CN111294021B - Airplane airborne fast pulse group test generator - Google Patents
Airplane airborne fast pulse group test generator Download PDFInfo
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- CN111294021B CN111294021B CN202010115089.1A CN202010115089A CN111294021B CN 111294021 B CN111294021 B CN 111294021B CN 202010115089 A CN202010115089 A CN 202010115089A CN 111294021 B CN111294021 B CN 111294021B
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/64—Generators producing trains of pulses, i.e. finite sequences of pulses
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/01—Details
- H03K3/017—Adjustment of width or dutycycle of pulses
Abstract
The invention discloses a flyThe airborne fast pulse group test generator comprises a first capacitor, a second capacitor and a waveform generation main loop which are sequentially connected in parallel, wherein the on-off of a first electronic switch is controlled by a first control time sequence, the on-off of a second electronic switch is controlled by a second control time sequence, and the time required by the first capacitor to charge the second capacitor to reach a steady state is the steady state time T 0 (ii) a The first electronic switch is turned on, the second electronic switch is turned off, and the first capacitor supplies the second capacitor with the electric energy through T 1 Charging time to make the voltage of the second capacitor be U 1 C2 ，T 1 Time of less than T 0 The time of (d); when the first electronic switch is switched off and the second electronic switch is switched on, the electric quantity of the current first capacitor is unchanged, and the second capacitor discharges the waveform generation main loop to generate a first subsequent pulse waveform. The aircraft-mounted fast pulse group test generator avoids the defect that the voltage of the 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, and realizes the output of more subsequent wave numbers of pulses with equal amplitude meeting the standard requirement.
Description
Technical Field
The invention relates to the technical field of electronic testing, in particular to an airborne fast pulse group testing generator of an airplane.
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 init The first pulse U1= Q/(C1 + C2), C1 energy storage capacitorC2 with a larger capacitance value is smaller than C1, U2= (Q-Q1)/(C1 + C2), the energy consumed by the first pulse Q1= C2 = (Q-Q1)/(C1 + C2) is smaller, the voltage drop of U2 is less, as shown in fig. 1, after the next accumulated electric quantity is consumed by n pulses, the subsequent U is less n The 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 much as possible, the capacitance value C1 of the energy storage capacitor is increased, and at the moment, Q is increased init Will 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 aircraft-mounted fast pulse group test generator which avoids the defect that the voltage of a pulse group is gradually reduced along with the increase of the number of pulses, and realizes the output of more subsequent wave numbers of pulses with equal amplitude meeting the standard requirements by adopting the capacitance value of a smaller capacitor.
In order to achieve the purpose, the invention adopts the technical scheme that: an aircraft-mounted fast pulse group test generator comprises a first capacitor, a second capacitor and a waveform generation main loop which are sequentially connected 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 T 0 ；
The control method of the generator 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 capacitorThe electricity reaches a voltage of U 1 C1 And the quantity of electricity 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 T 1 Charging time to make the voltage of the second capacitor be U 1 C2 ，T 1 Does not exceed T 0 The 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;
fourthly, 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 2 Charging for a time to make the voltage of the second capacitor U 2 C2 ，T 2 Does not exceed T 0 The 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 n Charging time to make the voltage of the second capacitor be U 2 Cn ，T n Does not exceed T 0 The 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 12.
2. In the above scheme, the device further comprises a second high-voltage power supply for performing first-wave charging on the second capacitor, and the second high-voltage power supply is connected with the second capacitor in parallel.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the invention relates to an aircraft-mounted fast pulse group test generator which avoids the defect that the voltage of a pulse group is gradually reduced along with the increase of the number of pulses, and adopts the capacitance value and T of a smaller capacitor n Does not exceed T 0 The time of the method 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.
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 airborne fast burst test generator of the present invention.
In the drawings above: 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 simplification of description, but do not indicate or imply that the device or element 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 "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; 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 aircraft-mounted fast pulse group test generator 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 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 T 0 ；
The control method of the generator 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 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 electric energy through T 1 The time charging makes the voltage of the second capacitor 2 be U 1 C2 ，T 1 Is less than T 0 The time of (d);
step three, the first electronic switch 4 is switched off, the second electronic switch 5 is switched on, the current 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;
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 T 2 Charging for a time such that the voltage of the second capacitor 2 is U 2 C2 ，T 2 Is less than T 0 The 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;
in turn, the components are arranged in sequenceRepeating the fourth step and the fifth step for N times, wherein 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 T n The time charging makes the voltage of the second capacitor 2 be U 2 Cn ，T n Time of less than T 0 The 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 12 times.
The high-voltage power supply further comprises a second high-voltage power supply 8 for charging the second capacitor 2 by first wave, and the second high-voltage power supply 8 is connected with the second capacitor 2 in parallel.
Example 2: an aircraft-mounted fast pulse group test generator 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 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 steady-state time T 0 ；
The control method of the generator 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 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 electric energy through T 1 Charging for a time such that the voltage of the second capacitor 2 is U 1 C2 ，T 1 Time of less than T 0 The time of (d);
step three, the first electronic switch 4 is switched off, the second electronic switch 5 is switched on, the current 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;
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 T 2 The time charging makes the voltage of the second capacitor 2 be U 2 C2 ，T 2 Time of less than T 0 The 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 T n The time charging makes the voltage of the second capacitor 2 be U 2 Cn ，T n Time of less than T 0 The 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 is a waveform generation switch, the time sequences of a first electronic switch and a second electronic switch are staggered, the influence of a first capacitor C1 on the waveform is prevented, the conducting time of the first electronic switch determines the charging voltage of a second capacitor C2, and the conducting time of the first electronic switch 1 is smaller than the time required by the charging to reach the steady state and is the steady state time T 0 The voltage of the second capacitor C2 is smaller than the voltage of the first capacitor C1 when the first electronic switch 1 is turned off, so that the electric quantity of the first capacitor C1 is uniformly distributed to subsequent waves, and the problem of subsequent voltage drop is solved.
When the aircraft airborne fast pulse group test generator is adopted, the defect that the voltage of a pulse group is gradually reduced along with the increase of the number of pulses of the voltage of a subsequent waveform is overcome, and the capacitance value and T of a small capacitor are adopted n Does not exceed T 0 When (2)In addition, the output of more subsequent wave numbers of the equal-amplitude pulse meeting the standard requirements is realized, the volume is reduced, and the installation and fixation are convenient.
The above embodiments are only for illustrating the technical idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the protection scope of the present invention by this means. 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. An aircraft-mounted fast pulse group test generator is characterized in that: 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 T 0 ；
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 current 1 The time charging makes the voltage of the second capacitor (2) be U 1 C2 ，T 1 Does not exceed T 0 The 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 2 The time charging makes the voltage of the second capacitor (2) be U 2 C2 ，T 2 Does not exceed T 0 The 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 not changed, 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 T-shaped current n The time charging makes the voltage of the second capacitor (2) be U 2 Cn ，T n Does not exceed T 0 The time of (d);
and when the Nth step five is repeated, the current electric quantity of the first capacitor (1) is not changed, and the second capacitor (2) discharges the waveform generation main loop to generate the Nth subsequent pulse waveform.
2. The aircraft-onboard fast burst test generator of claim 1, wherein: the number of times of repeating the step four and the step five is not less than 12.
3. The aircraft-onboard fast pulse burst test generator of claim 1, wherein: 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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010115089.1A CN111294021B (en) | 2020-02-25 | 2020-02-25 | Airplane airborne fast pulse group test generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010115089.1A CN111294021B (en) | 2020-02-25 | 2020-02-25 | Airplane airborne fast pulse group test generator |
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| CN111294021A CN111294021A (en) | 2020-06-16 |
| CN111294021B true CN111294021B (en) | 2023-04-07 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101540513A (en) * | 2008-03-19 | 2009-09-23 | 株式会社三社电机制作所 | Power supply device for charge/discharge device, and charge/discharge device |
| CN101854159A (en) * | 2009-04-01 | 2010-10-06 | 上海凌世电子有限公司 | Electrical fast transient burst generator |
| CN102468828A (en) * | 2010-11-03 | 2012-05-23 | 北京普源精电科技有限公司 | Pulse edge control device for waveform generator |
| CN103618472A (en) * | 2013-09-12 | 2014-03-05 | 复旦大学 | Full-solid-state high-voltage pulse current source with unipolar pulse output |
| JP2018074622A (en) * | 2016-10-24 | 2018-05-10 | ニチコン株式会社 | Pulse power supply device and pulse-generation method |
-
2020
- 2020-02-25 CN CN202010115089.1A patent/CN111294021B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101540513A (en) * | 2008-03-19 | 2009-09-23 | 株式会社三社电机制作所 | Power supply device for charge/discharge device, and charge/discharge device |
| CN101854159A (en) * | 2009-04-01 | 2010-10-06 | 上海凌世电子有限公司 | Electrical fast transient burst generator |
| CN102468828A (en) * | 2010-11-03 | 2012-05-23 | 北京普源精电科技有限公司 | Pulse edge control device for waveform generator |
| CN103618472A (en) * | 2013-09-12 | 2014-03-05 | 复旦大学 | Full-solid-state high-voltage pulse current source with unipolar pulse output |
| JP2018074622A (en) * | 2016-10-24 | 2018-05-10 | ニチコン株式会社 | Pulse power supply device and pulse-generation method |
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| CN111294021A (en) | 2020-06-16 |
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