CN111510013A - Interference multi-pulse generation method - Google Patents

Interference multi-pulse generation method Download PDF

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Publication number
CN111510013A
CN111510013A CN202010115145.1A CN202010115145A CN111510013A CN 111510013 A CN111510013 A CN 111510013A CN 202010115145 A CN202010115145 A CN 202010115145A CN 111510013 A CN111510013 A CN 111510013A
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capacitor
electronic switch
switched
time
voltage
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CN111510013B (en
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贾利东
陈思远
侍亚军
张忠平
杨铭
黄学军
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Suzhou 3ctest Electronic Technology Co ltd
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Suzhou 3ctest Electronic Technology Co ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M11/00—Power conversion systems not covered by the preceding groups
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
    • H03K3/57—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback the switching device being a semiconductor device

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Generation Of Surge Voltage And Current (AREA)

Abstract

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.

Description

Interference multi-pulse generation method
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 beginninginit=C1*UinitThe 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 consumednThe 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 increasedinitWill 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 U1 C1And the sum electric quantity is Q1C1；
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 U1 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 U2 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 TnCharging time to make the voltage of the second capacitor be U2 Cn，TnTime of greater than Tn-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 TnTime relative last time Tn-1Slightly increased but not exceeding Tn-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.
Example 1: an interference multi-pulse generation method comprises a first capacitor 1, a second capacitor 2 and a waveform generation main loop 3 which are sequentially arranged 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 used for charging the first capacitor 1 is connected with the first capacitor 1 in parallel;
the first electronic switch 4 is controlled by a first control time sequence to be switched on and switched off, the second electronic switch 5 is controlled by a second control time sequence to be switched on and switched off, and the time required for the first capacitor 1 to charge the second capacitor 2 to reach a steady state is the steady state time T0；
The method comprises the following steps:
step one, the first electronic switch 4 is switched off, the second electronic switch 5 is switched off, and the first high-voltage power supply 7 charges the first capacitor 1 to reach the voltage U1 C1And the sum electric quantity is Q1C1；
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 electric energy through T1Time chargerElectrically making the voltage of the second capacitor 2U1 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 current first capacitor 1 is unchanged, and the second capacitor 2 discharges the waveform generation main loop to generate a first subsequent pulse waveform;
step four, 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 electric energy through T2The time charging makes the voltage of the second capacitor 2 be U2 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 current first capacitor 1 is unchanged, and the second capacitor 2 discharges the waveform generation main loop 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 4 is switched on, the second electronic switch 5 is switched off, and the first capacitor 1 supplies the second capacitor 2 with the electric energy through TnThe time charging makes the voltage of the second capacitor 2 be U2 Cn，T12Time of greater than T11Not exceeding T0The time of (d);
when the nth step is repeated, the current electric quantity of the first capacitor 1 is unchanged, and the second capacitor 2 discharges the waveform generation main loop to generate an nth subsequent pulse waveform.
And repeating the fourth step and the fifth step for 10 times.
The device also comprises a second high-voltage power supply 8 used for carrying out head wave charging on the second capacitor 2, and the second high-voltage power supply 8 is connected with the second capacitor 2 in parallel.
Example 2: an interference multi-pulse generation method comprises a first capacitor 1, a second capacitor 2 and a waveform generation main loop 3 which are sequentially arranged 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 used for charging the first capacitor 1 is connected with the first capacitor 1 in parallel;
the first electronic switch 4 is controlled by a first control time sequence to be switched on and switched off, the second electronic switch 5 is controlled by a second control time sequence to be switched on and switched off, and the time required for the first capacitor 1 to charge the second capacitor 2 to reach a steady state is the steady state time T0；
The method comprises the following steps:
step one, the first electronic switch 4 is switched off, the second electronic switch 5 is switched off, and the first high-voltage power supply 7 charges the first capacitor 1 to reach the voltage U1 C1And the sum electric quantity is Q1C1；
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 electric energy through T1The time charging makes the voltage of the second capacitor 2 be U1 C2，T1Time of less than 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 current first capacitor 1 is unchanged, and the second capacitor 2 discharges the waveform generation main loop to generate a first subsequent pulse waveform;
step four, 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 electric energy through T2The time charging makes the voltage of the second capacitor 2 be U2 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 current first capacitor 1 is unchanged, and the second capacitor 2 discharges the waveform generation main loop to generate a second subsequent pulse waveform;
the fourth step and the fifth step are sequentially repeated for 14 times, when the Nth step is repeated for the fourth step, 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 electric energy through TnThe time charging makes the voltage of the second capacitor 2 be U2 Cn，T16Time of greater than T15Not exceeding T0The time of (d);
when the nth step is repeated, the current electric quantity of the first capacitor 1 is unchanged, and the second capacitor 2 discharges the waveform generation main loop to generate an nth subsequent pulse waveform.
And repeating the fourth step and the fifth step 16 times.
The electronic switch of the invention is a waveform generating switch, the time sequences of the first electronic switch and the second electronic switch are staggered, the influence of the first capacitor C1 on the waveform is prevented, the conducting time of the first electronic switch determines the charging voltage of the second capacitor C2, the conducting time of the first electronic switch 1 is less than the time required by the charging to reach the steady state, and the time is the steady state time T0In addition, the conducting time of the first electronic switch 1 is prolonged along with the increase of the number of pulses, the starting conducting time is shorter, and the voltage of the second capacitor C2 is smaller than the voltage of the first capacitor C1 when the first electronic switch 1 is closed, so that the electric quantity of the first capacitor C1 is uniformly distributed to subsequent waves, and the problem of subsequent voltage degradation is solved.
When the interference multi-pulse generation method is adopted, the defect that the voltage of a pulse group is gradually reduced along with the increase of the number of pulses of subsequent waveform voltages is overcome, the output of more subsequent wave numbers of pulses with equal amplitude meeting the standard requirements is realized by adopting the capacitance value of a smaller capacitor, the volume is also reduced, and the installation and fixation are convenient; also, it further has TnTime relative last time Tn-1Slightly increased but not exceeding Tn-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.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (3)

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 U1 C1And the sum electric quantity is Q1C1；
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 U1 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 U2 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 currentnThe time charging makes the voltage of the second capacitor (2) be U2 Cn，TnTime of greater than Tn-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.
CN202010115145.1A 2020-02-25 2020-02-25 Interference multi-pulse generation method Active CN111510013B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001320886A (en) * 2000-05-09 2001-11-16 Sumitomo Heavy Ind Ltd Pulse discharge circuit
CN102315841A (en) * 2011-09-01 2012-01-11 上海电力学院 Electrical fast transient burst discharge switch driver circuit
CN102480100A (en) * 2010-11-29 2012-05-30 中国科学院大连化学物理研究所 Laser discharge device for pulse oxygen-iodine chemical laser device
JP2016100680A (en) * 2014-11-19 2016-05-30 ニチコン株式会社 Pulse power supply device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001320886A (en) * 2000-05-09 2001-11-16 Sumitomo Heavy Ind Ltd Pulse discharge circuit
CN102480100A (en) * 2010-11-29 2012-05-30 中国科学院大连化学物理研究所 Laser discharge device for pulse oxygen-iodine chemical laser device
CN102315841A (en) * 2011-09-01 2012-01-11 上海电力学院 Electrical fast transient burst discharge switch driver circuit
JP2016100680A (en) * 2014-11-19 2016-05-30 ニチコン株式会社 Pulse power supply device

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