2135results about "Transformers/inductances details" patented technology

The invention discloses an efficient chemical liquid phase coating method of metal soft magnetic powder and application, and belongs to the technical field of preparation of soft magnetic materials, aluminum isopropoxide is dissolved to form a coating precursor solution, and an Al2O3 insulation coating layer is formed on the surface of the fluidized metal soft magnetic powder after hydrolysis and dehydration reactions. The aluminum isopropoxide is dissolved to form gel, the gel is uniformly mixed with the fluidized metal soft magnetic powder, dried gel can be formed on the surface of the metal soft magnetic powder after high-temperature airflow drying, and the dried gel is further calcined and dehydrated to form the high-insulativity Al2O3 coated metal soft magnetic powder. The method can be widely applied to surface insulation coating of the metal soft magnetic powder, has the characteristics of controllable coating layer thickness, simplicity, rapidness and high coating efficiency, and meets the requirements of industrial production such as large-scale, low-cost, safe and environment-friendly industrial production.

To provide: a magnetic particle-containing composition that can form a magnetic particle-containing film having excellent magnetic permeability and is excellent in sedimentation stability; a magnetic particle-containing film that is formed of the magnetic particle-containing composition; and an electronic component that includes the magnetic particle-containing film.SOLUTION: A magnetic particle-containing composition contains: magnetic particles having a plurality of peak tops in a particle size distribution curve showing a volume-based frequency distribution; a resin; and a solvent. If Dmin represents a particle diameter at a peak top Pmin where a particle diameter is minimized and Dmax represents a particle diameter at a peak top Pmax where a particle diameter is maximized among the plurality of peak tops in the particle size distribution curve showing a volume-based frequency distribution, then the ratio of Dmax to Dmin is more than 2.SELECTED DRAWING: Figure 1

To provide: a magnetic particle-containing composition that can form a magnetic particle-containing film having excellent magnetic permeability and is excellent in sedimentation stability; a magnetic particle-containing film that is formed of the magnetic particle-containing composition; and an electronic component that includes the magnetic particle-containing film.SOLUTION: A magnetic particle-containing composition contains: magnetic particles having a plurality of peak tops in a particle size distribution curve showing a volume-based frequency distribution; a resin; and a solvent. If Dmin represents a particle diameter at a peak top Pmin where a particle diameter is minimized and Dmax represents a particle diameter at a peak top Pmax where a particle diameter is maximized among the plurality of peak tops in the particle size distribution curve showing a volume-based frequency distribution, then the ratio of Dmax to Dmin is more than 2.SELECTED DRAWING: Figure 1

To provide: a magnetic particle-containing composition that can form a magnetic particle-containing film having excellent magnetic permeability and is excellent in sedimentation stability; a magnetic particle-containing film that is formed of the magnetic particle-containing composition; and an electronic component that includes the magnetic particle-containing film.SOLUTION: A magnetic particle-containing composition contains: magnetic particles having a plurality of peak tops in a particle size distribution curve showing a volume-based frequency distribution; a resin; and a solvent. If Dmin represents a particle diameter at a peak top Pmin where a particle diameter is minimized and Dmax represents a particle diameter at a peak top Pmax where a particle diameter is maximized among the plurality of peak tops in the particle size distribution curve showing a volume-based frequency distribution, then the ratio of Dmax to Dmin is more than 2.SELECTED DRAWING: Figure 1

To provide: a magnetic particle-containing composition that can form a magnetic particle-containing film having excellent magnetic permeability and is excellent in sedimentation stability; a magnetic particle-containing film that is formed of the magnetic particle-containing composition; and an electronic component that includes the magnetic particle-containing film.SOLUTION: A magnetic particle-containing composition contains: magnetic particles having a plurality of peak tops in a particle size distribution curve showing a volume-based frequency distribution; a resin; and a solvent. If Dmin represents a particle diameter at a peak top Pmin where a particle diameter is minimized and Dmax represents a particle diameter at a peak top Pmax where a particle diameter is maximized among the plurality of peak tops in the particle size distribution curve showing a volume-based frequency distribution, then the ratio of Dmax to Dmin is more than 2.SELECTED DRAWING: Figure 1

To provide: a magnetic particle-containing composition that can form a magnetic particle-containing film having excellent magnetic permeability and is excellent in sedimentation stability; a magnetic particle-containing film that is formed of the magnetic particle-containing composition; and an electronic component that includes the magnetic particle-containing film.SOLUTION: A magnetic particle-containing composition contains: magnetic particles having a plurality of peak tops in a particle size distribution curve showing a volume-based frequency distribution; a resin; and a solvent. If Dmin represents a particle diameter at a peak top Pmin where a particle diameter is minimized and Dmax represents a particle diameter at a peak top Pmax where a particle diameter is maximized among the plurality of peak tops in the particle size distribution curve showing a volume-based frequency distribution, then the ratio of Dmax to Dmin is more than 2.SELECTED DRAWING: Figure 1

The invention relates to the technical field of power grid deicing, in particular to an alternating current short circuit ice melting control method and an ice melting distribution transformer. The invention discloses a distribution transformer with voltage reduction and ice melting dual functions, an ice melting control system and a control method thereof. The transformer is provided with two groups of low-voltage output ends which are respectively used for power distribution, power supply and ice melting operation; the ice melting control system comprises a local intelligent control box and a far-end communication control box, and adopts a deep reinforcement learning model to calculate an optimal ice melting power gear and ice melting time; according to the control method, environment parameters and equipment parameters are obtained, cooperative control of the boundary switch, the ice melting switch, the protection switch and the short circuit switch is combined, and accurate adjustment of the ice melting process is achieved. The system realizes a one-key ice melting function, has the characteristics of simple operation, high ice melting efficiency, remote control and the like, remarkably improves the intelligent level, safety and reliability of power grid ice melting operation, and provides an innovative solution for anti-ice management of a power system.

The invention relates to a high-frequency and high-performance iron-nickel alloy magnetic powder core and a preparation method and application thereof, belongs to the field of metal magnetic powder cores, and solves the problems that in the prior art, when a metal magnetic powder core is applied at high frequency, high magnetic conductivity, high magnetic conductivity stability and high quality factor are difficult to consider, and the saturation flux density is low. And the preparation process is tedious. The invention discloses a preparation method of a high-frequency high-performance iron-nickel alloy magnetic powder core. The preparation method comprises the following steps: S1, preparing raw materials; s2, performing pretreatment; s3, the pretreated iron-nickel alloy powder and nano SiO2 powder are blended, and inorganic insulation coating powder is obtained; s4, adding the inorganic insulating coating powder into a first coating agent to obtain inorganic and first organic insulating coating powder; s5, adding the inorganic and first organic insulation coating powder into a second coating agent to obtain inorganic and double-layer organic insulation coating powder; and S6, compression molding. The comprehensive magnetic performance of the iron-nickel magnetic powder core is improved, and the preparation process is simplified.

A circuit board structure includes a core, a wiring layer and a buried passive component. The wiring layer and the buried passive component are disposed on the core, and the buried passive component is electrically connected to the wiring layer. The buried passive component includes a first spiral metal layer, a second spiral metal layer and a dielectric interlayer. The first spiral metal layer is intertwined with the second spiral metal layer. The dielectric interlayer is disposed between the first spiral metal layer and the second spiral metal layer. The first spiral metal layer and the second spiral metal layer are spaced apart by the dielectric interlayer at least in the core.

A magnetic alignment system can include a primary annular magnetic alignment component and a secondary annular magnetic alignment component. The primary alignment component can include an inner annular region having a first magnetic orientation, an outer annular region having a second magnetic orientation opposite to the first magnetic orientation, and a non-magnetized central annular region disposed between the primary inner annular region and the primary outer annular region. The secondary alignment component can have a magnetic orientation with a radial component. Additional features, such as a rotational magnetic alignment component and / or an NFC coil and circuitry can be included.

In this power supply device, a main circuit includes a core, a first common mode coil, a second common mode coil, a first connection line, and a second connection line, and a noise attenuation unit includes an auxiliary coil having a third winding and a third coating, a capacitor connected to the first connection line, and a resonance suppression unit that includes an amplification unit and a low-pass filter connected to an output terminal of the amplification unit and that is provided between the auxiliary coil and the capacitor.

Provided is a powder magnetic core that can reduce carbon dioxide emissions generated during the manufacture of the powder magnetic core. [Solution] A powder magnetic core comprising recycled powder having an insulating film on the surface of soft magnetic particles, the recycled powder being soft magnetic powder obtained by pulverizing used powder magnetic cores.

An electronic component is provided that includes a substrate, an insulator layer expanding over a surface of the substrate, a planar conductor on the substrate or in the insulator layer and expanding in a plane parallel to the surface of the substrate, and an inductor conductor pattern on the insulator layer or in the insulator layer. When viewed in a direction perpendicular to the surface of the substrate, a length in a longitudinal direction of a region in which a region with the inductor conductor pattern overlapping the planar conductor is represented by Ls, and a distance between the inductor conductor pattern and the planar conductor is represented by d, such that Ls / d is 1 or more and 60 or less.

Devices methods for triggering alarms and cautions for electrical equipment may include receiving, at edge device, data of an electrical device, including dissolved gas data or electrical data; setting, based on a comparison of a measurement value of the data to an upper rolling window-based threshold or to a lower rolling window-based threshold, a measurement flag for the electrical device; determining a rate-of-change (RoC) of the data; setting a RoC flag for the electrical device based on a comparison of the RoC to a delta RoC-based threshold; determining an acceleration of the data; setting an acceleration flag for the electrical device based on a comparison of the acceleration to a percentile log-ratio change of measurements threshold; and setting one of a no flag, a caution flag or an alarm flag for the electrical device based on the measurement flag, the ROC flag, and the acceleration flag.

Provided is a laminated iron core including: a laminate of electromagnetic steel sheets and a granular oxide that contains magnetite and covers a side surface of the laminate, in which a contact angle of a water droplet until 20 minutes elapses after dropping the water droplet on the side surface covered with the granular oxide is 80° or more. When heights of peaks detected in ranges of 2θ of 41° to 42° and 38° to 39° in XRD measurement of the side surface covered with the granular oxide are represented by H1 and H2, respectively, H1 / (H1+H2) is 0.8 or more.

A packaged integrated circuit (IC) including a package substrate. The package substrate includes pins; a first metal layer on the pins; a second metal layer on the first metal layer; vias on the second metal layer; an insulation material covering the pins, the first metal layer, the second metal layer, and the vias, and exposing surfaces of the pins and the vias. The packaged IC further includes a semiconductor die on the package substrate, the semiconductor die having a surface opposing the second metal layer; metal posts coupled between the semiconductor die and the exposed surfaces of the vias; and a mold compound covering the semiconductor die and the metal posts, in which the surface is separated from the second metal layer by the insulation material and the mold compound.

A magnetic core powder including granular powder A of Fe-based, magnetic, crystalline metal material and granular powder B of Fe-based, magnetic, amorphous metal material; the particle size d50A of granular powder A at a cumulative frequency of 50 volume % being 0.5 μm or more and 7.0 μm or less, and the particle size d50B of granular powder B at a cumulative frequency of 50 volume % being more than 15.0 μm, in a cumulative distribution curve showing the relation between particle size and cumulative frequency from the smaller particle size side, determined by a laser diffraction method; the magnetic core powder meeting (d90M−d10M) / d50M of 1.6 or more and 6.0 or less, d10M being a particle size at a cumulative frequency of 10 volume %, d50M being a particle size at a cumulative frequency of 50 volume %, and d90M being a particle size at a cumulative frequency of 90 volume %.

The invention discloses a transformer iron core production device, and relates to the technical field of transformer iron core production, the transformer iron core production device comprises a workbench and a supporting seat fixedly connected to the top of the workbench, and silicon steel sheets are stacked on the top of the supporting seat; and the alternating smoothing device is located at the top of the supporting base and used for flattening the stacked silicon steel sheets, and the alternating smoothing device comprises a trapezoidal smoothing rod arranged at the tops of the silicon steel sheets. According to the invention, the alternating smoothing device is arranged, and the trapezoidal smoothing rods of the alternating smoothing device move from the top center of the silicon steel sheet to the end part for smoothing, so that the unevenness problems of tilting, wrinkling and the like of the silicon steel sheet can be effectively eliminated, and the silicon steel sheets are tightly attached; the silicon steel sheets in the stacking process can be continuously flattened, it is ensured that each layer of silicon steel sheets can be flatly stacked, and the overall flatness and tightness of the iron core are improved.

Various systems and methods are presented regarding utilizing a spiral resonator to enhance coupling between a first inductor loop and a second inductor loop to enable coupling between a first qubit and a second qubit. Operation of the first inductor loop can be controlled by a flux-tunable TCQ coupler, wherein flux-tuning can adjust operation from an OFF state (no coupling between the first qubit and the second qubit) to an ON state (the first qubit and second qubit are coupled). The spiral resonator can be located at the center of, and in the same plane as the loop of the first inductor loop. The spiral resonator can enhance inductive coupling between the first loop inductor and the second loop inductor.

The utility model belongs to the technical field of transformer assembly, and discloses a lamination workbench. The lamination workbench comprises a base assembly which comprises a first bearing frame; the number of the telescopic assemblies is at least two, each telescopic assembly can stretch out and draw back in the first direction, the at least two telescopic assemblies are arranged on the first bearing frame in parallel and at intervals, and at least one telescopic assembly can slide on the first bearing frame in the second direction; the at least two telescopic assemblies are used for bearing iron core laminations of the transformer. The lamination workbench disclosed by the utility model does not need to be repeatedly built, so that the product universality is improved, the lamination time is shortened, and the batch assembly of transformers is facilitated.

A magnetic alignment system can include a primary annular magnetic alignment component and a secondary annular magnetic alignment component. The primary alignment component can include an inner annular region having a first magnetic orientation, an outer annular region having a second magnetic orientation opposite to the first magnetic orientation, and a non-magnetized central annular region disposed between the primary inner annular region and the primary outer annular region. The secondary alignment component can have a magnetic orientation with a radial component. Additional features, such as a rotational magnetic alignment component and / or an NFC coil and circuitry can be included.

To provide an inductor for use in an aerosol provision device.SOLUTION: The inductor includes an electrically conductive element and a secondary coil. The element includes an electrically conductive non-spiral first portion 601 coincident with a first plane, an electrically conductive non-spiral second portion 602 coincident with a second plane that is spaced from the first plane, and an electrically conductive connector 603 that electrically connects the first portion 601 to the second portion 602. The electrically conductive element is configured such that, when a varying electrical current is applied to the electrically conductive element, a corresponding varying electrical current is induced in the secondary coil.SELECTED DRAWING: Figure 6

A packaged integrated circuit (IC) (300) including a package substrate (110). The package substrate includes pins (321); a first metal layer (323) on the pins; a second metal layer (325) on the first metal layer; vias (322, 324, 326) on the second metal layer; an insulation material (308a, 308b) covering the pins, the first metal layer, the second metal layer, and the vias, and exposing surfaces of the pins and the vias. The packaged IC further includes a semiconductor die (101) on the package substrate, the semiconductor die having a surface (301) opposing the second metal layer; metal posts (305a, 305b) coupled between the semiconductor die and the exposed surfaces of the vias (326); and a mold compound (304, 304a) covering the semiconductor die and the metal posts, in which the surface is separated from the second metal layer (325) by the insulation material (308a) and the mold compound (304a).

Methods and apparatus for amplifying a signal for transmission via an amplifier circuit are described. An example amplifier circuit generally includes an amplifier configured to amplify a signal for wireless transmission and including a first transistor and a second transistor. The amplifier circuit also includes: a transformer coupled to an output of the amplifier; a first coil coupled to the first transistor and inductively coupled to the transformer; and a second coil coupled to the second transistor and inductively coupled to the transformer.

A topper device for a gaming machine according to an aspect of the present invention is coupled to an upper portion of a gaming machine body, operates in conjunction with the gaming machine, and includes: a display module; a housing on which a display module is fixed and which includes a first coupling structure capable of being coupled with the upper portion of the gaming machine body; and a wireless power receiving module which supplies necessary power to the display module based on power provided from the gaming machine, wherein the wireless power receiving module is provided power from the gaming machine body using a wireless power receiving coil unit equipped with the first coupling structure and the wireless power receiving coil unit can be magnetically coupled to a wireless power transmission coil unit provided in the upper portion of the gaming machine body.

A z-disaggregated integrated circuit package substrate assembly comprises a first substrate component (a coreless patch), a second substrate component (a core patch), and a third substrate component (an interposer). The coreless patch comprises thinner dielectric layers and higher density routing and can comprise an embedded bridge to allow for communication between integrated circuit dies attached to the coreless patch. The core layer acts as a middle layer interconnect between the coreless patch and the interposer and comprises liquid metal interconnects to connect the core patch physically and electrically to the coreless patch and the interposer. Core patch through holes comprise liquid metal plugs. Some through holes can be surrounded by and coaxially aligned with magnetic plugs to provide improved power signal delivery. The interposer comprises thicker dielectric layers and lower density routing. The substrate assembly can reduce cost and provide improved overall yield and electrical performance relative to monolithic substrates.

An adverse effect on characteristics of a coil component can be reduced. A coil component includes a drum core and first and second wires. The drum core includes a winding core and first and second flanges. The second wire includes first, second and third wound portions. The second wound portion is located on the second flange side with respect to the first wound portion in a direction along a central axis X, and at least a part of the second wound portion is wound around an outer peripheral surface of the winding core. When the second wire is traced from a first end to a second end in the second wound portion, the second wire has a first intersection and a second intersection intersecting a specific one turn of the first wire within a range where the second wire is wound by two turns.

The signal transmission device includes first, second and third chips. The first and second chips includes respectively: a first input pad; an ADC that converts a first analog signal inputted to the first input pad into a first digital signal; a first transmission circuit that generates a first pulse signal in correspondence to the first digital signal; a first output pad that outputs the first pulse signal; a second input pad; a first reception circuit that generates a second digital signal in correspondence to a second pulse signal inputted to the second input pad; a DAC that converts the second digital signal into a second analog signal; and a second output pad that outputs the second analog signal. The third chip, upon receiving the first pulse signal from the first output pad of the first chip, outputs the second pulse signal to the second input pad of the second chip.

An electronic component includes a first resonance circuit configured to include a first inductor and a first capacitor; and a second resonance circuit configured to include a second inductor and a second capacitor that are magnetically coupled to the first inductor, in which the first resonance circuit includes a third inductor electrically connected in series with the first inductor, and the third inductor is disposed to be magnetically coupled to the second inductor.

This grain-oriented electromagnetic steel sheet has a plurality of magnetic domain control processing lines on the surface thereof. When virtual lines are provided at 5-mm intervals inside an evaluation region, the standard deviation of the intervals of the magnetic domain control points, which are the intersecting points between the virtual lines and the magnetic domain control processing lines, is 1.25 mm or more, and an average value of the magnetic domain widths measured along the virtual lines is 600 μm or less for at least one virtual line.