800 results about "High capacitance" patented technology

The invention provides a thermal runaway prevention and heat dissipation optimization method and system based on a capacitor module, and relates to the technical field of capacitor module thermal management, and the method comprises the steps: extracting the multi-source operation data features of a single capacitor through an improved layered visual attention network, carrying out the data complementation through combining a bidirectional probability diffusion model, and obtaining a multi-source operation data feature of the single capacitor; and discovering a causal relationship between network identification data by using a causal structure, generating a performance analysis report, constructing a spatio-temporal dynamic graph neural network to predict temperature field distribution, performing fault diagnosis and uncertainty quantification in combination with a multi-task learning framework, further constructing a layered early warning mechanism, and performing early warning based on a layered reinforcement learning framework. And a dynamic prediction map and a performance analysis report are combined, a heat dissipation strategy is optimized, cooperative control of the heat dissipation units is realized, an optimal heat dissipation scheme is finally obtained, thermal runaway is effectively prevented, and the safety and reliability of the capacitor module are improved.

The invention relates to the technical field of reactive power compensation, and discloses a switching control method and device based on reactive power compensation, and the method comprises the steps: obtaining the capacitance data and switching data of each capacitor branch; calculating power data corresponding to the power system based on a power algorithm; when it is detected that the power system meets the input control condition, calculating a capacity difference value corresponding to each capacitor branch according to the capacitance data and the power data of each capacitor branch; based on a switching strategy, according to the capacity difference value and the switching data, a first target capacitor branch meeting a capacitor switching condition is switched; and when it is detected that the power system meets the removal control condition, based on the switching strategy and according to the switching data, removing the second target capacitor branch meeting the capacitor removal condition. Therefore, the switching control flexibility and the switching control accuracy of the capacitor can be improved, the intelligent uniform switching of the capacitor is realized, the use safety of the capacitor is improved, and the service life of the capacitor is prolonged.

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.

Techniques are provided for hybrid bonding metallic bonding pads embedded in high-K dielectric material to form a high capacitance device. For example, a device comprises a first semiconductor structure bonded to a second semiconductor structure, and a plurality of metal pads at an interface portion between the first semiconductor structure and the second semiconductor structure. The plurality of metal pads are disposed in a high-K dielectric layer. The plurality of metal pads and the high-K dielectric layer comprise at least one capacitor.

The present invention generally relates to a method for synthesizing NiO / ZnO nanoparticles using solution combustion synthesis. The method comprising: dissolving 10 grams of Zinc nitrate hexahydrate (Zn(NO3)2·6H2O) and 10 grams of Nickel(II) nitrate hexahydrate (Ni(NO3)2·6H2O) in 30 ml of double-distilled water to obtain a solution; adding at least one fuel selected from a group consisting of glucose, urea, and combinations thereof to the solution; stirring the solution for one hour to achieve homogeneity and transferring the homogeneous solution into a Pyrex dish; placing the dish inside a preheated muffle furnace at a temperature range of 440° C. to 460° C. and allowing the solution to boil, froth, and undergo exothermic combustion thereby retrieving the resulting fine nanoparticle powder upon completion of the reaction within 20 minutes; and cooling the synthesized powder to room temperature and grinding the powder to achieve a fine, uniform consistency, thereby forming NiO / ZnO nanoparticles.

The utility model discloses a silicon capacitor electrode structure and a silicon capacitor, which can further improve the capacitance of a capacitor in a limited space by nesting, combining and arranging a plurality of groups of element arrays distributed in a triangular grid mode more reasonably and precisely, so that the capacitor can store more charges.

The invention relates to the technical field of capacitor life detection. The capacitor service life detection method comprises the steps of obtaining electrical performance response information of a capacitor under a multi-excitation condition, constructing a dynamic response behavior path of the capacitor in a state space based on the electrical performance response information, obtaining an evolution behavior sequence, and calculating the service life of the capacitor according to the evolution behavior sequence. And matching the evolution behavior sequence with the aging behavior path in the aging trajectory library, identifying a corresponding degradation trend type, obtaining current detection condition information, inputting the degradation trend type into a life evaluation model, and performing analysis in combination with the current detection condition information to obtain a life evaluation result. The method has the effect of improving the accuracy of service life evaluation of the capacitor.

The invention provides a preparation method of a silicon capacitor and the silicon capacitor, and relates to the technical field of capacitors, and the preparation method comprises the steps: etching a plurality of groove regions on a substrate slice; a plurality of layers of capacitor units are stacked on a substrate sheet containing a groove region from bottom to top, and each capacitor unit comprises a plurality of conductive layers and dielectric layers which are alternately stacked in a cross shape from inside to outside; a first electrode and a second electrode of each capacitor unit are formed at the top of the uppermost capacitor unit, the first electrode is connected with all the odd-numbered conducting layers, and the second electrode is connected with the substrate slice and all the even-numbered conducting layers. The silicon capacitor has the beneficial effects that the effective capacitance is increased downwards by arranging the groove region, and the effective capacitance is increased upwards by forming the multiple layers of capacitor units through alternate stacking, so that the capacity density can be increased, and the silicon capacitor with small size and high capacitance density can be prepared; the device is small in occupied area, high in unit volume utilization rate, suitable for semiconductor manufacturing procedures and beneficial to device integration and miniaturization.

The invention relates to the technical field of capacitor preparation, in particular to a preparation process optimization method and system applied to a high-frequency special capacitor, and the method comprises the steps: confirming a preparation environment, receiving a preparation instruction based on the preparation environment, and if the quality of a modified polypropylene film is not within a preset quality interval, determining that the modified polypropylene film is not in the preset quality interval; if yes, returning to the step of obtaining the modified polypropylene film according to the preparation instruction, and if the mass of the modified polypropylene film is within a preset mass interval, metallizing the modified polypropylene film by utilizing distillation equipment to obtain a metallized modified film; and completing the preparation process optimization method applied to the high-frequency special capacitor based on the sealed capacitor, the maximum power density report and the conductivity report. According to the invention, key parameters in the preparation process can be acquired and dynamically adjusted in real time, so that the accuracy of capacitor performance evaluation is improved.

The invention belongs to the technical field of flexible transparent energy storage, and discloses a preparation method and application of a flexible stretchable transparent MXene / AgNWs / PDMS composite film electrode, according to the method, a PDMS substrate film, AgNWs and MXene are assembled layer by layer, and a Schottky barrier is formed between one-dimensional AgNWs and two-dimensional MXene, so that the MXene material is firmly attached to the surface of the AgNWs material, corrosion of the AgNWs can be prevented, and the service life of the flexible stretchable transparent MXene / AgNWs / PDMS composite film electrode is prolonged. According to the MXene / AgNWs / PDMS composite film electrode, the cycle stability of the composite electrode is improved, a 1D / 2D heterostructure can be formed, the electrochemical storage capacity of the MXene / AgNWs / PDMS composite film electrode is effectively improved, and a flexible transparent supercapacitor with high light transmittance, high capacitance and mechanical flexibility perfectly unified is expected to be achieved.

The invention relates to the technical field of injection molding processes, in particular to an injection molding process for an ultrathin capacitor shell, which comprises the following steps: premixing ABS (Acrylonitrile Butadiene Styrene), polycarbonate and a reinforcing aid, and carrying out melt blending granulation on the obtained premix to obtain reinforced particles; the multi-cavity mold is preheated in advance; and the reinforced particles are fed into a screw extruder to be molten, then the molten reinforced particles are injected into a preheated multi-cavity mold, pressure maintaining treatment is carried out, then cooling and demolding are carried out, and the capacitor shell is obtained. The MBS and the modified glass fiber are added into the ABS / polycarbonate composite material to prepare the reinforced particles, so that the mechanical property of a product prepared from the reinforced particles is greatly improved, the product has good rigidity and toughness, and the tensile strength, bending strength and impact strength of the capacitor shell can be improved when the product is applied to the capacitor shell, and the service life of the capacitor shell is prolonged. Therefore, the shell of the capacitor can be made thinner on the premise of ensuring the quality, and the miniaturization of the capacitor is facilitated.

The invention discloses a nanoscale anti-sticking master batch for an MLCC base film, which is prepared from the following raw materials in parts by weight: 80 to 95 parts of unmodified PET (Polyethylene Terephthalate) resin, 2 to 10 parts of carboxyl modified PET resin, 1 to 10 parts of anti-sticking composition, 0.1 to 2 parts of dispersing agent and 0.1 to 3 parts of antioxidant. According to the anti-sticking master batch disclosed by the invention, the epoxy group grafted and modified nano silicon dioxide and the carboxyl modified PET resin are combined to act, so that an MLCC base film produced by the prepared anti-sticking master batch is high in surface flatness and good in anti-sticking performance. The carboxyl modified PET resin with the molecular weight of 9800 g / mol and the carboxyl number of 40-50 / mol is adopted, the viscosity of the obtained anti-sticking master batch is appropriate, and no adverse effect is caused to subsequent processing production. The roughness of the prepared MLCC base film can reach 15 nm or below, meanwhile, the anti-sticking performance is excellent, and the technical requirements for the high capacitance value and miniaturization of the MLCC can be met.

The invention discloses a semiconductor structure forming method and a semiconductor structure. The method comprises the steps of providing a substrate; forming a shallow trench isolation structure connected with the buried oxide layer in the top layer silicon, wherein the shallow trench isolation structure is provided with a capacitor region; forming a first interlayer dielectric layer on the substrate; at least two adjacent and mutually independent capacitor openings and a plurality of first conductive openings are formed, the projection of each capacitor opening on the surface of the shallow trench isolation structure is located in the capacitor area, and the projection of each first conductive opening on the surface of the shallow trench isolation structure is located outside the capacitor area; the capacitor opening and the first conductive opening penetrate through the first interlayer dielectric layer, the shallow trench isolation structure and the buried oxide layer; a capacitor conductive structure is formed in each capacitor opening, a first conductive structure is formed in the first conductive opening, and the capacitor conductive structures form MOM capacitors with adjacent positive and negative plates. According to the invention, high integration level is considered while large capacitance is provided.

A touch panel, display screen, and electronic device are disclosed. The touch panel includes a touch area and a wiring area. The touch area has a plurality of touch channels arranged at intervals and extending along a first direction, including adjacent first touch channels and second touch channels. Each first touch channel includes a first electrode, and each second touch channel includes a second electrode. The wiring area has a first end wiring and a second end wiring of the first electrode, and a first end wiring of the second electrode. The projection of the first end wiring of the second electrode in the first direction does not overlap with the projection of the first end wiring of the first electrode in the first direction, but overlaps with the projection of the second end wiring of the first electrode in the first direction. The projection of the second end wiring of the first electrode on the first end wiring of the second electrode overlaps with the first end wiring of the second electrode. Using this application can improve the accuracy of capacitive writing pen strokes.

The invention relates to an automobile capacitor and a manufacturing method thereof, and relates to the technical field of capacitors, and the automobile capacitor comprises a housing, capacitor bodies arranged in the housing at intervals, and a pouring sealant which is poured into the inner cavity of the housing to wrap the capacitor bodies. A first contact piece and a second contact piece which extend out of the shell are respectively arranged at two ends of the capacitor body, a heat dissipation hole is formed in the bottom of the shell, and a metal heat dissipation piece for dissipating heat of the first contact piece and the second contact piece is arranged in the heat dissipation hole; stepped grooves are formed in the metal radiating fins in the circumferential direction, and embedded convex rings matched with the stepped grooves are arranged at the radiating holes of the shell. With the adoption of the structure, heat of the capacitor body can be radiated through the metal radiating fins by arranging the metal radiating fins, so that the radiating effect of the capacitor is improved, and the capacitor is not easy to damage.

The utility model provides a DC-link film capacitor with high temperature resistance and high ripple current in the new energy field and a method, the DC-link film capacitor comprises a flame-retardant plastic shell, an insulating epoxy resin adhesive layer, a capacitor roll core and a metal connecting layer arranged at the corresponding position of the winding side wall surface of the capacitor roll core, and two tinned outgoing lines are connected to the corresponding positions of the two side wall surfaces of the metal connecting layer. By effectively improving the heat conductivity coefficient and the heat dissipation capability of the capacitor, heat in the inner core of the capacitor can be quickly and effectively dissipated, heat balance in a capacitor product is achieved, the capacitor has high temperature resistance, the charging time can be greatly shortened, and the service life of the capacitor is prolonged. The high-temperature-resistant high-ripple-current capacity requirement of capacitors in the new energy field such as the new energy field is met, the preparation process is simple, and the cost is low.

The invention provides a reactive compensation method and device. The method comprises the following steps: acquiring a voltage amplitude and a set value of a monitoring bus in a target new energy base; inputting the voltage amplitude and the set value of the monitoring bus into a target function of a preset switching scheme optimization model, and adjusting the number of input groups of a plurality of capacitors and the number of input groups of a plurality of reactors of the target new energy base in the target function until the target function meets a preset constraint condition, a minimum value of the objective function; and completing reactive compensation of the target new energy base by applying the input grouping number of each capacitor and the input grouping number of each reactor when the minimum value of the target function is obtained. According to the invention, the precision of grouping switching of the capacitor and the reactor can be improved, and the reliability of reactive compensation can be improved.

The invention discloses a composite switch for reactive compensation capacitor bank switching and a control method thereof, and relates to the technical field of capacitor switching, and the method comprises the steps: detecting the capacity and switching data of each branch in a back-to-back capacitor bank through a reactive compensation controller, and determining a group capacitor to be subjected to switching operation according to a preset switching control condition; the reactive compensation controller determines the switching time sequence of each phase of each group capacitor according to the confirmed input / output operation instruction to be executed and the reference voltage of each group capacitor; and calculating the reactive state and the switching state of the switched power system through the reactive compensation controller. Compared with a conventional switching control method, the automatic phase selection switching control method has the advantages that closing inrush current and overvoltage are lower, the accuracy of phase control switching of the capacitor bank can be improved, high-frequency inrush current and pre-breakdown arcing phenomena can be reduced, meanwhile, the probability of rebreakdown can be reduced, and the service life of the capacitor bank can be prolonged. And the performance of the composite switch switched capacitor bank is improved.

The utility model discloses a silicon capacitor electrode structure and a silicon capacitor, which can further improve the capacitance of a capacitor in a limited space by nesting, combining and arranging a plurality of groups of element arrays distributed in a quadrilateral grid mode more reasonably and precisely, so that the capacitor can store more charges.

The invention relates to the technical field of capacitor film production, in particular to a capacitor film winding and unwinding tension adjusting mechanism and an adjusting method, which realize accurate control of tension in a capacitor film winding process and improve winding stability of a capacitor film. Comprising a supporting base fixedly arranged on the ground, and two sets of winding supporting plates are fixedly installed on the supporting base; the winding roller is rotationally arranged between the two sets of winding supporting plates and used for winding the capacitor film, and two quick change mechanisms are arranged on the winding roller; the two transmission wheel discs are rotationally arranged on the two winding supporting plates correspondingly and used for driving the winding roller to rotate; the two linear speed adjusting mechanisms are symmetrically arranged on the supporting seat and used for controlling the two transmission wheel discs to rotate and adjusting the rotating speeds of the transmission wheel discs; the pressing roller is rotationally arranged between the two linear speed adjusting mechanisms, and the pressing roller is arranged below the winding roller; the linear speed adjusting mechanism comprises a motor, a linear speed adjusting mechanism and a linear speed adjusting mechanism, the transmission shaft is fixedly connected with the output end of the motor.

The invention discloses a tunable magnetoelectric antenna and a preparation method thereof. The tunable magnetoelectric antenna comprises a substrate, wherein a selected surface of the substrate is provided with a first region and a second region which are sequentially arranged along a first direction; the magnetoelectric antenna is arranged in the first area, and a resonant cavity is formed between the magnetoelectric antenna and the first area; and the trench capacitor is arranged in the second area, and the trench capacitor is connected with the bulk acoustic wave excitation magnetoelectric antenna in series. The tunable magnetoelectric antenna is formed by connecting the magnetoelectric antenna and the ferroelectric capacitor in series, the ferroelectric capacitor is of a groove structure, the capacitance value of the capacitor can be effectively increased, and transverse leakage of sound waves can be restrained.

The invention discloses a capacitor implosion risk analysis method and system based on time sequence characteristics, and relates to the technical field of risk analysis, and the method comprises the steps: collecting the current, temperature and equivalent series resistance data in the operation process of a capacitor, and constructing an operation parameter time sequence data set; first-order instant change features are extracted in each time window, and second-order time sequence features are obtained based on continuous window analysis; identifying abnormal change features and counting occurrence times, duration and multi-parameter joint modes to form an enhanced implosion risk representation vector; and classifying each time window based on implosion risk characteristics, judging implosion risks to be low, medium and high levels, and generating a detailed risk early warning sequence and corresponding processing suggestions. According to the method, multi-parameter and multi-time-dimension continuous risk analysis and graded early warning can be realized, the operation safety of the capacitor is effectively improved, implosion accidents are prevented, and the overall risk management and control efficiency is improved.

The ultrasonic vacuum filling and sealing machine comprises a machine body, a filling and sealing box is arranged on one side of the upper surface of the machine body, a guide seat is arranged on the other side of the upper surface of the machine body, and a box opening for a power container to pass through is formed in the side, close to the guide seat, of the filling and sealing box. A filling and sealing gun vertically extending downwards is arranged in the center of the inner top wall of the filling and sealing box, and an ultrasonic generator and an electric heater are installed at the positions, located on the periphery of the filling and sealing gun, of the inner top wall of the filling and sealing box. Ultrasonic energy generated by working of the ultrasonic generator can change the fluidity and viscosity of a pouring material, promote permeation and filling of the pouring material, reduce bubbles and improve the uniformity of the pouring material, heat is generated by electrifying the electric heater, the pouring material is heated and subjected to heat preservation, premature cooling of the pouring material is avoided, pouring material forming is facilitated, and the production efficiency is improved. The automatic feeding and discharging device can replace traditional manpower for automatic feeding and discharging of capacitors, time and labor are saved, the feeding and discharging speed is high, and the capacitor pouring machining efficiency is improved.

The invention, which relates to the technical field of capacitor fault diagnosis, discloses a capacitor fault prediction and diagnosis system based on loss data, comprising a data acquisition module, an analysis module, a diagnosis module and a decision module. The data acquisition module is responsible for acquiring capacitance parameter data of a capacitor, collecting internal parameters of the capacitor through a capacitance sensor array, and transmitting the capacitance parameter data to the data preprocessing module; the data preprocessing module is used for further preprocessing the capacitance parameter data transmitted from the data acquisition module; according to the method, the percentage loss proportion and the residual service life RUL of the capacitor are calculated through the analysis unit based on the screened optimization characteristic data, different strategies are further executed in a graded mode, the loss trend of the capacitor is effectively calculated by analyzing the internal parameters C, ESR and tan delta of the capacitor, potential faults are recognized in advance, and the fault diagnosis accuracy is improved. Therefore, the accuracy of capacitor fault prediction is improved, and long-term stable operation of equipment is guaranteed.

The invention provides a capacitor capacitance value on-line monitoring method, device and system and an auxiliary discharge network, and the method comprises the steps: when a power converter is in an on-line operation state, collecting the voltage of a DC power supply for many times and recording a time point at a stage that a bipolar junction transistor is disconnected and a resistor is put into operation; determining the capacitance values of the first aluminum electrolytic capacitor and the second aluminum electrolytic capacitor according to the starting time point when the bipolar junction transistor is disconnected and the resistor is put into operation, the total output current of the first aluminum electrolytic capacitor and the second aluminum electrolytic capacitor, the resistance value of the resistor, the direct-current power supply voltage and the time point; the first and second capacitor branches are connected in parallel with the direct-current power supply; the first capacitor branch comprises a resistor and a first aluminum electrolytic capacitor which are connected in series; the second capacitance branch comprises a second aluminum electrolytic capacitor; the bipolar junction transistor is connected in parallel with the resistor. The capacitance value of the capacitor can be monitored on line, and the reliability of capacitor state monitoring is improved.

The invention provides an optimization method for improving the welding strength of a capacitor guide pin, and relates to the technical field of capacitors, and the optimization method comprises the steps: measuring the target guide pin attribute of the capacitor guide pin; after the target object attribute of the welding object is called locally, welding flux control analysis is conducted according to the target object attribute and the target guide pin attribute, and welding flux associated information is obtained; welding parameter initialization setting is conducted according to the target guide pin attribute and the target object attribute, and initial welding parameters are obtained; a welding strength optimization space is initialized based on the initial welding parameters and the welding feeding speed interval; welding control small-batch verification optimization is conducted in the welding strength optimization space, and target welding control parameters are output; and according to the target welding control parameters, welding operation of the capacitor guide pin is executed on the welding object. The technical problems of unstable welding quality and low production efficiency in the prior art can be solved, and the technical effects of improving the welding quality stability and optimizing the production efficiency are achieved.

The application discloses a preparation method of a high-density and high-stability conductive polymer film based on electrochemical polymerization, and comprises the following steps: using an oxidant solution and a BFDO monomer solution to pretreat a formed foil to obtain a working electrode, then immersing the working electrode and a reference electrode into an electrolyte to perform electrochemical oxidation polymerization, and obtaining the high-density and high-stability conductive polymer film based on electrochemical polymerization. The pretreated formed foil containing N-type conductive polymer PBFDO is prepared by using a chemical in-situ polymerization method on the formed foil, and when the pretreated formed foil is applied in the field of capacitors, the conductivity and electron transport capacity of the capacitor can be improved, and the stability problem caused by the coupling of positive and negative charges in the traditional capacitor is greatly improved.

A capacitor device (5) includes a capacitor (30), a capacitor bus bar (29), and a heat dissipation bus bar (26). One end of a capacitor bus bar (29) is electrically connected to the capacitor, the other end is electrically connected to the electrical component, and the capacitor bus bar extends in the arrangement direction of the capacitor and the electrical component. The heat dissipation bus bar (26) is provided with an end portion on the capacitor bus bar so as not to be present in the capacitor bus bar in the extending direction of the capacitor bus bar, and dissipates heat of the capacitor. Consequently, it is possible to suppress an increase in inductance of the capacitor bus bar and to improve heat dissipation of the capacitor at the same time.

Provided is a capacitor and a composite material for a capacitor which have a high capacity, and a manufacturing method thereof. Provided is a capacitor, a composite material for a capacitor, and a manufacturing method thereof, in which the capacitor includes a pair of electrodes and an electrolyte, and at least one of the electrodes contains a metal complex or an adduct thereof and a carbon material which are represented by expressions (1) or (2).

The invention relates to the field of integrated circuit design, and discloses a novel low-power-consumption relaxation oscillator circuit. The oscillator comprises a reference voltage generation module, an oscillation module, a comparison module and a shaping module, the reference voltage generation module adopts a sampling hold circuit to sample power supply voltage, and the oscillation module adopts a varactor capacitor and a constant current source to realize periodic charging and discharging. According to the oscillator, the circuit area is effectively reduced by utilizing the characteristic of high capacitance density of the varactor capacitor, the influence of power supply ripples on clock precision is avoided through the sampling hold circuit, and the oscillator design with low power consumption, high precision and simple structure is realized.