350 results about "Capacitive coupling" patented technology

A system and method are used to maintain a variance in feedback factors of an amplifier between the first and second phases either below a threshold value or within a specified range. The system includes the amplifier and first through third capacitances. The amplifier is coupled between an input node and an output node that operates during first and second phases of operation. The first capacitance is coupled across the amplifier and between the input node and the output node during the first and second phases of operation. The second capacitance is coupled to the input node during the first phase of operation. The third capacitance is coupled to one of the input and output nodes during one or both of the first and second phases of operation.

The invention relates to the field of power equipment detection and intelligent robot control, and discloses an insulator zero value detection robot control method. The method comprises the following steps: deploying a rail-mounted robot on a power transmission line, and synchronously acquiring infrared thermal imaging, ultraviolet corona, capacitance coupling voltage and laser contour four-dimensional data; performing space-time alignment and multi-modal feature extraction on the multi-source information; generating an insulator unit-level health score through cross-modal attention fusion; and judging a zero-value fault according to the scoring threshold value and triggering a rechecking or confirming process. The system comprises a double-wheel clamping driving mechanism, a multi-source sensing array and a central controller. According to the invention, full-automatic, high-precision and high-safety detection in an electrified state is realized, and the recognition accuracy and the operation efficiency are remarkably improved.

Systems and techniques may generally be used for delivering pulsed electrostatic fields for therapeutic purposes. In one aspect, an electrostatic-field therapy apparatus may include a power source; a pulse-rate generator that may produce gating pulses; a solid-state switching stage with at least one transistor whose control terminal receives the gating pulses and whose conduction path periodically switches current from the power source; a step-up transformer whose primary winding couples to the switching stage and whose secondary winding may output high-potential pulses; an electrode coupled to the secondary winding; and a dielectric layer disposed over the electrode so that, when a body region is placed adjacent the dielectric layer, the high-potential pulses may be capacitively transferred through the dielectric as a therapeutic electrostatic field.

Disclosed is a novel dipole antenna design having symmetric poles, each pole having a half circle resonator and an oval resonator that are electrically connected by a straight choke section; the dipole shape permits a wideband dipole response with a transition frequency between a lower and upper frequency band. A cross bar and capacitively-coupled stubs tune at the transition frequency to create a continuous impedance and gain-bandwidth. The dipole and the crossbar and stubs are formed on opposite surface or sides of a substate. Data demonstrates the novel dipole antenna can exceed the gain-bandwidth of the state-of-the-art bowtie by approximately 5 times, that is, its gain-bandwidth is 10:1 versus the standard bowtie gain-bandwidth of 2:1 at broadside.

A programmable in-memory computing (IMC) accelerator for low-precision deep neural network inference, also referred to as PIMCA, is provided. Embodiments of the PIMCA integrate a large number of capacitive-coupling-based IMC static random-access memory (SRAM) macros and demonstrate large-scale integration of IMC SRAM macros. For example, a 28 nm prototype integrates 108 capacitive-coupling-based IMC SRAM macros of a total size of 3.4 megabytes (Mb), demonstrating one of the largest IMC hardware to date. In addition, a custom instruction set architecture (ISA) is developed featuring IMC and single-instruction-multiple-data (SIMD) functional units with hardware loop to support a range of deep neural network (DNN) layer types. The 28 nm prototype chip achieves a peak throughput of 4.9 tera operations per second (TOPS) and system-level peak energy-efficiency of 437 TOPS per watt (TOPS / W) at 40 megahertz (MHz) with a 1 volt (V) supply.

The invention provides a method for measuring impedance of a capacitively coupled plasma source, which comprises the following steps of: under the condition that plasma is not ignited, dividing a cavity into an upper part and a lower part along an electrical middle plane, and establishing an equivalent circuit model comprising five elements to be determined; three measurement ports are defined, five independent measurement boundary conditions are set, sweep frequency measurement is carried out by using a network analyzer, and multiple groups of Z parameter data are obtained; then, on each frequency point, joint fitting is carried out on a theoretical impedance expression of the equivalent circuit and actually measured data, and parameter values of all undetermined elements are solved; and finally, outputting a parameter curve of each element along with frequency change and a cavity equivalent impedance spectrum. According to the method, the problem that equivalent parameters cannot be identified is solved through multi-working-condition data redundancy, universal, accurate and reproducible measurement of the impedance of the pure cavity is realized, and a reliable quantitative basis is provided for matching network design, process window prediction and cavity optimization.

A magneto-electric dipole antenna array includes a substrate and at least one antenna unit. Each of the at least one antenna unit includes an electric-dipole component, a magnetic-dipole component, a first feeding probe, a second feeding probe and a stripline. The electric-dipole component is disposed on an upper surface of the substrate. The magnetic-dipole component is disposed in the substrate and between the upper surface and a lower surface of the substrate, and is electrically connected to the electric-dipole component. The first feeding probe is disposed on the upper surface of the substrate for vertical polarization. The second feeding probe is disposed in the substrate and between the upper surface and the lower surface of the substrate for horizontal polarization. The stripline is disposed in the substrate and between the first feeding probe and the second feeding probe for capacitive coupling.

The application discloses a quantum bit regulation circuit, a quantum chip and a quantum computer, and relates to the field of quantum chip control. Based on different frequency ranges, an external signal generator can output an electric signal including low-frequency control information and / or high-frequency control information to a control matching part through a first integrated control line by using only one control channel; the control matching part couples the electric signal including high-frequency control information with a cross capacitor to make the equivalent coupling capacitance value of the quantum bit equal to a target coupling capacitance value, and / or couples the electric signal including low-frequency control information with a superconducting quantum interference device to form a magnetic field to make the working frequency of the quantum bit equal to a target working frequency. In the case of only one control channel, the control matching part realizes the driving and frequency regulation of the quantum bit, reduces the control channel, provides convenience for the setting of a measurement and control channel, is beneficial to the wiring design and packaging of the quantum chip, and is beneficial to integrated design.

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.

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 invention belongs to the field of plasma devices, and particularly relates to an electrode assembly, a preparation method thereof, a capacitive coupling plasma discharge cavity and a plasma device. The electrode assembly comprises a heating disc, a supporting seat and an electrode, the supporting seat is vertically connected with the heating disc; the supporting seat is in a hollow tubular shape and comprises a tubular supporting seat base body and a first metal conductive layer covering the inner surface of the supporting seat base body. The supporting seat base body is made of a ceramic material; the electrode comprises a first part embedded in the heating disc and a second part located on the center shaft of the supporting base. Parasitic plasmas can be prevented from being generated in the vacuum cavity around the supporting seat, and the process stability is improved.

A device for monitoring spacecraft electric potential includes a first conductor configured to be in electrical communication with a conductive structure of a spacecraft, a second conductor capacitively coupled to the first conductor, a switch connected to the first conductor and the second conductor such that closure of the switch electrically ties the first conductor to the second conductor, and a monitoring circuit in electrical communication with the second conductor, the monitoring circuit being configured to detect an electric potential of the second conductor relative to the first conductor, the detected electric potential being indicative of a change in electric potential of the first conductor relative to the second conductor since an opening of the switch.

The invention relates to the field of integrated circuits, in particular to a K-band voltage-controlled oscillator based on a noise circulation structure, a phase-locked loop and a chip. The voltage-controlled oscillator comprises an oscillation circuit and a tuning circuit. The oscillating circuit comprises an upper resonant cavity formed by a basic oscillating circuit adopting a noise circulation structure and a lower resonant cavity formed by a noise suppression circuit adopting a Colpitts structure. The oscillating circuit adopts two groups of cross-coupled negative resistors, namely NMOS and PMOS, the cross-coupled negative resistors adopt a capacitance-coupled noise circulation structure, the PMOS adopts a Colpitts structure, and the cross-coupled negative resistors are connected through a tail inductor so as to improve phase noise and power consumption of the circuit. The tuning circuit adopts a variable capacitor which is connected to the oscillation circuit and is composed of a numerical control capacitor array and / or a self-adjusting capacitor circuit; and the capacitance value of the variable capacitor is adjusted to realize fine adjustment of the oscillation frequency. According to the invention, the problem that a traditional oscillator with a noise circulation structure is difficult to realize comprehensive optimization of phase noise and power consumption can be solved.

There is provided a device for acquiring biometric electrical signals comprising at least two electrodes. The device also comprises a current supply comprising a direct current supply, an alternating current supply, and a switch actuatable to switch selectively between the direct current supply and the alternating current supply. The device further comprises a capacitive coupling to couple each electrode to the current supply, a direct coupling to couple each electrode to the current supply, and a switch actuatable to switch selectively between the direct coupling and the capacitive coupling. The device also comprises a data acquisition module.

The present application belongs to the technical field of signal processing. Disclosed are a signal processing method and apparatus, and a device. The method comprises: using an encoding matrix to modulate driving signals sent in parallel by a plurality of TX electrodes, wherein the encoding matrix comprises a full-column-rank matrix of size M×N or a full-row-rank matrix of size N×M, M and N are both positive integers, and M＞N; and using a decoding matrix to decode sensed signals, wherein the decoding matrix is a generalized inverse matrix of the encoding matrix, the sensed signals are obtained by means of sensing by a plurality of RX electrodes, there is coupling capacitance between any RX electrode among the plurality of RX electrodes and each TX electrode among the plurality of TX electrodes, and the coupling capacitance is determined on the basis of the signals decoded by means of the decoding matrix. In the method, when a touch control panel uses a CDM driving mode, driving signals are modulated using a non-square encoding matrix, thereby increasing SNRs of sensed signals generated when the touch control panel uses the CDM driving mode.

A sensor system having a MEMS gyroscope is claimed, the sensor system comprising at least: - a seismic mass which can be excited to oscillate, the seismic mass having at least one electrode assembly for capacitively detecting a measurement signal, - a drive circuit for generating a drive voltage for exciting and maintaining a defined oscillatory motion of the seismic mass, wherein a parasitic capacitive coupling exists between the drive circuit and the at least one electrode assembly, - a detection circuit for reading the measurement signal and for generating a rotation rate signal on the basis of the measurement signal, characterized by circuit means for compensating for an offset of the rotation rate signal from the drive voltage.

This invention relates to the field of high-voltage voltage detection technology and discloses a split-type wireless high-voltage voltage detector with dual-mode applications for handheld and drone use. The detector adopts an upper and lower shell structure. The upper shell houses a metal probe, a high-voltage contact plate, and a battery limiting plate; the lower shell integrates a telescopic rod interface, strap lugs, a sensing plate, a lithium battery, and a circuit board, supporting handheld or drone mounting. The sensing plate senses the voltage of the high-voltage conductor based on the principle of capacitive coupling. The signal is processed and transmitted to the receiver via a LORA module, enabling remote voltage detection over distances of several kilometers. The circuit board includes a main control chip, a self-test circuit, a Type-C interface, charge / discharge management, DC-DC step-down, positive and negative voltage, and signal processing modules. The shell is filled with epoxy resin to enhance high-voltage insulation. This structure separates detection and display, combining safety with applicability to multiple scenarios.

Radio module (100, 150, 160, 200, 250, 300, 400, 600), which includes the following: a semiconductor package (102, 202, 402, 602) on which at least one chip (120, 208, 308, 404, 606) and a first coupling pad (124) are arranged, wherein the semiconductor package comprises a first dielectric material (108, 110, 112); and An antenna housing (126, 162, 220, 314, 406, 614) attached to a semiconductor package, comprising at least one radiative element (140, 224) and a second coupling pad (138, 166, 222, 318) communicatively coupled to the first coupling pad, wherein the at least one radiative element is designed to wirelessly transmit or receive a signal, wherein the antenna housing comprises a second dielectric material (132, 134, 164), wherein the first coupling pad is inductively or capacitively coupled to the second coupling pad, and wherein the radiative element is connected to the second coupling pad via an electrically conductive path.

A nerve electrostimulation system using capacitive coupling energy transmission, in-vivo nerve electrostimulator, and in-vitro energy controller thereof. The nerve electrostimulation system using capacitive coupling energy transmission includes an in-vivo nerve electrostimulator and an in-vitro energy controller, and may also include a program controller having an upper computer control APP. The in-vivo nerve electrostimulator includes at least one stimulator coupling capacitor pole, a stimulator compensation resonant network, a rectification circuit, a filter capacitor, a main control chip, a stimulator harmonic communication module, and a plurality of sets of stimulation electrodes and corresponding balance capacitors, wherein the stimulator coupling capacitor pole is coupled with an energy controller coupling capacitor pole of the in-vitro energy controller, thereby receiving electrical energy from the in-vitro energy controller and achieving information exchange. The nerve electrostimulation system using capacitive coupling energy transmission can increase the electrical power to be transmitted.

The invention discloses an adjustable MMIC band-pass filter based on a tap inductance technology. The adjustable MMIC band-pass filter comprises a radio frequency input end, a radio frequency output end, a low-pass filter circuit and an adjustable band-pass filter circuit, wherein the low-pass filter circuit and the adjustable band-pass filter circuit are connected between the radio frequency input end and the radio frequency output end in series; the low-pass filter circuit comprises first to third capacitors and an inductor; the adjustable band-pass filter circuit comprises a first network, a second network, a third network, a fourth network, a fifth adjustable capacitor and a sixth adjustable capacitor; one end of the inductor is connected with the radio frequency input end, and the other end of the inductor is coupled with the first network; the first network and the second network are coupled through a fifth adjustable capacitor, the second network and the third network are coupled through a tap inductor, the third network and the fourth network are coupled through a sixth adjustable capacitor, and the fourth network is connected with a radio frequency output end. Compact magnetic coupling is achieved through the tap inductance technology, insertion loss and the chip area are remarkably reduced, and meanwhile the wide tuning range and high harmonic suppression are achieved.

According to an aspect, a display device with a touch detection function includes: a substrate; a drive electrode that extends in a first direction; and a plurality of touch detection electrodes that are metal wirings extending in a second direction different from the first direction. The metal wirings are arranged with a predetermined pitch so as to make capacitive coupling with the drive electrode.

A radio frequency (RF) receiver assembly (100) for use in a magnetic resonance imaging (MRI) system is described. The receiver assembly (100) comprises a primary resonant circuit (101) coupled to a preamplifier (106) via capacitive coupling, and a secondary resonance circuit (104) comprising of at least one inductor (104a) coupled between a first switch (103) and the capacitive coupling. The first switch (103) is circuited between the primary (101) and the secondary (104) resonant circuits, and the preamplifier (106).

The utility model discloses a structure for enhancing capacitive coupling through hoisting, and belongs to the technical field of filters. A structure for enhancing capacitive coupling through hoisting comprises a cavity and further comprises an input connector and an output connector which are fixedly arranged on the outer wall of the same side of the cavity. The first arc-shaped stop block and the second arc-shaped stop block are fixedly arranged on the inner wall of the cavity, and the first arc-shaped stop block is fixedly connected to the inner wall of one side close to the input connector and the output connector; the cover plate is arranged on the cavity; the capacitor copper sheet is fixedly arranged on the inner surface of the cover plate, the capacitor copper sheet is arranged between the arc-shaped stop block I and the arc-shaped stop block II, and a non-metal supporting piece is arranged between the capacitor copper sheet and the inner surface of the cover plate; the capacitive coupling is enhanced on the premise of not changing the length of the original capacitor copper sheet, so that the harmonic wave and the frequency of the capacitor copper sheet do not influence the own passband, and the filter has the advantages of simple structure, easiness in implementation, easiness in size control, low cost, large adjustable range and the like.

The utility model discloses a high-voltage electric field energy taking device, and relates to the technical field of electric field energy taking, the high-voltage electric field energy taking device comprises an interdigital electrode array row, electrode outgoing lines and a product shell, the outer side of the interdigital electrode array row is provided with the electrode outgoing lines, and the bottoms of the interdigital electrode array row and the electrode outgoing lines are jointly provided with the product shell. According to the high-voltage electric field energy taking device, when the multiple groups of interdigital electrode main bodies are connected in series, the total length and the coverage area of the electrodes can be increased, so that the coupling effect with an external electric field is enhanced, the energy collecting efficiency is improved, and the serial interdigital electrode main bodies can increase the strength of output signals; according to the core principle of interdigital electrode electric field energy taking, electric field energy is converted into electric energy through the capacitance coupling effect by means of the potential difference generated between interdigital electrode bodies by an external electric field, and according to the design, the multiple interdigital electrode bodies are connected in series; the series design can significantly improve the energy collection efficiency and performance.

The invention provides a vertical embedded capacitive coupling type wireless power transmission system, which comprises a direct-current voltage power supply, a full-bridge inverter circuit module, a resonant inductor, a resonant capacitor, a coupler transmitting end, a coupler receiving end, a rectifying circuit module and a filter capacitor, according to the invention, a vertical embedded structure is adopted, the transmitting end and the receiving end of the coupler are respectively embedded into the charging device and the underwater to-be-charged equipment, no extra space is occupied, the size is reduced by more than 30% compared with a traditional PCC structure, and the space requirement of small underwater equipment is met; according to the invention, a vertical alignment design is adopted to reduce the polar plate dislocation influence caused by water disturbance, and a self-coupling path can be ignored and only needs to be matched with mutual coupling parameters by combining an air filling medium and a design of autonomously isolating seawater by equipment, so that the system detuning rate is reduced to below 5%, and the output voltage change rate is only 5%; the change of capacitive coupling is stabilized, the misalignment capability of the receiving pole plate is remarkably reduced, and the system volume is reduced in space structure.

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 application provides a slope detection circuit with programmable blanking function and a switching power supply system, comprising: a slope generator generating an initial blanking slope signal; a programmable module and an amplitude modulation circuit connected to the slope generator respectively, used for adjusting the blanking slope falling time and amplitude of the blanking slope signal respectively, forming a required slope DC voltage signal; a capacitive coupling differential circuit used for sampling the voltage change slope of the SENSE terminal and outputting a sampling voltage positively correlated with the voltage change slope of the SENSE terminal; a comparison circuit receiving the voltage after the superposition of the sampling voltage and the slope DC voltage signal, and comparing the superposed voltage with the first threshold voltage and the second threshold voltage set internally respectively, so as to judge whether the voltage change slope of the SENSE terminal reaches the expectation, and complete the slope detection. The circuit structure of the application is simple, can realize the slope detection and resonance valley bottom detection function, and realize the anti-misoperation opening function applied in the synchronous rectification control DCM mode.

The application provides a circuit board and a design method. The circuit board comprises a conductive layer and an insulating layer. The conductive layer and the insulating layer are arranged in an alternating stacked manner. At least two layers of the conductive layer are signal layers, and at least one layer is a ground layer. Signal transmission is achieved through non-through vias between the signal layers. The opposite ends of the non-through vias are both provided with pads, and the pads are electrically connected to the signal layers. The ground layer is an adjacent layer of the end pads of the non-through vias. A ground avoidance area is arranged on the ground layer in a region opposite to the pads along the stacking direction of the circuit board, so as to increase the spacing between the pads and the ground layer and reduce the capacitive coupling between the pads and the ground layer. In this way, by arranging the ground avoidance area on the ground layer adjacent to the pads, the impedance continuity required for high-speed signal transmission is achieved through a simple and low-cost structural design, and the design requirements of a high-density circuit board can be met.

A device for interacting with a quantity of a sample, the device, comprising: a substrate comprising a first surface and a second surface, wherein the first surface is opposite to the second surface; an electrically-thin conductive layer disposed on the first surface of the substrate and configured to contact a first portion of the sample; a buried electrode disposed on the second surface of the substrate, the buried electrode being capacitively coupled with the electrically-thin conductive layer; and at least one electrode in contact with a second portion of the sample, wherein the second portion of the sample is remote from the first portion of the sample, and further wherein the at least one electrode and the electrically-thin conductive layer electrically interact via the sample; wherein the substrate is configured such that the substrate does not substantially conduct the flow of electric current through the electrically-thin conductive layer.

A power converter includes a transformer, a resonant circuit, a switch circuit, a resonant adjustment circuit, and a controller. The transformer includes a primary-side winding, a secondary-side winding, and a magnetizing inductance. The resonant circuit includes a first resonant capacitor, and the switch circuit includes a first switch and a second switch. The resonant adjustment circuit is coupled to the first resonant capacitor, and the controller is coupled to the resonant adjustment circuit. The controller controls the resonant adjustment circuit to adjust a resonant current flowing through the first resonant capacitor according to an output voltage of the power converter so as to adjust a current value that when the resonant current and a magnetizing current flowing through the magnetizing inductance intersect to be substantially equal to a predetermined value.