the atomizing sheet, and the sine wave driving can greatly reduce the electrolysis effect of the metal electrode of the atomizing sheet ceramic.

6. The creation uses the amplitude feedback circuit to detect the deformation amount of the atomization piece to achieve the driving of the constant power, so that the vibration amplitude of the atomization piece is uniform. The amplitude feedback circuit can actually reflect the vibration of the atomized sheet, and contributes to the consistency of the spray amount in mass production and the residual amount of different medicaments.

7. The present invention uses the voltage feedback circuit to monitor the driving voltage of the atomizing sheet to accurately grasp whether the atomizing sheet is faulty or connected to the resonant unit.

1‧‧‧ analog real-time controlled nebulizer system

2‧‧‧Atomizer

20‧‧‧ Capacitance

21‧‧‧First electrode

210‧‧‧First block

211‧‧‧Second block

22‧‧‧second electrode

23‧‧‧ holes

3‧‧‧Control unit

30‧‧‧Right drive bridge circuit

300‧‧‧Right drive components

301‧‧‧First right field effect transistor

302‧‧‧Second right field effect transistor

31‧‧‧Left drive bridge circuit

310‧‧‧Left drive components

311‧‧‧First left field effect transistor

312‧‧‧Second left field effect transistor

32‧‧‧zero current detection circuit

33‧‧‧Amplitude feedback circuit

34‧‧‧Voltage feedback circuit

35‧‧‧ Pulse width modulation control circuit

4‧‧‧Resonance unit

40‧‧‧Inductance

5‧‧‧ analog resonant circuit

6‧‧‧Power terminal

7‧‧‧ Grounding terminal

Figure 1: Block diagram of the creation.

Figure 2-1: A perspective view of the atomized sheet of the present invention.

Figure 2-2: A cross-sectional view of the atomized sheet of the present invention.

Fig. 3 is a circuit diagram of the atomization piece, the resonance unit, the right drive bridge circuit and the left drive bridge circuit.

In the following, together with the attached drawings, it is more convenient to understand how the structure of the creation is combined and used. It is easier to understand the purpose, technical content, characteristics and effects of the creation.

Please refer to Fig. 1 to Fig. 3, which is an analogous real-time control atomizer system 1 proposed in the present invention. In this case, the analog real-time controlled atomizer system 1 can be applied not only to medical sprayers, but also to In other products such as humidifiers, aromatherapy, beauty machines, disinfectors, water oxygen machines and air cleaners. In the embodiment of the present invention, the application to the medical sprayer is exemplified, but it is not intended to limit the creation.

The atomizer system 1 for real-time control includes an atomizing sheet 2, a control unit 3, and a resonance unit 4. The atomizing sheet 2 is equivalent to a capacitor 20. In the embodiment of the present invention, the atomizing sheet 2 is applied to a piezoelectric ceramic atomizing sheet. The atomizing sheet 2 includes a first electrode 21 on one side of the atomizing sheet 2 and a second electrode 22 on the other side of the atomizing sheet 2. The first electrode 21 is divided into at least one first block 210 and a second block 211.

The control unit 3 includes a driving circuit (not shown), a pulse width modulation (PWM) control circuit 35, and a zero current electrically connected to the driving circuit and the pulse width modulation control circuit 35. Detection circuit 32. The driving circuit provides at least one driving signal, and the driving signal provides a positive direction voltage or a negative direction voltage. In other embodiments, a plurality of driving signals that are alternately arranged in polarity are arranged to cause the atomizing sheet 2 to operate. The resonant unit 4 includes an inductor 40 electrically connected to the atomizing sheet 2, the driving circuit and the zero current detecting circuit 32. The inductor 40 forms an analog resonant circuit 5 with the capacitor 20. The analog circuit 5 generates an oscillating signal (not shown) according to the driving signal, and the oscillating signal provides vibration of the atomizing sheet 2.

Continuing with the description, the zero current detecting circuit 32 can instantly detect the resonant frequency between the atomizing sheet 2 and the inductor 40 when the power is turned on, and immediately activate the atomizing sheet 2 to improve the conventional digital position. The circuit takes a few seconds to find the absence of the resonant frequency of the action. More specifically, when the analog real-time controlled nebulizer system 1 is powered on, the driving circuit provides the driving signal to the analog resonant circuit 5 to cause the analog resonant circuit 5 to oscillate the oscillating signal, and thereafter the zero current detecting The circuit 32 immediately detects the resonant frequency between the atomizing sheet 2 and the inductor 40 to provide vibration of the atomizing sheet 2. In addition, the zero current detecting circuit 32 detects whether the resonant frequency is offset in real time. When the atomizing sheet 2 is displaced due to the vibration of the body and the amount of the drug, the resonant frequency of the atomizing sheet 2 is shifted. Immediate adjustment, which is different from the conventional digital circuit digital sweep, and cannot automatically adjust to find the missing of the correct resonant frequency. Furthermore, in the present case, the zero current detecting circuit 32 searches for the resonant frequency to improve the resolution, and the probability of erroneously determining the resonant frequency can be eliminated, and the amount of the atomized sheet 2 sprayed is uniform to overcome the conventional digital circuit. Digital sweeps have problems with poor resolution.

In other words, the zero current detecting circuit 32 resets the pulse width modulation control circuit 35 at an appropriate time, and the output terminal of the pulse width modulation control circuit 35 gives an appropriate driving signal to the right driving bridge circuit. The left drive bridge circuit 31 and the left drive bridge circuit 31 are used to drive the resonant unit 4, thereby eliminating many of the drawbacks of the conventional digital sweep band.

Referring to FIGS. 1 and 3, further, in order to prevent the atomization sheet 2 from being actuated in a single direction and having uneven stress, the driving circuit is further configured as a full-bridge driving circuit. The full bridge driving circuit includes a right driving bridge circuit 30 electrically connected to the analog resonant circuit 5 and the zero current detecting circuit 32, and an electrical connection between the analog resonant circuit 5 and the zero current detecting circuit 32. The left drive bridge circuit 31. The output signal of the zero current detecting circuit 32 passes through the pulse width modulation control circuit 35, the right driving bridge circuit 30 and the left driving bridge circuit 31 to generate a full bridge type The driving signal, the analog resonant circuit 5 generates the sinusoidal oscillating signal according to the full-bridge type of driving signal.

Since the sine wave contains a positive half-wave signal and a negative half-wave signal, the positive and negative directions are balanced, the positive half-wave signal enables the atomizing sheet 2 to move in the positive direction, and the negative half-wave signal enables the atomizing sheet 2 to be reversed. Actuation, the atomizing sheet 2 does not act in only a single direction and has an uneven stress, thereby reducing stress unevenness which may be caused by single-end driving, and increasing the service life of the atomizing sheet 2. In addition, the driving signal of the sine wave can also greatly reduce the electrolysis effect of the metal electrode of the ceramic of the atomizing sheet 2.

The right-hand drive circuit 30 includes a right-hand drive component 300 electrically connected to the output of the pulse width modulation control circuit 35 and the zero-current detecting circuit 32, and an output of the right drive component 300. a first right field effect transistor (MOSFET) 301 of the analog circuit 5, and an electrical connection between the output end of the right driving element 300 and the second right of the analog resonant circuit 5 Field effect transistor 302.

The gate of the first right field effect transistor 301 is electrically connected to the output end of the right driving component 300, and the source of the first right field effect transistor 301 is electrically connected to the analog resonant circuit. 5. The drain of the first right field effect transistor 301 is electrically connected to a power terminal 6. The gate of the second right field effect transistor 302 is electrically connected to the output end of the right driving component 300. The source terminal of the second right field effect transistor 302 is electrically connected to a grounding terminal 7. The second right field effect transistor The 汲 of the crystal 302 is electrically connected to the source terminal of the analog resonant circuit 5 and the first right field effect transistor 301.

The left driving bridge circuit 31 includes a left driving component 310 electrically connected to the output of the pulse width modulation control circuit 35 and the zero current detecting circuit 32, and an electrical connection between the output end of the left driving component 310 and the analog resonance. The first left field effect transistor 311 of the circuit 5 and the second left field effect transistor 312 electrically connected to the output end of the left driving element 310 and the analog resonant circuit 5.

The gate terminal of the first left field effect transistor 311 is electrically connected to the output end of the left driving component 310, and the source terminal of the first left field effect transistor 311 is electrically connected to the analog resonant circuit 5, the first left The 汲 terminal of the field effect transistor 311 is electrically connected to the power terminal 6. The gate of the second left field effect transistor 312 is electrically connected to the output end of the left driving component 310. The source terminal of the second left field effect transistor 312 is electrically connected to the grounding terminal 7. The second left field effect transistor The 汲 of the crystal 312 is electrically connected to the source terminal of the analog resonant circuit 5 and the first left field effect transistor 311.

As described above, the right drive bridge circuit 30 and the left drive bridge circuit 31 receive the signal of the pulse width modulation control circuit 35, and output the positive and negative drive voltages of the same width at an appropriate time. In the loop of the sheet 2 and the resonant unit 4, a resonance voltage and a current are formed to drive the atomizing sheet 2. The resonant current flows through the first right field effect transistor 301, the second right field effect transistor 302, the first left field effect transistor 311, and the second left field effect transistor 312 to form an on-resistance. Weak voltage. The zero current detecting circuit 32 detects the weak voltage, and sends a signal to the pulse width modulation control circuit 35 at an appropriate time to achieve the purpose of automatic frequency chasing.

Please refer to FIG. 1 to FIG. 2-2. In the embodiment of the present invention, the control unit 3 further includes an electrical connection between the first block 210 or the first block 210 and the second. The amplitude feedback circuit 33 of the block 211 and a voltage feedback circuit 34 electrically connected to the second block 211 or the second electrode 22.

The present invention uses the amplitude feedback circuit 33 to detect the amount of deformation of the atomizing sheet 2 to achieve constant power driving, so that the amplitude of the vibration of the atomizing sheet 2 is uniform to stabilize the amount of sprayed medicine. The amplitude feedback circuit 33 can actually reflect the amplitude of the atomizing sheet 2, and contributes to the consistency of the spray amount at the time of mass production and at the time of different drug residues. In addition, in the embodiment of the present invention, the first block 210 is Set to two, the combination of the two first blocks 210 is a balanced feedback, and one of the first blocks 210 is an unbalanced feedback, and the actual application can be one or two of the first blocks 210. .

The present invention uses the voltage feedback circuit 34 to monitor the driving voltage of the atomizing sheet 2 to accurately grasp whether the atomizing sheet 2 is faulty, or whether it is connected to the analog resonant circuit 5 of the resonant unit 4, or the syrup has been used. Finish. For example, when the driving voltage is seriously insufficient, it can be considered that the atomizing sheet 2 is faulty or the atomizing sheet 2 is not connected to the analog resonant circuit 5. If the driving voltage is too high, the potion is considered to have been used up. In the present case, the voltage feedback circuit 34 with amplitude feedback can detect that the atomization sheet 2 has insufficient spray amount due to installation and connection failure, and can improve the consistency of the spray amount in mass production. Even the voltage feedback circuit 34 can detect the waterless state, preventing the atomized sheet 2 from being undocked and ruptured. In addition, in another embodiment, the voltage feedback circuit 34 can be electrically connected to the second block 211, and the voltage feedback circuit 34 can be electrically connected to the second electrode 22, which can also be used for detecting It is measured whether the atomizing sheet 2 is defective or whether the atomizing sheet 2 is connected to the analog resonant circuit 5.

The atomizing sheet 2 is composed of a metal mesh sheet and a piezoelectric ceramic. One side electrode of the piezoelectric ceramic is bonded to the metal mesh sheet to electrically connect, and the other side electrode of the piezoelectric ceramic has at least another Dividing one or two feedback electrodes, the feedback electrode generates a feedback voltage proportional to the piezoelectric ceramic amplitude due to the positive piezoelectric effect, and the feedback voltage is sent to the amplitude feedback circuit 33, and is amplified and supplied to The pulse width modulation control circuit 35 is used to adjust the appropriate pulse width to achieve the purpose of quantitative spraying.

Please refer to FIG. 1 to FIG. 3 to describe the actuation relationship in detail. When the power is turned on, the output of the pulse width modulation control circuit 35 outputs a control signal to the right driving component 300 and the left driving component. 310, the first left field effect transistor 311 is electrically connected to the second right field effect transistor 302, and the second left field effect transistor 312 and the first right field effect transistor 301 are not turned on, thereby generating a The positive driving signal is applied to the analog resonant circuit 5 to generate a positive relationship between the inductor 40 and the capacitor 20 The oscillating signal of the chord wave provides vibration of the atomizing sheet 2, thereby causing the liquid in the container to be vaporized or atomized through the hole 23 at the center of the atomizing sheet 2. Then, the zero current detecting circuit 32 detects whether the current of the oscillating signal approaches zero. If it approaches zero, the reset signal is transmitted to the pulse width modulation control circuit 35, and the pulse width modulation control is adopted. The circuit 35 generates another control signal to the right driving component 300 and the left driving component 310 to turn on the second left field effect transistor 312 and the first right field effect transistor 301. The first left field effect transistor 311 and the second right field effect transistor 302 are not turned on, thereby generating a negative polarity of the driving signal to the analog resonant circuit 5, so that the oscillating wave of the sinusoidal wave is generated between the inductor 40 and the capacitor 20, The atomizing sheet 2 is provided to vibrate, whereby the liquid in the container is vaporized or atomized through the holes 23 in the center of the atomizing sheet 2. Then, the zero current detecting circuit 32 detects the current of the oscillating signal to approach zero. If it approaches zero, the reset signal is output to the pulse width modulation control circuit 35, and the pulse width modulation is again transmitted. The control circuit 35 controls the right drive bridge circuit 30 and the left drive bridge circuit 31 to generate a positive drive signal to the analog resonant circuit 5, and so on until there is no drug state or shutdown.

Further, the right driving bridge circuit 30 of the control unit 3, the left driving bridge circuit 31, the zero current detecting circuit 32, the amplitude feedback circuit 33, the voltage feedback circuit 34, and the pulse width modulation control The circuit 35 can be integrated into a chip (not shown) or a microprocessor (not shown), and the operation of the atomizing sheet 2 can be satisfied by the control of the wafer or the microprocessor. The characteristics of this creation.

In addition, in the embodiment of the present invention, a zero current detecting circuit 32 is used as an example. In actual operation, two groups may be used to monitor the current of the oscillation signal when the driving signal is driven by the positive and negative polarity. Or voltage.

In summary, this creation can achieve the following characteristics:

1. The present invention can instantly detect the resonant frequency between the atomizing sheet 2 and the inductor 40 through the zero current detecting circuit 32, and immediately activate the atomizing sheet 2 to improve the conventional digital circuit. It takes a few seconds to find the absence of the resonant frequency of the action.

2. The zero current detecting circuit 32 detects whether the resonant frequency is offset in real time. When the atomizing sheet 2 is displaced due to the vibration of the body and the amount of the drug, the resonant frequency of the atomizing sheet 2 is shifted. Immediate adjustment, which is different from the conventional digital circuit digital sweep, and cannot automatically adjust to find the missing of the correct resonant frequency.

3. In the present case, the zero current detecting circuit 32 searches for the resonant frequency to improve the resolution, and the probability of erroneously determining the resonant frequency can be eliminated, so that the amount of the atomized sheet 2 is consistent to overcome the conventional digital circuit digits. The sweep will have a poor resolution.

4. The present invention uses a full-bridge driver formed by the right drive axle circuit 30 and the left drive bridge circuit 31, which does not cause the atomization sheet 2 to move in only one direction and has an uneven stress, thereby reducing the single The stress caused by the end drive may be uneven, increasing the service life of the atomizing sheet 2.

5. The full-bridge type of driving signal can provide the sinusoidal oscillation signal to the atomizing sheet 2, and the sine wave driving can greatly reduce the electrolytic effect of the metal electrode of the atomizing sheet 2.

6. The present invention uses the amplitude feedback circuit 33 to detect the amount of deformation of the atomizing sheet 2 to achieve constant power driving, so that the amplitude of the vibration of the atomizing sheet 2 is uniform to stabilize the amount of spray medicine. The amplitude feedback circuit 33 can actually reflect the amplitude of the atomizing sheet 2, and contributes to the consistency of the amount of spray at the time of mass production and at the time of different drug residues.

7. The present invention uses the voltage feedback circuit 34 to monitor the driving voltage of the atomizing sheet 2 to accurately grasp whether the atomizing sheet 2 is malfunctioning, or whether it is connected to the analog circuit 5 of the resonance unit 4, or a syrup. Has run out.

The foregoing is only a preferred embodiment of the present invention, and its purpose is to enable those skilled in the art to understand the contents of the present invention and to implement it, and not to limit the scope of the present invention. All changes or modifications to the shapes, structures and features described in the scope of this application are to be included in the scope of the patent application.

1‧‧‧ analog real-time controlled nebulizer system

2‧‧‧Atomizer

3‧‧‧Control unit

30‧‧‧Right drive bridge circuit

31‧‧‧Left drive bridge circuit

32‧‧‧zero current detection circuit

33‧‧‧Amplitude feedback circuit

34‧‧‧Voltage feedback circuit

35‧‧‧ Pulse width modulation control circuit

4‧‧‧Resonance unit

Claims (10)

An analog real-time controlled atomizer system includes: an atomizing sheet, the atomizing sheet is equivalent to a capacitor; a control unit, the control unit includes a driving circuit, a pulse width modulation control circuit, and a zero current detecting circuit electrically connected to the driving circuit and the pulse width modulation control circuit; the driving circuit provides at least one driving signal, the driving signal provides a positive direction voltage or a negative direction voltage; and a resonance unit, The resonant unit includes an inductor electrically connected to the atomizing sheet, the driving circuit and the zero current detecting circuit, and an analog resonant circuit is formed between the inductor and the capacitor; the analog resonant circuit generates an oscillation signal according to the driving signal The oscillation signal provides vibration of the atomizer. The atomizer system of the analog real-time control according to claim 1, wherein the driving circuit is a full-bridge driving circuit, and the full-bridge driving circuit comprises an electrically connecting the analog resonant circuit and the zero a right drive bridge circuit of the current detecting circuit, and a left drive bridge circuit electrically connected to the analog resonant circuit and the zero current detecting circuit; the output signal of the zero current detecting circuit passes through the pulse width modulation control circuit, The right drive bridge circuit and the left drive bridge circuit generate a full bridge type of drive signal, and the analog resonant circuit generates the sinusoidal oscillation signal according to the full bridge type of the drive signal. The atomizer system of the analog real-time control according to claim 2, wherein the right drive bridge circuit comprises a right drive component electrically connected to the zero current detection circuit, and an electrical connection device a first right field effect transistor having an output end and the analog resonant circuit, and a second right field effect transistor electrically connected to the output end of the right driving element and the analog resonant circuit; the left driving bridge circuit a left driving component electrically connected to the zero current detecting circuit, a first left field effect transistor electrically connected to the left driving component output end and the analog resonant circuit, and an electrical connection connecting the left driving component output And a second left field effect transistor of the analog circuit. The atomizer system of the real-time control as described in claim 1 or 2 or 3, wherein the atomizing sheet comprises a first electrode on one side of the atomizing sheet, and a a second electrode positioned on the other side of the atomizing sheet; wherein the first electrode is divided into at least one first block and a second block. The atomizer system of the analog real-time control according to claim 4, wherein the control unit comprises an electrical connection between the first block or the amplitude of the first block and the second block Feedback circuit. The atomizer system of the analog real-time control according to claim 5, wherein the control unit comprises a voltage feedback circuit electrically connected to the second block; or the control unit comprises an electrical connection The voltage feedback circuit of the second electrode. An analog real-time controlled atomizer system includes: an atomizing sheet, the atomizing sheet is equivalent to a capacitor: a control unit, the control unit includes a full bridge driving circuit and an electrical connection a pulse width modulation control circuit of a full bridge type driving circuit, the full bridge type driving circuit includes a right driving bridge circuit and a a left-bridge drive circuit; the full-bridge drive circuit provides at least one full-bridge drive signal, the drive signal provides a positive direction voltage or a negative direction voltage; and a resonant unit including an electrical connection to the fog Forming an inductance of the right drive bridge circuit and the left drive bridge circuit, and forming an analog resonant circuit between the inductor and the capacitor; the analog resonant circuit generates a sinusoidal oscillation signal according to the driving signal, the oscillation signal The atomizer is provided for vibration. The atomizer system of analog real-time control according to claim 7, wherein the right drive bridge circuit comprises a right drive component, a first electrically connected terminal output of the right drive component and the first analog circuit a right field effect transistor, and a second right field effect transistor electrically connected to the output of the right driving component and the analog resonant circuit; the left driving bridge circuit includes a left driving component and an electrical connection of the left driving component The output is coupled to the first left field effect transistor of the analog circuit, and a second left field effect transistor electrically coupled to the output of the left drive element and the analog resonant circuit. An analog real-time controlled atomizer system comprising: an atomizing sheet, the atomizing sheet is equivalent to a capacitor; the atomizing sheet comprises a first electrode on a side of the atomizing sheet, and a second electrode on the other side of the atomizing sheet; wherein the first electrode is divided into at least a first block and a second block; a control unit, the control unit includes a driving circuit, an electric An amplitude feedback circuit electrically connecting the first block or the first block and the second block, and a pulse width modulation control circuit electrically connected to the driving circuit and the amplitude feedback circuit; The driving circuit provides at least one driving signal, and the driving signal provides a positive direction voltage or a negative direction voltage; a resonant unit, the resonant unit includes an inductor electrically connected to the atomizing sheet and the driving circuit, and an analog resonant circuit is formed between the inductor and the capacitor; the analog resonant circuit generates an oscillation signal according to the driving signal, The oscillating signal provides vibration of the atomizing sheet. The atomizer system of the analog real-time control according to claim 9, wherein the control unit comprises a voltage feedback circuit electrically connected to the second block; or the control unit comprises an electrical connection The voltage feedback circuit of the second electrode.