194 results about "Inductive coupling" patented technology

The invention discloses a non-intrusive sensor with an external excitation source and a voltage measurement method, and the non-intrusive sensor comprises an induction signal collection unit, an induction signal conditioning unit, and a main control unit. The main control unit is respectively connected with the induction signal conditioning unit and the cable power supply, the induction signal conditioning unit is connected with the induction signal acquisition unit, and the induction signal acquisition unit is in non-contact inductive coupling connection with a cable to be detected; the main control unit is used for injecting the specific excitation signal into an alternating current loop of a cable power supply to form a composite signal, analyzing the composite signal based on a preset excitation source amplitude parameter, and calculating the power supply voltage of the to-be-detected cable; the induction signal acquisition unit generates a corresponding induction signal by capturing electric field energy generated by a composite signal in the to-be-detected cable; the induction signal conditioning unit carries out standardization processing on the induction signal. According to the invention, the technical problems of low external excitation voltage measurement precision, low system integration and single excitation source generation mode in the prior art are solved.

The invention relates to the technical field of micro display, and discloses a display panel and a preparation method thereof.The display panel comprises pixel units arranged in an array, each pixel unit comprises a driving circuit layer arranged on one side of a substrate, and each driving circuit layer comprises multiple metal wire layers and interlayer dielectric layers arranged between the adjacent metal wire layers; the display panel comprises an isolation structure arranged between any two adjacent pixel units, and the lower end of the isolation structure extends to be flush with the bottom face of any metal wire layer or any interlayer dielectric layer in the direction perpendicular to the substrate or extends into the substrate. The isolation structure comprises a bottom insulating layer and side wall insulating layers arranged on the side walls of any two adjacent driving circuit layers. The isolation grooves are formed between the pixels and are filled with materials such as gas, low-dielectric-constant media or metal, so that capacitive coupling, leakage current and inductive coupling between the pixels are reduced, and the problems of contrast reduction, color distortion, inaccurate gray scale and the like caused by crosstalk are solved.

Method for operating a device (100) for wirelessly transmitting energy towards an electrical load (200) by means of inductive coupling, wherein the device (100) comprises: - a rectifier (108) for generating a DC voltage (US) from a mains AC voltage (UN), - an inverter (102) supplied by the DC voltage (US) configured to generate a pulse-width modulated control signal (AS), and - a power coil (101) controlled by the pulse-width modulated control signal (AS), by means of which an alternating magnetic field can be generated for transmitting the energy during predetermined transmission cycles, - wherein the method comprises the following steps for predetermined operating conditions: - determining, for a plurality of time points during a respective transmission cycle,which energy has been transferred from the device (100) towards the electrical consumer (200) up to the corresponding time during the respective transmission cycle, - comparison of the transferred energy with a maximum value and - if the transferred energy is equal to or greater than the maximum value, switching off the pulse width modulated control signal (AS) for the remaining part of the transmission cycle.

The application relates to the communication technical field, and provides a filter and a coupling polarity adjusting method.The filter comprises a first component, a second component, a first resonator, a second resonator and a coupling piece, the first resonator and the second resonator are located in a first resonant cavity and a second resonant cavity formed between the first component and the second component; one end of the coupling piece is located in the first resonant cavity and connected to the first resonator or the first component to form a short-circuit end, and the other end of the coupling piece is suspended in the second resonant cavity and located on one side of the second resonator to form an open-circuit end; and the coupling piece is used for capacitive coupling or inductive coupling between the first resonator and the second resonator.The filter provided by the application can realize capacitive coupling or inductive coupling between the first resonator and the second resonator by setting the coupling piece with the same structure and only setting different lengths, and the structure can be effectively simplified.

The application provides a transient ground potential rise induced coupling determination method through cable shielding layer, and belongs to the technical field of cable shielding layer.The application establishes a distributed parameter partial element equivalent circuit model of a grounding network, solves transient ground potential distribution by using a finite difference time domain method, obtains equivalent transfer impedance frequency characteristics of a braided shielding layer by using a four-port S parameter vector network analysis method and a variational asymptotic homogenization multi-scale algorithm, solves core line common mode voltage and differential mode voltage by establishing a multi-conductor transmission line equation group, constructs an artificial intelligence prediction model based on a topology perception graph neural network, solves a large-scale sparse admittance matrix by using a multilevel fast multipole method to obtain full network induced voltage distribution, and establishes a quantitative relationship model between ground potential rise and core line induced voltage, so that the technical problems that cable core line induced voltage caused by transient ground potential rise is difficult to accurately predict and effectively suppress are solved.

This utility model discloses a circuit for preventing a 6kV vacuum contactor switch from erroneously closing automatically, relating to the field of safety protection technology for high-voltage electrical control equipment. It includes a main control circuit and a suppression circuit, both electrically connected to a control power supply and connected in parallel. The main control circuit includes an inductor L1 and a time relay KT1, both electrically connected to the control power supply and connected in parallel, and both connected in parallel with the suppression circuit. This utility model uses auxiliary contacts CH1 / CH3 to monitor the voltage status in real time, achieving millisecond-level rapid disconnection. Simultaneously, the time relay KT1 ensures complete release of electromagnetic energy, and capacitors C1 / C2 specifically absorb the energy coupled from the cable's distributed capacitance and inductance, thus constructing a triple protection system of electrical detection, timing control, and energy absorption.

The application provides a harmonic suppression circuit of an inductive coupling energy transmission system, which places an auxiliary receiving circuit with a resonance frequency of 3 times, 5 times, 7 times or 2n+1 (n=1, 2, 3…) times of a fundamental frequency on a secondary side, configures a corresponding voltage stabilizing circuit on a direct current voltage output side of the auxiliary receiving circuit, and realizes a self-power supply function of a power utilization device such as a control circuit on the secondary side, and a quality factor Q of the auxiliary receiving circuit is i The harmonic suppression method is simple, does not affect power transmission of a main circuit, and can improve the efficiency of the inductive coupling energy transmission system.

Systems and methods for coupling quantum modes using a linear inductive coupler are provided. The linear inductive coupler includes an inductor and two Josephson junctions having approximately equal Josephson energies, each coupled in parallel with the inductor. During operation, the linear inductive coupler is biased by a magnetic flux approximately equal to Φ0 / 2 such that a phase drop across each of the two Josephson junctions is approximately equal to π / 2. Driving the linear inductive coupler thereafter using at least one electromagnetic signal enables coupling between two quantum modes.

The invention discloses a differential derivative structure circuit based on three-coupling transformation and an amplifier, and relates to the technical field of amplification circuit design. The differential derivative structure circuit comprises a three-coupling inductance network and N output parts. Through a three-coupling transformation mode, power supply of a main amplifier tube and an auxiliary amplifier tube in a differential derivative structure formed by connecting MOS tubes in parallel is integrated into an inductance matching network, so that homologous coupling of the main amplifier tube and the auxiliary amplifier tube on a radio frequency signal path is realized, physical isolation and independent bias control are also realized on a direct current path, and the power supply efficiency is improved. Therefore, a resistor does not need to be used, excessive use of a capacitor is avoided, loss caused by self impedance of the capacitor and ground parasitic capacitance loss are reduced, gain is greatly improved, extra area occupation caused by the capacitor and the resistor is effectively inhibited, and thermal noise introduced by the resistor is eliminated by utilizing the characteristic of low impedance of inductive coupling. Therefore, post-stage noise is effectively suppressed, and the noise coefficient is reduced.

A module antenna for use with a battery cell in a battery pack is provided. The module antenna enabling wireless communication between an electronic device coupled to the battery cell and a bus antenna. The module antenna comprises: a transmission line operatively coupled to the electronic device at one end and to at least one antenna at its other end, the at least one antenna enabling electro-magnetic coupling with the bus antenna, the at least one antenna having a plurality of sections arranged in series forming an unbalanced electrical path and being coupled to a termination resistor at its distal end. The module antenna further comprises at least one capacitive element located between the transmission line and the termination resistor, the capacitive element and the at least one antenna having a resonant frequency matched to an operating frequency of a desired transmission signal.

The application belongs to the technical field of semiconductor packaging, and particularly relates to a sputtering system based on coil inductive coupling assistance. The sputtering system comprises a vacuum chamber, a substrate arranged in the vacuum chamber, four inclined circumferential plane magnetron targets arranged on the substrate in the vacuum chamber, and two cylindrical magnetron targets arranged at the central axis of the cavity of the vacuum chamber, and four induction coils are arranged in the cavity of the vacuum chamber to form an inductive coupling electric field with the cylindrical magnetron targets. The application improves the uniformity of the plane film thickness.

In a first communication apparatus, a transmission circuit including a transmitting coil performs wireless transmission to a second communication apparatus through inductive coupling between the transmitting coil of the first communication apparatus and a receiving coil of the second communication apparatus. A reception circuit including a receiving coil performs wireless reception from the second communication apparatus through inductive coupling between the receiving coil of the first communication apparatus and a transmitting coil of the second communication apparatus. A determination unit determines whether a collision occurred between wireless transmissions performed by a plurality of communication apparatuses, based on at least one of a frequency and a pulse width of a pulse sequence received via the reception circuit. In a case where the collision occurred, a control unit performs control to transmit a retransmission request to the second communication apparatus via the transmission circuit.

A system for monitoring an annulus in a well includes an inductive coupler. The inductive coupler includes a body, a power coil disposed around a first portion of the body, and a telemetry coil disposed around a second portion of the body separate from the first portion. A hole extends within the body, and a sensor is disposed in the hole.

The invention discloses a multi-level current source inverter and a control method thereof, and relates to the field of electric energy conversion control, the multi-level current source inverter is composed of an MCSI module, a direct current side inductor, a coupling capacitor, a ripple filter and a control module, and the three-phase voltage and the load current of a power grid are measured; calculating a reference phase under a synchronous rotating coordinate system by using a three-phase digital phase-locked loop, and further decomposing the reference phase into a current mean value and an alternating current component; a current error is obtained by establishing an additional control loop, and a DC component is separated from the current error by using a PI controller; generating a reference current under the synchronous rotating coordinate system, converting the reference current back to the three-phase coordinate system, and generating an actual gate driving signal of the MCSI module; based on an actual gate pole driving signal, the actual gate pole driving signal serves as a reference of phase shift carrier SPWM, and zero-state selection and inductive current balance are optimized in cooperation with a logic state machine. The method is used for power quality management of the power distribution network, harmonic waves and reactive power can be suppressed, and switching loss is reduced.

The invention discloses an impedance matching network, an impedance matching control system and an impedance matching method. An impedance matching network for a plasma process is described. The impedance matching network includes an input port connectable to the radio frequency generator module. The impedance matching network includes an output port connectable to a load. The impedance matching network includes a transmission circuit, wherein the transmission circuit connects the output port to the input port. The transmission circuit includes a first transmission line and a second transmission line, where the first transmission line is electrically connected to the input port, and where the second transmission line is electrically connected to the output port. The impedance matching network includes a first impedance matching module, wherein the first impedance matching module is configured to connect at least one reactance to the transmission circuit. The impedance matching network comprises a coupling element through which the first transmission line and the second transmission line are coupled to each other, and wherein the coupling element provides an inductive coupling between the first transmission line and the second transmission line.

A circuit board and an electronic device. The circuit board comprises a signal vertical interconnect structure group and a signal wire group; two signal vertical interconnect structures of the signal vertical interconnect structure group are respectively and electrically connected to two signal wires of the signal wire group, so as to construct a first signal path and a second signal path on which signals can be transmitted in the same direction; a first conductor portion on the first signal path is arranged adjacent to a second conductor portion on the second transmission path, the first conductor portion and the second conductor portion having opposite signal transmission directions, and being constructed as a crosstalk suppression structure. In this way, reverse mutual inductance can be formed on the basis of the first conductor portion and the second conductor portion. Compared with mutual inductance that generates crosstalk due to co-directional transmission between the first signal path and the second signal path, on the signal paths, the first conductor portion and the second conductor portion forming the reverse mutual inductance are constructed as the crosstalk suppression structure, such that the relative capacitive coupling and the relative inductive coupling of a full link can be adjusted, thereby effectively reducing full-link crosstalk and improving signal quality.

The invention discloses a pre-current-limiting hybrid direct current circuit breaker based on an inductive coupling principle and a control method. The pre-current-limiting hybrid direct current circuit breaker comprises a main branch and an auxiliary branch which are connected in parallel, the auxiliary branch comprises a bridge type reversing branch composed of thyristors and diode valve groups Q1-Q4, a current transfer branch, a bypass branch, a current limiting part, a self-charging part and an energy consumption branch are arranged in the bridge type reversing branch, and energy release branches composed of common mechanical switches and resistors are arranged at the two ends of a capacitor C1 and the two ends of a capacitor C2 respectively. The energy release branch is used for discharging the corresponding capacitor after the circuit breaker acts; the bypass branch, the current limiting part and the self-charging part are connected in parallel and then are connected in series with the energy consumption branch to form a series unit; the MMC flexible DC power grid circuit is small in on-state loss, low in cost, high in reliability, capable of being flexibly adapted to different abnormal scenes of a DC system, and suitable for the fields of MMC flexible DC power grids and the like.

Certain aspects of the present disclosure provide techniques for pre-distortion training feedback via inductive coupling. An example apparatus includes a receive path, a transmit path including an amplifier having a first output inductively coupled to the receive path, a memory, and a processor coupled to the memory. The processor is configured to cause the apparatus to obtain a first signal via inductive coupling of the receive path to the first output of the amplifier based on a second signal output by the amplifier, determine a parameter of a pre-distortion associated with the amplifier based at least in part on the first signal, pre-distort a third signal based at least in part on the parameter, amplify the pre-distorted third signal via the amplifier, and transmit the amplified third signal.

A device includes: a die substrate; a semiconductor device includes a die substrate, a plurality of interconnects over the die substrate, where the plurality of interconnects includes a first plurality of interconnects including a first plurality of via interconnects, where the first plurality of interconnects are configured as a first inductor, and a second plurality of interconnects including a second plurality of via interconnects, where the second plurality of interconnects are configured as a second inductor. And a second plurality of interconnects, the second plurality of interconnects including a second plurality of via interconnects, where the second plurality of interconnects is configured as a second inductor; wherein the first inductor and the second inductor are mutually wound; at least one magnetic layer surrounding at least a portion of the first plurality of via interconnects and at least a portion of the second plurality of via interconnects; and at least one dielectric layer, the at least one dielectric layer being over the die substrate.

An impedance matching network for plasma processes includes an input port being connectable to a radio frequency (RF) generator circuit, an output port being connectable to a load, and a transmission circuit. The transmission circuit connects the output port to the input port. The transmission circuit includes a first transmission line and a second transmission line, wherein the first transmission line is electrically connected to the input port, and wherein the second transmission line is electrically connected to the output port. The impedance matching network further includes a first impedance matching circuit configured to connect at least one reactance to the transmission circuit. The impedance matching network further includes a coupling element, wherein the first transmission line and the second transmission line are coupled to each other by the coupling element, and wherein the coupling element provides an inductive coupling between the first transmission line and the second transmission line.

The invention relates to the technical field of inductive coupling devices, and discloses an inductive coupling device for a cyclotron, and the inductive coupling device comprises an inner conductor and an outer conductor, the outer conductor sleeves the inner conductor, and a power feed-in end is formed at one end of the inner conductor; the coupling structure is connected with the inner conductor and the outer conductor; the separation structure sleeves the inner conductor and is connected between the inner conductor and the outer conductor; a shielding structure is formed on the end portion, deviating from the power feed-in end, of the inner conductor, and at least part of the separation structure is opposite to the shielding structure. Therefore, by arranging the shielding structure, the shielding structure can block electrons emitted by the high-voltage electrode of the cyclotron and reduce the risk that the electrons impact the separation structure, so that the risk that metallized coating is generated on the surface of the separation structure is reduced, the insulation performance of the separation structure is kept, and power feed-in of the cyclotron is kept; and the cracking risk of the separation structure due to overheating is reduced, so that the service life of the separation structure is prolonged.

A system and packaged integrated circuit device include first and second integrated circuit dies with first and second communication coils, respectively. The second die is positioned with respect to the first die such that the first communication coil is aligned with the second communication coil to allow inductive coupling between the first communication coil and the second communication coil. The system and device also include a molding compound structure positioned around a perimeter of the second die, and an insulating layer positioned between the first die and the second die, and positioned between the first die and the molding compound structure. A method of forming a device includes forming the molding compound structure on at least four sides of the second die, exposing a backside of the second die, and forming the insulating layer on the backside of the second die and the molding compound structure.

The application relates to the technical field of inductive coupling devices, and discloses an inductive coupling device for a cyclotron, which comprises an inner conductor and an outer conductor, the outer conductor is sleeved on the inner conductor, one end of the inner conductor is provided with a power feeding end, a coupling structure is connected with the inner conductor and the outer conductor, a separation structure is sleeved on the inner conductor and connected between the inner conductor and the outer conductor, and the end of the inner conductor, which is away from the power feeding end, is provided with a shielding structure, and at least part of the separation structure is opposite to the shielding structure. Thus, by arranging the shielding structure, the shielding structure can block the electrons emitted by the high-voltage electrode of the cyclotron, the risk of the electrons hitting the separation structure is reduced, the risk of the surface of the separation structure being plated with a metal film is reduced, the insulation performance of the separation structure is beneficially maintained, the power feeding of the cyclotron is beneficially maintained, the risk of the separation structure being broken due to overheating is reduced, and the service life of the separation structure is beneficially prolonged.

An inductive sensor for detecting a position. In one example, the sensor includes an oscillator circuit which generates an AC voltage signal and couples it into an exciter coil, and a pair of receiving coils including first and second receiving coils which each form a repeating loop structure and whose arrangement forms a receiving geometry. The exciter coil is arranged to induce a signal in each receiving coil based on the coupled AC voltage signal. An evaluation circuit outputs a sensor signal that depends on the position to be detected, based on the signals induced in the receiving coils, and a movable coupling element influences the strength of the inductive couplings between the exciter coil and the receiving coils as a function of the position to be detected. The receiving coils are located in a geometrical position having an intermediate space between them and are electrically connected to each other.

Method for operating a kitchen appliance (100), the kitchen appliance (100) having:a rectifier (1) for producing a DC voltage (UG) from a grid voltage (UN),a first inverter (2) which is powered by the DC voltage (UG) and which is designed to generate a first control signal (AS1) having a first frequency (f1),a first coil (3) which is controlled by means of the first control signal (AS1) and by means of which an alternating magnetic field is able to be generated for heating a cooking vessel (4) and / or for transferring energy in the direction of an electrical load (5) by means of inductive coupling,a second inverter (6) which is powered by the DC voltage (UG) and which is designed to generate a second control signal (AS2) having a second frequency (f2), anda second coil (7) which is controlled by means of the second control signal (AS2) and by means of which an alternating magnetic field is able to be generated for heating a cooking vessel (8) and / or for transferring energy in the direction of an electrical load (9) by means of inductive coupling,the method having the step of:controlling the first inverter (2) and the second inverter (6) in such a way that the first frequency (f1) and the second frequency (f2) are dependent on each other.

An aerosol generating device includes a heater including a coil and a susceptor, an alternating current detector configured to detect alternating current power caused by an inductive coupling phenomenon between the coil and the susceptor, a memory storing a look-up table including temperature matching data of the susceptor corresponding to the alternating current power, and a controller configured to calculate a temperature of the susceptor based on the alternating current power received from the alternating current detector and the look-up table.

Some embodiments include a high voltage waveform generator comprising: a generator inductor; a high voltage nanosecond pulser having one or more solid state switches electrically and / or inductively coupled with the generator inductor, the high voltage nanosecond pulser configured to produce a pulse burst having a burst period, the pulse burst comprising a plurality of pulses having different pulse widths; and a load electrically and / or inductively coupled with the high voltage nanosecond pulser, the generator inductor, and the generator capacitor, the voltage across the load having an output pulse with a pulse width substantially equal to the burst period and the voltage across the load varying in a manner that is substantially proportional with the pulse widths of the plurality of pulses.

The utility model provides an asymmetric half-bridge AC-DC single-stage converter, and relates to an isolation single-stage PFC technology in the field of power electronics / power conversion, and single-stage isolation conversion not only realizes power factor correction, but also stably adjusts DC output. The converter comprises a rectifier bridge, an asymmetric half bridge, a transformer, a rectifier circuit, an inductor La and a capacitor Cb, belongs to double-end conversion, and can transmit high power. The asymmetric half-bridge conversion can reduce the voltage stress of a switching tube, and asymmetric complementary PWM control is adopted to realize ZVS soft switching. And a variety of different rectification topologies can reduce or eliminate the bias current of the transformer and reduce the volume of the transformer. The voltage division rectification circuit and the multi-output rectification circuit comprise diodes D1 and D2, capacitors Co1 and Co2, and inductors Lo1, Lo2 or Lo, and diode reverse voltage division equalization and multi-voltage output are realized by utilizing inductive coupling or taps. The system is simple in topology, easy to control, low in cost and high in efficiency.

Techniques are provided for mediating interactions (e.g., long range interactions) between quantum bits to facilitate quantum computing operations such as two-qubit gate operations. A device comprises a first quantum bit, a second quantum bit, and a coupling bus connecting the first quantum bit and the second quantum bit. The coupling bus comprises a plurality of transmission line resonators which are coupled in series, and at least one tunable inductive coupler to control a coupling between a first transmission line resonator and a second transmission line resonator of the plurality of transmission line resonators.

A superconducting controller for superconducting quantum bits is used for implementing a high-fidelity quantum gate through magnetic flux driving. The controller comprises an inductor which forms an inductance loop and is used for being coupled with a low-mutual-inductance quantum bit inductor; and a pulse shaping circuit for applying a current pulse having a predetermined shape to the inductor. The pulse shaping circuit includes: a superconducting circuit for outputting a single flux quantum (SFQ) pulse; and a digital counting circuit for generating the shape of the current (flux) pulse by controlling the number of SFQ pulses applied to the inductive loop by incrementing or decrementing the current of the inductor by one SFQ pulse at a time.