阅读说明：本技术 干扰多脉冲发生方法 (Interference multi-pulse generation method ) 是由 贾利东 陈思远 侍亚军 张忠平 杨铭 黄学军 于 2020-02-25 设计创作，主要内容包括：本发明公开一种干扰多脉冲发生方法,其第一电容、第二电容之间设置有第一电子开关,所述第二电容与波形发生主回路之间设置有串联连接的第二电子开关和电感,一用于给第一电容充电的第一高压电源与第一电容并联；所述第一电子开关由第一控制时序控制其通断,所述第二电子开关由第二控制时序控制其通断；第一电子开关断开、第二电子开关导通,当前第一电容电量无变化,第二电容给波形发生主回路放电,产生第一个后续脉冲波形；第一电子开关导通、第二电子开关断开。本发明实现了符合标准要求等幅值脉冲的更多后续波数目的输出,降低了体积,也方便安装固定出。(The invention discloses an interference multi-pulse generation method, wherein a first electronic switch is arranged between a first capacitor and a second capacitor, a second electronic switch and an inductor which are connected in series are arranged between the second capacitor and a waveform generation main loop, and a first high-voltage power supply for charging the first capacitor is connected with the first capacitor in parallel; the first electronic switch is controlled to be switched on and off by a first control time sequence, and the second electronic switch is controlled to be switched on and off by a second control time sequence; the first electronic switch is switched off, the second electronic switch is switched on, the current electric quantity of the first capacitor is unchanged, and the second capacitor discharges the main circuit of the waveform generation to generate a first subsequent pulse waveform; the first electronic switch is turned on, and the second electronic switch is turned off. The invention realizes the output of more subsequent wave numbers of the equal-amplitude pulse meeting the standard requirement, reduces the volume and is convenient to install and fix.)

1. A method of interference multi-pulse generation, comprising: the device comprises a first capacitor (1), a second capacitor (2) and a waveform generation main loop (3) which are sequentially connected in parallel, wherein a first electronic switch (4) is arranged between the first capacitor (1) and the second capacitor (2), a second electronic switch (5) and an inductor (6) which are connected in series are arranged between the second capacitor (2) and the waveform generation main loop (3), and a first high-voltage power supply (7) for charging the first capacitor (1) is connected with the first capacitor (1) in parallel;

the first electronic switch (4) is controlled to be switched on and off by a first control time sequence, the second electronic switch (5) is controlled to be switched on and off by a second control time sequence, and the time required for the first capacitor (1) to charge the second capacitor (2) to reach a steady state is steady-state time T₀；

The control method of the generator comprises the following steps:

the method comprises the steps that firstly, the first electronic switch (4) is disconnected, the second electronic switch (5) is disconnected, and the first high-voltage power supply (7) charges the first capacitor (1) to reach the voltage of U_{1 C1}And the sum electric quantity is Q_1C1；

Step two, the first electronic switch (4) is switched on, the second electronic switch (5) is switched off, and the first capacitor (1) supplies the second capacitor (2) with the T-shaped current₁The time charging makes the voltage of the second capacitor (2) be U_{1 C2}，T₁Does not exceed T₀The time of (d);

step three, the first electronic switch (4) is switched off, the second electronic switch (5) is switched on, the electric quantity of the first capacitor (1) is unchanged, and the second capacitor (2) discharges the waveform generation main loop to generate a first subsequent pulse waveform;

fourthly, the first electronic switch (4) is switched on, the second electronic switch (5) is switched off, and the first capacitor (1) supplies the second capacitor (2) with the T-shaped current₂The time charging makes the voltage of the second capacitor (2) be U_{2 C2}，T₂Time of greater than T₁Not exceeding T₀The time of (d);

step five, the first electronic switch (4) is switched off, the second electronic switch (5) is switched on, the electric quantity of the first capacitor (1) is unchanged, and the second capacitor (2) discharges the waveform generation main loop to generate a second subsequent pulse waveform;

repeating the fourth step and the fifth step in sequence for N times, and repeating the step for the Nth timeFourthly, the first electronic switch (4) is switched on, the second electronic switch (5) is switched off, and the first capacitor (1) supplies the second capacitor (2) with the T-shaped current_nThe time charging makes the voltage of the second capacitor (2) be U_{2 Cn}，T_nTime of greater than T_n-1Not exceeding T₀The time of (d);

when the Nth step five is repeated, the electric quantity of the first capacitor (1) is not changed, the second capacitor (2) discharges the waveform generation main loop, and the Nth subsequent pulse waveform is generated.

2. Method of interference multi-pulse generation according to claim 1, characterized in that: the number of times of repeating the step four and the step five is not less than 10 times.

3. Method of interference multi-pulse generation according to claim 1, characterized in that: the device also comprises a second high-voltage power supply (8) used for charging the second capacitor (2) in a first wave mode, and the second high-voltage power supply (8) is connected with the second capacitor (2) in parallel.

Technical Field

The invention relates to the technical field of electronic testing, in particular to an interference multi-pulse generation method.

Background

In the prior art, multi-pulse group output is realized by quickly charging a small loop capacitor through an energy storage capacitor with a large capacitance value, wherein the charging time is equal, and finally, the voltage of the energy storage capacitor is equal to the voltage of the loop capacitor.

Capacitance electric quantity formula Q = CU, total electric quantity Q at the beginning_init=C1*U_initThe first pulse U1= Q/(C1 + C2), the C1 storage capacitor with larger capacity value C2 is smaller than C1, U2= (Q-Q1)/(C1 + C2), the energy consumed by the first pulse Q1= C2 and U1 is smaller, the voltage drop of U2 is less, as shown in fig. 1, after the latter accumulated electric quantity is consumed by n pulses, the subsequent U2 is consumed_nThe voltage drops a lot and the situation occurs that the effective voltage required by the standard cannot be reached. In order to ensure that the voltage meets the standard effective error value when n pulses are output as far as possible, the capacitance value C1 of the energy storage capacitor is increased, and at the moment, Q is increased_initWill improve to guarantee that nth pulse voltage satisfies the standard, and purchase big energy storage capacitor cost can be very high simultaneously big capacitance value's electric capacity volume also is very big, and the fixed requirement of installation also improves, and the voltage of pulse crowd still can see to reduce gradually along with the number increase simultaneously.

Disclosure of Invention

The invention aims to provide an interference multi-pulse generating method which avoids the defect that the voltage of a pulse group is gradually reduced along with the increase of the number of pulses of the subsequent waveform voltage, adopts the capacitance value of a small capacitor, realizes the output of more subsequent wave numbers of pulses with equal amplitude meeting the standard requirement, reduces the volume, and is convenient to install and fix.

In order to achieve the purpose, the invention adopts the technical scheme that: an interference multi-pulse generation method comprises a first capacitor, a second capacitor and a waveform generation main loop which are sequentially arranged in parallel, wherein a first electronic switch is arranged between the first capacitor and the second capacitor, a second electronic switch and an inductor which are connected in series are arranged between the second capacitor and the waveform generation main loop, and a first high-voltage power supply used for charging the first capacitor is connected with the first capacitor in parallel;

the first electronic switch is controlled by a first control time sequence to be switched on and switched off, the second electronic switch is controlled by a second control time sequence to be switched on and switched off, and the time required for the first capacitor to charge the second capacitor to reach a steady state is a steady state time T₀；

The method comprises the following steps:

step one, the first electronic switch is switched off, the second electronic switch is switched off, and the first high-voltage power supply charges the first capacitor to reach the voltage of U_{1 C1}And the sum electric quantity is Q_1C1；

Step two, the first electronic switch is switched on, the second electronic switch is switched off, and the first capacitor supplies the second capacitor with the electric energy through T₁Charging time to make the voltage of the second capacitor be U_{1 C2}，T₁Does not exceed T₀The time of (d);

step three, the first electronic switch is switched off, the second electronic switch is switched on, the current electric quantity of the first capacitor is unchanged, and the second capacitor discharges the main circuit of the waveform generation to generate a first subsequent pulse waveform;

the fourth step is that the first electronic switch is switched on and the second electronic switch is switched off, and the first capacitor supplies the second capacitor with the electric energy through T₂Charging time to make the voltage of the second capacitor be U_{2 C2}，T₂Time of greater than T₁Not exceeding T₀The time of (d);

step five, the first electronic switch is switched off, the second electronic switch is switched on, the current electric quantity of the first capacitor is unchanged, and the second capacitor discharges the main circuit of the waveform generation to generate a second subsequent pulse waveform;

the fourth step and the fifth step are sequentially repeated for N times, when the Nth step is repeated for the fourth step, the first electronic switch is switched on, the second electronic switch is switched off, and the first capacitor supplies the second capacitor with the electric energy through T_nCharging time to make the voltage of the second capacitor be U_{2 Cn}，T_nTime of greater than T_n-1Not exceeding T₀The time of (d);

when the Nth step five is repeated, the current electric quantity of the first capacitor is unchanged, the second capacitor discharges the waveform generation main loop, and the Nth subsequent pulse waveform is generated.

The further improved scheme in the technical scheme is as follows:

1. in the scheme, the number of times of repeating the step four and the step five is not less than 10.

2. In the above scheme, the power supply further comprises a second high-voltage power supply for performing head-wave charging on a second capacitor, and the second high-voltage power supply is connected in parallel with the second capacitor.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

the interference multi-pulse generation method avoids the defect that the voltage of a pulse group is gradually reduced along with the increase of the number of pulses of the subsequent waveform voltage, adopts the capacitance value of a small capacitor, realizes the output of more subsequent wave numbers of pulses with equal amplitude meeting the standard requirement, reduces the volume, and is convenient to install and fix; also, it further has T_nTime relative last time T_n-1Slightly increased but not exceeding T_n-1The time of the pulse waveform is beneficial to further improving the amplitude of the subsequent pulse waveform maintenance and further improving the precision of the subsequent pulse.

Drawings

FIG. 1 is a waveform diagram generated by a prior art generator;

FIG. 2 is a schematic diagram of the structural principle of the generator of the present invention;

fig. 3 is a waveform diagram generated by the interference multi-pulse generation method of the present invention.

In the above drawings: 1. a first capacitor; 2. a second capacitor; 3. a waveform generation main loop; 4. a first electronic switch; 5. a second electronic switch; 6. an inductance; 7. a first high voltage power supply; 8. a second high voltage power supply.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.