CN108322198A - A kind of control system and method for bipolar high-voltage pulse power source - Google Patents

A kind of control system and method for bipolar high-voltage pulse power source Download PDF

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Publication number
CN108322198A
CN108322198A CN201810138634.1A CN201810138634A CN108322198A CN 108322198 A CN108322198 A CN 108322198A CN 201810138634 A CN201810138634 A CN 201810138634A CN 108322198 A CN108322198 A CN 108322198A
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pulse
voltage
module
positive
negative pulse
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CN108322198B (en
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张小宁
刘颖
樊瑞
李晓焕
张军
屠震涛
向红丽
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Xi'an Ling Maple Source Electronic Technology Co Ltd
Xian Jiaotong University
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Xi'an Ling Maple Source Electronic Technology Co Ltd
Xian Jiaotong University
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
    • H03K5/24—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
    • H03K5/26—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being duration, interval, position, frequency, or sequence

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Plasma Technology (AREA)
  • Electronic Switches (AREA)

Abstract

The invention discloses a kind of control system of bipolar high-voltage pulse power source and methods, the present invention controls solid switch group mould switching sequence in the block by the control module in high-voltage positive pulses generation circuit and high voltage negative pulse generation circuit, and time interval, positive/negative pulse voltage, positive/negative pulse width, pulse frequency and the umber of pulse obtained in positive/negative pulse rise time and fall time, a cycle between positive pulse and negative pulse can be with the bipolar high-voltage pulse power source of flexible modulation.The Parameter adjustable bipolar pulse that the present invention realizes has very important meaning to the mechanism and application of studying nanosecond pulse discharge.

Description

A kind of control system and method for bipolar high-voltage pulse power source
Technical field
The invention belongs to bipolar pulses to regulate and control field, and in particular to a kind of control system of bipolar high-voltage pulse power source And method.
Background technology
The gas discharge of high-voltage pulse power source driving is in material science, energy and environment, biomedicine, military and space section Etc. fields have important and are widely applied foreground.It is sent out in the analog study to atmospheric pressure pulsating medium barrier discharge It is existing[1], in bipolar pulse discharge process, positive half period electric discharge is essentially identical with unipolar positive pulse, and failing edge is put for the second time Electricity is slightly below to discharge for the first time；Negative half-cycle electric discharge is different from unipolarity negative pulse, can occur in lower electric field, because Positive pulse, which discharges to exist between negative pulse discharge, to influence each other, and positive half period electric discharge generates a large amount of charged particle, negative half Periodic discharging, which is started without, to be completely disappeared so that the electron density of entire discharge space is very high, therefore need not be so high Negative voltage.
Domestic and international existing nanosecond pulse source is mainly adjustable in nanosecond pulse frequency and amplitude, can not make the upper of pulse The whole parameter such as liter/fall time, frequency, amplitude, duty ratio, umber of pulse and waveform shape is irrelevant controllable, load characteristic Matching is poor, makes the controlled difficulty of electric discharge result, it is difficult to the systematic flash-over characteristic and rule for obtaining nanosecond pulse discharge, to nanosecond The explanation of pulsed discharge mechanism is difficult to build consensus.For example in derived energy chemical field, clock and load matched are difficult, in aviation Space industry is unable to get continuous flowing and asthma flow control, in biomedical sector, can not be precisely controlled the work that electric discharge generates The dosage of property particle.Therefore, the nanosecond pulse source of Parameter adjustable has become nanosecond pulse discharge plasma in national defence and civilian neck Domain develops and the bottleneck of application.
[1] leaf changes atmospheric pressure pulsating medium barrier discharge analog study [D] Dalian University of Technology under needle plate electrodes, 2014.
Invention content
The purpose of the present invention is to provide a kind of control system of bipolar high-voltage pulse power source and methods, existing for solving There are the problem of technology, the present invention that can obtain positive pulse and negative arteries and veins in positive/negative pulse rise time and fall time, a cycle Time interval, positive/negative pulse voltage, positive/negative pulse width, pulse frequency and umber of pulse between punching can be with the double of flexible modulation Polarity high-voltage pulse power source.
In order to achieve the above objectives, the present invention adopts the following technical scheme that：
A kind of control system of bipolar high-voltage pulse power source, including the high-voltage positive pulses generation circuit and height that are connected in series with Press negative pulse generation circuit, wherein high-voltage positive pulses generation circuit is made of a series of high-voltage positive pulses modules, high voltage negative pulse Generation circuit is made of a series of high voltage negative pulse modules, and the high-voltage positive pulses module includes positive pulse control module, Zheng Mai Rush switch module and positive pulse energy-storage module, positive pulse control module is each switched by controlling in positive pulse switch module On or off determines positive pulse energy-storage module charge or discharge；The high voltage negative pulse module include negative pulse control module, Negative pulse switch module and negative pulse energy-storage module, negative pulse control module are each opened by controlling in negative pulse switch module The on or off of pass determines negative pulse energy-storage module charge or discharge；It is described generate bipolarity high-voltage pulse device further include High voltage direct current source module for providing high voltage direct current input to positive pulse energy-storage module and negative pulse energy-storage module, and high pressure It is mutually isolated between DC power supplier and positive pulse energy-storage module and negative pulse energy-storage module, and for being controlled to positive pulse Module, negative pulse control module, positive pulse switch module, negative pulse switch module and high voltage direct current source module provide work The low-voltage DC source module of voltage, further includes parameter input module, the parameter input module and positive pulse control module and Negative pulse control module connects, and the positive pulse control module and negative pulse control module are for adjusting bipolarity high-voltage pulse Parameter.
Further, a work period for generating bipolar pulse includes four-stage, is respectively：1. high-voltage positive pulses Module and high voltage negative pulse module are in charged state, circuit output zero level；2. high-voltage positive pulses module is in electric discharge shape State, high voltage negative pulse module are in charged state, circuit output high-voltage positive pulses；3. high-voltage positive pulses module and high voltage negative pulse Module is in charged state, circuit output zero level；4. high voltage negative pulse module is in discharge condition, high-voltage positive pulses module In charged state, circuit output high voltage negative pulse；The four-stage can be combined arbitrarily, still, the stage 2. and 4. between Must at least interval stage 1. or the stage 3., control the stage 2. and the stage 4. between the time length, a week can be adjusted Time interval in phase between positive pulse and negative pulse.
Further, the parameter of bipolarity high-voltage pulse include the frequency of bipolarity high-voltage pulse, positive/negative pulse width, The rise time and fall time of time interval, positive/negative pulse in a cycle between positive pulse and negative pulse, positive/negative arteries and veins The voltage magnitude of punching and the umber of pulse of output, and the parameter of bipolarity high-voltage pulse can continuously adjust.
Further, the adjusting method of the rise time and fall time of positive pulse is specially：Positive pulse control module root According to the rise time and fall time parameter of the positive pulse of parameter input module input, specific positive pulse control signal, h are generated The positive pulse control module of grade high-voltage positive pulses generation circuit is to h group of switches at the beginning of different turn-on and turn-off Between, duration and end time, wherein h=1,2,3,4 ..., 2m-1, h switching group sequentially turn on or closed by certain sequential It is disconnected, obtain the positive pulse with different rise time and fall time；
The adjusting method of the rise time and fall time of negative pulse is specially：Negative pulse control module is inputted according to parameter The rise time and fall time parameter of the negative pulse of module input, generates specific negative pulse control signal, and j grades of high pressures bear arteries and veins Rush the negative pulse control module of generation circuit to j group of switches at the beginning of different turn-on and turn-off, the duration And end time, wherein j=1,2,3,4 ..., 2m-1, and h+j=2m, j switching groups are sequentially turned on or are closed by certain sequential It is disconnected, obtain the negative pulse with different rise time and fall time.
Further, the adjusting method of the voltage magnitude of positive pulse is specially：In plus high-pressure DC power supply, positive pulse The voltage magnitude for the positive pulse that control module is inputted according to parameter input module generates specific control signal, controls high voltage direct current Power module exports certain voltage, reaches the voltage magnitude needed for positive pulse；
The adjusting method of the voltage magnitude of negative pulse is specially：In plus high-pressure DC power supply, negative pulse control module Specific control signal is generated according to the voltage magnitude of the negative pulse of parameter input module input, controls high voltage direct current source module Certain voltage is exported, the voltage magnitude needed for negative pulse is reached.
Further, the adjusting method of the frequency of bipolarity high-voltage pulse is：Positive pulse control module and negative pulse control The bipolar pulse frequency that module is inputted according to parameter input module generates the control signal of different frequency, controls high pressure respectively Switching group in positive pulse generation circuit and high voltage negative pulse generation circuit makes bipolarity high-voltage pulse be held according to specific frequency It is continuous to generate.
Further, the adjusting method of positive pulse width is：In high-voltage positive pulses generation circuit, the switch of all working After group is all fully on, identical turn-on time is maintained, then start to turn off in a certain order, makes high-voltage positive pulses that there is institute The pulse width needed；
The adjusting method of negative pulse width is：In high voltage negative pulse generation circuit, the switching group of all working is all complete After conducting, identical turn-on time is maintained, then starts to turn off in a certain order, it is required to make high voltage negative pulse have Pulse width.
Further, the adjusting method of the umber of pulse of output is specially：If parameter input module is provided with determining arteries and veins Number is rushed, when the counter in positive pulse control module and negative pulse control module is counted to target pulse number, positive pulse control Module and negative pulse control module control high-voltage positive pulses generation circuit respectively and high voltage negative pulse generation circuit stops generating arteries and veins Punching, to the umber of pulse needed for output；If umber of pulse is not arranged for parameter input module, or the umber of pulse of setting is more than to allow Range, circuit then exports infinite multiple pulses.
Further, the voltage magnitude of positive pulse width, the rise time and fall time of positive pulse and positive pulse is logical It crosses positive pulse control module and changes in positive pulse switch module the working condition that switchs to adjust；Negative pulse width, negative pulse The voltage magnitude of rise time and fall time and negative pulse is changed by negative pulse control module in negative pulse switch module The working condition of switch is adjusted.
Further, positive pulse control module and negative pulse control module are field programmable gate array, special collection At circuit, Complex Programmable Logic Devices, microcontroller, digital signal processing chip, arm processor or computer.
Compared with prior art, the present invention has technique effect beneficial below：
The control system and method for bipolar high-voltage pulse power source according to the present invention, the solid switch mould per level-one Block can be controlled individually, when accurately controlling and compensate the turn-on and turn-off between MOSFET element by programmable control module Between difference, and MOSFET not at the same level switching sequence, it can be achieved that exporting positive/negative pulse rise/fall time and a week Time interval, positive/negative pulse voltage, positive/negative pulse width, pulse frequency in phase between positive pulse and negative pulse and umber of pulse Etc. other parameters continuously adjust and the safe and reliable work of circuit, meet needed for different pulsed discharges research.
It can be used in carrying out discharge mechanism, flash-over characteristic and other application in addition, the present invention obtains accurately impulse waveform Basic research.Different researchers can compare carrying out the result of study obtained when similar research, can greatly facilitate air Press pulse plasma discharge mechanism and application study.The clock that positive negative pulse stuffing alternately exports discharges in pulse plasma and studies In, be conducive to find the new phenomenon of some pulsed discharges, new features and new rule.
Description of the drawings
Fig. 1 is bipolar high-voltage pulse power source control method flow chart proposed by the present invention；
Fig. 2 is whole adjustable parameter schematic diagrames of bipolarity high-voltage pulse in the present invention；
Fig. 3 is a kind of device that may be implemented of the bipolar high-voltage pulse power source in the present invention；
Fig. 4 is in high-voltage positive pulses generation circuit, and part high-end switch is in the conduction state, and time started interval is connected The switching group working timing figure of grayscales uneven distribution；
Fig. 5 is in high-voltage positive pulses generation circuit, and whole high-end switch are in the conduction state, and time started interval is connected The switching group working timing figure evenly distributed；
Fig. 6 is in high voltage negative pulse generation circuit, and part low-end switch is in the conduction state, and time started interval is connected The switching group working timing figure of grayscales uneven distribution；
Fig. 7 is in high voltage negative pulse generation circuit, and whole low-end switch are in the conduction state, and time started interval is connected The switching group working timing figure evenly distributed；
Fig. 8 is in high-voltage positive pulses generation circuit, and part high-end switch is off state, and turns off time started interval It is spaced the switching group working timing figure of grayscales uneven distribution；
Fig. 9 is in high-voltage positive pulses generation circuit, and whole high-end switch are off state, and turn off time started interval It is spaced the switching group working timing figure evenly distributed；
Figure 10 is in high voltage negative pulse generation circuit, and part low-end switch is off state, and between the shutdown time started Switching group working timing figure of the compartment every grayscales uneven distribution；
Figure 11 is in high voltage negative pulse generation circuit, and whole low-end switch are off state, and between the shutdown time started Compartment is every the switching group working timing figure evenly distributed.
Specific implementation mode
Present invention is further described in detail below in conjunction with the accompanying drawings：
Referring to Fig. 1 to Fig. 3, a kind of control system of bipolar high-voltage pulse power source, including the high positive pressure arteries and veins that is connected in series with Rush generation circuit and high voltage negative pulse generation circuit, wherein high-voltage positive pulses generation circuit is by a series of high-voltage positive pulses modules Composition, high voltage negative pulse generation circuit are made of a series of high voltage negative pulse modules, and the high-voltage positive pulses module includes positive arteries and veins Control module, positive pulse switch module and positive pulse energy-storage module are rushed, positive pulse control module is switched by controlling positive pulse The on or off each switched in module determines positive pulse energy-storage module charge or discharge；The high voltage negative pulse module includes Negative pulse control module, negative pulse switch module and negative pulse energy-storage module, negative pulse control module is by controlling negative pulse The on or off each switched in switch module determines negative pulse energy-storage module charge or discharge；The generation bipolarity high pressure The device of pulse further includes the high straightening for providing high voltage direct current input to positive pulse energy-storage module and negative pulse energy-storage module Galvanic electricity source module, and it is mutually isolated between high voltage direct current source module and positive pulse energy-storage module and negative pulse energy-storage module, with And for positive pulse control module, negative pulse control module, positive pulse switch module, negative pulse switch module and high straightening Galvanic electricity source module provides the low-voltage DC source module of operating voltage, further includes parameter input module, the parameter input module It is connect with positive pulse control module and negative pulse control module, the positive pulse control module and negative pulse control module are for adjusting Save the parameter of bipolarity high-voltage pulse.
It is shown in Figure 2, according to the control system and method for bipolar high-voltage pulse power source shown in the present invention, Neng Goushi Include now time interval in positive/negative pulse rise time and fall time, a cycle between positive pulse and negative pulse, just/ The whole of the parameters such as negative pulse voltage, positive/negative pulse width, pulse frequency and umber of pulse is continuously or discontinuously adjustable.
The positive pulse switch module includes h grades of switching groups, and negative pulse switch module includes j grades of switching groups, and h >=1, j >=1, h+j=2m, 2m grades of switching groups, which suspend, to be cascaded, and every grade of switching group includes high-end solid-state switch KaiWith low side solid-state switch Kbi Wherein, the high-end solid-state switch K of i=1,2 ..., 2maiWith low side solid-state switch KbiThe node of connection is the high pressure of every grade of switching group Vout is exported, the ground terminal GND of every grade of switching group is low side solid-state switch KbiThe other end, the power end Vp of every grade of switching group is height Hold solid-state switch KaiThe other end, in high-voltage positive pulses generation circuit, high level-one switching group SWh+1Ground terminal GND and low level-one Switching group SWhPower output end Vout be connected directly, wherein h=1,2,3 ..., 2m；In high voltage negative pulse generation circuit, High level-one switching group SWj+1Power end Vp and low level-one switching group SWjPower output end Vout be connected directly, wherein j=1, 2,3 ..., 2m, and h ≠ j, high-end solid-state switch KaiFor a switch or multiple switch, and between multiple switch in parallel or series Connection；Low side solid-state switch KbiIt for a switch or multiple switch, and is connected in parallel or series between multiple switch, every grade of switch The high-end solid-state switch K of groupaiWith low side solid-state switch KbiIt can simultaneously close off, but cannot simultaneously turn on.
The first half of bipolarity high-voltage pulse generation circuit is made of high-voltage positive pulses module, and latter half is born by high pressure Pulse module forms；Or the first half of bipolarity high-voltage pulse generation circuit is made of high voltage negative pulse module, latter half It is made of high-voltage positive pulses module；Or bipolarity high-voltage pulse generation circuit is by high-voltage positive pulses module and high voltage negative pulse module Arbitrary staggeredly cascade composition, i.e. every level-one of bipolarity high-voltage pulse generation circuit are high-voltage positive pulses module or high voltage negative pulse Module, still, it is different module, high voltage direct current source module and positive pulse energy storage that at least level-one, which must be with other grades, Isolation is carried out by transformer between module and negative pulse energy-storage module or is isolated by one way conducting device；When using single When being isolated to conduction device, in high-voltage positive pulses generation circuit, one way conducting device is connected to high-voltage DC power supply mould Between high-end and positive pulse energy-storage module the input of output of block is high-end；In high voltage negative pulse generation circuit, one-way conduction device Part is connected between output low side and the input low side of negative pulse energy-storage module of high voltage direct current source module.
A kind of control method of bipolar high-voltage pulse power source realizes that the key device of this method is, parameter input module, Control module, solid switch group module and high voltage direct current source module.Control module is according to the bipolar pulse parameter of input, production Raw corresponding control signal, controls each switch in solid switch group, realizes the adjusting to bipolar pulse parameter, pass through Control realizes output bipolarity high-voltage pulse with the working condition of each switch in the cascade solid switch group module of suspended pattern The adjusting of waveform parameter.Wherein, bipolarity high voltage pulse waveform parameter includes the frequency of bipolarity high-voltage pulse, positive/negative pulse The rise time of time interval, positive/negative pulse in width (duty ratio), a cycle between positive pulse and negative pulse and decline Time, positive/negative pulse width and output umber of pulse etc., the above parameter can be adjusted within the allowable range with a fixed step size, bipolar Property high-voltage pulse in, positive pulse waveform parameter can pass through control module change high-voltage positive pulses generation circuit on off state To adjust；The parameter of negative pulse waveform can change the on off state in high voltage negative pulse generation circuit to adjust by control module Section, control method proposed by the present invention can control the bipolarity high-voltage pulse generation circuit of different structure, such as should The structure of bipolarity high-voltage pulse circuit can be that preceding part is made of high-voltage positive pulses generation circuit, and arteries and veins is born in rear part by high pressure Rush generation circuit composition；Can be that preceding part is made of high voltage negative pulse generation circuit, rear part generates electricity by high-voltage positive pulses Road forms.It can also be that high-voltage positive pulses generation circuit and the arbitrary of high voltage negative pulse generation circuit staggeredly cascade, generate control The control module of signal can be field programmable gate array (FPGA), application-specific integrated circuit (ASIC), complex programmable Logical device (CPLD), microcontroller, digital signal processing chip (DSP), arm processor, computer etc., solid switch group module In each switch have its fixed control terminal, by receiving the control signal that sends out of control module, switch enters corresponding Working condition, the control signal received by solid switch group module can be periodic, can also be acyclic； It can be that partial period is periodic, can also be that partial period is acyclic.
Control module controls the high-end switch K in each switching groupaiWith low-end switch KbiIt can simultaneously turn off, still It cannot simultaneously turn on, under the control of control module, between solid switch group mould switching group in the block, can there is different conductings With shutdown time started, duration and end time, it is possibility to have at the beginning of identical turn-on and turn-off, the duration And the end time, realize the control to each switch work schedule.Wherein, the switch of first conducting can be first pass It is disconnected, it may not be first shutdown.
One work period of bipolar pulse can be divided into four working stages, be respectively：1. high-voltage positive pulses module and High voltage negative pulse module is in charged state；2. high-voltage positive pulses module is in discharge condition, high voltage negative pulse module is in Charged state；3. high-voltage positive pulses module and high voltage negative pulse module are in charged state；4. high voltage negative pulse module is in Discharge condition, high-voltage positive pulses module are in charged state.This four-stage can in any combination, still, the stage 2. and 4. it Between must at least be spaced the stage of a high-voltage positive pulses module and high voltage negative pulse module all in charging.When controlling the stage Between length, the time interval between positive pulse and negative pulse in a cycle can be adjusted.In different cycles, positive pulse and Time interval between negative pulse can be identical, can also be different.
Control module generates specific positive pulse control according to the rise time and fall time parameter of the positive pulse of setting Signal, the control module of h grades of (h=1,2,3,4 ..., 2m-1) high-voltage positive pulses generation circuits is to h group of switches with different At the beginning of turn-on and turn-off, duration and end time, h switching group sequentially turn on or turned off by certain sequential, obtained To the positive pulse with different rise time and fall time.The rise time and fall time of positive pulse can with a fixed step size It adjusts；Control module generates specific negative pulse control letter according to the rise time and fall time parameter of the negative pulse of setting Number, the control module of j grades of (j=1,2,3,4 ..., 2m-1, wherein h+j=2m) high voltage negative pulse generation circuits is to j switching group At the beginning of distributing different turn-on and turn-off, duration and end time, j switching group sequentially turn on by certain sequential Or shutdown, obtain the negative pulse with different rise time and fall time.The rise time and fall time of negative pulse be with One fixed step size is adjustable.Wherein, the rise time and fall time of positive pulse and negative pulse can be identical, can also be not It is identical.
Generating positive pulse rising edge and when failing edge, h high-voltage positive pulses module can all in the working stage that discharges, Electric discharge working stage can also be only partially in；The Delay distribution side of the rising and falling time of each high-voltage positive pulses module Formula can be evenly distributed, and can also be grayscales uneven distribution；When generating the rising edge and failing edge of negative pulse, j high pressure is negative Pulse module can also can only be partially in electric discharge working stage all in electric discharge working stage；Each high voltage negative pulse The Delay distribution mode of the rising and falling time of module can be evenly distributed, and can also be grayscales uneven distribution.
In plus high-pressure DC power supply, positive pulse control module generates specific according to the voltage magnitude of required positive pulse Signal is controlled, each switching group is controlled and generates certain voltage, each positive pulse switching group reaches positive pulse institute by superposition The voltage magnitude needed.The voltage magnitude of positive pulse is continuously adjustable.When adding DC high-voltage power supply outside, negative pulse control module Specific control signal is generated according to the voltage magnitude of required negative pulse, each switching group is controlled and generates certain voltage, respectively A negative pulse switching group reaches the voltage magnitude needed for negative pulse by superposition.The voltage magnitude of negative pulse is continuously adjustable. The voltage magnitude of positive pulse and negative pulse can be identical, can also be different.
When generating the positive pulse of certain voltage amplitude, h high-voltage positive pulses module can all in the working stage that discharges, Electric discharge working stage can also be only partially in；The method of salary distribution of the voltage magnitude parameter of each high-voltage positive pulses module can be with It evenly distributes, can also be grayscales uneven distribution；When generating the negative pulse of certain voltage amplitude, j high voltage negative pulse module can All in electric discharge working stage, can also only be partially in electric discharge working stage；The voltage of each high voltage negative pulse module The method of salary distribution of magnitude parameters can evenly distribute, and can also be grayscales uneven distribution.
Control module generates the control signal of different frequency according to required bipolar pulse frequency, controls high positive pressure arteries and veins The switching group in generation circuit and high voltage negative pulse generation circuit is rushed, can be periodically turn-on and turn-off, it can also right and wrong Periodic turn-on and turn-off can also be the turn-on and turn-off with arbitrary time span, to make bipolarity high-voltage pulse by It is persistently generated according to specific frequency.Frequency is adjustable with a fixed step size within the allowable range.
In high-voltage positive pulses generation circuit, after the switching group of all working is all fully on, when maintaining identical conducting Between, then start to turn off in a certain order, it can make high-voltage positive pulses that there is required pulse width.The width of positive pulse exists It is adjustable with a fixed step size in a certain range.In high voltage negative pulse generation circuit, the switching group of all working is all led completely After logical, identical turn-on time is maintained, then start to turn off in a certain order, to make high voltage negative pulse that there is required arteries and veins Rush width.The width of negative pulse is adjustable with a fixed step size in a certain range.
Control module can generate periodically control signal according to the parameter of setting, and control switch module carries out periodically Turn-on and turn-off, export periodic bipolarity high-voltage pulse；If determining umber of pulse is provided with, when in control module When counter counts are to target pulse number, control module can control high-voltage positive pulses generation circuit and high voltage negative pulse generation circuit stops Pulse is only generated, to the umber of pulse needed for output.If being not provided with umber of pulse, or the umber of pulse of setting is more than to allow Range, circuit can export infinite multiple pulses.
The implementation process of the present invention is described in detail below：
The present invention relates to a kind of control methods of bipolar high-voltage pulse power source, are controlled in switch module by control module It initial time, duration and the end time of each switch conduction and shutdown, realizes and bipolarity high voltage pulse waveform is joined Several adjustings.The parameter of bipolarity high-voltage pulse, the rise time and fall time, frequency of such as positive/negative pulse, positive/negative pulse Time interval, positive/negative pulse voltage amplitude and output in width (duty ratio), a cycle between positive pulse and negative pulse Umber of pulse etc. is all controlled by the control signal that control module generates, and the bipolar of required characteristic parameter is exported eventually by high-tension circuit Property high voltage pulse waveform, as shown in Figure 1, the first step, inputted in parameter input module needed for bipolar pulse waveform each ginseng It counts, second step, the control module in high-voltage positive pulses generation circuit is to the parameters about positive pulse in parameter input module Corresponding control signal is analyzed and is generated, there are one control terminals for receiving this for each switch in solid switch group Control signal.Control signal makes each of solid switch group switch according to certain sequential turn-on and turn-off；High voltage negative pulse Control module in generation circuit is analyzed the parameters about negative pulse in parameter input module and is generated corresponding Signal is controlled, there are one control terminals for each switch in solid switch group for receiving the control signal, and controlling signal makes Each of solid switch group is switched according to certain sequential turn-on and turn-off.Third walks, high voltage direct current source module pair with it is solid The energy-storing capacitor module of body switching group parallel connection charges.Finally, voltage superposition of the high-voltage pulse circuit per level-one, it is defeated in afterbody Go out the bipolar pulse of required waveform parameter feature.
Bipolar high-voltage pulse power source of the present invention is mainly produced by high-voltage positive pulses generation circuit and high voltage negative pulse Raw circuit composition.High-voltage positive pulses generation circuit (total h grades, h=1,2,3 ..., 2m-1) and high voltage negative pulse generation circuit (total j Grade, j=1,2,3 ..., 2m-1 and h+j=2m) (m=1,2,3,4 ..., 500) 2m grades total, this 2m grades of circuit, which passes through to suspend, to be cascaded Mode link together.The detailed process of heretofore described bipolar high-voltage pulse power source control method is to pass through ginseng The waveform parameter of number input module input high-voltage positive pulses/negative pulse, control module generate certain control according to the parameter of input Signal (the total roads 2m) processed, per level-one high-voltage positive pulses generation circuit and in high voltage negative pulse generation circuit, there are one solid switches Group, there are one control terminals for each switch in solid switch group, for receiving control signal.It is every by controlling to control signal The working condition of one solid switch group determines the charging and discharging state of the storage capacitor in parallel with switching group.When storage capacitor is in When charged state, the output of this grade of circuit is zero level；Otherwise, if this grade of circuit is high-voltage positive pulses generation circuit, the grade Circuit output positive high voltage；If this grade of circuit is high voltage negative pulse generation circuit, this grade of circuit output negative high voltage.2m grades of circuits Output voltage is superimposed the bipolar pulse that can generate required waveform feature parameter.
Control method of the present invention can be by control module, and the on off state changed in positive pulse generation circuit comes Adjust the waveform parameter of positive pulse；The on off state in negative pulse generation circuit can also be changed by control module to adjust The waveform parameter of negative pulse.Control method of the present invention is flexible, can get the bipolarity high voltage pulse waveform of whole Parameter adjustable.
The output of bipolar pulsed power supply is realized by the cooperation of control module and solid switch group module.The present invention is with Fig. 3 Shown in illustrate for bipolarity high-voltage pulse circuit.Bipolarity high-voltage pulse electric shown in Fig. 3 route m grades high positive pressure arteries and veins Rush generation circuit and m grades of high voltage negative pulse generation circuit compositions.2m solid switch group in circuit, which suspends, to be cascaded, high voltage direct current The power supply pair storage capacitor charging in parallel with each switching group, the turn-on and turn-off decision of each switching group are in parallel with switching group The charging and discharging state of storage capacitor.When storage capacitor is in charged state, the output of this grade of circuit is zero level；When energy storage electricity When holding in non-charged state, if this grade of circuit is high-voltage positive pulses generation circuit, this grade of circuit output positive high voltage；If the grade Circuit is high voltage negative pulse generation circuit, then this grade of circuit output negative high voltage.Working condition by controlling each switch can The high-voltage bipolar pulse of control circuit final output.
In control method of the present invention, the parameters of positive pulse waveform can pass through height in bipolarity high-voltage pulse Control module in positive pressure pulse-generating circuit changes the state to inductive switch to adjust.In bipolarity high-voltage pulse, negative pulse The parameters of waveform can change the state to inductive switch to adjust by the control module in high voltage negative pulse generation circuit. Wherein, controlling the signal of 2m solid switch group switching sequence can be cyclical signal, can also be non-periodic signals；It can Can also be part non-periodic signals to be part periodic signal.Therefore, the bipolarity high-voltage pulse of output can be week The bipolarity high-voltage pulse of phase property can also be acyclic bipolarity high-voltage pulse；It can be the bipolarity of finite number High-voltage pulse can also be the high-voltage pulse of limitless number.
It is illustrated below with specific example：
A kind of flow of the control method of bipolar high-voltage pulse power source is as shown in Figure 1.Parameter input module is for being arranged Bipolar pulse parameter, as between the time in positive/negative rising edge of a pulse and failing edge, a cycle between positive pulse and negative pulse Every, positive/negative pulse voltage, positive/negative pulse width, pulse frequency and umber of pulse etc..Parameters are sent to by parameter input module The control module of power supply, the control module in high-voltage positive pulses generation circuit generate corresponding according to the parameter of the positive pulse of feeding Signal is controlled, the control module in high voltage negative pulse generation circuit generates corresponding control letter according to the parameter of the negative pulse of feeding Number, at the beginning of the turn-on and turn-off that each in control signal control solid switch group module switchs, duration and knot The beam time.The on or off state of driving of the high-voltage DC power supply as solid switch group, each group of switch determines this The output superposition of the High voltage output of grade circuit, 2m grades of circuits generates the bipolar pulse of required waveform parameter feature.In the following, exchanging The detailed process of section bipolarity high-voltage pulse parameters illustrates.The title of the parameter or variable that may use is as follows：
The total quantity of solid switch group and its way 2m (m=2,3 ..., 500) of corresponding control signal；
2m solid switch group is respectively SW1, SW2..., SWi(i=1,2,3,4 ... ..., 1000)
The series of high-voltage positive pulses generation circuit and its way m (m=2,3 ..., 500) of corresponding control signal；
The series of high voltage negative pulse generation circuit and its way m (m=2,3 ..., 500) of corresponding control signal；
The intrinsic conducting delay t each switched in solid switch group module1；
The intrinsic shutdown delay t each switched in solid switch group module2；
Export positive pulse rising edge parameter Tp1；
Export positive pulse failing edge parameter Tp2；
Export negative pulse rising edge parameter Tn1；
Export negative pulse failing edge parameter Tn2；
Switching group begins to turn on or begins to turn off delay parameter tx (delay evenly distributes), txi (non-homogeneous point of delays Match；I=1,2,3,4 ... ..., 1000)；
The positive pulse width parameter of output is tp0；
The negative pulse width parameter of output is tn0；
The frequency of periodic bipolar pulse is f；
Time interval in a cycle between positive pulse and negative pulse is tg。
The total roads 2m of control signal that control module generates in the present invention, control signal is respectively G1, G2..., G2m, right respectively Solid switch group mould each switching group in the block carries out state modulator and distribution.Here control signal can be include bipolar The single control signal of property pulse whole parameter information, can also be to be respectively provided with parameters information in a pulse period A series of summation of control signals.Control the working condition that each in signal control solid switch group switchs, the same switch The high-end switch K of group the insideaWith low-end switch KbIt can simultaneously turn off, but cannot simultaneously turn on.In practical applications, each Switch is not ideal, and turn-on and turn-off are not that moment completes and the parameters of each switch can not possibly be complete Identical, the switch used in the present invention is same switch, it is assumed that the conducting delay of switch is a constant t1, switch Shutdown delay be a constant t2, it is assumed that all switches in solid switch group are connected when controlling signal and being high level, low Switch OFF when level, that is to say, that as control signal G1, G2..., G2mFor high level when, solid-state switch group mould is in the block high-end Switch Ka1, Ka2..., Ka2mConducting, corresponding low-end switch Kb1, Kb2..., Kb2mShutdown；As control signal G1, G2..., G2mFor When low level, solid-state switch group mould high-end switch K in the blocka1, Ka2..., Ka2mShutdown, corresponding low-end switch Kb1, Kb2..., Kb2mConducting.
Bipolar high-voltage pulse power source of the present invention, every level-one switching group in high-voltage positive pulses generation circuit is in height End switch is connected, and when low-end switch turns off, exports positive pulse；When high-end switch turns off, and low-end switch is connected, high-voltage positive pulses Generation circuit is in charged state.Every level-one switching group in high voltage negative pulse generation circuit is connected in low-end switch, high-end to open When shutdown, negative pulse is exported；When low-end switch turns off, and high-end switch is connected, negative pulse circuit is in charged state.Under In mask body embodiment, due to the high-end switch K in each switching groupaWith low-end switch KbControl signal be reverse phase, so In order to illustrate conveniently, the work schedule of high-end switch or the work schedule of low-end switch are only gived in embodiment.
Regulation and control to high-voltage positive pulses and high voltage negative pulse rise time and fall time parameter, actually to switching group The control of sequential is connected in module.Fig. 4 is that part high-end switch is in the conduction state in high-voltage positive pulses generation circuit, and conducting is opened Beginning time interval grayscales uneven distribution, corresponding each switching group working timing figure.The rise time that positive pulse is arranged is Tp1(Tp1 >=t1), in control method as shown in Figure 4, only part (u grades of switching groups, u≤m) is in m grades of positive pulse generation circuits For generating positive pulse, i.e. control module will be delayed T the rise time working conditionp1This u switching group module is distributed to, is passed through The delay of tx1, the high-end switch K of first switching groupa1It starts to open at, conducting delay is t1, i.e., the K after the tx1+t1 timesa1 It is fully on.The high-end switch K of first switching groupa1It is opened by the delay of tx2, second the high-end of switching group after starting to open at Close Ka2It starts to open at, turn-on time t1, i.e., the high-end switch K of second switching group after the tx1+tx2+t1 timesa2Completely Conducting.And so on, from the high-end switch K of first switching groupa1It begins to turn on, to the high-end switch K of u-th of switching groupau Start to open at and pass through time t1 it is fully on when, the time used is the rise time T of positive pulsep1, i.e. Tp1=tx1+ tx2+……+txu+t1.The u+1 of circuit, u+2 ..., the high-end switch K of ma(u+1), Ka(u+2)..., KamOperation level upper It is always zero level to state whole process, the m+1 of circuit, m+2 ..., the high-end switch K in 2m grades of circuitsa(m+1), Ka(m+2)..., Ka2mIt is begun to turn at the t=0 moment, i.e., negative pulse generation circuit is completely in charged state, exports zero level.
As shown in figure 5, when generating the rising edge of positive pulse, the high-end switch K in high-voltage positive pulses generation circuita1, Ka2..., KamIt can be completely in conducting state, and time started compartment is connected is divided into and evenly distribute.High-voltage positive pulses produce Raw circuit is m grades total, as the high-end switch K of first switching group of t=0 momenta1It starts to open at, second switch after the tx that is delayed The high-end switch K of groupa2It starts to open at, using delay tx, the high-end switch K of third switching groupa3It starts to open at, successively class It pushes away, after time t=(m-1) * tx+t1 times, all solids switching group mould height in the block in high-voltage positive pulses generation circuit End switch is fully on.If meeting (m-1) * tx+t1=Tp1, (wherein Tp1≥t1) it can then realize that the positive pulse of setting rises Time.The m+1 of circuit, m+2 ..., the high-end switch K in 2m grades of circuitsa(m+1), Ka(m+2)..., Ka2mStart at the t=0 moment Conducting, i.e. negative pulse generation circuit are completely in charged state, export zero level.
The rise time parameter of high voltage negative pulse adjust and the Principles of Regulation of the rise time parameter of positive pulse be it is identical, Can be the low-end switch K in high voltage negative pulse generation circuitb(m+1), Kb(m+2)..., Kb2mIt is partially in conducting state, and is connected Time started interval grayscales uneven distribution.As shown in fig. 6, the setting negative pulse rise time is Tn1, in m grades of negative pulse generation circuits only There is part (v grades of switching groups, v≤m) in running order, control module is by rise time Tn1This v switching group module is distributed to, By the delay of tx1, the first order of negative pulse generation circuit, i.e., the low-end switch K of m+1 grades circuitsb(m+1)It starts to open at, leads Logical delay is t1, i.e., the low-end switch K of m+1 grades of circuits after the tx1+t1 timesb(m+1)It is fully on.M+1 grades of circuits Low-end switch Kb(m+1)By the delay of tx2, the low-end switch K of m+2 grades of circuits after starting to open atb(m+2)It starts to open at, is connected Time is t1, i.e., the low-end switch K of m+2 grades of circuits after the tx1+tx2+t1 timesb(m+2)It is fully on.And so on, from The low-end switch K of first switching group of negative pulse generation circuitb(m+1)It begins to turn on, v-th to negative pulse generation circuit is opened The low-end switch K of pass groupb(m+v)When also beginning to opening and process time t1 fully on, the time used is the upper of negative pulse Rise time Tn1, i.e. Tn1=tx1+tx2+ ...+txv+t1.The 1st, 2 of circuit ..., the low-end switch K of mb1, Kb2..., Kbm's Operation level is always high level in above-mentioned whole process, the m+v+1 of circuit, m+v+2 ..., and the low side in 2m grades of circuits is opened Close Kb(m+v+1), Kb(m+v+2)..., Kb2mIt is always low level in whole process operation level, i.e., that is high-voltage positive pulses generate Circuit is in charged state, does not export positive pulse.
As shown in fig. 7, when generating the rise time of negative pulse, the low side in high voltage negative pulse generation circuit can also be Switch Kb(m+1), Kb(m+2)..., Kb2mIt is completely in conducting state, and it is uniformly to divide that the time started interval method of salary distribution, which is connected, Match.High voltage negative pulse generation circuit is m grades total, in t=0, the first order of negative pulse generation circuit, i.e. m+1 grades of circuits it is low End switch Kb(m+1)It starts to open at, conducting delay is t1, i.e., the low-end switch K of m+1 grades of circuits after the t1 timesb(m+1)Completely Conducting.The low-end switch K of m+1 grades of circuitsb(m+1)By the delay of tx, the low-end switch of m+2 grades of circuits after starting to open at Kb(m+2)It starts to open at, turn-on time t1, i.e., the low-end switch K of m+2 grades of circuits after the tx+t1 timesb(m+2)It leads completely It is logical.And so on, from the low-end switch K of first switching group of negative pulse generation circuitb(m+1)It begins to turn on, is produced to negative pulse The low-end switch K of m-th of switching group of raw circuitb2mWhen also beginning to opening and process time t1 fully on, the time used is For the rise time T of negative pulsen1, i.e. Tn1=(m-1) tx+t1.The 1st, 2 of circuit ..., the low-end switch K of mb1, Kb2..., Kbm Operation level in above-mentioned whole process be always low level, i.e., that is high-voltage positive pulses generation circuit is in charged state, Do not export positive pulse.
As shown in figure 8, be that partial switch is off state in high-voltage positive pulses generation circuit, and turn off between the time started Every the corresponding each switching group working timing figure of the failing edge of grayscales uneven distribution.The failing edge that positive pulse is arranged is Tp2(Tp2≥ T1), in control method as shown in Figure 3, only part (u grades of switching groups, u≤m) is in work in m grades of positive pulse generation circuits Make state for generating positive pulse, i.e. control module is by fall time Tp2This u switching group module is distributed to, by prolonging for tx1 When, the high-end switch K of first switching groupa1It begins breaking, shutdown delay is t2, i.e., first switch after the tx1+t2 times The high-end switch K of groupa1It complete switches off.The high-end switch K of first switching groupa1By the delay of tx2 after beginning to turn off, second The high-end switch K of a switching groupa2It begins to turn off, shutdown delay is t2, i.e., second switching group after the tx1+tx2+t2 times High-end switch Ka2It complete switches off.And so on, from the high-end switch K of first switching groupa1It begins to turn off, is switched to u-th The high-end switch K of groupauWhen also beginning to turn off and complete switch off by time t2, the time used is the failing edge of positive pulse Tp2, i.e. Tp2=tx1+tx2+ ...+txu+t2.The u+1 of circuit, u+2 ..., m grades of high-end switch Ka(u+1), Ka(u+2)..., KamOperation level in above-mentioned whole process be always zero level, the m+1 of circuit, m+2 ..., high-end in 2m grades of circuits open Close Ka(m+1), Ka(m+2)..., Ka2mIt is begun to turn at the t=0 moment, i.e., that is negative pulse generation circuit is in charged state, no Export negative pulse.
As shown in figure 9, the parameter regulation mode of high-voltage positive pulses fall time is whole in high-voltage positive pulses generation circuit High-end switch is off state, and turns off time started interval and be evenly distributed to each switch.As shown in figure 8, working as t=0 The high-end switch K of first switching group of momenta1It begins to turn off, the high-end switch K of second switching group after the tx that is delayeda2It opens Begin to turn off, using delay tx, the high-end switch K of third switching groupa3It begins to turn off, and so on, by time t=(m- 1) after the * tx+t2 times, all solids switching group mould high-end switch in the block is all off in high-voltage positive pulses generation circuit.Such as Fruit meets (m-1) * tx+t2=Tp2, (wherein Tp2≥t1) it can then realize positive pulse fall time of setting.The m+1 of circuit, High-end switch K in m+2 ..., 2m grades of circuitsa(m+1), Ka(m+2)..., Ka2mIt is begun to turn at the t=0 moment, i.e., negative pulse generates Circuit is completely in charged state, does not export negative pulse.
As shown in Figure 10, the parameter regulation mode of high voltage negative pulse fall time is the low side of high voltage negative pulse generation circuit Switch Kb(m+1), Kb(m+2)..., Kb2mIn partial switch be off state, and turn off time started interval grayscales uneven distribution and arrive Each switch.As shown in figure 9, setting negative pulse failing edge is Tn2, only (v grade switch for part in m grades of negative pulse generation circuits Group, v≤m) it is in running order, control module by negative pulse failing edge be delayed Tn2This v switching group is distributed to, by tx1's Delay, the first order of negative pulse generation circuit, i.e., the low-end switch K of m+1 grades circuitsb(m+1)It begins to turn off, shutdown delay is T2, i.e., the low-end switch K of m+2 grades of circuits after the tx1+t2 timesb(m+1)It complete switches off.The low-end switch of m+1 grades of circuits Kb(m+1)By the delay of tx2, the low-end switch K of m+2 grades of circuits after beginning to turn offb(m+2)It beginning to turn off, shutdown delay is t2, The low-end switch K of m+2 grades of circuits i.e. after the tx1+tx2+t2 timesb(m+2)It complete switches off.And so on, it is produced from negative pulse The low-end switch K of first switching group of raw circuitb(m+1)It begins to turn off, arrives the low of v-th of switching group of negative pulse generation circuit End switch Kb(m+v)When also beginning to turn off and complete switch off by time t2, the time used is the failing edge T of negative pulsen2, i.e., Tn2=tx1+tx2+ ...+txv+t2.The m+v+1 of circuit, m+v+2 ..., the low-end switch K of 2mb(v+1), Kb(v+2)..., Kb2m Operation level in above-mentioned whole process be always zero level, the 1st, 2 of circuit the ..., the low-end switch K in m grades of circuitsb1, Kb2..., KbmIt is begun to turn at the t=0 moment, i.e., that is high-voltage positive pulses generation circuit is in charged state, does not export positive arteries and veins Punching.
As shown in figure 11, the parameter regulation mode of high voltage negative pulse fall time is complete in high voltage negative pulse generation circuit Portion low-end switch Kb(m+1), Kb(m+2)..., Kb2mIt is off state, and shutdown time started interval is evenly distributed to each and opens It closes.As shown in Figure 10, as the low-end switch K of first switching group of t=0 momentb1It begins to turn off, is opened for second after the tx that is delayed The low-end switch K of pass groupb2It begins to turn off, using delay tx, the low-end switch K of third switching groupb3It begins to turn off, successively Analogize, after time t=(m-1) * tx+t2 times, all solids switching group mould is in the block in high voltage negative pulse generation circuit Low-end switch is all off.If meeting (m-1) * tx+t2=Tn2, (wherein Tn2≥t1) can then realize under the negative pulse of setting Time drops.The 1st, 2 of circuit ..., the low-end switch K in m grades of circuitsb1, Kb2..., KbmIt is begun to turn at the t=0 moment, i.e., just It is to say that high-voltage positive pulses generation circuit is in charged state, does not export positive pulse.
The voltage magnitude of high-voltage positive pulses is adjusted, and is exactly to give m high pressure according to the voltage parameter of the high-voltage positive pulses of input Positive pulse module carries out the process of voltage distribution, can evenly distribute to the voltage method of salary distribution of every stage circuit, also may be used To be grayscales uneven distribution.M high-voltage positive pulses module (i.e. the 1st, 2 of bipolar pulse circuit ..., m grades) passes through suspension grade The mode of connection links together, and the output voltage superposition per level-one switching group finally generates required voltage magnitude in output end Positive pulse.The process for reaching some voltage magnitude, it is corresponding with rising edge and the generation process of failing edge, in m switching group High-end switch can be in conducting state, can also only be partially in conducting state；And the voltage that each switching group generates Amplitude can be identical, can also be different.In the operating voltage range of permission, the pulse that each switching group generates is electric The amplitude of pressure can continuously adjust, and it is also continuously adjustable in a certain range to generate high-voltage pulse in output end after superposition 's.By taking high-voltage positive pulses mould whole switching groups in the block are in running order as an example, it is assumed that the amplitude of the high-voltage positive pulses of setting Control method for VH, control module is：If voltage is grayscales uneven distribution mode, controls first switching group and generate voltage U1 controls second switching group and generates voltage U2 ..., controls m-th of switching group and generates voltage Um, then last output voltage is U1+U2+ ...+Um=VH.If voltage is the mode evenly distributed, controls first switching group and generate voltage U, second switch Group also generates voltage U ..., and m-th of switching group also generates voltage U, then last output voltage is m*U=VH.
The voltage magnitude of high voltage negative pulse is adjusted, and is exactly to give m high pressure according to the voltage parameter of the high voltage negative pulse of input Negative pulse module carries out the process of voltage distribution, can evenly distribute to the voltage method of salary distribution of every stage circuit, also may be used To be grayscales uneven distribution.M high voltage negative pulse module (i.e. the m+1 of bipolar pulse circuit, m+2 ..., 2m grades) passes through outstanding It floats cascade mode to link together, the switching group output voltage per level-one is superimposed, and finally generates required voltage amplitude in output end The negative pulse of value.The process for reaching some voltage magnitude, it is corresponding with negative pulse rising edge and the generation process of failing edge, bear arteries and veins The low-end switch rushed in m switching group of generation circuit can be in conducting state, can also only be partially in conducting shape State；And the voltage magnitude that each switching group generates can be identical, can also be different.In the operating voltage range of permission Interior, the amplitude for the pulse voltage that each switching group generates can continuously adjust, and generating high pressure in output end after superposition bears arteries and veins Punching is also continuously adjustable in a certain range.It is so that whole switching groups in high voltage negative pulse generation circuit are in running order Example, it is assumed that the amplitude of the high voltage negative pulse of setting is VL, and the control method of control module is：If voltage is grayscales uneven distribution side Formula, control high voltage negative pulse mould first switching group in the block generate voltage-U1, control second switching group and generate voltage- U2 ... controls m-th switching group and generates voltage-Um, then last output voltage be (- U1)+(- U2)+...+(- Um)=VL. If voltage is the mode evenly distributed, controls first switching group and generate voltage-U, second switching group also generates voltage- U ..., m-th of switching group also generate voltage-U, then last output voltage is m* (- U)=VL.
The width parameter of high-voltage positive pulses be by control in high-voltage positive pulses module the conduction duration that switchs come It realizes.After rising edge process, when the voltage of high-voltage positive pulses reaches stable, in running order high-end switch is all The state being fully on.Then it is T at the time of u switch is fully on assuming that there is u high-end switch in running orderp1= The positive pulse width parameter of tx1+tx2+ ...+txu+t1, setting output pulse are tp0, it is assumed that the switch also first of first conducting A shutdown should be T at the time of then the high-end switch in first switching group is begun to turn offp1+tp0+ tx1, second switching group In high-end switch should be T at the time of begin to turn offp1+tp0+ tx1+tx2 is (assuming that the same switching group SWiIn rising edge under It is all txi to drop along assigned conducting delay and shutdown delay), and so on, there is failing edge in impulse waveform.Therefore, finally Positive pulse have corresponding pulse width tp0, and pulse width is continuously adjustable in this process.
The width parameter of high voltage negative pulse be by control high voltage negative pulse module in switch conduction duration come It realizes.After the rising edge process of negative pulse, when the voltage of high voltage negative pulse reaches stable, in running order opens The state that the low-end switch of pass group is all fully on.Assuming that there is v low-end switch to be in work in high voltage negative pulse generation circuit Make state, is then T at the time of v low-end switch is fully onn1=tx1+tx2+ ...+txv+t1, the negative arteries and veins of setting output pulse It is t to rush width parametern0, it is assumed that first conducting switch also first shutdown, then first low-end switch begin to turn off when Quarter should be Tn1+tn0+ tx1 should be T at the time of second low-end switch is begun to turn offn1+tn0+ tx1+tx2 is (assuming that switching group SWiAll it is txi in the assigned conducting delay of rising edge and failing edge and shutdown delay), and so on, negative pulse waveform occurs Failing edge.Therefore, final negative pulse has corresponding pulse width tn0, and pulse width is continuously adjustable in this process 's.
Regulation and control to bipolarity high-voltage pulse frequency parameter are the frequencies of the control signal generated by adjusting control module It realizes.Parameter input module inputs the frequency f of bipolar pulse, and control module generates the period according to the parameter information received Property frequency be f control signal, control solid switch group mould switch periods in the block turn-on and turn-off.High-voltage positive pulses The process of the turn-on and turn-off each time of mould switching group in the block can all generate a high-voltage positive pulses, in high voltage negative pulse module The process of turn-on and turn-off each time of switching group can all generate a high voltage negative pulse, and each control signal is in a week Conducting information and shutdown information are fixed in phase, so bipolarity high-voltage pulse can periodically be exported in output end.It is defeated The double polarity pulse signal gone out and control signal frequency f having the same, meet the requirement of set frequency parameter, take notice of range Interior output frequency is continuously adjustable.
To in bipolarity high-voltage pulse a cycle between positive pulse and negative pulse time interval regulation and control, be to pass through control Module control a cycle between high-voltage positive pulses failing edge end time and high voltage negative pulse rising edge time started when Between interval control.When the high-end switch of all high-voltage positive pulses modules is all off, the failing edge of high-voltage positive pulses module At the end of, high voltage negative pulse module is there is no starting to work, and at this moment, the output of circuit afterbody is zero level, it is assumed that setting Time interval in a cycle between high-voltage positive pulses and high voltage negative pulse is tg, the last one switch of high-voltage positive pulses module The time complete switched off is tc, then the time that first low-end switch of high voltage negative pulse module is begun to turn on should be tg+tc+ Tx1, behind high voltage negative pulse module in circuit sequentially turned on according to negative pulse rising edge Delay distribution.
In actual demand, it is sometimes desirable to umber of pulse be limited, it is therefore desirable to the bipolarity high-tension pulse of certain amount Punching.When inputting specific umber of pulse in parameter input module, the counter in control module can carry out the control signal sent out It counts, when switching group module completes the turn-on and turn-off of a cycle, generates a positive pulse and a negative pulse, counter Add 1, under the control of cyclic control signal, solid switch group module constantly completes turn-on and turn-off, generates periodic Bipolarity high-voltage pulse counts incremented by successively.After reaching the umber of pulse of setting, control signal control output end no longer exports High-voltage pulse finally obtains a limited number of bipolarity high-voltage pulse.It, during operation can be with if not requiring output umber of pulse Fixed frequency constantly generates high-voltage pulse.Umber of pulse parameter is continuously adjustable within the scope of certain numerical value, when more than the number It is infinite that umber of pulse can be approximately considered after value.
Control method proposed by the present invention can control the bipolarity high-voltage pulse generation circuit of different structure, Such as the structure of the bipolarity high-voltage pulse circuit can be that preceding part is made of high-voltage positive pulses generation circuit, rear part is by height Press negative pulse generation circuit composition；Can be that preceding part is made of high voltage negative pulse generation circuit, rear part is by high-voltage positive pulses Generation circuit forms.It can also be that high-voltage positive pulses generation circuit and the arbitrary of high voltage negative pulse generation circuit staggeredly cascade.
The foregoing is merely the section Examples of the present invention, are not intended to restrict the invention, all in spirit of that invention and original Within then, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of control system of bipolar high-voltage pulse power source, which is characterized in that including the high-voltage positive pulses production being connected in series with Raw circuit and high voltage negative pulse generation circuit, wherein high-voltage positive pulses generation circuit is made of a series of high-voltage positive pulses modules, High voltage negative pulse generation circuit is made of a series of high voltage negative pulse modules, and the high-voltage positive pulses module includes positive pulse control Module, positive pulse switch module and positive pulse energy-storage module, positive pulse control module is by controlling in positive pulse switch module The on or off each switched determines positive pulse energy-storage module charge or discharge；The high voltage negative pulse module includes negative pulse Control module, negative pulse switch module and negative pulse energy-storage module, negative pulse control module is by controlling negative pulse switching molding The on or off each switched in block determines negative pulse energy-storage module charge or discharge；The generation bipolarity high-voltage pulse Device further includes the high-voltage DC power supply for providing high voltage direct current input to positive pulse energy-storage module and negative pulse energy-storage module Module, and it is mutually isolated between high voltage direct current source module and positive pulse energy-storage module and negative pulse energy-storage module, and be used for To positive pulse control module, negative pulse control module, positive pulse switch module, negative pulse switch module and high-voltage DC power supply Module provides the low-voltage DC source module of operating voltage, further includes parameter input module, the parameter input module and Zheng Mai It rushes control module to connect with negative pulse control module, the positive pulse control module and negative pulse control module are bipolar for adjusting The parameter of property high-voltage pulse.
2. the control method of the bipolar high-voltage pulse power source of system according to claim 1, which is characterized in that generate bipolar One work period of property pulse includes four-stage, is respectively：1. high-voltage positive pulses module and high voltage negative pulse module are located In charged state, circuit output zero level；2. high-voltage positive pulses module is in discharge condition, high voltage negative pulse module is in charging State, circuit output high-voltage positive pulses；3. high-voltage positive pulses module and high voltage negative pulse module are in charged state, circuit is defeated Go out zero level；4. high voltage negative pulse module is in discharge condition, high-voltage positive pulses module is in charged state, circuit output high pressure Negative pulse；The four-stage can be combined arbitrarily, still, the stage 2. and 4. between 1. or the stage must at least interval stage 3. control the stage 2. and the stage 4. between the time length, can adjust in a cycle between positive pulse and negative pulse Time interval.
3. the control method of bipolar high-voltage pulse power source according to claim 2, which is characterized in that bipolarity high-tension pulse The parameter of punching includes in the frequency, positive/negative pulse width, a cycle of bipolarity high-voltage pulse between positive pulse and negative pulse Time interval, the rise time and fall time of positive/negative pulse, the voltage magnitude of positive/negative pulse and the umber of pulse of output, and it is double The parameter of polarity high-voltage pulse can continuously adjust.
4. the control method of bipolar high-voltage pulse power source according to claim 3, which is characterized in that the rising of positive pulse The adjusting method of time and fall time is specially：The positive pulse that positive pulse control module is inputted according to parameter input module it is upper Time and fall time parameter are risen, specific positive pulse control signal, the positive pulse control of h grades of high-voltage positive pulses generation circuits are generated Molding block to h group of switches at the beginning of different turn-on and turn-off, duration and end time, wherein h=1, 2,3,4 ..., 2m-1, h switching groups are sequentially turned on or are turned off by certain sequential, when obtaining having the different rise time and declining Between positive pulse；
The adjusting method of the rise time and fall time of negative pulse is specially：Negative pulse control module is according to parameter input module The rise time and fall time parameter of the negative pulse of input generates specific negative pulse control signal, j grades of high voltage negative pulse productions The negative pulse control module of raw circuit match different turn-on and turn-off to j group of switches at the beginning of, duration and knot Beam time, wherein j=1,2,3,4 ..., 2m-1, and h+j=2m, j switching group are sequentially turned on or are turned off by certain sequential, are obtained To the negative pulse with different rise time and fall time.
5. the control method of bipolar high-voltage pulse power source according to claim 3, which is characterized in that the voltage of positive pulse The adjusting method of amplitude is specially：In plus high-pressure DC power supply, positive pulse control module is inputted according to parameter input module The voltage magnitude of positive pulse generate specific control signal, control high voltage direct current source module exports certain voltage, reaches Voltage magnitude needed for positive pulse；
The adjusting method of the voltage magnitude of negative pulse is specially：In plus high-pressure DC power supply, negative pulse control module according to The voltage magnitude of the negative pulse of parameter input module input generates specific control signal, control high voltage direct current source module output Certain voltage reaches the voltage magnitude needed for negative pulse.
6. the control method of bipolar high-voltage pulse power source according to claim 3, which is characterized in that bipolarity high-tension pulse The adjusting method of the frequency of punching is：Positive pulse control module and negative pulse control module input bipolar according to parameter input module Property pulse frequency, generate the control signal of different frequency, control high-voltage positive pulses generation circuit and high voltage negative pulse respectively and generate Switching group in circuit makes bipolarity high-voltage pulse persistently be generated according to specific frequency.
7. the control method of bipolar high-voltage pulse power source according to claim 3, which is characterized in that positive pulse width Adjusting method is：In high-voltage positive pulses generation circuit, after the switching group of all working is all fully on, identical conducting is maintained Time, then start to turn off in a certain order, make high-voltage positive pulses that there is required pulse width；
The adjusting method of negative pulse width is：In high voltage negative pulse generation circuit, the switching group of all working is all fully on Afterwards, identical turn-on time is maintained, then starts to turn off in a certain order, to make high voltage negative pulse that there is required pulse Width.
8. the control method of bipolar high-voltage pulse power source according to claim 3, which is characterized in that the umber of pulse of output Adjusting method be specially：If parameter input module is provided with determining umber of pulse, when positive pulse control module and negative pulse When counter in control module is counted to target pulse number, positive pulse control module and negative pulse control module control height respectively Positive pressure pulse-generating circuit and high voltage negative pulse generation circuit stop generating pulse, to the umber of pulse needed for output；If ginseng Umber of pulse is not arranged for number input module, or the umber of pulse of setting is more than the range allowed, and circuit then exports infinite multiple pulses.
9. the control method of bipolar high-voltage pulse power source according to claim 2, which is characterized in that positive pulse width, The rise time and fall time of positive pulse and the voltage magnitude of positive pulse change positive pulse by positive pulse control module and open The working condition that switchs is closed in module to adjust；Negative pulse width, the rise time and fall time of negative pulse and negative pulse Voltage magnitude the working condition that switchs is changed in negative pulse switch module to adjust by negative pulse control module.
10. the control method of bipolar high-voltage pulse power source according to claim 2, which is characterized in that positive pulse controls Module and negative pulse control module are field programmable gate array, application-specific integrated circuit, Complex Programmable Logic Devices, list Piece machine, digital signal processing chip, arm processor or computer.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108988830A (en) * 2018-08-03 2018-12-11 中国电子科技集团公司第二十四研究所 A kind of pulse signal generation circuit of programmable edge time
CN109777732A (en) * 2019-01-17 2019-05-21 重庆大学 A kind of bipolar cells fusion instrument and its control method
CN112600457A (en) * 2020-12-15 2021-04-02 中国工程物理研究院激光聚变研究中心 Compact solid-state bipolar fast-edge nanosecond pulse power supply system and operation method
CN112803923A (en) * 2020-12-26 2021-05-14 沈小东 Self-adaptive electroosmosis pulse generation device and electroosmosis pulse control method
CN117596762A (en) * 2024-01-18 2024-02-23 离享未来(德州)等离子科技有限公司 Bipolar nanosecond pulse power supply for discharge plasma

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001169553A (en) * 1999-12-02 2001-06-22 Mitsubishi Electric Corp Switched mode rectifier
US20080175404A1 (en) * 2000-07-11 2008-07-24 Bank Jeevan G Power amplification for parametric loudspeakers
WO2011032149A2 (en) * 2009-09-14 2011-03-17 Board Of Regents, The University Of Texas System Bipolar solid state marx generator
CN104617808A (en) * 2015-01-30 2015-05-13 重庆市计量质量检测研究院 Novel adjustable polarity square wave high-voltage pulse power circuit and control strategy for generating double-polarity pulse
CN107482944A (en) * 2017-08-30 2017-12-15 中国舰船研究设计中心 One kind output adjustable all solid state high voltage power supply of pulse multi-parameter
CN107565845A (en) * 2017-08-30 2018-01-09 西安交通大学 The load matching device and method of a kind of high-voltage pulse power source
CN107565933A (en) * 2017-08-30 2018-01-09 西安交通大学 A kind of high-voltage pulse power source parameterizes device and method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001169553A (en) * 1999-12-02 2001-06-22 Mitsubishi Electric Corp Switched mode rectifier
US20080175404A1 (en) * 2000-07-11 2008-07-24 Bank Jeevan G Power amplification for parametric loudspeakers
WO2011032149A2 (en) * 2009-09-14 2011-03-17 Board Of Regents, The University Of Texas System Bipolar solid state marx generator
CN104617808A (en) * 2015-01-30 2015-05-13 重庆市计量质量检测研究院 Novel adjustable polarity square wave high-voltage pulse power circuit and control strategy for generating double-polarity pulse
CN107482944A (en) * 2017-08-30 2017-12-15 中国舰船研究设计中心 One kind output adjustable all solid state high voltage power supply of pulse multi-parameter
CN107565845A (en) * 2017-08-30 2018-01-09 西安交通大学 The load matching device and method of a kind of high-voltage pulse power source
CN107565933A (en) * 2017-08-30 2018-01-09 西安交通大学 A kind of high-voltage pulse power source parameterizes device and method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108988830A (en) * 2018-08-03 2018-12-11 中国电子科技集团公司第二十四研究所 A kind of pulse signal generation circuit of programmable edge time
CN108988830B (en) * 2018-08-03 2022-05-03 中国电子科技集团公司第二十四研究所 Pulse signal generating circuit capable of programming edge time
CN109777732A (en) * 2019-01-17 2019-05-21 重庆大学 A kind of bipolar cells fusion instrument and its control method
CN109777732B (en) * 2019-01-17 2020-12-18 重庆大学 Bipolar cell fusion instrument and control method thereof
CN112600457A (en) * 2020-12-15 2021-04-02 中国工程物理研究院激光聚变研究中心 Compact solid-state bipolar fast-edge nanosecond pulse power supply system and operation method
CN112600457B (en) * 2020-12-15 2022-04-12 中国工程物理研究院激光聚变研究中心 Compact solid-state bipolar fast-edge nanosecond pulse power supply system and operation method
CN112803923A (en) * 2020-12-26 2021-05-14 沈小东 Self-adaptive electroosmosis pulse generation device and electroosmosis pulse control method
CN117596762A (en) * 2024-01-18 2024-02-23 离享未来(德州)等离子科技有限公司 Bipolar nanosecond pulse power supply for discharge plasma
CN117596762B (en) * 2024-01-18 2024-04-05 离享未来(德州)等离子科技有限公司 Bipolar nanosecond pulse power supply for discharge plasma

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