42results about How to "Good inductance" patented technology

A solid electrolytic capacitor (A1) includes a first and a second porous sintered bodies (1). Each sintered body (1) is flat, with its thickness being small relative to the width or the length. The first and the second sintered bodies (1) are spaced from each other in the widthwise or lengthwise direction.

The embodiment of the invention provides a thin film inductor. The thin film inductor comprises a first thin film magnetic core and at least one second thin film magnetic core (230); at least one winding (220) is wound on the first thin film magnetic core (210) in the hard magnetization direction of the first thin film magnetic core (210); no winding is wound on the second thin film magnetic cores (230), each second thin film magnetic core (230) is not in the same plane with the first thin film magnetic core (210), the hard magnetization direction of each second thin film magnetic core (230) is same as that of the first thin film magnetic core (210), and projections, on a second plane, of the second thin film magnetic cores (230) and the first thin film magnetic core (210) are at least partially overlapped. The risk that magnetic flow is easily saturated in the easy magnetization direction can be reduced, and better inductance can be produced.

The present invention discloses an improved inductor structure, which applies to the semiconductor field, particularly to a system-on-chip, and which comprises a substrate, a first conductive patterned film, and a first insulating layer formed between the substrate and the first conductive patterned film. The substrate has a base and an accommodation portion formed in the base. A magnetic material is filled into the accommodation portion to form a magnetic region. The accommodation portion is fabricated via etching the base or drilling a through-hole in the base. A plurality of conductive wires is arranged in a spiral way to form the first conductive patterned film. A protective layer covers the surface of the first conductive patterned film and isolates the contact of the first conductive patterned film and moisture.

The invention relates to composite magnetic powder and a chip coil component using the same. According to the invention, the chip coil component comprises coil patterns stacked on a ceramic layer or wound on a ceramic core, wherein the ceramic layer or the ceramic core includes powder with a core-shell structure, the powder with the core-shell structure is made of SiO2 powder, and the shell is made of ferrite powder.

An integrated circuit, including, a die with an electronic circuit embedded thereon; wherein the electronic circuit includes a differential power amplifier and pads to electronically interface with the electronic circuit; a packaging encasing the die with contact pins to connect between the integrated circuit and external elements; wires connecting between the pads and the contact pins; a converter that includes capacitors and inductors to combine the outputs from the differential power amplifier to form a single ended output at one of the contact pins; wherein inherent inductance of some of the wires serve as the inductors of the converter.

The invention discloses metal powder for preparing a nanocrystalline magnetic core. The metal powder is prepared according to the following steps: conducting heat treatment on a Fe-based amorphous thin belt obtained according to a rapid cooling method, so as to convert the Fe-based amorphous thin belt into a nanocrystalline thin belt, wherein the Fe-based amorphous thin belt comprises the following ingredients by weight: 3 to 15 percent of Ni, 1 to 10 percent of Si, 1 to 4 percent of B, 1 to 9 percent of Al, and Fe in balancing amount; crushing the nanocrystalline thin belt to obtain nanocrystalline metal powder; conducting ball milling shaping on the nanocrystalline metal powder; and screening the nanocrystalline metal powder, and mixing to obtain powder granules containing 90 to 98 percent of first powder penetrating a -200 mesh and 2 to 10 percent of second powder penetrating a -150 to +200 mesh. The magnetic core prepared according to the technical scheme has stable magnetic permeability, loss value and DC offset capability.

The invention provides an assembled stacked inductor device, and particularly relates to a power-type inductor. The assembled stacked inductor device comprises an approximately 8-shaped sheet metal coil formed through stamping, three iron core bodies and two sheet bodies; after the iron core bodies are assembled in the upper, middle and lower spaces of the approximately 8-shaped sheet metal coil, the assembled stacked inductor device of two or three inductance coils is formed on the periphery of the iron core bodies. The inductor device of the structure can realize promotion of the inductance value and adjusts the size of the inductance value by means of the control for the gaps of the iron core bodies, so that flexible combination of various inductance characteristics is achieved.

The invention relates to a production method for a magnetic material, in particular to a low-permeability, low-power consumption Fe-Si-Al powder material and a production method thereof. In the process of producing Fe-Si-Al powder, a melt-spinning machine rapid cooling method is adopted to produce a strip, and the cooling speed is 104 DEG C/second to 106 DEG C/second; and moreover, the flat Fe-Si-Al powder is produced by atmosphere-protected mechanical crushing. The invention has the advantages that: the oxygen content of the powder is greatly decreased, the grain size of the product is reduced, consequently, the loss of the Fe-Si-Al product is reduced, and the properties of the product are enhanced.

Provided is a highly reliable laminated coil component which does not require an opening to be formed between a ferrite layer and an internal conducting layer as conventionally, and enables alleviation of the internal stress between the ferrite layer and internal conducting layer caused by the difference between the firing shrinkage behavior and thermal expansion coefficient. A process is prepared for dissociating the boundary between the internal conductor (2) and the surrounding ferrite (11). This is done by enabling a complexing agent solution to reach a boundary between an internal conductor and ferrite (11) surrounding it by passing it from a side surface (3a) of a ferrite element (3) containing a spiral-shaped coil (4) and then through a side gap part (8). As the complexing agent solution, a solution is used that includes at least one substance selected from a group comprising aminocarboxylic acid and its salt, oxycarboxylic acid and its salt, amine, phosphoric acid and its salt and a lactone compound.

The invention provides a DC-DC converter and an electronic device using the same. The DC-DC converter comprises a transformer, a first inductor and a second inductor, wherein the transformer comprises a plurality of first voltage transformation modules, a second voltage transformation module and two first magnetic cores; wherein each first voltage transformation module comprises a primary winding and a secondary winding; the second voltage transformation module comprises a primary winding; the second voltage transformation module and the plurality of first voltage transformation modules are sequentially sleeved between the two first magnetic cores; the first inductor and the second inductor are arranged on the two sides of the transformer; the first inductor comprises a first winding, and the first winding is connected with the plurality of primary windings; and the second inductor comprises a second winding, and the second winding is connected with the secondary winding. The DC-DC converter provided by the invention is better in performance and better in inductance value, withstand voltage value and safety value.