CN116015094A - Bipolar intermittent pulse power supply suitable for DBD load - Google Patents
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Abstract
The invention discloses a bipolar intermittent pulse power supply suitable for a dielectric barrier discharge (Dielectric Barrier Discharge, hereinafter referred to as DBD) load. The invention utilizes resonance of the external inductor, the transformer excitation inductor, the external capacitor and the DBD load, not only generates bipolar intermittent pulse excitation voltage on the DBD load, but also realizes high-efficiency utilization of parasitic parameters of the transformer and ensures that all power devices work in a soft switching state. Compared with other types of power supplies, the power supply disclosed by the invention has the advantages of fully playing the DBD load characteristic, high efficiency and compact structure.
Description
Technical Field
The invention relates to the field of special power supplies for power electronics, in particular to a bipolar intermittent pulse power supply suitable for a DBD load.
Background
DBD discharge is a form of unbalanced gas discharge in which an insulating dielectric layer is added to the discharge gap. Studies have shown that when the physical structure of the DBD load and the characteristics of the discharge gas (discharge gas type, flow rate, gas pressure, etc.) are determined, the discharge condition of the DBD load depends on the excitation waveform generated by the power supply. In order to fully exert the performance of the DBD load, researchers at home and abroad test various excitation waveforms, and draw the conclusion: the excitation waveform having a high voltage rise rate and an intermittent time can fully exert the performance of the DBD load. However, it is difficult to achieve this with a simple structure of the power supply.
The power supply based on the magnetic compression technology can generate unipolar excitation waveforms with high voltage rising rate and intermittent time on the DBD load, but has the problems of large number of magnetic elements, great difficulty in design of the magnetic elements, difficulty in fully utilizing the potential of the generated unipolar excitation waveforms of the DBD load and the like;
the power supply based on a flyback (forward) circuit can also generate a unipolar excitation waveform with high voltage rising rate and intermittent time, and has the advantage of simple structure, but has the defects that excitation voltage oscillation on a DBD load is difficult to avoid, transformer magnetic saturation is caused by single-phase excitation, and the potential of the DBD load is difficult to fully utilize;
the power supply based on the Marx circuit can generate bipolar excitation waveforms with high voltage rising rate and intermittent time on the DBD load, but has the defects of more components, complex driving circuit and the like;
the bipolar excitation waveform with high voltage rising rate and intermittent time can be generated by a level superposition mode based on a cascading multi-level power supply, but the bipolar excitation waveform is similar to a power supply based on a Marx circuit in defects;
although the load resonance type power supply can generate bipolar excitation by using a mature topological structure, the power supply operation is easily influenced by the change of the DBD load parameter, and the DBD load is difficult to ensure to be in an optimal working point for a long time.
In summary, the power supply applied to the DBD load at present has the problems that the number of components is large, the driving circuit is complex, the power supply running condition is easily influenced by the change of the DBD load parameter, the DBD load characteristic cannot be fully exerted, and the like.
Therefore, it is necessary to design a bipolar intermittent pulse power supply suitable for DBD loads.
Disclosure of Invention
The invention aims to solve the technical problem of providing a bipolar intermittent pulse power supply suitable for DBD loads, which is used for adapting to different DBD loads and fully playing the DBD load characteristics.
The technical proposal of the invention is as follows:
DC power supply E, resonant inductance L and first resonant capacitor C 1 A first winding of a transformer, a first switching tube Q 1 First diode D 1 A second resonance capacitor C 2 A second winding of the transformer, a second switching tube Q 2 Second diode D 2 Transformer tertiary winding and DBD load:
the positive electrode of the direct current power supply E is connected with the first end of the resonant inductor L;
the second end of the resonant inductor L and the first resonant capacitor C 1 A first end of the transformer first winding, a non-homonymous end of the transformer first winding, the second resonance capacitor C 2 Is connected with the same-name end of the second winding of the transformer;
the first resonance capacitor C 1 The second end of the first switch tube Q is the same as the first winding of the transformer 1 Is connected to the first end of the first diode D 1 Is connected with the cathode of the battery;
the first switch tube Q 1 And the second end of the first diode D 1 Is connected with the anode of the direct current power supply E and the second switch tube Q 2 Is connected to the second terminal of the second diode D 2 Is connected with the anode of the battery;
the second resonance capacitor C 2 Is not identical to the second winding of the transformer, and the second switch tube Q 2 Is connected to the first terminal of the second diode D 2 Is connected with the cathode of the battery;
the first end of the DBD load is connected with the non-homonymous end of the third winding of the transformer;
and the second end of the DBD load is connected with the same-name end of the third winding of the transformer.
Optionally, the first resonance capacitor C 1 And the second resonance capacitor C 2 Is identical to the parameters of the (a).
Optionally, parameters of the first winding of the transformer and the second winding of the transformer are consistent.
Optionally, the first switching tube Q 1 And a second switching tube Q 2 Is identical to the parameters of the (a).
Optionally, the first diode D 1 And a second diode D 2 Is identical to the parameters of the (a).
Optionally, the first switching tube Q 1 Second switching tube Q 2 Is smaller than the resonant frequency f 1 2, namely: f (f) 1 /2＞f
Optionally, the first switching tube Q 1 Second switching tube Q 2 Drive signal width T of (2) pulse Equal and drive width T pulse Is greater than the resonance period T 1 And/2 is smaller than the resonance period T 1 I.e.
T 1 /2＜T pulse ＜T 1
Optionally, the first switching tube Q 1 Is higher than the driving pulse of the second switch tube Q 2 Is advanced or retarded by half a cycle.
Optionally, the first switching tube Q 1 The second switch tube Q 2 Are IGBTs;
the first switch tube Q 1 Is connected with the first end of the second switch tube Q 2 The first ends of the first switching tubes Q are all collector electrodes of IGBT 1 Is connected with the second end of the second switch tube Q 2 The second terminals of (a) are all emitters of the IGBT.
Optionally, the memory is used for storing program codes and transmitting the program codes to the processor.
Optionally, the processor is configured to generate the switching tube Q according to instructions in the program code 1 ～Q 2 Is provided.
The beneficial effects are that:
compared with the prior art, the bipolar intermittent pulse power supply suitable for the DBD load has the advantages that:
(1) The bipolar excitation voltage generated by the power supply on the DBD load has steeper rising edges and falling edges, and the excitation voltage waveform contains idle time, so that the performance of the DBD load can be brought into play;
(2) The change of the electrical quantity of the power supply provided by the invention is mainly influenced by external parameters, so that the DBD load can be ensured to be in a good working state;
(3) The invention provides two switching tubes Q in a power supply 1 And Q 2 The same ground potential is provided, and a driving loop circuit is simple;
(4) The waveform of the resonant inductance current of the power supply provided by the invention is close to sine, so that the transformer can be fully utilized, and the transformer cannot have the magnetic bias problem due to the unique structure of the power supply;
(5) The power supply provided by the invention can work in a very wide frequency range by changing the numerical value of the external resonance inductance and the resonance capacitance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the prior art and the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a topological structure diagram of a bipolar intermittent pulse power supply suitable for DBD loads;
fig. 2 is an equivalent circuit diagram of the DBD load provided by the present invention;
fig. 3 is a schematic diagram of a working process of the bipolar intermittent pulse power supply suitable for DBD load in the working mode 1;
fig. 4 is a time domain equivalent circuit diagram of the bipolar intermittent pulse power supply suitable for DBD load in the working mode 1;
fig. 5 is a schematic diagram of a working process of the bipolar intermittent pulse power supply suitable for DBD load in the working mode 2;
fig. 6 is a schematic diagram of a working process of the bipolar intermittent pulse power supply suitable for DBD load in the working mode 3;
FIG. 7 is a simulated waveform diagram of a bipolar intermittent pulse power supply suitable for DBD load;
fig. 8 is an experimental work waveform diagram of a bipolar intermittent pulse power supply suitable for a DBD load.
Detailed Description
The invention will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown, for the purpose of illustrating the invention, but the scope of the invention is not limited to the specific embodiments.
Unless defined otherwise, all technical and scientific terms used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the scope of the present invention.
Examples:
the bipolar intermittent pulse power supply is suitable for DBD loads, is used for adapting to different DBD load characteristics, exerts the performances of different DBD loads and improves the power supply efficiency.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
For ease of understanding, please refer to fig. 1 and 2. FIG. 1 is a schematic diagram of a bipolar intermittent pulse power supply suitable for DBD load according to the present invention, including a DC power supply E, a resonant inductor L, and a first resonant capacitor C 1 A first winding of a transformer, a first switching tube Q 1 First diode D 1 A second resonance capacitor C 2 A second winding of the transformer, a second switching tube Q 2 Second diode D 2 FIG. 2 is an equivalent circuit diagram of the DBD load provided by the invention, including an equivalent capacitor C d Equivalent resistance R d Wherein fig. 1:
the positive electrode of the direct current power supply E is connected with the first end of the resonant inductor L;
the second end of the resonant inductor L and the first resonant capacitor C 1 A first end of the transformer first winding, a non-homonymous end of the transformer first winding, the second resonance capacitor C 2 Is connected with the same-name end of the second winding of the transformer;
the first resonance capacitor C 1 The second end of the first switch tube Q is the same as the first winding of the transformer 1 Is connected to the first end of the first diode D 1 Is connected with the cathode of the battery;
the first switch tube Q 1 And the second end of the first diode D 1 Is connected with the anode of the direct current power supply E and the second switch tube Q 2 Is connected to the second terminal of the second diode D 2 Is connected with the anode of the battery;
the second resonance capacitor C 2 Is not identical to the second winding of the transformer, and the second switch tube Q 2 Is connected to the first terminal of the second diode D 2 Is connected with the cathode of the battery;
the first end of the DBD load is connected with the non-homonymous end of the third winding of the transformer;
and the second end of the DBD load is connected with the same-name end of the third winding of the transformer.
The invention utilizes the principle of resonance of inductance and capacitance to realize the generation of bipolar pulse voltage with high rising rate and intermittent time on the DBD load. By adapting to different DBD load characteristics, the performance of different DBD loads is exerted, and the power supply efficiency is improved.
Specifically, the bipolar intermittent pulse power supply suitable for the DBD load provided by the invention has 4 working modes, and the working modes of the bipolar intermittent pulse power supply suitable for the DBD load provided by the invention are described below:
here is set a first switching tube Q 1 Second switching tube Q 2 The switching period of (1) is T, the first switching tube Q 1 And a second switching tube Q 2 The drive signal widths of (a) are equal. In addition, a first switching tube Q 1 Second switch tube Q 2 First diode D 1 Second diode D 2 Are considered ideal switching devices.
When the circuit works in a steady state, the bipolar intermittent pulse power supply suitable for the DBD load mainly has 4 working modes in one working period, and fig. 7 and 8 are simulation working waveform diagrams and experimental waveform diagrams of the bipolar intermittent pulse power supply suitable for the DBD load.
The bipolar intermittent pulse power supply suitable for the DBD load provided by the invention has the following working process:
working mode 1: t is t 0 ～t 1
At this time, as shown in fig. 3, fig. 3 is a schematic diagram of the working process of the bipolar intermittent pulse power supply suitable for DBD load in the working mode 1. When the power supply is in the working mode 1, the first switch tube Q 1 Or a first diode D 1 Turn on, second switch tube Q 2 And a second diode D 2 Off (solid line indicates a portion of the power supply circuit through which current flows, broken line indicates a portion of the power supply circuit through which no current flows, and the same applies to FIGS. 5 and 6 below), due to the first switching transistor Q 1 Or a first diode D 1 Opening to form a DC voltage source E, a resonant inductor L and a first resonant capacitor C 1 First switch tube Q 1 Or first oneDiode D 1 The resonant circuit is composed of a first winding of the transformer, a third winding of the transformer and a DBD load. The second winding of the transformer passes through a second resonance capacitor C 2 The capacitor charge-discharge loop is formed independently of the generation of the pulse excitation waveform of the DBD load, so only the first circuit loop is analyzed here. In the first switching tube Q 1 After being opened, the DC voltage source E, the resonant inductor L and the first resonant capacitor C are formed 1 First switch tube Q 1 And a resonant circuit formed by the DBD load, and a current i flowing through the resonant inductor L at the moment L And the voltage u across the DBD load DBD Gradually increasing from zero. When the resonant current i L When the value of (B) is changed from positive to negative, the first switch tube Q 1 Turn-off, first diode D 1 Opening to form a DC voltage source E, a resonant inductor L and a first resonant capacitor C 1 And with a first diode D 1 A resonant circuit formed at this time u DBD Gradually decreasing from a maximum value. When the resonant current i L When the value of (D) is changed from negative to zero, the first diode D 1 The switch-off and the working mode 1 are finished, and the mode duration is T 1 . In this stage, a positive polarity pulse excitation voltage is formed on the DBD load.
Working mode 2: t is t 1 ～t 2
At this time, as shown in fig. 5, fig. 5 is a schematic diagram of the working process of the bipolar intermittent pulse power supply suitable for DBD load in the working mode 2 according to the present invention. When the power supply is in the working mode 2, the first switch tube Q 1 And a first diode D 1 Turn off, the second switch tube Q 2 And a second diode D 2 Turn off due to the first switching tube Q 1 And a first diode D 1 Turn off, the second power Q 2 The trigger signal of (a) has not yet been reached, the current i flowing through the inductance L L At zero, the transformer respectively outputs the energy which is not completely released to the first resonant capacitor C through the first winding, the second winding and the third winding of the transformer 1 A second resonance capacitor C 2 And DBD load is released. When the second switch tube Q 2 The trigger signal of (2) comes, the working mode 2 ends, and the mode duration is T L 。
Working mode 3: t is t 2 ～t 3
At this time, as shown in fig. 6, fig. 6 is a schematic diagram of the working process of the bipolar intermittent pulse power supply suitable for DBD load in the working mode 3 according to the present invention. When the power supply is in the working mode 3, the first switch tube Q 1 And a first diode D 1 Turn off, the second switch tube Q 2 Or a second diode D 2 On due to the second switching tube Q 2 Or a second diode D 2 Opening to form a DC voltage source E, a resonant inductor L and a second resonant capacitor C 2 Second switch tube Q 2 Or a second diode D 2 The resonant circuit is composed of a transformer second winding, a transformer third winding and a DBD load. The first winding of the transformer passes through the first resonance capacitor C 1 The capacitor charge-discharge loop is formed independently of the generation of the pulse excitation waveform of the DBD load, so only the first circuit loop is analyzed here. In the second switching tube Q 2 After being opened, the DC voltage source E, the resonant inductor L and the second resonant capacitor C are formed 2 Second switch tube Q 2 And a resonant circuit formed by the DBD load, and a current i flowing through the inductor L at the moment L Gradually increasing from 0, the voltage u across the DBD load DBD Gradually decreasing from 0. When the resonant current i L When the value of (B) is changed from positive to negative, the second switch tube Q 2 Turn off, second diode D 2 Opening to form a DC voltage source E, a resonant inductor L and a second resonant capacitor C 2 And with a second diode D 2 A resonant circuit formed at this time u DBD Gradually rising from a minimum value. When the resonant current i L When the value of (D) is changed from negative to zero, the second diode D 2 The switch-off and the working mode 3 are finished, and the mode duration is T 1 . In this stage, a negative polarity pulse excitation voltage is formed on the DBD load.
Working mode 4: t is t 3 ～t 4
At this time, as shown in fig. 5, fig. 5 is a schematic diagram of the working process of the bipolar intermittent pulse power supply suitable for DBD load in the working mode 4. Power supply source is atIn the working mode 4, the first switch tube Q 1 And a first diode D 1 Turn off, the second switch tube Q 2 And a second diode D 2 Turn-off due to the second switching tube Q 2 And a second diode D 2 Turn off, the first switch tube Q 1 The trigger signal of (a) has not yet been reached, the current i flowing through the inductance L L At zero, the transformer respectively outputs the energy which is not completely released to the first resonant capacitor C through the first winding, the second winding and the third winding of the transformer 1 A second resonance capacitor C 2 And DBD load is released. When the first switch tube Q 1 The trigger signal of (4) comes, the working mode 4 ends, and the mode duration is T L 。
In order to analyze the operation condition of the loop, the electrical quantity of the loop needs to be analyzed, and only the power supply is analyzed in the working mode 1 and the working mode 2 due to the symmetry of the working waveform of the power supply.
In the working mode 1, the power supply is in the first switching tube Q 1 Or a first diode D 1 Opening to form a DC voltage source E, a resonant inductor L and a first resonant capacitor C 1 First switch tube Q 1 Or a first diode D 1 The resonant circuit is composed of a first winding of the transformer, a third winding of the transformer and a DBD load. Due to the DBD load equivalent resistance R d The value converted to the first winding side of the transformer and the leakage inductance L of the primary winding of the transformer r1 Are small, so neglecting the effect of both on the circuit, fig. 3 gives a complex frequency domain equivalent circuit diagram of the resonant circuit. In fig. 3, the capacitance C is the equivalent capacitance C of the DBD load d Is converted into a first winding side of the transformer and a first resonance capacitor C 1 The expression of the equivalent capacitance formed after parallel connection is that
C＝N 2 C d +C 1 (1)
Wherein N represents the transformation ratio of the third winding of the transformer to the first winding of the transformer to the second winding of the transformer.
The equivalent circuit satisfies in the frequency domain:
wherein U is C1 Is the first resonance capacitor C 1 Voltage, L m1 Exciting an inductor for a first winding of the transformer.
Solving to obtain:
wherein,,
because the excitation inductance of the first winding of the transformer is far greater than the resonance inductance L, there is +.>
The inverse Laplace transformation of (3) can be obtained:
deriving the second term of (4), and obtaining a first resonance capacitor C by using kirchhoff current law 1 Is the current i of (2) C1 And current i P1 The expression of (2) is:
the load voltage u is obtained from the second term of equation (4) and the second term of equation (5) DBD And load current i DBD The expression of (2) is:
constraint i at the end of the modality L (t 1 ) The first term available power supply of =0 substitution (4) isMode length T of working mode 1 1 ：
In the working mode 2, the power supply source is a first switching tube Q 1 And a first diode D 1 Turn off, the second switch tube Q 2 In the future of the trigger signal of (1) the current i flowing through the resonant inductance L L At zero, the transformer respectively outputs the energy which is not completely released to the first resonant capacitor C through the first winding, the second winding and the third winding of the transformer 1 A second resonance capacitor C 2 And DBD load is released. In this stage there are:
according to the electric quantity solving result of the working mode of the bipolar power supply of the DBD load, the steps of determining the parameters of the circuit elements and controlling the circuit topology are realized as follows, wherein reference numerals of the circuit elements are shown in fig. 1:
1. obtaining the equivalent capacitance Cd and the equivalent resistance R of the DBD load in an off-line mode d Determining the peak voltage U of the DBD load based on the consideration of the safety margin according to the limit voltage of the bearable voltage of the DBD load peak ；
2. Determining the value of E according to a generating circuit of a direct-current voltage source E;
3. according to the determined parameters (U peak E), calculating a transformer transformation ratio N, and selecting a proper transformer magnetic core material and a winding mode according to the transformer transformation ratio N;
4. according to the DBD load voltage rising rate, the switching frequency of the switching tube and i P1 、i P2 And inductor current i L Determination L, C 1 And C 2 Is a value of (2);
5. calculating the mode duration T of the working mode 1 and the working mode 3 according to the determined parameters 1 ；
6. According to T 1 Selecting a suitable interval time T L And pulse width T of drive signal pulse The duty cycle T of the obtained switching tube is 2 (T L +T 1 ) And a duty cycle D of T pulse /T；
In accordance with the design principles described above, a set of circuit typical parameters are given below:
direct current voltage source E:55V
Inductance L:5 muH;
capacitor C 1 ：1nF；
Capacitor C 2 ：1nF；
Transformer transformation ratio N:50;
DBD load equivalent capacitance C d ：38pF；
DBD load equivalent capacitance R d ：271Ω；
Switch tube Q 1 The driving signal frequency is 100kHz, and the duty ratio is 25%;
switch tube Q 2 Relative Q 1 The drive signal is lagging behind half a period, the drive signal frequency is 100kHz, and the duty cycle is 25%;
the circuit simulation waveforms and experimental waveforms under this set of parameters are shown in fig. 7 and 8.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A bipolar intermittent pulse power supply suitable for DBD loads, comprising: DC power supply E, resonant inductance L and first resonant capacitor C 1 A first winding of a transformer, a first switching tube Q 1 First diode D 1 A second resonance capacitor C 2 Second winding of transformerGroup, second switch tube Q 2 Second diode D 2 The third winding of the transformer and the DBD load;
the positive electrode of the direct current power supply E is connected with the first end of the resonant inductor L;
the second end of the resonant inductor L and the first resonant capacitor C 1 A first end of the transformer first winding, a non-homonymous end of the transformer first winding, the second resonance capacitor C 2 Is connected with the same-name end of the second winding of the transformer;
the first resonance capacitor C 1 The second end of the first switch tube Q is the same as the first winding of the transformer 1 Is connected to the first end of the first diode D 1 Is connected with the cathode of the battery;
the first switch tube Q 1 And the second end of the first diode D 1 Is connected with the anode of the direct current power supply E and the second switch tube Q 2 Is connected to the second terminal of the second diode D 2 Is connected with the anode of the battery;
the second resonance capacitor C 2 Is not identical to the second winding of the transformer, and the second switch tube Q 2 Is connected to the first terminal of the second diode D 2 Is connected with the cathode of the battery;
the first end of the DBD load is connected with the non-homonymous end of the third winding of the transformer;
and the second end of the DBD load is connected with the same-name end of the third winding of the transformer.
2. The bipolar intermittent pulse power source suitable for DBD load according to claim 1, wherein the first resonant capacitor C 1 And the second resonance capacitor C 2 Is identical to the parameters of the (a).
3. The bipolar intermittent pulsed power supply suitable for DBD loading of claim 2, wherein parameters of the transformer first winding and the transformer second winding are consistent.
4. The bipolar intermittent pulse power supply suitable for DBD load according to claim 3, wherein the first switching tube Q 1 And a second switching tube Q 2 Is identical to the parameters of the (a).
5. The bipolar intermittent pulse power source suitable for DBD load according to claim 4, wherein said first diode D 1 And a second diode D 2 Is identical to the parameters of the (a).
6. The bipolar intermittent pulse power supply suitable for DBD load according to claim 5, wherein the first switching tube Q 1 Second switching tube Q 2 Is smaller than the resonant frequency f 1 2, namely:
f 1 /2＞f
7. the bipolar intermittent pulse power supply suitable for DBD load according to claim 6, wherein the first switching tube Q 1 Second switching tube Q 2 Drive signal width T of (2) pulse Equal and drive width T pulse Is greater than the resonance period T 1 And/2 is smaller than the resonance period T 1 The method comprises the following steps:
T 1 /2＜T pulse ＜T 1
8. the bipolar intermittent pulse power supply suitable for DBD load according to claim 7, wherein the first switching tube Q 1 Is higher than the driving pulse of the second switch tube Q 2 Is advanced or retarded by half a cycle.
9. The bipolar intermittent pulse power source suitable for DBD load according to any one of claims 1-8, wherein the first switching tube Q 1 The second switch tube Q 2 Are all IGBT, wherein, the first switch tube Q 1 Is connected with the first end of the second switch tubeQ 2 The first ends of the first switching tubes Q are all collector electrodes of IGBT 1 Is connected with the second end of the second switch tube Q 2 The second terminals of (a) are all emitters of the IGBT.
10. The bipolar intermittent pulse power supply suitable for the DBD load is characterized by comprising a processor and a memory;
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is used for generating the switch tube Q according to instructions in the program code 1 ～Q 2 Is provided.
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| CN202310022920.2A CN116015094A (en) | 2023-01-08 | 2023-01-08 | Bipolar intermittent pulse power supply suitable for DBD load |
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| CN202310022920.2A CN116015094A (en) | 2023-01-08 | 2023-01-08 | Bipolar intermittent pulse power supply suitable for DBD load |
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