1580results about "Transformers/inductances details" patented technology

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

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.

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.

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.

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.

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.

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.

Provided are a grain-oriented electrical steel sheet and stacked iron core having properties that can achieve both low iron loss and low noise in transformers by suppressing vibration caused by electromagnetic forces at the joint parts of the stacked iron core. The grain-oriented electrical steel sheet comprises, on at least one of both surfaces thereof, a plurality of strain regions that extend linearly in a direction transverse to a rolling direction of the steel sheet and are arranged at intervals in the rolling direction, wherein a standard deviation σBr of residual magnetic flux density Br determined from a hysteresis loop measured by exciting the steel sheet to 1.7 T with the rolling direction as a magnetization direction is 0.38 or less.

The present invention relates to a method for producing a soft magnetic alloy powder, a soft magnetic alloy powder, a powder magnetic core, a magnetic element, and an electronic device. Provided are a soft magnetic alloy powder having a low coercive force, a method for producing the soft magnetic alloy powder capable of stably producing the soft magnetic alloy powder, a powder magnetic core containing the soft magnetic alloy powder, a magnetic element provided with the powder magnetic core, and an electronic device provided with the magnetic element. A method for producing a soft magnetic alloy powder, said soft magnetic alloy powder being produced from FexCuaNbb (Si1-y (B1-zCrz) y) 100-x-a-b [wherein 0.3 < = a < = 2.0, 2.0 < = b < = 4.0, 75.5 < = x < = 79.5, 0.55 < = y < = 0.91, and 0.015 < = z < = 0.185 are satisfied. A step for producing an amorphous alloy powder having an average particle diameter of 10.0 [mu] m or more and 45.0 [mu] m or less; and a step for producing the soft magnetic alloy powder by heating at a temperature of 420 DEG C to 620 DEG C. The crystal grain size measured by X-ray diffraction is 5.0 nm to 20.0 nm, and the volume resistivity of the compact is 9.0 * 10 <-3 > [Omega * cm] or less.

A filter module includes a circuit board on or in which a ground electrode is provided, and a low pass filter on the circuit board. The low pass filter includes first and second inductors, and a capacitor. The first and second inductors are cumulatively connected to each other. Relationships of Lp+Lg−M≥0 and Lp−M<0 are satisfied, where Lp denotes an inductance of a path between a connection portion between the first and second inductors and a ground terminal, Lg denotes an inductance of a path between the ground terminal and the ground electrode, and M denotes a mutual inductance between the first and second inductors.

The invention discloses an oil-immersed transformer low-voltage side sleeve insulating protective cover device which comprises a protective assembly, a fixed part, a first sliding part and a second sliding part, and the fixed part, the first sliding part and the second sliding part are arranged outside the low-voltage side of a transformer in a sleeving mode. The fixing part, the first sliding part and the second sliding part are each provided with an outer convex face used for protection and an inner concave face facing the low-voltage side of the transformer, and the first sliding part and the second sliding part are arranged close to one side of the inner concave face of the fixing part and can slide along the inner concave face of the fixing part. The oil-immersed transformer protection device has the beneficial effects that protection operation on the low-voltage side of the oil-immersed transformer is achieved through cooperation of the fixed part, the first sliding part and the second sliding part, and by means of the characteristic that the first sliding part and the second sliding part can slide freely, workers can directly open the placement interval when the transformer is overhauled or maintained, and the operation is convenient. The operation of dismounting the insulating sleeve in the traditional maintenance work is avoided, and the maintenance efficiency is greatly improved.

The application discloses a traction transformer control cabinet and a rail train, and relates to the technical field of rail transit vehicles.The traction transformer control cabinet comprises a detachable shell and a control module arranged in the detachable shell; wherein the control module is used for determining the fan frequency of the fan in the cooling system of the traction transformer according to the first collection data sent by the whole vehicle controller of the rail train and the second collection data sent by the traction transformer, so as to utilize the fan frequency to perform frequency conversion control on the fan; the first collection signal comprises vehicle speed data, and the second collection signal comprises oil temperature data; through the arrangement of the traction transformer control cabinet, the control module in the traction transformer control cabinet performs frequency conversion control on the cooling fan according to the data such as the vehicle speed of the train and the oil temperature of the traction transformer, the low noise and the intelligentization of the traction transformer are realized, the noise of the rail train can be effectively reduced, and the passenger comfort is improved.

A stage (500) for supporting and moving an object (502) includes an electromagnet (510), first and second support structures (504; 506), a target (508), and a target-side bumper structure. The electromagnet may include a magnetic core, a coil (512), and a magnetic core side bumper attached to the magnetic core. The magnetic core disposed on the first support structure (506) is made of a magnetically conductive material. The magnetic core is shaped to have magnetic poles facing in the same direction. The coil generates a magnetic field. A second support structure (504) supports the object and moves the object relative to the first support structure. A target (508) is disposed on the second support structure (504) to actuate the second support structure in response to the magnetic field. The target-side buffer structure is attached to the target and is capable of colliding with the magnetic core-side buffer structure to establish an anti-collision gap between the magnetic core and the target. The uncertainty value of the anti-collision gap is less than 20 microns.

The invention provides a ferrite material and a preparation method and application thereof, the ferrite material comprises main components and auxiliary components, the main components comprise 25-35 mol% of NiO, 10-20 mol% of MnO, 0-5 mol% of ZnO and 52-60 mol% of Fe2O3, and the auxiliary components comprise Co2O3, CaCO3 and Nb2O5. The ferrite material has low magnetic conductivity and high Bs, the shrinkage rate of the ferrite material is basically consistent with that of a main material, the ferrite material can serve as an air gap material to obtain a magnetic core with segmented air gaps, and the problems that the segmented air gap magnetic core cracks when sintered, the air gap material permeates into the main material, and magnetic leakage occurs are solved.

The invention discloses a plastic package magnetic material for a chip inductor, a preparation method of the plastic package magnetic material and the inductor. The plastic package magnetic material comprises 96wt%-99wt% of alloy powder, 1wt%-4wt% of a resin layer and at least two atomic layer deposition layers, the two adjacent layers in the at least two atomic layer deposition layers are made of different materials; the at least two atomic layer deposition layers are coated on the outer surface of the alloy powder, and the resin layer is coated on the outer surfaces of the at least two atomic layer deposition layers. The plastic package magnetic material provided by the invention has relatively high magnetic conductivity, high saturation and low loss in a low-frequency band while having good fluidity, insulation and voltage resistance, so that miniaturization, lightness, thinness and high performance of an inductor are realized.

The invention relates to a low-loss FeSi-CIP composite soft magnetic powder core and a preparation method thereof. The adopted raw material powder is composed of amorphous nanocrystalline atomized FeSi series powder and filling powder composed of carbonyl iron powder and iron-silicon-aluminum powder. The carbonyl iron powder accounts for 15-25% of the mass of the raw material powder, the iron-silicon-aluminum powder accounts for 5-15% of the mass of the raw material powder, and the filling powder accounts for 25-35% of the mass of the raw material powder. Two-stage warm-pressing pressing is adopted, self-tempering is achieved to a certain extent at the specific warm-pressing temperature, and high direct-current bias performance and low iron loss can be obtained without heat treatment annealing after pressing forming. The effective magnetic conductivity of the powder core is 42 or above, the loss is as low as 350 mW / cm < 3 > (50 mT, 100 kHz), and the direct current bias performance under the external field of 100 Oe reaches 90% or above.

The invention provides an iron-silicon magnetic powder core and a preparation method and application thereof. The preparation method comprises the following steps: mixing iron-silicon magnetic powder, a modified insulating glue solution and a solvent, and carrying out pre-coating treatment to obtain modified iron-silicon magnetic powder; mixing the modified iron-silicon magnetic powder, a passivating agent and a solvent, and carrying out passivating treatment to obtain passivated magnetic powder; performing insulation coating on the passivated magnetic powder to obtain the passivated magnetic powder subjected to insulation coating; and carrying out compression and annealing treatment on the insulated and coated passivated magnetic powder to obtain the iron-silicon magnetic powder core. According to the invention, the modified insulating glue solution is adopted to pre-coat the iron-silicon magnetic powder, and subsequent insulating coating treatment is carried out, so that particles on the surface of the magnetic powder are distributed more uniformly, a better insulating effect can be achieved, and the loss of the magnetic powder core is effectively reduced. Moreover, the process can also improve the density and effective magnetic conductivity of the iron-silicon magnetic powder core, so that the iron-silicon magnetic powder core has more excellent magnetic performance, the efficiency is greatly improved, and the energy waste is reduced.

The present invention relates to the technical field of transformer manufacturing, and specifically relates to a transformer core lamination device, which includes a workbench. Above the workbench, there is insulating material, and there are several groups of the insulating material. There is a gap between adjacent two groups of the insulating material. The insulating material is connected to the workbench through a moving structure. Above the workbench, there is a suction cup. The suction cup is located above the insulating material. Above the suction cup, there is a turntable. The turntable is connected to the workbench through a power mechanism. The suction cup is connected to the turntable through an adjusting mechanism. For this transformer core lamination device, by setting two groups of suction cups, when one group of suction cups is used to pick up the core, the other group of suction cups can insert the core between adjacent two groups of insulating materials, which is beneficial to improving the efficiency of core lamination. Moreover, there is no need for manual lamination of the core, reducing the contact between the staff and the core, thereby being able to avoid the core from scratching the staff.

To identify the source of abnormal indicator components when characteristic abnormal indicator components other than benzenethiol and carbonyl sulfide are generated within an insulating medium.SOLUTION: Whether an abnormal indicator component generated in an insulating medium due to a discharge abnormality or overheating abnormality of a transformer is included in a pre-established list showing the relationship between materials applied to the transformer and abnormal indicator components generated in the insulating medium due to decomposition of those materials shall be investigated. If the abnormal indicator component is included in the list, the material containing the component shall be selected, and the abnormal site to which the material is applied shall be identified.SELECTED DRAWING: Figure 2