650 results about "High voltage pulse" patented technology

The invention provides a cable fault detection method based on an intelligent cable fault test device and a test device, and the method comprises the steps: synchronously connecting a fault cable and an adjacent healthy cable through a cable fault tester, and enabling the fault cable to be connected with the adjacent healthy cable when a high-voltage pulse is applied; and synchronously capturing an active reflection signal of the fault cable and a passive coupling induction signal of the healthy cable. Through cross-cable signal feature comparison, a real fault signal is accurately identified, a roughly measured fault distance is calculated according to the real fault signal, and fuzziness of traditional waveform interpretation is overcome. According to the spectrum characteristics of the real fault signal, the optimal filtering parameter is adaptively configured for the acoustic-magnetic synchronous positioning instrument, and the signal-to-noise ratio of the accurate fixed point is improved. And accurate point positioning is carried out near the rough measurement distance, and secondary verification is carried out at the corresponding position of the healthy cable, so that closed-loop positioning of the fault is completed in a mode of confirming that no sound magnetic signal exists. According to the invention, accurate extraction and positioning guidance of fault features are realized, and the accuracy and efficiency of cable fault detection are greatly improved.

The utility model provides a high-voltage pulse generating device and a test system. The high-voltage pulse generating device comprises a main control unit, a driving circuit, a pulse control circuit with a wide bandgap semiconductor power device, and an output circuit, the first end of the main control unit is coupled with the first end of the driving circuit, the second end of the driving circuit is coupled with the first end of the pulse control circuit, and the second end of the pulse control circuit is coupled with the output circuit; the main control unit is configured to generate two paths of first PWM (Pulse Width Modulation) signals with dead time control; the two paths of first PWM signals are sent to the driving circuit; and the driving circuit is configured to process the first PWM signal and then drive the pulse control circuit, so that the output circuit generates a high-voltage pulse signal. According to the utility model, the structure is simple, the cost can be greatly reduced, the output pulse speed can be flexibly set, and the CMTI test requirements of different isolated gate drivers can be met.

The invention relates to an intelligent high-voltage pulse electrical stimulation system and a control method, and solves the problems of poor individual suitability, low positioning precision and weak safety in the prior art. The system obtains body surface point cloud through a split scanning module (infrared / TOF), and dynamic mapping of an anatomical structure is achieved in combination with a medical image template library (the error is smaller than 1.2 mm); dynamically adjusting a high-voltage pulse (0-1200V) based on a BMI-impedance model, and adopting an improved KNN algorithm to match a discharge scheme; three-level safety protection is innovated, and dangerous area protection is achieved through impedance sudden change detection, displacement compensation and phase counteracting (electric field attenuation is larger than 99.9%). Clinical verifications show that the positioning precision is + / -0.5 mm, the pain relief rate of obese patients (BMI = 32) is 92%, and the false touch rate is less than 0.01%. Accurate targeting and safe regulation and control are achieved, and the method is suitable for the fields of muscle rehabilitation, pain management and the like.

Apparatuses, systems and methods are provided for treating pulmonary tissues via delivery of energy, generally characterized by high voltage pulses, to target tissue using a pulmonary tissue modification system (e.g., an energy delivery catheter system). Example pulmonary tissues include, without limitation, those within the respiratory tract, particularly the epithelium (the goblet cells, ciliated pseudostratified columnar epithelial cells, and basal cells), lamina propria, submucosa, submucosal glands, basement membrane, smooth muscle, cartilage, nerves, pathogens resident near or within the tissue, or a combination of any of these. The systems may be used to treat pathogens, such as bacteria and viruses, particularly coronaviruses.

A system for treatment of patient tissue by delivery of high-voltage pulses comprising an ablation catheter, a measurement unit and an electronic control unit (ECU). The measurement unit is configured to perform measurements using an energy source, whereby the impedance and / or current measurement values are determined as response to an alternating voltage and / or at least one voltage pulse. The ECU is configured to receive and analyze said measurement values provided by the measurement unit and identify a presence of hemolysis based on a determined decrease in the measured impedance values over time.

A pulse generator is disclosed. The pulse generator includes a DC source; a plurality of switches, a transformer; and a pulsing output. The pulse generator can be coupled with a plasma chamber. The pulsing output outputs high voltage pulses having a peak-to-peak voltage greater than 1 kV and a voltage portion between consecutive high voltage bipolar pulses that has a negative slope that substantially offsets the voltage reduction on a wafer within a plasma chamber due to an ion current. The resulting voltage at the wafer may be substantially flat between consecutive pulses.

The utility model belongs to the field of cable detection, and particularly relates to a calibration device of cable detection equipment, which comprises a shell, a voltage verification high-voltage input end is fixedly embedded in a position, close to the upper left corner, of the front side of the shell, and a voltage verification high-voltage ground input end is fixedly embedded in a position, close to the lower left corner, of the front side of the shell; the device can simulate an open circuit, a broken line, a high-resistance fault, a low-resistance fault, a flashover fault and the like. And functions, performance, technical indexes and the like of a cable fault flash tester, a high-voltage bridge, a high-voltage pulse generator and a high-voltage unit are calibrated and inspected. The device can also be used for training the measurement and judgment of a power cable fault, a main insulation fault and an outer sheath fault, a top plate is pressed downwards, an inclined surface of a clamping block extrudes the top of a shell, the clamping block automatically shrinks inwards, and after the top plate slides to a proper position on the inner wall of the shell, the clamping block is automatically clamped in a clamping groove under the support of a spring, so that the clamping block is fixed. The device can be conveniently disassembled and assembled, and the maintenance efficiency of use is improved.

The invention discloses a silicon carbide MOSFET parallel current sharing system and method for a pulse power supply, and belongs to the technical field of SiC MOSFET parallel current sharing, the system comprises a main power circuit connected with a plurality of SiC MOSFETs in parallel and an active driving circuit, when the SiC MOSFETs are turned on, a source inductor generates an induced voltage in direct proportion to the current rising rate, and when the SiC MOSFETs are turned on, the active driving circuit drives the main power circuit to rotate; current sharing when a plurality of SiC MOSFETs are connected in parallel is realized through an in-phase amplification circuit used for detecting and amplifying an induced voltage, a differential amplification circuit used for detecting and comparing an induced voltage value, and a proportional current source circuit is controlled to extract a SiC MOSFET gate drive current. By adopting the method, the unbalanced current can be suppressed, the balance of the current flowing through each branch of the parallel SiC MOSFETs is ensured, the SiC MOSFET device in the high-voltage pulse power supply is effectively protected, and the working reliability of the circuit is improved.

The invention discloses a high-voltage positive and negative pulse detection circuit, which relates to the technical field of signal conditioning, and is characterized in that a voltage division circuit is responsible for attenuating input pulse signals, a switching diode is responsible for rectification and inputting positive and negative pulse signals into corresponding conditioning circuits respectively, and a charging circuit is responsible for maintaining pulse width characteristics of the signals; and the steepness of the signal edge is ensured by the comparator, and FPGA identification can be realized. Uncertain high-voltage pulse signals can be processed, and application scenes are diversified. The edge characteristic, pulse width and pulse direction of the pulse signal can be identified, and the signal processing capability is prominent.

The low-frequency electromagnetic wave has the characteristics of high penetrability and low signal attenuation, and can be widely applied to the fields of underground communication, underwater communication and the like. Most existing low-frequency transmitting antennas are electrically small antennas, have the problems of large size, complex equipment, short transmission distance and the like, and are difficult to meet actual requirements. The invention relates to a high-power pulse low-frequency antenna based on a Tesla coil. The high-power pulse low-frequency antenna is a high-power pulse transmitting antenna composed of a solid-state double-resonance Tesla circuit, a transformer, a primary coil and a secondary coil. The antenna adopts a high-voltage pulse generated by a Tesla circuit for feeding, and meanwhile, a transformer type impedance matching network is combined, so that the feed power is maximized. The radiation coil selects a primary and secondary nested coupling structure, the working frequency is accurately adjusted to be the output frequency of the Tesla circuit by respectively connecting resonant capacitors in series to the primary and secondary coils, and effective amplification of radiation signals is realized based on a magnetic coupling effect. The size of the coil is in the sub-cubic meter level and is within one thousandth of the working wavelength. Aiming at the antenna design difficulty in long-wave communication, the antenna has the advantages of high input power, long-distance transmission and small physical size, and has potential application value in the fields of cross-medium communication, emergency management communication and the like.

A pulse generator is disclosed. The pulse generator includes a DC source; a plurality of switches, a transformer; and a pulsing output. The pulse generator can be coupled with a plasma chamber. The pulsing output outputs high voltage pulses having a peak-to-peak voltage greater than 1 kV and a voltage portion between consecutive high voltage bipolar pulses that has a negative slope that substantially offsets the voltage reduction on a wafer within a plasma chamber due to an ion current. The resulting voltage at the wafer may be substantially flat between consecutive pulses.

The invention discloses a method and a device for calibrating an ultrasonic time rod. The device comprises a pulse generating / receiving device, a first ultrasonic transducer, a second ultrasonic transducer and a display module, the pulse generating / receiving device works in a one-transmitting and one-receiving mode, the pulse generating / receiving device is used for generating high-voltage pulses, the transmitting / receiving end of the pulse generating / receiving device is connected with the first ultrasonic transducer, and the second ultrasonic transducer is connected with the display module. The first ultrasonic transducer is used for exciting ultrasonic signals, the receiving end of the pulse generator / receiver is connected with the second ultrasonic transducer, the second ultrasonic transducer is used for receiving ultrasonic signals, and the radio frequency output end of the pulse generator / receiver is connected with the input end of the display module. And when the pulse generator / receiver works in a self-transmitting and self-receiving mode, the transmitting / receiving end of the pulse generator / receiver is connected with the third ultrasonic transducer. According to the device, the sound time value of the ultrasonic sound time rod can be measured, and the ultrasonic sound time rod is calibrated based on the error.

The invention provides a bulk metal ore grade online analysis method based on high-voltage pulse discharge breakdown spectroscopy, which comprises the following steps: (a) placing bulk metal ore particles in a high-voltage discharge electrode system filled with a liquid insulating medium, and applying 30-250kV voltage through a high-voltage electric pulse generator to carry out pulse discharge, carrying out electric breakdown on the ore particles and generating plasmas; (b) synchronously acquiring a plasma characteristic spectrum signal and a voltage waveform signal and a current waveform signal of pulse discharge in the electric breakdown process; (c) preprocessing the characteristic spectral signal, determining element types according to the wavelength of a characteristic spectral line, and extracting the intensity of the characteristic spectral line; and (d) inputting the characteristic spectral line intensity, the pulse discharge waveform parameter, the discharge condition and the ore particle property into a pre-established quantitative analysis model, and outputting the metal element grade of the ore particles.

The application discloses a kind of continuous high-voltage pulse electric field processing berry functional active ingredient reinforced extraction method.The method comprises the following steps: after the cooling device is cooled to reach the set temperature by the processing chamber device, set high-voltage pulse power output parameter, high-voltage pulse power generates bipolar symmetric square wave, set pulse electric field parameter, the distance of two titanium alloy electrodes is 100mm, the pretreated berry material is transported to the processing chamber body, and the high-voltage pulse electric field processing is carried out on the berry material, to obtain the berry extract containing active ingredient.The method proposed in the application uses continuous round square corrosion-resistant pulse electric field processing chamber, the overall structure is convenient to assemble and process, the processing chamber can be increased according to actual needs, and synchronous cooling can be realized at the same time, the low-temperature extraction and active protection of functional active ingredient are realized while the electrode is protected.

According to the LC-Marx topology-based asynchronous time sequence multi-frequency-multiplication superposed high-voltage pulse generation device provided by the invention, the positive electrode of a diode D3n-2 is connected to the output end of a main control switch Smain, the negative electrode of the diode D3n-2 is connected to one end of an inductor Ln, the other end of the inductor Ln is connected to the drain electrode of an NMOS tube Q1, the source electrode of the NMOS tube Q1 is connected to one end of a capacitor C2n-1, and the other end of the capacitor C2n-1 is connected to the output end of the main control switch Smain. The other end of the capacitor C2n-1 is connected to one end of the capacitor C2n, the other end of the capacitor C2n is connected with the positive electrode of the diode D3N, the negative electrode of the diode D3n is connected to the positive electrode of the diode D3n-1, and the negative electrode of the diode D3n-1 is connected to a common connection point between the capacitor C2N-1 and the source electrode of the NMOS tube Qn. A common connection point between the capacitor C2n-1 and the capacitor C2n and a negative electrode of the diode D3n are connected with a common connection point between the inductor Ln and a negative electrode of the diode D3n-2, a positive electrode of the diode D3n serves as a positive electrode cascade point of the pulse generation unit, and a negative electrode of the diode D3n-1 serves as a negative electrode cascade point of the pulse generation unit. And the grid electrode of the NMOS tube Qn is connected to the output end of the time sequence control unit.

The invention discloses a single-stage AC-DC converter for a high-voltage pulse power supply and a modulation control method of the single-stage AC-DC converter, the single-stage AC-DC converter comprises an interleaved Boost circuit and a DC-DC converter, the primary side of a transformer in the DC-DC converter and the interleaved Boost circuit multiplex bridge arms of an AC full-bridge circuit, the secondary side of the transformer is connected with a clamping diode half-bridge three-level circuit, and the clamping diode half-bridge three-level circuit is connected with the DC-DC converter. The clamping diode half-bridge three-level circuit is connected in parallel with a voltage stabilizing capacitor; according to the interleaving Boost circuit adopted by the primary side, a two-stage medium-direct-current bus high-capacity electrolytic capacitor is canceled and replaced by a smaller filtering thin-film capacitor, so that the size of the converter is greatly reduced, and the power density of the converter is improved; and the secondary side adopts a clamping diode half-bridge three-level circuit structure, so that the voltage stress borne by the switching device is greatly reduced, and the switching device is more suitable for high-voltage and high-power occasions.

The invention discloses a PMUT array ultrasonic transceiver circuit system, and relates to the technical field of electronic circuits and systems, and the system comprises a GPU processing module, an FPGA main control module and an ultrasonic analog circuit. The GPU processing module generates an optimal array element gating matrix by using an array element gating matrix generation model; the FPGA main control module drives the ultrasonic analog circuit to perform time-sharing gating on the transmitting array element and the receiving array element according to the optimal array element gating matrix; performing phase control excitation on the transmitting array element when the transmitting array element is gated; performing beam forming on the processed ultrasonic echo signal when the receiving array element is gated; the ultrasonic analog circuit performs time-sharing gating on the transmitting array element and the receiving array element, and generates a high-voltage pulse when the transmitting array element is gated; ultrasonic echo signals are collected and processed when the receiving array elements are gated; and the GPU processing module performs three-dimensional image reconstruction according to the synthesized ultrasonic echo signal to obtain a three-dimensional ultrasonic image. According to the invention, the imaging speed and resolution are improved.

The invention discloses a particulate matter resistance detection system based on high-voltage pulse self-cleaning and a control method, and relates to the technical field of diesel vehicle emission post-processing. A connecting wire harness comprises a high-voltage heat-resistant wire harness and a signal shielding wire which are respectively used for transmitting a high-voltage pulse signal, a resistance detection signal and a temperature acquisition signal; the sensor probe is connected with the controller module; the Baud rate of the CAN communication interface is 500 kbps, the CAN communication interface supports a UDS diagnosis protocol, can be connected into an OBD-II system and is used for transmitting a detection result to a whole vehicle ECU, and the control method comprises the processes of instantaneous high-voltage pulse cleaning, bias voltage adsorption, dynamic resistance monitoring, temperature compensation and result output. According to the invention, the cleaning time is less than 1 second, the single detection period is less than or equal to 60 seconds, the service life of the sensor is prolonged to more than 5 years, the energy consumption is less than or equal to 1.8 W, the distance between electrodes reaches 10-50 microns, and the temperature detection deviation is + / -0.2 DEG C, so that the requirement on real-time monitoring of a diesel particulate filter (DPF) in national sixth and above emission standards can be met.

The invention discloses a vehicle-mounted air conditioning refrigeration house, an air conditioning method and a control system. The vehicle-mounted air conditioning refrigeration house comprises an air curtain pressure difference refrigeration system, and the air outlet end and the air return end of the air curtain pressure difference refrigeration system are arranged on the two sides in the house body so that air curtain pressure difference refrigeration of different modes can be conducted in the house body at different air conditioning stages. The air conditioning system is communicated with the interior of the warehouse body to carry out air conditioning treatment on the interior of the warehouse body; the high-voltage pulse electric field is communicated with the air conditioning system and the interior of the warehouse body so as to sterilize and deodorize gas in the warehouse body; the storage battery is arranged on the outer side of the refrigeration house body to supply power to the air-conditioning refrigeration house power utilization system; the sensor is arranged in the library body and is used for monitoring the environment in the library body and outputting detection data to the gas regulation control system; the gas regulation control system is used for controlling the refrigeration mode of the air curtain differential pressure refrigeration system and the starting of the gas regulation system and the high-voltage pulse electric field according to the detection data; the pre-cooling speed is high, the speed of constructing a modified atmosphere environment is high, and sterilization dead corners and storage tainting of odor do not exist.

A heavy medium pre-separation efficient fixed separating screen comprises a control assembly, a magnetic separation and flow guide integrated assembly and a supporting frame and is characterized in that a cavity with an opening in the upper end is formed in a frame body of the supporting frame, a fixing plate is fixed to a ground fixing piece through bolts, and the control assembly is of an integrated structure and can control the magnetic separation and flow guide integrated assembly according to real-time data of materials. A flow guide groove of the magnetic separation and flow guide integrated assembly is of a downwards-inclined trapezoidal structure with the front portion wide and the rear portion narrow, a magnetic separation roller is arranged above the flow guide groove, a medium recycling groove is formed below the magnetic separation roller, and a U-shaped scraper is arranged in a discharging area of the magnetic separation roller. A sieve plate I and a sieve plate II which are respectively supported by a sieve frame I and a sieve frame II and incline downwards are arranged in the cavity, the upper layer is provided with slot-shaped sieve holes, and the lower layer is provided with circular sieve holes, so that the problems that an integrated control assembly, a magnetic separation and flow guide integrated assembly, a high-voltage pulse cleaning assembly and the like cannot be used are effectively solved.

The invention discloses a modularized low-temperature plasma logistics fresh-keeping device and method, and the device comprises at least one low-temperature plasma discharge module which comprises an insulating fixed frame, and a metal mesh electrode and at least one point discharge electrode which are fixed on the insulating fixed frame, the point discharge electrode is provided with a cylindrical side wall, the axis of the point discharge electrode is perpendicular to the metal mesh electrode, a plurality of conductive points are uniformly distributed at the end, facing the metal mesh electrode, of the cylindrical side wall, and a certain distance is reserved between the conductive points and the metal mesh electrode; the pulse direct-current high-voltage module is used for outputting high-voltage pulses to the low-temperature plasma discharge module; the infinite loop on-off module is used for periodically controlling on-off of the pulse direct-current high-voltage module; and the low-voltage direct-current power supply provides low-voltage direct current for the pulse direct-current high-voltage module and the infinite loop on-off module. The fresh-keeping device adopts a discharge mode which is simple in structure, high in energy density and easy to modularly integrate, and can be integrated in a logistics transportation system for fresh keeping of fruits and vegetables.

This invention discloses a modular essential oil pulse atomizing core and its corresponding essential oil diffuser, belonging to the field of diffuser equipment. It aims to solve the problems of existing essential oil diffusers, such as limited atomization modes, rapid particle settling, easy clogging of pipes, easy deterioration of essential oils, and high maintenance costs and difficulty in adapting to essential oils of different viscosities due to the integrated packaging of the atomizing core. The atomizing core integrates a high-voltage pulse electrode group and an ultrasonic atomizing component to form a multi-stage atomization module, with an essential oil storage section and an essential oil supply section. It adopts a modular, pluggable structure and is equipped with a magnetic power supply interface component. The accompanying diffuser includes an exhaust duct, exhaust fan, control circuit board, and sensor module, which can intelligently adjust the atomization state according to environmental parameters. This invention can generate fine and uniform atomized particles at room temperature, is compatible with multiple types of essential oils, eliminates the risk of clogging and essential oil deterioration at the source, and the modular pluggable design significantly reduces maintenance difficulty and cost, making it suitable for various indoor diffuser scenarios.

The invention provides a DC-DC converter based on triple BOOST and a control method, and the DC-DC converter is characterized in that the output end of an EMI filter is connected to the input end of a pre-charging module, the output end of the pre-charging module is connected to a triple BOOST main topology module, and the triple BOOST main topology module is connected with a DSP controller; the EMI filter is used for inhibiting overflow of disturbance voltage and disturbance current of the DC-DC converter and preventing external surges and high-voltage pulses from entering the DC-DC converter; the pre-charging module is used for realizing pre-charging of the DC-DC converter; the triple BOOST main topology module is used for improving the current limitation of the input end and reducing the input end current of each BOOST circuit in the triple BOOST main topology module; and the DSP controller is used for controlling the triple BOOST main topology module. And stable operation of the non-isolated DC-DC converter in high-power wide-range input voltage is realized.

The invention provides a high-voltage pulse generator based on a signal trailing suppression design, which is characterized by comprising n stages of Marx booster circuits which have the same structure and are connected in sequence, and n is an integer and is greater than or equal to 2; the ith Marx booster circuit comprises a charging current-limiting resistor Ri, a capacitor Ci, a field effect transistor MOSFETi and an ith discharging circuit, and i = 1,..., n; the ith discharge circuit comprises two parallel discharge circuits; the first discharge circuit in the two parallel discharge circuits comprises a discharge current limiting resistor Ri + n and a field effect transistor MOSFETi + n; the second discharging circuit in the two parallel discharging circuits comprises a discharging current-limiting resistor Ri + 2n and a field effect transistor MOSFET (Metal Oxide Semiconductor Field Effect Transistor) i + 2n; and the discharge current-limiting resistor Ri + n and the discharge current-limiting resistor Ri + 2n have different resistance values. According to the high-voltage pulse generator provided by the invention, rapid discharge can be realized by controlling the on-off of the field effect transistor MOSFET, the falling edge is further shortened, and high-voltage pulses with narrower pulse width are generated while the type selection limitation on resistors and switching devices is reduced.

The invention provides an extraction method of coconut globulin, and relates to the technical field of coconut protein extraction. The method for extracting the coconut globulin comprises the following steps: removing albumin from defatted coconut powder by using distilled water, performing nitrogen pressure-boosting drying, mixing with a NaCl solution with relatively low concentration, performing high-voltage pulse electric field circulation treatment, stirring and extracting the NaCl solution, freeze-drying, redissolving, dialyzing and purifying to obtain the coconut globulin. According to the method, the defects in the prior art are overcome, and the extraction rate of the coconut globulin and the purity of the final product are improved while the good stability and emulsibility of the coconut globulin are ensured.

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 device for noninvasive regulation and control of a blood brain barrier in a non-invasive pulsed electric field. The device comprises a high-voltage pulse generator, a plurality of treatment electrodes and a fixing device. The connection tightness of endothelial cells is adjusted through a high-voltage short-pulse electric field, local regulation and control of the brain area are achieved in combination with electrode design, pulse parameters are flexibly adjusted to balance the effect and damage, and a new non-invasive physical treatment means is provided for assisting drug cross-blood-brain-barrier delivery. Compared with focused ultrasound, the multi-mechanism synergistic effect (electroporation effect and bioelectrochemical effect) is utilized instead of depending on the mechanical effect of exogenous microbubbles, so that the safety risk is remarkably reduced. The system has the advantages of noninvasiveness, safety and space flexibility, and can be opened for a long time. The non-invasive electrode is used for delivering instantaneous high-voltage electric pulses, which is different from conventional low-voltage long-time electric stimulation.

The present invention provides a high-voltage pulse generating circuit and a high-voltage pulse generator, comprising: a pulse processing circuit connected to a first-stage push-pull circuit for generating complementary square wave pulses; a floating voltage boosting circuit connected to the first-stage push-pull circuit and the second-stage push-pull circuit, respectively, for powering the second-stage push-pull circuit; the first-stage push-pull circuit and the second-stage push-pull circuit, respectively, for generating a high-voltage drive pulse driven by the square wave pulse; and the second-stage push-pull circuit, driven by the high-voltage drive pulse and powered by the floating voltage boosting circuit, for generating a target high-voltage pulse to control the switching state of a high-voltage control device. In the present invention, a floating voltage boosting circuit is used to continuously power the second-stage push-pull circuit, i.e., the drive voltage of the second-stage push-pull circuit can be suspended, thereby achieving a continuous high-voltage output with a 100% duty cycle.

The application provides a rock square operation area mining device and method based on high-voltage pulse discharge, relates to the rock breaking technical field, and comprises a first electrode and four second electrodes, wherein the four second electrodes are uniformly distributed around the first electrode; the first electrode comprises a first fixed column, a first extension column is arranged on the side of the first fixed column every 90 degrees, and the tail end of the first extension column is connected with a first telescopic column; the side of the second fixed column is connected with two second extension columns and a third extension column, the tail end of the second electrode extension column is connected with a second telescopic column, the tail end of the third electrode extension column is connected with a third telescopic column, and the third telescopic column is telescopic along the direction of the third electrode extension column. The application provides a rock square operation area mining device based on high-voltage pulse discharge, simplifies the structure of the pulse discharge device, reduces the equipment cost, and improves the equipment reliability.

The utility model belongs to the technical field of high-voltage test equipment, and particularly relates to a high-capacity high-voltage pulse direct-current generator, which comprises a power supply, the power supply is connected with the input side of a voltage regulator through a disconnecting link and a fuse, and the output side of the voltage regulator is connected with the low-voltage side of a boosting transformer. A live wire port of the high-voltage side of the boosting transformer is connected with an anode of the high-voltage rectification silicon stack, a cathode of the high-voltage rectification silicon stack is connected with an anode of the discharge gap ball, a cathode of the discharge gap ball is connected with an anode of a tested device, and a cathode of the tested device is connected with a null line port of the high-voltage side of the boosting transformer. A high-voltage capacitor is connected in parallel between the positive electrode of the discharge gap ball and the negative electrode of the tested equipment, and the high-capacity capacitor unit is formed by connecting two capacitors in parallel, so that compared with the direct purchase of a high-capacity capacitor, not only is the equipment cost reduced, but also the capacity of the capacitor is remarkably improved.