Mechanical actuation trigger type pulse driving source device

By introducing a mechanical actuation trigger design into the PFN-Marx pulse drive source, rectifier filtering, voltage double rectifier and pulse modulation modules are adopted, combined with mechanical actuation solenoid valve triggering, the large number of switches, complex spurious parameters and weight are solved. The big problem is to achieve compact and efficient high-power microwave source driving.

CN119134956AInactive Publication Date: 2024-12-13NAVAL UNIV OF ENG PLA

Patent Information

Application Number
CN202411607159.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2024-12-13
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing PFN-Marx pulse driving source devices have problems such as large number of switches, complex spurious parameters, limited trigger dynamic range and large weight, making it difficult to achieve small-scale compactness and stable driving of high-power microwave sources.

Method used

A mechanical actuation trigger type pulse driving source device is designed, using rectification filter module, high-frequency boost module, voltage double rectifier module, pulse modulation module and trigger module, combined with the control circuit, trigger switch conduction through a mechanical actuation solenoid valve. , realizes bipolar charging and compact structure, reduces the number of switches, reduces stray parameters and weight.

Benefits of technology

It achieves a small number of switch stages, small spurious parameters, wide trigger dynamic range, and compact and lightweight device, suitable for the driving needs of high-power microwave sources, improving stability and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a mechanical actuation trigger type pulse driving source device. The mechanical actuation trigger type pulse driving source device comprises a rectifying and filtering module, a high-frequency boosting module, a voltage doubling rectifying module, a pulse modulation module, a trigger module and a control loop electrically connected with the high-frequency boosting module, the voltage doubling rectifying module and the trigger module. The rectifying and filtering module is used for performing alternating current-direct current conversion; the high-frequency boosting module is used for receiving the direct-current signal, performing inversion boosting and then outputting a high-voltage alternating-current signal; the voltage-multiplying rectification module is used for receiving the high-voltage alternating current signal and outputting a high-voltage direct current signal through voltage-multiplying rectification; the pulse modulation module is used for charging and energy storage; the trigger module is used for enabling the pulse modulation module to establish a discharge loop to discharge a load when the high-voltage direct-current signal reaches a preset value; and the control loop is used for controlling the high-frequency boosting module and the triggering module and monitoring the output of the voltage doubling rectifying module. The pulse driving source device has the advantages of few switch stages, small stray parameters, wide trigger dynamic range and light weight.
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Description

Technical Field

[0001] The present invention relates to the field of high-power microwave and pulse technology, and in particular to a mechanically actuated trigger type pulse drive source device. Background Art

[0002] The pulse drive source is one of the key components of the high-power microwave system. Functionally, the pulse drive source usually needs to output a square wave voltage with a certain flat top to drive the high-power microwave device to produce a stable electron beam. At this time, the beam-wave conversion efficiency is relatively high. The electron beam converts kinetic energy into electromagnetic field energy under the action of the beam wave, and can output high-power microwaves with a power of up to gigawatts. The working principle of the pulse drive source is: low-voltage DC / AC power can be converted into high-voltage DC power through a series of methods to charge the modulator. When the modulator is charged to a certain voltage, it is turned on and can output a square wave voltage with a certain flat top.

[0003] Common pulse drive source technologies can be divided into two categories, one is the pulse forming line (PFL) solution based on distributed parameters, and the other is the pulse forming network (PFN) solution based on concentrated parameters. PFL mainly uses transformer oil, deionized water, etc. as energy storage media, and the pulse width formed by the unit length of PFL is relatively small. When the pulse drive source is required to generate a long pulse, the length of the PFL will become longer, making it difficult to achieve miniaturization. The PFN-Marx combines the pulse modulation and Marx boost functions of the PFN, uses concentrated capacitors and distributed inductors, and realizes the modulation of square wave pulses through a special topological structure. It has a compact structure and can be miniaturized.

[0004] For the unipolar charging method, the number of switches required by PFN-Marx is the same as the number of stages. If the number of stages of the generator is too much, the number of switches required will also increase accordingly. The increase in switches will cause the complexity of the generator, and the switch performance will have a great impact on the output waveform. At the same time, due to the compact structure of PFN-Marx, it will inevitably lead to a more complex distribution of the system's stray parameters and parasitic parameters, resulting in a decrease in the quality of the generator's output waveform. For existing PFN-Marx generators, insulating materials such as plexiglass, nylon and other materials are often required between layers for auxiliary support, resulting in a heavier generator weight. In addition, the traditional PFN-Marx uses an electrical trigger method to control the conduction of the switch. The trigger function can only be realized when the PFN-Marx is charged to a predetermined voltage. The trigger dynamic range is limited, and it is difficult to achieve a large range of trigger adjustment.

[0005] In view of this, it is necessary to design an improved pulse drive source device, which has the advantages of fewer switching stages, smaller stray parameters, wider trigger dynamic range and lighter weight, so as to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a mechanically actuated trigger type pulse drive source device.

[0007] To achieve the above-mentioned purpose, the present invention provides a mechanical actuation trigger type pulse drive source device, which includes: a rectifier filter module, a high-frequency boost module, a voltage doubler rectifier module, a pulse modulation module and a trigger module, and a control circuit respectively connected to the high-frequency boost module, the voltage doubler rectifier module and the trigger module; The input end of the rectifier and filter module is connected to the mains to perform AC-DC conversion, converting the AC signal into a DC signal to reduce the voltage fluctuation of the mains, and outputting the DC signal from the output end of the rectifier and filter module; The high-frequency boost module is used to receive the DC signal and perform inversion and boosting to output a high-voltage AC signal; The voltage doubler rectifier module includes a bipolar voltage doubler rectifier circuit and a high-voltage sampling circuit, which is used to receive the high-voltage AC signal, perform voltage doubler rectification, and output a positive and negative bipolar high-voltage DC signal; The pulse modulation module is used to receive the high voltage DC signal and perform charging and energy storage; The trigger module is used to trigger and turn on the pulse modulation module. When the pulse high-voltage DC signal reaches a set voltage value, the trigger module is activated to discharge the pulse modulation module.

[0008] As a further improvement of the present invention, the control loop is used to control the high-frequency boost module and the trigger module and monitor the output of the voltage doubler rectifier module, and has the functions of charging, discharging, circuit parameter setting and real-time voltage display.

[0009] As a further improvement of the present invention, the rectification and filtering module includes a full-bridge rectification circuit and an output voltage stabilization capacitor, and the full-bridge rectification circuit is connected to the mains.

[0010] As a further improvement of the present invention, the high-frequency boost module includes a full-bridge inverter, a resonance unit, and a high-frequency transformer which are electrically connected in sequence.

[0011] As a further improvement of the present invention, the voltage doubler rectifier module includes a positive polarity voltage doubler rectifier circuit, a negative polarity voltage doubler rectifier circuit and a high voltage sampling loop; the positive polarity voltage doubler rectifier circuit is used to output positive polarity DC high voltage, and the negative polarity voltage doubler rectifier circuit is used to output negative polarity DC high voltage.

[0012] As a further improvement of the present invention, the high-voltage sampling circuit is provided with a high-voltage arm and a low-voltage arm, which can divide the positive polarity DC high voltage and the negative polarity DC high voltage in a certain ratio, and output a voltage feedback signal to the control circuit at the low-voltage end.

[0013] As a further improvement of the present invention, the pulse modulation module includes a pressure vessel and a plurality of single-stage PFN networks.

[0014] As a further improvement of the present invention, the first-stage loops in the plurality of single-stage PFN networks are kept grounded, while the remaining loops of the other stages are all floating.

[0015] As a further improvement of the present invention, the pressure vessel is a cylindrical metal material and is filled with sulfur hexafluoride insulating gas at a certain pressure during normal operation to improve the insulation strength of the system. A power interface, an air filling port and an optical fiber outlet are left at the bottom of the pressure vessel.

[0016] As a further improvement of the present invention, the single-stage PFN network includes a pulse capacitor, a distributed inductor, an isolation inductor, and a switch.

[0017] As a further improvement of the present invention, the pulse capacitor may be a non-inductive ceramic high-voltage capacitor or a mica capacitor.

[0018] As a further improvement of the present invention, the distributed inductance material is made of metal such as copper strips or aluminum strips.

[0019] As a further improvement of the present invention, the isolation inductor can be manufactured by winding enameled wire on a polytetrafluoroethylene polymer rod.

[0020] As a further improvement of the present invention, the switch is a spark gap switch, which can be made of metal materials such as brass, tungsten-copper alloy, etc.

[0021] As a further improvement of the present invention, the single-stage PFN network is composed of 3 to 10 pulse capacitors connected in parallel, and the low-voltage end and the high-voltage end of the pulse capacitor are respectively fixed to the distributed inductor.

[0022] As a further improvement of the present invention, the switch is placed in the middle of the single-stage PFN network.

[0023] As a further improvement of the present invention, the control loop is based on a programmable logic controller, and establishes communication with a host computer through a communication module, and can be remotely controlled by the host computer.

[0024] As a further improvement of the present invention, the programmable logic controller is provided with a safety protection program to avoid abnormal operation of the equipment due to human error. When no grounding signal is detected, the equipment cannot be started. When the voltage feedback signal received from the output of the high-voltage sampling loop exceeds the set maximum value, the equipment will automatically stop and power off.

[0025] As a further improvement of the present invention, the trigger module adopts a mechanically actuated solenoid valve device, and the mechanically actuated solenoid valve device is controlled by the programmable logic controller; a trigger structure is installed at the mechanically actuated solenoid valve device, and when the mechanically actuated solenoid valve device is actuated, it can drive the trigger structure to enter the gap of the switch to trigger the switch to turn on.

[0026] In view of the hundreds of kilovolts of square wave voltage required to drive the microwave source of the load, the mechanically actuated trigger pulse driving source device of the present invention is designed with a two-stage boosting structure (front stage and rear stage). Among them, the front stage is a charging power supply, which is composed of a rectifier filter module, a high-frequency boost module, and a voltage doubling rectifier module; the rear stage is mainly composed of a pulse modulation module. After the tens of kilovolts of output voltage provided by the front stage charges the rear stage modulator module, the trigger module controls the conduction of the internal switch of the pulse modulation module to establish a discharge sequence, output hundreds of kilovolts of square wave voltage pulses, and achieve boost while modulating the output square wave pulses, meeting the requirements of driving the high-power microwave source of the load.

[0027] The beneficial effects of the present invention are: 1. The mechanically actuated trigger pulse drive source device provided by the present invention adopts a positive and negative bipolar charging method. The number of switches required is equal to half of the number of pulse modulation module levels, which can greatly reduce the number of switches and is beneficial to improving the operation stability of the generator.

[0028] 2. In the mechanically actuated trigger pulse drive source device provided by the present invention, the pulse modulation module body is designed for installation position according to a central symmetrical structure, which can ensure compactness while ensuring the uniformity of distribution parameters as much as possible, suppress the stray parameters of the device, and improve the output waveform quality.

[0029] 3. The mechanically actuated trigger pulse drive source device provided by the present invention adopts a mechanically actuated solenoid valve as a trigger device. By driving the trigger structure into the spark gap switch, the internal field distribution of the switch is distorted, so that the switch is turned on, which has the advantage of a large trigger dynamic range.

[0030] 4. The mechanically actuated trigger pulse drive source device provided by the present invention utilizes isolated inductors and distributed inductors as device supports, which can effectively reduce the weight of the entire device. That is, by reasonably designing and utilizing the existing isolated inductors and distributed inductors of the PFN-Marx generator as internal supports of the generator, the technical defect of using supporting auxiliary insulating materials in the prior art that causes the generator to be heavy can be eliminated, which can effectively reduce the weight of the entire generator, expand its application field, and enable it to have the potential to be used in scenarios with higher weight restrictions.

[0031] 5. The mechanically actuated trigger pulse drive source device provided by the present invention has a compact structure and is a fully solid-state solution. It adopts various anti-interference measures, optimizes the charging mode, and improves circuit parameters, so as to maintain a highly stable output state. It is easy to produce, assemble and transport, and can adapt to a variety of environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the composition of the mechanically actuated trigger type pulse drive source device provided by the present invention.

[0033] Figure 2 A schematic diagram of the circuit topology of a high-frequency boost module and a voltage-doubling rectifier module in a mechanically actuated triggered pulse drive source device provided by the present invention.

[0034] Figure 3 This is a schematic diagram of a pressure vessel in the mechanically actuated trigger-type pulse drive source device provided by the present invention.

[0035] Figure 4 A schematic diagram of the PFN network circuit topology in the mechanically actuated triggered pulse drive source device provided by the present invention.

[0036] Figure 5 This is a schematic diagram of the PFN network structure in the mechanically actuated triggered pulse drive source device provided by the present invention.

[0037] Figure 6 This is a schematic diagram of the control circuit composition in the mechanical actuation trigger type pulse drive source device provided by the present invention.

[0038] Figure 7 This is a schematic diagram of the structure of the trigger module in the mechanically actuated trigger type pulse drive source device provided by the present invention.

[0039] Figure 8 This is the measured output waveform of the mechanical actuation trigger type pulse drive source provided by the present invention.

[0040] Reference numerals 100, rectifier and filter module; 200, high frequency boost module; 300, voltage doubler rectifier module; 400, pulse modulation module; 500, trigger module; 600, control module; 201. full-bridge inverter; 202. resonant unit; 203. high-frequency transformer; 301. Positive polarity voltage doubler rectifier circuit; 302. Negative polarity voltage doubler rectifier circuit; 303. High voltage sampling circuit; 401, pressure vessel; 410, single-stage PFN network; 411. Pulse capacitor; 412. Distributed inductor; 413. Isolation inductor; 414. Switch; 501. Mechanically actuated solenoid valve device; 502. Trigger structure; 601, programmable logic controller; 602, communication module; 603, host computer. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the drawings, while other details that are not closely related to the present invention are omitted.

[0043] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0044] See also Figures 1 to 7 As shown, an embodiment of the present invention provides a mechanically actuated triggered pulse drive source device, which includes: a rectifier and filter module 100, a high-frequency boost module 200, a voltage doubler rectifier module 300, a pulse modulation module 400, a trigger module 500, and a control module 600 electrically connected to the high-frequency boost module 200, the voltage doubler rectifier module 300 and the trigger module 500 respectively.

[0045] The input end of the rectifying and filtering module 100 is used to connect to the mains to perform AC-DC conversion, convert the AC signal into a DC signal, reduce the voltage fluctuation of the mains, and output it from the output end of the rectifying and filtering module 100 .

[0046] In some embodiments, the rectification and filtering module 100 includes a full-bridge rectification circuit and an output voltage stabilizing capacitor; the full-bridge rectification circuit is connected to the mains; and the output voltage stabilizing capacitor is connected to the input end of the high-frequency boost module 200 .

[0047] The high-frequency boost module 200 is used to receive the DC signal and perform inversion and boosting to output a high-voltage AC signal.

[0048] See also Figure 2 As shown, the high-frequency boost module 200 includes a full-bridge inverter 201, a resonant unit 202, and a high-frequency transformer 203 which are electrically connected in sequence.

[0049] The voltage doubling rectifier module 300 is used to receive the high-voltage AC signal, perform voltage doubling rectification, and output a positive and negative bipolar high-voltage DC signal.

[0050] See also Figure 2 As shown, the voltage doubler rectifier module 300 includes a positive polarity voltage doubler rectifier circuit 301 , a negative polarity voltage doubler rectifier circuit 302 (bipolar voltage doubler rectifier circuit) and a high voltage sampling loop 303 .

[0051] The positive polarity voltage doubler rectifier circuit 301 and the negative polarity voltage doubler rectifier circuit 302 are connected in parallel.

[0052] Specifically, the positive polarity voltage doubler rectifier circuit 301 is used to output positive polarity DC high voltage, and the negative polarity voltage doubler rectifier circuit 302 is used to output negative polarity DC high voltage.

[0053] The high-voltage sampling loop 303 is provided with a high-voltage arm and a low-voltage arm, which can divide the positive polarity DC high voltage and the negative polarity DC high voltage in a certain ratio, and output a voltage feedback signal to the control module 600 at the low-voltage end.

[0054] During specific implementation, the city electricity can be converted into direct current through a full-bridge rectifier circuit and an output voltage stabilizing circuit after a circuit breaker. When charging starts, the control module 600 outputs a drive signal, which is sent to the gate of the switch device of the full-bridge inverter 201 through an isolation transformer arranged on the control module 600. Under the control of the drive signal, the full-bridge inverter 201 outputs a high-frequency signal, which passes through the resonance unit 202 and the high-frequency transformer 203, and then is doubled and rectified by the positive polarity double voltage rectifier circuit 301 and the negative polarity double voltage rectifier circuit 302 to obtain positive and negative bipolar direct current.

[0055] The pulse modulation module 400 is used to receive positive and negative bipolar high voltage DC signals and perform charging and energy storage.

[0056] See also Figure 3 and Figure 4 As shown, the pulse modulation module 400 includes a pressure vessel 401 and a plurality of single-stage PFN networks 410 .

[0057] The first-stage loops in the plurality of single-stage PFN networks 410 are kept grounded, while the remaining loops of the other stages are all floating.

[0058] The pressure vessel 401 is made of a cylindrical metal material and is filled with sulfur hexafluoride insulating gas at a certain pressure during normal operation to improve the insulation strength of the system. A power interface, a gas filling port and an optical fiber outlet are provided at the bottom of the pressure vessel 401 .

[0059] During specific implementation, the positive polarity direct current output by the positive polarity voltage doubler rectifier circuit 301 can be connected to the even-numbered stages of the several single-stage PFN networks 410 via a high-voltage cable, and the negative polarity direct current output by the negative polarity voltage doubler rectifier circuit 302 can be connected to the odd-numbered stages of the several single-stage PFN networks 410 via a high-voltage cable, so as to realize positive and negative bipolar charging of the several single-stage PFN networks 410. Figure 4 The number of PFN network levels in is 24.

[0060] Of course, those skilled in the art know that the number of stages of the single-stage PFN network 410 is not limited to 24, and any number of stages is acceptable.

[0061] See also Figure 5 As shown, the single-stage PFN network 410 includes a pulse capacitor 411 , a distributed inductor 412 , an isolation inductor 413 , and a switch 414 .

[0062] The pulse capacitor 411 may be a non-inductive ceramic high voltage capacitor or a mica capacitor.

[0063] The material of the distributed inductor 412 can be metal such as copper strip or aluminum strip.

[0064] The isolation inductor 413 can be manufactured by winding enameled wire on a polytetrafluoroethylene polymer rod.

[0065] The switch 414 is a spark gap switch, which can be made of metal materials such as brass, tungsten copper alloy, etc.

[0066] See also Figure 5 As shown, the single-stage PFN network 410 is composed of six pulse capacitors 411 connected in parallel, and the low-voltage end and the high-voltage end of the pulse capacitor 411 are respectively fixed to the distributed inductor 412; the switch 414 is placed in the middle position of the single-stage PFN network 410.

[0067] Those skilled in the art will appreciate that, in other implementations, the single-stage PFN network 410 may also be composed of 3 to 10 pulse capacitors 411 connected in parallel.

[0068] The trigger module 500 is used to trigger and turn on the pulse modulation module 400. When the pulse high voltage DC signal reaches a set voltage value, the trigger module 500 is activated to discharge the pulse modulation module 400.

[0069] See also Figure 7As shown, the trigger module 500 adopts a mechanically actuated solenoid valve device 501, and the mechanically actuated solenoid valve device 501 is controlled by the programmable logic controller 601; a trigger structure 502 is installed at the mechanically actuated solenoid valve device 501, and when the mechanically actuated solenoid valve device 501 is actuated, it can drive the trigger structure 502 to enter the gap of the switch 414, triggering the switch 414 to turn on.

[0070] During specific implementation, a four-level trigger structure 502 may be used, that is, when the mechanically actuated solenoid valve device 501 is actuated, the four-level switches 414 may be triggered simultaneously.

[0071] Of course, those skilled in the art know that the trigger structure 502 is not limited to four levels, and can be adjusted and changed according to the specific structure of the switch 414.

[0072] The control module 600 is used to control the high-frequency boost module 200 and the trigger module 500 and monitor the output of the voltage doubler rectifier module 300, and has the functions of charging, discharging, circuit parameter setting and real-time voltage display.

[0073] See also Figure 6 As shown, the control module 600 is based on a programmable logic controller 601, and establishes communication with a host computer 603 through a communication module 602, and can be remotely controlled through the host computer 603. In specific implementation, the communication module 602 and the host computer 603 can be connected using communication protocols such as RS485 and RS422, and optical fiber communication can be used between the host computer 603 and the programmable logic controller 601 to avoid electromagnetic interference.

[0074] The programmable logic controller 601 is provided with a safety protection program to prevent abnormal operation of the equipment due to human error. When no grounding signal is detected, the equipment cannot be started. When the voltage feedback signal output by the high-voltage sampling loop 303 exceeds the set maximum value, the equipment will automatically stop and power off.

[0075] Performance Test: Figure 8 The voltage pulse waveform output by the mechanically actuated trigger type pulse driving source device provided in this embodiment when the single-stage PFN is charged at 42kV is given, and the output waveform parameters are: voltage peak value of about 500kV, waveform half-peak width of about 80ns, 10%~90% rise time of about 32ns, indicating that the mechanically actuated trigger type pulse driving source device meets the requirements of driving a microwave source. In addition, due to the reasonable design and use of the isolation inductor 413 and the distributed inductor 412, the weight of the entire device can be reduced by about 20%.

[0076] Compared with the technical disadvantage of the traditional electrically triggered pulse drive source device that it is difficult to adjust the single-stage PFN charging voltage, the mechanically actuated triggered pulse drive source device provided in this embodiment can achieve stable output of the device within the single-stage PFN charging range of 8kV to 50kV, has a large triggering dynamic range, and effectively improves the reliability of the device operation.

[0077] In summary, in view of the hundreds of kilovolts of square wave voltage required to drive the load microwave source, the mechanically actuated trigger pulse drive source device provided by the present invention is designed with a two-stage boosting structure (front stage and rear stage). Among them, the front stage is a charging power supply, which is composed of a rectifier filter module 100, a high-frequency boost module 200, and a voltage doubling rectifier module 300; the rear stage is mainly composed of a pulse modulation module 400. After the tens of kilovolts of output voltage provided by the front stage charges the rear stage pulse modulation module 400, the trigger module 500 controls the conduction of the internal switch 414 of the pulse modulation module 400, and the output voltage can reach 500kV, which meets the demand of driving gigawatt-level high-power microwave sources.

[0078] The advantages of the present invention are that it adopts a two-stage structure, the front stage is a charging power supply, and the main topology is a series resonant constant current charging circuit; the back stage is mainly based on a pulse modulation module 400. The positive and negative bipolar charging method is adopted, and the number of switches 414 required is equal to half of the number of pulse modulation modules 400, which can greatly reduce the number of switches 414, which is conducive to improving the operation stability of the generator; the main body of the pulse modulation module 400 is designed for installation according to the central symmetric structure, which can ensure compactness while ensuring the uniformity of the distribution parameters as much as possible, and can suppress the stray parameters of the device and improve the output waveform quality; a mechanically actuated solenoid valve is used as a trigger device, and the internal field distribution of the switch 414 is distorted by driving the trigger structure 502 into the spark gap switch, so that the switch 414 is turned on, which has the advantage of a large trigger dynamic range; the whole device has a compact structure, is a full solid-state solution, adopts various anti-interference measures, optimizes the charging mode, and improves the circuit parameters, so that a high stability output state can be maintained, which is convenient for production, assembly and transportation, and can adapt to a variety of environments.

[0079] In summary, the present invention provides a mechanically actuated trigger pulse drive source device, comprising: a rectifier filter module, a high-frequency boost module, a voltage doubler rectifier module, a pulse modulation module, a trigger module, and a control circuit electrically connected to the high-frequency boost module, the voltage doubler rectifier module and the trigger module, respectively. The rectifier filter module is used for AC-DC conversion; the high-frequency boost module is used for receiving a DC signal and outputting a high-voltage AC signal after inverting and boosting; the voltage doubler rectifier module is used for receiving a high-voltage AC signal, and performing voltage doubler rectification processing to output a high-voltage DC signal; the pulse modulation module is used for charging and energy storage; the trigger module is used for enabling the pulse modulation module to establish a discharge circuit to discharge the load when the high-voltage DC signal reaches a preset value; the control circuit is used to control the high-frequency boost module and the trigger module, and monitor the output of the voltage doubler rectifier module. The pulse drive source device has the advantages of fewer switching levels, smaller stray parameters, and a wide trigger dynamic range.

[0080] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A mechanically actuated trigger pulse drive source device, characterized in that: It includes a rectifier filter module, a high-frequency boost module, a voltage doubler rectifier module, a pulse modulation module and a trigger module which are electrically connected in sequence; The input end of the rectifier and filter module is connected to the mains to perform AC-DC conversion, converting the AC signal into a DC signal, and outputting the DC signal from the output end of the rectifier and filter module; The high-frequency boost module is used to receive the DC signal and perform inversion boosting to output a high-voltage AC signal; The voltage doubler rectifier module includes a bipolar voltage doubler rectifier circuit and a high-voltage sampling circuit, which are used to receive the high-voltage AC signal, perform voltage doubler rectification, and output positive and negative bipolar high-voltage DC signals; The pulse modulation module is used to receive the high voltage DC signal and perform charging and energy storage; The trigger module is used to trigger and turn on the pulse modulation module. When the pulse high-voltage DC signal reaches a set voltage value, the trigger module is activated to discharge the pulse modulation module.

2. A mechanically actuated trigger type pulse drive source device according to claim 1, characterized in that: The mechanically actuated triggered pulse drive source device further comprises a control module; the control module is electrically connected to the high-frequency boost module, the voltage doubler rectifier module and the trigger module respectively.

3. The mechanically actuated trigger pulse drive source device according to claim 1, characterized in that: The rectification and filtering module comprises a full-bridge rectification circuit and an output voltage stabilizing capacitor; the full-bridge rectification circuit is connected to the mains, and the output voltage stabilizing capacitor is electrically connected to the input end of the high-frequency boost module.

4. The mechanically actuated trigger pulse drive source device according to claim 1, characterized in that: The high-frequency boost module comprises a full-bridge inverter, a resonance unit and a high-frequency transformer which are connected in sequence.

5. The mechanically actuated trigger pulse drive source device according to claim 2, characterized in that: The bipolar voltage doubler rectifier circuit comprises a positive voltage doubler rectifier circuit and a negative voltage doubler rectifier circuit which are arranged in parallel; the high voltage sampling loop is provided with a high voltage arm and a low voltage arm; the output voltage of the low voltage arm is directly fed back to the control module.

6. A mechanically actuated trigger type pulse drive source device according to claim 2, characterized in that: The pulse modulation module includes a pressure vessel and several single-stage PFN networks; the first-stage loop in the single-stage PFN network remains grounded, and the remaining loops of other stages are all floating; when the pressure vessel is working normally, it is filled with sulfur hexafluoride insulating gas at a preset pressure, and a power interface, a gas filling port and an optical fiber outlet are arranged at the bottom of the pressure vessel.

7. A mechanically actuated trigger pulse drive source device according to claim 6, characterized in that: The single-stage PFN network includes a pulse capacitor, a distributed inductor, an isolation inductor and a switch.

8. The mechanically actuated trigger pulse drive source device according to claim 7, characterized in that: The single-stage PFN network is composed of 3 to 10 pulse capacitors connected in parallel, and the low-voltage end and the high-voltage end of the pulse capacitor are respectively fixed to the distributed inductor; the switch is placed in the middle position of the single-stage PFN network.

9. The mechanically actuated trigger type pulse drive source device according to claim 7, characterized in that: The control module includes a programmable logic controller, a host computer, and a communication module electrically connected to the programmable logic controller and the host computer respectively; the programmable logic controller is provided with a safety protection program.

10. The mechanically actuated trigger type pulse drive source device according to claim 9, characterized in that: The trigger module adopts a mechanically actuated solenoid valve device, which is controlled by the programmable logic controller; a trigger structure is installed at the mechanically actuated solenoid valve device, and when the mechanically actuated solenoid valve device is actuated, the trigger structure can be driven to enter the gap of the switch to trigger the switch to turn on.

Citation Information

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