Showing papers on "Marx generator published in 2012"

FPGA-Controlled All-Solid-State Nanosecond Pulse Generator for Biological Applications

Abstract: In vivo studies of tumor-cell apoptosis induced by nanosecond pulsed electric field require high-voltage nanosecond pulses delivered to the biological tissues. In this paper, a newly developed all-solid-state nanosecond pulse generator based on the Marx generator concept is proposed for this application. The generator comprises four parts: a dc charging power, a solid-state Marx circuit using metal-oxide-semiconductor field-effect transistors, a control circuit using a field-programmable gate array, and the load. This generator has the capability of producing repetitive pulses with a voltage up to 8 kV, pulsewidth of 200-1000 ns, rise time of 35 ns, and repetition rate of 1-1000 Hz with various resistive loads and 1-kV dc input voltage. The all-solid-state design makes the generator compact and reliable. Initial experiments were carried out to verify the performances of the proposed generator.

Inductive Pulsed Power Supply Consisting of Superconducting Pulsed Power Transformers With Marx Generator Methodology

Abstract: We have been developing an inductive pulsed power supply (PS) consisting of several superconducting pulsed power transformers with Marx generator methodology. Each of these pulsed power transformers consists of a copper secondary winding and a high-temperature superconducting primary winding. In order to obtain a high-voltage impulse, the Marx generator should be charged via the parallel connection of capacitors and discharged via a series connection. In contrast, this superconducting pulsed PS is excited in series connection of superconducting primary windings and discharged in the parallel connection to obtain a large pulsed electric current. Our preliminary experiment result showed that the process of one transformer module was correct. In this paper, the characteristics and simulation results of the superconducting inductive pulsed PS are described.

Study on Decomposition of Indoor Air Contaminants by Pulsed Atmospheric Microplasma

Abstract: Decomposition of formaldehyde (HCHO) by a microplasma reactor in order to improve Indoor Air Quality (IAQ) was achieved. HCHO was removed from air using one pass through reactor treatment (5 L/min). From an initial concentration of HCHO of 0.7 ppm about 96% was removed in one pass treatment using a discharge power of 0.3 W provided by a high voltage amplifier and a Marx Generator with MOSFET switches as pulsed power supplies. Moreover microplasma driven by the Marx Generator did not generate NOx as detected by a chemiluminescence NOx analyzer. In the case of large volume treatment the removal ratio of HCHO (initial concentration: 0.5 ppm) after 60 minutes was 51% at 1.2 kV when using HV amplifier considering also a 41% natural decay ratio of HCHO. The removal ratio was 54% at 1.2 kV when a Marx Generator energized the electrodes with a 44% natural decay ratio after 60 minutes of treatment.

Repetitive Frequency Marx Generator Based on Magnetic Switches and Its Application in Dielectric Barrier Discharge

Abstract: In this paper, a novel repetitive frequency steep front pulse generator is proposed. Based on the topology of a three-stage magnetic pulse compressor followed by a three-stage Marx generator, in which conventional spark gaps are replaced by magnetic switches, the generator realizes a repetitive frequency of 1 kHz, an output pulse magnitude of 17 kV, and a rise time of 80 ns. Dielectric barrier discharge driven by it has also been conducted; voltage and current waveforms along with a gas discharge image have been presented. Calculation of air gap voltage and barrier voltage, and discharge current and displacement current shows that two discharges of opposite polarity occur in one voltage pulse and the secondary discharge consumes much lower energy than the first one.

Methods for characterizing x-ray detectors for use at the National Ignition Facility.

Abstract: Gated and streaked x-ray detectors generally require corrections in order to counteract instrumental effects in the data. The method of correcting for gain variations in gated cameras fielded at National Ignition Facility (NIF) is described. Four techniques for characterizing the gated x-ray detectors are described. The current principal method of characterizing x-ray instruments is the production of controlled x-ray emission by laser-generated plasmas as a dedicated shot at the NIF. A recently commissioned pulsed x-ray source has the potential to replace the other characterization systems. This x-ray source features a pulsed power source consisting of a Marx generator, capacitor bank that is charged in series and discharged in parallel, producing up to 300 kV. The pulsed x-ray source initially suffered from a large jitter (∼60 ns), but the recent addition of a pulsed laser to trigger the spark gap has reduced the jitter to ∼5 ns. Initial results show that this tool is a promising alternative to the other flat fielding techniques.

The evolution of pulsed modulators from the Marx generator to the Solid State Marx modulator and beyond

Abstract: The pulsed modulator has evolved from the early spark gap Mark Generators thru many different design forms to the present in which the Marx design returns using Solid State switches. The paper will chronicle the different types of pulsed modulators, including hard tube/switched modulators, pulse forming network modulators, induction/fractional turn modulators and Marx type modulators. The use of the various types of modulators for short and long pulse operation is reviewed. The advantages and disadvantages of the different types of modulators are evaluated and their possible use in present requirements and future applications is discussed. In addition, the paper speculates on the possible evolutional direction in which modulators might change or develop in the future.

Experimental study on hard radiation from long laboratory spark discharges in air

Abstract: The detection of hard radiation emanating from an electrical discharge in air is still a mysterious phenomenon. This thesis focuses on collecting experimental data around spark condition that could lead to the production of energetic photon bursts. Long spark discharges with positive and negative polarity in air are studied. We accurately measure the electrical currents on both electrodes during the formation of the discharge. The Xrays are detected with scintillation detectors, time synchronized with the electrical parameters. Bursts up to several 100 keV photons are observed. The advantage of ‘laboratory lightning’ is the controlled environment that allows to study the distribution of the X-rays in space and time. The experiments are performed in the high voltage laboratory at Eindhoven University of Technology. A 2 MV twelve stage Marx generator, with a standardized lightning impulse with 1.2/50 µs rise/decay time to half-maximum when unloaded, delivers the high voltage air breakdown. A 9 m tall 1:2000 capacitive high voltage divider (part of the waveshaping circuit) is used to monitor the voltage waveform produced by the Marx generator. The generator is connected to a spark gap with two conical electrodes at distances varying between 0.76 and 1.46 m. The current at the grounded electrode is measured by a Pearson current probe. An identical probe around the high voltage electrode was connected through a fiber optical data transmission system for electrical isolation. Electromagnetic disturbance from the discharge itself was reduced to a negligible level in the measurements by proper design of the cables and protection equipment. Fast X-ray detectors with good energy resolution are imperative for reliable X-ray registrations. We use conventional NaI(Tl), nanosecond fast BaF2 and two newly developed LaBr3(Ce+) scintillation detectors, all with suitable photomultiplier integrated. Later the DTU National Space Institute assisted in the experiments with a test Cadmium Zinc Telluride (CZT) semiconductor detector intended for the Atmosphere-Space Interactions Monitor (ASIM) project. In early measurements partial discharges at unexpected positions occurred that could also produce X-rays. This effect could be controlled by covering sharp protrusions with conducting foil. The currents measured through both electrodes differ substantially during the firsts few microseconds. This is caused by the Ramo-Shockley effect. In the development phase of the discharge a charge cloud developed around the high voltage electrode and most of the associated electric field lines end in the environment of the grounded electrode, but not on the electrode. Through this current difference between both electrodes it was possible to tell where burst of X-rays are formed. For both polarities of the high voltage, the bursts of X-rays are associated with the negative streamer formation at the cathode. For positive polarity surges X-ray bursts detected coincide with the onset of the upward negative streamer prior to the bridging of the electrode distance. In the case of negative polarity surges X-ray bursts coincide with the negative streamers immediately at the onset of the spark formation. No X-rays have been detected during the large current of the gap breakdown. At gap breakdown both currents become equal. In a parallel investigation we confirmed that the LaBr3(Ce+) scintillation detector suited best for our experimental study because of the short decay time compared with NaI(Tl) and the better energy resolution compared with BaF2. Still, we found that pile-up of multiple photons and/or electrons can occur in the LaBr3(Ce+) detectors in the 23 ns of the 1/e decay. The LaBr3(Ce+) detector has been calibrated and tested for its linearity at photon energies between 59.5 and 2505 keV, employing photomultiplier bias voltages from 568 up to 1000 V. Preliminary X-ray measurements with a small CZT semiconductor detector gave no conclusive results due to the poor detection events (6 out of 100) obtained. Additional experiments with a larger detector for higher detection rates are recommended for a better understanding of the particle distributions involved. An additional experiment was carried out to confirm the emission of X-ray during the streamer phase of an electrical discharge in air. Streamer filaments were produced in a small streamer-corona reactor with nanosecond high voltage pulses up to 65 kV with an optional 20 kVdc offset. The short high voltage pulse period prevents the streamers to develop into an air breakdown. The LaBr3(Ce+) scintillation detector recorded X-rays from the streamer filaments with very consistent timing of occurrences. This proves that processes near the streamers heads are able to produce X-rays. Various results were presented at a number of international conferences and workshops. Chapter 3 and Chapter 4 have been published in Journal of Physics D: Applied Physics.

Impulse Voltage Generator design and the potential impact on Vacuum Interrupter de-conditioning

Abstract: Impulse Voltage Test Systems based on a Marx multiplier circuit are often used to simulate lightning impulses to test electrical components and systems. The Impulse Voltage Generator (IVG) or Marx generator is the heart of the system and comes in many shapes and sizes but the basic circuit has, since the invention by Erwin Otto Marx in 1924, not radically changed. When testing to relevant International Standards, the pulse shape of the IVG output voltage is clearly defined, but the allowed stress imposed on the Test-Object, when a breakdown would occurs, is not prescribed in any way. In modern IVG designs, we see that substantially larger impulse capacitors are used compared to units build some years ago. It is demonstrated that because of this design change, the charge through the Test-Object, after a breakdown, has become substantially higher. As the conditioning or de-conditioning of Vacuum Interrupters (VI's) is strongly related to the breakdown charge, the question raises if the pass or fail probability during impulse voltage testing would be IVG dependent. At first, the basic IVG circuit is looked at. After that, the impact of component choices on the current and charge through the Test-Object at a breakdown is discussed. Also the need to add additional resistors in the load circuit, to prevent high current oscillations, is addressed. Finally, a number of IVG's in service in various test labs around the world has been compared and it is shown that the stress imposed on the Test-Object when a breakdown would occur varies widely from lab-to-lab.

MOUNA: An Autonomous, Compact, High-Power, and Wideband Electromagnetic Source Based on a Novel Resonant Pulsed Transformer

Abstract: Nowadays, a broad range of modern defense applications requires compact pulsed power generators to produce high-power electromagnetic waves. In a conventional design, such generators consist of a primary energy source and an antenna, separated by a power-amplification system, such as a Marx generator or a Tesla transformer, which forwards the energy from the source to the antenna. The present system, however, uses a novel and very compact high-voltage resonant pulsed transformer to drive a dipole antenna. The complete pulsed power source, termed MOUNA (French acronym for “Module Oscillant Utilisant une Nouvelle Architecture”), is composed of a set of batteries, a dc/dc converter for charging four capacitors, four synchronized spark gap switches, a resonant pulsed transformer that can generate 555 kV/265 ns pulses, an oil peaking switch and, during preliminary testing, a dipole antenna. The paper not only provides design details for each system component, but also presents the mechanical arrangement of the complete pulsed power system and the electrical diagnostics, particularly those related to measurement of the resonant transformer output waveform, the line oscillations, and the radiated electric field.

Critical Parameters of the Pumping Scheme of Ar +8 Lasers Excited by Z Pinches in Long Capilaries

Abstract: The present study is focused on the demonstration of the most critical parameters of the pumping scheme of a table-top Ar+8-laser excited by discharges with relatively low current and voltage (I ≤ 20 kA, U ≤ 200 kV) in long (L ∼ 0.5 m) capillaries. The most critical parameters of the pumping scheme were analyzed and then adjusted experimentally. The table-top size is attributed to the use of a low-inductance co-axial discharge configuration that decreases the voltage and current necessary for laser excitation. Low inductance is achieved by using a capillary, water-capacitor and water spark-gap placed into a chamber filled with deionized water. The capillary z-pinch is produced by the water capacitor, which is pulse-charged by a six-stage Marx generator, optimized for the low-inductance discharge configuration. Optimization is performed by adjusting the value of the charging inductance and the peak charging voltage with a water spark-gap. At the optimal conditions laser pulses with a Gaussian-like intensity distribution and divergence angle ∼ 1 mrad and energy ∼ 10 μJ are generated. The physical method for generation of a laser beam with such parameters is based on the use of a long (L = 0.45 m) capillary plasma (© 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

Modular Trigger Generator for an Overvoltage-Triggered Marx Generator

Abstract: Overvoltage triggering of a spark gap enables a synchronized operation of several Marx generators in repetitive operation without an increased wear of the electrodes. In order to generate the trigger pulses and apply them to one spark gap of a Marx generator, a modular semiconductor-based pulse generator in combination with a transformer has been developed. As the power required for triggering depends on stage voltage and stray capacitance values of the Marx generator, a modular setup enables an easy adaptation of the trigger generator design to different types of Marx generators. The trigger generator consists of several stacked stages, each equipped with its own power supply and pulse generator on stage potential. Each stage is supplied by the charging current of the Marx generator. This paper describes the new design of the trigger generator and compares it to the already existing design of a compact trigger generator.

The energy and cost calculation for a Marx pulse generator based on input DC voltage, capacitor values and number of stages

Abstract: Visualization of the energy equation can simplify understanding the performance of a Marx pulse generator. In this paper, the energy of a Marx pulse generator is calculated and visualized for input dc voltage from 1 to 20 kV, value of the capacitor from 1 to 33 nF and the number of stages from 1 to 20 stages. Moreover, in order to calculate the approximate cost of the Marx pulse generator, an equation proposed and evaluated.

Solid-State Bipolar Marx Generator with Voltage Droop Compensation

Abstract: This paper addresses the voltage droop compensation associated with long pulses generated by solid-stated based high-voltage Marx topologies. In particular a novel design scheme for voltage droop compensation in solid-state based bipolar Marx generators, using low-cost circuitry design and control, is described. The compensation consists of adding one auxiliary PWM stage to the existing Marx stages, without changing the modularity and topology of the circuit, which controls the output voltage and a LC filter that smoothes the voltage droop in both the positive and negative output pulses. Simulation results are presented for 5 stages Marx circuit using 1 kV per stage, with 1 kHz repetition rate and 10% duty cycle.

Full-automatic intelligent strong fast-rise electromagnetic pulse generating device

Abstract: The invention relates to a full-automatic intelligent strong fast-rise electromagnetic pulse generating device. The full-automatic intelligent strong fast-rise electromagnetic pulse generating device comprises an electromagnetic pulse generator, an on-site monitor, a remote control terminal and an intelligent controller, wherein the output end of the intelligent controller is connected with the input end of the electromagnetic pulse generator; the electromagnetic pulse generator is used for generating a strong fast-rise electromagnetic pulse field; the on-site monitor is used for monitoring statuses of an object to be tested, the electromagnetic pulse generator and the intelligent controller; the remote control terminal is used for sending a test parameter and a program-controlled triggercommand from a long distance; the intelligent controller is used for receiving data of the remote control terminal and enabling the electromagnetic pulse generator to act according to the command; and the electromagnetic pulse generator comprises an MARX generator, a gas distributing unit and a peaking circuit. The full-automatic intelligent strong fast-rise electromagnetic pulse generating device solves the technical problems of large time and labor consumption and low efficiency, simplifies the test process, shortens the test time, reduces the artificial test error and improves the test efficiency.

Design and test of induction voltage adder driven by 3 Blumlein PFLs

Abstract: We designed an induction voltage adder with three induction cells. Each induction cell is driven by a Blumlein pulse forming line. The Blumlein pulse forming lines have gas switches triggered by a compact Marx generator. We used amorphous metal tape cores for the induction cells because of their large flux swing. The induction voltage adder was tested for a copper sulfate liquid resistor. We have presented the features of design and the preliminary test results.

Grid Integration of Offshore Wind Farms Using Modular Marx Multilevel Converters

Abstract: This paper proposes the use of a Modular Marx Multilevel Converter, as a solution for energy integration between an offshore Wind Farm and the power grid network. The Marx modular multilevel converter is based on the Marx generator, and solves two typical problems in this type of multilevel topologies: modularity and dc capacitor voltage balancing. This paper details the strategy for dc capacitor voltage equalization. The dynamic models of the converter and power grid are presented in order to design the converter ac output voltages and the dc capacitor voltage controller. The average current control is presented and used for power flow control, harmonics and reactive power compensation. Simulation results are presented in order to show the effectiveness of the proposed M3C topology.

500 kV all-solid-state Marx generator

Abstract: The paper presents a 500 kV all-solid-state Marx generator adopting Z type circuit. In this Marx generator, twenty-eight isolated gate bipolar transistors(IGBTs) serial modules were utilized as controllable switches. The maximum working voltage of each IGBTs module was designed as high as 22 kV, and the repetition rate at full load condition was designed as high as 200 Hz. The ladder type pulse-forming-networks (PFNs) consisting of metallized film capacitors and wound inductors were designed as energy storage and pulse-forming components. Experimental results indicate that the Marx generator can run with 500 kV output pulses and 50 Hz repetition rate in burst-mode successfully. The peak output pulse voltage of this generator is approximately the same as that of the highest power solid-state Marx generator ever reported, while the peak current is almost twice, reaching 1 000 A. The maximum pulsed power of the generator is as high as 500 MW. As the capacitors were utilized as energy storage components, the pulse width can be adjusted from 3 s to 10 s continuously.

Modelling of a spark gap switch

Abstract: High voltage Marx generator along with a high pressure spark gap switch is a key component in systems that generate high power microwaves. This paper presents modelling and analysis of high pressure spark gap switch. In this paper, the three-dimensional static and dynamic electromagnetic spark gap model is simulated using computer simulation technology (CST) electromagnetic studio and microwave studio. The resistance and inductance model of the switch is developed and analysed to study the peak voltage of the output pulse generated by the switch for gases under different pressure.

Energy recovery and power stabilization of pulsed electron beams in Marx generator circuits

Abstract: A possibility of increasing the electron beam pulse duration and current in accelerators fed from the capacitive storage systems with the electron-beam energy recovery is described. A simple scheme for correction of the pulse shape of the generator voltage allows keeping in a quasi-constant level of the voltage on the acceleration tube for the pulse time, thus stabilizing the beam parameters: energy, current, and power. The experimental results are given.

Design and test of a modular trigger generator for over-voltage triggering of Marx generators

Abstract: Over-voltage triggering of a spark gap enables a synchronized operation of several Marx generators in repetitive operation without an increased wear of the electrodes. The trigger pulses are generated by means of a pulse generator consisting of several stacked stages, which are equipped with IGBTs as opening switches. A pulse transformer serves as intermediate energy storage. It replaces one charging coil between the first and second stage of the Marx generator and couples the trigger pulses into the Marx circuit causing an over-voltage across the 1st stage's spark gap. The number of stages of the trigger generator can be varied in order to adapt the trigger generator to different Marx generator designs with varying stray capacitance and breakdown voltage of the spark gap. The paper describes the design of the trigger generator and presents the results of tests.

Full-automatic intelligent strong fast rising electromagnetic pulse generator

Abstract: The utility model relates to a full-automatic intelligent strong fast rising electromagnetic pulse generator, comprising an electromagnetic pulse generator, a on-site monitor, a remote control terminal and an intelligent controller connected orderly. The output end of the intelligent controller is connected with the input end of the electromagnetic pulse generator, the electromagnetic pulse generator is used to generate a fast rising electromagnetic pulse strong field, and the on-site monitor is used to monitor the statuses of tested objects, the electromagnetic pulse generator and the intelligent controller; the remote control terminal is used to send test parameters and program control trigger instructions distantly, the intelligent controller is used to receive remote control terminal data and make the electromagnetic pulse generator act according to the instructions, and the electromagnetic pulse generator comprises an MARX generator, a gas distribution unit and a peaking circuit. By using the full-automatic intelligent strong fast rising electromagnetic pulse generator of the utility model, the time-consuming, labor-consuming and low efficiency technical problems are solved, the test processes are simplified, the test time is shortened, the artificial test errors are reduced, and the test efficiency is improved.

Modelling and Analysis of High Pressure Peaking Switch

Abstract: This paper presents modelling and analysis of peaking switch used in Marx generator, such that the rise time of the pulse produced by the Marx generator is reduced substantially. Towards this FEMM (Finite Element Methods Magnetics) software is used for the field modelling of the switch and MATLAB for circuit modelling to observe the rise time. The switch has to produce pulse with sub-nanosecond rise time, hence the electrode distance has to be minimum. This switch can withstand high voltage only under high pressure. A mathematical model is simulated in MATLAB to see the performance under high pressure.

Design of 500 kV Solid-state Marx Generator IGBT Driver Voltage Multi-channel Insulated Power Supply

Abstract: We designed a multi-channel insulated power supply system in order to satisfy the power requirements of IGBT driver in solid-state Marx generator,and analyzed and experimentally tested requirements of IGBT driversMoreover,we proposed power supply design,in which power conversion adopted DC-AC-DC conversion,and the cascade transformer and one-turn of the transformer primary were usedThe design method was verified to be feasibleMeanwhile,the special work mode of float power supply and key technology was illuminated,and the experimental results were discussedThe results illustrate that the power stability and isolated power supply meet the requirements and have a good prospect

All-solid magnetron modulator

Abstract: The utility model discloses an all-solid magnetron modulator which comprises a resonant direct current power source and a Marx generator connected with the resonant direct current power source in series. The utility model solves the disadvantages of complex circuitry, poor output voltage waveform, limited service life, poor universality and large size of a conventional modulator. The all-solid magnetron modulator adopts the parallel resonant direct current power source with constant current and the Marx generator, and a capacitor of the Marx generator charges in parallel and discharges in series; the direct current power source works constantly; and high voltage pulse output can be realized by controlling the capacitor of the Marx generator to discharge in series. The all-solid magnetron modulator is mainly used in the field of magnetron modulators in radar transmitters.

Intelligent pulse type wireless electric energy transmission device

Abstract: The invention discloses an intelligent pulse type wireless electric energy transmission device, which belongs to a novel application of a wireless electric energy transmission technology and is widely applied to the fields of aerospace, traffic, military and communication. The intelligent pulse type wireless electric energy transmission device mainly comprises a short-time high-power pulse generating circuit, a laser signal control circuit and a pulse trigger circuit, wherein a Marx generator principle is adopted in the short-time high-power pulse generating circuit and a high-power capacity matrix with a spark discharge clearance is used for realizing the short-time high-power pulse generating circuit; the laser signal control circuit is provided with an induction antenna, a single chip microcomputer and a control output; the induction antenna is used for receiving an electromagnetic wave signal of the short-time high-power pulse generating circuit; the single chip microcomputer is connected with the induction antenna; the control output is connected with the single chip microcomputer; and the pulse trigger circuit is composed of a KM1 relay, a power transistor Q1 and a line output transformer T. The control of the single chip microcomputer over the discharging under the influence of a strong electromagnetic pulse is realized by the intelligent pulse type wireless electric energy transmission device. After the pulse energy is generated, the pulse energy is loaded onto an emitting coil, and the energy is transmitted to a receiving coil within a short period of time according to an electromagnetic coupling resonance principle, so that the wireless transmission of energy is realized.

An efficient all solid-state pulsed generator for pulsed discharges

Abstract: In this paper, a high-efficiency all solid-state nanosecond pulsed generator for dielectric barrier discharge (DBD) is designed, consisting of a Marx generator, Blumlein transmission lines and one magnetic switch (MS). Blumlein transmission lines are charged by Marx generator and discharge into the load after MS turns on. For comparisons, experiments were carried out with three loads including matched resistor, air gap and DBD load. Experimental results have been given. This generator is capable of providing pulses with voltage up to 20 kV and duration of 220 ns on the matched load of a 100 ohm resistor at the efficiency of 90.8%. With the air gap load, current presents bipolar square-wave attenuation oscillation with duration of 220 ns. Special emphasis is given to the DBD load. It is found that there are over ten discharges in 4 microseconds under a single-shot condition. Theoretic analysis illustrates the high efficiency of this generator and great potential value for industrial applications.

Method and device for receiving and emitting high-power microwave pulse

Abstract: FIELD: electricity. ^ SUBSTANCE: capacitor bank (12-12) of Marx generator (11) is used irrespective of microwave generator and antenna, immediately as resonator and Hertz antenna dipole (24). Its oscillation response can be optimised by means of starting-up spark gaps (14) for changing over capacitors (12), and by means of plates (18) connected along the edges in order to increase parasitic capacitances. ^ EFFECT: decreasing dimensions of the device. ^ 6 cl, 1 dwg

High-voltage pulse power supply used for algae removal in water

Abstract: The utility model relates to a high-voltage pulse power supply, in particular to a high-voltage pulse power supply used for algae removal in water. The high-voltage pulse power supply comprises an alternating current power supply, a rectification circuit, a Marx generator and a magnetic pulse compression circuit which are sequentially and electrically connected. The high-voltage pulse power supply is mainly used for solving the technical problem that the pulse front edge is greatly influenced by a switch when an existing power supply device is used; and the high-voltage pulse power supply has the advantages of low cost, controllable pulse energy, stability in operation, and the like.

Intelligent pulse type wireless power transmission device

Abstract: The utility model discloses an intelligent pulse type wireless power transmission device, and is a novel utility model which belongs to the technology of wireless power transmission. The intelligent pulse type wireless power transmission device can be widely used in the fields of aerospace, transportation, military and communication. The intelligent pulse type wireless power transmission device mainly comprises a short-time high-power pulse generating circuit, a laser signal control circuit and a pulse trigger circuit. The power pulse generating circuit employs a Marx generator principle, and is realized with a high-power capacitance matrix with spark discharge gaps. The laser signal control circuit comprises an induction antenna for receiving an electromagnetic wave signal of the pulse generating circuit, a microcontroller connected with the induction antenna and a control output connected with the microcontroller. The pulse trigger circuit comprises a KM1 relay, a power transistor Q1 and a line output transformer T. According to the utility model, the microcontroller under the influence of strong electromagnetic pulse controls discharging. Generated pulse power is loaded into a transmitting coil, and is transmitted to a receiving coil through an electromagnetic coupling resonance principle in a short period of time, thus the power wireless transmission is realized.