1061 results about "Capacitive coupling" patented technology

The invention discloses an enclosure system of a low-temperature storage tank and transportation equipment, and relates to the technical field of fluid transportation, the enclosure system is installed on the inner wall of the low-temperature storage tank, the enclosure system comprises a plurality of heat insulation modules installed on the inner wall of the storage tank, the heat insulation modules are spliced and cover at least part of the inner wall of the storage tank, and the heat insulation modules are arranged on the inner wall of the storage tank; assembling grooves are formed in the splicing positions of the heat insulation modules; the bridging blocks are installed in the assembling grooves, and every two adjacent heat insulation modules can be connected together through the corresponding bridging blocks; the shielding module is connected with the heat insulation module, the shielding module comprises a first shielding layer, a second shielding layer and a third assembly plate, the first shielding layer and the second shielding layer are arranged in a spaced mode, and the third assembly plate is located between the first shielding layer and the second shielding layer. According to the invention, a better shielding effect can be realized by arranging two or more shielding layers, and the first shielding layer and the second shielding layer are arranged at intervals, so that the capacitive coupling effect between the shielding layers is reduced, and the penetrating power of electromagnetic waves is reduced.

Power converters including electronic-embedded transformers for current sharing and load-independent voltage gain are described. An example power converter system includes an input, an output, a power converter between the input and output, and a controller. The converter includes a first bridge, a second bridge, and an electronic-embedded transformer (EET) between the first and second bridge. The EET includes a capacitor and a capacitance coupling switch bridge. The controller generates phasing drive control signals for trapezoidal current modulation control of the capacitance coupling switch bridge of the EET. The controller is configured to generate the phasing drive control signals based on a phase shift coefficient, k, to set a duty cycle of a voltage from the capacitance coupling switch bridge. The controller is also configured to vary k from between 0 to 0.5 based on a load applied to the power converter system or other operating aspects of the power converter.

The invention provides a blade lightning protection channel online test method and system based on a pulse current method, and belongs to the technical field of blade lightning protection detection.The method comprises the steps that a pulse waveform is generated through a pulse current generator to simulate lightning impulse, and the lightning impulse is injected into the surface of a lightning arrester of a blade lightning protection system; measuring channel currents at different positions of the surface of the lightning arrester in the length direction by using a distributed sensor; a high-voltage differential probe is used for collecting and measuring the waveform of an incident wave and the waveform of a reflected wave of an injection point; detecting blade surface potential distribution by using a capacitive coupling sensor; comparing the waveform of the incident wave, the waveform of the reflected wave and the theoretical waveform, determining a time domain reflection coefficient and a frequency domain impedance spectrum, and determining a fault type; after the fault type is determined, the fault point is positioned based on the channel current and the blade surface potential distribution, the lightning impulse is simulated through the pulse waveform, the lightning protection channel is further tested, shutdown is not needed, the testing efficiency of the blade lightning protection channel is effectively improved, and the power generation efficiency is ensured.

According to the MTP device and the preparation method thereof, an MOS capacitor composed of a substrate, a gate oxide layer and a floating gate in a traditional MTP device is replaced with a capacitor located on the substrate and composed of the floating gate, an insulating layer and a conductive plug, so that the potential of the floating gate is controlled through capacitive coupling between the floating gate and the conductive plug; according to the MTP device disclosed by the invention, the capacitor is completely isolated from the substrate, so that the MTP device is not influenced by the potential of the substrate during programming and erasing operation, the operation range of the MTP device is further effectively expanded, namely the programming efficiency and the erasing efficiency of the MTP device are improved, and the reliability of the MTP device is improved. And meanwhile, higher capacitance coupling efficiency is realized in a smaller area, and the reduction of the chip area is facilitated.

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.

A pixel driving circuit and a driving method therefor, and a display panel and a display apparatus. The pixel driving circuit comprises a write-in transistor, a driving transistor, a storage capacitor, a coupling capacitor and a light-emitting unit, wherein one electrode of the storage capacitor and a gate electrode of the driving transistor are both electrically connected to a first node; and one electrode of the coupling capacitor is electrically connected to a control voltage end, and the other electrode thereof is electrically connected to the first node, and the coupling capacitor is configured to adjust the voltage of the first node in a light emission phase, such that the voltage of the first node is converted from a first voltage into a second voltage.

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.

An acoustic wave filter device with two-stage acoustic wave filters is provided. Each of the two stages includes a respective acoustic wave filter element. A first acoustic wave filter element (100a) includes a first input electrode (150a), a first output electrode (174a), and a first counter electrode (120a). The first input electrode and the first output electrode are located on a top surface of piezoelectric layer (650), and the first counter electrode is located on a bottom surface of the piezoelectric layer. A second acoustic wave filter element (100b) includes a second input electrode (154b), a second output electrode (174b), and a second counter electrode (120b). The second input electrode and the second output electrode are located on the top surface of the piezoelectric layer, and the second counter electrode is located on a bottom surface of the piezoelectric layer. The two acoustic wave filter elements are connected in series through a common floating electrode (602).

An electric machine comprises a stator, a rotor, an air gap between the stator and rotor (spacing them apart), and a shielding structure to reduce capacitive coupling between the stator and rotor. The shielding structure is coupled to a reference potential. Located within the air gap, the shielding structure comprises multiple conductors. Each conductor has a first section, the longitudinal extents of which extend transversely to the magnetic flux direction of the electric machine. Each conductor also has a second section, the longitudinal extents of which extend in a comb-like or meandering pattern, interlocked transversely to the magnetic flux direction and in a direction different from the longitudinal extents of the first sections.

Techniques for rejecting apparent (but false) touches caused by objects such as water droplets located in areas with parasitic capacitive paths to ground are disclosed. To minimize these false touches, one or more guard conductors can be located in proximity to the housing and driven with a stimulation signal to shield objects from being capacitively coupled to ground through the housing. In some examples images of touch can be obtained from a non-bootstrapped or bootstrapped scan and also an extended bootstrapped scan wherein the guard conductor is driven with a stimulation signal that has the same characteristics as the stimulation signal being applied to the sensed touch nodes. In some examples, the results of the extended bootstrapped scan can be subtracted from the non-bootstrapped or bootstrapped scan to identify and reject apparent touches resulting from capacitive coupling to ground.

The invention provides a shield gate trench MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) structure and a manufacturing method thereof, according to the manufacturing method, a field oxide layer is formed twice (a first oxide layer and a second oxide layer), a polycrystalline silicon interlayer is introduced between the first oxide layer and the second oxide layer, and the polycrystalline silicon interlayer is only reserved on a side wall opposite to a non-floating shield gate layer after being etched twice, so that the field oxide layer is formed in the first oxide layer and the second oxide layer; and a floating shield grid layer is formed. As the floating shield grid layer is introduced to the side wall opposite to the non-floating shield grid layer, the field intensity of the middle area in the depth direction of the groove can be increased, and the overall voltage endurance capability is improved. The floating shield gate layer is introduced into the shield gate trench MOSFET structure, so that the voltage withstanding level of a device can be improved, and the voltage withstanding level of the device can be improved by utilizing a capacitive coupling effect between a part of the floating shield gate layer and a part of the floating shield gate layer and a capacitive coupling effect between a source electrode and the drain electrode. Therefore, gate-drain capacitance and source-drain capacitance of the device can be reduced, and switching speed of the device is improved.

The invention discloses a cable local insulation defect live detection method based on capacitive coupling, and the method comprises the steps: firstly generating an initial signal, dividing the initial signal into an incident signal and a reference signal, transmitting the incident signal to a to-be-detected cable through an annular coupling capacitor, and receiving a reflected signal reflected by the to-be-detected cable through the annular coupling capacitor; performing frequency mixing on the reflection signal and the reference signal to obtain a frequency mixing signal, and obtaining the distance between the annular coupling capacitor and the cable insulation defect point according to the frequency mixing signal; the method can detect and position the defects of the to-be-detected cable, effectively avoids sudden power failure accidents, can detect and position the local insulation defects of the cable in a live operation state, does not need power failure, does not affect the power supply reliability, can carry out detection at any time, and is high in detection efficiency and high in reliability. The problem of low power failure cable detection efficiency in the prior art is effectively improved.

The invention discloses a feed network component, a phase shifter and an antenna device, which are used for solving the problem that the transmission efficiency is influenced by resonance formed in opposite areas of metal plates. The invention provides a feed network assembly, a feed network comprises a cavity and a transmission structure, the cavity comprises an accommodating cavity, and the accommodating cavity is used for accommodating the transmission structure; the cavity further comprises a first side wall, the first side wall comprises a first sub-side wall and a second sub-side wall which are oppositely arranged and capacitively coupled, and at least one of the first sub-side wall and the second sub-side wall which are oppositely arranged and capacitively coupled comprises at least one slot. According to the invention, the open grooves are formed in the first sub-side wall and the second sub-side wall which are oppositely arranged and are in capacitive coupling, so that the oppositely arranged areas are reduced, the resonance is reduced, and the transmission efficiency is improved.

The invention discloses a high-voltage cable partial discharge detection method and system and a medium, and relates to the technical field of electrical quantity detection. A capacitive coupling sensor and detection equipment are constructed based on high-voltage electrical equipment; injecting a first signal into the high-voltage cable through the capacitive coupling type sensor based on the detection equipment, and collecting a feedback signal; judging whether the high-voltage cable is subjected to partial discharge or not based on the feedback signal, and obtaining the discharge intensity when the partial discharge occurs; according to the scheme, the method and the structure are improved on the basis of an existing partial discharge detection technology, signals are injected by means of a capacitance coupling type sensor of a high-voltage live display device which is widely applied at present, and real-time live detection of high-voltage electrical equipment such as a switch cabinet, a ring main unit and a cable branch box is achieved. On-site detection work efficiency and detection precision are greatly improved, urgency and necessity of large-scale installation of intelligent online monitoring equipment are reduced at the same time, and maximization of operation and maintenance quality and efficiency of a power distribution equipment operation and maintenance overhaul technology is achieved.

The invention discloses a low-noise and high-precision analog front-end circuit for biological signal acquisition. The low-noise and high-precision analog front-end circuit comprises a chopping capacitance coupling type instrument amplifier circuit, a switched capacitor type programmable gain amplifier circuit and a Sigma-Delta analog-to-digital converter modulator circuit. T-type capacitance feedback, chopping modulation and programmable technologies are introduced on the basis of an existing amplifier, and the low-noise and programmable gain functions of the pre-amplifier are achieved. Through the three-order one-bit quantized feed-forward chopping type Sigma-Delta modulator, the signal to noise ratio and the effective bit number of the signal are improved. Compared with the prior art, the analog front-end circuit not only has the capability of changing the gain multiple according to the bio-electricity signal, but also has the low-noise and high-precision signal processing effect, and the problems that a traditional analog front-end circuit is large in noise and low in signal processing precision are solved. In addition, the biological signal acquisition-oriented circuit provided by the invention can also be used in other analog front ends, such as an audio processor and the like, and is wide in application range.

Embodiments described herein generally related to a substrate processing apparatus. In one embodiment, a process kit for a substrate processing chamber disclosed herein. The process kit includes an edge ring configured to circumscribe a substrate in the semiconductor processing chamber, at least one conductive pin electrically coupled to the edge ring, a sliding ring positioned beneath the edge ring and comprising at least one insert hole for receiving the at least one conductive, and an actuator operable to displace the sliding ring relative to the at least one conductive pin along a direction that changes an amount of capacitive coupling between the at least one conductive pin and the sliding ring.

The invention relates to an anti-radiation D flip-flop based on interconnection line crosstalk calculation. The anti-radiation D flip-flop comprises a cascade structure of a master latch module and a slave latch module, the primary latch module converts an input signal into a dual-node redundant signal through a first interconnection line crosstalk circuit (CC1), and logic storage of triggering high output only by dual high input is realized by capacitive coupling of L1-L3 and L2-L3; the slave latch module generates redundant signals L4 / L5 through a second interconnection line crosstalk circuit, and error correction is carried out on CC2 output and direct transmission signals in combination with a Muller C unit. The D flip-flop only needs 16 transistors with the minimum size, and the number of the transistors is reduced by 67% compared with that of a traditional TMR; asynchronous reset is supported, and the L3 / L6 is forced to be charged to a high level during reset; the capacitive coupling strength is controlled through metal layer wiring, and the reliability of a spaceflight electronic system in a radiation environment is remarkably improved.

The invention provides a vehicle electromagnetic compatibility radiation anti-interference test method and device, a vehicle and a medium, and relates to the field of vehicle testing, and the method comprises the steps: shielding a wire harness between a first domain controller and a second domain controller, and obtaining a wire harness shielding result; the shielding layer located at the first domain controller end or the shielding layer located at the second domain controller end is grounded, the shielding layer at the other domain controller end is suspended, and capacitive coupling is formed between the shielding layer and the ground plane; and carrying out electromagnetic compatibility radiation anti-interference test on the vehicle according to a wire harness shielding result and capacitive coupling. According to the invention, the wire harness between the first domain controller and the second domain controller is fully shielded, so that a high-frequency interference coupling path can be blocked; and the shielding layer of the first domain controller end or the second domain controller end is grounded, and then the shielding layer of the other domain controller end is suspended to form single-end grounding, so that high-frequency interference can be prevented from entering a communication link through wiring harness coupling.

The invention relates to the technical field of DRAM (Dynamic Random Access Memory) circuit design, in particular to a sense amplifier, a reading circuit and a module based on bit line switch and capacitance coupling. The invention discloses a DRAM (Dynamic Random Access Memory) sensitive amplifier based on bit line switch and capacitance coupling. The DRAM sensitive amplifier comprises nine NMOS (N-channel Metal Oxide Semiconductor) tubes N1-N9, two PMOS (P-channel Metal Oxide Semiconductor) tubes P1-P2 and two capacitors Cc1-Cc2. The SCSA is designed and matched with corresponding control logic, so that a pre-charging stage, an offset calibration stage, a charge sharing stage, a pre-induction stage and a main induction stage are designed when the SCSA reads a DRAM storage unit, the potential of a bit line BLT or BLB can be correctly changed, and the SCSA reading amplification function is guaranteed. Compared with a traditional DRAM sensitive amplifier, the SCSA provided by the invention has the advantages that the offset voltage index is greatly reduced under the condition that the number of elements is not greatly increased, and the sensing margin is effectively increased.

Described is a touch-sensitive apparatus for sensing the presence of an object relative to a touch-sensitive surface using capacitance measurements. The apparatus includes an electrode array comprising at least one electrode, the electrode array providing the touch-sensitive surface; a signal generating module for generating a time-varying drive signal to be applied to the electrode array; a differential amplifier comprising: a first input configured to receive a time-varying sensor signal from an electrode of the electrode array, the sensor signal indicative of a capacitive coupling associated with the at least one electrode; a second input configured to receive a time-varying reference signal; a first output configured to output a first output signal from the differential amplifier based on a difference between the time-varying sensor signal and the time-varying reference signal; and control circuitry configured to determine the presence of an object, wherein the apparatus further comprises a subtractor for subtracting a signal from the first output signal from the differential amplifier to generate a subtracted signal, wherein the control circuitry is configured to receive a signal based on the subtracted signal and to determine the presence of an object based on the received signal. Further disclosed is a method for sensing the presence of an object relative to a touch-sensitive surface using capacitance measurements of a touch sensitive apparatus.

Common mode voltage discharge shields are disposed over end turns of stator windings for a three phase electric traction motor within an electric vehicle. The common mode voltage discharge shields are capacitively coupled to the end turns to a ground strap, providing a low impedance path for common mode voltages accumulating at a neutral for electric traction motor as a result of high frequency switching of the motor drive voltage to produce desired torque. An insulating layer separates the common mode voltage discharge shields from the end turns. Accumulation of the common mode voltage in excess of a bearing breakdown voltage, and the associated potential for discharge through bearings between the stator and rotor and electrical discharge machining, is reduced or eliminated.

Systems and methods for touch sensing are provided. An input device includes a display and a touch sensor. The touch sensor has a sensing area with a plurality of sensor pixels forming rows and columns. Each sensor pixel includes a first electrode having first capacitive coupling areas and a second electrode having second capacitive coupling areas. The first capacitive coupling areas are configured to capacitively couple with one or more adjacent sensor pixels disposed in a same row and the second capacitive coupling areas are configured to capacitively couple with one or more adjacent sensor pixels in a same column. The first electrode is configured to electrically connect to one or more sensor pixels in the same column and the second electrode is configured to electrically connect to one or more sensor pixels in the same row. The sensor pixels are configured to facilitate parallel touch sensing in multiple orientations.

A superconducting quantum circuit apparatus includes a qubit; and a first wiring with a wiring used as a transmission of a signal to generate a magnetic flux to be applied to the qubit and a wiring used as a transmission of a signal input by capacitive coupling to and / or output, by capacitive coupling from the qubit, combined together thereinto, as a single wiring.

The invention provides a calculation error compensation test method and system based on a capacitive coupling storage and calculation integrated chip. The method comprises the steps of collecting manufacturing process deviation parameters of chips of a preset batch, processing to obtain process deviation errors, obtaining temperature factor parameters of the chips, processing to obtain temperature drift errors, obtaining overall errors of the chips, judging whether error compensation needs to be carried out on the chips or not, and if error compensation needs to be carried out, further judging a specific compensation mode. Comprising a classification compensation mode and an overall compensation mode, if the compensation mode is the classification compensation mode, corresponding compensation is performed on each error, and if the compensation mode is the overall compensation mode, overall compensation is performed on the chip, so that the calculation error compensation test technology based on the capacitance coupling storage and calculation integrated chip is realized.

The invention relates to the technical field of charging regulation and control, and discloses an energy storage charging strategy implementation method and system based on a super-capacity coupling lithium battery, and the method comprises the steps: collecting current and temperature data, and carrying out the preliminary analysis; establishing a temperature prediction model, and optimizing parameters of the temperature prediction model; calculating an accumulation item parameter of the temperature according to an accumulation effect of the temperature; and performing temperature monitoring and adjustment according to a prediction result, and dynamically adjusting a charging strategy. According to the method, a temperature prediction model is constructed, a nonlinear term and an integral term are utilized, so that the model can more accurately describe the trend that the temperature changes along with current, the battery temperature is monitored in real time according to a prediction result, a charging strategy is dynamically adjusted, and a charging method is optimized. When the temperature is close to the upper limit, overheating is avoided by reducing the charging current, so that the battery is protected, and the service life of the battery is prolonged.

Systems relating to antennas. Antenna elements are coupled to adjacent other antenna elements by way of a coupler. The coupled antenna elements may be part of the same antenna array. The coupler may take the form of a substrate with conductive traces and the antenna elements may be dipoles or crossed dipole antennas. The coupled antenna elements may have similar polarizations. The capacitive coupling allows for physically smaller reflectors for antenna arrays.

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.

The invention relates to the technical field of integrated circuits, in particular to a capacitive coupling type current steering digital-to-analog converter for transmitting switch control signals, which comprises a current steering unit and a switch signal control unit. The switching signal control unit comprises two capacitance coupling type level shifters; the current steering unit comprises a current source and transistors M1-M4, source electrodes of the transistors M1-M4 are connected with one end of the current source, and the other end of the current source is grounded; drain electrodes of the transistors M1-M2 are connected to form a positive output signal, and drain electrodes of the transistors M3-M4 are connected to form a negative output signal; the grid electrodes of the transistors M1-M2 are connected with a first capacitive coupling type level shifter, and the transistors M3-M4 are connected with a second capacitive coupling type level shifter; the on and off of the transistors M1-M4 are controlled through the two capacitance coupling type level shifters; the cross coupling unit is introduced to assist in transmitting switch control signals, and the dynamic performance of the digital-to-analog converter is improved.

Energy supply vehicle (20) for supplying an electrically powered motor vehicle with electrical energy, comprising a drive unit (22) for propelling the energy supply vehicle (20), an electrical energy source (24) for providing electrical energy to the electrically powered motor vehicle, and an electrical coupling device (26) for electrically coupling the electrical energy source (24) to the electrically powered motor vehicle in order to transfer the electrical energy from the electrical energy source (24) to the electrically powered motor vehicle. and with a control unit (28) comprising a communication device (30) which is designed to control the energy supply vehicle (20) as a self-driving and / or remotely controlled vehicle and to control the coupling device (26) for automatic electrical coupling of the electrically driven motor vehicle, characterized by the fact that the coupling device (26) is designed for capacitive coupling of the electrically powered motor vehicle, for the purpose of which the coupling device (26) as well as the electrically powered motor vehicle, which is to be supplied with electrical energy, each have a corresponding electrically conductive coupling surface in order to establish the capacitive coupling between the energy supply vehicle (20) and the electrically powered motor vehicle, wherein the corresponding coupling surface of the electrically powered motor vehicle is arranged on an outer side of the housing of the electrically powered motor vehicle.