193 results about "High voltage source" patented technology

The utility model relates to textile setting machine tail gas treatment technical field, and disclose a kind of tail gas treatment equipment of textile setting machine, including filter box, the inside of the filter box is equipped with two chute, the inside sliding connection of chute has first filter mechanism.The tail gas treatment equipment of textile setting machine, by the setting of first filter mechanism and second filter mechanism, when carrying out pretreatment to tail gas, tail gas first enters filter box interior and carries out first filtration, by filter screen and activated carbon layer in filter box, impurity in tail gas is filtered and adsorbed, then part of small impurities will be transported to the processing box of side by pipeline, the high voltage power supply of both sides on the surface of processing box is started, high voltage power supply makes the electrostatic precipitator plate of side produce electric field, and the small impurities of surrounding electrification are adsorbed on its surface, to realize the effect of depth treatment to tail gas, improve the quality of tail gas treatment, avoid impurity to cause blockage and damage to subsequent processing equipment.

The application discloses a kind of plasma jet array devices for large size epoxy surface modification, including frame, tank, gas cylinder for loading inert gas, aperture network, high voltage power supply and metal insert;Tank and metal insert are fixed on frame, tank is flat tank and its slot is formed with jet airway for placing and fixing epoxy insulation, the bottom and side of tank are provided with jet spout arranged in array, jet spout is connected by gas inlet pipe, gas inlet pipe is arranged in the inside of side plate and bottom plate of tank;Aperture network is connected on jet spout and connects high voltage power supply, tank is grounded by wire;Metal insert is inserted above epoxy insulation, metal insert is grounded by wire.The application also discloses the use method applied to the above device.Adopting the application, the surface of large size epoxy insulation can be quickly and uniformly modified, and the charge release capacity is improved.

This invention relates to the field of integrated circuit I / O interface design technology. It discloses a dual-mode (digital-analog) input / output interface circuit based on low-voltage devices adapting to high-voltage power supplies, aiming to solve the problems of low-voltage process chips being unable to directly adapt to high-voltage power supplies and limited I / O functionality. The interface circuit includes a digital output module, a digital input module, an analog I / O module, and a mode summary and ESD circuit. Through external configuration signals, the circuit can switch between digital input, digital output, analog I / O, and power-down modes. The digital output module incorporates a dual-mode high-voltage adaptation mechanism, utilizing a voltage divider resistor series and a common-gate protection transistor to ensure the safety of low-voltage devices under high voltage. The digital input module employs non-overlapping control to eliminate dynamic power consumption. A full-mode high-impedance isolation design ensures the reliability of mode switching. This invention achieves safe adaptation of standard low-voltage CMOS devices to high-voltage power supplies and integrates dual-mode functionality, offering advantages such as high integration, low power consumption, high reliability, and strong process compatibility.

This invention belongs to the field of ultra-high vacuum ion pumps, specifically a portable high-voltage power supply device and implementation method suitable for a novel ultra-high vacuum ion pump. The device includes: a portable power supply unit, a master control switch unit, a DC-DC converter unit, a high-voltage output unit, a voltage / current processing unit, and a portable high-voltage power supply housing unit. The portable power supply unit supplies power to the entire portable high-voltage power supply device; the master control switch unit controls the start and stop of the high-voltage power output; the DC-DC converter unit boosts the input voltage to provide power for the ion pump; the high-voltage output unit delivers the high-voltage power to the ion pump via a high-voltage cable, ensuring stable operation; the voltage processing unit displays the current voltage / current parameters output by the ion pump; and the portable high-voltage power supply housing unit is used for installation, operation, and fixation of the device.

The present application relates to a kind of based on distributed model predictive control's electric precipitator cluster energy-saving optimization operation control method and control system, based on electric precipitator cluster establishment distributed linear dynamic model, describe the dynamic response relationship between the dust concentration in each electric chamber in electric precipitator cluster and high voltage power supply secondary voltage;According to the outlet concentration information of electric precipitator cluster, design state observer, estimate the dust concentration in each electric chamber;Based on the estimated state of distributed linear dynamic model and state observer, design the controller based on distributed model predictive control, obtain optimal control strategy;Based on method implementation control system.The present application is convenient for control implementation, get rid of the dependence on historical data;Real-time estimation of unobservable electric chamber dust concentration can be implemented in electric precipitator cluster engineering application;Method ensures accurate regulation for each electric chamber, realizes multi-field collaborative dust removal, efficiently and reasonably allocates energy, saves electric precipitator cluster operating cost.

The utility model provides a kind of ultrasonic flaw detection system, in the system, controller controls transmitting circuit to generate high voltage pulse;High voltage circuit provides high voltage power supply for transmitting circuit;Transmitting circuit emits high voltage pulse to transducer, drives transducer to emit ultrasonic signal;Transducer emits the ultrasonic signal of set frequency to the sample to be measured, and receives the flaw detection echo signal returned by the sample to be measured, conversion is input to gain amplifier circuit as electric signal;Gain amplifier circuit carries out gain amplification processing to the electric signal corresponding to flaw detection echo signal;Analog-digital converter carries out analog-digital conversion to flaw detection echo signal, obtains flaw detection echo digital signal, and input to controller.The utility model improves system structure, realizes the feature information extraction and noise reduction processing of high-speed echo signal, also improve the signal-to-noise ratio of echo signal, effectively solve the problem of system missed detection caused by small sample defect, weak echo signal.

This utility model relates to the technical field of imaging devices, and more particularly to a switching mechanism and imaging chip, including a power input port for inputting a first voltage; a ramp voltage port for inputting a second voltage; a first power supply port connected to the power input port via a line, and also connected to the ramp voltage port via a line; and a plurality of control switches, each including a first switch and a second switch disposed between the power input port and the power supply port, and a third switch disposed between the ramp voltage port and the power supply port. This switching mechanism and imaging chip, when programmed, require a separate 10V switching circuit. Only a portion of the transistors in the switching circuit need to use high-voltage devices, avoiding the need for large-scale use of high-voltage devices and high-voltage power supplies in modules that generate HVWLPC1 or HVWLPC2.

This invention relates to the field of aerospace propulsion technology, and in particular to an oxygen-resistant Hall thruster electric propulsion system, comprising a Hall thruster, a radio frequency neutralizer, a power processing unit, a working propellant storage and supply system, and an integrated electronic control system. This invention establishes an electrical connection between the Hall thruster and the radio frequency neutralizer, directly connecting the collecting electrode to the negative terminal of a high-voltage power supply, eliminating the holding electrode and its independent power supply branch. Simultaneously, it combines a dual-path working propellant supply structure with oxidation-resistant conductive materials for the anode and collecting electrode. This allows the radio frequency neutralizer to rapidly establish a plasma electron source without the need for traditional hot cathode preheating. After the Hall thruster ejects the ion beam, electrons are automatically extracted based on the potential gradient. This not only reduces the complexity of the system's power supply structure and improves the discharge stability and electron compensation capability in low-purity working propellants and oxygen-containing environments, but also enhances the system's oxygen-resistant lifetime and rapid start-up performance in low Earth orbit oxygen-rich environments.

The application discloses a kind of round crystal processing with destatic device, belong to round crystal destatic technical field, including outer box and for being used to the processing mechanism of round crystal and carrying out destatic treatment, outer box is also provided with two for sending and sending out transfer mechanism and in-out mechanism of round crystal.The application is when round crystal enters the lower side of upper electrode plate, utilize high voltage power supply and electrify lower electrode sheet, form strong electric field, the electric field is excited by electrostatic induction on the back of round crystal and generates opposite polarity charge, generates uniform electrostatic adsorption force, firmly fixed on the surface of insulating sheet, realizes the lossless, clean fixing of round crystal;The application is set up air guide cabin and inner pole needle in the two sides of upper electrode plate, by applying several thousand volts high voltage generates strong electric field, ionize air and generate a large number of free electrons and positive ion, and form directional moving ion wind under the action of electric field, ion wind is directly blown to the surface of round crystal moving to the lower side of electrode plate, can rapidly, uniformly neutralize static charge on round crystal.

The present application relates to atmospheric pressure ion manipulation technology, specifically, the present application discloses a thermal desorption ionization reaction device, specifically, a thermal desorption ionization reaction device, comprising a stainless steel metal desorption ionization cavity, the metal desorption ionization cavity is a hollow circular cylinder with an open upper end and a closed lower end, an insulating cover for sealing the open upper end is arranged on the open upper end, and a gas and ion outlet is arranged in the middle of the insulating cover; the counter electrode and the electrode with holes are connected to the high-voltage output end of the high-voltage power supply and the ground electrode (or negative electrode) respectively. The voltage applied to the counter electrode and the electrode with holes is alternating current or direct current, and the voltage amplitude is 2000V. The present application improves the consistency and stability of batch production of thermal desorption ionization modules based on integrated design, reduces power consumption and processing cost, and is beneficial to the industrialization of mass spectrometry or ion mobility spectrometry.

The application discloses a vehicle jitter suppression method and device, a vehicle and a medium, and mainly relates to the field of motor control. The method is applied to a motor control system, the system comprising a signal acquisition circuit, a first processor, a signal output circuit and an inverter; the signal acquisition circuit is used for acquiring the motor speed, the motor target torque of the vehicle controller, the three-phase current of the motor and the direct current voltage of the high-voltage power supply; the first processor is used for calculating the suppression torque according to the motor speed and the motor target torque, and calculating the duty cycle according to the motor speed, the three-phase current, the direct current voltage and the suppression torque; the signal output circuit is used for generating a pulse signal according to the duty cycle and outputting the pulse signal to the inverter; and the inverter is used for converting the direct current voltage into three-phase voltage according to the pulse signal, and driving the motor to output the suppression torque through the three-phase voltage. Since the suppression torque is obtained based on the motor speed and changes with the motor speed, the vehicle jitter problem in the full-speed range can be solved.

The utility model provides a kind of high voltage pre-charging circuit and fuel cell system of fuel cell system, the high voltage pre-charging circuit includes the high voltage input terminal V1 for receiving external high voltage power supply, capacitor C2, pre-charging branch, the anode of capacitor C2 is connected with the anode of high voltage input terminal V1, the cathode of capacitor C2 is connected with the cathode of high voltage input terminal V1, capacitor C2 both sides parallel pre-charging branch, pre-charging branch is connected in series with the battery of fuel cell system, pre-charging branch includes inductance L1, diode D2, transformer TR2, field effect transistor FET2 that successively connect in series.The utility model has the beneficial effect that: the high voltage pre-charging circuit of the utility model makes pre-charging process reduce the loss of energy, improves the energy utilization of fuel cell system.

The application discloses a kind of bipolar high-voltage electrode soil remediation device and method based on infrared imaging regulation and control, it is related to soil pollution remediation technical field, comprising: two-way high-voltage power supply, the output of two-way high-voltage power supply is connected with bipolar high-voltage electrode assembly by high-voltage wire harness, and is used to output the positive and negative direct-current high-voltage pulse with amplitude ±10kV~±50kV, frequency is 5Hz~20Hz;Infrared imaging monitoring module, the infrared imaging monitoring module is installed on the holder support, and the infrared imaging monitoring module can be driven by holder support to carry out full coverage real-time imaging to the soil of embedded electrode area;The application captures the soil discharge thermal characteristics in real time by infrared imaging, determines the over-discharge and electric field blind area condition in combination with the repair method of the application, and adjusts the repair device parameters in combination with the determination condition, breaks through the limitation of traditional technology static setting, offline detection, forms closed-loop control system, effectively avoids over-discharge and electric field blind area problem, and improves repair uniformity and effect.

The application provides a PSM high-voltage power supply control system based on LabVIEW FPGA, relates to the technical field of high-voltage power supply control, and solves the technical problem that multiple PSM high-voltage power supplies cannot be independently and in parallel controlled with high precision in the prior art. The system specifically comprises: an upper computer, at least two local controllers connected with the upper computer, and at least one high-voltage power supply debugging device connected with the local controller. The upper computer comprises a first controller. At least two LabVIEW software for one-to-one control of the local controller are stored in the first controller. The local controller comprises a second controller and at least one FPGA module. The second controller is connected with the first controller and controls the FPGA module to generate a hardware timing signal for controlling the high-voltage power supply debugging device. The high-voltage power supply debugging device comprises a PSM module and a power module. The PSM module is used for turning on or off and adjusting an output voltage in response to the hardware timing signal. The power module is used for providing a power signal. The application is used for high-voltage power supply control.

The application discloses a kind of multi-source redundant power intelligent switching system and method, it is related to power supply control technical field, the system includes: dynamic threshold ideal diode, multi-source power supply unit, double distribution bus and protection circuit;Dynamic threshold ideal diode includes controller and metal oxide semiconductor field effect transistor, controller is built-in dynamic voltage threshold detection circuit;Multi-source power supply unit includes main power supply and backup power supply, main power supply includes high-voltage DCDC power converter and ground power supply, backup power supply uses several groups of low-voltage battery of low-voltage battery system, multistage redundancy design is used between three;Double distribution bus includes first and second distribution bus, and both are horizontal redundancy state;Protection circuit includes overvoltage protection circuit, electrostatic discharge protection circuit and transient voltage suppression circuit.The application is matched by dynamic threshold ideal diode, multi-source power supply unit and double distribution bus, realizes the accurate, fast switching of multi-source power on double bus.

The utility model belongs to electrospinning technical field relates to a kind of Janus nanofiber electrospinning device, liquid storage module, including N liquid storage tank, for storing spinning solution;Wherein, N≥2;Spinning module, its top is provided with recess, recess is separately provided with multiple sharp copper bars in, for the recess is divided into N area, each area bottom is provided with the liquid supply passage through recess bottom and spinning module side wall;Liquid supply module, including N liquid supply pump, each liquid supply pump is connected one liquid storage tank and one liquid supply passage by conduit, for the spinning solution in N liquid storage tank is transmitted to the N area in recess by liquid supply passage;High voltage power supply, anode is connected with each sharp copper bar, cathode is connected with receiving module, for forming high voltage electric field between sharp copper bar and receiving module, so that the spinning solution in each area in recess generates jet at the top of sharp copper bar and forms nanofiber.

A device and method for controlling the thickness of air gap defects for space charge measurement includes an aluminum electrode, a piezoelectric sensor below the aluminum electrode, a test sample lower piece above the aluminum electrode, a rigid partition suspended above the aluminum electrode and the test sample lower piece, the rigid partition having a through test hole and covered by an upper test sample; above the upper test sample, a horizontal bar with adjustable height driven by a vertical measuring instrument is arranged, a micrometer is arranged on the horizontal bar, a high-voltage electrode is arranged below the micrometer, the high-voltage electrode is connected to a high-voltage power supply, and the high-voltage electrode is aligned with the test hole of the rigid partition. The air gap defect thickness control device provided by this invention can achieve micron-level quantitative control of the air gap, effectively evaluating the influence of tiny air gap thickness on space charge distribution.

This invention provides a cylindrical membrane-type dielectric barrier discharge wastewater treatment device, relating to the field of wastewater treatment technology. The device includes a high-voltage electrode, an inner cylinder, an outer cylinder, an overflow tank, a ground electrode, a periodic structural membrane, and a base. The high-voltage electrode, inner cylinder, and outer cylinder are mounted on the base. The inner cylinder is fitted onto the high-voltage electrode, and the outer cylinder is fitted onto the inner cylinder. The high-voltage electrode, inner cylinder, and outer cylinder form a coaxial structure from the inside out. The ground electrode is adhered to the outer wall of the outer cylinder. The high-voltage electrode is used to connect to a high-voltage power supply. The overflow tank is installed at the end of the outer cylinder away from the base. The height of the inner cylinder relative to the base is greater than that of the outer cylinder relative to the base, and the height of the overflow tank relative to the base is greater than that of the inner cylinder relative to the base. The periodic structural membrane is installed on the inner wall of the outer cylinder. The periodic structural membrane on the inner wall of the outer cylinder helps maintain a stable water surface during discharge, preventing shaking and splashing, thus improving discharge stability. Simultaneously, the periodicity of the membrane significantly improves the uniformity of discharge and the stability of the discharge channel.

Disclosed in the present invention are an electronic circuit for improving electromagnetic ultrasonic transmission power and reception efficiency, and a control method. An electromagnetic ultrasonic transducer uses N sub-coils as an integral main coil; during high voltage transmission, by means of an electronic circuit, the N sub-coils is connected in parallel into a high voltage power output network; and during signal reception, the electronic circuit connects the N sub-coils in series into a large coil for receiving an electromagnetic ultrasonic echo signal, so as to enhance an electromotive force signal received in the coil. The present invention is a control circuit that reduces the impedance of a transducer during high voltage transmission, improves the power supply power obtained by the transducer, increases ultrasonic echo signals output by the transducer during reception, achieves differential symmetrical output of transducer signals, suppresses common-mode noise of the transducer, and improves the signal-to-noise ratio of received signals. The present invention solves the problem of low signal-to-noise ratio of electromagnetic ultrasonic echo signals caused by difficulty in further improving the conversion efficiency of the same transducer on the basis of existing electromagnetic ultrasonic technology.

This invention discloses a solid-state transformer efficiency testing device and method, belonging to the fields of power electronics technology and power conversion testing technology. The device includes a 380V AC power supply. The output of the 380V AC power supply is connected to the input of an AC-DC module. The output of the AC-DC module is connected to a DC bus. The DC bus is connected to the power input of an inverter power supply unit array. The secondary side output of the inverter power supply unit array is connected to a high-voltage frequency converter module. The DC bus is also connected to the low-voltage DC output of the solid-state transformer under test via a feedback branch. The output of the high-voltage frequency converter module is connected to the high-voltage input of the solid-state transformer under test. An input-side energy metering device is installed between these components, and an output-side energy metering device is installed on the feedback branch. This invention eliminates the need for a high-voltage power supply and a high-power load, enabling continuous full-power operation and efficiency testing under different load rates. It offers advantages such as low cost, low power consumption, and grid friendliness.

The application belongs to the technical field of high-voltage power supply sampling monitoring, and provides an ultrahigh-voltage electron gun power supply photoelectric isolation sampling circuit and a sampling method. In view of the problems of low sampling accuracy, poor surge resistance and difficult maintenance of the existing electron gun power supply under a 150kV floating high-voltage environment, the application adopts three groups of signal processing and isolation channels with the same structure, which correspond to the output of the main high-voltage, the auxiliary high-voltage and the filament in a floating cascade structure. Each channel independently completes sampling and isolation under the corresponding floating potential. The circuit includes a power supply circuit, a sampling connection circuit, a current and voltage sampling base plate with an integrated multi-stage overvoltage clamping network, and a detachable and plug-in sampling processing circuit board, a photoelectric conversion circuit board and an optocoupler signal transmission plugboard. Through photoelectric isolation and modular design, the circuit effectively suppresses the spark surge interference, realizes high-precision and high-reliability sampling, supports plug-and-play, and significantly improves the system maintenance convenience and operation stability.

The application provides a double-medium plasma reactor for a synthetic ammonia system, and relates to the technical field of chemical equipment.The double-medium plasma reactor comprises a central cooling water channel, an inner medium layer sleeved on the central cooling water channel, and an outer medium layer arranged outside the inner medium layer; the central cooling water channel is provided with a preset operation chamber, and an air inlet pipe and an air outlet pipe are arranged at both ends of the operation chamber; the central cooling water channel is arranged at the axial center of the reactor and is used for passing cooling fluid; a central high-voltage electrode is arranged between the central cooling water channel and the inner medium layer, the central high-voltage electrode is adjacent to the central cooling water channel, and both ends of the central high-voltage electrode are connected with a high-frequency high-voltage power supply; the double-medium plasma reactor solves the problem of low heat dissipation efficiency by arranging the central cooling water channel at the geometric center of the discharge area; and the central cooling water channel of the reactor can absorb heat generated in the discharge process in the shortest path, and the ammonia yield is significantly improved.

This provides a configuration that allows for stable charge adjustment of the sheet, regardless of the sheet width or the resistance change of the charge adjustment roller 910 in the charge adjustment section. [Solution] The charge adjustment device 9 adjusts the charge on the sheet on which the toner image has been fixed by the fixing device 7. The control unit applies a predetermined voltage from the charge adjustment high voltage power supply 90 to the charge adjustment device 9 when the sheet is not being transported to the charge adjustment nip section N formed by the charge adjustment roller 910 and the opposing roller 92. At that time, the control unit executes a mode to determine the relationship between current and voltage from the current value detected by the current detection circuit 93 and the predetermined voltage. Based on the relationship obtained in the mode and the length of the sheet in the sheet width direction obtained by the operation unit, the control unit determines the voltage to be applied from the charge adjustment high voltage power supply 90 to the charge adjustment device 9 when the sheet passes through the charge adjustment nip section N.

This utility model discloses a tabletop battery welding machine, including a main unit with a worktable on which welding fixtures are provided for fixing the welding rod and the battery motherboard; a laser welding system mounted on a lifting and adjusting mechanism fixedly mounted on the worktable; and a cooling system for cooling the laser welding system. This utility model significantly improves welding quality, reduces welding defects, and effectively lowers the failure rate by optimizing laser welding technology, thereby reducing battery scrapping and repair costs. This technology enhances welding efficiency, increases production speed, and improves process stability through high-voltage power supply control, making operation simpler and more widely applicable to various workpieces. It demonstrates significant progress and practical application value in the welding field, providing the industry with a high-quality, high-efficiency welding solution.

This invention relates to the field of power management technology. This application discloses a low-dropout voltage regulator circuit based on low-voltage devices adapted to high-voltage power supplies. To solve the problems of existing solutions requiring high-voltage devices, high cost, and inability to reuse low-voltage designs, this invention uses only low-voltage process devices. Overvoltage protection is achieved through a common-gate transistor with fixed gate bias, clamping the high-voltage input to a safe range. The control signal voltage is limited through a voltage divider clamping network. During power down, a voltage divider design is used to simultaneously turn off the power supply and ground switches. A pull-up start-up circuit to prevent degeneracy is also integrated. This circuit can directly convert a high-voltage input into a stable low-voltage output, driving ordinary low-voltage circuits without any modification, realizing the direct reuse of low-voltage designs in high-voltage scenarios. This solution has the advantages of extremely low cost, high security, low power consumption, reliable startup, and full compatibility with standard low-voltage CMOS processes, greatly expanding the application boundaries of low-voltage processes.