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45 results about "Energy current" patented technology
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Energy current is a flow of energy defined by the Poynting vector (E × H), as opposed to normal current (flow of charge). It was originally postulated by Oliver Heaviside. It is also an informal name for Energy flux.
Additive manufacturing of three-dimensional articles
ActiveUS20170348791A1Improve reliabilitySimple and inexpensive implementationAdditive manufacturing apparatusElectric discharge tubesPower flowBeam source
A method is provided for forming a three-dimensional article through successively depositing individual layers of powder material that are fused together so as to form the article, the method comprising the steps of: providing at least one electron beam source emitting an electron beam for at least one of heating or fusing the powder material, where the electron beam source comprises a cathode, an anode, and a Wehnelt cup between the cathode and anode; providing a guard ring between the Wehnelt cup and the anode and in close proximity to the Wehnelt cup, where the guard ring is having an aperture which is larger than an aperture of the Wehnelt cup; protecting the cathode and / or the Wehnelt cup against vacuum arc discharge energy currents when forming the three-dimensional article by providing the guard ring with a higher negative potential than the Wehnelt cup and cathode.
Owner:ARCAM AB
Noncontact electric energy and signal synchronous transmission system and control method thereof
InactiveCN105846684AReduce volumeImprove efficiencyDc-dc conversionElectric variable regulationLoose couplingEnergy conversion efficiency
Owner:CHINA UNIV OF MINING & TECH
Hybrid-secondary uncluttered permanent magnet machine and method
InactiveUS6977454B2Increase in sizeSynchronous generatorsMagnetic circuit rotating partsPermanent magnet rotorDc current
An electric machine (40) has a stator (43), a permanent magnet rotor (38) with permanent magnets (39) and a magnetic coupling uncluttered rotor (46) for inducing a slip energy current in secondary coils (47). A dc flux can be produced in the uncluttered rotor when the secondary coils are fed with dc currents. The magnetic coupling uncluttered rotor (46) has magnetic brushes (A, B, C, D) which couple flux in through the rotor (46) to the secondary coils (47c, 47d) without inducing a current in the rotor (46) and without coupling a stator rotational energy component to the secondary coils (47c, 47d). The machine can be operated as a motor or a generator in multi-phase or single-phase embodiments and is applicable to the hybrid electric vehicle. A method of providing a slip energy controller is also disclosed.
Owner:UT BATTELLE LLC
LED drive apparatus, systems and methods
ActiveUS20140085731A1Dimming ratioRapid triageElectroluminescent light sourcesElectric light circuit arrangementLuminous fluxPulse period
Light flux levels sensed from a color LED array control both current availability to the array and disable / re-enable a current bypass switch to shunt stored-energy current to or away from a selected LED. In continuous mode, a single flux pulse is created for the duration of a pre-established period. Feedback from the flux sensor pulses current to an energy storage device to maintain the light flux at a predetermined set-point. A particular dimming level is achieved by establishing both the pulse period and the flux magnitude. In discontinuous mode, one or more short flux pulses are created. Both the turn-on and the turn-off time of each flux pulse is controlled by alternately removing and then re-establishing a current shunt from the energy storage device to ground. Flux pulse magnitude is controlled by recognizing when the flux pulse has reached a predetermined set-point and re-establishing the current shunt to abruptly turn off current to the selected LED.
Owner:TEXAS INSTR INC
Reactive sputtering of silicon nitride films by RF supported DC magnetron
ActiveUS7179350B2Reduce defect and foreign particleReduce the temperatureCellsElectric discharge tubesVoltage amplitudeSputtering
An asymmetric alternating voltage (preferably 40 KHz) is provided between a pair of targets having a coaxial (preferably frusto-conical) relationship to (1) deposit the material in a uniform thickness on the substrate surface (2) eliminate dielectric material from the surfaces of the targets and other components (3) provide a single ignition of the targets and eliminate target ignitions thereafter and (4) reduce the substrate temperature by using low energy (“cold”) electrons from a plasma discharge to produce a low energy current. The asymmetry may result from amplitude differences between the voltage in alternate half cycles and the voltage in the other half cycles. A second alternating voltage (preferably radio frequency) modulates the asymmetric alternating voltage to provide the smooth plasma ignition. The different voltage amplitudes applied to each of the targets are also instrumental in providing for a substantially constant deposition thickness at the different positions on the surface of the substrate.
Owner:OEM GRP LLC
Hybrid-secondary uncluttered permanent magnet machine and method
InactiveUS20050218738A1Increase in sizeSynchronous generatorsMagnetic circuit rotating partsPermanent magnet rotorDc current
An electric machine (40) has a stator (43), a permanent magnet rotor (38) with permanent magnets (39) and a magnetic coupling uncluttered rotor (46) for inducing a slip energy current in secondary coils (47). A dc flux can be produced in the uncluttered rotor when the secondary coils are fed with dc currents. The magnetic coupling uncluttered rotor (46) has magnetic brushes (A, B, C, D) which couple flux in through the rotor (46) to the secondary coils (47c, 47d) without inducing a current in the rotor (46) and without coupling a stator rotational energy component to the secondary coils (47c, 47d). The machine can be operated as a motor or a generator in multi-phase or single-phase embodiments and is applicable to the hybrid electric vehicle. A method of providing a slip energy controller is also disclosed.
Owner:UT BATTELLE LLC
Method for controlling direct-current bus voltage of double-fed wind power converter
InactiveCN109980670AEasy to controlImprove voltage control capabilityPower network operation systems integrationElectric power transfer ac networkHysteresisSelf attenuation
The invention relates to a method for controlling the direct-current bus voltage of a double-fed wind power converter. The method employs a network side converter and a machine side converter to commonly control a direct-current bus voltage, the network side converter has a main effect, and the machine side converter performs auxiliary control for the transient process. In a network side convertercontrol unit, according to the voltage effective value and the generator slip of the power grid, a direct-current bus voltage reference value is calculated; an energy current feed-forward value and adirect current bus voltage closed-loop output current reference value are generated according to the direct-current bus voltage deviation, and the energy current feed-forward value and the direct current bus voltage closed-loop output current reference value are added as the network side active current reference value. In a machine side converter control unit, a steady-state self-attenuation PI regulator with hysteresis is adopted to perform auxiliary control on direct-current bus voltage in a transient process, and a control result and an active power instruction of a main controller of a wind turbine generator set are added to form a machine side active current reference value. The method can improve the stability of the voltage control of the direct current bus, and is beneficial to the excavation of the supporting capability of the doubly-fed wind motor group on the frequency and the voltage in the transient process of the power grid.
Owner:CORONA WIND EQUIP BEIJING CO LTD +1
Inverter energy current cycle test device
The present invention discloses an inverter energy-stream circulation testing device comprising a DC power supply, a trialed inverter, an inductor, a voltage sensor, a current sensor, a PWM rectifier and a control cabinet, all of which are assembled to realize the testing functions of the inverter. Each cabinet of the device is fixed on the ground, the trialed inverter is fixed on a testing platform, the inductor is arranged on an inductance platform, the main circuit of the PWM rectifier is arranged in an AC cabinet via an iron rack; the AC end of the trialed inverter is connected with one end of the inductor, the DC end of the converter is connected with the output end of a DC power supply; the AC end of the PWM rectifier is connected with the other end of the inductor, the DC end of the PWM rectifier is connected with the output end of an AC power supply; the DC sides of two converters, where one is tested and another is loaded, are connected with each other; the AC end of the DC power supply is connected with the electrical source. The device resolves the problem that converter testing platform is as usual characteristics of huge electric consumption with loading, loud noises and the need for the DC power supply with large power.
Owner:BEIJING JIAOTONG UNIV
Method for controlling universal-energy network by universal-energy current sequence parameter
ActiveCN102426663AImprove energy efficiencyAchieve optimizationData processing applicationsEnergy currentReal-time computing
The invention discloses a method for controlling a universal-energy network by a universal-energy current sequence parameter, which comprises the following steps of: analyzing the universal-energy current relationship of production, storage, application and regeneration in a universal-energy network system; according to a natural sequence parameter rule, determining the key sequence parameter of each level from the universal-energy current relationship, wherein the key sequence parameter is used for quickly evaluating and optimizing integral system performance; according to a level sequence parameter rule, determining the performance optimization order of the universal-energy network system; according to the optimization order, successively optimizing the key sequence parameter of each level; and according to the optimal link proportion rule, determining the optimal proportion of four links, wherein the optimal proportion of four links is used for lowering the redundant universal-energy current of the system. With the method, the performance of the universal-energy network system can be comprehensively optimized.
Owner:常熟市铜业总公司有限公司
System and Method for a Game Racquet Including an Actuator
InactiveUS20140296006A1Improve skill levelGymnastic exercisingStringed racketsBall impactLow voltage
The present invention provides a game racquet including an integrated circuit capable of supporting a low-voltage energy current. An embodiment of the invention provides a game racquet including one or more enhancements attached or integrated on the racquet frame. These enhancements may include but are not limited to: one or more LEDs, a sound amplification device, an electromagnetic vibration emitter, and other such enhancements as would be apparent to one skilled in the art. In a further embodiment, the game racquet responds electronically to ball impact on at least one of the strings, and subsequently performs and action or actions including but not limited to making a sound or sounds, triggering lights, triggering LEDs, triggering another type of automation on the racquet such as a vibration emitter within the handle.
Owner:BOTHWELL BRETT
Landslide, slip prediction method based on automatic cell machine
A predicting method of landslide based on cellular automaton includes selecting landslide to be predicted and applying normal presentation of cellular automaton, dividing cell space corresponding to landslide to be predicted to be MXN lattice, using each lattice to represent one cell, selecting one cell to judge its neighbor state, comparing energy current value of each neighbor cell with their energy limit valve if neighbor condition is satisfied, making comparison cyclically and representing that landslide is stable structure when cells with state value of zero can be connected to be a though line within two parallel borders.
Owner:CHONGQING UNIV
Dehumidifying apparatus, dehumidifying method and wind-energy current transformer of dehumidifying apparatus
ActiveCN104275077ASolve corrosiveFix damageDispersed particle separationPower conversion systemsWater vaporEnergy current
A disclosed dehumidifying method is used for dehumidifying the interior of a cabinet of a wind-energy current transformer. The dehumidifying method comprises: at a first moment, detecting a first current humidity value in the cabinet; detecting whether the first current humidity value is larger than a preset humidity value; when the first current humidity value is larger than the preset humidity value, generating a starting dehumidifying instruction; and controlling a dehumidifying unit in the cabinet to execute the starting dehumidifying instruction, and enabling air in the cabinet to be contacted with a cold-end surface of a semi-conductor refrigeration part of the dehumidifying unit, so as to change vapor in air into condensed water. The invention also discloses a dehumidifying apparatus and the wind-energy current transformer.
Owner:维谛新能源有限公司
System and method for a game racquet including an actuator
Owner:BOTHWELL BRETT
System and Method for a Game Racquet Including a Grommet Actuator
The present invention provides a game racquet including an integrated circuit capable of supporting a low-voltage energy current. An embodiment of the invention provides a game racquet including one or more enhancements attached or integrated on the racquet frame. These enhancements may include but are not limited to: one or more LEDs, a sound amplification device, and an electromagnetic vibration emitter. In a further embodiment, the game racquet responds electronically to ball impact on at least one of the strings, and subsequently performs and action or actions including but not limited to making a sound or sounds, triggering lights, triggering LEDs, triggering another type of automation on the racquet such as a vibration emitter within the handle. The game racquet frame comprising at least one string channel in the frame head, bridge, or other area, which houses an actuator responds mechanically to a string movement triggering electronic connection.
Owner:BOTHWELL BRETT
Additive manufacturing of three-dimensional articles
ActiveUS20180169784A1Improve reliabilitySimple and inexpensive to implementAdditive manufacturing apparatusElectric discharge tubesBeam sourceEnergy current
A method is provided for forming a three-dimensional article through successively depositing individual layers of powder material that are fused together so as to form the article. The method includes: providing at least one electron beam source emitting an electron beam; providing a leakage current detector for sensing a current through the anode and / or the Wehnelt cup; providing a low impedance voltage source connectable to the Wehnelt cup via a switch, where the voltage source is having a more negative potential than a negative potential applied to the cathode; and protecting the cathode against vacuum arc discharge energy currents when forming the three-dimensional article by providing the Wehnelt cup to the low impedance negative voltage by closing the switch when the leakage current detector is sensing a current through the anode and / or the Wehnelt cup which is higher than a predetermined value.
Owner:ARCAM AB
Energy management and control system and method based on two-dimensional bidirectional energy deploying tree
ActiveCN105119271AImprove allocation efficiencyImprove the efficiency of management operation and maintenanceSingle network parallel feeding arrangementsAc network load balancingControl layerPower balancing
The invention discloses an energy management and control system and method based on a two-dimensional bidirectional energy deploying tree. The system includes an internetwork management and control layer, a region control layer and a local control layer; the internetwork management and control layer includes a micro grid energy management system and is used for deploying energy currents in micro grids and coordinating a plurality of micro power grids to realize combined control; the region control layer includes a micro grid central controller and a plurality of micro grids, wherein the micro grid central controller is used for deploying energy of the region control layer and collecting the electric quantity of the local control layer and comprehensively regulating and controlling micro grid operation; and the local control layer includes a distributed power controller and a load controller, and realizes micro grid transient power balance and load management. The method of the energy management and control system is characterized in that an energy deploying search mode is a mode combining random search starting from an upper-level micro power grid with sequential search of micro power grids of the same level, the hit rate of temporary transfer of energy is effectively improved, and system overhead is reduced.
Owner:GUODIAN NANJING AUTOMATION
Automatic energy-blending absorbing method for marine waves
InactiveCN1424502AExtended range of work flowImprove conversion efficiencyMeasurement devicesMachines/enginesEnergy absorptionNew energy
An utilization method of ocean wave energy can make various utilization system of ocean wave energy achieve the most high converting efficiency in unstable energy current with large range chnages as well as can protect the system by the action of energy current exceedded the working range. It converts the wave energy absorbed by energy absorbing device in the system into the mechanical energy in the form of reciprocating movement and furthermore converts this form of mechanical energy into the desired form of mechanical energy, also it has avoided the shortcomings that the ocean wave energy with the scattered power flow distribution can not be utilized effectively nor can the utilization system of wave energy the protected effectively.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
Method for measuring distribution of intensity of light spots of reflecting type concentrating photovoltaic condenser
Owner:兰州大成科技股份有限公司 +1
Water quality detecting and monitoring system device and method based on light energy integrating sphere
ActiveCN111487224AScattering properties measurementsDesign optimisation/simulationLight energyWater quality
The invention relates to a water quality detection monitoring system device and method based on a light energy integrating sphere, wherein the device comprises a front-end detection monitoring deviceand a rear-end detection monitoring system, and the front-end detection monitoring device and the rear-end detection monitoring system carry out the data transmission through network communication. The front-end detection monitoring device comprises an energy module, a structure module, a main control module and a peripheral module, the energy module is connected with the structure module, and theenergy module, the structure module and the peripheral module are all connected with the main control module; the energy module is used for providing an energy current for the front-end detection monitoring device, the structure module is used for detecting and monitoring the water quality, and the peripheral module is used for transmitting the acquired light energy data to the rear-end detectionmonitoring system; the rear-end detection monitoring system comprises an AI model base, a database module, a big data calculation module, a management module and an application module, and the AI model base, the database module, the big data calculation module and the application module are all connected with the management module. According to the present invention, the water quality is monitored in real time, and the result accuracy is high.
Owner:南京红松信息技术有限公司
Circuit for testing inrush current
InactiveUS20070030710A1Emergency protective circuit arrangementsPower supply testingEnergy currentCapacitor
A circuit for testing an inrush current of a power supply includes a rectifier (10), a capacitor (30), and an ammeter (90). The rectifier includes input terminals (1) adapted to connect with an AC supply (Vin), and output terminals (3) adapted to supply a direct voltage. The capacitor is connected in parallel to the output terminals of the rectifier. The ammeter is connected between the capacitor and the power supply. The capacitor is charged by the AC supply via the rectifier. When the voltage of the capacitor reaches a pre-determined value, the capacitor supplies energy to the power supply, and the ammeter measures the magnitude of the inrush current.
Owner:HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
System and method for a game racquet including a grommet actuator
The present invention provides a game racquet including an integrated circuit capable of supporting a low-voltage energy current. An embodiment of the invention provides a game racquet including one or more enhancements attached or integrated on the racquet frame. These enhancements may include but are not limited to: one or more LEDs, a sound amplification device, and an electromagnetic vibration emitter. In a further embodiment, the game racquet responds electronically to ball impact on at least one of the strings, and subsequently performs and action or actions including but not limited to making a sound or sounds, triggering lights, triggering LEDs, triggering another type of automation on the racquet such as a vibration emitter within the handle. The game racquet frame comprising at least one string channel in the frame head, bridge, or other area, which houses an actuator responds mechanically to a string movement triggering electronic connection.
Owner:BOTHWELL BRETT
LED drive apparatus, systems and methods
ActiveUS9554435B2Electric signal transmission systemsElectroluminescent light sourcesLuminous fluxPulse period
Owner:TEXAS INSTR INC
Additive manufacturing of three-dimensional articles
ActiveCN110301026AImmune to vacuum arc discharge currentImprove reliabilityAdditive manufacturing apparatusElectric discharge tubesBeam sourceVoltage source
A method is provided for forming a three-dimensional article through successively depositing individual layers of powder material that are fused together so as to form the article. The method includes: providing at least one electron beam source emitting an electron beam; providing a leakage current detector for sensing a current through the anode and / or the Wehnelt cup; providing a low impedancevoltage source connectable to the Wehnelt cup via a switch, where the voltage source is having a more negative potential than a negative potential applied to the cathode; and protecting the cathode against vacuum arc discharge energy currents when forming the three-dimensional article by providing the Wehnelt cup to the low impedance negative voltage by closing the switch when the leakage currentdetector is sensing a current through the anode and / or the Wehnelt cup which is higher than a predetermined value.
Owner:ALCAM
Current driver for LED
InactiveUS20110204799A1Less input energyElectrical apparatusElectroluminescent light sourcesPower flowFull wave
A current driver for powering an LED assembly comprises an input capacitor and a full wave rectifier. The LED assembly is connected to the rectifier output terminals. A driven LED assembly may be formed of series and parallel strings of individual LEDs. AC Line frequencies, e.g., 50 cycles, 60 cycles, non-line AC frequencies; and ranges of source voltages, e.g., 120 to 220 volts are accommodated by the driver. The driver provides essentially equal energy current pulses to the LED load, coincident with the time and the duration of the positive excursions of the input power. Energy is delivered to the LED load in a 50% duty cycle. Transfer of energy from an AC input power source to an LED assembly is independent of the output parameters of that source.
Owner:ALBRECHT JOHN C
Additive manufacturing of three-dimensional articles
ActiveUS10525547B2Improve reliabilitySimple and inexpensive implementationAdditive manufacturing apparatusElectric discharge tubesBeam sourceEnergy current
A method is provided for forming a three-dimensional article through successively depositing individual layers of powder material that are fused together so as to form the article, the method comprising the steps of: providing at least one electron beam source emitting an electron beam for at least one of heating or fusing the powder material, where the electron beam source comprises a cathode, an anode, and a Wehnelt cup between the cathode and anode; providing a guard ring between the Wehnelt cup and the anode and in close proximity to the Wehnelt cup, where the guard ring is having an aperture which is larger than an aperture of the Wehnelt cup; protecting the cathode and / or the Wehnelt cup against vacuum arc discharge energy currents when forming the three-dimensional article by providing the guard ring with a higher negative potential than the Wehnelt cup and cathode.
Owner:ARCAM AB
Variable energy current limiting lightning conductor convenient to fix
InactiveCN107565385AReduce the impactEasy to adjustInstallation of lighting conductorsCorona dischargeEpoxyCurrent limiting
The invention discloses a convenient and fixed energy-changing current-limiting type lightning rod, which comprises a lightning rod tip, a casing, a support rod, a first bushing and a second bushing, and the upper end of the second bushing is provided with a first bushing , one side of the first casing is provided with an upper connecting rod and a lower connecting rod, the upper connecting rod and the lower connecting rod are fixedly connected with the first casing through an L-shaped bracket, and the ends of the upper connecting rod and the lower connecting rod are respectively fixedly connected There are an upper collar and a lower collar, the upper end of the first casing is provided with a support rod, the upper end of the support rod is fixedly connected with a casing, the center of the casing is provided with a lightning guiding inner core, and the top of the casing is filled with an epoxy sealing layer, A through hole is opened in the middle of the epoxy sealing layer, and a lightning-termination needle tip is inserted in the through hole. The invention has a simple structure and a reasonable design, and can effectively prevent the electromagnetic field generated by the lower lead wire from affecting the surrounding electrical equipment. Easily blown over by wind and rain.
Owner:庞明兰
Magnetic stimulation devices and methods
ActiveCN102802725BImprove reliabilityGood repeatabilityMagnetotherapy using coils/electromagnetsHigh energyElectromagnetic pulse
The present publication discloses a device and method for generating magnetic pulses and directing them to brain. The device in accordance with the invention comprises means (15) for generating short, high energy current pulses (18), means (7) for controlling amplitude (16) of the current pulses (18), means (1) for generating high energy electromagnetic field stimulation pulses from the current pulses (18) and directing them to brain, and means (6, 14) for measuring biologic responses to the stimulation pulses. In accordance with the invention the device includes means (7) for creating such a pulse sequence (17) of electromagnetic pulses where the amplitude (18) varies irregularly.
Owner:内克斯蒂姆股份公司
Additive manufacturing of three-dimensional articles
ActiveUS10987752B2Improve reliabilitySimple and inexpensive implementationAdditive manufacturing apparatusElectric discharge tubesBeam sourceEngineering
A method is provided for forming a three-dimensional article through successively depositing individual layers of powder material that are fused together so as to form the article. The method includes: providing at least one electron beam source emitting an electron beam; providing a leakage current detector for sensing a current through the anode and / or the Wehnelt cup; providing a low impedance voltage source connectable to the Wehnelt cup via a switch, where the voltage source is having a more negative potential than a negative potential applied to the cathode; and protecting the cathode against vacuum arc discharge energy currents when forming the three-dimensional article by providing the Wehnelt cup to the low impedance negative voltage by closing the switch when the leakage current detector is sensing a current through the anode and / or the Wehnelt cup which is higher than a predetermined value.
Owner:ARCAM AB
Automatic energy-blending absorbing method for marine waves
InactiveCN1207492CExtended range of work flowImprove conversion efficiencyMeasurement devicesMachines/enginesEnergy absorptionNew energy
An utilization method of ocean wave energy can make various utilization system of ocean wave energy achieve the most high converting efficiency in unstable energy current with large range chnages as well as can protect the system by the action of energy current exceedded the working range. It converts the wave energy absorbed by energy absorbing device in the system into the mechanical energy in the form of reciprocating movement and furthermore converts this form of mechanical energy into the desired form of mechanical energy, also it has avoided the shortcomings that the ocean wave energy with the scattered power flow distribution can not be utilized effectively nor can the utilization system of wave energy the protected effectively.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
A high-efficiency energy-saving current amplifier
The invention relates to a high-efficiency energy-saving current amplifier, which belongs to the field of relay protection test equipment, and in particular relates to a relay protection tester device. The drain D of the NMOS tube is connected to the output terminal of the equivalent module of the current amplifier as the input terminal, the source of the NMOS tube is connected to the load as the output terminal, and the gate is connected to the logic control circuit; the value of the sampling resistor R15 is reduced from 0.1 ohm to 0.02 ohm ; Add a new sampling resistor R16 with a value of 0.3 ohms between the drain D and the source S; control the NMOS tube to be turned off by the gate voltage, when the output current of the current amplifier is greater than or equal to 15 amperes, the gate voltage reaches the threshold value, The NMOS tube is in the closed state, and the current flows through the NMOS tube branch; when the output current of the current amplifier is less than 15 amperes, the gate voltage does not reach the threshold, the NMOS tube is in the disconnected state, and the current flows through the newly added sampling resistor branch. The present invention utilizes the ability of the gate voltage of the NMOS tube to reach the threshold to form a conductive channel between the source and the drain, realizes the current amplifier of the relay protection tester to reduce power loss, improve sampling accuracy, reduce investment, and increase the maximum output current Etc.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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