556 results about "External circuit" patented technology

The present application provides a sound production apparatus and an electronic device. The sound production apparatus comprises a housing, a magnetic circuit assembly, a vibration assembly, and a spider. The magnetic circuit assembly has a first magnetic gap and a second magnetic gap. The vibration assembly comprises a diaphragm component and a voice coil component. The voice coil component comprises a first voice coil disposed corresponding to the first magnetic gap and a second voice coil disposed corresponding to the second magnetic gap. The spider is electrically connected to the voice coil component and an external circuit. The spider comprises a connection arm, a bent arm, and a vibration arm connected in sequence. The connection arm is disposed on the diaphragm component and is electrically connected to the first voice coil and the second voice coil. The vibration arm extends in a bent shape. The bent arm is connected between the connection arm and the vibration arm, and the bent arm extends from an inner end of the vibration arm along a vibration direction of the vibration assembly and is connected to the connection arm. This configuration improves the magnetic field strength of the magnetic circuit assembly, thereby increasing the BL value of the sound production apparatus and ensuring the acoustic performance of the sound production apparatus.

The invention discloses a non-selective membrane mixing system for solar seawater desalination and all-weather salinity difference energy collection. The non-selective membrane mixing system comprises a chamber for accommodating seawater; the salinity gradient energy power generation module is arranged at the bottom of the chamber and comprises a cation electrode and an anion electrode which are connected through an external circuit, and the cation electrode and the anion electrode are immersed in the seawater in the chamber; the salinity gradient energy generation module comprises an evaporator and a condensation cover, the evaporator floats in the seawater in the cavity, and the condensation cover is located at the top of the cavity; wherein no ion selective membrane is arranged between the cation electrode and the anion electrode. According to the system, photo-thermal evaporation fresh water production and salinity gradient energy power generation / energy storage processes are coupled, and membrane-free all-weather salinity gradient energy collection is realized.

The invention relates to the technical field of semiconductor device design and simulation, in particular to a multi-physics-field coupled photoelectric detector modeling method and system, and the method comprises the steps: calculating the spatial distribution of the carrier generation rate, the carrier recombination rate, the potential, the distribution of electron concentration and hole concentration, and heat effect feedback data of a surface incidence semiconductor photoelectric detector; calculating the current density distribution of the target surface incident semiconductor photoelectric detector under the dynamic input optical power; based on an automatic differential Newton iteration method, a multi-physics field coupling equation set is solved according to spatial distribution of a carrier generation rate, current density distribution, a carrier recombination rate, potential, distribution of electron concentration and hole concentration and heat effect feedback data; and establishing an equivalent circuit model of the surface incidence semiconductor photoelectric detector, and carrying out co-simulation with an external circuit. Therefore, the problems of insufficient physical field coupling, poor numerical stability, low calculation efficiency, inaccurate simulation and the like in a traditional photoelectric detector simulation method are solved.

The utility model discloses a sound production device and electronic equipment. The sound production device comprises a shell, a magnetic circuit system, a vibration system and a conductive piece, the magnetic circuit system is connected to the inner side of the shell; the vibration system comprises a first vibrating diaphragm and a second vibrating diaphragm which are respectively positioned on two opposite sides of the magnetic circuit system, and a first voice coil and a second voice coil which are respectively connected with the first vibrating diaphragm and the second vibrating diaphragm; the conductive part is arranged on the shell and provided with a first bonding pad, a second bonding pad and an outer conductive part, the first bonding pad and the second bonding pad are arranged in the first direction and are close to the first vibrating diaphragm and the second vibrating diaphragm respectively, the first direction is the vibration direction of the vibration system, and the second direction is the vibration direction of the vibration system; the first voice coil and the second voice coil are electrically connected with the first bonding pad and the second bonding pad respectively, and the outer conductive part is exposed out of the side surface of the shell and electrically connected with an external circuit. According to the sound production device provided by the invention, the number of the outer conductive parts outside the shell is reduced, the assembly space of the whole machine is saved, and the miniaturization design of a product is facilitated.

The invention discloses a low-loss high-frequency transformer based on nanocrystalline alloy, and belongs to the technical field of transformers, the low-loss high-frequency transformer comprises a mounting plate, an n-shaped framework, a columnar magnetic core, a winding and a protective heat dissipation mechanism, the columnar magnetic core is of a three-column type composite structure and is formed by staggering and laminating nanocrystalline thin film layers and ferrite sheet layers, a stepped air gap structure and an insulating isolation layer are arranged on the outer surface; and the winding leading-out end is connected with an external circuit through symmetrically distributed plug connectors. The protective heat dissipation mechanism is composed of an epoxy layer containing boron nitride filler, a heat conduction ring, heat dissipation fins, a heat dissipation fan and a flow guide plate. The advantages of nanocrystalline and ferrite materials are combined, a composite heat dissipation system is matched, the magnetic core loss under the high-frequency working condition is remarkably reduced, temperature rise is effectively controlled, the insulation performance and assembly stability are improved, low-loss, high-efficiency and high-stability operation is achieved, and the requirements of the fields of new energy automobiles, photovoltaic energy storage and the like are met.

The application provides a temperature self-compensation strain sensor sensitive layer composite material and a preparation method thereof, and belongs to the technical field of functional materials. The composite material is prepared from raw materials including the following mass percentages: metal nanoparticles 25-35%, insulating oxide nanoparticles 2-3%, dispersing agent 0.1-0.5%, and the balance solvent; the metal nanoparticles have a positive temperature coefficient of resistance; and the insulating oxide nanoparticles include aluminum oxide nanoparticles, silicon oxide nanoparticles, zirconium oxide nanoparticles or chromium oxide nanoparticles. The composite material provided by the application can be used as a sensitive layer of a temperature self-compensation strain sensor, can avoid strain signal disturbance caused by environmental temperature changes, can make the strain sensor have a temperature self-compensation function, and can further simplify the system of the strain sensor without using an external circuit and without changing the size and structure of the strain sensor.

This breaker (100) is provided with: a first terminal piece (1) that is connected to an external circuit; a second terminal piece (2) that has a fixed contact (21); a movable piece (4) that has an elastic part (43) and a movable contact (41), is connected to the first terminal piece (1), and presses the movable contact (41) to bring the movable contact (41) into contact with the fixed contact (21); a thermally-actuated element (5) that is in contact with the movable piece (4) and deforms as the temperature changes, thereby causing the movable piece (4) to transition from a conductive state to a cut-off state; and a resin base (7) for accommodating the first terminal piece (1), the second terminal piece (2), the movable piece (4), and the thermally-actuated element (5). The breaker (100) further includes a heat detection terminal (6) that protrudes from the bottom surface of the resin base (7), receives heat from the outside of the resin base (7), and transmits the heat to the thermally-actuated element (5).

The invention belongs to the technical field of wastewater treatment and energy recovery, and particularly relates to a self-driven electro-catalysis system for activating persulfate to degrade antibiotics and application of the self-driven electro-catalysis system. The invention provides a self-driven electro-catalysis system for activating persulfate to degrade antibiotics. The self-driven electro-catalysis system comprises a reaction unit, an electrolyte and an external circuit wire, the reaction unit comprises a cobalt sheet anode and a carbon rod cathode; the external circuit lead is used for connecting the cobalt sheet anode and the carbon rod cathode; and an electrolyte in the electrolyte solution comprises Na2SO4. According to the self-driven electro-catalysis system, in a wastewater solution containing antibiotics, persulfate and supporting electrolyte, an external power source is not needed, spontaneous electron transmission is formed through the potential difference of the cobalt sheet anode and the carbon rod cathode, and self-driven PMS activation and antibiotic pollutant degradation are achieved.

The invention discloses a multi-color micro-display unit assembly and a micro-display optical machine, and relates to the technical field of micro-display.The multi-color micro-display unit assembly comprises a circuit board, a first-color micro-display unit, a second-color micro-display unit, a third-color micro-display unit and a connector, and the first-color micro-display unit, the second-color micro-display unit, the third-color micro-display unit and the connector are all connected to the circuit board; therefore, the relative positions and angles of the first-color micro-display unit, the second-color micro-display unit and the third-color micro-display unit can be adjusted, the multi-color micro-display unit assembly can be conveniently assembled with the light combination assembly, and the multi-color micro-display unit assembly only needs to be provided with one connector to be connected with an external circuit, so that the multi-color micro-display unit assembly can be conveniently assembled with the light combination assembly. According to the multi-color micro-display unit assembly, each micro-display unit does not need to be independently provided with a connector, the structure is more simplified, the size of the multi-color micro-display unit assembly can be made smaller, and then the installation space needing to be occupied is reduced.

The present embodiments provide a battery cooling system with a configurable number of frames disposed between end plates that allows a coolant to flow between the battery cooling system to control a temperature of battery cells disposed in the battery cooling system. The end plates disposed on opposing ends of the system can include manifolds that allow the coolant to move through the end plates. Further, each frame can include a number of subframes to retain battery cells and allow the coolant to flow adjacent to the battery cells. A wet bus can be disposed in the frame and a dry bus disposed on an exterior of the frame can electrically connect the battery cells to exterior circuitry.

A power supply circuit and a power supply device, and the power supply circuit includes a bridge switching circuit, a transformer, a resonant circuit, a rectifier circuit. The bridge switching circuit, the transformer, the resonant circuit, and the rectifier circuit are sequentially connected in series. The resonant circuit includes an induction coil connected in series between the transformer and the rectifier circuit. In the case that the inductive coil is connected in series in the circuit, the inductive coil can participate in conductive charging as an inductor in the resonant circuit. Further, the inductive coil can also receive the inductive voltage wirelessly transmitted by the external circuit through electromagnetic induction, and the inductive voltage can be transmitted to the load through the rectifier circuit to achieve inductive charging.

This disclosure relates to a touch sensor, display device, touch apparatus, and touch system. The touch sensor includes: a plurality of touch electrodes for sensing touch signals; a control circuit electrically connected to a first terminal of each touch electrode; and a plurality of switching units, each switching unit electrically connected between the second terminals of two touch electrodes; wherein a sensing loop is formed between the conducting switching unit, the two electrically connected touch electrodes, and the control circuit. Due to the simple structure of the switching unit, the complexity of the touch sensor structure is reduced by replacing the external circuitry with the switching unit to form the sensing loop.

An energy storage dielectric capacitor disclosed by the present invention comprises an explosion-proof assembly, the explosion-proof assembly comprises a first pressure relief hole formed in a cover body and a cover body covering the top end of the cover body, the cover body is provided with a plurality of second pressure relief holes, the second pressure relief holes and the first pressure relief hole form a pressure relief channel communicating the interior of a shell with the outside, and a core is electrically connected with a first conductive column. The end, away from the core, of the first conductive column extends into the first pressure relief hole, the terminal is fixedly connected with a second conductive column, and the end, away from the terminal, of the second conductive column is located on the inner side of the cover body and provided with a metal conduction block. The explosion-proof assembly with a linkage function is integrated on the cover body, in a normal working state, the movable part of the metal conduction block abuts against the first conductive column under the action of pre-tightening force, normal operation of the capacitor is guaranteed, when the pressure in the shell is abnormally increased due to a fault, internal air pressure directly acts on the movable part, and the safety of the capacitor is guaranteed. And the electrical connection between the core and the external circuit is immediately disconnected, thereby preventing continuous input of fault current from aggravating thermal runaway.

The invention discloses a stacked quantum chip supporting structure. The stacked quantum chip supporting structure comprises a first chip and a second chip, a cut-off layer is arranged on the end face between the first chip and the second chip, the cut-off layer is provided with multiple sets of limiting columns, and the first chip and the one or more second chips are aligned and bonded through the limiting columns to form a multi-layer stacked structure. According to the invention, a plurality of groups of limiting columns are arranged at the corresponding positions of one or more cut-off layers between the chips, so that the stress can be better balanced without influencing the wiring of the chips, the stress is more uniform and the chips are not deformed when the chips are subjected to flip-chip bonding or stacking design, and the sizes of the gaps between the chips can be determined by controlling the heights of the limiting columns, so that the yield of the chips is improved. Gaps and design are ensured to be consistent, and the problems of inclination, collapse and the like after multiple layers of chips are stacked are effectively solved; in addition, a lantern ring structure is formed by mutually embedding and connecting the coating cavities, so that the supporting stability is further improved, interconnected metal can be effectively prevented from overflowing to influence an external circuit structure, and the gap distance between the chips can be accurately controlled.

The application relates to the field of electronic connection devices, in particular to a connector, a detachable connector and a data line. The connector comprises an adapter, a circuit board, a connector body and a charging chip. The adapter and the connector body are electrically connected through the circuit board. The adapter comprises a first interface for electrical connection with an external circuit, the connector body comprises a second interface for electrical connection with an electronic device, and the charging chip is arranged on the circuit board. The detachable connector and the data line both comprise the connector. The connector can also be adapted to a corresponding charging protocol, so that the power of the connector part can also reach the set power of the charging protocol during the charging process. On this basis, as long as the wire of the wire end can meet the corresponding power requirement, the charging can be carried out according to the design power of the corresponding charging protocol.

The application provides a kind of vehicle lamp intelligent control system with functional safety design, including communication module, main control module, execution module, detection module and power module.For main control module, monitor whether main control information processing fails, does not control vehicle lamp work correctly, if yes, reset control is carried out to external circuit;For communication module, monitor whether communication failure occurs according to communication response mechanism, remind driver of failure cause after monitoring communication failure;For power module, monitor power module output voltage, software and hardware failure, reset processing is carried out to power chip and MCU when failure occurs;For detection module, monitor whether execution module lights corresponding lamp according to requirements, if execution module does not light lamp as required, pass this information to main control module, remind driver of failure cause.The application can reduce system failure and random failure risk, the whole system is more reliable, and driver, passenger and road related personnel are safer.

According to various aspects, an electronic circuit (100) is provided, wherein the electronic circuit (100) comprises: an input interface (104) and an output interface (106) for coupling to an external circuit (160); and a trained artificial neural network (102) designed to: receive one or more input signals (110, 112) which represent one or more operating parameters (120) of the external circuit (160) at a predefined point in time within a first cycle of a duty cycle signal; determine a duty cycle (122) to be used in a second cycle of the duty cycle signal after the first cycle; and provide an output signal (114, 116) to the external circuit (160) which represents the determined duty cycle.

The invention relates to the technical field of water pump equipment, and discloses an integrated permanent magnet variable frequency submersible pump which comprises a machine shell and an integrated box, the integrated box is arranged at the top end of the machine shell, a motor is mounted in the machine shell, and mounting feet are fixed to the two sides of the top end and the bottom end of the integrated box correspondingly; a first mounting plate is transversely fixed to the bottom of the interior of the integration box. In the installation and use process of the integrated permanent magnet variable-frequency submersible pump, the outer side power supply circuit breaker and the control component frequency converter are integrally installed on the inner side of the integrated box in a unified mode, and when the submersible pump is carried and used, the circuit breaker in the filter cover is connected to an external circuit, and a wire harness of the frequency converter is connected to the motor. Line layout of the submersible pump can be rapidly completed by means of the integrated assembly, the convenience of installation and use of the submersible pump is improved, the integrated assembly facilitates later overhaul and maintenance, and the problem that integrated installation of components of a submersible pump system is inconvenient is solved.

The thermocouple temperature measuring device comprises a positive thermocouple wire, a negative thermocouple wire, a first protective tube and a wire connector, the positive thermo wire and the negative thermo wire are arranged in the first protective tube; one end of the positive thermo wire and one end of the negative thermo wire are connected to the wire connector, and the wire connector is used for connecting the positive thermo wire and the negative thermo wire to an external circuit; the other end of the positive thermo wire is connected with the other end of the negative thermo wire to form a combination end, and the combination end is coated with a high-temperature insulating layer. The thermocouple can replace a sheathed thermocouple, the detection cost is reduced, the risk of contact conduction with a furnace wire can be reduced, the safety can be improved, and the service life can be prolonged.

The invention relates to a leading-out sheet of a relay, a contact assembly and the relay. The lead-out piece of the relay comprises a connection main body which is configured to be arranged inside a shell of the relay; the lead-out piece and the connecting main body are of a split type structure, the lead-out piece comprises a fixed section and a lead-out section, at least part of the fixed section is configured to be arranged in the shell, the fixed section is connected with the connecting main body, the lead-out section is configured to be arranged outside the shell, the lead-out section is connected with the fixed section, and the lead-out section is configured to be electrically connected with an external circuit. The lead-out sheet of the relay can simplify the processing technology, reduce the waste of raw materials such as precious metal copper materials of the lead-out sheet, and reduce the cost.

The invention discloses a parallel SiC MOSFET device and a preparation method thereof, and the preparation method comprises the steps: dividing a device epitaxial layer into a cellular region and an auxiliary current sharing region, and enabling the auxiliary current sharing region to be located at the edge of one side of the cellular region; performing groove etching treatment on the device epitaxial layer through a first preset process so as to etch a plurality of main grooves in the cellular region; groove etching treatment is carried out on the device epitaxial layer again through a second preset process, so that a plurality of shallow grooves are etched in the auxiliary current sharing region, and the groove depth of the shallow grooves is smaller than that of the main grooves; performing light doping processing on the bottom of each shallow trench to enable the plurality of shallow trenches to form a dynamic current sharing structure; and sequentially preparing a grid electrode, a source electrode and a drain electrode on the epitaxial layer of the device through a third preset process to obtain the parallel SiC MOSFET device. According to the technical scheme, when the prepared parallel SiC MOSFET device is used in parallel, the dynamic current sharing effect can be achieved through adjustment of the internal structure of the device, and a complex external circuit does not need to be designed.

Systems, devices, and methods for reducing Vpass disturb are provided. In one aspect, a semiconductor device includes a first deck and a second deck, each including memory cells coupled to corresponding word lines; and a peripheral circuit coupled to the memory array structure. For programming a first memory cell of the first deck, the peripheral circuit configured to: apply a first voltage to a first word line coupled to the first memory cell; apply a second voltage to a second word line of the first deck; apply a third voltage to a third word line between the first word line and a fourth word line of the second deck; and apply a fourth voltage to the fourth word line. The first voltage is greater than the second voltage, the second voltage is greater than the fourth voltage, and the fourth voltage is greater than the third voltage.

A semiconductor structure and a forming method thereof, the structure comprising: a substrate comprising a plurality of active regions extending along a first direction and arranged in parallel along a second direction, the first direction being perpendicular to the second direction; a plurality of gate structures in each active region, the gate structures being arranged in parallel along the first direction and extending across the active region along the second direction; and source-drain doped layers in the active regions on both sides of the gate structures, the source-drain doped layers being arranged alternately with the gate structures along the first direction, and the source-drain doped layers comprising source regions and drain regions arranged alternately, the source regions being used for grounding and the drain regions being used for external circuit connection, the source regions and the drain regions of the source-drain doped layers of adjacent active regions being arranged alternately along the second direction. The present application is advantageous to improve the working performance of the semiconductor structure.

The invention belongs to the technical field of superconducting electrical engineering modeling, and discloses an interpolation magnet dynamic loss calculation method and system, and the method comprises the steps: obtaining the size parameters of an interpolation magnet, so as to construct a geometric model of the interpolation magnet; calculating a third-order resistivity matrix of the interpolated magnet in the geometric model, and adding the third-order resistivity matrix into the geometric model as a physical parameter; a background magnetic field function is added to the boundary of the geometric model, the background magnetic field function value is adjusted to simulate the excitation process of a back field magnet, and a stable background magnetic field is obtained; under a stable background magnetic field, applying a working current to the interpolating magnet through an external circuit, and calculating the current density distribution of the interpolating magnet in a current increasing or decreasing process according to an H equation; and based on the third-order resistivity matrix and the current density distribution, obtaining the dynamic loss of the interpolation magnet in the current rising or falling process. According to the method, the current distribution of the interpolation magnet in the excitation process can be reflected truthfully, the dynamic loss can be calculated quickly, and the simulation accuracy is high.

The application discloses a PIN type back incidence germanium-silicon photodiode based on inductance peaking, and the photodiode structure sequentially comprises a back incidence area, an absorption area and a collection area from top to bottom; the back incidence area comprises a silicon substrate and silicon microlenses formed by etching on the back surface of the silicon substrate; the absorption area comprises a doped area and a germanium absorption layer, the built-in electric field is formed by P-type and N-type doping of the doped area, and the germanium absorption layer is used for absorbing incident photons and generating photo-generated carriers; the collection area comprises a self-alignment resistance layer, an interlayer dielectric layer, a coplanar waveguide electrode and a metal bump, and the geometric parameters of the coplanar waveguide electrode are optimized to introduce a compensation inductance L p The inductance peaking is realized, so that the bandwidth of the photodiode is optimized; the metal bump is arranged on the surface of the coplanar waveguide electrode to realize flip-chip bonding of the photodiode and an external circuit. p The bandwidth of the device can be significantly improved under the premise of ensuring high responsivity and low dark current.

The invention belongs to the technical field of biosensors and environmental monitoring, and particularly relates to an MFC sensor loaded with an interpenetrating network nanofiber anode and application of the MFC sensor. Interpenetrating network nanofibers are prepared by adopting an electrostatic spinning technology and are loaded on a stainless steel mesh bracket to serve as a sensor anode electrode, and a titanium wire is connected with an air cathode through an external circuit to assemble the MFC sensor. The nanofiber has ultra-long length, high length-width ratio, specific pore structure, great specific surface area and high porosity, and has good biological compatibility with electrogenesis microorganisms, and the one-dimensional nanostructure can promote transmission of electrons from a biological membrane to an anode, so that an electric signal output by the sensor is enhanced. Therefore, when the prepared novel MFC sensor is applied to concentration analysis of pollutants in wastewater and early warning of toxic substances, the sensitivity can be greatly improved, and the response time can be greatly shortened.

The embodiment of the utility model discloses a power module packaging structure which comprises a substrate and a power unit. Wherein the power unit comprises a first metal structure, a power device and a second metal structure which are sequentially overlapped, the second metal structure comprises a copper layer, the power unit is electrically connected with the substrate through the first metal structure, and the power unit is electrically connected with an external circuit board through the copper layer of the second metal structure. Therefore, the stray inductance of the power unit can be reduced, and the heat capacity of the power unit can be increased.

The utility model relates to a temple switch, and relates to the technical field of vehicle accessories. The temple switch comprises a shell and a switch assembly, one end of the shell is provided with a containing cavity for installing the switch assembly, the temple switch further comprises an inserting block, the inserting block is located in the containing cavity, a cavity is formed in the inserting block, the end, provided with pins, of the switch assembly is clamped and embedded in the cavity, and the inserting block is located in the containing cavity. The other end of the switch assembly abuts against the inner wall of the shell, the insertion block is fixedly connected with the shell, and the end, away from the switch assembly, of the insertion block is provided with an insertion opening used for being connected with an external circuit. The assembling device has the effect of improving the assembling efficiency of the temple switch.

The invention is suitable for the technical field of intelligent electric meters, and relates to a sectional type soft start method of an external circuit breaker of an electric energy meter, a medium and a terminal. Determining the maximum torque force of the required motor, and selecting a proper motor; determining the longest contact time of the rotor commutation sheet and the electric brush; the first starting stage comprises the steps of confirming values of Ton and Toff, calculating the number of starting pulses, and pre-starting; in the second starting stage, a fixed pulse mode is adopted, the rotating speed is increased in the mode of increasing the duty ratio, and on the basis of the Ton time, the Ton opening time is increased; entering a third starting stage: increasing the duty ratio of the starting pulse again; after the three stages are completed, the duty ratio is switched to be 1, and full-speed operation is achieved. The method is convenient to operate and low in cost, the overload protection mode of the power supply is skipped while the starting current of the motor is reduced, and the power supply with low power supply capacity can bear large current impact when the motor is started.

The present application relates to the field of control of energy storage systems, and provides a power supply circuit and an energy storage system. The power supply circuit comprises: an acquisition module, a control module, a first power supply module, and a second power supply module; a first end of the acquisition module is configured to be connected to a power grid, a second end of the acquisition module is connected to a first input end of the control module, and the acquisition module is used for acquiring the ambient temperature of the power supply circuit; an output end of the control module is connected to a first input end of the first power supply module and a first input end of the second power supply module; both an output end of the first power supply module and an output end of the second power supply module are connected to an external circuit; and the control module is used for sending a control signal for interlocking to the first power supply module and the second power supply module on the basis of the ambient temperature acquired by the acquisition module. The present application can avoid the situation in which a UPS device cannot be started when the temperature is excessively high or excessively low, thereby ensuring normal and stable operation of the energy storage system.