Driving circuit and device based on atmospheric component detection

Abstract

The utility model relates to the field of driving circuits, in particular to a driving circuit and device based on atmospheric composition detection, which comprises a DC-DC conversion circuit, a potentiometer adjusting circuit, a ZVS circuit and a high-voltage output terminal. The DC-DC conversion circuit is used for receiving input voltage and converting and boosting output high-voltage signals, and the output voltage is finely adjusted through the potentiometer adjusting circuit; the ZVS circuit outputs the high-voltage signal to a high-voltage electrode of the ultraviolet lamp through the high-voltage output terminal, and the high-voltage signal output terminal is connected to the ultraviolet lamp. The technical problems that a traditional driving circuit is low in efficiency, poor in stability and large in interference are solved.

Description

Technical Field

[0001] The utility model relates to the field of driving circuits, in particular to a driving circuit and a device based on atmospheric component detection. Background Art

[0002] Air pollution monitoring refers to the process of observing the main pollutants in a region's atmosphere and evaluating the quality of the atmospheric environment. Air quality monitoring typically involves regularly monitoring a specified area using a few or a dozen representative sampling points, based on factors such as the region's size, the distribution of air pollution sources, meteorological conditions, and topography.

[0003] The drive circuit, located between the main circuit and the control circuit, is an intermediate circuit used to amplify the control circuit's signals (i.e., amplify the control circuit's signals so that they can drive the power transistors). Its basic task is to convert the signals from the information electronic circuit into signals that, according to the control objectives, are applied between the control terminal and the common terminal of the power electronic device to turn it on or off. For semi-controlled devices, only the on control signal is required, while for fully controlled devices, both on and off control signals are required to ensure that the device can reliably turn on or off as required.

[0004] The ME3110 is a high-efficiency synchronous rectifier step-down DC-DC converter IC with an input voltage of up to 18V. It integrates two low-on-resistance NMOSFET power switches, with a low-side switch on-resistance of 70mΩ and a high-side switch on-resistance of 140mΩ, supporting a load current of 2A. Under light loads, the chip operates in PFM mode. Under heavy loads, it operates in continuous current quasi-PWM mode with a switching frequency of 500kHz. The chip utilizes an adaptive constant on-time control architecture, enabling fast load transient response. The chip also integrates overtemperature protection, input undervoltage lockout, cycle-by-cycle current limit protection, and output short-circuit protection to enhance chip reliability.

[0005] For example, Chinese utility model patent publication number CN201020293246 discloses a constant-voltage driving power supply for LED lighting, which is used to drive high-power LED lighting, including a power conversion main circuit and a control circuit; the power conversion main circuit includes an AC input terminal, a full-bridge rectifier circuit, an active power factor boost converter, a half-bridge series resonant DC / DC power converter and a DC output terminal connected in sequence; the control circuit includes a high power factor correction control circuit, an auxiliary power supply, a half-bridge series resonant DC / DC conversion control circuit and a voltage feedback control circuit connected in sequence; the output terminal of the high power factor correction control circuit is connected to the input terminal of the half-bridge series resonant DC / DC conversion control circuit through power factor correction and pulse width modulation.

[0006] Chinese invention patent publication number CN201610113231 discloses a modular high-power, high-voltage switching DC power supply. The power supply consists of an input rectifier and filter module, a phase-shifted full-bridge controller, a signal sampling and conditioning module, an output module array, and a feedback control module. All output modules are standardized to 2500V / 3A, with identical structures and parameters. The system utilizes a closed-loop control structure with a single output module as the reference, and multiple output modules as the follower. Specifically, the system consists of a single module for input rectifier and filter, phase-shifted full-bridge controller, signal sampling and conditioning module, and feedback control module, while multiple output modules form an output array connected in series, parallel, or in multiple series-parallel combinations. However, the output signal is sampled from only one reference output module, simplifying hardware implementation. The feedback control module implements a dual closed-loop PID control algorithm based on a voltage outer loop and a current inner loop. The power supply utilizes a distributed, linear temperature control system that automatically adjusts local air cooling capacity.

[0007] Currently, traditional drive circuits use a large number of switching tubes and require good parameter consistency. The drive circuit is complex, making synchronization difficult. In response to the above situation, the present utility model proposes a drive circuit and device based on atmospheric composition detection. A DC-DC converter is used to boost the input 5V voltage into the required high-voltage signal (e.g., 900V), and the output voltage is fine-tuned using a potentiometer. The ZVS circuit ensures efficient operation of the switching tubes during the conversion process and outputs the high-voltage signal to the high-voltage electrode of the UV lamp, thereby achieving efficient driving of the UV lamp. This circuit can effectively address the technical problems of low efficiency, poor stability, and high interference in traditional solutions. Utility Model Content

[0008] The purpose of the utility model is to overcome the technical problems of low efficiency, poor stability and large interference in the prior art, and to provide a driving circuit and device based on atmospheric component detection.

[0009] In a first aspect, the utility model provides a driving circuit based on atmospheric component detection, comprising a DC-DC conversion circuit, a potentiometer adjustment circuit, a ZVS circuit, and a high-voltage output terminal;

[0010] The DC-DC conversion circuit is used to receive an input voltage, convert it into a boosted output high voltage signal, and fine-tune the output voltage through the potentiometer adjustment circuit;

[0011] The ZVS circuit outputs the high voltage signal to the high voltage electrode of the ultraviolet lamp through the high voltage output terminal, and the high voltage signal output end is connected to the ultraviolet lamp.

[0012] DC-DC converter: This converter circuit boosts the input low-voltage DC voltage to the required high voltage. The design uses a ZVS (Zero Voltage Switching) circuit to improve conversion efficiency and reduce electromagnetic interference. Compared to traditional boost circuits, ZVS generates less electromagnetic interference, further improving the accuracy of low-current detection.

[0013] Potentiometer adjustment circuit: By adjusting the potentiometer, the 5V output voltage of the DC-DC converter is fine-tuned, thereby fine-tuning the final output voltage. This part usually includes a potentiometer and corresponding circuitry to adjust the feedback signal or reference voltage to control the output voltage of the converter.

[0014] A ZVS circuit is used to boost the stepped-down DC power supply to generate the high-voltage AC power required for UV lamp operation and the high-voltage DC power required for electrodes (DC power is obtained by rectifying the AC power supply). The key to a ZVS circuit is to maintain zero voltage during switching, minimizing switching losses and improving efficiency. This circuit typically includes an appropriate inductor and capacitor network, as well as a control circuit. By leveraging the circuit's inherent asymmetry and rationally designing the inductor and capacitor parameters to control the circuit's resonant frequency, the circuit's voltage and current approach zero when the switch is turned on and off in the resonant state.

[0015] High-voltage output terminal: transmits the high-voltage signal output by the DC-DC converter to the high-voltage electrode of the UV lamp to drive the UV lamp to generate ultraviolet light.

[0016] Preferably, the DC-DC conversion circuit includes: a DC-DC converter chip, a first inductor, a sliding rheostat, a first resistor, a second resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor and an eighth capacitor.

[0017] Preferably, the DC-DC converter chip includes an LX terminal, a VIN terminal, an EN terminal, a BOOT terminal, a GND terminal and an FB terminal;

[0018] The VIN terminal and the EN terminal of the DC-DC converter chip are connected, and the input voltage is input through the VIN terminal and the EN terminal;

[0019] The first capacitor is connected to the BOOT terminal and the LX terminal; one end of the first inductor is connected to the LX terminal, and the end away from the LX terminal is connected to the power supply voltage;

[0020] One end of the first resistor is connected to one end of the sliding rheostat, and the other end is connected to the power supply voltage; the end of the sliding rheostat away from the first resistor is connected in series with the second resistor and is grounded; the second capacitor is connected in parallel with the first resistor;

[0021] The third capacitor, the fourth capacitor, the fifth capacitor and the sixth capacitor are connected in parallel between the VCC terminal and the GND terminal. One end of the seventh capacitor and the eighth capacitor is grounded, and the other end is connected to the line through which the input current flows.

[0022] Preferably, the DC-DC converter chip is a ME3110AM6G chip.

[0023] In a second aspect, the utility model provides a ZVS circuit, comprising a second inductor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, an N-channel field effect transistor, a P-channel field effect transistor, a dual N-channel field effect transistor, a high-frequency transformer, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a ninth capacitor, a tenth capacitor, an eleventh capacitor, and a twelfth capacitor;

[0024] The gate of the N-channel field effect transistor is connected to the input high voltage, the drain of the N-channel field effect transistor is connected to the fourth resistor, and the source is grounded; one end of the third resistor is connected to the gate of the N-channel field effect transistor, and one end is grounded;

[0025] The drain of the P-channel field effect transistor is connected to the power supply voltage, the gate of the P-channel field effect transistor is connected to the drain of the N-channel field effect transistor, the source of the P-channel field effect transistor is connected to one end of the fifth resistor and the sixth resistor, the other end of the fifth resistor is connected to the seventh resistor, and the end of the sixth resistor away from the source of the P-channel field effect transistor is connected to the eighth resistor. The seventh resistor and the third diode are connected in parallel, and the eighth resistor and the fourth diode are connected in parallel.

[0026] Preferably, the dual N-channel field effect transistor includes gates G1 and G2, sources S1 and S2, and drains D1 and D2;

[0027] The S1 and S2 are grounded, the G1 is connected to the cathode of the third diode, the anode of the third diode is connected to the anode of the fourth diode, and the G2 is connected to the cathode of the fourth diode;

[0028] The D1 is connected to the cathode of the first diode, the D2 is connected to the cathode of the second diode, the anode of the first diode is connected between the sixth resistor and the eighth resistor, and the anode of the second diode is connected between the fifth resistor and the seventh resistor.

[0029] Preferably, the high-frequency transformer includes a first pin, a second pin, a third pin, a fourth pin, a fifth pin, a sixth pin and a tenth pin;

[0030] The first and second pins are connected to a high voltage circuit including a plurality of diodes and capacitors;

[0031] One end of the second inductor is connected to the VCC terminal, and the other end away from the VCC terminal is connected to the fourth pin;

[0032] One end of the ninth capacitor is connected to D1 and the fifth pin, and one end away from D1 and the fifth pin is connected to D2 and the third pin;

[0033] The sixth pin is grounded, and the tenth pin is connected to the radio frequency current.

[0034] Preferably, the specific connection method of the high-voltage circuit includes: high-voltage current is input from the positive electrode of the sixth diode, the second pin is connected to the negative electrode of the fifth diode, the first pin is connected to the negative electrode of the seventh diode, the sixth diode and the fifth diode are connected in series, the seventh diode and the eighth diode are connected in series, the fifth diode, the sixth diode and the seventh diode, the eighth diode are connected in parallel, and the seventh diode, the eighth diode and the tenth capacitor, the eleventh capacitor, and the twelfth capacitor are connected in parallel to the ground.

[0035] Preferably, the dual N-channel field effect transistor adopts a WSD3056DN chip, and the high-frequency transformer adopts an EFD15 transformer.

[0036] The WSD3056DN is the highest performance trench dual N-channel MOSFET with very high cell density, providing excellent temperature coefficient characteristics and gate for charging DC-DC converter applications.

[0037] ZVS circuits often utilize the resonant characteristics of inductors and capacitors to achieve zero-voltage switching under resonant conditions. The high-frequency transformer, as an inductor, forms a resonant circuit with the capacitors in the circuit, providing the necessary conditions for the implementation of ZVS circuits.

[0038] As a preferred embodiment of the present invention,

[0039] A device based on atmospheric composition detection includes at least one processor and a memory communicatively connected to the at least one processor; the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute any of the circuits described above.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] The utility model provides a driving circuit and device based on atmospheric composition detection. By combining a ZVS circuit with a DC-DC converter, the efficiency and stability of the driving circuit can be improved, and the performance and reliability of the entire sensor system can be further enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a circuit structure diagram of the utility model;

[0043] Figure 2 This is a diagram of a DC-DC converter according to Example 1 of the present utility model;

[0044] Figure 3 This is the ZVS circuit diagram of Example 1 of the present utility model. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below with reference to test examples and specific implementation methods. However, this should not be construed as limiting the scope of the present invention to the following embodiments. All technologies implemented based on the present invention fall within the scope of the present invention.

[0046] In addition, the expressions "first", "second", "third", etc. that appear in the terms are merely descriptions used to distinguish the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0047] In addition, in the description of the embodiments of the present invention, "several", "a plurality", and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0048] Furthermore, in the description of the technical solutions of this utility model, unless otherwise expressly specified / defined / restricted, the terms "disposed," "installed," "connected," "connected," "provided with," "laid," and "arranged" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be welding, riveting, bolting, threading, or other commonly used connection methods in the art. Such connections may be mechanical, electrical, or communication connections; they may be direct connections, indirect connections through an intermediate medium, or internal connections between two components.

[0049] Example 1

[0050] like Figure 1 As shown, a driving circuit based on atmospheric component detection includes a DC-DC conversion circuit, a potentiometer adjustment circuit, a ZVS circuit and a high-voltage output terminal;

[0051] The DC-DC conversion circuit is used to receive an input voltage, convert it into a boosted output high voltage signal, and fine-tune the output voltage through the potentiometer adjustment circuit;

[0052] The ZVS circuit outputs the high voltage signal to the high voltage electrode of the ultraviolet lamp through the high voltage output terminal, and the high voltage signal output end is connected to the ultraviolet lamp.

[0053] In one or more embodiments, Figure 2 As shown, the DC-DC conversion circuit may include: a DC-DC converter chip, a first inductor, a sliding rheostat, a first resistor, a second resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor and an eighth capacitor.

[0054] The DC-DC converter chip includes an LX terminal, a VIN terminal, an EN terminal, a BOOT terminal, a GND terminal and an FB terminal;

[0055] The VIN terminal and the EN terminal of the DC-DC converter chip are connected, and the input voltage is input through the VIN terminal and the EN terminal;

[0056] The first capacitor is connected to the BOOT terminal and the LX terminal; one end of the first inductor is connected to the LX terminal, and the end away from the LX terminal is connected to the power supply voltage;

[0057] One end of the first resistor is connected to one end of the sliding rheostat, and the other end is connected to the power supply voltage; the end of the sliding rheostat away from the first resistor is connected in series with the second resistor and is grounded; the second capacitor is connected in parallel with the first resistor;

[0058] The third capacitor, the fourth capacitor, the fifth capacitor and the sixth capacitor are connected in parallel between the VCC terminal and the GND terminal. One end of the seventh capacitor and the eighth capacitor is grounded, and the other end is connected to the line through which the input current flows.

[0059] The LX pin is used to output a high-frequency switching signal to control the subsequent power conversion process;

[0060] The BOOT pin is used to supply voltage during the startup process;

[0061] VIN is the input voltage pin, which receives external power;

[0062] GND is the ground pin;

[0063] EN is the enable pin, which is used to control the chip on or off;

[0064] FB is the feedback pin, which receives the feedback signal of the output voltage to adjust the stability of the output voltage.

[0065] This circuit primarily implements a synchronous rectification DC-DC converter. It electrically isolates and converts the input DC voltage (VIN) through a high-frequency transformer, then converts it to a stable DC output voltage via a rectifier bridge. During this conversion process, a synchronous oscillator DC-DC converter chip provides the necessary control signals to adjust the output voltage's stability and accuracy. Dual N-channel MOSFETs serve as switching elements, enabling efficient power conversion under the chip's control.

[0066] In one or more embodiments, Figure 3 As shown, HV_EN is a high voltage enable pin used to control the operation of the high voltage circuit;

[0067] The ZVS circuit includes a second inductor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, an N-channel field effect transistor, a P-channel field effect transistor, a dual N-channel field effect transistor, a high-frequency transformer, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a ninth capacitor, a tenth capacitor, an eleventh capacitor, and a twelfth capacitor;

[0068] The gate of the N-channel field effect transistor is connected to the input high voltage, the drain of the N-channel field effect transistor is connected to the fourth resistor, and the source is grounded; one end of the third resistor is connected to the gate of the N-channel field effect transistor, and one end is grounded;

[0069] The drain of the P-channel field effect transistor is connected to the power supply voltage, the gate of the P-channel field effect transistor is connected to the drain of the N-channel field effect transistor, the source of the P-channel field effect transistor is connected to one end of the fifth resistor and the sixth resistor, the other end of the fifth resistor is connected to the seventh resistor, and the end of the sixth resistor away from the source of the P-channel field effect transistor is connected to the eighth resistor. The seventh resistor and the third diode are connected in parallel, and the eighth resistor and the fourth diode are connected in parallel.

[0070] The dual N-channel field effect transistor includes gates G1 and G2, sources S1 and S2, and drains D1 and D2;

[0071] The S1 and S2 are grounded, the G1 is connected to the cathode of the third diode, the anode of the third diode is connected to the anode of the fourth diode, and the G2 is connected to the cathode of the fourth diode;

[0072] The D1 is connected to the cathode of the first diode, the D2 is connected to the cathode of the second diode, the anode of the first diode is connected between the sixth resistor and the eighth resistor, and the anode of the second diode is connected between the fifth resistor and the seventh resistor.

[0073] In an optional embodiment, the high-frequency transformer includes a first pin, a second pin, a third pin, a fourth pin, a fifth pin, a sixth pin, a seventh pin, an eighth pin, a ninth pin, and a tenth pin;

[0074] The first and second pins are connected to a high voltage circuit including a plurality of diodes and capacitors;

[0075] One end of the second inductor is connected to the VCC terminal, and the other end away from the VCC terminal is connected to the fourth pin;

[0076] One end of the ninth capacitor is connected to D1 and the fifth pin, and one end away from D1 and the fifth pin is connected to D2 and the third pin;

[0077] The sixth pin is grounded, and the tenth pin is connected to the radio frequency current.

[0078] The specific connection method of the high-voltage circuit includes: high-voltage current is input from the positive electrode of the sixth diode, the second pin is connected to the negative electrode of the fifth diode, the first pin is connected to the negative electrode of the seventh diode, the sixth diode and the fifth diode are connected in series, the seventh diode and the eighth diode are connected in series, the fifth diode, the sixth diode and the seventh diode and the eighth diode are connected in parallel, and the seventh diode, the eighth diode and the tenth capacitor, the eleventh capacitor, and the twelfth capacitor are connected in parallel to ground.

[0079] The fifth to eighth diodes form a full-wave rectifier circuit to ensure the stability and ripple factor of the output voltage.

[0080] like Figure 2The 100nF and 10uF capacitors shown are used for filtering to reduce the output voltage ripple; the 20K resistor is used as a current sampling resistor.

[0081] Potentiometer adjustment circuit: By adjusting the potentiometer, the 5V output voltage of the DC-DC converter is fine-tuned, thereby fine-tuning the final output voltage. This part usually includes a potentiometer and corresponding circuitry to adjust the feedback signal or reference voltage to control the output voltage of the converter.

[0082] A ZVS circuit is used to boost the stepped-down DC power supply to generate the high-voltage AC power required for UV lamp operation and the high-voltage DC power required for electrodes (DC power is obtained by rectifying the AC power supply). The key to a ZVS circuit is to maintain zero voltage during switching, minimizing switching losses and improving efficiency. This circuit includes appropriate inductor and capacitor networks and a control circuit. By leveraging the circuit's inherent asymmetry and properly designing the inductor and capacitor parameters, the circuit's resonant frequency is controlled, ensuring that both the voltage and current in the circuit approach zero when the switch is turned on and off in the resonant state.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A driving circuit based on atmospheric component detection, characterized in that: Including DC-DC conversion circuit, potentiometer adjustment circuit, ZVS circuit and high voltage output terminal; The DC-DC conversion circuit is used to receive an input voltage, convert it into a boosted output high voltage signal, and fine-tune the output voltage through the potentiometer adjustment circuit; The ZVS circuit outputs the high voltage signal to the high voltage electrode of the ultraviolet lamp through the high voltage output terminal, and the high voltage signal output end is connected to the ultraviolet lamp.

2. A driving circuit based on atmospheric component detection according to claim 1, characterized in that: The DC-DC conversion circuit includes: a DC-DC converter chip, a first inductor, a sliding rheostat, a first resistor, a second resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor and an eighth capacitor; The DC-DC converter chip includes an LX terminal, a VIN terminal, an EN terminal, a BOOT terminal, a GND terminal and an FB terminal; The VIN terminal and the EN terminal of the DC-DC converter chip are connected, and the input voltage is input through the VIN terminal and the EN terminal; The first capacitor is connected to the BOOT terminal and the LX terminal; one end of the first inductor is connected to the LX terminal, and the end away from the LX terminal is connected to the power supply voltage; One end of the first resistor is connected to one end of the sliding rheostat, and the other end is connected to the power supply voltage; the end of the sliding rheostat away from the first resistor is connected in series with the second resistor and is grounded; the second capacitor is connected in parallel with the first resistor; The third capacitor, the fourth capacitor, the fifth capacitor and the sixth capacitor are connected in parallel between the VCC terminal and the GND terminal. One end of the seventh capacitor and the eighth capacitor is grounded, and the other end is connected to the line through which the input current flows.

3. The driving circuit based on atmospheric component detection according to claim 1, characterized in that: The ZVS circuit includes a second inductor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, an N-channel field effect transistor, a P-channel field effect transistor, a dual N-channel field effect transistor, a high-frequency transformer, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a ninth capacitor, a tenth capacitor, an eleventh capacitor, and a twelfth capacitor; The gate of the N-channel field effect transistor is connected to the input high voltage, the drain of the N-channel field effect transistor is connected to the fourth resistor, and the source is grounded; one end of the third resistor is connected to the gate of the N-channel field effect transistor, and one end is grounded; The drain of the P-channel field effect transistor is connected to the power supply voltage, the gate of the P-channel field effect transistor is connected to the drain of the N-channel field effect transistor, the source of the P-channel field effect transistor is connected to one end of the fifth resistor and the sixth resistor, the other end of the fifth resistor is connected to the seventh resistor, the end of the sixth resistor away from the source of the P-channel field effect transistor is connected to the eighth resistor, the seventh resistor and the third diode are connected in parallel, and the eighth resistor and the fourth diode are connected in parallel; The dual N-channel field effect transistor includes gates G1 and G2, sources S1 and S2, and drains D1 and D2; The S1 and S2 are grounded, the G1 is connected to the cathode of the third diode, the anode of the third diode is connected to the anode of the fourth diode, and the G2 is connected to the cathode of the fourth diode; The D1 is connected to the cathode of the first diode, the D2 is connected to the cathode of the second diode, the anode of the first diode is connected between the sixth resistor and the eighth resistor, and the anode of the second diode is connected between the fifth resistor and the seventh resistor.

4. A driving circuit based on atmospheric component detection according to claim 3, characterized in that: The high-frequency transformer includes a first pin, a second pin, a third pin, a fourth pin, a fifth pin, a sixth pin and a tenth pin; The first and second pins are connected to a high voltage circuit including a plurality of diodes and capacitors; One end of the second inductor is connected to the VCC terminal, and the other end away from the VCC terminal is connected to the fourth pin; One end of the ninth capacitor is connected to D1 and the fifth pin, and one end away from D1 and the fifth pin is connected to D2 and the third pin; The sixth pin is grounded, and the tenth pin is connected to the radio frequency current; The specific connection method of the high-voltage circuit includes: high-voltage current is input from the positive electrode of the sixth diode, the second pin is connected to the negative electrode of the fifth diode, the first pin is connected to the negative electrode of the seventh diode, the sixth diode and the fifth diode are connected in series, the seventh diode and the eighth diode are connected in series, the fifth diode, the sixth diode and the seventh diode and the eighth diode are connected in parallel, and the seventh diode, the eighth diode and the tenth capacitor, the eleventh capacitor, and the twelfth capacitor are connected in parallel to ground.

5. The driving circuit based on atmospheric component detection according to claim 2, characterized in that: The DC-DC converter chip adopts ME3110AM6G chip.

6. The driving circuit based on atmospheric component detection according to claim 3, characterized in that: The dual N-channel field effect transistor adopts WSD3056DN chip, and the high-frequency transformer adopts EFD15 transformer.

7. A device based on atmospheric composition detection, applied to the driving circuit according to claim 1, characterized in that: It includes at least one processor and a memory communicatively connected to the at least one processor; the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the circuit described in claim 1.

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