CN109462385B - Device and method for compiling high-voltage pulse parameters - Google Patents
Device and method for compiling high-voltage pulse parameters Download PDFInfo
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Abstract
The invention discloses a device for compiling high-voltage pulse parameters, which comprises a data receiving module: the data processing device is used for identifying data transmitted by the upper computer according to a communication protocol customized by the upper computer; a waveform compiling module: compiling the data received by the data receiving module to obtain the voltage amplitude, the rising and falling time, the overshoot and the load parameters of the high-voltage pulse waveform, and simultaneously realizing the repetition, circulation and jump of the high-voltage pulse waveform; a control timing generation module: and calculating and distributing control time sequences of all switches according to the switch number of the high-voltage pulse power supply and the voltage amplitude, rising and falling time, overshoot and load parameters of the high-voltage pulse waveform, and outputting control signals required by the high-voltage pulse generating circuit to enable the high-voltage pulse generating circuit to generate the required high-voltage pulse waveform. The invention has simple structure and strong expandability, can realize various adjustments of high-voltage pulse waveforms, and has very wide application field.
Description
Technical Field
The invention belongs to the technical field of high-voltage pulse power, and particularly relates to a device and a method for compiling high-voltage pulse parameters.
Background
The pulse power technology is more and more widely applied to the frontier fields of national defense and civil use, such as material surface treatment, environmental pollution treatment, biomedicine, plasma ignition, auxiliary combustion and the like. The existing high-voltage pulse power supply can generally output periodic or regular pulse waveforms, and related parameters such as pulse width, voltage amplitude, frequency and the like of the high-voltage pulse waveforms can be adjusted within a certain range according to requirements. In practical application, however, the high-voltage pulse power supply is required to output a special and arbitrary high-voltage pulse waveform, that is, a pulse voltage amplitude, a pulse width, a rising and falling time, a frequency, a pulse number, a waveform state of the pulse waveform, a load and matching characteristics of an output pulse, and the like, and the required high-voltage pulse waveform can be obtained by setting parameters and an output format of the high-voltage pulse waveform according to any combination.
Disclosure of Invention
The invention aims to provide a device and a method for compiling high-voltage pulse parameters, which are used for solving the problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a device for compiling high-voltage pulse parameters comprises a data receiving module, a waveform compiling module and a control time sequence generating module. The data receiving module identifies data transmitted by the upper computer according to a communication protocol customized by the upper computer; the waveform compiling module compiles the received waveform data and simultaneously realizes the functions of waveform repetition, circulation, skip and the like; the control time sequence generation module calculates and distributes the control time sequence of each switch according to the switch number of the high-voltage pulse power supply and the parameters of the voltage amplitude, the rising time, the falling time, the overshoot, the load and the like of the high-voltage pulse waveform, outputs a control signal required by the high-voltage pulse generation circuit and enables the high-voltage pulse generation circuit to generate the required high-voltage pulse waveform.
Furthermore, the data receiving module identifies the number of switches, n waveform parameters and m functional instructions, wherein n is greater than or equal to 100 and is greater than or equal to 1, m is greater than or equal to 100 and is greater than or equal to 1, the waveform parameters comprise voltage amplitude, pulse width, rising and falling time of waveforms, overshoot, load and the like, and the functional instructions comprise repetition, circulation, skip and the like of the waveforms. The number of switches and each waveform parameter and function command are preceded by a specific identifier, 1+ n + m is k, 201 is greater than or equal to k is greater than or equal to 3, and there are k different identifiers.
Further, the waveform data received from the upper computer in the waveform compiling module is stored in the RAM in the form of 'waveform Wi + time Ti + instruction Ci + instruction data Di', wherein i is larger than or equal to 0, and Wi, Ti, Ci and Di represent the waveform data stored in the address i. The waveform Wi is the number of closed switch channels of the high-voltage pulse power supply, and the voltage amplitude of the waveform is controlled by the number of closed switch channels; time Ti is the output time of waveform Wi; the instruction Ci is a functional instruction such as waveform repetition, circulation, jump and the like; the instruction data Di is an accompanying parameter of the storage instruction Ci.
Further, the size of the RAM in the waveform compiling module is xy bits, where x represents the size of the memory occupied by each group of waveform data, and the memories occupied by Wi, Ti, Ci, and Di are x1, x2, x3, and x4, where x is x1+ x2+ x3+ x 4; y represents the number of waveform data sets that can be stored, and the size is determined by the total RAM memory and the value of x.
Further, the bit width occupied by the waveform Wi is x1, which is determined by the number of switch channels N1 of the high voltage pulse power supply, and 2x1N1, N1 is more than or equal to 500 and more than or equal to 1, and x1 is more than or equal to 9 and more than or equal to 1; the bit width occupied by time Ti is x2, determined by the number of output-sustaining clocks N2 of Wi, and 2x2Not less than N2, due to the time needed for reading and address jumping of the memory, 10000 not less than N2 not less than 3, 14 not less than x2 not less than 2; the bit width occupied by instruction Ci is x3, determined by the number of functional instructions N3, and 2x3More than or equal to N3, more than or equal to 100, more than or equal to N3, more than or equal to 0, and more than or equal to 7, more than or equal to x3, more than or equal to 0; the bit width occupied by the instruction Data Di is x4 and comprises Data1 and Data2, Data1 is used for storing the subtypes or labels of the instructions, the number range of the subtypes or labels of the instructions is 0-100, the occupation width range is 0-7 bits, Data2 is used for storing Data such as cycle times, jump addresses and the like of the instructions, the cycle times range is 0-1000000, the occupation width range is 0-20 bits, and therefore 27 is not less than x4 and not less than 0. x is x1+ x2+ x3+ x4, and 57 is more than or equal to x is more than or equal to 3.
Further, the control timing generation module needs to equally distribute the voltage amplitude of the high voltage pulse to each switching channel to control the rising edge and the falling edge of the output waveform, and the timing of each switching channel includes the turn-on time and the turn-off time of the switching channel.
Furthermore, the opening time and the closing time of the switch channel are given by empirical formulas obtained by fitting experimental data, the opening time and the closing time of one switch channel are respectively determined by two empirical formulas, and the empirical formula models are t ═ p1+ p2 a + p 3b + p4 c + p5 a2+p6·b2+p7·c2+ p8 a · b + p9 · a · c + p10 · b · c + p11 · a · b · c, but the values at the opening times and the closing times p1 to p11 are different, the values p1 to p11 are found by fitting known data, and 10-7≤ p1、p2、...、p11≤107Where a is the voltage amplitude, b is the load impedance value, and c is the up/down edge time.
A method of high voltage pulse parameter compilation, comprising the steps of:
the method comprises the following steps: the data receiving module firstly identifies identifiers according to a communication protocol specified by an upper computer, then identifies specific data after different identifiers, and finally stores all waveform data in an RAM in the form of 'waveform Wi + time Ti + instruction Ci + instruction data Di';
step two: the waveform compiling module is used for compiling the waveform voltage amplitude and the pulse width by reading waveform data in the RAM;
step three: the control time sequence generation module realizes the compiling of each switch time sequence through the number of switches and parameters such as voltage amplitude, rising and falling time, overshoot and load;
step four: and the high-voltage pulse generating circuit is controlled to generate the required high-voltage pulse waveform by combining the compiling of the waveform voltage amplitude and the pulse width by the waveform compiling module and the compiling of the time sequence of each switch by the control time sequence generating module.
Further, the second step is specifically as follows: when the waveform is compiled, the waveform data in the address i is sequentially read from the RAM, the Wi waveform is output for the time Ti, and then the waveform data of the next group is read according to the instruction in the Ci and the instruction data in the Di to the corresponding address.
Further, the third step is specifically: the empirical formulas of each high-voltage pulse power supply are different, firstly 10% of experimental data is measured and fitted with the empirical formulas to obtain the optimal solution of p 1-p 11, then the values of a, b and c are brought in the compilation of the control time sequence, and the control time sequence of each switch is calculated by using the empirical formulas.
Compared with the prior art, the invention has the following beneficial technical effects:
the pulse parameter compiling device compiles waveform data transmitted by an upper computer and can output periodic or non-periodic high-voltage pulse waveforms with any pulse width and any pulse voltage amplitude. The output high-voltage pulse can be a unipolar positive/negative pulse or a bipolar pulse; the wave may be a rectangular wave or a triangular wave. The pulse width and the voltage amplitude of each pulse in any high-voltage pulse output by the invention can be the same or different, the structure is simple, any high-voltage pulse which is stable and can be repeatedly output can be obtained, and the invention has very wide application field.
Furthermore, the waveform compiling module provided by the invention is added with functions of waveform repeating, circulating and the like on the basis of waveform compiling, can be used for repeatedly compiling a section of waveform data edited by an upper computer, and can be used for setting the times of repeated compiling; loop compiling can also be carried out on a certain part in a section of waveform data, and both the number of loop compiling and the type of loop compiling can be set; it can jump to any address in a segment of waveform data at any time during compiling, and continue compiling from this address. The functional instructions can be increased or decreased according to the needs of a user, the workload of waveform editing of an upper computer is reduced due to the application of the functional instructions, and meanwhile, more complex high-voltage pulse waveforms can be realized, so that the application of a high-voltage pulse power supply is more flexible and wide.
According to the method, known experimental data are used for fitting an empirical formula, and the switching channel time sequence data under all other conditions can be obtained through the empirical formula only by measuring about 10% of the switching channel time sequence data, so that the problem of low efficiency of manually debugging the upper edge and the lower edge of the high-voltage pulse waveform is solved.
Drawings
FIG. 1 is a block diagram of the apparatus of the present invention;
FIG. 2 is a schematic diagram of the parameters of a high voltage pulse waveform according to the present invention;
FIG. 3 is a flow chart of the control switch timing generation of the present invention;
FIG. 4 is a flow chart of high voltage pulse waveform compilation according to an embodiment of the present invention.
Detailed Description
The present invention will now be described in further detail, with reference to the attached drawings, which are illustrative, but not limiting, of the present invention:
referring to fig. 1, a device for realizing high voltage pulse parameter compilation, the device comprises a data receiving module, a waveform compiling module and a control time sequence generating module, wherein the data receiving module identifies data transmitted from an upper computer according to a communication protocol customized by the upper computer; the waveform compiling module compiles the received waveform data and simultaneously realizes the functions of waveform repetition, circulation, skip and the like; the control time sequence generation module calculates and distributes the control time sequence of each switch according to the switch number of the high-voltage pulse power supply and the parameters of the voltage amplitude, the rising time, the falling time, the overshoot, the load and the like of the high-voltage pulse waveform, outputs a control signal required by the high-voltage pulse generation circuit and enables the high-voltage pulse generation circuit to generate the required high-voltage pulse waveform. The waveform compiling module and the control time sequence generating module jointly act to determine the waveform state output by the high-voltage pulse power supply.
The data receiving module identifies the number of switches, n waveform parameters and m functional instructions, wherein n is greater than or equal to 100 and is greater than or equal to 1, m is greater than or equal to 100 and is greater than or equal to 1, the waveform parameters comprise voltage amplitude, pulse width, rising and falling time of waveforms, overshoot, load and the like, and the functional instructions comprise waveform repetition, circulation, skip and the like. The number of switches and each waveform parameter and function command are preceded by a specific identifier, 1+ n + m is k, 201 is greater than or equal to k is greater than or equal to 3, and there are k different identifiers. Waveform data received from the upper computer is stored in the RAM in the form of 'waveform Wi + time Ti + instruction Ci + instruction data Di', wherein i is larger than or equal to 0, and Wi, Ti, Ci and Di represent the waveform data stored in the address i. The waveform Wi is the number of closed switch channels of the high-voltage pulse power supply, and the voltage amplitude of the waveform is controlled by the number of closed switch channels; time Ti is the output time of waveform Wi; the instruction Ci is a functional instruction such as waveform repetition, circulation, jump and the like; the instruction data Di is an accompanying parameter of the storage instruction Ci. The size of the RAM is xy bits, wherein x represents the memory size occupied by each group of waveform data, Wi, Ti, Ci and Di are x1, x2, x3 and x4 respectively, and x is 1+ 2+ x3+ x 4; y represents the number of waveform data sets that can be stored, and the size is determined by the total RAM memory and the value of x.
The control timing generation module needs to equally distribute the voltage amplitude of the high-voltage pulse to each switching channel to control the rising edge and the falling edge of the output waveform, and the timing of each switching channel comprises the opening time and the closing time of the switching channel. The opening time and the closing time of the switch channel are given by empirical formulas obtained by fitting experimental data, the opening time and the closing time of one switch channel are respectively determined by two empirical formulas, and the empirical formula models are t ═ p1+ p2 a + p 3b + p4 c + p5 a2+p6·b2+p7· c2+ p8 a · b + p9 · a · c + p10 · b · c + p11 · a · b · c, but the values at the opening times and the closing times p1 to p11 are different, the values p1 to p11 are found by fitting known data, and 10-7≤ p1、p2、...、p11≤107Where a is the voltage amplitude, b is the load impedance value, and c is the up/down edge time.
A method of high voltage pulse parameter compilation, comprising the steps of:
the method comprises the following steps: the data receiving module firstly identifies identifiers according to a communication protocol specified by an upper computer, then identifies specific data after different identifiers, and finally stores all waveform data in an RAM in the form of 'waveform Wi + time Ti + instruction Ci + instruction data Di';
step two: and the waveform compiling module is used for compiling the waveform voltage amplitude and the pulse width by reading waveform data in the RAM. The method specifically comprises the following steps: when waveform compiling is carried out, waveform data in an address i are sequentially read from the RAM, the Wi waveform is output for Ti time at first, and then the waveform data of the next group are read according to the instruction in Ci and the instruction data in Di;
step three: the control time sequence generation module realizes the compiling of each switch time sequence through the number of switches and parameters such as voltage amplitude, rising and falling time, overshoot and load. The method specifically comprises the following steps: the empirical formulas of each high-voltage pulse power supply are different, firstly 10% of experimental data is measured and fitted with the empirical formulas to obtain the optimal solution of p 1-p 11, then the values of a, b and c are brought in the compilation of the control time sequence, and the control time sequence of each switch is calculated by using the empirical formulas.
Step four: and the high-voltage pulse generating circuit is controlled to generate the required high-voltage pulse waveform by combining the compiling of the waveform voltage amplitude and the pulse width by the waveform compiling module and the compiling of the time sequence of each switch by the control time sequence generating module.
Referring to fig. 2, a schematic diagram of high voltage pulse waveform parameters is shown, wherein an AB segment represents a voltage amplitude, a CD segment represents a pulse width, and a certain waveform state is determined by the pulse width of the voltage amplitude. The high-voltage pulse power supply comprises N1 switch channels, 200 & gtN 1 & gt1, and in order to control the rising edge and the falling edge of an output waveform, the voltage amplitude of the high-voltage pulse is evenly distributed to each switch channel, the number of the closed switch channels determines the magnitude of the voltage amplitude, namely the voltage amplitude is equivalent to the number of the switch channels, namely the waveform Wi in the waveform compiling module. The pulse width indicates the time for the waveform state to be maintained, i.e. the time Ti in the waveform compiling module. In the waveform of an AE section in the figure, the slope of the line segment is zero or infinite, namely the time of the upper edge and the lower edge is 0, and the voltage amplitude and the pulse width can be directly read; for the EF and GH segment waveforms, there is a slope in the segment, i.e. the rising edge or falling edge time is not zero, and then the EF segment waveform is equally divided into 5 segment waveforms with a slope of zero and a slope of infinity according to the voltage amplitude of the FG segment (here assumed to be 5), i.e. this segment is equivalent to 5 waveform states.
Referring to fig. 3, a flow chart is generated for controlling the switch timing, empirical formulas of each high-voltage pulse power supply are different, firstly, about 10% of experimental data is measured and is substituted into a formula model, an empirical formula is fitted, namely, the optimal solution of p 1-p 11 is obtained, and then, in control timing compilation, the empirical formula is used for calculating and obtaining the control timing of each switch according to parameters such as voltage amplitude, load impedance values, upper and lower edge time and the like sent by an upper computer.
Examples
Table 1 shows the RAM storage specification of the high voltage pulse waveform compiling module, and the RAM size used in this embodiment is set to 40 × 2048 bits. The bit width occupied by Wi is determined by the number of switching channels of the high-voltage pulse power supply, and the high-voltage pulse power supply is assumed to have 24 switching channels, namely 25 switching states, which can be expressed by 5 bits; ti is set to be 10bits, the time unit of each state is the clock number, the maximum unit state is 1023 clocks, and the minimum state time is 3 clocks because the time is needed for reading the memory and jumping the address; the bit width Ci is determined by the number of functional instructions, and since there are 6 functional instructions in the embodiment, the bit width is 3bits, and six instructions of "empty", "repeat", "loop", "jump", "detail" and "end" are denoted by 000, 001, 010, 011, 100, and 111, respectively. The 'empty' instruction indicates that waveform data in a next address is read sequentially for output after a current waveform is output, the 'repeat' instruction indicates that a certain section of waveform is repeated, the 'loop' instruction indicates that a certain section of waveform is circulated, the 'jump' instruction indicates that a certain address is jumped to, the 'detail' instruction indicates that the waveform with the waveform state less than 3 clocks is compiled, and the 'end' instruction indicates that the waveform is output; data1 in Di occupies 2bits and is used for storing subtype or mark of an instruction, wherein Data1 of a loop instruction represents a loop mark and corresponds to different loops, nesting of 4 loops can be realized at most, Data1 of a jump instruction represents a jump type and corresponds to jumps under different conditions, and 4 jumps can be realized at most; data2 in Di occupies 20bits and is used for storing Data such as loop times and jump addresses of the instructions, Data2 of repeated instructions represents the repeated times, Data2 of loop instructions represents the loop times and offset addresses, Data2 of jump instructions represents the jump addresses, and Data2 of detail instructions represents waveform states of 4 5 bits.
TABLE 1 high-voltage pulse waveform compiling Module RAM storage instruction sheet
Referring to fig. 4, in order to compile a flow chart of a high-voltage pulse waveform, when a program runs, a waveform Wi and time Ti in an address i are sequentially read from a RAM, a corresponding waveform is output, then an instruction Ci in the address i is read, the content of the instruction Ci is judged, and if Ci is a null instruction, data of a next address is continuously read; if Ci is a repeat instruction, reading data2 data (repeat number M1), repeatedly outputting M1 times for the waveform of the current address, and then reading the data of the next address; if Ci is a loop instruction, reading data1 (loop index) and data2 data (loop times M2 and offset address a1), wherein the address of the loop is the current address minus the offset address, when M2 is 0, an infinite loop is indicated, when M2 is not 0, the loop outputs M2 times, and then the data of the next address is read; if Ci is a jump instruction, reading data1 data (jump type) and data2 (jump address A2), jumping to address A2 when a jump condition is met, and then reading data in address A2; if Ci is a detail instruction, reading data2 data (waveform state), outputting a corresponding waveform transition state according to the value of time Ti, and reading data of a next address; if Ci is an end instruction, the program stops after outputting the current waveform.
In this embodiment, the apparatus for compiling high voltage pulse parameters comprises a data receiving module, a waveform compiling module and a control timing generating module. In the first stage, the data receiving module firstly identifies identifiers according to a communication protocol specified by the host computer, then identifies specific data after different identifiers, and finally stores all waveform data in the RAM in the form of 'waveform Wi + time Ti + instruction Ci + instruction data Di'.
And in the second stage, the waveform compiling module reads waveform data in an address i from the RAM in sequence during waveform compiling, outputs the waveform of the Wi for Ti time at first, and then reads the next group of waveform data according to the instruction in the Ci and the instruction data in the Di to the corresponding address until meeting an ending instruction, so that the waveform voltage amplitude and the pulse width are compiled.
In the third stage, because the empirical formulas of each high-voltage pulse power supply are different, 10% of experimental data needs to be measured to fit the empirical formulas, namely the optimal solutions of p 1-p 11 are obtained, then the values of a, b and c are obtained through the number of switches and parameters such as voltage amplitude, rising and falling time, overshoot and load, and the like, and the control time sequence of each switch is calculated by using the empirical formulas, so that the compiling of the time sequences of each switch is realized.
And in the fourth stage, the high-voltage pulse generating circuit is controlled to generate the required high-voltage pulse waveform by combining the compiling of the waveform voltage amplitude and the pulse width by the waveform compiling module and the compiling of the time sequence of each switch by the control time sequence generating module.
Claims (6)
1. An apparatus for high voltage pulse parameter compilation, comprising:
a data receiving module: the data processing device is used for identifying data transmitted by the upper computer according to a communication protocol customized by the upper computer; the data receiving module identifies the number of switches, n waveform parameters and m functional instructions, wherein n is more than or equal to 100 and more than or equal to 1, and m is more than or equal to 100 and more than or equal to 1, wherein the waveform parameters comprise voltage amplitude, pulse width, rising and falling time of a waveform, overshoot and load; functional instructions include repetitions, loops, and jumps of waveforms; the number of switches, each waveform parameter and each function command are respectively attached with a preset identifier, and if 1+ n + m is equal to k, the number of the identifiers is 201, k is more than or equal to 3, namely k different identifiers exist;
a waveform compiling module: compiling the data received by the data receiving module to obtain the voltage amplitude, the rising and falling time, the overshoot and the load parameters of the high-voltage pulse waveform, and simultaneously realizing the repetition, circulation and jump of the high-voltage pulse waveform; waveform data received from an upper computer in the waveform compiling module is stored in an RAM in the form of waveform Wi + time Ti + instruction Ci + instruction data Di, wherein i is more than or equal to 0, and Wi, Ti, Ci and Di represent the waveform data stored in an address i; the waveform Wi is the number of closed switch channels of the high-voltage pulse power supply, and the voltage amplitude of the waveform is controlled by the number of closed switch channels; time Ti is the output time of waveform Wi; the instruction Ci is a functional instruction of waveform repetition, circulation and jump; the instruction data Di is an accompanying parameter of the storage instruction Ci;
a control timing generation module: calculating and distributing control time sequences of all switches according to the number of switches of the high-voltage pulse power supply and voltage amplitude, rising and falling time, overshoot and load parameters of a high-voltage pulse waveform, and outputting a control signal required by a high-voltage pulse generating circuit to enable the high-voltage pulse generating circuit to generate the required high-voltage pulse waveform;
the control time sequence generation module evenly distributes the voltage amplitude of the high-voltage pulse to each switch channel to control the rising edge and the falling edge of the output waveform, and the time sequence of each switch channel comprises the opening time and the closing time of the switch channel;
the opening time and the closing time of the switch channel are given by empirical formulas obtained by fitting experimental data, the opening time and the closing time of one switch channel are respectively determined by two empirical formulas, and the empirical formula models are t ═ p1+ p2 a + p 3b + p4 c + p5 a2+p6·b2+p7·c2+ p8 a · b + p9 · a · c + p10 · b · c + p11 · a · b · c, but the values at the opening times and the closing times p1 to p11 are different, the values p1 to p11 are found by fitting known data, and 10-7≤p1、p2、…、p11≤107Where a is the voltage amplitude, b is the load impedance value, and c is the up/down edge time.
2. The apparatus for high voltage pulse parameter compilation according to claim 1, wherein the size of the RAM in the waveform compilation module is xy bits, where x represents the size of the memory occupied by each group of waveform data, Wi, Ti, Ci, and Di are x1, x2, x3, and x4, and x is x1+ x2+ x3+ x 4; y represents the number of waveform data sets that can be stored.
3. The apparatus as claimed in claim 2, wherein the bit width occupied by the waveform Wi is x1, which is determined by the number of switching channels N1 of the high voltage pulse power supply, and 2x1N1, N1 is more than or equal to 500 and more than or equal to 1, and x1 is more than or equal to 9 and more than or equal to 1; the bit width occupied by time Ti is x2, determined by the number of output-sustaining clocks N2 of Wi, and 2x2Not less than N2, and 10000 not less than N2 not less than3, 14 is more than or equal to x2 is more than or equal to 2; the bit width occupied by instruction Ci is x3, determined by the number of functional instructions N3, and 2x3More than or equal to N3, more than or equal to 100, more than or equal to N3, more than or equal to 0, and more than or equal to 7, more than or equal to x3, more than or equal to 0; the bit width occupied by the instruction Data Di is x4 and comprises Data1 and Data2, Data1 is used for storing the subtypes or labels of the instructions, the number range of the subtypes or labels of the instructions is 0-100, the occupation width range is 0-7 bits, Data2 is used for storing the cycle number and jump address Data of the instructions, the cycle number range is 0-1000000, the occupation width range is 0-20 bits, namely 27 is not less than x4 and not less than 0.
4. A method for high voltage pulse parameter coding, which uses the apparatus for high voltage pulse parameter coding of claim 1, comprising the following steps:
the method comprises the following steps: the data receiving module firstly identifies identifiers according to a communication protocol specified by an upper computer, then identifies specific data after different identifiers, and finally stores each waveform data in a RAM in a form of waveform Wi + time Ti + instruction Ci + instruction data Di;
step two: the waveform compiling module is used for compiling the waveform voltage amplitude and the pulse width by reading waveform data in the RAM;
step three: the control time sequence generation module is used for compiling the time sequences of the switches through the number of the switches, the voltage amplitude, the rising time, the falling time, the overshoot and the load;
step four: and the high-voltage pulse generating circuit is controlled to generate the required high-voltage pulse waveform by combining the compiling of the waveform voltage amplitude and the pulse width by the waveform compiling module and the compiling of the time sequence of each switch by the control time sequence generating module.
5. The method for high voltage pulse parameter compilation according to claim 4, wherein the second step is specifically as follows: when the waveform is compiled, the waveform data in the address i is sequentially read from the RAM, the Wi waveform is output for the time Ti, and then the waveform data of the next group is read according to the instruction in the Ci and the instruction data in the Di to the corresponding address.
6. The method for high voltage pulse parameter compilation according to claim 4, wherein the third step is specifically: the control time sequence generation module evenly distributes the voltage amplitude of the high-voltage pulse to each switch channel to control the rising edge and the falling edge of the output waveform, the time sequence of each switch channel comprises the opening time and the closing time of the switch channel, and empirical formula models of the opening time and the closing time of the switch channels are p1+ p2 a + p 3b + p4 c + p5 a2+p6·b2+p7·c2+ p8 a · b + p9 · a · c + p10 · b · c + p11 · a · b · c, but the values at the opening times and the closing times p1 to p11 are different, the values p1 to p11 are found by fitting known data, and 10-7≤p1、p2、…、p11≤107Wherein a is the voltage amplitude, b is the load impedance value, and c is the up/down edge time;
the empirical formulas of each high-voltage pulse power supply are different, firstly 10% of experimental data is measured and fitted with the empirical formulas to obtain the optimal solution of p 1-p 11, then the values of a, b and c are brought in the compilation of the control time sequence, and the control time sequence of each switch is calculated by using the empirical formulas.
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| CN107402596B (en) * | 2017-08-08 | 2020-03-24 | 电子科技大学 | Arbitrary waveform generator based on instruction framework |
| CN107565933B (en) * | 2017-08-30 | 2020-03-17 | 西安交通大学 | High-voltage pulse power supply parameterization device and method |
| CN108599742A (en) * | 2018-04-11 | 2018-09-28 | 西安交通大学 | A kind of the negative high voltage Pulased power supply unit and parametrization adjusting method of Parameter adjustable |
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