Streaming sterilization device and electronic equipment with same

Abstract

The invention discloses a streamer sterilization device and electronic equipment with the same. The streamer sterilization device comprises a power supply driving circuit and a plasma generator which works based on a driving power supply output by the power supply driving circuit; the power supply driving circuit comprises a booster circuit, a starting driving circuit and a starting current control circuit, the booster circuit is used for boosting and converting an input voltage and then supplying the input voltage to a positive electrode of the plasma generator, the starting driving circuit is used for generating a driving signal based on an output voltage of the booster circuit, and the starting current control circuit is arranged between a negative electrode of the plasma generator and a reference ground; and the starting current control circuit controls the conduction current of the negative electrode based on the driving signal output by the starting driving circuit. The starting current control circuit can control the conduction current of the negative electrode to change slowly in the starting stage based on the driving signal output by the time delay circuit, so that the noise in the working process of the streamer sterilization device is effectively reduced.

Description

Technical Field

[0001] The present application relates to the field of circuits, and in particular to a streamer sterilization device and an electronic device having the same. Background Art

[0002] In the related art, there is a streamer sterilization device based on dielectric barrier discharge (DBD). The principle of DBD is a non-equilibrium gas discharge in which an insulating medium is inserted into the discharge space, that is, a gas discharge phenomenon of low-temperature discharge plasma is generated in the air gap by inserting an insulating medium into the air gap between two metal electrodes. Dielectric barrier discharge is also called dielectric barrier corona discharge or silent discharge. During the discharge process, the air will be ionized to generate plasma; it can be widely used in the production of ozone, modification, grafting, surface tension improvement, cleaning and hydrophilic modification of polymer and metal films and plates.

[0003] The DBD-based streamer sterilization device can achieve the functions of air purification and / or sterilization. For example, integrating the streamer sterilization device on the air conditioner can effectively kill bacteria in the air duct and the room, and purify the air well. However, when the current streamer sterilization device breaks through the air with a large instantaneous current, the air expands due to heat, which will make noise and affect the user experience.

[0004] In the related art, in order to solve the noise problem of the streamer sterilization device, the power of the streamer sterilization device is often reduced or a sound insulation device is installed at both ends of the electrode. However, reducing the power of the streamer sterilization device will reduce the sterilization effect; installing a sound insulation device at both ends of the electrode will hinder the flow of air between the two electrodes, affecting the sterilization effect. Summary of the invention

[0005] In view of this, an embodiment of the present application provides a streamer sterilization device and an electronic device having the same, aiming to effectively reduce the noise during the operation of the streamer sterilization device.

[0006] The technical solution of the embodiment of the present application is implemented as follows:

[0007] In a first aspect, an embodiment of the present application provides a streamer sterilization device, comprising: a power drive circuit and a plasma generator operated based on a drive power output by the power drive circuit;

[0008] The power drive circuit includes: a boost circuit, a start-up drive circuit and a start-up current control circuit; the boost circuit is used to boost the input voltage and supply power to the positive electrode of the plasma generator; the start-up drive circuit is used to generate a drive signal based on the output voltage of the boost circuit; the start-up current control circuit is arranged between the negative electrode of the plasma generator and a reference ground; the start-up current control circuit controls the conduction current of the negative electrode based on the drive signal output by the start-up drive circuit.

[0009] In some embodiments, the boost circuit comprises:

[0010] A transformer, the transformer comprising a primary winding located on the primary side and a secondary winding and an auxiliary winding located on the secondary side, the secondary winding being connected to the positive electrode of the plasma generator, the auxiliary winding outputting an auxiliary signal following the secondary winding and being connected to the starting drive circuit.

[0011] In some embodiments, the power drive circuit further includes: a self-excited oscillation circuit, a square wave generator, and a switch circuit;

[0012] The self-excited oscillation circuit is used to generate an AC oscillation signal, the square wave generator is used to generate a square wave signal, the primary winding is connected to the AC oscillation signal and is grounded through the switch circuit, and the switch circuit is intermittently turned on based on the square wave signal.

[0013] In some embodiments, the streamer sterilization device further comprises:

[0014] The voltage doubler circuit is arranged between the output side of the voltage booster circuit and the positive electrode of the plasma generator.

[0015] In some embodiments, the streamer sterilization device further comprises:

[0016] The constant current control circuit is arranged between the cathode electrode of the plasma generator and the reference ground, and is used to limit the conduction current of the starting current control circuit to be constant after the saturation conduction.

[0017] In some embodiments, the startup drive circuit is an RC delay circuit.

[0018] In some embodiments, the startup current control circuit includes a switch tube that operates based on the drive signal.

[0019] In some embodiments, the constant current control circuit is a constant current source circuit based on an operational amplifier or a constant current source circuit based on a voltage regulator tube.

[0020] In some embodiments, the self-excited oscillation circuit is an LC oscillation circuit.

[0021] In some embodiments, the square wave generator is an operational amplifier based square wave generating circuit.

[0022] In some embodiments, the secondary winding and the auxiliary winding are electrically insulated from the primary winding.

[0023] In a second aspect, an embodiment of the present application provides an electronic device, including: the streamer sterilization device described in the first aspect of the embodiment of the present application.

[0024] In some embodiments, the electronic device is an air conditioner.

[0025] The technical solution provided by the embodiment of the present application is that the streamer sterilization device includes: a power drive circuit and a plasma generator that works based on the drive power output by the power drive circuit; the power drive circuit includes: a boost circuit, a start drive circuit and a start current control circuit; the boost circuit is used to boost the input voltage and then supply power to the positive electrode of the plasma generator, the start drive circuit is used to generate a drive signal based on the output voltage of the boost circuit, the start current control circuit is set between the negative electrode of the plasma generator and the reference ground, and the start current control circuit controls the conduction current of the negative electrode based on the drive signal output by the start drive circuit. In this way, the start current control circuit can control the conduction current of the negative electrode to change slowly during the start phase based on the drive signal output by the start drive circuit, effectively reducing the noise during the operation of the streamer sterilization device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the streamer sterilization device of the embodiment of the present application;

[0027] Figure 2 It is a schematic diagram of a current curve between a positive electrode and a negative electrode in the related art;

[0028] Figure 3 This is a circuit diagram of the streamer sterilization device according to an embodiment of the present application;

[0029] Figure 4 A schematic diagram of a current curve between the positive electrode and the negative electrode in an embodiment of the present application;

[0030] Figure 5 This is a circuit diagram of a streamer sterilization device in an application example of the present application. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0033] The present application embodiment provides a streamer sterilization device, such as Figure 1 As shown, the streamer sterilization device includes: a power drive circuit and a plasma generator that works based on the drive power output by the power drive circuit.

[0034] The power drive circuit can convert low-voltage input power into high-voltage square wave output, so that the plasma generator discharges under the drive of the high-voltage square wave. During the discharge process, the air will be ionized to produce free radicals and highly oxidizing molecules, thereby achieving sterilization, deodorization and other effects, and achieving the purpose of streamer sterilization.

[0035] It is understandable that the plasma generator includes a positive electrode and a negative electrode that are spaced apart. The positive electrode and the negative electrode can break through the air under the action of the high voltage output by the power drive circuit, so that the current flows from the positive electrode to the negative electrode. At the moment of breaking through the air, the air exhibits capacitance characteristics, and the instantaneous current is very large, causing the surrounding air to heat and expand rapidly, thereby generating a lot of noise, and then exhibiting resistance characteristics. For example, the current curve between the positive electrode and the negative electrode is as follows: Figure 2 As shown, the horizontal axis represents time t and the vertical axis represents current I. Figure 2 It can be seen that the current I of the plasma generator is very large at the moment of air breakdown.

[0036] It can be seen that when the current streamer sterilization device breaks through the air with a large current in an instant, the air expands due to heat, which will make noise and affect the user experience. In particular, when the streamer sterilization device is used in indoor equipment such as air conditioners, frequent noise interference will affect the user's comfort.

[0037] Based on this, an embodiment of the present application provides a streamer sterilization device that can effectively reduce noise during operation.

[0038] like Figure 3 As shown, the power drive circuit of the embodiment of the present application includes: a boost circuit, a start-up drive circuit and a start-up current control circuit; the boost circuit is used to boost the input voltage and supply power to the positive electrode of the plasma generator, the start-up drive circuit is used to generate a drive signal based on the output voltage of the boost circuit, the start-up current control circuit is arranged between the negative electrode of the plasma generator and the reference ground, and the start-up current control circuit controls the conduction current of the negative electrode based on the drive signal output by the start-up drive circuit.

[0039] It can be understood that in the embodiment of the present application, due to the introduction of the starting drive circuit and the starting current control circuit, the drive signal generated by the starting drive circuit controls the conduction state of the starting current control circuit, thereby realizing the control of the breakdown current between the positive electrode and the negative electrode, so that the current between the two electrodes (that is, the conduction current of the negative electrode) changes slowly during the starting stage, which can effectively reduce the noise generated by the excessive breakdown current between the two electrodes of the streamer sterilization device.

[0040] Exemplarily, the starting drive circuit can be a delay circuit that delays the output based on the output voltage of the boost circuit, so that the breakdown current of the positive electrode and the negative electrode of the plasma generator can rise smoothly during the process of breaking down the air, effectively reducing the noise in the starting stage.

[0041] Exemplarily, the boost circuit comprises:

[0042] A transformer, the transformer comprising a primary winding located on the primary side and a secondary winding and an auxiliary winding located on the secondary side, the secondary winding being connected to the positive electrode of the plasma generator, the auxiliary winding outputting an auxiliary signal following the secondary winding and being connected to the starting drive circuit.

[0043] It can be understood that the transformer has a simple structure and is convenient for controlling the voltage boost of the input power supply.

[0044] Exemplarily, the power drive circuit further includes: a self-excited oscillation circuit, a square wave generator and a switch circuit;

[0045] The self-excited oscillation circuit is used to generate an AC oscillation signal, the square wave generator is used to generate a square wave signal, the primary winding is connected to the AC oscillation signal and is grounded through the switch circuit, and the switch circuit is intermittently turned on based on the square wave signal.

[0046] In an application example, Figure 3As shown, the power drive circuit includes: a self-excited oscillation circuit, a square wave generator, a resonant circuit, a delay circuit and a starting current control circuit, wherein the self-excited oscillation circuit is used to generate an AC oscillation signal, the square wave generator is used to generate a square wave signal, the resonant circuit includes a transformer and a switching circuit, the transformer includes a primary winding located on the primary side and a secondary winding and an auxiliary winding located on the secondary side, the primary winding is connected to the AC oscillation signal and is grounded through the switching circuit, the switching circuit is intermittently turned on based on the square wave signal, the secondary winding is connected to the positive electrode of the plasma generator, the auxiliary winding outputs an auxiliary signal following the secondary winding and is connected to the delay circuit, the starting current control circuit is arranged between the negative electrode of the plasma generator and the reference ground, and the starting current control circuit controls the conduction current of the negative electrode based on the driving signal output by the delay circuit.

[0047] It can be understood that since an auxiliary winding is introduced on the secondary side of the transformer, the auxiliary winding can output an auxiliary signal that follows the voltage waveform changes generated by the secondary winding. In this way, when the high voltage electricity output by the secondary winding breaks down the air between the positive electrode and the negative electrode, the auxiliary signal can generate a drive signal through the delay circuit. The drive signal generated by the delay circuit controls the conduction state of the starting current control circuit, thereby realizing the control of the breakdown current between the positive electrode and the negative electrode, so that the current between the two electrodes (that is, the conduction current of the negative electrode) changes slowly during the startup phase, which can effectively reduce the noise generated by the excessive breakdown current between the two electrodes of the streamer sterilization device.

[0048] Exemplarily, the self-excited oscillation circuit may be an LC oscillation circuit. L in the LC oscillation circuit represents inductance, C represents capacitance, and the time required for the self-excited oscillation circuit to complete a periodic change is called the period T, and the number of periodic changes completed within one second is called the frequency f, that is, f=1 / T. When electromagnetic oscillation occurs in a self-excited oscillation circuit, if there is no energy loss and it is not affected by other external factors, the period and frequency of the electromagnetic oscillation are called the natural frequency and natural period of the oscillation circuit. The natural period can be obtained using T=2π√LC. Exemplarily, the self-excited oscillation circuit can generate a sinusoidal wave signal.

[0049] Exemplarily, the resonant circuit including the transformer and the switch circuit can be a Royer topology circuit, which is also called a self-excited push-pull multivibrator, which uses the magnetic flux saturation of the switching transistor and the transformer core to perform self-excited oscillation, thereby realizing DC conversion based on the "on / off" conversion of the switch tube. It can be understood that the sine wave signal generated by the aforementioned self-excited oscillation circuit passes through the primary winding of the transformer, and based on the conduction control of the switch circuit, a high-voltage square wave signal is output in the secondary winding, which can then be used as a driving power supply for the plasma generator.

[0050] Exemplarily, the square wave generator may be a square wave generating circuit based on an operational amplifier, and the square wave generator may output a square wave signal with a duty cycle of n1 to drive the switch circuit to be intermittently turned on.

[0051] Exemplarily, the delay circuit may be an RC delay circuit. R in the RC delay circuit represents resistance, and C represents capacitance. The delay process of the RC delay circuit is the charging process of the capacitor C, and the charging and discharging formula of the capacitor C is as follows:

[0052] Vt=V0+(V1-V0)*[1-exp(-t / RC)]

[0053] Among them, V0 is the initial voltage value on the capacitor, V1 is the voltage value that the capacitor can eventually be charged or discharged to, and Vt is the voltage value on the capacitor at time t.

[0054] For example, a capacitor with a voltage of E charges a capacitor C with an initial value of 0 through a resistor with a resistance of R. At this time, V0=0, V1=E, and the voltage on the capacitor at time t is: Vt=E*[1-exp(-t / RC)]. If it is a discharge process, a capacitor with an initial voltage of E is discharged through a resistor with a resistance of R. According to the formula V0=E, V1=0, the voltage on the capacitor at time t is: Vt=E*exp(-t / RC).

[0055] It should be noted that the RC delay circuit has the characteristics of simple structure, easy use and low cost.

[0056] Exemplarily, the startup current control circuit includes a switch tube that operates based on a drive signal output by the delay circuit.

[0057] It can be understood that the driving signal output by the delay circuit can make the switch tube work in the amplification area first, thereby effectively suppressing the breakdown current between the positive electrode and the negative electrode of the plasma generator, so that the breakdown current can rise smoothly during the startup phase, thereby reducing noise.

[0058] Here, the switch tube can be an IGBT (Insulated Gate Bipolar Transistor), or a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) or a triode, which is not limited in the embodiments of the present application.

[0059] Exemplarily, the streamer sterilization device further includes:

[0060] The voltage doubler circuit is arranged between the output side of the voltage booster circuit and the positive electrode of the plasma generator.

[0061] It can be understood that in order to further increase the voltage value of the driving power supply of the plasma generator, a voltage doubling circuit can be set between the secondary winding and the positive electrode. The voltage doubling circuit can increase the voltage output by the secondary winding. For example, assuming that the secondary winding outputs a voltage signal of V1, the boost factor of the voltage doubling circuit is N, then the voltage signal output by the voltage doubling circuit is N*V1.

[0062] Here, the voltage doubling circuit can be constructed based on fast recovery diodes and capacitors, and the voltage is gradually increased by utilizing the unidirectional conductivity of the diode (the characteristics of the switch) and the energy storage characteristics of the capacitor, thereby generating double voltage, triple voltage, and multiple voltage rectifier circuits.

[0063] Exemplarily, the streamer sterilization device further includes:

[0064] The constant current control circuit is arranged between the cathode electrode of the plasma generator and the reference ground, and is used to limit the conduction current of the starting current control circuit to be constant after the saturation conduction.

[0065] In the embodiment of the present application, in order to further optimize the working noise of the plasma generator, after the switch tube of the starting current control circuit is saturated and turned on, the conduction current can be made constant based on the constant current control circuit, thereby effectively reducing the noise caused by current fluctuations.

[0066] Exemplarily, the constant current control circuit may be a constant current source circuit based on an operational amplifier or a constant current source circuit based on a voltage regulator tube.

[0067] It should be noted that in the embodiment of the present application, by introducing a constant current control circuit between the negative electrode of the plasma generator and the reference ground, after the switch tube of the starting current control circuit is saturated and turned on, the conduction current between the positive electrode and the negative electrode can be made constant based on the constant current control circuit, which can effectively reduce the generation of high-frequency noise.

[0068] In an application example, the current curve between the positive electrode and the negative electrode is as follows: Figure 4 As shown, the horizontal axis represents time t and the vertical axis represents current I. Figure 4 It can be seen that during the startup phase of the plasma generator, based on the driving signal generated by the delay circuit, the switch tube of the startup current control circuit operates in the amplification area, effectively suppressing the breakdown current between the positive electrode and the negative electrode of the plasma generator, so that the breakdown current can rise smoothly during the startup phase, thereby reducing noise; after the switch tube is saturated and turned on, the conduction current is kept constant based on the constant current control circuit, thereby effectively reducing the noise caused by current fluctuations.

[0069] Exemplarily, the secondary winding and the auxiliary winding are electrically insulated and isolated from the primary winding.

[0070] Here, the primary winding of the primary side of the transformer is electrically insulated from the secondary winding and auxiliary winding of the secondary side of the transformer, so that the current of the primary coil and the secondary coil are respectively insulated and isolated, which can effectively avoid electrostatic interference and electrostatic breakdown during the operation of the streamer sterilization device.

[0071] Exemplarily, the plasma generator may be a dielectric barrier discharge generator for dielectric barrier discharge.

[0072] The streamer sterilization device of the embodiment of the present application is illustrated below with reference to an application example.

[0073] like Figure 5 As shown, in this application example, the capacitor C1 and the inductor L1 constitute a self-excited oscillation circuit, which outputs a sinusoidal wave signal to the primary winding of the primary side of the transformer, the primary winding includes a first coil, a second coil and a third coil with mutual inductance with the first coil and the second coil, the first end of the first coil and the first end of the second coil are connected and connected to the sinusoidal wave signal, the second end of the first coil is grounded via the MOS tube Q1 in the switch circuit, and the second end of the second coil is grounded via the MOS tube Q2 in the switch circuit.

[0074] Reference Figure 5 A capacitor C2 is arranged between the second end of the first coil and the second end of the second coil, the second end of the first coil is connected to the drain of the MOS tube Q1, the second end of the second coil is connected to the drain of the MOS tube Q2, and the source of the MOS tube Q1 and the source of the MOS tube Q2 are connected to the ground terminal GND.

[0075] The square wave generator is a self-excited oscillation circuit based on an operational amplifier, which outputs a square wave signal AMP-V with a duty cycle of n1. The square wave signal AMP-V is divided into two paths, one of which is connected to the gate of the MOS tube Q2 through a resistor R2, and the other is connected to the gate of the MOS tube Q1 through a resistor R3. A resistor R4 is set between the gate and the source of the MOS tube Q1, and a resistor R5 is set between the gate and the source of the MOS tube Q2. The two ends of the third coil are respectively connected to the gate of the MOS tube Q1 and the gate of the MOS tube Q2, and a branch including a resistor R1 and a capacitor C3 is also set between the two ends of the third coil. It can be understood that under the drive of the square wave signal AMP-V, the MOS tube Q1 and the MOS tube Q2 are alternately turned on, so that the first coil and the second coil are alternately turned on, and the secondary winding on the secondary side outputs a voltage signal of V1, and then the voltage signal output by the voltage doubler circuit is N*V1. In this application example, N=3. The voltage signal output by the voltage doubler circuit is applied to the positive electrode of the dielectric barrier discharge generator. At the same time, a low-voltage follower signal (i.e., auxiliary signal) with a duty cycle of n1 is output on the auxiliary winding, and the low-voltage follower signal is transmitted to the delay circuit via the diode D4, and the delay circuit includes a resistor R7 and a capacitor E1. The delay circuit can slowly increase the base current of the transistor Q7 as the starting current control circuit. At this time, the transistor Q7 works in the amplification area, suppressing the circuit flowing between the positive electrode and the negative electrode motor, so that the current of the electrode at the moment of breaking through the air rises smoothly, thereby reducing noise.

[0076] It can be understood that, based on the cooperation of the auxiliary winding, the delay circuit and the transistor Q7, the breakdown current between the positive electrode and the negative electrode can be controlled to have a slow climbing process during the startup phase, so that the noise during the startup phase can be effectively reduced.

[0077] Reference Figure 5 A constant current control circuit is arranged between the collector and the cathode electrode of the transistor Q7, and the emitter of the transistor Q7 is connected to the reference ground Earth. The constant current control circuit comprises: a transistor Q3, a resistor R6, a resistor R8 and a voltage regulator DZ1, the emitter of the transistor Q3 is connected to the first end of the resistor R8, the second end of the resistor R8 is connected to the collector of the transistor Q7, the voltage regulator DZ1 is connected between the base of the transistor Q3 and the second end of the resistor R8, the resistor R6 is connected between the base and the collector of the transistor Q3, and the collector of the transistor Q3 is connected to the cathode electrode.

[0078] It can be understood that after the transistor Q7 is saturated and turned on, the conduction current between the positive electrode and the negative electrode will be limited to the current Ic, and the current Ic is calculated as follows:

[0079] Ic=(Vdz1-Vbe) / r8

[0080] Wherein, Vdz1 is the voltage value of the voltage regulator DZ1, Vbe is the conduction voltage drop of the transistor Q3, and r8 is the resistance value of the resistor R8. In this way, after the transistor Q7 is saturated and turned on, the conduction current between the positive electrode and the negative electrode can be constant based on the constant current control circuit, which can effectively reduce the generation of high-frequency noise.

[0081] It can be understood that the electrical isolation between the primary and secondary sides of the transformer can effectively avoid electrostatic interference and electrostatic breakdown during the operation of the streamer sterilization device, thereby improving the safety of operation.

[0082] The streamer sterilization device in this application example can control the conduction current between the positive electrode and the negative electrode, smooth the instantaneous overshoot current when the electric field breaks through the air, thereby suppressing the generation of noise, and based on the constant current control circuit, the current is constant during saturation conduction, further optimizing the noise. In addition, the introduction of the auxiliary winding output control signal achieves electrical isolation and improves safety.

[0083] The embodiment of the present application also provides an electronic device, which includes the streamer sterilization device described above in the embodiment of the present application. In this way, based on the plasma generator of the streamer sterilization device, sterilization, deodorization and other effects can be achieved, and the streamer sterilization device can effectively reduce working noise without reducing the sterilization ability, and achieve electrical isolation to improve work safety.

[0084] Exemplarily, the electronic device may be an air conditioner. The air conditioner is used to adjust the temperature, humidity, etc. of the environment. The air conditioner may be a cooling-only air conditioner or a cooling-heating dual-purpose air conditioner. The air conditioner may be a wall-mounted air conditioner, a cabinet-type air conditioner, a window-type air conditioner, or a ceiling-mounted air conditioner, etc., which is not specifically limited in the embodiments of the present application.

[0085] Exemplarily, the streamer sterilization device can be arranged in the air duct of the air conditioner, and can utilize the free radicals and highly oxidizing molecules generated by the discharge of the plasma generator to eliminate bacteria in the air duct and the indoor environment, thereby purifying the air well.

[0086] It is understandable that, in other embodiments, the electronic device may also be an electronic device with air purification function such as a fresh air blower.

[0087] It should be noted that: "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0088] In addition, the technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[0089] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A streamer sterilization device, characterized in that: include: A power drive circuit and a plasma generator operated based on a drive power output by the power drive circuit; The power drive circuit includes: a boost circuit, a start-up drive circuit and a start-up current control circuit; The boost circuit is used to boost the input voltage and supply power to the positive electrode of the plasma generator. The starting drive circuit is used to generate a drive signal based on the output voltage of the boost circuit. The starting current control circuit is arranged between the negative electrode of the plasma generator and the reference ground. The starting current control circuit controls the conduction current of the negative electrode based on the drive signal output by the starting drive circuit.

2. The streamer sterilization device according to claim 1, characterized in that: The boost circuit comprises: A transformer, the transformer comprising a primary winding located on the primary side and a secondary winding and an auxiliary winding located on the secondary side, the secondary winding being connected to the positive electrode of the plasma generator, the auxiliary winding outputting an auxiliary signal following the secondary winding and being connected to the start-up drive circuit.

3. The streamer sterilization device according to claim 2, characterized in that: The power drive circuit also includes: a self-excited oscillation circuit, a square wave generator and a switch circuit; The self-excited oscillation circuit is used to generate an AC oscillation signal, the square wave generator is used to generate a square wave signal, the primary winding is connected to the AC oscillation signal and is grounded through the switch circuit, and the switch circuit is intermittently turned on based on the square wave signal.

4. The streamer sterilization device according to claim 1, characterized in that: The streamer sterilization device also includes: The voltage doubler circuit is arranged between the output side of the voltage booster circuit and the positive electrode of the plasma generator.

5. The streamer sterilization device according to claim 1, characterized in that: The streamer sterilization device also includes: The constant current control circuit is arranged between the cathode electrode of the plasma generator and the reference ground, and is used to limit the conduction current of the starting current control circuit to be constant after the saturation conduction.

6. The streamer sterilization device according to claim 1, characterized in that: The start-up drive circuit is an RC delay circuit.

7. The streamer sterilization device according to claim 1, characterized in that: The startup current control circuit includes a switch tube that works based on the drive signal.

8. The streamer sterilization device according to claim 5, characterized in that: The constant current control circuit is a constant current source circuit based on an operational amplifier or a constant current source circuit based on a voltage regulator tube.

9. The streamer sterilization device according to claim 3, characterized in that: The self-excited oscillation circuit is an LC oscillation circuit.

10. The streamer sterilization device according to claim 3, characterized in that: The square wave generator is a square wave generating circuit based on an operational amplifier.

11. The streamer sterilization device according to claim 2, characterized in that: The secondary winding and the auxiliary winding are electrically insulated and isolated from the primary winding.

12. An electronic device, characterized in that: include: A streamer sterilization device as claimed in any one of claims 1 to 11.

13. The electronic device according to claim 12, characterized in that: The electronic device is an air conditioner.

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