106 results about "Coupling (electronics)" patented technology

The invention relates to the technical field of power electronics, in particular to a voltage ripple suppression and compensation method for a multi-output AC-DC switching power supply, and the method comprises the steps: obtaining the real-time voltage ripple signal of each AC-DC output channel and the working parameters of the switching power supply, and the working parameters comprise the switching frequency, the duty ratio, the inductance and capacitance parameters and the load current; inputting the real-time voltage ripple signal and the working parameters of the switching power supply into a preset coupling interference model, and generating ripple coupling characteristics between AC-DC output channels; determining a ripple suppression compensation coefficient through the ripple coupling characteristics; and based on the ripple suppression compensation coefficient and a preset PWM control signal, adjusting the output voltage of the switching power supply to suppress the ripple, thereby breaking through the limitation of a traditional method on independent processing of a single channel, and fundamentally solving the problem of a ripple suppression blind area caused by cross interference between channels.

The invention relates to an electronics module (102) for a ventricular assist device, wherein the ventricular assist device has a motor housing for accommodating a pump motor. The electronics module (102) comprises an electronics section (204) for accommodating at least one electronic component (206) and / or at least one electrically conductive contacting element (208), and a coupling section (202) designed as a joint between the motor housing (104) and the electronics section (204) or as a separate component to be joined, wherein the motor housing (104) and the electronics section (204) are combined or can be combined via the coupling section (202) with one another to form a fluid-tight module housing (104) to be arranged in a blood vessel.

The invention provides a wide-voltage self-adaptive closed-loop vector swimming pool pump anti-interference method, and relates to the technical field of motor control and power electronics, and the method comprises the steps: collecting three-phase power supply voltage fluctuation characteristic parameters and motor operation state parameters in real time; performing amplitude compensation and phase synchronization correction on the voltage parameter based on the dynamic voltage compensation factor; a closed-loop vector anti-interference control model is constructed, and model parameters are adjusted in real time through a vector immunity coefficient; dynamically correcting control output by adopting a multivariable feedback regulation mechanism; executing an anti-interference instruction and synchronously updating PWM modulation parameters, and verifying a control effect in combination with hardware-in-the-loop simulation; and parameter self-learning optimization is realized through a genetic algorithm. The dynamic anti-interference capability under power grid voltage fluctuation and harmonic interference is improved, intelligent thermal management is realized through a temperature-voltage-current multi-dimensional coupling model, full-life-cycle self-adaptive optimization of the system is guaranteed, and the problems of compensation lag, insufficient harmonic suppression and poor long-term stability are effectively solved.

Techniques for interfacing electronics are disclosed. A system-on-chip is accessed. The system-on-chip includes a network-on-chip (NoC) topology. The NoC sub-topologies are based on a physical location of the plurality of logic blocks. A first sub-topology is coupled to a receiving block, wherein the coupling includes inserting an interfacing block. The interfacing block includes a digital PLL (DPLL). The first sub-topology sends to the interfacing block data and a first clock. The first clock is input to the DPLL and used as a reference clock. The DPLL generates a second clock that is used to save the data that was sent. The interfacing block forwards to the receiving block the second clock and the data that was saved. The second clock is used as the internal clock in the receiving sub-topology. The NoC communications includes packets. Additional interfacing blocks are instantiated as necessary.

The utility model relates to the technical field of semiconductor detection, and aims to provide a two-dimensional semiconductor material impurity online detection system which comprises a main analysis target chamber and a sample replacement target chamber, the sample injection system comprises a magnetic coupling transmission rod connected with the sample change target chamber and a manipulator connected with the main analysis target chamber; the sample processing system comprises a laser annealing device and a sample rack positioned in the main analysis target chamber; the Ar + ion gun system is connected with the main analysis target chamber; the flight time detector is connected with the main analysis target chamber; the data acquisition system comprises a nuclear electronics system and is used for converting detected signals into electric signals and transmitting the electric signals to a computer. Through the cooperation of the main analysis target chamber, the sample changing target chamber, the sample injection system, the sample processing system, the Ar + ion gun system, the flight time detector and the nuclear electronics system, the dynamic data acquisition and analysis are realized, and the problem that the impurity H element of the two-dimensional semiconductor material cannot be nondestructively detected by the conventional surface analysis method is solved.

The invention discloses a high-sensitivity device and method for measuring high-temperature superconducting microwave surface resistance, and belongs to the technical field of electronics, the device comprises a test seat, a calibration seat, a calibration plate, a supporting plate and a sealing cavity, the test seat comprises a test cavity, a dielectric cylinder, an input coupling structure, an output coupling structure and a dielectric supporting device, the dielectric cylinder is a different-diameter coaxial cylinder and is divided into a supporting column and a resonance column, the supporting column is fixed to the testing cavity through a dielectric supporting device, the tail end face of the resonance column and the bottom end face of the testing cavity are located on the same plane, and the diameter of the supporting column is smaller than that of the resonance column. Therefore, the support column and the test cavity jointly form a cut-off waveguide relative to the required resonant frequency, so that the electromagnetic field is bound around the dielectric column, and the test sensitivity is improved. The invention further provides a double-sided cross test method capable of rapidly testing the microwave surface resistance of the front and back surfaces of the high-temperature superconductor sample to be tested, the system error can be remarkably reduced, and the accuracy and reliability of the test are ensured.

A coupling element and a power electronics device comprising the same are disclosed. A coupling element according to one aspect of the present disclosure is removably coupled to an external power electronics device and includes a coupling body and a coupling arm extending from one side of the coupling body with respect to a height direction and removably coupled to the power electronics device, wherein the coupling arm includes a coupling extension portion extending from one side of the coupling body into the interior of the power electronics device, and a coupling projection protruding from one end of the coupling extension portion and coupled to an inner surface of the power electronics device, and wherein the coupling arm is provided as a plurality of coupling arms, and the plurality of coupling arms are arranged to be spaced apart from each other in one direction.

The invention discloses a dual-active bridge converter control method and system based on double-layer weighted active disturbance rejection, and relates to the technical field of power electronics. The method comprises the following steps: constructing an input and output voltage dynamic model according to system characteristics of the dual-active bridge converter, and converting the input and output voltage dynamic model into a linear state space equation; constructing an energy function kinetic equation based on a transmission power balance relation according to the linear state space equation; constructing the energy function kinetic equation into a standard extended state-space equation according to an active-disturbance-rejection theory, and designing a double-layer observer according to the extended state-space equation; and according to the double-layer observer structure, a control law is constructed based on the state space model and the energy function, and the control law is used to solve the output voltage of the phase shift tracking dual-active bridge converter. According to the invention, quick response and high efficiency of the output voltage of the DAB converter can still be ensured under the coupling of noise and lumped interference.

The invention discloses a photovoltaic fault active compensation control system and method, and relates to the technical field of power electronics and new energy, and the system comprises a data collection module which is used for collecting a three-phase grid-connected current signal of a photovoltaic system at a common coupling point in real time; the fault feature extraction module is used for performing multi-scale decomposition and spatial-temporal feature fusion based on the three-phase grid-connected current signal to obtain a deep fusion feature; the quantization factor generation module is used for converting the deep fusion features into quantization factors representing fault dynamic influences; the active compensation control module is used for generating a compensation control instruction through a reinforcement learning algorithm according to the quantization factor and the power grid state information; and the compensation execution module is used for receiving and executing the compensation control instruction, driving the grid-connected inverter to inject compensation current and actively counteracting fault disturbance. And the stability and the electric energy quality of the high-proportion new energy power system are improved.

The utility model discloses an MOS tube hard switch control surge suppression circuit, which belongs to the technical field of power electronics, and comprises a control circuit, a drive circuit and a power switch circuit, the power switch circuit is composed of a high-power suppression resistor, a first MOS tube and a second MOS tube, the first MOS tube and the second MOS tube are connected in parallel, the source electrode of the MOS tube is connected with the positive electrode of the output power supply through the high-power suppression resistor, and the drain electrode of the MOS tube is connected with the negative electrode of the output power supply. Compared with the prior art, the control circuit of the circuit can automatically detect the voltage and change the conducting state of the triode based on the change of the voltage so as to control the on-off state of the MOS tube, when the voltage is too large, the high-power suppression resistor will intervene in the circuit to consume the voltage spike, it is ensured that the rear-end power supply voltage is stable, and the purpose of protecting rear-end equipment is achieved.

The system 10 comprises an electronics module 100 removably mechanically coupled to a 5 wearable article 200. The electronics module 100 forms a communicative connection with the wearable article 200 to receive measurement data from the wearable article 200. A processor analyses measurement data obtained when the electronics module 100 is mechanically coupled with the wearable article 200 to determine whether an anomaly condition is present. The anomaly condition is indicative of an anomaly in the communicative connection between the electronics module 100 and the wearable article 200. If the anomaly condition is present, the processor triggers the generation of a notification to prompt the user to adjust the mechanical coupling between the electronics module 100 and the wearable article 200 so as to adjust the communicative connection between the electronics module 100 and the wearable article 200.

The present invention discloses a fast adaptive filtering circuit device, belonging to the field of electronics, which includes a main branch and a coupling branch; the main branch includes a limiter, a microwave filter, a coupler, a microwave amplifier A, a main branch filtering network and a microwave amplifier B; the coupling branch includes a coupling branch filtering network and a detection circuit; the coupling branch filtering network is located between the main branch coupler and the detection circuit to realize signal screening for the radio frequency signal in the coupling branch; the detection circuit is located after the coupling branch filtering network, receives the strong signal output identified by the coupling branch filtering network, converts it into a detection voltage, compares it with the set external threshold voltage, issues a control signal, and distributes the control signal to the main branch filtering network in the main branch for filtering channel selection. The present invention can achieve fast suppression of strong interference signals, effectively improve the reception ability of narrow pulse signals, and further enhance the adaptability of ultra-wideband receivers to complex environments.

The application belongs to the technical field of microelectronics, discloses a micromechanical resonator and a preparation method thereof, and improves the Q value of the micromechanical resonator Q The application provides the micromechanical resonator, which comprises a resonant unit and a coupling block; the coupling block is used for realizing mechanical energy transmission between adjacent resonant units; at least one coupling block contained in the micromechanical resonator is provided with a thermal resistance enhancement structure; the thermal resistance enhancement structure is an etching groove formed in the coupling block, or the thermal resistance enhancement structure is composed of the etching groove formed in the coupling block and a low-thermal-conductivity material located in the etching groove; the thermal conductivity of the low-thermal-conductivity material is less than that of a main material of the coupling block. Q The application can effectively improve the Q value of the micromechanical resonator without affecting mechanical coupling between the resonant units.

The present disclosure provides a fluid detection system that includes a pipe coupling member having a perforated portion having one or more openings formed in the perforated portion. A conductive fluid sensor is disposed over the openings and an electronics module is configured to apply a charging voltage to the fluid sensor and measure a discharge time of a capacitance when fluid couples the fluid sensor to a pipe.

The invention relates to the technical field of vehicle electronics, in particular to a power line anti-interference method and system adopting a whole vehicle test speed regulation module, which completely reproduce the real wire harness impedance, grounding characteristics and system coupling environment through direct test on a whole vehicle, greatly improve the accuracy and reliability of the test result, and improve the reliability of the test result. The problem that the whole vehicle fails when the rack test is passed is effectively avoided; meanwhile, by synchronously monitoring multiple paths of signals, systematic cascading failures caused by power supply interference can be found and positioned, and real system-level electromagnetic compatibility evaluation is realized.

Disclosed is a system comprising an electronics module removably mechanically coupled to a wearable article. The electronics module forms a communicative connection with the wearable article to receive measurement data from the wearable article. A processor analyses measurement data obtained when the electronics module is mechanically coupled with the wearable article to determine whether an anomaly condition is present. The anomaly condition is indicative of an anomaly in the communicative connection between the electronics module and the wearable article. If the anomaly condition is present, the processor triggers the generation of a notification to prompt the user to adjust the mechanical coupling between the electronics module and the wearable article so as to adjust the communicative connection between the electronics module and the wearable article.

The invention relates to a rotating assembly for a rotor (1), comprising: - a rotor shaft (3) for rotationally fixed connection to a rotor body (2) of the rotor (1), - a secondary-side coupling device (13) for inductive coupling with a primary-side coupling device forming an inductive energy transfer device for energizing rotor windings, which has a secondary winding (14) permeable by a primary-side magnetic field and electronics (15) for rectifying the alternating current induced in the secondary winding (14) by the primary-side magnetic field, wherein the rotor shaft (3) is designed as a hollow shaft through which at least one cooling fluid flows, and the rotating assembly comprises a thermally conductive holding device (17) for holding the secondary-side coupling device (13), wherein the holding device (17) is arranged at least partially within the hollow shaft, so that, for active cooling of the secondary-side coupling device (13), at least the electronics (15) are arranged in a flow path of the at least one cooling fluid.and wherein the holding device (17) is designed to passively cool the secondary-side coupling device (13) even in the absence of at least one cooling fluid by dissipating the waste heat from the secondary-side coupling device (13) to the hollow shaft, and is mechanically connected for this purpose to an inner side (9) of a wall (4) of the hollow shaft.

This invention proposes a data-driven back-end parameter identification method for underwater wireless power transfer systems, belonging to the fields of wireless power transfer technology and power electronics technology. By employing a data-driven method based on the XGBoost data-driven algorithm, a nonlinear complex mapping model between voltage parameters and coupling parameters is established. At the back end, the multivariate parameters to be identified in the coupling mechanism are inverted based on the Buck input voltage. This method only requires DC voltage acquisition to achieve online identification of coupling parameters, eliminating the need for bilateral communication modules or high-frequency sampling modules, thus reducing hardware costs. It enables rapid identification of multivariate coupling parameters in underwater magnetically coupled wireless power supply systems, exhibiting better adaptability to marine environments. This method solves the problems of existing underwater wireless power transfer systems relying on complex analytical models and requiring bilateral communication and acquisition for parameter identification, while also addressing the difficulty of rapid online identification of coupling parameters in complex underwater environments such as seawater.

The utility model discloses a high-coupling structure of a single-path transformer, which belongs to the technical field of power electronics and is characterized in that primary windings and secondary windings of the transformer are wound by enameled wires or Litz wires in a layered manner, and in each layer, the primary windings and the secondary windings are respectively wound on a magnetic core; a primary winding wire coil and a secondary winding wire coil which are formed after coiling are closely adjacent to each other up and down; one or more copper ring sheets are arranged between the layers; the primary windings between the adjacent layers adopt a parallel structure, the secondary windings between the adjacent layers adopt a parallel structure, and the primary windings and the secondary windings between the adjacent layers are alternately stacked. Compared with the prior art, the primary and the secondary are crossed and stacked in the scheme, so that not only can full coupling be realized, but also the peripheral size can be remarkably reduced. In addition, the copper ring sheets are smaller in size and occupied space, so that the transformer is more compact, the primary and secondary coupling degree is improved, the copper strips have better heat dissipation performance, the secondary temperature rise of the transformer can be effectively reduced, and the transformer is very suitable for a narrow space.

The invention belongs to the field of semiconductor photoelectronics, and particularly relates to a broadband sub-wavelength 3D end-fire optical array structure based on positive and negative coupling, and the array structure comprises coordinates and planes: a right-hand rectangular coordinate system O-XYZ is established, the X axis is a light propagation main axis direction, and three planes perpendicular to the X axis are arranged on the X axis. Crosstalk generated by the positive coupling section can be reversely offset by the innovatively introduced negative coupling section, and the problem of near-field crosstalk between waveguides in a traditional high-density end-fire waveguide array is fundamentally solved. The beam directivity and phase consistency are guaranteed, the stability and reliability of the system are greatly improved, and the mechanism has theoretical expandability and is suitable for large-scale array expansion. By means of a three-dimensional positive and negative coupling waveguide array structure and an end-fire type output mode, the coupling behavior and the light beam convergence process are accurately regulated and controlled, and large-pitch-angle and large-azimuth-angle two-dimensional beam deflection is achieved.

A coupling tool (400) for coupling together an electronics unit and a base unit of a wearable device for continuous analyte monitoring, such as continuous glucose monitoring, includes a carrier (404) comprising a receiving feature and a carrier retention device (632) configured to retain an electronics unit in proximity to the receiving feature. The coupling tool also includes an activator (402) comprising a first component at least partially receivable in the receiving feature and a contact component (514) configured to release the electronics unit from the carrier retention device in response to movement of the activator relative to the carrier. The coupling tool is in a locked configuration when the carrier retention device (632) is configured to retain the electronics unit and in an unlocked configuration when the carrier retention device (632) is configured to release the electronics unit from the carrier retention device (632). Other embodiments and methods are also disclosed. Because the wearable device and associated electronics unit can be very small so as not to interfere with the movement of the user or annoy the user, the coupling tool (400) can facilitate manually coupling together the electronics unit and the base unit.

The invention discloses a direct current reactor and a frequency converter comprising the same, and belongs to the technical field of power electronics. The direct-current reactor comprises a magnetic core module, a sleeving framework, a winding, a support and a plugging assembly. The magnetic core module adopts a box-type integrated magnetic circuit and is composed of two middle blocks, four end side blocks, four side middle plates and two U-shaped blocks which are buckled up and down, so that a highly-symmetrical and closed double-magnetic loop is formed. The invention further provides and limits four collaborative optimization core design parameters, namely a winding coupling degree control parameter kappa, a magnetic circuit sectional area continuity ratio eta, a vertical heat dissipation path optimization ratio lambda and a structural rigidity and shielding parameter xi. Through the parametric design, collaborative optimization is achieved on a magnetic circuit, a thermal circuit and a mechanical structure, and the problems that an existing integrated direct-current reactor is large in size, poor in heat dissipation, poor in performance consistency and the like are effectively solved.

The invention provides a magnetic integrated matrix transformer suitable for a single-phase high-power CLLLC resonant converter, and belongs to the technical field of power electronics. The magnetic integrated matrix transformer comprises a magnetic core top plate, a magnetic core base and a PCB winding, the integrated structure comprises six magnetic cores which are all located on the magnetic core base, four magnetic cores are small circular rectangular winding magnetic columns, and two magnetic cores are large circular rectangular winding magnetic columns. The two small circular rectangular winding magnetic columns form an element transformer, namely an element 1 transformer and an element 3 transformer, the two large circular rectangular winding magnetic columns form an element transformer, namely an element 2 transformer, and primary and secondary side windings of each element transformer are unevenly wound on the upper and lower winding magnetic columns of each element transformer respectively; the coupling degree of the primary side winding and the secondary side winding is actively reduced, so that generated leakage inductance serves as resonant inductance of the primary side and the secondary side of the converter, and integration of a single-phase CLLLC converter transformer and a resonant inductor is achieved.

The present invention belongs to the field of power electronics technology and discloses a high-performance multi-channel output driving power supply and a low-coupling capacitance multi-channel transformer. The low-coupling capacitance multi-channel transformer comprises: a pair of magnetic cores, a group of primary windings and N groups of secondary windings, where N>2; wherein, a magnetic core comprises a primary magnetic column and N secondary magnetic columns, and the N secondary magnetic columns are evenly surrounded on a circumference with the primary magnetic column as the center; the primary winding is wound on the primary magnetic column, and the N groups of secondary windings are respectively wound on corresponding secondary magnetic columns; in this way, the primary-secondary coupling capacitance is effectively reduced to limit the common-mode current excited by the high-speed action of the switching device; based on the above-mentioned multi-output transformer, a high-performance multi-channel output driving power supply is also provided. By configuring a post-stage voltage regulation circuit in the driving power supply, the cross-regulation rate of the multi-channel output is effectively reduced, thereby ensuring the consistency and stability of the operation of the switching device in the power module.

A technique facilitates collecting data, related to a fracturing, run-in-hole, or pull-out-of hole operation. A frac plug is provided with electronics for obtaining the desired information related to the operation. For example, the frac plug may be constructed with electronic sensors, a digital storage device, and a power supply or other power related equipment. Depending on the application, the frac plug may be a composite frac plug, degradable frac plug, dummy frac plug, or other suitable frac plug. Retrieval of the information obtained may be done via coupling with an associated device, e.g. inductive or physical coupling, by utilizing a broadcast transmitter / receiver, by physical retrieval of the storage device, or by physical retrieval of the dummy frac plug.

The application discloses a kind of double DC bus power decoupling type hybrid power system structure, belong to the technical field of hybrid power system in power electronics and new energy technology.Existing technology, traditional structure exists steady power and fluctuation / pulse power coupling, super capacitor response speed is slow, battery has the problem of impact current.The application proposes a kind of double DC bus power decoupling type hybrid power system structure, the structure is provided with two DC buses, one is connected with battery and steady load, the other is connected with super capacitor and high fluctuation / pulse load, and two buses realize energy interflow and balance by bidirectional DC converter.Battery and super capacitor have independent voltage node, and steady power and fluctuation power are separated in space.Super capacitor is directly connected with fluctuation load without interface converter, and response speed is extremely fast.Only one bidirectional DC-DC converter can realize the collaborative operation control of hybrid power system, and hardware cost and control freedom are well balanced.

The present invention discloses a method and application for generating a frequency comb based on superstrong coupling of magnons and magnons, which belongs to the field of spin electronics technology. In a system of two superstrongly coupled magnons, when a pumping magnetic field with a frequency close to the frequency of the high-frequency branch magnon is applied, the system enters a nonlinear state. According to the amplitude of the pumping magnetic field, the system presents a frequency comb, period-doubling bifurcation and chaotic frequency comb. As the strength of the magnon-magnon coupling increases, the nonlinearity of the system is significantly enhanced, thereby reducing the demand for external power. Unlike traditional methods that rely on the weak nonlinearity of the material itself and require high power density to exceed the starting threshold, the superstrong coupling system provides an ideal platform for studying chaotic frequency combs. Chaotic systems have high sensitivity and noise resistance, and play an important role in signal detection. The present invention provides a new idea for the application of the magnon-magnon coupling mechanism in the fields of high-precision frequency measurement, information processing and sensitive detection.

This invention belongs to the field of automotive electronics reliability testing technology, and relates to a method and apparatus for accelerated life testing of controllers based on multi-stress coupling. The method includes: selecting an on-board electronic controller sample and performing performance testing; determining the core failure mechanism and stress limit boundary; constructing a multi-stress coupling life conversion model; designing a cyclic accelerated test profile; setting the test condition parameters of the on-board electronic controller sample; conducting accelerated life testing based on the cyclic accelerated test profile; determining the failure state of the on-board electronic controller sample according to multi-level failure criteria; solving the life conversion model using the failure data corresponding to the failure state; inputting the target operating condition parameters into the solved life conversion model; and calculating the corresponding actual service life according to a preset reliability target. This invention addresses industry pain points such as low life prediction accuracy, incomplete failure identification, and high verification costs for complex on-board electronic systems like smart cockpits throughout their entire lifecycle.

The invention relates to an unmanned aerial vehicle wireless charging anti-offset constant voltage output system based on a square composite coil, belongs to the technical field of power electronics, and aims to solve the problems that in an unmanned aerial vehicle wireless charging scene, due to position offset, the transmission efficiency is low, the output voltage is unstable, and the system light weight and anti-offset performance are difficult to cooperate. The system comprises a direct current input end, a high-frequency inverter circuit, an LCC compensation structure, a coupling coil, an S compensation structure and a load. The method comprises the steps of S1, innovative design of the magnetic coupling mechanism; s2, designing and optimizing a compensation topology; according to the design of the coupling mechanism, the optimal combination is screened out through orthogonal experiments, and the workload is greatly reduced. Self-inductance and mutual-inductance values of a coil are obtained through simulation in Ansys Maxwell, a system needs to achieve ZPA, parameters need to meet resonance conditions, compensation parameters can be obtained according to voltage gains, a simulation circuit is built in LTspice, and constant-voltage output and ZVS are achieved.

The application discloses a switching power supply protection control method and system, and relates to the technical field of power electronics. The method comprises the following steps: collecting a primary side current signal and preprocessing the same to obtain a current waveform purification data set; performing shape enhancement and joint time-frequency analysis on the current waveform purification data set to obtain time-domain shape features and frequency-domain energy features, and performing nonlinear fusion through feature coupling mapping to generate a current waveform multi-dimensional feature vector frame; performing a multi-stage energy release operation according to a residual energy state set to dynamically adjust a controlled energy release path; and when it is monitored again that residual energy parameters are released to a safety threshold and output voltage is stable, generating a switching power supply protection control report. Through the generation of the current waveform multi-dimensional feature vector frame, the application realizes the deep fusion and high-dimensional representation of the time-domain shape and frequency-domain energy features in the switching current waveform, and improves the integrity and separability of fault feature information.