28 results about "Marx generator" patented technology

The invention discloses an electromagnetic pulse simulation method and device, electronic equipment and a storage medium, and relates to the technical field of electromagnetic pulse simulation. The pulse compression loop module is used for performing sharpening treatment to form a double-exponential waveform conforming to high-altitude electromagnetic pulse characteristics, and meanwhile, an upper polar plate and a lower polar plate of the transmission line structure module are used for converting pulse energy into a bounded wave radiation field so as to simulate the coupling effect of the high-altitude electromagnetic pulse on ground equipment; and finally, a PoE port effect experiment module is injected to evaluate the response characteristic, the damage mechanism and the system-level failure behavior, so that the problems of insufficient waveform reproduction precision, huge system size and difficulty in deployment caused by the adoption of a traditional Marx generator and a modular splicing structure in an existing high-altitude electromagnetic pulse simulation method can be solved; the technical effect of improving experiment repeatability and protection design accuracy is achieved.

The application discloses a Marx high-voltage pulse power supply based on a high-gain boost type DC-DC converter, and the circuit is composed of an input DC power supply, two power switching tubes, a switching inductor and a cascaded Marx generator; the cascaded Marx generator can be expanded to n levels, and can be used in application occasions requiring high-voltage pulse power supplies, such as cancer treatment in medical treatment, water treatment, waste gas treatment, sterilization, electron and ion beam generation and acceleration, electrostatic dust removal and the like. Under the same working condition, the Marx high-voltage pulse power supply can realize high-gain pulses, and compared with the existing Marx high-voltage pulse power supply, can realize lower switching power loss and higher voltage gain. Meanwhile, the Marx high-voltage pulse power supply also has the advantages of simple topological structure, few modules, few electronic devices and low cost. Therefore, the Marx high-voltage pulse power supply has important economic value and practical engineering significance.

The invention discloses a fault automatic braking method and system for an ultra-high pulse power device, and relates to the technical field of safety control of the ultra-high pulse power device. The method comprises the following steps: a fault detection step: detecting a self-breakdown fault and a power-down fault in a Marx generator charging process in parallel in real time; a fault signal generation step of generating a unified fault indication signal in response to the detected at least one of the self-breakdown fault or the power-down fault; and a trigger path self-locking step: sending the fault indication signal to a central trigger control unit, enabling a subsequent trigger command to be invalid by utilizing a built-in self-locking function of the central trigger control unit, and interrupting an experiment trigger sequence. Rapid fault detection and self-locking are realized through an automatic process, the problems of delay and unreliability of manual operation are solved, and the operation safety and the experiment success rate of the ultrahigh pulse power device are remarkably improved.

The application discloses a Marx generator inductance acquisition method, comprising the following steps: outputting single-stage area inductance according to the length and radius of the single-stage area in the single FMG discharge main circuit of the Marx generator; the single-stage area inductance comprises switch section inductance, high-voltage plate section inductance, capacitor section inductance and output section inductance; outputting backflow area inductance according to the distance between backflow plates, the width of the backflow area and the length of the backflow area in the single FMG discharge main circuit of the Marx generator; outputting output area inductance according to the length and radius of the output area in the single FMG discharge main circuit of the Marx generator; and outputting the total inductance of the Marx generator according to the single-stage area inductance, the backflow area inductance and the output area inductance and the number of the single-stage area, the backflow area and the output area in the single FMG discharge main circuit of the Marx generator. The method can more accurately acquire the Marx generator loop inductance.

The utility model provides an ignition pulse width adjustable MARX generator protection circuit, and belongs to the technical field of electric vacuum emission, the protection circuit comprises a sampling circuit, the sampling circuit comprises a current transformer and a sampling resistor R1, the current transformer is arranged between a high-voltage ignition signal generated by an MARX generator and a load, and the sampling resistor R1 is arranged on a secondary winding of the circuit transformer; the comparison circuit comprises a comparator, a first resistor R2 and a second resistor R3, the same-direction end of the comparator is connected with the current transformer, the reverse-direction end of the comparator is connected with a voltage division network formed by the first resistor and the second resistor, and the comparison circuit is used for comparing the sampling voltage of the high-voltage ignition signal with a set protection threshold voltage; the pulse width adjusting circuit comprises a monostable multivibrator, a third resistor and a capacitor, and the monostable multivibrator is grounded through a resistance-capacitance network formed by the capacitor and the third resistor; and the control circuit is connected with the pulse width adjusting circuit.

The invention discloses a compact Marx generator based on an impact ionization semiconductor device, and relates to the field of a pulse power technology and a power semiconductor device crossing technology. Comprising N stages of sub Marx generators which are cascaded in sequence, and each sub Marx generator comprises an impact ionization semiconductor device, a first charging isolation element, a second charging isolation element, an energy storage unit, a first ground capacitor and a second ground capacitor; for any stage of sub Marx generator, the first end of the impact ionization semiconductor device is connected with the first end of the first charging isolation element, the first end of the first ground capacitor and the first end of the energy storage unit, the second end of the first ground capacitor is grounded, the second end of the impact ionization semiconductor device is connected with the first end of the second charging isolation element, and the second end of the second charging isolation element is grounded. The second end of the second charging isolation element is connected with the second end of the energy storage unit and the first end of the second ground capacitor, and the second end of the second ground capacitor is grounded. According to the compact Marx generator, the conduction safety is improved.

The invention discloses a repetition frequency nanosecond pulse power source of a Marx generator based on impedance matching. The repetition frequency nanosecond pulse power source comprises a pulse forming unit, an impedance matching network and a trigger control unit which are integrated in a closed box body, the impedance matching network comprises a conical cylindrical inner conductor and multiple stages of cylindrical outer conductors which are sequentially and coaxially arranged from top to bottom, the bottom ends of the outer conductors are connected with the last-stage outer conductor, the top ends of the outer conductors are connected with an external load, and the multiple stages of outer conductors and the inner conductor form a central coaxial transmission line; the pulse forming unit comprises a plurality of stages of discharge loops which are stacked in series, and each stage of discharge loop corresponds to one stage of outer conductor; each stage of discharge loop comprises a plurality of discharge modules which are annularly arranged at equal intervals around the corresponding outer conductor; and the trigger control unit is used for generating nanosecond leading edge trigger pulses to drive the high-voltage switches of the discharge loops at all levels to be switched on. According to the invention, the cost and the size of the power source can be reduced, the energy transmission efficiency is improved, the synchronous triggering precision is improved, and the repeated-frequency nanosecond pulse output capability is stable.

The application discloses a pulse top drop compensation circuit of a Marx generator based on a resonance circuit, and comprises: compensation of pulse top drop under different loads and different pulse widths. In applications such as particle accelerators, the voltage and current top drop of a high-voltage pulse should be as low as possible; in the Marx generator, when the resonance inductance and the compensation switch are connected in series and are connected in parallel with the main capacitor in the common unit, the compensation unit is obtained. In the discharge process, the nearly linear part of the sine voltage is added to the load as pulse compensation, and a nearly top-drop-free rectangular pulse is realized. Different compensation unit numbers can compensate the voltage top drop to different degrees, and the compensation effect is adjustable. In addition, as long as the resonance control switch is turned off, the compensation units can also work as common units in the Marx generator, so as to be utilized. According to the application, the compensation degree can be adjusted, the capacitance and the system cost can be greatly reduced, and good feasibility and application prospect are possessed.

The utility model belongs to the technical field of pulse power, and particularly discloses a Marx generator. The generator comprises a multi-stage charging and discharging unit; except the first-stage charging and discharging unit, the other stages of charging and discharging units comprise auxiliary trigger circuits; the auxiliary trigger circuit is used for applying a trigger pulse to the base electrode of the bipolar transistor in the charge-discharge unit when the charge-discharge unit at the previous stage discharges, so that the charge-discharge unit is conducted and discharges; wherein the first-stage charge and discharge unit is used for driving the generator to perform avalanche discharge under the condition that each stage of charge and discharge unit completes charging and receives a trigger signal; the last-stage charging and discharging unit is used for connecting a load resistor so as to generate target pulse signals at the two ends of the load resistor. According to the Marx generator, the thermal damage phenomenon of a bipolar transistor in a traditional Marx generator can be avoided, and reliable operation of the Marx generator under the repetition frequency pulse working condition is effectively achieved.

The invention relates to a Marx generator (1), each capacitor stage (4.1, …, 4.n) of which comprises a first electrical insulation device (31), arranged in the interior space defined by the capacitor of the capacitor stage and extending over the length of the internal face of the capacitor (7), and a second electrical insulation device (32), arranged inside the first electrical insulation device (31), coaxially with the common axis (X-X) and extending along the length of the internal face of the capacitor (7), the generator (1) comprising a first impedance element (41), arranged between the first electrical insulation device (31) and the second electrical insulation device (32), and a second impedance element (42), arranged inside the second electrical insulation device (32).

The invention relates to a Marx generator comprising a circuit comprising at least two capacitors arranged to be charged in parallel and discharged in series. The circuit comprises at least two spark gap switches, where each spark gap switch comprises two electrodes separated by a gap distance filled with a pressurized gas, each spark gap switch is configured to allow an electric spark to pass between two electrodes of the spark gap switch in the event that a potential difference between the two electrodes exceeds a breakdown voltage, and wherein the Marx generator comprises a regulating unit, and an adjustment unit configured to adjust a gap distance between two electrodes of each of the at least two spark gap switches in order to control the output voltage, where the adjustment unit is configured to adjust the gap distance by means of a voltage-controlled actuator and / or a capacitance-controlled actuator.

The invention relates to a Marx generator (1) in which each capacitor stage (4.1, …, 4.n) comprises a first electrical isolation device (31), disposed in the internal space defined by the capacitor of said capacitor stage and extending along the length of the inner face of the capacitor (7), and a second electrical isolation device (32), disposed inside the first electrical isolation device (31), coaxially to the common axis (XX) and extending along the length of the inner face of the capacitor (7), the generator (1) comprising a first impedance element (41), disposed between the first electrical isolation device (31) and the second electrical isolation device (32) and electrically connecting the input terminal of the generator (1) and the downstream spark gap heads (25) of the capacitor stages (4.1, …, 4.n).n), and a second impedance element (42), disposed inside the second electrical isolation device (32) and electrically connecting the upstream spark gap heads (26) of the capacitor stages (4.1, …, 4.n) to the output terminal of the generator (1). Figure for the abbreviation: Figure 1.

A compact, modular, and scalable pulsed power-driven radiation source system utilizes Dense Plasma Focus assemblies and Ion Ring Marx Generators in a novel configuration to generate ultra-intense charged particle beams. The system's WARP core integrates coaxially aligned, face-to-face Dense Plasma Focus assemblies with reflex triodes and magnetic flux compression to achieve significantly enhanced energy outputs. The invention enables efficient energy production, advanced propulsion capabilities, and new avenues for high-energy physics research while maintaining a reduced physical footprint compared to traditional accelerators. The system achieves GeV-level particle energies through controlled plasma and charged particle ring compression and acceleration, offering applications in nuclear fusion, advanced space propulsion, and radiographic analysis.

An electron beam source includes a vacuum chamber containing a cathode and an anode separated by a vacuum gap forming a local full-voltage capacitive structure storing electrical energy at an operating voltage. A high-voltage power supply charges the capacitive structure without an intervening Marx generator, linear transformer driver, Tesla transformer, pulse-forming network, or pulse-forming transmission line. A triggering arrangement initiates electron emission to produce electron pulses traversing the vacuum gap, with discharged electrical energy transferred predominantly to electrons crossing the gap. In some embodiments, the local capacitive structure stores a majority of total electrical energy stored at the operating voltage in capacitances directly coupled between conductors at cathode and anode potentials. Multi-beam configurations, beam steering, passive synchronization, and contamination management features may be included.

According to an embodiment a method is disclosed for determining an efficiency of a drilling process performed by an electro pulse drill comprising a drill head (103) driven by a Marx generator (100) provided to produce an electric discharge current (200, 300) penetrating a medium, the electric discharge current (200, 300) flowing between a first and second drill tip and the electric discharge current (200, 300) originating from a high-voltage pulse generated by the Marx generator (100) comprising a set of spark gaps (110-113) between capacitors (130-133), the method comprising the steps of capturing radiation at a Marx generator spark gap (110) being produced when the Marx generator (100) discharges; filtering the captured radiation at a predefined wavelength; and measuring a duration of a time period during which the filtered radiation is above a predefined threshold; determining the efficiency of the drilling process based on the measured duration (201, 301).

The application belongs to the technical field of pulse power, and specifically discloses a Marx generator and a running method thereof. The Marx generator comprises a double-sided PCB board and N-stage charge-discharge cascade units connected in sequence. In the N-stage charge-discharge cascade units, each first unit with an odd cascade order is arranged on one side of the double-sided PCB board in sequence, and each second unit with an even cascade order is arranged on the other side of the double-sided PCB board in sequence. Each first unit and its adjacent second unit are electrically connected through a preset through hole in the double-sided PCB board. The first unit in the N-stage charge-discharge cascade units drives the generator to perform avalanche discharge when the charge of each stage of the charge-discharge cascade units is completed and a trigger signal is received. The last unit is connected to a load to generate a target pulse signal across the load. Through the application, the parasitic inductance of the internal circuit of the Marx generator can be effectively reduced, and the quality of the output pulse signal can be improved.

A Marx configuration has a housing surrounding an interior, and a Marx generator arranged in the interior. The Marx generator has a plurality of capacitor stages connected in series, each having at least one first and one second voltage terminal, and respective cross branches. Each two adjacent capacitor stages between the first terminal of the preceding and the second terminal of the following capacitor stage are connected by one of the cross branches. Each of the cross branches contains a spark gap, a sealed gas space for an insulating gas for the spark gaps which are arranged in the interior and at least two of the spark gaps. All spark gaps are arranged in a respective gas space, and the interior contains a sealed fluid space for a cooling fluid for the Marx generator. A base support disposed in the interior and surrounds the gas space partially.

The application relates to a high-voltage pulse capacitor examination method, in particular to a high-voltage pulse capacitor life examination method for a multi-path parallel Marx generator, and solves the technical problem that the existing capacitor life examination method is not applicable to the actual service life examination of the high-voltage pulse capacitor for the multi-path parallel Marx generator. The high-voltage pulse capacitor life examination method for the multi-path parallel Marx generator comprises the following steps: 1) establishing a single-stage equivalent circuit of the Marx generator; 2) establishing a resonance equivalent circuit of the Marx generator; and 3) alternately examining 2n measured capacitors in the single-stage equivalent circuit of the Marx generator and the resonance equivalent circuit of the Marx generator, wherein n is an integer greater than or equal to 1, and important data support is provided for reliability evaluation of the internal capacitors of the multi-path parallel Marx generator.

This invention discloses a Marx generator top-drop compensation circuit with energy recovery function, relating to the field of pulse power technology. The circuit includes a front-end energy storage unit, a compensation capacitor unit, an inductor unit, a first switching unit, a second switching unit, and a diode unit. The compensation capacitor unit is configured to be connected in series in the discharge circuit of the Marx generator. During the output pulse of the Marx generator, the circuit is in compensation mode, and the first switching unit controls the transfer of energy from the front-end energy storage unit to the compensation capacitor unit to compensate for the voltage drop of the main energy storage capacitor. After the pulse ends, the circuit is in reset mode, and the second switching unit, together with the diode unit and the inductor unit, forms a boost circuit to feed the energy from the compensation capacitor unit back to the front-end energy storage unit. This invention aims to achieve high-precision pulse top-drop compensation and effectively recover energy.

The utility model provides a limiting buckle module and a Marx generator machine core lifting appliance, which are used for solving the technical problems that the Marx generator machine core in the existing lifting mode is unstable to lift, the operation safety is influenced, and the lifting operation efficiency is seriously influenced as the Marx generator machine core needs to be lifted repeatedly. The utility model provides a limitable buckle module which comprises a buckle base plate, two guide rods, a buckle groove block, a push-pull long pin, a front fixing plate, a rear fixing plate, a push-pull handle, a front limiting screw, a rear limiting screw and a long pin clamping spring, and the front fixing plate and the rear fixing plate are fixedly arranged at the two ends of the lower surface of the buckle base plate respectively. The two guide rods are fixedly connected between the front fixing plate and the rear fixing plate in parallel, the push-pull long pin drives the buckle groove block to slide back and forth along the guide rods, bidirectional limiting is achieved through cooperation of the front limiting screw and the rear limiting screw and rotation of the push-pull handle, connection is firm and reliable, and potential safety hazards such as accidental slippage are effectively prevented.

An apparatus suitable for welding a substrate, comprising a sealed container / chamber 200 and a pump for creating a vacuum within the chamber. The chamber comprises a power source with positive and negative poles. A substrate with a surface comprising uniform peaks is connected to the negative pole, and a material to be welded to the substrate is connected to positive pole. The apparatus may comprise a plurality of capacitors, a Marx generator, a Cockcroft-Walton generator, or a getter for removing oxygen, nitrogen and water vapour. The vacuum pump may comprise a plurality of jet water pumps. [Fig. 2]

The invention discloses a pulse electric field generation system and method with an extremely high change rate, the pulse electric field generation system comprises a grounding unit, a hoisting unit, an electrode unit, an MARX generator unit and a wave chopping unit, the grounding unit is used for bearing a tested product, and the tested product is grounded through the grounding unit; the hoisting unit is used for hoisting the electrode unit and suspending the electrode unit above the tested product; the MARX generator unit is used for outputting full-wave waveforms of thunder and lightning; the wave cutting unit is electrically connected to the electrode unit and the MARX generator unit, the lightning full-wave waveform is cut off through the wave cutting unit to obtain a cut waveform, and the electrode unit forms a pulse electric field with an extremely high change rate between the electrode unit and the tested product through the cut waveform.

The invention discloses a method for reducing self-discharge probability and influence of a plurality of Marx generators in a pulse generation system, and solves the problems of self-discharge probability, Marx generator establishment time jitter and contradiction between protection action and invalid test generation reduction in a'low under-voltage ratio 'technology and a'protection technical scheme'. According to the invention, a set of complete control strategy is formed by combining four strategies of switch undervoltage ratio matching, charging mode optimization, self-discharging protection and power synthesis and distribution, so that the self-discharging probability of the Marx generator and the influence caused by the self-discharging probability are effectively reduced, power flow is prevented from being further transmitted to a downstream load, and the service life of the Marx generator is prolonged. And the failure or damage of the load, the tested object and other devices is caused.

The invention discloses a high-voltage collaborative pulse generation system which comprises a user interface, a control unit, a driving circuit, a charging module and a collaborative pulse generation device. The cooperative pulse generation device is a Marx generator; the charging module charges a high-voltage pulse main capacitor bank of the Marx generator according to the obtained high-voltage control signal so as to obtain a high-voltage processing pulse; the Buck circuit reduces the voltage of the direct current charging power supply output of the charging module according to the obtained duty ratio and outputs the voltage to a low-voltage pulse main capacitor bank of the Marx generator, the capacitor bank is charged, and a low-voltage processing pulse is obtained; the Marx generator generates high and low voltage pulse signals with different parameters according to the driving signal and the charging control signal; the electrode transmits high-low voltage cooperative pulses generated by the Marx generator circuit to a load to be processed. Only one direct-current charging power supply is needed, part of circuit elements are shared, the utilization efficiency of all the elements is greatly improved, and the manufacturing cost is reduced.

The application discloses a pulse magnetic field test method and system based on a MARX generator, and the pulse magnetic field test method comprises the following steps: a tested product mounting step, in which the tested product is mounted on a base; a current loop mounting step, in which two current loops are mounted on the base, and the two current loops are respectively located on two sides of the tested product; and a discharge test step, in which a pulse current wave is output by the MARX generator to the current loops to form a pulse magnetic field, so that the tested product is tested for a lightning indirect effect.

The present application relates to a kind of pulse power devices, specifically to a kind of ultraviolet preionization gas switch for fast Marx generator, solve the problem that ultraviolet preionization structure is difficult to be applied in large scale in high-power gas switch.The ultraviolet preionization gas switch for fast Marx generator, including switch shell, and the upper electrode in the switch shell, lower electrode, preionization resistance, resistance connecting plate, trigger electrode;Preionization resistance and resistance connecting plate, trigger electrode coaxial arrangement;The other end of preionization resistance and trigger electrode form preionization gap;Preionization gap is located between upper electrode and lower electrode, and the potential difference between the other end of preionization resistance and one end of trigger electrode, so that preionization gap is broken down, and release ultraviolet light.The present application can realize the characteristics of ultraviolet preionization gas switch low jitter, low trigger threshold, low inductance, high reliability and long life, can satisfy the application demand of fast Marx generator.

The invention relates to the technical field of pulse generators, and discloses a picosecond rising edge ultrahigh pressure narrow pulse generator, which comprises a narrow pulse generator body and a Marx generator integral packaging cavity, and is characterized in that a heating element in the Marx generator integral packaging cavity is connected with a shell through a beryllium copper alloy spring needle; a heat dissipation mechanism is arranged in the Marx generator overall packaging cavity, the heat dissipation mechanism comprises a copper base, heat pipes are symmetrically and fixedly connected to the side, away from the insulating coating, of the copper base, and the symmetrical heat pipes extend to the outside and are jointly connected with heat dissipation fins which are evenly distributed; the copper base is pressed through the symmetrical pressing pieces, and auxiliary pieces are arranged between the copper base and the symmetrical pressing pieces. Heat conduction and absorption are achieved through mutual conversion and circulating motion of water vapor and water in the evaporation section heat pipe and the condensation section heat pipe; and the auxiliary part can act on the pressing part in turn by means of the absorbed heat, so that the situation that the heat conduction efficiency is reduced due to untight contact of the insulating coating of the copper base is avoided.

The invention relates to a special impulse voltage test system and method for steep waves of a disc-shaped suspension insulator of a power transmission line and a storage medium. The special impulse voltage test system comprises a pulse generation module, a measurement module, an electrode module, a control module, a safety interlocking module and an energy management module. The pulse generation module adopts a multi-stage Marx topological structure, and steep wave impulse voltage is generated through asymmetric voltage-multiplying charging and optical fiber trigger control; the measurement module realizes accurate reduction of high-voltage waveforms based on a resistance-capacitance hybrid voltage divider and a frequency response compensation algorithm; the electrode module realizes gapless electric field application through a high-voltage electrode and a net-shaped grounding electrode which are matched in curvature; the control module takes a PLC as a core to coordinate charging regulation and control, waveform selection and safety interlocking; and the safety interlocking module executes emergency shutdown through entrance guard monitoring and grounding state feedback. During operation, charging parameters are set, the Marx generator is triggered, and an insulation performance evaluation report is generated after voltage division signals are collected. The system solves the technical blank of testing the impact breakdown performance of the insulator in the air.