CN108599742A - A kind of the negative high voltage Pulased power supply unit and parametrization adjusting method of Parameter adjustable - Google Patents
A kind of the negative high voltage Pulased power supply unit and parametrization adjusting method of Parameter adjustable Download PDFInfo
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- CN108599742A CN108599742A CN201810322511.3A CN201810322511A CN108599742A CN 108599742 A CN108599742 A CN 108599742A CN 201810322511 A CN201810322511 A CN 201810322511A CN 108599742 A CN108599742 A CN 108599742A
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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
- H03K5/01—Shaping pulses
- H03K5/04—Shaping pulses by increasing duration; by decreasing duration
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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
- H03K5/00006—Changing the frequency
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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
- H03K5/01—Shaping pulses
- H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding
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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
- H03K5/01—Shaping pulses
- H03K5/12—Shaping pulses by steepening leading or trailing edges
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- Nonlinear Science (AREA)
- Plasma Technology (AREA)
Abstract
The invention discloses a kind of negative high voltage Pulased power supply unit of Parameter adjustable and parametrization adjusting methods, belong to high-voltage pulse power source field of structural design, including parameter input module, drive control module, high voltage direct current source module and switch module；Parameter input module, for required negative high voltage impulse waveform parameter to be arranged and is sent to drive control module；Drive control module for by the negative high voltage impulse waveform parameter processing of setting and being converted into the control signal of switch module, and is sent to switch module；High voltage direct current source module, for providing direct-current working volts to switch module；Switch module for making corresponding response to the control signal received, and exports the negative high voltage pulse for meeting set negative high voltage impulse waveform parameter.
Description
Technical field
The invention belongs to high-voltage pulse power source field of structural design, and in particular to a kind of negative high voltage pulse electricity of Parameter adjustable
Source device and parametrization adjusting method.
Background technology
It is quickly grown using the gas discharge plasma and its application technology of high-voltage pulse driving, correlative study and application
Cover biomedicine, environmental protection, offal treatment, material surface modifying, flowing control, plasma igniting and auxiliary in field
Burning etc..Research shows that applied voltage positive-negative polarity difference leads to the characteristic of gas discharge plasma, there are significant differences.Example
Such as, in the experimental study for improving pesticide utilization ratio using Electrostatic Spraying of Negative High-voltage Pulse Corona Charge, negative corona is preferably used to charge,
Because under identical voltage conditions, the sudden electric-field strength of the corona discharge generation of negative high voltage pulsed drive can make gas point
Son excitation is decomposed and is ionized, and is discharged to restrain, and pesticide is generally the high-molecular compound that medium-sized molecule is constituted, and is easily obtained electric
Son and be in negativity.Conclusions show gas discharge plasma under the driving of negative polarity high-voltage pulse and in positive polarity high-tension pulse
Punching driving is lower compared to certain advantage is possessed, and has unique application value.
In addition, when generating atmospheric non-equilibrium plasma using pulsed drive rather than other modes, the items of pulse
Parameter plasma flash-over characteristic has direct influence.Studies have shown that pulse voltage amplitude is higher, electron generation efficiency is got over
It is high；Rising edge of a pulse influences averaged electron energy size, and pulse falling edge influences secondary discharge process；Pulse recurrence frequency is got over
Height, plasma Compound Degree are lower；Pulse width can then influence the size of discharge current.Due to application oriented plasma
The final goal of research seeks to realize the Effective Regulation to crucial plasma parameters, and plasma parameters and pulse is each
Item parameter has inseparable contact again, thus the research in plasma discharge field puies forward the adjustability of pulse power parameters
Higher and higher demand is gone out.
Invention content
In order to overcome the problems of the above-mentioned prior art, the purpose of the present invention is to provide a kind of negative height of Parameter adjustable
Pulased power supply unit and parametrization adjusting method are pressed, it can be by controlling and adjusting the work of several cascade switching groups of suspending
State, to make the negative high voltage pulse of output meet set waveform parameter.
The present invention is to be achieved through the following technical solutions：
A kind of negative high voltage Pulased power supply unit of Parameter adjustable disclosed by the invention, including parameter input module, driving control
Molding block, high voltage direct current source module and switch module；
Parameter input module, for required negative high voltage impulse waveform parameter to be arranged and is sent to drive control module；It drives
Dynamic control module, for by the negative high voltage impulse waveform parameter processing of setting and being converted into the control signal of switch module, concurrently
It send to switch module；High voltage direct current source module, for providing direct-current working volts to switch module；Switch module, for pair
The control signal received makes corresponding response, and exports the negative high voltage arteries and veins for meeting set negative high voltage impulse waveform parameter
Punching；
Wherein, the switch module, by suspending, cascade m grades of switching group SWi is formed, wherein i=1,2 ..., m；M is more than
2；Drive control module, can export the roads m control signal, the roads m control signal to the working condition of m grade switching groups carry out control with
It adjusts, changes the negative high voltage impulse waveform parameter of final output.
Preferably, switching molding is in the block per the equal control terminal there are one for receiving control signal of level-one switching group, each
Grade switching group is independent from each other the response for controlling signal.
Preferably, negative high voltage impulse waveform parameter includes rising edge, failing edge, voltage magnitude, repetition rate, pulse width
And pulse number, and above-mentioned negative high voltage impulse waveform continuous parameters are adjustable or discontinuous adjustable.
It is further preferred that the roads m control, signal is delayed to m group of switches with certain conducting and shutdown is delayed, and makes m
Switching group is sequentially turned on and is turned off according to corresponding sequential, to make negative high voltage pulse output have corresponding rising edge and decline
Edge；Wherein：
During generating rising edge, all work or part work m switching group, switch of the conducting delay in work
It is evenly distributed in group or grayscales uneven distribution；
During generating failing edge, all work or part work m switching group；Switch of the shutdown delay in work
It is evenly distributed in group or grayscales uneven distribution.
It is further preferred that the roads m control signal matches certain voltage magnitude parameter to m group of switches, make m switching group
Corresponding voltage is generated under the driving of high-voltage DC power supply, and so that negative high voltage pulse output is had accordingly by overlapped in series
Voltage magnitude；Wherein, during generating certain voltage amplitude, m switching group completely or partially works；Voltage magnitude parameter
It is evenly distributed in the switching group of work or grayscales uneven distribution.
It is further preferred that control signal matches certain conduction duration parameter to the group of switches of work, make to own
The switching group of work maintains identical conduction duration after all turning on, and then starts to turn off successively again, makes negative high voltage arteries and veins
Punching output has corresponding pulse width；
According to the frequency of the control signal of reception, the switching group of all working makes according to certain period turn-on and turn-off
Negative high voltage pulse output has corresponding repetition rate；
If being provided with determining output pulse number, drive control module can be counted, when the pulse number of generation reaches
To output negative high voltage pulse is stopped when set pulse number, make negative high voltage pulse output that there is corresponding pulse number.
Preferably, the control signal that drive control module generates is periodicity, aperiodicity, partial period periodicity or portion
Aperiodicity at times；
The control signal that drive control module generates is the single control for possessing whole negative high voltage impulse waveform parameter informations
Signal, or for possess respectively each parameter information a series of control signals summation；
By changing any one or more numerical value of set parameter in parameter input module, to drive control module
The control signal of generation carries out instant modification and adjusting.
Preferably, the processing chip that drive control module uses is patrolled for on-site programmable gate array FPGA, complex programmable
Device CPLD, application-specific integrated circuit ASIC, digital signal processing chip DSP, microcontroller or arm processor are collected, but is not limited to this
A little devices.
The invention also discloses the parametrization adjusting method of the negative high voltage Pulased power supply unit based on above-mentioned Parameter adjustable,
Include the following steps：
Step 1：The setting and transmission of negative high voltage impulse waveform parameter
User according to demand parameter input module setting negative high voltage pulse export waveform parameter, including rising edge, under
Edge, voltage magnitude, repetition rate, pulse width and pulse number drop, after being provided with, wave that parameter input module will be set
Shape parameter information is sent to drive control module；
Step 2：The processing of parameter information and the generation and transmission for controlling signal
Drive control module carries out respectively after receiving the waveform parameter sent by parameter input module, to parameters
Processing generates the roads m control signal g1, g2 ..., g (m-1), gm, and sends it to switch module, controls m suspension grade respectively
The switching group SW1, SW2 ..., SW (m-1) of connection, the working condition of SWm；
Step 3：The output of the control and negative high voltage pulse of switching group working condition
The control terminal G1, G2 ..., G (m-1) of m switching group in switch module, Gm is received sent out by drive control module respectively
The roads m control the signal g1, g2 ..., g (m-1) sent, gm, make this m switching group have different conducting delays, shutdown be delayed and
Conduction duration, to according to certain sequential turn-on and turn-off；Meanwhile high voltage direct current source module is provided to switch module
Required direct-current working volts are finally generated the negative high voltage pulse being consistent with set waveform parameter by switch module and exported, and
And whole waveform parameters of negative high voltage pulse output can continuously or discontinuously be adjusted.
Preferably, change the numerical value of arrange parameter, the waveform parameter information that parameter input module is sent can be sent out immediately therewith
It is raw to change；When the parameter information that parameter input module is sent changes, the control signal that drive control module generates is made
Summary responses can be to driving that is, by changing any one or more numerical value of set parameter in parameter input module
The control signal that control module generates carries out instant modification and adjusting.
Compared with prior art, the present invention has technique effect beneficial below：
The parametric method and device of the negative high voltage pulse power disclosed by the invention, by parameter input module, drive control
Four module, high voltage direct current source module and switch module parts form.Parameter input module is for being arranged required negative high voltage
Impulse waveform parameter, and then it is sent to drive control module；Drive control module is for handling the parameter of setting, by it
It is converted into the control signal of each switching group work in switch module, and then is sent to switch module；High voltage direct current source module
For providing direct-current working volts to switching group；Switch module makes corresponding response to the control signal received, and then most
Output meets the negative high voltage pulse of set parameter eventually.The key point of the present invention is the wave by drive control module to input
Shape parameter information is handled, and generates control signal to control and adjust the work in the cascade switching group of suspension per level-one switching group
Make state, to generate the negative high voltage pulse output for meeting set waveform parameter, whole waves of the negative high voltage pulse of the output
Shape parameter can continuously or discontinuously be adjusted in a certain range.The waveform parameter of negative high voltage pulse includes rising edge, declines
Edge, voltage magnitude, repetition rate, pulse width and pulse number etc..
Description of the drawings
Fig. 1 is the portion waveshape parameter schematic diagram that negative high voltage pulse exports in the present invention；
Fig. 2 is the structure drawing of device that negative high voltage pulse power parameters are realized in the present invention；
Fig. 3 be n switching group it is in running order and be connected delay grayscales uneven distribution rising edge parametric method show
It is intended to (n≤m)；
Fig. 4 be n switching group it is in running order and be connected delay evenly distribute rising edge parametric method signal
Scheme (n≤m)；
Fig. 5 is that n switching group is in working condition and turns off the failing edge parametric method of delay grayscales uneven distribution
Schematic diagram (n≤m)；
Fig. 6 be n switching group it is in running order and turn off delay evenly distribute failing edge parametric method signal
Scheme (n≤m)；
Fig. 7 is the in running order voltage magnitude parametric method schematic diagram (n≤m) of n switching group；
Fig. 8 is the in running order repetition rate parametric method schematic diagram (n≤m) of n switching group；
Fig. 9 is the in running order pulse width parameter method schematic diagram (n≤m) of n switching group.
Specific implementation mode
With reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
The present invention proposes the negative high voltage Pulased power supply unit structure of Parameter adjustable as shown in Figure 2, including parameter input
Four module, drive control module, high voltage direct current source module and switch module parts；
Parameter input module, for required negative high voltage impulse waveform parameter to be arranged and is sent to drive control module；It drives
Dynamic control module, for by the negative high voltage impulse waveform parameter processing of setting and being converted into the control signal of switch module, concurrently
It send to switch module；High voltage direct current source module, for providing direct-current working volts to switch module；Switch module, for pair
The control signal received makes corresponding response, and exports the negative high voltage arteries and veins for meeting set negative high voltage impulse waveform parameter
Punching；
Wherein, the switch module, by suspending, cascade m grades of switching group SWi is formed, wherein i=1,2 ..., m；M is more than
2；Drive control module, can export the roads m control signal, the roads m control signal to the working condition of m grade switching groups carry out control with
It adjusts, changes the negative high voltage impulse waveform parameter of final output.
Referring to Fig. 1, to rising edge, failing edge, voltage magnitude, repetition rate, pulse width and pulse number in the present invention
Etc. waveform parameters realize parametrization specific method be described in detail, the title of the parameter or variable that may use is as follows：
The number for the cascade whole switching groups that suspend in switch module and the way of corresponding control signal are that (m is not small by m
In 2)；The number of in running order switching group and the way of corresponding control signal are n (n≤m) in switch module；
The intrinsic turn-on time of each switching group is tc0 in switch module；Each switching group consolidates in switch module
It is ts0 to have the turn-off time；The conducting delay parameter of each switching group is that tcx (x=1,2 ..., m) (prolong by conducting in switch module
When grayscales uneven distribution) or tc (conducting delay evenly distribute)；The shutdown delay parameter of each switching group is tsy in switch module
(y=1,2 ..., m) (shutdown delay grayscales uneven distribution) or ts (shutdown delay evenly distributes)；Each in switch module switchs
The voltage magnitude parameter of group is Vaz (z=1,2 ..., m) (voltage magnitude grayscales uneven distribution) or Va (voltage magnitude evenly distributes)；
The rising edge parameter of negative high voltage pulse output is Tr；The failing edge parameter of negative high voltage pulse output is Tf；
The voltage magnitude parameter of negative high voltage pulse output is Vout；The repetition rate parameter of negative high voltage pulse output is f0；
The pulse width parameter of negative high voltage pulse output is Tw；The pulse number parameter of negative high voltage pulse output is N.
In the present invention, since the switch in each switching group under actual conditions will not be ideal state, conducting
It cannot all be completed moment with shutdown, each switching group caused to have certain intrinsic turn-on time and intrinsic turn-off time.
Thus, it is supposed that the switch used in the present invention is same switch, thus the intrinsic turn-on time of switching group and
Turn-off time can be considered a constant respectively, i.e., be tc0 and ts0 respectively.
The rising edge of negative high voltage pulse output realizes the process of parametrization as shown in figure 3, its essence is by controlling signal
The conducting sequential of switching group in switch module is controlled.Can be m switching group when generating the rising edge of negative high voltage pulse
It is in working condition, can also be that only a fraction switching group is in running order.If in running order in switch module
Switching group number be n (n≤m), the intrinsic turn-on time per level-one switching group is constant tc0, is arranged in parameter input module
Rising edge parameter be Tr (Tr >=tc0), then drive control module can be produced by processing to the rising edge parameter Tr received
The roads n control the signal g1, g2 ..., g (n-1) of raw character pair, gn, and it is in running order to be sent respectively to every level-one
The control terminal G1, G2 ..., G (n-1) of switching group, Gn.It is given respectively per the in running order switch of level-one per control signal all the way
One conducting delay parameter tcx (x=1,2 ..., n) of group distribution, makes switching group start to sequentially turn on according to respective delay.
Specifically sequential is：It is begun to turn in the 1st switching group of t=tc1 moment, it is fully on by time tc0, at this time
Moment is t=tc1+tc0；It is begun to turn in the 2nd switching group of t=tc1+tc2 moment, it is fully on by time tc0, at this time
At the time of be t=tc1+tc2+tc0；And so on it is found that at the time of n-th of (i.e. the last one) switching group is fully on be t
=tc1+tc2+ ...+tcn+tc0.Therefore, it is begun to turn on from the 1st switching group, also begins to be connected and pass through to n-th of switching group
When time tc0 is fully on, the time used is the rising edge Tr of negative high voltage pulse, i.e. Tr=tc2+tc3+ ...+tcn+
tc0。
When generating the rising edge of negative high voltage pulse, control signal can be grayscales uneven distribution to the distribution of conducting delay,
Can also be to evenly distribute.Fig. 4 show that n switching group is in running order, and the negative height that delay evenly distributes is connected
Press rising edge of a pulse parameterized procedure (n≤m).It is tc that control signal, which gives the conducting delay parameter matched per level-one group of switches,.
The specific sequential of switching group work is to be begun to turn in the 1st switching group of t=tc moment, fully on by time tc0, this
When at the time of be t=tc+tc0；It is begun to turn in the 2nd switching group of t=2tc moment, it is fully on by time tc0, this
When at the time of be t=2tc+tc0；And if so on it is found that there is n switching group in running order, n-th (i.e. last
It is a) switching group it is fully at the time of be t=ntc+tc0.Therefore, it begins to turn on from the 1st switching group, is switched to n-th
When group also begins to be connected and process time tc0 is fully on, the time used is the rising edge Tr of negative high voltage pulse, i.e. Tr=
(n-1)·tc+tc0.The rising edge of the negative high voltage pulse of output can be in a certain range it is continuously adjustable, can also right and wrong
Continuously adjustable.
Negative high voltage pulse output failing edge realize parametrization process as shown in figure 5, its principle and rising edge parameter
Change method is similar.Similarly, when generating the failing edge of negative high voltage pulse, it can be that m switching group is in working condition, also may be used
To be that only a fraction switching group is in running order.If in switch module in running order switching group number be n (n≤
M), the intrinsic turn-off time per level-one switching group is constant ts0, and the failing edge parameter being arranged in parameter input module is Tf (Tf
>=ts0), then drive control module will produce the roads the n control of character pair by the processing to the failing edge parameter Tf received
Signal g1, g2 ..., g (n-1), gn, and it is sent respectively to the control terminal G1 of the in running order switching group of every level-one,
G2 ..., G (n-1), Gn.Given respectively per control signal all the way per level-one group of switches with a shutdown delay parameter tsy (y=1,
2 ..., n), so that switching group is turned off successively according to respective delay beginning.Specific sequential is, in the 1st switching group of t=ts1 moment
Begin to turn off, complete switched off by time ts0, at this time at the time of be t=ts1+ts0；In the 2nd switch of t=ts1+ts2 moment
Group is begun to turn off, and is complete switched off by time ts0, at this time at the time of be t=ts1+ts2+ts0；And so on it is found that n-th
It is t=ts1+ts2+ ...+tsn+ts0 at the time of (i.e. the last one) switching group complete switches off.Therefore, it is opened from the 1st switching group
Begin to turn off, when also beginning to turn off and complete switch off by time ts0 to n-th of switching group, the time used is negative high voltage arteries and veins
The failing edge Tf of punching, i.e. Tf=ts2+ts3+ ...+tsn+ts0.
When generating the failing edge of negative high voltage pulse, control signal can be grayscales uneven distribution to the distribution of shutdown delay,
Can also be to evenly distribute.Fig. 6 show that n switching group is in running order, and turns off the negative height that delay evenly distributes
Press pulse falling edge parameterized procedure (n≤m).It is ts that control signal, which gives the shutdown delay parameter matched per level-one group of switches,.
The specific sequential of switching group work is to begin to turn off in the 1st switching group of t=ts moment, complete switched off by time ts0, this
When at the time of be t=ts+ts0；It begins to turn off in the 2nd switching group of t=2ts moment, is complete switched off by time ts0, this
When at the time of be t=2ts+ts0；And if so on it is found that there is n switching group in running order, n-th (i.e. last
It is a) switching group is t=nts+ts0 at the time of complete switch off.Therefore, it begins to turn off from the 1st switching group, is switched to n-th
When group also begins to turn off and complete switch off by time ts0, the time used is the failing edge Tf of negative high voltage pulse, i.e. Tf=
(n-1)·ts+ts0.Equally, the failing edge of the negative high voltage pulse of output can be in a certain range continuously adjustable, also may be used
To be non-continuously adjustable.In addition, the timing control of switching group turn-on and turn-off can be arbitrary, i.e., first conducting is opened
Guan Zuke is turned off with first, may not be.
The voltage magnitude of negative high voltage pulse output realizes the process of parametrization as shown in fig. 7, its essence is believed by controlling
Number in switch module switching group carry out voltage distribution.Can be that m switching group is equal during reaching certain voltage amplitude
It is in running order, can also be that only a fraction switching group is in running order.If in running order in switch module
Switching group number is n (n≤m), and the voltage magnitude parameter being arranged in parameter input module is Vout, then drive control module passes through
Signal is controlled to generating the roads n after the processing of voltage magnitude parameter Vout, is respectively in voltage magnitude parametric distribution to per level-one
The switching group of working condition makes n grades of switching groups in the negative electricity for generating respective magnitudes respectively outside plus under the driving of direct-current working volts
It presses (n≤m).Due to n grades of switching group SW1, SW2 ..., SW (n-1), SWn is cascade, therefore the n switching group generation that suspends
Negative voltage stacks up, and the negative high voltage pulse of voltage magnitude identical as set parameter Vout is finally generated in output end.Reach
During certain voltage amplitude, voltage magnitude parameter can also can uniformly be divided in the switching group of work with grayscales uneven distribution
Match.Can also be identical to which the voltage magnitude that each in running order switching group generates can be different.If
Voltage magnitude parameter grayscales uneven distribution, then the negative voltage amplitude that the 1st grade of switching group generates is Va1, what the 2nd grade of switching group generated
Negative voltage amplitude is Va2, and so on, the negative voltage amplitude that n-th grade of switching group generates is Van (n≤m).What is exported at this time is negative
The voltage magnitude of high-voltage pulse is Vout=Va1+Va2+ ...+Van；If voltage magnitude parameter evenly distributes, per level-one
The negative voltage amplitude that switching group generates is Va.The voltage magnitude of the negative high voltage pulse exported at this time is Vout=nVa.Each
The negative voltage amplitude that switching group generates can be continuously adjustable, can also be discontinuous adjustable, therefore be exported after being superimposed
The voltage magnitude of negative high voltage pulse can be in a certain range continuously adjustable, can also be discontinuous adjustable.
The repetition rate of negative high voltage pulse output realizes the process of parametrization as shown in figure 8, its essence is believed by controlling
Number the break-make frequency of the switching group in switch module is controlled.Since all switches used in the same switching group are
Same switch, therefore the turn-on and turn-off performance switched in every level-one switching group is identical, can reach same conducting
With the frequency of shutdown.The repetition rate parameter for the negative high voltage pulse output being arranged in setting parameter input module is f0, drive control
Module is passed through to repetition rate parameter f0Processing after, identical control signal periodically is sent to switch module, transmission
Frequency is also f0.Since within each period, the delayed data of control switching group turn-on and turn-off is solid in the roads n control signal
Fixed, therefore n in running order switching group is upon the reception of control signals, it can be according to frequency f0Periodically conducting and
Shutdown, and a fixed negative high voltage pulse can be all often generated by primary complete turn-on and turn-off process, finally defeated
Outlet generates and set parameter f0The negative high voltage pulse of identical repetition rate.The repetition rate of the negative high voltage pulse of output is one
Determine in range be continuously adjustable, can also be discontinuous adjustable.
The pulse width of negative high voltage pulse output realizes the process of parametrization as shown in figure 9, its essence is believed by controlling
Number the conduction duration of the switching group in switch module is controlled.The negative high voltage pulse being arranged in setting parameter input module
The pulse width parameter of output is Tw, and the roads n are generated after drive control module is handled and control signal, respectively by conduction duration
Parametric distribution is to n grades of in running order switching groups.After the rising edge process of negative high voltage pulse, all working is opened
Pass group is in fully on state, at this time at the time of be t=tc1+tc2+ ...+tcn+tc0, negative high voltage pulse output electricity
Pressure amplitude value theoretically reaches setting value Vout.Assuming that also first shutdown of the switching group of first conducting, then a length of when maintaining
It is t=tc1+tc2+ ...+tcn+tc0+Tw at the time of the 1st switching group is begun to turn off after the conduction duration of Tw, the 2nd
It is t=tc1+tc2+ ...+tcn+tc0+Tw+ts2 ... ... at the time of a switching group is begun to turn off, then switchs for n-th
It is t=tc1+tc2+ ...+tcn+tc0+Tw+ts2+ts3+ ...+tsn at the time of group is begun to turn off, the switching group of all working is equal
It is at the time of complete switching off：
T=tc1+tc2+ ...+tcn+tc0+Tw+ts2+ts3+ ...+tsn+ts0；Above procedure makes negative high voltage impulse wave
Shape generates failing edge.Finally, the output end of switch module generates the negative high voltage pulse with set parameter Tw same pulse widths.
The pulse width of the negative high voltage pulse of output can be in a certain range continuously adjustable, can also be discontinuous adjustable.
In the demand of practical application, it is sometimes desirable to export the negative high voltage pulse of finite impulse number, the process is substantially
It is that drive control module counts the control signal of generation.The negative high voltage pulse output being arranged in setting parameter input module
Pulse number parameter is N, and drive control module starts counting up while sending control signal to switch module after treatment.
Pass through a complete period when controlling signal, switching molding switching group in the block is made to complete primary complete turn-on and turn-off mistake
Journey, when generating a negative high voltage pulse, count is incremented；Since control signal is sent periodically to switch module, switching group is not
The process for repeating turn-on and turn-off disconnectedly counts incremented by successively to periodically generate negative high voltage pulse.When count value reaches
When setting value N, the control signal that drive control module generates makes switch module no longer generate negative high voltage pulse, and final output is born
High-voltage pulse number is identical as set parameter N.If the pulse number to output is not required, controls signal and can control and hold
It closes module and negative high voltage pulse is constantly exported with certain frequency.The pulse number of the negative high voltage pulse of output in a certain range may be used
Can also be discontinuous adjustable to be continuously adjustable, it is infinite that pulse number can be approximately considered after more than the range
It is multiple.
By the parametric method of the above-mentioned negative high voltage pulse power can be seen that one of drive control module generation it is complete
Control signal include at least the conducting delay matched to group of switches in switch module, shutdown delay, conduction duration and electricity
Pressure amplitude value parameter information.It can be periodic to control signal, can also be acyclic.Periodically control signal also wraps
Containing specific repetition rate parameter information, and pulse number can be counted while generating negative high voltage pulse output
Number.Under the control and adjusting of control signal, the rising edge of the negative high voltage pulse of output, voltage magnitude, repeats frequency at failing edge
The waveform parameters such as rate, pulse width and pulse number can be in a certain range continuously adjustable, can also be it is discontinuous can
It adjusts.
The foregoing is merely some embodiments of the present invention, are not intended to restrict the invention, it is all in spirit of that invention and
Within principle, 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 negative high voltage Pulased power supply unit of Parameter adjustable, which is characterized in that including parameter input module, drive control mould
Block, high voltage direct current source module and switch module；
Parameter input module, for required negative high voltage impulse waveform parameter to be arranged and is sent to drive control module；Driving control
Molding block for by the negative high voltage impulse waveform parameter processing of setting and being converted into the control signal of switch module, and is sent to
Switch module；High voltage direct current source module, for providing direct-current working volts to switch module；Switch module, for receiving
To control signal make corresponding response, and export the negative high voltage pulse for meeting set negative high voltage impulse waveform parameter；
Wherein, the switch module, by suspending, cascade m grades of switching group SWi is formed, wherein i=1,2 ..., m；M is more than 2；It drives
Dynamic control module, can export the roads m control signal, and the roads m control signal is controlled and adjusted to the working condition of m grades of switching groups
Section, changes the negative high voltage impulse waveform parameter of final output.
2. the negative high voltage Pulased power supply unit of Parameter adjustable according to claim 1, which is characterized in that switching molding is in the block
Per level-one switching group, there are one the control terminals for receiving control signal, are phases to the response for controlling signal per level-one switching group
It is mutually independent.
3. the negative high voltage Pulased power supply unit of Parameter adjustable according to claim 1, which is characterized in that negative high voltage impulse wave
Shape parameter includes rising edge, failing edge, voltage magnitude, repetition rate, pulse width and pulse number, and above-mentioned negative high voltage pulse
Waveform parameter is continuously adjustable or discontinuous adjustable.
4. the negative high voltage Pulased power supply unit of Parameter adjustable according to claim 3, which is characterized in that the roads m control signal
To m group of switches with certain conducting delay and shutdown delay, m switching group is made to sequentially turn on and close according to corresponding sequential
It is disconnected, to make negative high voltage pulse output that there is corresponding rising edge and failing edge；Wherein：
During generating rising edge, all work or part work m switching group, and conducting delay is in the switching group of work
It evenly distributes or grayscales uneven distribution；
During generating failing edge, all work or part work m switching group；Shutdown delay is in the switching group of work
It evenly distributes or grayscales uneven distribution.
5. the negative high voltage Pulased power supply unit of Parameter adjustable according to claim 3, which is characterized in that the roads m control signal
Match certain voltage magnitude parameter to m group of switches, so that m switching group is generated under the driving of high-voltage DC power supply corresponding
Voltage, and make negative high voltage pulse output that there is corresponding voltage magnitude by overlapped in series；Wherein, certain voltage amplitude is being generated
During, m switching group completely or partially works；Voltage magnitude parameter evenly distributes or non-homogeneous in the switching group of work
Distribution.
6. the negative high voltage Pulased power supply unit of Parameter adjustable according to claim 3, which is characterized in that control signal is to work
The group of switches of work matches certain conduction duration parameter, and the switching group of all working is made to remain identical after all turning on
Then conduction duration starts to turn off successively again, negative high voltage pulse output is made to have corresponding pulse width；
According to the frequency of the control signal of reception, the switching group of all working makes negative height according to certain period turn-on and turn-off
Press pulse output that there is corresponding repetition rate；
If being provided with determining output pulse number, drive control module can be counted, when the pulse number of generation reaches institute
Stop output negative high voltage pulse when the pulse number of setting, makes negative high voltage pulse output that there is corresponding pulse number.
7. the negative high voltage Pulased power supply unit of Parameter adjustable according to claim 1, which is characterized in that drive control module
The control signal of generation is periodicity, aperiodicity, partial period periodicity or partial period aperiodicity；
The control signal that drive control module generates is the single control signal for possessing whole negative high voltage impulse waveform parameter informations,
Or for possess respectively each parameter information a series of control signals summation；
By changing any one or more numerical value of set parameter in parameter input module, drive control module is generated
Control signal carry out instant modification and adjusting.
8. the negative high voltage Pulased power supply unit of Parameter adjustable according to claim 1, which is characterized in that drive control module
The processing chip used for on-site programmable gate array FPGA, complex programmable logic device (CPLD), application-specific integrated circuit ASIC,
Digital signal processing chip DSP, microcontroller or arm processor.
9. the parametrization adjusting side of the negative high voltage Pulased power supply unit of the Parameter adjustable based on any one of claim 1~8
Method, which is characterized in that include the following steps：
Step 1：The setting and transmission of negative high voltage impulse waveform parameter
User according to demand parameter input module setting negative high voltage pulse export waveform parameter, including rising edge, failing edge,
Voltage magnitude, repetition rate, pulse width and pulse number, after being provided with, parameter input module joins the waveform set
Number information is sent to drive control module；
Step 2：The processing of parameter information and the generation and transmission for controlling signal
Drive control module is located respectively after receiving the waveform parameter sent by parameter input module, to parameters
Reason generates the roads m control signal g1, g2 ..., g (m-1), gm, and sends it to switch module, controls the m cascade that suspends respectively
Switching group SW1, SW2 ..., SW (m-1), the working condition of SWm；
Step 3：The output of the control and negative high voltage pulse of switching group working condition
The control terminal G1, G2 ..., G (m-1) of m switching group in switch module, Gm are received respectively to be sent by drive control module
The roads m control signal g1, g2 ..., g (m-1), and gm makes this m switching group have different conducting delays, shutdown delay and conducting
Duration, to according to certain sequential turn-on and turn-off；Meanwhile high voltage direct current source module is to needed for switch module offer
Direct-current working volts, the negative high voltage pulse that is consistent with set waveform parameter is finally generated by switch module and is exported, and this
Whole waveform parameters of negative high voltage pulse output can continuously or discontinuously be adjusted.
10. parametrization adjusting method according to claim 9, which is characterized in that change the numerical value of arrange parameter, parameter is defeated
Entering the waveform parameter information of module transmission can change immediately therewith；When the parameter information that parameter input module is sent changes
When change, the control signal that drive control module generates makes summary responses, i.e., by changing set ginseng in parameter input module
Several any one or more numerical value, the control signal that can be generated to drive control module carry out instant modification and tune
Section.
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| CN108462482A (en) * | 2018-02-10 | 2018-08-28 | 西安交通大学 | A kind of device and method generating bipolarity high-voltage pulse |
| CN109462385A (en) * | 2018-10-26 | 2019-03-12 | 西安交通大学 | A kind of device and method of high-voltage pulse parameter compiling |
| CN109523606A (en) * | 2018-10-26 | 2019-03-26 | 西安交通大学 | A kind of editing device and method of high voltage pulse waveform |
| CN109660122A (en) * | 2018-12-06 | 2019-04-19 | 兰州空间技术物理研究所 | A kind of caesium clock multiplier adjustable high voltage power supply circuit based on shunting method of adjustment |
| CN111980825A (en) * | 2020-08-20 | 2020-11-24 | 中国空气动力研究与发展中心超高速空气动力研究所 | Fuel mixing enhancement device and method for scramjet engine |
| CN112671234A (en) * | 2020-12-29 | 2021-04-16 | 中国电子科技集团公司第十八研究所 | High-power digital pulse power supply time sequence control system and control method |
| CN112767673A (en) * | 2020-12-29 | 2021-05-07 | 中国电子科技集团公司第十八研究所 | Distributed control system for high-power digital pulse power supply |
| CN112888129A (en) * | 2020-12-14 | 2021-06-01 | 北京东方计量测试研究所 | Modulation method and device for homogenizing atmospheric gas discharge |
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| CN108462482A (en) * | 2018-02-10 | 2018-08-28 | 西安交通大学 | A kind of device and method generating bipolarity high-voltage pulse |
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| CN109523606A (en) * | 2018-10-26 | 2019-03-26 | 西安交通大学 | A kind of editing device and method of high voltage pulse waveform |
| CN109660122A (en) * | 2018-12-06 | 2019-04-19 | 兰州空间技术物理研究所 | A kind of caesium clock multiplier adjustable high voltage power supply circuit based on shunting method of adjustment |
| CN111980825A (en) * | 2020-08-20 | 2020-11-24 | 中国空气动力研究与发展中心超高速空气动力研究所 | Fuel mixing enhancement device and method for scramjet engine |
| CN111980825B (en) * | 2020-08-20 | 2021-06-04 | 中国空气动力研究与发展中心超高速空气动力研究所 | Fuel mixing enhancement device and method for scramjet engine |
| CN112888129A (en) * | 2020-12-14 | 2021-06-01 | 北京东方计量测试研究所 | Modulation method and device for homogenizing atmospheric gas discharge |
| CN112671234A (en) * | 2020-12-29 | 2021-04-16 | 中国电子科技集团公司第十八研究所 | High-power digital pulse power supply time sequence control system and control method |
| CN112767673A (en) * | 2020-12-29 | 2021-05-07 | 中国电子科技集团公司第十八研究所 | Distributed control system for high-power digital pulse power supply |
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