2931 results about "High voltage pulse" patented technology

An apparatus and method for non-invasive treatment in lieu of cosmetic surgery is disclosed. The apparatus comprises a combination of a high and low voltage pulse generators connected to two or more electrodes placed on a treatment site of the patient's body. High voltage pulses, delivered to the electrodes, create an electric field that kills subcutaneous fat cells. Low voltage pulses, delivered to the same or individual electrodes provide transcutaneous electrical nerve stimulation (TENS), blocking the signals of discomfort or pain that may arise from the high voltage pulsing.

A method and system for applying addressing voltages to pixels of a display involves receiving input data. The input data includes an indication of an addressing voltage impulse to be applied to a pixel via an electrode. One or more voltage sources are selected, to provide the addressing voltage impulse. The one or more voltage sources each have a pre-selected voltage, The selected one or more voltage sources are electrically connected to an electrode to apply the addressing voltage impulse to the pixel. The invention also provides a method of driving an electro-optic display which uses an intermediate image of reduced bit depth, and a method of driving an electro-optic display which uses a limited number of differing drive voltages, with higher voltage pulses being used before lower voltage pulses.

A method and system for applying addressing voltages to pixels of a display involves receiving input data. The input data includes an indication of an addressing voltage impulse to be applied to a pixel via an electrode. One or more voltage sources are selected, to provide the addressing voltage impulse. The one or more voltage sources each have a pre-selected voltage, The selected one or more voltage sources are electrically connected to an electrode to apply the addressing voltage impulse to the pixel. The invention also provides a method of driving an electro-optic display which uses an intermediate image of reduced bit depth, and a method of driving an electro-optic display which uses a limited number of differing drive voltages, with higher voltage pulses being used before lower voltage pulses.

A method and apparatus for fat destruction and body contouring. The method comprises pre-heating treated tissue and applying a high voltage pulse to destroy adipose tissue. The device includes an energy source for tissue heating and an HV pulse generator for applying voltage pulsed in the range of 200V to 5 kV.

Machine for ground drilling, with a circulating fluid, by the utilization of electric discharge generated by high-voltage pulses between electrodes. It may comprise: —A drill-bit 1 with electrodes movable relative to each other, so that bottom-hole physical contact be secured for all the electrodes 4 on all bottom-hole topographies. —Pointed hydraulic nozzles for jetting the fluid, to remove primary cuttings and with pressure expansion across the nozzles 7 at no less than 4 MPa. —A high-voltage pulse generator deployed down-hole at a minimum distance from the drill-bit 1. —A rotating or oscillating bit causing the borehole cross-sectional excavation to occur, and electric discharge between a plurality of electrodes situated on the bit face along one or a few radii and tangents. —A bottom hole assembly for annular hole-making with core storage, transportation, down-hole closed loop discharge fluid circulation. A discharge fluid storage may be incorporated. A drilling method is also described.

An apparatus and method for minimally invasive treatment of deep subcutaneous fat deposits in lieu of cosmetic surgery is disclosed. The apparatus comprises a high voltage pulse generator connected to two or more needle electrodes at least one of which is configured for placement deeply under the skin in a treatment site of the patient's body. High voltage pulses, delivered to the electrodes, create an electric field that kills subcutaneous fat cells.

An apparatus and method for performing non-invasive treatment of the human face and body by electroporation in lieu of cosmetic surgery is provided. The apparatus comprises a high voltage pulse generator and an applicator having two or more electrodes in close mechanical and electrical contact with the patient's skin for applying the pulses to the patient's skin. The applicator may consist of two pieces with one electrode having a sharp tip and another having a flat surface. High voltage pulses delivered to the electrodes create at the tip of the sharp electrode an electric field high enough to cause death of relatively large subcutaneous fat cells by electroporation. Moving the electrode tip along the skin creates a line of necrotic subcutaneous fat cells, which later are metabolized by the body. Multiple applications of the electrode along predetermined lines on the face or neck create shrinkage of the skin and the subcutaneous fat volume underlying the treated area.

An apparatus and method for non-invasive treatment in lieu of cosmetic surgery is disclosed. The apparatus comprises a combination of a high and low voltage pulse generators connected to two or more electrodes placed on a treatment site of the patient's body. High voltage pulses, delivered to the electrodes, create an electric field that kills subcutaneous fat cells. Low voltage pulses, delivered to the same or individual electrodes provide transcutaneous electrical nerve stimulation (TENS), blocking the signals of discomfort or pain that may arise from the high voltage pulsing.

The present invention provides for pulsed power breaking and drilling apparatuses and methods. The present invention comprises two pulsed power systems coordinated to fire one right after the other. The first pulsed power system, comprising a spiker, may create a high voltage pulse that breaks down the insulative properties of the substrate and may create an arc channel in the substrate. It is designed for high voltage but low energy, at high impedance. The second pulsed power system, comprising a sustainer, is designed to provide high current into the arc, but at low voltage, thus better matching the impedance of the arc and achieving much more efficient energy transfer.

An electronic animal trap with a CPU-controlled, rearming, three-killing-plate configuration and extended killing cycle for trapping and exterminating larger rodents such as rats. The high-voltage output circuit is connected to a pair of killing plates which are activated with a high-voltage pulse train for a killing cycle when a pest of known impedance is sensed across said pair of plates. A third killing plate, electrically coupled to a first plate of said pair of plates, is brought to the voltage level of the first plate within approximately 1 msec of circuit activation for increased kill and escape-prevention capabilities.

Disclosed is a low frequency stimulator provided in a mobile terminal, which comprises a high-voltage pulse generator for adjusting a voltage of the mobile terminal to a level suitable for low frequency stimulation; an output controller for outputting a voltage output from the high-voltage pulse generator in a unipolar or bipolar format and controlling the cycle of the output voltage; an electrode section for delivering a stimulation pulse according to the voltage output from the output controller; and a control section for controlling a first switching signal applied to the high-voltage pulse generator to adjust the level of the voltage and controlling a second switching signal applied to the output controller to output a unipolar or bipolar voltage of the controlled cycle.

The invention discloses an ion implantation and deposit method of high-power composite pulse by magnetic control sputtering, which belongs to the field of material surface treatment technology and solves the problems of large particles and low film deposit efficiency in an adopted method in which negative high voltage pulse is applied to a workpiece. The method disclosed by the invention comprises the steps of: 1. placing the workpiece on a sample platform in a vacuum chamber, connecting the workpiece with a high-voltage pulse power supply, and connecting a magnetic control sputtering target source with a magnetic control sputtering power supply; and 2. implanting and depositing: when the vacuum degree in the vacuum chamber is lower than 10-2Pa, introducing working gas until the vacuum degree in the vacuum chamber reaching 0.011-10 Pa, starting up the high-voltage pulse power supply, adjusting the voltage value of output pulse of the high-voltage pulse power supply to 0.5-100kV, adjusting the pulse frequency to 0-1000Hz, adjusting the pulse width to 0-500 microseconds, starting up the magnetic control power supply, adjusting required process parameters by direct-current luminance pre-ionization, and controlling the voltage phase difference of the two power supplies to be -1000-1000 microseconds to perform the ion implantation and deposit.

Two distinct projectile stages are employed in a projectile configured to be fired at a remote target from a rifle, grenade launcher, gas gun or the like. A first stage comprises a pair of wire tethered contact darts for applying an immobilizing electrical discharge to the target. The second stage comprises a battery, circuits, transformer and wires used to generate a high voltage pulsed signal and apply it to the contact darts in the first stage. The higher mass of the second stage impacts the lower mass first stage at launch causing the first stage to be propelled to the target while the slower second stage hits the ground short of the target.

In order to treat a biological material (1) containing living cells with a plasma (4) generated by a gas discharge at atmospheric pressure (9) an electrode (3) is arranged at a distance to the biological material (1). Further, a solid body dielectric (2) is arranged between the electrode (3) and the biological material (1), directly in front of the electrode (3) and at a distance to the biological material (1). Then a high alternating voltage consisting of separated high voltage pulses of alternating polarity is applied to the electrode (3) for igniting and maintaining a dielectric barrier gas discharge within a region between the dielectric (2) and the biological material (1).

A method and device for aggregating algae in an aqueous solution is disclosed. The method can include providing an algae feed comprising a liquid and algae dispersed therein. The algae feed can be aggregated by applying a nanosecond pulsed electric field to the algae feed. The nanosecond pulsed electric field can include a plurality of electric pulses having a pulse duration ranging from 1 to 1,000 nanoseconds. The method can also include separating an aggregated algae stream from the algae feed and feeding the aggregated algae stream to a lipid extraction operation.

A method for modifying an ePTFE surface by plasma immersion ion implantation includes the steps of providing an ePTFE material in a chamber suitable for plasma treatment; providing a continuous low energy plasma discharge onto the sample; and applying negative high voltage pulses of short duration to form a high energy ion flux from the plasma discharge to generate ions which form free radials on the surface of the ePTFE material without changing the molecular and / or physical structure below the surface to define a modified ePTFE surface. The step of applying the high voltage pulses modifies the surface of the ePTFE without destroying the node and fibril structure of the ePTFE, even when the step of applying the high voltage pulses etches and / or carburizes the surface of the ePTFE. The modified surface may have a depth of about 30 nm to about 500 nm. The ions are dosed onto the ePTFE sample at concentrations or doses from about 1013 ions / cm2 to about 1016 ions / cm2.

A system massages a user's feet and generates an electro-kinetic airflow that contains safe amounts of ozone that can deodorize the user's feet or socks. The system includes an ion generator comprising a high voltage pulse generator whose output pulses are coupled between left and right first and second electrode arrays. Preferably the first electrode array includes first and second pointed electrodes, and the second electrode array includes annular-like electrodes having a central opening coaxial with the associated pointed electrode. Preferably the annular-like electrodes are formed from a single sheet of metal by extrusion or punching such that the surface of the annular-like electrodes is smooth and continuous through the opening and into a collar region through which the air flows. Particulate matter in the ambient air electrostatically adheres to the smooth continuous surface of the annular-like electrodes.

A long pulse power system for gas discharge lasers. The system includes a sustainer capacitor for accepting a charge from a high voltage pulse power source. A peaking capacitor with a capacitance value of less than half the sustainer capacitance provides the high voltage for the laser discharge.

The invention provides a device, a system and a method for measuring space charges by using an electro-acoustic (PEA) method. The device comprises a first electrode, a second electrode, a first thermostatic source, a second thermostatic source, a high-voltage direct current power supply, a pulse generator and a piezoelectric transducer, wherein the first electrode is used for contacting with one surface of the tested insulation material sample; the second electrode is used for contacting with the other surface of the tested insulation material sample; the first thermostatic source is used forconducting the temperature to the first electrode; the second thermostatic source is used for conducting the temperature to the second electrode; the high-voltage direct current power supply is used for transmitting the high-voltage direct current to the first electrode; the pulse generator is used for transmitting a high-voltage pulse signal to the first electrode; the piezoelectric transducer is used for detecting the acoustic signal of the tested insulation material sample, generated by the functions of the temperature gradient field, the high-voltage electric field and the high-voltage electric pulse, and is used for converting the acoustic signal into an electrical signal to output. The invention is used for measuring the distribution of the space charges in the high-voltage direct current power equipment insulation in the temperature gradient field.

The present invention relates to a vehicle air purifier with a negative / positive ion generator and an air conditioning system using the same. The vehicle air purifier includes a case including an air inlet and an air outlet, a filter arranged in the case at the side of the air inlet, a blower fan rotatably mounted in the case, and a negative / positive ion generator arranged in an air path of at least one of the air inlet and the air outlet, to emit negative ions and positive ions to air in accordance with emission of electrons. The negative / positive ion generator includes a body fixed to the case and provided with a high-voltage generator for generating high-voltage pulses, and a first discharge electrode and a second discharge electrode electrically connected to the high-voltage generator, to generate electrons by the high-voltage pulses applied from the high-voltage generator, and to emit the electrons to the air path of the at least one of the air inlet and air outlet, thereby causing negative ions and positive ions to be generated.

The present invention belongs to the technical field of air sterilizing and purification and in particular relates to a plasma air sterilizing and purifying device and an air sterilizing and purifying method. The plasma air sterilizing and purifying device comprises a plasma reactor, a pulse power supply, a fan component, a control device, a power adaptor, and a housing case, wherein the reactor is provided with positive electrodes formed by several nickel-chromium alloy wires or nickel-chromium alloy belts, and the two ends of each positive electrodes are fixed in the corresponding grooves on the micro-discharge preventive conductor rail; and a pulse power supply has a digital control circuit with an oscillator, an error amplifier and a PWM comparator inside which converts signals into a digital control current to control the width of the high-voltage pulse.

The invention relates to a device for performing experiments by combining high-voltage pulse discharging and the traditional coal seam anti-reflection technology, in particular to a coal seam anti-reflection experiment device based on high-voltage electric pulse. The coal seam anti-reflection experiment device based on high-voltage electric pulse comprises a high-voltage pulse power supply, a first tube body, a second tube body, a third tube body, a rigid triaxial pressure chamber, a pressure testing pump, a hydraulic control system and a sound reflection preamplifier, wherein the first tube body, the second tube body and the third tube body are connected in sequence. The traditional hydraulic fracturing technology is simulated in the rigid triaxial pressure chamber, the high-voltage pulse power supply supplies power to a discharging electrode, therefore, the positions around a through hole of a coal sample fracture, a fracturing positions and an expanding process of the fractures in the coal sample are monitored all the time, critical factors affecting fracture development of the coal sample and state transformation of gas, an actuating range and effect laws of pulse discharging on fracture development can be obtained through the later CT scanning and electron microscopy observation results, and a theoretical foundation is provided for practical application of high-voltage pulse discharging into underground coal seam anti-reflection.

The invention relates to a method to remove the non-degradable organic in water with a packed bed in high-voltage impulse electric field, which comprises: forcing impulse high voltage between the high-voltage electrode (2) and the grounding electrode (3) in reactor (4) filled particulate filling (5) with high dielectric constant; at the same time, pumping the being treated water to sprinkle evenly by mist liquid droplet form to the reaction area through an atomizer or sprinkler (6) on top between two electrodes, and forming a thin water film on surface of (5); exposing air, oxygen or ozone evenly by the aeration tube arranged on middle below the (2) and (3). This invention overcomes the drawbacks in prior art, such as flooding the filling, realizing hardly local filling discharge, large energy consumption, and disbenefit to mass transfer and diffusion.

High-voltage pulses ablation systems and methods are used to ablate tissue and form lesions. A variety of different electrophysiology devices, such as catheters, surgical probes, and clamps, may be used to position one or more electrodes at a target location. Electrodes can be connected to power supply lines and, in some instances, the power to the electrodes can be controlled on an electrode-by-electrode basis. High-voltage pulse sequences provide a total amount of heating that is typically less than that which is observed with thermally-based radiofrequency energy ablation protocols.

A region-of-interest setting unit sets a region of interest to be included in an ultrasound image. A first movement-amount calculating unit sequentially calculates a movement amount of the set region of interest between reception data along the time sequence as a first movement amount. A transmitting-receiving delay-amount computing unit computes a delay amount for sequentially shifting a scan region of an ultrasonic beam based on the sequentially calculated first movement amount. A computation / control circuit performs control so as to generate a high voltage pulse based on the computed delay amount. A second movement-amount calculating unit sequentially calculates a movement amount of the region of interest between image data along the time sequence as a second movement amount. A display-position correcting unit performs a correction such that the region of interest included in the image data is to be displayed at the same display position, based on the second movement amount.